WO2023201687A1 - 用于电池加热的装置和方法 - Google Patents

用于电池加热的装置和方法 Download PDF

Info

Publication number
WO2023201687A1
WO2023201687A1 PCT/CN2022/088411 CN2022088411W WO2023201687A1 WO 2023201687 A1 WO2023201687 A1 WO 2023201687A1 CN 2022088411 W CN2022088411 W CN 2022088411W WO 2023201687 A1 WO2023201687 A1 WO 2023201687A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
switch
electrical device
charging
power converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/088411
Other languages
English (en)
French (fr)
Inventor
陈伟
赵元淼
潘先喜
黄孝键
颜昱
但志敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP22937923.5A priority Critical patent/EP4404335A4/en
Priority to JP2024518941A priority patent/JP7567103B1/ja
Priority to KR1020247008671A priority patent/KR102718024B1/ko
Priority to CN202280004070.7A priority patent/CN115769417B/zh
Priority to PCT/CN2022/088411 priority patent/WO2023201687A1/zh
Publication of WO2023201687A1 publication Critical patent/WO2023201687A1/zh
Priority to US18/625,899 priority patent/US12288856B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4264—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing with capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/70—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • H02J7/82—Control of state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/855—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/977—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a device and method for battery heating.
  • batteries Due to its advantages such as high energy density, rechargeability, safety and environmental protection, batteries are widely used in transportation, consumer electronics, energy storage systems and other fields.
  • This application provides a device and method for battery heating, which can solve the problem of battery self-heating at low temperatures through battery charging and discharging.
  • a device for battery heating the device being arranged at a first electrical consumer and comprising: a neutral electrically coupled to a motor winding of the first electrical consumer. a first interface of the point; a second interface electrically coupled to the negative terminal of the battery of the first electrical device; and a control module coupled to the control of the first electrical device and the second electrical device.
  • a third interface is engaged; the second interface is configured to engage a fourth interface electrically coupled to a negative terminal of a battery of the second powered device; and the control module is configured to perform the battery heating step.
  • a device for battery heating is provided.
  • the device is arranged at a charging pile and includes: a first switch coupled in series to a first end of the charging pile. between the charging gun and the second charging gun, wherein the first charging gun is configured to be engageable with a first charging socket of a first electrical device, and the first charging socket is electrically coupled to the first electrical device. the neutral point of the motor winding of the device, the second charging gun being configured to engage with a second charging socket of a second powered device, the second charging socket being electrically coupled to the motor of the second powered device the neutral point of the winding; and a control module coupled to the control systems of the first electrical device and the second electrical device to coordinately control the first electrical device and the second electrical device.
  • the first switch is configured to be closed to electrically couple the neutral point of the motor winding of the first electrical device to the electrical coupling of the second electrical device to the third electrical device.
  • the neutral point of the motor winding of the second electrical device is configured to perform the battery heating step.
  • a method for battery heating is provided, the method being performed at a consumer device or a charging station and comprising: electrically coupling a neutral of a motor winding of the first consumer device A first interface of the point is joined to a third interface that is electrically coupled to the neutral point of the motor winding of the second powered device; a second interface that is electrically coupled to the negative pole of the battery of the first powered device is joined to the electrically coupled a fourth interface to the negative electrode of the battery of the second electrical device; and performing the battery heating step.
  • Figure 1 is a schematic structural diagram of at least part of a system for battery heating disclosed in an embodiment of the present application
  • Figure 2 is a schematic structural diagram of a system for battery heating disclosed in an embodiment of the present application
  • Figure 3 is a flow chart of a method for battery heating disclosed in an embodiment of the present application.
  • the electrical system of some electrical devices often includes, in addition to the battery, a device such as a motor that utilizes the electrical energy stored in the battery, and a control device such as a power converter that utilizes the battery to power the motor. Therefore, when the battery in the electrical device needs to be heated based on the original components of the electrical device, it is necessary to avoid excessive modification or damage to these original components. For example, when the electrical device adopts a multi-phase system (such as a three-phase motor and a three-phase power converter), for the problem of battery heating, the existing technology often controls the motor in the electrical device to adopt 0 torque. The battery is heated in this way, which has a low heating rate, and due to the imbalance between the phases of the motor, it will cause vibration and noise problems in the motor, and may cause electrical and mechanical damage.
  • a multi-phase system such as a three-phase motor and a three-phase power converter
  • the balance between the phases should be considered to avoid, for example, vibration and noise problems in the motor due to imbalance between phases, which may cause mechanical and electrical damage to the motor.
  • the inventor proposed a system and method for battery heating.
  • the multi-phase windings of the motor are equivalently connected in parallel, thereby improving the flow rate.
  • the current of the battery of the electrical consumer device is to achieve rapid heating and ensure the multi-phase balance of the electrical consumer device during battery heating; in addition, the neutral points of the multi-phase windings of the motors of multiple electrical consumer devices are joined, so that these consumers
  • the batteries of the device can charge and discharge each other to improve heating efficiency.
  • the electrical device in the embodiment of the present application may be a pure electric vehicle, a hybrid vehicle, a battery vehicle, etc., but is not limited thereto, and may be any electrical device that includes a multi-phase motor and is powered by a battery.
  • Application scenarios of the device and method according to the present application may include rescue vehicles rescuing one or more vehicles that cannot be started due to low-temperature batteries, and charging after low-temperature rapid heating between two or more vehicles on a charging pile. wait.
  • FIG. 1 is a schematic structural diagram of at least part of a system 100 for battery heating disclosed in an embodiment of the present application.
  • the system 100 is suitable for direct battery heating between two electrical devices.
  • the system 100 shown in FIG. 1 includes an electrical device 1 and an electrical device 2 .
  • the electric device 1 may be a rescue vehicle, and the electric device 2 may be a rescued vehicle that requires battery heating due to low temperature.
  • the electric device 1 includes a battery 111, a motor 112 and a three-phase power converter 113 coupled between the battery 111 and the motor 112; the electric device 2 includes a battery 121, a motor 122 and a three-phase power converter 113 coupled between the battery 121 and the motor 122.
  • Phase power converter 123 is a schematic structural diagram of at least part of a system 100 for battery heating disclosed in an embodiment of the present application.
  • the system 100 is suitable for direct battery heating between two electrical devices.
  • the system 100 shown in FIG. 1 includes an electrical device 1 and an electrical device 2 .
  • the motors 112 and 122 shown in Figure 1 are three-phase motors with three-phase windings, but it should be understood that the embodiments of the present application are not limited thereto.
  • the motors 112 and 122 can be three-phase motors, six-phase motors, or nine-phase motors. Motors, etc., the motor windings of motors 112 and 122 respectively have three-phase inductance, six-phase inductance, nine-phase inductance, etc.
  • the topology of the three-phase power converters 113 and 123 shown in Figure 1 is that of a conventional AC/DC converter, which includes three parallel-coupled bridge arms for three phases respectively, wherein each bridge arm includes a series Coupled high-side switch and low-side switch.
  • phase upper arm switch V13 and lower arm switch V16 and include a freewheeling diode D11 coupled in parallel with the switch V11, a freewheeling diode D12 coupled in parallel with the switch V12, a freewheeling diode D13 coupled in parallel with the switch V13, and A freewheeling diode D14 is coupled in parallel to the switch V14, a freewheeling diode D15 is coupled in parallel to the switch V15, and a freewheeling diode D16 is coupled in parallel to the switch V16.
  • These switches can use one or more power switching devices such as Metal-Oxide Semiconductor Field-Effect Transistor (MOSFET) and Insulated Gate Bipolar Transistor
  • the system 100 may include an interface 116 of the powered device 1 electrically coupled to the neutral point of the winding of the motor 112 and an interface 115 electrically coupled to the negative pole of the battery 111 , and an interface 115 of the powered device 2 electrically coupled to An interface 126 of the neutral point of the winding of the motor 122 and an interface 125 electrically coupled to the negative pole of the battery 121 , wherein the interface 116 can be engaged with the interface 126 and the interface 115 can be engaged with the interface 125 to connect the electrical device 1 to the electrical consumer.
  • Devices 2 are electrically coupled together.
  • system 100 may further include a control module 117 disposed in the electrical device 1 , the control module 117 being coupled to the control systems of the electrical device 1 and the electrical device 2 , and configured to control the electrical device 1 and the electrical device 2 Coordinated control of power converters and other switches in the system.
  • the control module may also be arranged on the electrical device 2 .
  • system 100 may include switch K 116 coupled in series between the neutral point of the winding of motor 112 and interface 116 . Additionally, system 100 may include switch K 126 coupled in series between the neutral point of the winding of motor 122 and interface 126 .
  • the electrical device 1 may include a precharge circuit 114 coupled between the battery 111 and the power converter 113.
  • the precharge circuit 114 includes a positive electrode coupled in series with the power converter 111.
  • the input terminal of 113 is coupled in parallel with switch K113 between the positive terminal of capacitor C11, switch K115 coupled in series between the negative terminal of battery 111 and the negative terminal of capacitor C11, and coupled in series with the resistor and then coupled in parallel to both ends of K115 Switch K114.
  • the electrical device 2 may include a precharge circuit 124 coupled between the battery 121 and the power converter 123 .
  • the precharge circuit 124 includes a circuit coupled in series to the positive electrode of the battery 121 and in parallel to the input end of the power converter 123 .
  • K113 may be coupled in series between the negative terminal of the battery 111 and the negative terminal of the capacitor C11
  • K115 may be coupled in series between the positive terminal of the battery 111 and the capacitor C11.
  • K123 may be coupled in series between the negative terminal of the battery 121 and the negative terminal of the capacitor C12
  • K125 may be coupled in series between the positive terminal of the battery 121 and the positive terminal of the capacitor C12.
  • FIG. 2 is a schematic structural diagram of a system 200 for battery heating disclosed in an embodiment of the present application.
  • the system 200 is suitable for battery heating through a charging pile between two electrical devices. Components in the structure of FIG. 2 that are similar to those in FIG. 1 will not be described in detail here.
  • the system 200 may include a control module 220 arranged at the charging pile.
  • the control module 220 is coupled to the control systems of the electrical device 1 and the electrical device 2, and is used to control the electrical device 1 and the electrical device 2.
  • the power converter, other switches and charging piles in the system are coordinated and controlled.
  • the electrical device 1 may include a charging socket 118 coupled with the charging gun 231 of the charging pile
  • the electrical device 2 may include a charging gun coupled with the charging gun 231 of the charging pile.
  • 232 engaged charging socket 128 .
  • System 200 may include switch K231 coupled in series between charging guns 231 and 232. Specifically, switch K231 is coupled in series between the positive terminal of charging gun 231 and the positive terminal of charging gun 232.
  • the system 200 may further include a switch K232 coupled between the charging guns 231 and 232. Specifically, the switch K232 is coupled in series between the negative terminal of the charging gun 231 and the negative terminal of the charging gun 232. between.
  • the system 200 may further include switches K211 and K212 coupled in series between the charging gun 231 of the charging pile and the power module 210, wherein K211 is coupled in series between the positive terminal of the charging gun 231 and the power module. 210, K212 is coupled in series between the negative terminal of the charging gun 231 and the negative terminal of the power module 210.
  • the system 200 may further include switches K221 and K222 coupled in series between the charging gun 232 of the charging pile and the power module 210, wherein K221 is coupled in series between the positive terminal of the charging gun 232 and the power module.
  • K222 is coupled in series between the negative terminal of the charging gun 232 and the other negative terminal of the power module 210 . It should be understood that the system 200 may also include one or more but not all of the switches K211, K212, K221, and K222.
  • the electrical device 1 may further include switches K117 and K118 that couple the battery 111 to the charging socket 118 in parallel, wherein K117 is coupled in series between the positive terminal of the capacitor C1 and the positive terminal of the charging socket 118 K118 is coupled in series between the negative terminal of capacitor C1 and the negative terminal of charging socket 118.
  • the electrical device 2 may also include switches K127 and K128 that couple the battery 121 to the charging socket 128 in parallel, wherein K127 is coupled in series between the positive terminal of the capacitor C1 and the positive terminal of the charging socket 118, and K128 is coupled in series. between the negative terminal of capacitor C1 and the negative terminal of charging socket 118. It should be understood that one or more but not all of switches K117, K118, K127, K128 may also be included.
  • Figure 3 is a flow chart of a method 300 for battery heating disclosed in an embodiment of the present application.
  • the method 300 may be executed at the electrical device (in the system 100 shown in FIG. 1 ) or at the charging pile (in the system 200 shown in FIG. 2 ).
  • the first interface electrically coupled to the negative electrode of the battery of the first power-consuming device may be joined to a third interface electrically coupled to the negative pole of the battery of the second power-consuming device; in step At S32, the second interface electrically coupled to the neutral point of the motor winding of the first electrical consumer may be joined to a fourth interface electrically coupled to the neutral point of the motor winding of the second electrical consumer; and at step S33 At this point, the battery heating step may be performed to heat the battery of the first charging device and/or the second charging device. It should be understood that step S31 and step S32 may be performed in the order shown, may be performed simultaneously, or may be performed in the opposite order to that shown.
  • the battery heating step may include charging the battery of the second power device using the battery of the first power device.
  • using the battery of the first power-consuming device to the battery of the second power-consuming device may include closing the switch of the upper arm of the three-phase power converter of the first power-consuming device and turning off the three-phase power switch of the first power-consuming device.
  • the battery heating step may further include charging the battery of the first power-consuming device using the battery of the second power-consuming device.
  • using the battery of the second electrical device to charge the battery of the first electrical device may include turning off the switch of the upper arm of the three-phase power converter of the first electrical device and closing the first electrical device.
  • the switch of the lower arm of the three-phase power converter and the switch that closes the upper arm of the three-phase power converter of the second electrical device and disconnects the lower arm of the three-phase power converter of the second electrical device switch to utilize the discharge of the battery of the second electrical device to inductively charge the motor windings of the first electrical device and the second electrical device, and to close the upper arm of the three-phase power converter of the first electrical device and turn off the switch of the lower arm of the three-phase power converter of the first electrical device to charge the battery of the first electrical device after the inductor is charged.
  • a precharging circuit and a control module may also be used to perform a precharging step.
  • parameters of the battery of at least one of the first power-consuming device and the second power-consuming device may also be obtained, and whether the parameters satisfy the self-heating condition may be determined. If satisfied, the first switch coupled in series between the neutral point of the first electrical consumer and the first interface and the second switch coupled in series between the neutral point of the second electrical consumer and the third interface are closed .
  • the temperature of the battery of at least one of the first power-consuming device and the second power-consuming device can also be obtained, and whether the temperature meets a predetermined condition is determined. If the predetermined condition is not met, the steps of using the battery of the first power-consuming device to charge the battery of the second power-consuming device and the steps of using the battery of the second power-consuming device to charge the battery of the first power-consuming device are repeatedly performed. at least one of them until a predetermined condition is met.
  • Step 1 The electrical device 1 and the electrical device 2 can be coupled to each other through the interfaces 115 and 125, and the interfaces 116 and 126, and after the coupling, the electrical device 1 as the rescue vehicle can obtain the electrical device 2 as the rescued vehicle.
  • Parameters of the battery 121 such as but not limited to one or more of battery pack temperature, state of charge (State of Charge, SOC), voltage signal, etc.
  • Step 2 The control module 117 can determine whether the self-heating condition is met according to the parameters of the battery 121 .
  • the self-heating condition may include whether the battery pack temperature is lower than a predetermined temperature, whether the SOC is higher than the predetermined SOC, whether the voltage amplitude is higher than the predetermined voltage amplitude, etc. If the self-heating conditions are met, the self-heating mode can be turned on and the dual-purpose electrical device information can be exchanged. As shown in Figure 1, switches K116 and K126 can be closed under the control of the control module 117. If the self-heating conditions are not met, there will be no subsequent operations.
  • Step 3 Before the battery heating step, the capacitor C11 connected in parallel at the input end of the three-phase power converter 113 can be precharged based on the precharge circuit 114 .
  • the switches K113 and K114 can be closed under the control of the control module 117, thereby using the battery 111 to precharge the capacitor C11.
  • the switch K115 can be closed, and then the switch K114 can be opened.
  • the battery 121 may be used to precharge the capacitor C12 connected in parallel at the input end of the three-phase power converter 123 based on the precharge circuit 124 .
  • the switches K123 and K124 can be closed under the control of the control module 117, thereby using the battery 121 to precharge the capacitor C12. After the precharging is completed, the switch K125 can be closed, and then the switch K124 can be opened. In this way, it is ensured that the DC bus capacitors of the three-phase power converter are functioning properly, thereby facilitating the battery heating step.
  • Step 4 The discharge of the battery 111 can be used to charge the inductors of the motors 112 and 122.
  • the switches V11, V12, and V13 of the upper arm of the three-phase power converter 113 can be closed and the switches V14, V15, and V16 of the lower arm of the three-phase power converter 113 can be opened under the control of the control module 117.
  • the switches V21, V22, and V23 of the upper arm of the three-phase power converter 123 and close the switches V24, V25, and V26 of the lower arm of the three-phase power converter 123, so as to utilize the discharge of the battery 111 to the motor 112 and 122 winding for inductive charging.
  • the current path at this time is: the positive electrode of the battery 111 ⁇ the upper arms V11, V12, and V13 of the three-phase power converter 113 ⁇ the inductance of the winding of the motor 112 ⁇ the inductance of the winding of the motor 122 ⁇ the lower arm of the three-phase power converter 123 Bridge arms V24, V25, V26 ⁇ negative electrode of battery 111.
  • the switches V11 to V16 of the three-phase power converter 113 and the switches V21 to V26 of the three-phase power converter 123 can be turned on and off by applying power to the control terminals of these switches (such as gates of MOSFETs and IGBTs). etc.) control signal to achieve.
  • control terminals of these switches such as gates of MOSFETs and IGBTs. etc.
  • the three-phase power converter 113 there is no phase difference between the control signals of the upper arm switches V11, V12, and V13 belonging to the three phases, so that The three switches V11, V12, and V13 are closed or opened at the same time.
  • the three-phase power converter 123 there is no phase difference between the control signals of the upper-side switches V21, V22, and V23 belonging to the three phases, so that the three switches V21, V22, and V23 are closed or opened at the same time.
  • Step 5 After the inductor charging is completed, the battery 121 can be charged. Specifically, the switches V24, V25, and V26 of the lower arm of the three-phase power converter 123 can be opened under the control of the control module 117, and then the switches V21, V22, and V22 of the upper arm of the three-phase power converter 123 can be closed. V23 to charge the battery 121 through the inductance of the motors 112 and 122.
  • the current path at this time is: the positive pole of the battery 111 ⁇ the upper arms V11, V12, and V13 of the three-phase power converter 113 ⁇ the inductance of the winding of the motor 112 ⁇ the inductance of the winding of the motor 122 ⁇ the upper arm of the three-phase power converter 123
  • the bridge arms V21, V22, and V23 ⁇ the positive electrode of the battery 121 ⁇ the negative electrode of the battery 121 ⁇ the negative electrode of the battery 111.
  • Step 6 Step 4 and step 5 can be repeated under the control of the control module 117, that is, the battery 111 is used to charge the battery 121 multiple times until the predetermined conditions are met.
  • the predetermined condition may be a predetermined number of charges.
  • the predetermined condition may be a threshold temperature of the battery 121 .
  • the control module 117 can obtain the temperature of the battery 121 and determine whether the temperature is higher than the threshold temperature; if not higher than the threshold temperature, perform steps 4 and 5 again to use the battery 111 to quickly perform battery maintenance. 121 for charging. In this way, it is ensured that the battery is heated to the desired threshold temperature, allowing the battery to function properly.
  • the threshold temperature may be a preset lower temperature limit at which the battery can operate normally.
  • the threshold temperature may be 0°C or higher.
  • the threshold temperature may also be a temperature value set by the user.
  • Step 7 After charging the battery 121, the discharge of the battery 121 can be used to charge the inductors of the motors 112 and 122. Specifically, after completing the fast charging of the battery 121, the switches V11, V12, and V13 of the upper arm of the three-phase power converter 113 can be opened and the lower arm of the three-phase power converter 113 can be closed under the control of the control module 117.
  • the switches V14, V15, and V16 of the bridge arms, and the switches V21, V22, and V23 of the upper bridge arm of the three-phase power converter 123 are closed and the switches V24, V25, and V26 of the lower bridge arm of the three-phase power converter 123 are opened,
  • the discharge of the battery 121 is used to inductively charge the windings of the motors 112 and 122 .
  • the current path at this time is: the positive electrode of the battery 121 ⁇ the upper arms V21, V22, and V23 of the three-phase power converter 123 ⁇ the inductance of the winding of the motor 122 ⁇ the inductance of the winding of the motor 112 ⁇ the lower arm of the three-phase power converter 113 Bridge arms V14, V15, V16 ⁇ negative electrode of battery 121.
  • Step 8 After the inductor charging is completed, the battery 111 can be charged. Specifically, the switches V14, V15, and V16 of the lower arm of the three-phase power converter 113 can be opened under the control of the control module 117, and then the switches V11, V12, and V12 of the upper arm of the three-phase power converter 113 can be closed. V13, to charge the battery 111 through the inductance of the motors 112 and 122.
  • the current path at this time is: the positive electrode of the battery 121 ⁇ the upper arms V21, V22, and V23 of the three-phase power converter 123 ⁇ the inductance of the winding of the motor 122 ⁇ the inductance of the winding of the motor 112 ⁇ the upper arm of the three-phase power converter 113
  • Step 9 Steps 7 and 8 can be repeated under the control of the control module 117, that is, the battery 111 is used to discharge the battery 121 multiple times until the predetermined conditions are met.
  • the predetermined condition may be a predetermined number of discharges.
  • the predetermined condition may be a threshold temperature of battery 121.
  • the control module 117 can obtain the temperature of the battery 121 and determine whether the temperature is higher than the threshold temperature; if not higher than the threshold temperature, perform steps 7 and 8 again to use the battery 111 to quickly repair the battery. 121 for discharge.
  • the battery heating step may only include steps 4 and 5 of charging the battery 121 with the battery 111, or may also include steps 7 and 5 of charging the battery 111 with the battery 121 (ie, discharging the battery 121).
  • Step 8 During the charging and discharging process of the battery, current will flow through the battery and generate a large amount of heat through the Joule heating effect of the battery's internal resistance.
  • the motor winding inductance is connected in parallel, so that The equivalent impedance of the motor is relatively reduced, which greatly increases the current flowing through the battery; on the other hand, the battery has the characteristic of large internal resistance at low temperatures. Therefore, through the battery heating step, the battery can be quickly self-heated.
  • Step 10 Steps 4, 5, 7 and 8 can be repeated under the control of the control module 117, that is, the battery 111 is used to charge and discharge the battery 121 multiple times until the predetermined conditions are met.
  • the predetermined condition may be a threshold temperature of the battery 121 .
  • the control module 117 can obtain the temperature of the battery 121 and determine whether the temperature is higher than the threshold temperature; if not higher than the threshold temperature, perform steps 4, 5, 7 and 8 again to utilize The battery 111 quickly charges and discharges the battery 121 .
  • Step 11 After the temperature of the battery 121 reaches the threshold temperature, heating can be stopped. Specifically, after the switches V11 to V16 and V21 to V26 of the three-phase power converters 113 and 123 are turned off under the control of the control module 117, the switches K116 and K126 can be turned off to complete the self-heating process. In this way, after the battery heating step is completed, the electrical connection related to the neutral point can be disconnected and the power converter control related to the battery heating can be ended, so that the electrical device can enter the normal operating mode.
  • Figure 1 shows a situation in which a single rescue vehicle electrical device 1 and a single rescued vehicle electrical device 2 perform battery self-heating through charging and discharging
  • the electrical device 1 and the electrical device 2 may include multiple electrical devices.
  • a rescued vehicle that is, multiple electrical devices 2 can be connected in parallel to multiple electrical devices 1 of the rescue vehicle, and the multiple electrical devices 1 can charge and discharge the battery together with the multiple electrical devices 2 .
  • the following describes a method of battery heating through a charging pile between two electrical devices with reference to FIG. 2 .
  • Step 1 By connecting the charging guns 231 and 232 of the charging pile to the charging socket 118 of the electric device 1 and the charging socket 128 of the electric device 2 respectively, the electric device 1 and the electric device 2 can be connected to the charging pile, thereby
  • the control module 210 may obtain parameters of at least one of the batteries 111 and 112, such as but not limited to one or more of battery pack temperature, SOC, voltage signal, and the like.
  • Step 2 The control module 210 may determine whether the self-heating condition is met according to the parameters of at least one of the batteries 111 and 112 .
  • the self-heating condition may include whether the battery pack temperature is lower than a predetermined temperature, whether the SOC is higher than the predetermined SOC, whether the voltage amplitude is higher than the predetermined voltage amplitude, etc. If the self-heating conditions are met, the self-heating mode can be turned on. As shown in FIG. 2 , the switches K231 and K232 can be closed under the control of the control module 210 to couple the electrical device 1 and the electrical device 2 for self-heating of the battery. If the self-heating conditions are not met, you can jump to step 12 for charging.
  • Step 3 Before the battery heating step, precharging can be performed based on the precharge circuit. The specific process is referred to the above and will not be described in detail here.
  • Step 4 The discharge of the battery 111 can be used to charge the inductors of the motors 112 and 122.
  • the specific process is referred to the above and will not be described in detail here.
  • Step 5 After the charging of the inductor is completed, the battery 121 can be charged.
  • the specific process is referred to the above and will not be described in detail here.
  • Step 6 Step 4 and step 5 can be repeated under the control of the control module 117.
  • the control module 117 please refer to the above description and will not be described in detail here.
  • Step 7 After charging the battery 121, the discharge of the battery 121 can be used to charge the inductors of the motors 112 and 122. The specific process is described above and will not be described in detail here.
  • Step 8 After the inductor charging is completed, the battery 111 can be charged.
  • the specific process is referred to the above and will not be described in detail here.
  • Step 9 Step 7 and step 8 can be repeated under the control of the control module 117.
  • the control module 117 please refer to the above description and will not be described in detail here.
  • Step 10 Step 4, step 5, step 7 and step 8 may be repeated under the control of the control module 117 until the predetermined conditions are met.
  • the predetermined condition may be a threshold temperature of at least one of the batteries 111 and 112 .
  • the control module 117 can obtain the temperature of at least one of the batteries 111 and 112 and determine whether the temperature is higher than the threshold temperature; if not higher than the threshold temperature, perform steps 4, 5, and 5 again. 7 and step 8 to quickly charge and discharge batteries 111 and 112.
  • Step 11 After the temperature of at least one of the batteries 111 and 112 reaches the threshold temperature, heating can be stopped. Specifically, after the switches V11 to V16 and V21 to V26 of the three-phase power converters 113 and 123 are turned off under the control of the control module 117, the switches K116 and K126 can be turned off to complete the self-heating process. In this way, after the battery heating step is completed, the electrical connection related to the neutral point can be disconnected and the power converter control related to the battery heating can be ended, so that the electrical device can enter the normal operating mode.
  • Step 12 After completing the self-heating process, you can turn on the charging mode.
  • the switches K117, K118, K211, and K212 can be closed to charge the battery 111 using the power module 210 of the charging pile.
  • the current path at this time is: the positive terminal of the power module 210 ⁇ the positive terminal of the battery 111 ⁇ the negative terminal of the battery 111 ⁇ the negative terminal of the power module 210.
  • the switches K127, K128, K221, and K222 can be closed to charge the battery 121 using the power module 210 of the charging pile. In this way, after completing the self-heating process, the electrical device can enter the conventional working mode of charging using a charging pile.
  • Step 13 After completing the charging process, you can enter the standby mode after charging is completed. As shown in Figure 2, the switches K117, K118, K211, and K212 can be turned off to end the charging of the battery 111; the switches K127, K128, K221, and K222 can be turned off to end the charging of the battery 121.
  • FIG. 2 shows a situation where a single electric device 1 and a single electric device 2 perform battery self-heating through a charging pile
  • the system 200 may include more electric devices to charge and discharge the battery together.
  • the present application provides a device for battery heating arranged on an electrical device 1, including: an interface electrically coupled to the neutral point of the motor winding of the electrical device 1 116, this interface 116 can be engaged with the interface 126 that is electrically coupled to the neutral point of the motor winding of the electrical device 2; the interface 115 that is electrically coupled to the negative pole of the battery 111 of the electrical device 1, this interface 115 can be electrically coupled with The interface 125 of the negative pole of the battery of the electrical device 2 is engaged; and the control module 117 is coupled to the control systems of the electrical device 1 and the electrical device 2 to coordinately control the electrical device 1 and the electrical device 2, and Configured to perform the battery heating step.
  • the battery heating step may include a step of charging the battery 112 using the battery 111 and a step of charging the battery 111 using the battery 112 .
  • the device may also include a switch K116, and the control module 117 determines whether the self-heating condition is met before performing the battery heating step, and if so, closes the switch K116.
  • the device may further include a precharge circuit 114, and the control module 117 utilizes the precharge circuit 114 to precharge the capacitor before performing the battery heating step.
  • the present application provides a device for battery heating arranged at a charging pile, including: a switch K231 coupled in series between the charging gun 231 and the charging gun 232 of the charging pile. and K232, wherein the charging gun 231 can be coupled with the charging socket 118 of the electrical device 1, the charging socket 118 is electrically coupled to the neutral point of the motor winding of the electrical device 1, and the charging gun 232 can be coupled with the charging socket of the electrical device 2 128 is engaged, the charging socket 128 is electrically coupled to the neutral point of the motor winding of the electrical device 2; and the control module 220 is coupled to the control systems of the electrical device 1 and the electrical device 2 to coordinately control the electrical devices. 1.
  • the electrical device 2 and the charging pile are configured to perform the battery heating step.
  • the battery heating step may include the step of charging the battery 112 of the electric device 2 using the battery 111 of the electric device 1 and the step of using the battery 112 to charge the battery 111 .
  • the electrical device 1 may also include a switch K116, the electrical device 2 may further include a switch K126, and the control module 220 determines whether the self-heating condition is met before performing the battery heating step, and if so, closes the switches K116 and K126.
  • the electric device 1 may further include a precharge circuit 114, the electric device 2 may further include a precharge circuit 124, and the control module 220 utilizes the precharge circuits 114 and 124 to precharge the capacitor before performing the battery heating step.
  • the device may also include switches K211, K212, K221 and K222, and the control module 220 determines whether the battery temperatures of the electrical device 1 and the electrical device 2 meet predetermined conditions. If so, the switch of the three-phase power converter is turned off and the Open the switches K116 and K126, and close the switches K211, K212, K221, and K222 to charge the electrical device 1 and the electrical device 2 through the charging pile using the charging pile power module 210.
  • the electric device 1 may also include switches K117 and K118, the electric device 2 may also include switches K127 and K128, and the control module 220 will disconnect the switches K117, K118, K127 and K128 when the battery temperature does not meet the self-heating condition, And when charging the electric device 1 and the electric device 2 through the charging pile, the switches K117, K118, K127 and K128 are closed.
  • the present application provides a method for battery heating performed at an electrical device or a charging pile, including: electrically coupling a negative electrode of a battery of the electrical device 1 The interface is connected to a third interface that is electrically coupled to the negative pole of the battery of the electrical consumer 2; a second interface that is electrically coupled to the neutral point of the three-phase motor winding of the electrical consumer 1 is connected to a fourth interface of the neutral point of the three-phase motor winding; and performing a battery heating step to utilize the battery of the electrical device 1 to charge the battery of the electrical device 2 and to utilize the battery of the electrical device 2 to charge the electrical device 1 The battery is charged.
  • the method also includes precharging the capacitor before performing the battery heating step; determining whether the battery temperatures of the electrical device 1 and the electrical device 2 meet predetermined conditions; and determining whether the parameters of the electrical device 1 and the electrical device 2 satisfy self-heating. condition.
  • FIG. 1 what is shown in Figure 1 is the situation where the electric device 1 is a rescue vehicle and the electric device 2 is a vehicle being rescued, but the application is not limited to this and can be applied when the electric device 1 is a rescued vehicle.
  • the vehicle and the electric device 2 are rescue vehicles, and the electric device 1 and the electric device 2 are both normal vehicles.
  • connection between the electrical device and the electrical device is realized through the coupling of the multi-phase synthesized neutral point of each motor, thereby reducing the current of each phase inductor through the parallel shunting of the multi-phase motor winding inductance, and the current of each phase inductor can be Based on the relatively limited inductance of each phase of the motor and the current range of the power converter switch, the total current flowing through the battery is increased, the Joule heating power is increased, and rapid heating is achieved; the switch of the power converter can be used with no phase difference between the three phases.
  • the control method is simple, and the effective value of the heating current is greatly improved. Therefore, the technical solution of the present application effectively improves the heating efficiency without having to replace the switching device with a switching device with a larger current carrying capacity, and can quickly solve the problem of battery heating at low temperatures. Moreover, the device and method according to the present application will not cause adverse effects on the motor and reduce the noise and vibration of the motor. In addition, the device and method according to the present application do not require extensive modification of existing devices, and can be easily implemented on the architecture of existing electrical devices and charging piles by simply adding some switches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

本申请实施例提供一种用于电池加热的装置和方法。装置被布置于第一用电装置，并且包括：电耦合到所述第一用电装置的电机绕组的中性点的第一接口；电耦合到所述第一用电装置的电池的负极的第二接口；以及控制模块，所述控制模块耦合到所述第一用电装置和第二用电装置的控制系统以协调控制所述第一用电装置和所述第二用电装置；其中：所述第一接口被配置为可与电耦合到所述第二用电装置的电机绕组的中性点的第三接口接合；所述第二接口被配置为可与电耦合到所述第二用电装置的电池的负极的第四接口接合；以及所述控制模块被配置为执行电池加热步骤。

Description

用于电池加热的装置和方法 技术领域
本申请涉及电池技术领域，特别是涉及一种用于电池加热的装置和方法。
背景技术
由于具有能量密度高、可循环充电、安全环保等优点，电池被广泛应用于交通工具、消费电子、储能系统等领域中。
发明内容
本申请提供了一种用于电池加热的装置和方法，能够通过电池充放电解决电池在低温情况下的自加热问题。
根据本申请的第一方面，提供了一种用于电池加热的装置，所述装置被布置于第一用电装置，并且包括：电耦合到所述第一用电装置的电机绕组的中性点的第一接口；电耦合到所述第一用电装置的电池的负极的第二接口；以及控制模块，所述控制模块耦合到所述第一用电装置和第二用电装置的控制系统以协调控制所述第一用电装置和所述第二用电装置；其中：所述第一接口被配置为可与电耦合到所述第二用电装置的电机绕组的中性点的第三接口接合；所述第二接口被配置为可与电耦合到所述第二用电装置的电池的负极的第四接口接合；以及所述控制模块被配置为执行电池加热步骤。
根据本申请的第二方面，提供了一种用于电池加热的装置，所述装置被布置于充电桩，并且包括：第一开关，所述第一开关串联耦合在所述充电桩的第一充电枪和第二充电枪之间，其中，所述第一充电枪被配置为 可与第一用电装置的第一充电插座接合，所述第一充电插座电耦合到所述第一用电装置的电机绕组的中性点，所述第二充电枪被配置为可与第二用电装置的第二充电插座接合，所述第二充电插座电耦合到所述第二用电装置的电机绕组的中性点；以及控制模块，所述控制模块耦合到所述第一用电装置和所述第二用电装置的控制系统以协调控制所述第一用电装置、所述第二用电装置和所述充电桩；其中：所述第一开关被配置为闭合以将所述第一用电装置的电机绕组的中性点电耦合到第二用电装置的电耦合到所述第二用电装置的电机绕组的中性点；所述控制模块被配置为执行电池加热步骤。
根据本申请的第三方面，提供了一种用于电池加热的方法，所述方法在用电装置或充电桩处执行，并且包括：将电耦合到第一用电装置的电机绕组的中性点的第一接口接合到电耦合到第二用电装置的电机绕组的中性点的第三接口；将电耦合到所述第一用电装置的电池的负极的第二接口接合到电耦合到所述第二用电装置的电池的负极的第四接口；以及执行电池加热步骤。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例公开的一种用于电池加热的系统的至少一部分的结构示意图；
图2是本申请一实施例公开的一种用于电池加热的系统的结构示意图；
图3是本申请一实施例公开的一种用于电池加热的方法的流程图；
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，还需要说明的是，当部件被称为“连接”、“耦合”或“接合”到另一个部件时，它可以直接连接、耦合或接合到该另一个部件，或者可以存在中间部件。相反，当部件被称为“直接连接”、“直接耦合”或“直接接合”到另一个部件时，可以不存在中间部件。被用于描述要素之间的关系的其它词汇(例如，“在……之间”与“直接在……之间”等)应以类似的方式解释。
除非另有明确的规定和限定，否则单数形式“一个”、“一”和“该”意在也包括复数形式。应进一步理解的是，术语“包括”“包含”、“含有”和/或“具有”当在本文中使用时规定所陈述的特征、操作、要素和/或部件的存在，但不排除一个或多个其它特征、操作、元件、部件和/或其组的存在或添加。
电池一般需要在合适的工作温度范围内运行，低温环境会对电池的正常使用造成不良影响。例如，在低温环境下，电池容量会严重衰退，并且无法进行正常的充放电。因此，为了能够正常使用电池，需要在低温环境下对电池进行加热。
一些用电装置(诸如，电动汽车)的电气系统往往除了电池之外还 包括利用电池中存储的电能的诸如电机之类的装置以及利用电池为电机供电的诸如功率变换器之类的控制装置。因此，在需要在用电装置的原有部件的基础上对该用电装置中的电池进行加热的情况下，需要避免对这些原有部件进行过大的改动或造成损伤。例如，在用电装置采取多相系统(诸如，采取三相电机和三相功率变换器)的情况下，对于电池加热问题，现有技术往往是通过控制用电装置中的电机采用0转矩的方式进行对电池进行加热，该方式加热速率低，并且由于电机各相之间不平衡，会造成电机的振动和噪声问题，可能带来电气和机械损伤。
因此，在对电池进行加热的过程中，应考虑各相之间的平衡，从而避免例如由于相间不平衡而带来电机的振动和噪声问题，从而对电机造成机械和电气损伤。
基于以上考虑，发明人提出了一种用于电池加热的系统以及方法，通过将用电装置的电机的多相绕组的中性点引出，使得电机的多相绕组等效并联，从而提高流过用电装置的电池的电流以实现快速加热，并且确保电池加热期间用电装置的多相平衡；此外，将多个用电装置的电机的多相绕组的中性点接合，从而使得这些用电装置的电池能够相互充放电，提高加热效率。
本申请实施例中的用电装置可以是纯电动汽车、混合动力汽车、电瓶车等等，但不限于此，而是可以是包括多相电机并且利用电池供电的任何用电装置。
根据本申请的装置和方法的应用场景可以包括救援车对因低温电池而无法启动的一个或多个车辆进行救助、充电桩上两车或更多车辆之间通过充电桩实现低温速热后充电等。
图1是本申请一实施例公开的一种用于电池加热的系统100的至少一部分的结构示意图。该系统100适用于两用电装置之间直接进行电池加热的情况。如图1所示的系统100包括用电装置1和用电装置2。作为非限制性示例，用电装置1可以是救援车辆，用电装置2可以是由于低温而需要进行电池加热的被救援车辆。用电装置1包括电池111、电机112以及耦合在电池111和电机112之间的三相功率变换器113；用电装置2包 括电池121、电机122以及耦合在电池121和电机122之间的三相功率变换器123。图1中所示的电机112和122为具有三相绕组的三相电机，但应理解的是本本申请的实施例不限于此，电机112和122可以为三相电机、六相电机、九相电机等等，电机112和122的电机绕组相应地具有三相电感、六相电感、九相电感等等。图1中所示的三相功率变换器113和123的拓扑为常规的AC/DC变换器的拓扑，其包括分别用于三相的三个并联耦合的桥臂，其中每个桥臂包括串联耦合的上桥臂开关和下桥臂开关。以图1中的三相功率变换器113为例，其包括第一相的上桥臂开关V11和下桥臂开关V14、第二相的上桥臂开关V12和下桥臂开关V15以及第三相的上桥臂开关V13和下桥臂开关V16，并且包括与开关V11并联耦合的续流二极管D11、与开关V12并联耦合的续流二极管D12、与开关V13并联耦合的续流二极管D13、与开关V14并联耦合的续流二极管D14、与开关V15并联耦合的续流二极管D15以及与开关V16并联耦合的续流二极管D16。但应理解的是，也可以采取其他变换器拓扑。这些开关可以采取金属氧化物半导体场效应晶体管(Metal-OxideSemiconductor Field-Effect Transistor，MOSFET)、绝缘栅双极型晶体管(Insulated Gate Bipolar Transistor，IGBT)等功率开关器件中的一种或多种。
如图1所示，系统100可以包括用电装置1的电耦合到电机112的绕组的中性点的接口116和电耦合到电池111的负极的接口115，以及用电装置2的电耦合到电机122的绕组的中性点的接口126和电耦合到电池121的负极的接口125，其中，接口116可与接口126接合并且接口115可与接口125接合，以将用电装置1和用电装置2电耦合在一起。此外，系统100还可以包括布置于用电装置1中的控制模块117，该控制模块117耦合到用电装置1和用电装置2的控制系统，用于对用电装置1和用电装置2中的功率变换器和其他开关进行协调控制。虽然未图示，但类似地，控制模块也可以被布置于用电装置2。
在根据本申请的实施例中，系统100可以包括串联耦合在电机112的绕组的中性点和接口116之间的开关K116。此外，系统100可以包括串联耦合在电机122的绕组的中性点和接口126之间的开关K126。
在根据本申请的实施例中，用电装置1可以包括耦合在电池111和功率变换器113之间的预充电电路114，该预充电电路114包括串联耦合在电池111的正极和与功率变换器113的输入端并联耦合的电容器C11的正端之间的开关K113、串联耦合在电池111的负极和电容器C11的负端之间的开关K115、以及与电阻器串联耦合之后并联耦合到K115两端的开关K114。类似地，用电装置2可以包括耦合在电池121和功率变换器123之间的预充电电路124，该预充电电路124包括串联耦合在电池121的正极和与功率变换器123的输入端并联耦合的电容器C12的正端之间的开关K123、串联耦合在电池121的负极和电容器C12的负端之间的开关K125、以及与电阻器串联耦合之后并联耦合到K125两端的开关K124。应理解的是，在根据本申请的实施例中，参见图2，替代地，K113可以串联耦合在电池111的负极和电容器C11的负端之间，K115可以串联耦合在电池111的正极和电容器C11的正端之间，以及K123可以串联耦合在电池121的负极和电容器C12的负端之间，K125可以串联耦合在电池121的正极和电容器C12的正端之间。
图2是本申请一实施例公开的一种用于电池加热的系统200的结构示意图。该系统200适用于两个用电装置之间通过充电桩进行电池加热的情况。图2的结构中的与图1类似的部件在此不再详述。
如图2所示，系统200可以包括布置于充电桩的控制模块220，该控制模块220耦合到用电装置1和用电装置2的控制系统，用于对用电装置1和用电装置2中的功率变换器和其他开关以及充电桩进行协调控制。
代替图1中所示的用于用电装置之间电耦合的接口，用电装置1可以包括与充电桩的充电枪231接合的充电插座118，用电装置2可以包括与充电桩的充电枪232接合的充电插座128。系统200可以包括串联耦合在充电枪231和232之间的开关K231，具体而言，该开关K231串联耦合在充电枪231的正端子和充电枪232的正端子之间。在根据本申请的实施例中，系统200还可以包括耦合在充电枪231和232之间的开关K232，具体而言，该开关K232串联耦合在充电枪231的负端子和充电枪232的负端子之间。
在根据本申请的实施例中，系统200还可以包括串联耦合在充电桩的充电枪231和功率模块210之间的开关K211和K212，其中，K211串联耦合在充电枪231的正端子和功率模块210的一个正端子之间，K212串联耦合在充电枪231的负端子和功率模块210的负端子之间。在根据本申请的实施例中，系统200还可以包括串联耦合在充电桩的充电枪232和功率模块210之间的开关K221和K222，其中，K221串联耦合在充电枪232的正端子和功率模块210的另一个正端子之间，K222串联耦合在充电枪232的负端子和功率模块210的另一个负端子之间。应理解的是，系统200也可以包括开关K211、K212、K221、K222中的一个或多个而非全部。
在根据本申请的实施例中，用电装置1还可以包括将电池111并联耦合到充电插座118的开关K117和K118，其中，K117串联耦合在电容器C1的正端和充电插座118的正端子之间，K118串联耦合在电容器C1的负端和充电插座118的负端子之间。类似的，用电装置2还可以包括将电池121并联耦合到充电插座128的开关K127和K128，其中，K127串联耦合在电容器C1的正端和充电插座118的正端子之间，K128串联耦合在电容器C1的负端和充电插座118的负端子之间。应理解的是，也可以包括开关K117、K118、K127、K128中的一个或多个而非全部。
图3是本申请一实施例公开的一种用于电池加热的方法300的流程图。该方法300可以在用电装置处执行(在如图1所示的系统100中)，也可以在充电桩处执行(在如图2所示的系统200中)。
如图3所示，在步骤S31处，可以将电耦合到第一用电装置的电池的负极的第一接口接合到电耦合到第二用电装置的电池的负极的第三接口；在步骤S32处，可以将电耦合到第一用电装置的电机绕组的中性点的第二接口接合到电耦合到第二用电装置的电机绕组的中性点的第四接口；以及在步骤S33处，可以执行电池加热步骤以对第一充电装置和/或第二充电装置的电池进行加热。应理解的是，步骤S31和步骤S32可以是以所图示的顺序执行，可以是同时执行的，也可以以与图示相反的顺序执行。
在根据本申请的实施例中，电池加热步骤可以包括利用第一用电装置的电池对第二用电装置的电池进行充电。具体而言，利用第一用电装置 的电池对第二用电装置的电池可以包括闭合第一用电装置的三相功率变换器的上桥臂的开关且断开第一用电装置的三相功率变换器的下桥臂的开关，以及断开第二用电装置的三相功率变换器的上桥臂的开关且闭合第二用电装置的三相功率变换器的下桥臂的开关，以利用第一用电装置的电池的放电对第一用电装置和第二用电装置的电机绕组进行电感充电，以及闭合第二用电装置的三相功率变换器的上桥臂的开关且断开第二用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对第二用电装置的电池进行充电。
在根据本申请的实施例中，电池加热步骤还可以包括利用第二用电装置的电池对第一用电装置的电池进行充电。具体而言，利用第二用电装置的电池对第一用电装置的电池进行充电可以包括断开第一用电装置的三相功率变换器的上桥臂的开关且闭合第一用电装置的三相功率变换器的下桥臂的开关，以及闭合第二用电装置的三相功率变换器的上桥臂的开关且断开第二用电装置的三相功率变换器的下桥臂的开关，以利用第二用电装置的电池的放电对第一用电装置和第二用电装置的电机绕组进行电感充电，以及闭合第一用电装置的三相功率变换器的上桥臂的开关且断开第一用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对第一用电装置的电池进行充电。
在根据本申请的实施例中，在执行电池加热步骤之前，还可以利用预充电电路及控制模块执行预充电步骤。
在根据本申请的实施例中，在执行电池加热步骤之前，还可以获取第一用电装置和第二用电装置中的至少一个的电池的参数，并判断所述参数是否满足自加热条件。如果满足，则闭合串联耦合在第一用电装置的中性点和第一接口之间的第一开关以及串联耦合在第二用电装置的中性点和第三接口之间的第二开关。
在根据本申请的实施例中，还可以获取第一用电装置和第二用电装置中的至少一个的电池的温度，并判断温度是否满足预定条件。如果不满足预定条件，则重复执行利用第一用电装置的电池对第二用电装置的电池进行充电的步骤和利用第二用电装置的电池对第一用电装置的电池进行充 电的步骤中的至少一者，直到满足预定条件为止。
以下结合图1描述两用电装置之间直接进行电池加热的方法。
步骤1：用电装置1和用电装置2可以通过接口115与125、接口116与126相互接合，并且在接合之后，作为救援车的用电装置1可以获取作为被救援车的用电装置2的电池121的参数，诸如但不限于电池包温度、荷电状态(State of Charge，SOC)、电压信号等中的一种或多种。
步骤2：控制模块117可以根据电池121的参数判断是否满足自加热条件。作为非限制性示例，自加热条件可以包括电池包温度是否低于预定温度、SOC是否高于预定SOC、电压幅值是否高于预定电压幅值等。若满足自加热条件，则可以开启自加热模式，交互两用电装置信息。如图1所示，可以在控制模块117的控制下闭合开关K116和K126。若不满足自加热条件，则后续无操作。在根据本申请的实施例中，对于作为救援车的用电装置1的电池111可以同样进行判断，并且在电池111和电池121中的至少一个电池的参数满足自加热条件的情况下，开启自加热模式。以这种方式，能够在执行电池加热步骤之前确保救援车具有救援能力以及被救援车具有被救援的必要。
步骤3：在电池加热步骤之前，可以基于预充电电路114对并联在三相功率变换器113的输入端的电容器C11进行预充电。如图1所示，可以在控制模块117的控制下闭合开关K113和K114，从而利用电池111对电容器C11进行预充电，并且待预充电完成后，可以闭合开关K115，然后断开开关K114。在根据本申请的实施例中，类似地，可以利用电池121基于预充电电路124对并联在三相功率变换器123的输入端的电容器C12进行预充电。如图1所示，可以在控制模块117的控制下闭合开关K123和K124，从而利用电池121对电容器C12进行预充电，并且待预充电完成后，可以闭合开关K125，然后断开开关K124。以这种方式，能够确保三相功率变换器的直流母线电容器能够正常工作，从而便于执行电池加热步骤。
步骤4：可以利用电池111的放电对电机112和122的电感进行充电。具体而言，可以在控制模块117的控制下闭合三相功率变换器113的上桥臂的开关V11、V12、V13并断开三相功率变换器113的下桥臂的开关 V14、V15、V16，以及断开三相功率变换器123的上桥臂的开关V21、V22、V23并闭合三相功率变换器123的下桥臂的开关V24、V25、V26，以利用电池111的放电对电机112和122的绕组进行电感充电。此时的电流路径为：电池111的正极→三相功率变换器113的上桥臂V11、V12、V13→电机112的绕组的电感→电机122的绕组的电感→三相功率变换器123的下桥臂V24、V25、V26→电池111的负极。
在本申请中，三相功率变换器113的开关V11至V16和三相功率变换器123的开关V21至V26的闭合和断开可以通过施加在这些开关的控制端(诸如，MOSFET和IGBT的栅极等)的控制信号来实现。在常规的AC/DC三相功率变换器的控制中，各相的开关的控制信号之间存在相位差，以确保与其耦合的电机的正常运行。然而，在本申请中进行无相位差的控制，具体而言，在三相功率变换器113中，分属于三相的上桥臂开关V11、V12、V13的控制信号之间无相位差，使得三个开关V11、V12、V13同时闭合或断开，分属于三相的下桥臂开关V14、V15、V16的控制信号之间无相位差，使得三个开关V14、V15、V16同时闭合或断开。在三相功率变换器123中，分属于三相的上桥臂开关V21、V22、V23的控制信号之间无相位差，使得三个开关V21、V22、V23同时闭合或断开，分属于三相的下桥臂开关V24、V25、V26的控制信号之间无相位差，使得三个开关V24、V25、V26同时闭合或断开。并且，还可以有利地采取方波控制信号，以获取尽可能大的加热电流有效值。
步骤5：待电感充电完成后，可以对电池121进行充电。具体而言，可以在控制模块117的控制下断开三相功率变换器123的下桥臂的开关V24、V25、V26，然后闭合三相功率变换器123的上桥臂的开关V21、V22、V23，以通过电机112和122的电感对电池121进行充电。此时的电流路径为：电池111的正极→三相功率变换器113的上桥臂V11、V12、V13→电机112的绕组的电感→电机122的绕组的电感→三相功率变换器123的上桥臂V21、V22、V23→电池121的正极→电池121的负极→电池111的负极。
步骤6：可以在控制模块117的控制下重复步骤4和步骤5，即，利用电池111多次对电池121进行充电，直到满足预定条件为止。作为非限 制性示例，预定条件可以是预定充电次数。作为非限制性示例，预定条件可以是电池121的阈值温度。在这种情况下，控制模块117可以获取电池121的温度，并且判断该温度是否高于阈值温度；如果不高于阈值温度，则再次执行步骤4和步骤5，以利用电池111快速地对电池121进行充电。以这种方式，能够确保将电池加热到期望的阈值温度，从而使得电池能够正常工作。
在本申请中，作为非限制性示例，阈值温度可以是预设的电池能够正常工作的温度下限，诸如，对于锂离子电池，阈值温度可以为0℃或更高。作为非限制性示例，阈值温度也可以是由用户设定的温度值。
步骤7：在对电池121的充电之后，可以利用电池121的放电对电机112和122的电感进行充电。具体而言，在完成电池121的快速充电后，可以在控制模块117的控制下断开三相功率变换器113的上桥臂的开关V11、V12、V13并闭合三相功率变换器113的下桥臂的开关V14、V15、V16，以及闭合三相功率变换器123的上桥臂的开关V21、V22、V23并断开三相功率变换器123的下桥臂的开关V24、V25、V26，以利用电池121的放电对电机112和122的绕组进行电感充电。此时的电流路径为：电池121的正极→三相功率变换器123的上桥臂V21、V22、V23→电机122的绕组的电感→电机112的绕组的电感→三相功率变换器113的下桥臂V14、V15、V16→电池121的负极。
步骤8：待电感充电完成后，可以对电池111进行充电。具体而言，可以在控制模块117的控制下断开三相功率变换器113的下桥臂的开关V14、V15、V16，然后闭合三相功率变换器113的上桥臂的开关V11、V12、V13，以通过电机112和122的电感对电池111进行充电。此时的电流路径为：电池121的正极→三相功率变换器123的上桥臂V21、V22、V23→电机122的绕组的电感→电机112的绕组的电感→三相功率变换器113的上桥臂V11、V12、V13→电池111的正极→电池111的负极→电池121的负极。
步骤9：可以在控制模块117的控制下重复步骤7和步骤8，即，利用电池111多次对电池121进行放电，直到满足预定条件为止。作为非限制性示例，预定条件可以是预定放电次数。作为非限制性示例，预定条件 可以是电池121的阈值温度。在这种情况下，控制模块117可以获取电池121的温度，并且判断该温度是否高于阈值温度；如果不高于阈值温度，则再次执行步骤7和步骤8，以利用电池111快速地对电池121进行放电。
应理解的是，电池加热步骤可以仅包括利用电池111对电池121进行充电的步骤4和步骤5，也可以还包括利用电池121对电池111进行充电(即，电池121的放电)的步骤7和步骤8。在电池的充电及放电的过程中，电流将流过电池并通过电池的内阻的焦耳热效应而产生大量热量。在本申请中，一方面，由于引出电机绕组电感的中性点并且三相功率变换器的上桥臂的开关和下桥臂的开关的三相间无相位差的控制，电机绕组电感并联，从而电机的等效阻抗相对减小，大大提高了流过电池的电流；另一方面，电池在低温下具有内阻较大的特性。因此通过电池加热步骤，能够快速地进行电池的自加热。
步骤10：可以在控制模块117的控制下重复步骤4、步骤5、步骤7和步骤8，即，利用电池111多次对电池121进行充放电循环，直到满足预定条件为止。作为非限制性示例，预定条件可以是电池121的阈值温度。在这种情况下，控制模块117可以获取电池121的温度，并且判断该温度是否高于阈值温度；如果不高于阈值温度，则再次执行步骤4、步骤5、步骤7和步骤8，以利用电池111快速地对电池121进行充放电。
步骤11：待电池121的温度达到阈值温度后，可以停止加热。具体而言，可以在控制模块117的控制下断开三相功率变换器113、123的开关V11至V16以及V21至V26后，断开开关K116和K126，完成自加热过程。以这种方式，能够在结束电池加热步骤之后，断开与中性点相关的电连接，并结束与电池加热相关的功率变换器控制，从而用电装置能够进入常规工作模式。
应理解的是，以上所述的各步骤可以是可选的而非必要的。
此外，虽然图1中示出了单个救援车辆用电装置1与单个被救援车用电装置2之间通过充放电进行电池自加热的情况，但是用电装置1和用电装置2可以包括多个被救援车，即，多个用电装置2可以并联接合到救援车多个用电装置1，并且多个用电装置1可以与多个用电装置2一起进 行电池的充放电。
以下结合图2描述两用电装置之间通过充电桩进行电池加热的方法。
步骤1：通过将充电桩的充电枪231和232分别接合到用电装置1的充电插座118和用电装置2的充电插座128，用电装置1和用电装置2可以接合到充电桩，从而控制模块210可以获取电池111和112中的至少一个电池的参数，诸如但不限于电池包温度、SOC、电压信号等中的一种或多种。
步骤2：控制模块210可以根据电池111和112中的至少一个电池的参数判断是否满足自加热条件。作为非限制性示例，自加热条件可以包括电池包温度是否低于预定温度、SOC是否高于预定SOC、电压幅值是否高于预定电压幅值等。若满足自加热条件，则可以开启自加热模式。如图2所示，可以在控制模块210的控制下闭合开关K231和K232，以将用电装置1与用电装置2耦合以进行电池的自加热。若不满足自加热条件，则可以跳转到步骤12进行充电。
步骤3：在电池加热步骤之前，可以基于预充电电路进行预充电，具体过程参考前文所述，在此不再详述。
步骤4：可以利用电池111的放电对电机112和122的电感进行充电，具体过程参考前文所述，在此不再详述。
步骤5：待电感充电完成后，可以对电池121进行充电，具体过程参考前文所述，在此不再详述。
步骤6：可以在控制模块117的控制下重复步骤4和步骤5，具体过程参考前文所述，在此不再详述。
步骤7：在对电池121的充电之后，可以利用电池121的放电对电机112和122的电感进行充电，具体过程参考前文所述，在此不再详述。
步骤8：待电感充电完成后，可以对电池111进行充电，具体过程参考前文所述，在此不再详述。
步骤9：可以在控制模块117的控制下重复步骤7和步骤8，具体过程参考前文所述，在此不再详述。
步骤10：可以在控制模块117的控制下重复步骤4、步骤5、步骤7 和步骤8，直到满足预定条件为止。作为非限制性示例，预定条件可以是电池111和112中的至少一个电池的阈值温度。在这种情况下，控制模块117可以获取电池111和112中的至少一个电池的温度，并且判断该温度是否高于阈值温度；如果不高于阈值温度，则再次执行步骤4、步骤5、步骤7和步骤8，以快速进行电池111和112的充放电。
步骤11：待电池111和112中的至少一个电池的温度达到阈值温度后，可以停止加热。具体而言，可以在控制模块117的控制下断开三相功率变换器113、123的开关V11至V16以及V21至V26后，断开开关K116和K126，完成自加热过程。以这种方式，能够在结束电池加热步骤之后，断开与中性点相关的电连接，并结束与电池加热相关的功率变换器控制，从而用电装置能够进入常规工作模式。
步骤12：在完成自加热过程后，可以开启充电模式。如图2所示，可以闭合开关K117、K118、K211、K212，以利用充电桩的功率模块210给电池111进行充电。此时的电流路径为：功率模块210的正端子→电池111的正极→电池111的负极→功率模块210的负端子。类似地，可以闭合开关K127、K128、K221、K222，以利用充电桩的功率模块210给电池121进行充电。以这种方式，在完成自加热过程之后，用电装置能够进入常规的利用充电桩进行充电的工作模式。
步骤13：在完成充电过程后，可以进入充电完成后的待机模式。如图2所示，可以断开开关K117、K118、K211、K212，以结束电池111的充电；可以断开开关K127、K128、K221、K222，以结束电池121的充电。
应理解的是，以上所述的各步骤可以是可选的而非必要的。
此外，虽然图2中示出了单个用电装置1与单个用电装置2之间通过充电桩进行电池自加热的情况，但是系统200可以包括更多个用电装置一起进行电池的充放电。
根据本申请的一些实施例，参见图1，本申请提供了一种布置于用电装置1的用于电池加热的装置，包括：电耦合到用电装置1的电机绕组的中性点的接口116，该接口116可与电耦合到用电装置2的电机绕组的中性点的接口126接合；电耦合到用电装置1的电池111的负极的接口 115，该接口115可与电耦合到用电装置2的电池的负极的接口125接合；以及控制模块117，该控制模块117耦合到用电装置1和用电装置2的控制系统以协调控制用电装置1和用电装置2，并且被配置为执行电池加热步骤。电池加热步骤可以包括利用电池111对电池112进行充电的步骤以及利用电池112对电池111进行充电的步骤。该装置还可以包括开关K116,并且控制模块117在执行电池加热步骤之前判断是否满足自加热条件，若满足则闭合该开关K116。该装置还可以包括预充电电路114，并且控制模块117在执行电池加热步骤之前利用预充电电路114进行电容预充电。
根据本申请的一些实施例，参见图2，本申请提供了一种布置于充电桩的用于电池加热的装置，包括：串联耦合在充电桩的充电枪231和充电枪232之间的开关K231和K232，其中，充电枪231可与用电装置1的充电插座118接合，充电插座118电耦合到用电装置1的电机绕组的中性点，充电枪232可与用电装置2的充电插座128接合，充电插座128电耦合到用电装置2的电机绕组的中性点；以及控制模块220，该控制模块220耦合到用电装置1和用电装置2的控制系统以协调控制用电装置1、用电装置2和充电桩，并且被配置为执行电池加热步骤。电池加热步骤可以包括利用用电装置1的电池111对用电装置2的电池112进行充电的步骤以及利用电池112对电池111进行充电的步骤。用电装置1还可以包括开关K116,用电装置2还可以包括开关K126，并且控制模块220在执行电池加热步骤之前判断是否满足自加热条件，若满足则闭合该开关K116和K126。用电装置1还可以包括预充电电路114,用电装置2还可以包括预充电电路124，并且控制模块220在执行电池加热步骤之前利用预充电电路114和124进行电容预充电。该装置还可以包括开关K211、K212、K221和K222，并且控制模块220判断用电装置1和用电装置2的电池温度是否满足预定条件，如满足则断开三相功率变换器的开关并断开开关K116和K126，并且闭合开关K211、K212、K221和K222以通过充电桩利用充电桩功率模块210对用电装置1和用电装置2进行充电。用电装置1还可以包括开关K117和K118,用电装置2还可以包括开关K127和K128，并且控制模块220在电池温度不满足自加热条件的情况下断开开关K117、K118、K127和K128， 并且在通过充电桩对用电装置1和用电装置2充电的情况下闭合开关K117、K118、K127和K128。
根据本申请的一些实施例，参见图3，本申请提供了一种在用电装置或充电桩处执行的用于电池加热的方法，包括：将电耦合到用电装置1的电池的负极的接口接合到电耦合到用电装置2的电池的负极的第三接口；将电耦合到用电装置1的三相电机绕组的中性点的第二接口接合到电耦合到用电装置2的三相电机绕组的中性点的第四接口；以及执行电池加热步骤，以利用用电装置1的电池对用电装置2的电池进行充电和利用用电装置2的电池对用电装置1的电池进行充电。该方法还包括在执行电池加热步骤之前进行电容预充电；判断用电装置1和用电装置2的电池温度是否满足预定条件；以及判断用电装置1和用电装置2的参数是否满足自加热条件。
应理解的是，图1中示出的是用电装置1是救援车辆并且用电装置2是被救援车辆的情况，但本申请不限于此，而是可以适用于用电装置1是被救援车辆并且用电装置2是救援车辆以及用电装置1和用电装置2均为正常车辆等情况。
应理解的是，图1中示出了电机和三相功率变换器的情况，但本申请不限于此，而是可以适用于其他的多相电机和相应的功率变换器，诸如六相电机和相应的功率变换器、九相电机和相应的功率变换器等。
在本申请中，经由各电机多相合成的中性点的耦接来实现用电装置与用电装置之间连接，从而通过多相电机绕组电感并联分流降低每相电感的电流，并且可以在相对受限的电机每相电感和功率变换器开关的电流范围的基础上提高流过电池的总电流，提高焦耳热功率，实现快速加热；功率变换器的开关可以采用三相之间无相位差的方波信号控制，与采取高频的三角波或脉宽调制(Pulse Width Modulation，PWM)波作为控制信号的常规方案相比，控制方法简单，并且加热电流的有效值大大提高。因此，本申请的技术方案在不必将开关器件替换为具有更大的载流能力的开关器件的情况下有效提高了加热效率，能够快速解决低温下的电池加热问题。并且，根据本申请的装置和方法不会对电机造成不良影响，降低电机的噪 声和振动。此外，根据本申请的装置和方法无需对现有装置进行大量改造，仅需增加一些开关即可容易地在现有的用电装置和充电桩的架构上实现。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (40)

  1. 一种用于电池加热的装置，所述装置被布置于第一用电装置，并且包括：
    电耦合到所述第一用电装置的电机绕组的中性点的第一接口；
    电耦合到所述第一用电装置的电池的负极的第二接口；以及
    控制模块，所述控制模块耦合到所述第一用电装置和第二用电装置的控制系统以协调控制所述第一用电装置和所述第二用电装置；
    其中：
    所述第一接口被配置为可与电耦合到所述第二用电装置的电机绕组的中性点的第三接口接合；
    所述第二接口被配置为可与电耦合到所述第二用电装置的电池的负极的第四接口接合；以及
    所述控制模块被配置为执行电池加热步骤。
  2. 根据权利要求1所述的装置，其中，所述电池加热步骤包括利用第一用电装置的电池对第二用电装置的电池进行充电。
  3. 根据权利要求2所述的装置，其中，利用第一用电装置的电池对第二用电装置的电池进行充电包括：
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以及断开所述第二用电装置的三相功率变换器的上桥臂的开关且闭合所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第一用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所 述第二用电装置的电池进行充电。
  4. 根据权利要求2所述的装置，其中，所述电池加热步骤还包括利用第二用电装置的电池对第一用电装置的电池进行充电。
  5. 根据权利要求4所述的装置，其中，利用第二用电装置的电池对第一用电装置的电池进行充电包括：
    断开所述第一用电装置的三相功率变换器的上桥臂的开关且闭合所述第一用电装置的三相功率变换器的下桥臂的开关，以及闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第二用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所述第一用电装置的电池进行充电。
  6. 根据权利要求4所述的装置，还包括串联耦合在所述第一用电装置的中性点和所述第一接口之间的第一开关，其中，所述控制模块还被配置为在执行所述电池加热步骤之前：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的参数，
    判断所述参数是否满足自加热条件，
    如果满足所述自加热条件，则闭合所述第一开关以及串联耦合在所述第二用电装置的中性点和所述第三接口之间的第二开关。
  7. 根据权利要求6所述的装置，其中，所述第一用电装置和所述第二用电装置还包括预充电电路，所述预充电电路包括串联耦合在电池的正极和负极中的一极以及与三相功率变换器的输入端并联耦合的电容器的一端之间的第三开关、串联耦合在电池的正极和负极中的另一极以及所述电容 器的另一端之间的第四开关、以及在与电阻器串联耦合之后并联耦合到所述第四开关两端的第五开关；以及
    所述控制模块还被配置为在执行所述电池加热步骤之前执行预充电步骤，所述预充电步骤包括：
    闭合所述第三开关和所述第五开关，以进行电容器预充电，以及
    在完成电容器预充电之后，闭合所述第四开关，然后断开所述第五开关。
  8. 根据权利要求6所述的装置，其中，所述控制模块还被配置为：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的温度，
    判断所述温度是否满足预定条件，
    如果不满足所述预定条件，则重复执行所述利用第一用电装置的电池对第二用电装置的电池进行充电的步骤和所述利用第二用电装置的电池对第一用电装置的电池进行充电的步骤中的至少一者，直到满足所述预定条件为止。
  9. 根据权利要求8所述的装置，其中，所述控制模块还被配置为：在满足所述预定条件之后，断开所述第一用电装置和所述第二用电装置的三相功率变换器的所有开关，然后断开所述第一开关和所述第二开关。
  10. 根据权利要求6所述的装置，其中，所述参数包括电池的温度、荷电状态、电压中的至少一种。
  11. 根据权利要求1所述的装置，其中，所述第一用电装置和所述第二用电装置分别为一个或多个电动车辆。
  12. 根据权利要求6所述的装置，其中，所述自加热条件包括以下中的一项或多项：
    电池包温度低于预定温度，
    SOC高于预定SOC，
    电压幅值高于预定电压幅值。
  13. 一种用于电池加热的装置，所述装置被布置于充电桩，并且包括：
    第一开关，所述第一开关串联耦合在所述充电桩的第一充电枪和第二充电枪之间，其中，所述第一充电枪被配置为可与第一用电装置的第一充电插座接合，所述第一充电插座电耦合到所述第一用电装置的电机绕组的中性点，所述第二充电枪被配置为可与第二用电装置的第二充电插座接合，所述第二充电插座电耦合到所述第二用电装置的电机绕组的中性点；以及
    控制模块，所述控制模块耦合到所述第一用电装置和所述第二用电装置的控制系统以协调控制所述第一用电装置、所述第二用电装置和所述充电桩；
    其中：
    所述第一开关被配置为闭合以将所述第一用电装置的电机绕组的中性点电耦合到第二用电装置的电耦合到所述第二用电装置的电机绕组的中性点；以及
    所述控制模块被配置为执行电池加热步骤。
  14. 根据权利要求13所述的装置，其中，所述电池加热步骤包括利用第一用电装置的电池对第二用电装置的电池进行充电。
  15. 根据权利要求14所述的装置，其中，利用第一用电装置的电池对第二用电装置的电池进行充电包括：
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以及断开所述第二用电装置的三相功率变换器的上桥臂的开关且闭合所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第一用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所述第二用电装置的电池进行充电。
  16. 根据权利要求14所述的装置，其中，所述电池加热步骤还包括利用第二用电装置的电池对第一用电装置的电池进行充电。
  17. 根据权利要求16所述的装置，其中，利用第二用电装置的电池对第一用电装置的电池进行充电包括：
    断开所述第一用电装置的三相功率变换器的上桥臂的开关且闭合所述第一用电装置的三相功率变换器的下桥臂的开关，以及闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第二用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所述第一用电装置的电池进行充电。
  18. 根据权利要求16所述的装置，其中，所述第一用电装置还包括串联耦合在所述第一用电装置的中性点和所述第一充电插座之间的第二开关，以及所述第二用电装置还包括串联耦合在所述第二用电装置的中性点和所述第二充电插座之间的第三开关，其中，所述控制模块还被配置为在执行所述电池加热步骤之前：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的参数，
    判断所述参数是否满足自加热条件，
    如果满足所述自加热条件，则闭合所述第二开关和所述第三开关。
  19. 根据权利要求18所述的装置，其中，所述第一用电装置和所述第 二用电装置还包括预充电电路，所述预充电电路包括串联耦合在电池的正极和负极中的一极以及与三相功率变换器的输入端并联耦合的电容器的一端之间的第四开关、串联耦合在电池的正极和负极中的另一极以及所述电容器的另一端之间的第五开关、以及在与电阻器串联耦合之后并联耦合到所述第五开关两端的第六开关；以及
    所述控制模块还被配置为在执行所述电池加热步骤之前执行预充电步骤，所述预充电步骤包括：
    闭合所述第四开关和所述第六开关，以进行电容器预充电，以及
    在完成电容器预充电之后，闭合所述第五开关，然后断开所述第六开关。
  20. 根据权利要求18所述的装置，其中，所述控制模块还被配置为：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的温度，
    判断所述温度是否满足预定条件，
    如果不满足所述预定条件，则重复执行所述利用第一用电装置的电池对第二用电装置的电池进行充电的步骤和所述利用第二用电装置的电池对第一用电装置的电池进行充电的步骤中的至少一者，直到满足所述预定条件为止。
  21. 根据权利要求20所述的装置，其中，所述充电桩还包括串联耦合在第一充电枪和所述充电桩的功率模块之间的第七开关以及串联耦合在第二充电枪和所述充电桩的功率模块之间的第八开关；以及
    所述控制模块还被配置为：
    在满足所述预定条件的情况下，断开所述第一用电装置和所述第二用电装置的三相功率变换器的所有开关，然后断开所述第二开关和所述第三开关，以及
    闭合所述第七开关和所述第八开关中的至少一个开关，以对所述第一用电装置和所述第二用电装置中的至少一个进行充电。
  22. 根据权利要求21所述的装置，其中，所述参数包括电池的温度、荷电状态、电压中的至少一种。
  23. 根据权利要求14或16所述的装置，还包括第九开关，所述第九开关串联耦合在所述充电桩的第一充电枪和第二充电枪之间以将所述第一用电装置的电池的负极电耦合到所述第二用电装置的电池的负极，其中，所述第一充电枪还被配置为可与所述第一充电插座接合以电耦合到所述第一用电装置的电池的负极，所述第二充电枪还被配置为可与所述第二充电插座接合以电耦合到所述第二用电装置的电池的负极；以及
    所述控制模块还被配置为在闭合所述第一开关时闭合所述第九开关，并且在断开所述第一开关时断开所述第九开关。
  24. 根据权利要求21所述的装置，其中，所述第一用电装置还包括将所述第一用电装置的电池并联耦合到所述第一充电插座的第十开关，并且所述第二用电装置还包括将所述第二用电装置的电池的正极并联耦合到所述第二充电插座的第十一开关；以及
    所述控制模块还被配置为：
    在满足所述自加热条件的情况下，断开所述第十开关和所述第十一开关，以及
    在利用所述充电桩对所述第一用电装置和所述第二用电装置中的至少一个进行充电时，闭合所述第十开关和所述第十一开关中的对应的开关。
  25. 根据权利要求13所述的装置，其中，所述第一用电装置和所述第二用电装置分别为一个或多个电动车辆。
  26. 根据权利要求18所述的装置，其中，所述自加热条件包括以下中的一项或多项：
    电池包温度低于预定温度，
    SOC高于预定SOC，
    电压幅值高于预定电压幅值。
  27. 一种用于电池加热的方法，所述方法在用电装置或充电桩处执行，并且包括：
    将电耦合到第一用电装置的电池的负极的第一接口接合到电耦合到第二用电装置的电池的负极的第三接口；
    将电耦合到所述第一用电装置的电机绕组的中性点的第二接口接合到电耦合到所述第二用电装置的电机绕组的中性点的第四接口；以及
    执行电池加热步骤。
  28. 根据权利要求27所述的方法，其中，所述电池加热步骤包括利用第一用电装置的电池对第二用电装置的电池进行充电。
  29. 根据权利要求28所述的方法，其中利用第一用电装置的电池对第二用电装置的电池进行充电包括：
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以及断开所述第二用电装置的三相功率变换器的上桥臂的开关且闭合所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第一用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所述第二用电装置的电池进行充电。
  30. 根据权利要求28所述的方法，其中，所述电池加热步骤还包括利用第二用电装置的电池对第一用电装置的电池进行充电。
  31. 根据权利要求30所述的方法，其中，利用第二用电装置的电池对 第一用电装置的电池进行充电包括：
    断开所述第一用电装置的三相功率变换器的上桥臂的开关且闭合所述第一用电装置的三相功率变换器的下桥臂的开关，以及闭合所述第二用电装置的三相功率变换器的上桥臂的开关且断开所述第二用电装置的三相功率变换器的下桥臂的开关，以利用所述第二用电装置的电池的放电对所述第一用电装置和所述第二用电装置的电机绕组进行电感充电，以及
    闭合所述第一用电装置的三相功率变换器的上桥臂的开关且断开所述第一用电装置的三相功率变换器的下桥臂的开关，以在电感充电之后对所述第一用电装置的电池进行充电。
  32. 根据权利要求28所述的方法，还包括在执行所述电池加热步骤之前：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的参数，
    判断所述参数是否满足自加热条件，
    如果满足所述自加热条件，则闭合串联耦合在所述第一用电装置的中性点和所述第一接口之间的第一开关以及串联耦合在所述第二用电装置的中性点和所述第三接口之间的第二开关。
  33. 根据权利要求32所述的方法，其中，所述第一用电装置和所述第二用电装置还包括预充电电路，所述预充电电路包括串联耦合在电池的正极和负极中的一极以及与三相功率变换器的输入端并联耦合的电容器的一端之间的第三开关、串联耦合在电池的正极和负极中的另一极以及所述电容器的另一端之间的第四开关、以及在与电阻器串联耦合之后并联耦合到所述第四开关两端的第五开关；以及
    所述方法还包括在执行所述电池加热步骤之前执行预充电步骤，所述预充电步骤包括：
    闭合所述第三开关和所述第五开关，以进行电容器预充电；以及
    在完成电容器预充电之后，闭合所述第四开关，然后断开所述第五开关。
  34. 根据权利要求32所述的方法，还包括：
    获取所述第一用电装置和所述第二用电装置中的至少一个的电池的温度，
    判断所述温度是否满足预定条件，
    如果不满足所述预定条件，则重复执行所述利用第一用电装置的电池对第二用电装置的电池进行充电的步骤和所述利用第二用电装置的电池对第一用电装置的电池进行充电的步骤中的至少一者，直到满足所述预定条件为止。
  35. 根据权利要求34所述的方法，还包括：在满足所述预定条件之后，断开所述第一用电装置和所述第二用电装置的三相功率变换器的所有开关，然后断开所述第一开关和所述第二开关。
  36. 根据权利要求35所述的方法，其中，在所述方法在充电桩处执行的情况下，所述充电桩包括串联耦合在可与所述第一接口和所述第二接口接合的第一充电枪和所述充电桩的功率模块之间的第六开关以及串联耦合在可与所述第三接口和所述第四接口接合的第二充电枪和所述充电桩的功率模块之间的第七开关，并且：
    所述方法还包括：
    在满足所述自加热条件的情况下，断开所述第六开关和所述第七开关，以及
    闭合所述第六开关和所述第七开关中的至少一个开关，以利用所述充电桩对所述第一用电装置和所述第二用电装置中的至少一个进行充电。
  37. 根据权利要求32所述的方法，其中，所述参数包括电池的温度、 荷电状态、电压中的至少一种。
  38. 根据权利要求32所述的方法，其中，在所述方法在充电桩处执行的情况下，所述第一用电装置还包括将所述第一用电装置的电池的两极分别电耦合到所述第一接口和所述第二接口的第八开关，并且所述第二用电装置还包括将所述第二用电装置的电池的两极分别电耦合到所述第三接口和所述第四接口的第九开关；以及
    所述方法还包括：
    在满足所述自加热条件的情况下，断开所述第八开关和所述第九开关，以及
    在利用所述充电桩对所述第一用电装置和所述第二用电装置中的至少一个进行充电时，闭合所述第八开关和所述第九开关中的对应的开关。
  39. 根据权利要求27所述的方法，其中，所述第一用电装置和所述第二用电装置分别为一个多个车辆。
  40. 根据权利要求32所述的方法，其中，所述自加热条件包括以下中的一项或多项：
    电池包温度低于预定温度，
    SOC高于预定SOC，
    电压幅值高于预定电压幅值。
PCT/CN2022/088411 2022-04-22 2022-04-22 用于电池加热的装置和方法 Ceased WO2023201687A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP22937923.5A EP4404335A4 (en) 2022-04-22 2022-04-22 DEVICES AND METHODS FOR BATTERY HEATING
JP2024518941A JP7567103B1 (ja) 2022-04-22 2022-04-22 電池加熱用装置及び方法
KR1020247008671A KR102718024B1 (ko) 2022-04-22 2022-04-22 배터리 가열용 장치 및 방법
CN202280004070.7A CN115769417B (zh) 2022-04-22 2022-04-22 用于电池加热的装置和方法
PCT/CN2022/088411 WO2023201687A1 (zh) 2022-04-22 2022-04-22 用于电池加热的装置和方法
US18/625,899 US12288856B2 (en) 2022-04-22 2024-04-03 Device and method for heating a battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/088411 WO2023201687A1 (zh) 2022-04-22 2022-04-22 用于电池加热的装置和方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/625,899 Continuation US12288856B2 (en) 2022-04-22 2024-04-03 Device and method for heating a battery

Publications (1)

Publication Number Publication Date
WO2023201687A1 true WO2023201687A1 (zh) 2023-10-26

Family

ID=85348454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/088411 Ceased WO2023201687A1 (zh) 2022-04-22 2022-04-22 用于电池加热的装置和方法

Country Status (6)

Country Link
US (1) US12288856B2 (zh)
EP (1) EP4404335A4 (zh)
JP (1) JP7567103B1 (zh)
KR (1) KR102718024B1 (zh)
CN (1) CN115769417B (zh)
WO (1) WO2023201687A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008167619A (ja) * 2007-01-04 2008-07-17 Toyota Motor Corp 電源装置およびそれを備える車両
CN101238018A (zh) * 2005-08-08 2008-08-06 丰田自动车株式会社 车辆用电源装置以及控制该装置的方法
JP2010022141A (ja) * 2008-07-11 2010-01-28 Toyota Motor Corp 電力制御装置
CN111391719A (zh) * 2020-06-04 2020-07-10 比亚迪股份有限公司 能量转换装置及车辆
CN111660875A (zh) * 2020-06-04 2020-09-15 比亚迪股份有限公司 车辆、能量转换装置及其控制方法
US20210061128A1 (en) * 2019-08-30 2021-03-04 Hyundai Motor Company System and method for increasing temperature of battery using motor driving system
CN113085516A (zh) * 2021-04-30 2021-07-09 重庆长安新能源汽车科技有限公司 一种电动汽车的动力电池脉冲加热系统及加热方法

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4539431B2 (ja) * 2005-05-11 2010-09-08 トヨタ自動車株式会社 電源制御装置
JP4208016B2 (ja) 2007-02-13 2009-01-14 トヨタ自動車株式会社 ハイブリッド車両、ハイブリッド車両の制御方法、ハイブリッド車両の制御プログラムおよびそのプログラムを記録した記録媒体
US7956563B2 (en) 2007-07-30 2011-06-07 GM Global Technology Operations LLC System for using a multi-phase motor with a double-ended inverter system
US8102142B2 (en) 2007-07-30 2012-01-24 GM Global Technology Operations LLC Double ended inverter system for a vehicle having two energy sources that exhibit different operating characteristics
US9139100B2 (en) * 2011-06-09 2015-09-22 Toyota Jidosha Kabushiki Kaisha Vehicle power supply apparatus
JP5784553B2 (ja) 2012-07-10 2015-09-24 株式会社日本自動車部品総合研究所 電力変換装置
JP6026952B2 (ja) 2013-05-17 2016-11-16 株式会社日本自動車部品総合研究所 電力変換装置
JP6285290B2 (ja) 2014-06-17 2018-02-28 株式会社Ｓｏｋｅｎ 電力変換装置
JP6401090B2 (ja) 2015-03-23 2018-10-03 株式会社Ｓｏｋｅｎ 電力変換装置
US20190001833A1 (en) * 2016-08-31 2019-01-03 Faraday&Future Inc. Method and system for vehicle-to-vehicle charging
US11532946B2 (en) * 2017-11-30 2022-12-20 The Board Of Trustees Of The University Of Alabama Power electronics charge coupler for vehicle-to-vehicle fast energy sharing
JP6901414B2 (ja) * 2018-01-19 2021-07-14 トヨタ自動車株式会社 二次電池システムおよびそれを備えた車両ならびにバッテリの制御方法
CN108666713B (zh) * 2018-05-22 2020-05-05 宁德时代新能源科技股份有限公司 用于双车加热的电池组加热装置与控制方法
CN110224651B (zh) 2019-05-05 2020-10-16 浙江大学 一种抑制二次谐波转矩的缺相控制方法
JP7249220B2 (ja) 2019-07-04 2023-03-30 株式会社Soken 電力変換装置
KR102613207B1 (ko) * 2019-07-12 2023-12-14 현대자동차주식회사 차대차 충전 케이블 및 그 제어방법
CN112297893B (zh) * 2019-07-31 2022-07-15 比亚迪股份有限公司 放电车辆和车辆充电系统
KR102789573B1 (ko) * 2019-08-30 2025-04-01 현대자동차주식회사 모터 구동 시스템을 이용한 충전 시스템 및 방법
JP7169952B2 (ja) 2019-09-11 2022-11-11 株式会社Soken 電力変換装置
CN112644340B (zh) 2019-09-25 2022-10-18 比亚迪股份有限公司 能量转换装置及车辆
CN112550022B (zh) 2019-09-25 2022-04-15 比亚迪股份有限公司 能量转换装置及车辆
US20220402390A1 (en) * 2019-11-14 2022-12-22 Invertedpower Pty Ltd A multimodal converter for interfacing with multiple energy sources
CN111525196B (zh) * 2020-04-21 2022-09-02 深圳威迈斯新能源股份有限公司 电池自加热电路、采用该电路的电动汽车及其控制方法
JP7276244B2 (ja) 2020-05-12 2023-05-18 株式会社デンソー 多相回転機の制御装置
CN113733986A (zh) * 2020-05-29 2021-12-03 比亚迪股份有限公司 电池自加热装置及其控制方法和车辆
CN113752911B (zh) * 2020-06-04 2023-06-13 比亚迪股份有限公司 能量处理装置、方法及车辆
CN113752908B (zh) * 2020-06-04 2023-12-12 比亚迪股份有限公司 车辆、能量转换装置及其控制方法
KR102797069B1 (ko) * 2020-06-05 2025-04-18 현대자동차주식회사 차량 및 차량의 제어방법
CN114074561B (zh) * 2020-08-20 2023-07-11 比亚迪股份有限公司 能量转换装置及其运行方法、电动汽车
US11603005B2 (en) * 2020-09-30 2023-03-14 GM Global Technology Operations LLC Apparatus and method of quick charging an electric vehicle
US11607967B2 (en) * 2021-03-22 2023-03-21 GM Global Technology Operations LLC Vehicle electrical system having a power inverter and an electric motor for stepping up voltage
US11728732B2 (en) * 2021-03-22 2023-08-15 GM Global Technology Operations LLC Electrical system having buck converter functionality
CN113085659B (zh) * 2021-04-30 2022-05-31 重庆长安新能源汽车科技有限公司 一种电动汽车、动力电池脉冲加热系统及加热方法
CN113022344B (zh) * 2021-04-30 2022-05-31 重庆长安新能源汽车科技有限公司 一种基于双电机的动力电池充电系统及电动汽车

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101238018A (zh) * 2005-08-08 2008-08-06 丰田自动车株式会社 车辆用电源装置以及控制该装置的方法
JP2008167619A (ja) * 2007-01-04 2008-07-17 Toyota Motor Corp 電源装置およびそれを備える車両
JP2010022141A (ja) * 2008-07-11 2010-01-28 Toyota Motor Corp 電力制御装置
US20210061128A1 (en) * 2019-08-30 2021-03-04 Hyundai Motor Company System and method for increasing temperature of battery using motor driving system
CN111391719A (zh) * 2020-06-04 2020-07-10 比亚迪股份有限公司 能量转换装置及车辆
CN111660875A (zh) * 2020-06-04 2020-09-15 比亚迪股份有限公司 车辆、能量转换装置及其控制方法
CN113085516A (zh) * 2021-04-30 2021-07-09 重庆长安新能源汽车科技有限公司 一种电动汽车的动力电池脉冲加热系统及加热方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4404335A4 *

Also Published As

Publication number Publication date
JP2024538868A (ja) 2024-10-24
EP4404335A1 (en) 2024-07-24
KR20240038830A (ko) 2024-03-25
CN115769417A (zh) 2023-03-07
US12288856B2 (en) 2025-04-29
CN115769417B (zh) 2026-02-13
KR102718024B1 (ko) 2024-10-16
EP4404335A4 (en) 2025-01-22
US20240250332A1 (en) 2024-07-25
JP7567103B1 (ja) 2024-10-16

Similar Documents

Publication Publication Date Title
CN103213543B (zh) 一种电动车行车控制系统
CN201966300U (zh) 一种电池的加热电路
CN108312878B (zh) 一种车载复用充电机
WO2021000740A1 (zh) 能量转换装置、动力系统及车辆
CN212579628U (zh) 能量转换装置及车辆
WO2016152366A1 (ja) 電力変換装置
CN103213508A (zh) 一种电动车行车控制系统
CN115416495B (zh) 一种用于驱动电机的控制器及其相关设备
CN109874385A (zh) 电力转换系统
WO2023087331A1 (zh) 充放电电路、系统及其控制方法
CN110601525B (zh) 新能源汽车集成车载充电变换系统
JP7838125B2 (ja) 単段三ポート磁気集積トポロジ、車載充電機、及びその制御方法
CN113394996A (zh) Ac-dc谐振变换电路及其控制方法
US20250046906A1 (en) Battery self-heating device and method, and vehicle
CN114590173A (zh) 电池能量处理装置及其控制方法、车辆
CN214112341U (zh) 电池能量处理装置及车辆
CN209666872U (zh) 车载充电机及车辆
WO2023206410A1 (zh) 电池的加热系统的控制方法和加热系统
EP3039778A1 (en) Dc-dc converter for battery system with wide operating voltage range
CN206790354U (zh) 高频隔离串联谐振多电平双向充电装置
WO2023201687A1 (zh) 用于电池加热的装置和方法
CN112440768B (zh) 充电控制方法、充电控制模块及其存储介质
CN107888077A (zh) 一种双向直流‑直流变换器及其控制方法
CN111376759B (zh) 车载充电机及车辆
CN217778411U (zh) 电池自加热装置及电动交通工具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22937923

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20247008671

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2024518941

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2022937923

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022937923

Country of ref document: EP

Effective date: 20240417

NENP Non-entry into the national phase

Ref country code: DE