WO2017179158A1 - 電池モジュール - Google Patents
電池モジュール Download PDFInfo
- Publication number
- WO2017179158A1 WO2017179158A1 PCT/JP2016/061933 JP2016061933W WO2017179158A1 WO 2017179158 A1 WO2017179158 A1 WO 2017179158A1 JP 2016061933 W JP2016061933 W JP 2016061933W WO 2017179158 A1 WO2017179158 A1 WO 2017179158A1
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- power supply
- battery
- level
- circuit
- voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/53—Batteries
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- 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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- 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
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- 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
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/08—Three-wire DC power distribution systems; Systems having more than three wires
- H02J1/082—DC supplies with two or more different DC voltage levels
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- 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
- H02J1/00—Circuit arrangements for DC mains or DC distribution networks
- H02J1/10—Parallel operation of DC sources
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- 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
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- 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
- H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
- H02J7/663—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits
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- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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
- H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
- H02J2105/30—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles
- H02J2105/33—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles exchanging power with road vehicles
- H02J2105/37—Networks for supplying or distributing electric power characterised by their spatial reach or by the load the load networks being external to vehicles, i.e. exchanging power with vehicles exchanging power with road vehicles exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
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- 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
- H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- 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
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Definitions
- Embodiments of the present invention relate to a battery module.
- the battery module includes, for example, a storage battery, a control circuit that controls the operation of the battery module, and a circuit breaker that is provided in an output line from the storage battery and switches between conduction and interruption of the output line.
- the control circuit operates with power from a power source (external power source) mounted on a device on which the battery module is mounted, and controls the operation of the storage battery and the circuit breaker.
- the power supply from the vehicle may become unstable due to the operation of the vehicle. For example, when a power supply line or a communication line from the vehicle is disconnected, power is not supplied to the control circuit of the battery module. In addition, when the vehicle starts suddenly, the power supply to the control circuit of the battery module may stop instantaneously.
- the circuit breaker When the circuit breaker is a relay or a contactor that is turned on by passing a current, the circuit breaker is not turned on unless it is always energized, and the current consumption increases. Furthermore, when the circuit breaker is a relay or a contactor that is turned on by passing a current, the power supply from the external power supply instantaneously stops, so that the circuit breaker is opened (insulated). Therefore, a battery module having a capacity for holding the potential of the control signal to the circuit module breaker has been proposed.
- the control circuit opens the circuit breaker when the power supply from the external power supply to the battery module control circuit stops. In the worst case, an accident such as a short circuit could occur.
- Embodiments of the present invention have been made in view of the above circumstances, and an object thereof is to provide a battery module that ensures safety when an external power supply is stopped.
- the battery module includes a battery, a circuit breaker that switches electrical connection of an output line from the battery to the outside, an internal power supply voltage supplied from the battery, and an external power supply voltage supplied from an external power supply.
- a power supply switching circuit for receiving a start signal from the outside and switching a power supply for supplying a power supply voltage from the external power supply to the battery when at least one of the external power supply voltage and the start signal is at a second level;
- a control circuit that controls the operation of the circuit breaker and the power supply switching circuit using a power supply voltage output from the power supply switching circuit as a power supply.
- FIG. 1 is a block diagram for explaining a configuration example of the battery module of the embodiment.
- Drawing 2 is a figure explaining an example of the composition of the power supply switching circuit of the battery module of an embodiment.
- FIG. 3 is a state transition diagram illustrating an example of operations of the control circuit and the power supply switching circuit of the battery module according to the embodiment.
- FIG. 1 is a block diagram for explaining a configuration example of the battery module of the embodiment.
- the battery module 10 of the present embodiment is a DC load that is electrically connected to the vehicle load 30 and the lead battery 20 that is an external power source.
- the battery module 10 is mounted on, for example, an electric vehicle, and the vehicle load 30 includes an inverter and a motor (AC load) not shown.
- the inverter converts, for example, a direct current supplied from the battery module 10 into an alternating current and supplies it to the motor, and converts a regenerative current from the motor into a direct current and supplies it to the battery module 10. It is a phase AC inverter.
- the motor is driven by an alternating current supplied from an inverter.
- the power generated by the rotation of the motor is transmitted to the wheels via an axle (not shown).
- the lead battery 20 supplies the battery module 10 with the power supply voltage VEXT and the start signal IG_in.
- the power supply voltage VEXT is a signal from the lead battery 20 always connected to the battery module 10, and the activation signal IG_in is controlled by a host control device (not shown) that controls the devices mounted on the electric vehicle to synchronize. This is a signal to be supplied.
- the start signal IG_in may be the same power supply (signal) as the power supply voltage VEXT and the start signal IG_in.
- the battery module 10 of the present embodiment includes a battery BT, a power supply switching circuit 12, a control circuit (CPU) 16, and a circuit breaker 14.
- the battery BT includes a plurality of secondary battery cells (not shown).
- the battery BT outputs the voltage VLIB to the outside through the circuit breaker 14 that switches the electrical connection of the main circuit that is an output line from the battery BT to the outside. Further, the output voltage (internal power supply voltage) VLIB of the battery BT is configured to be supplied to the power supply switching circuit 12.
- the circuit breaker 14 is a switching means for electrically switching the connection of the main circuit.
- the circuit breaker 14 may be, for example, a relay or a contactor that conducts when a current flows, or may be a latching relay that controls conduction and insulation with a one-shot pulse.
- the operation of the circuit breaker 14 is controlled by the voltage VINT supplied from the power supply switching circuit 12.
- the control circuit 16 is a calculation means including a processor and a memory such as a CPU (central processing unit) or an MPU (micro processing unit).
- the control circuit 16 is supplied with a voltage of 5 V as a power supply voltage from the power supply switching circuit 12.
- the control circuit 16 determines the presence / absence of power (voltage VEXT) supplied from the outside based on the signal IG_PWR_ON supplied from the power switching circuit 12 and switches the control signal LIB_SD to the power switching circuit 12.
- the control circuit 16 includes counting means for counting the time during which the signal IG_PWR_ON is at the L level.
- the power supply switching circuit 12 supplies a power supply voltage (5 V) to the control circuit 16 and also supplies a voltage VINT to the circuit breaker 14, and based on an activation signal IG_in from the outside, supplies power to the vehicle load 30 from the battery module Switch between supply and stop.
- the power supply switching circuit 12 is supplied with the output voltage VLIB of the battery BT and the voltage VEXT supplied from the outside of the battery module 10 (lead battery 20).
- the power supply switching circuit 12 autonomously changes the power supply source to the control circuit 16 from the external power supply to the internal power supply, regardless of the control of the control circuit 16. It is configured to be switchable. Thus, even when the power supply from the external power supply is stopped, the operation of the control circuit 16 can be continued, and the battery module 10 can be stopped safely.
- the power supply switching circuit 12 includes a plurality of switching elements TR1a to TR6, a rectifying element, a resistor, a regulator Reg, and a capacitor 12C.
- the plurality of switching elements TR1a to TR6 for example, transistors such as IGBT (Insulated Gate Bipolar transistor) and MOSFET (Metal Oxide semiconductor FET) can be used.
- the switching elements TR1a and TR1b are, for example, IGBTs (Insulated Gate Bipolar transistors), and the switching elements TR2 to TR6 are, for example, MOSFETs (Metal oxide oxide semiconductor FETs).
- the emitter of the switching element TR1a is grounded, and the collector of the switching element TR1a is electrically connected to the emitter of the switching element TR1b.
- An activation signal IG_in is applied to the base of the switching element TR1a through a constant voltage diode having a threshold value of 2V.
- the emitter and base of the switching element TR1a are electrically connected via a resistor.
- the threshold value of the diode connected to the base of the switching element TR1a is not limited to 2V, and the threshold value may be variable. Further, the diode may be omitted.
- the switching element TR1b is connected in series with the switching element TR1a.
- the emitter of the switching element TR1b is electrically connected to the collector of the switching element TR1a.
- the collector of the switching element TR1b is electrically connected to the bases of the switching elements TR2 to TR4 via a resistor.
- the switching element TR1b is connected in parallel with a diode whose forward direction is from the emitter to the collector.
- a voltage VEXT is applied to the base of the switching element TR1b via a constant voltage diode having a threshold value of 6V.
- the emitter and base of the switching element TR1b are electrically connected via a resistor.
- the threshold value of the diode connected to the base of the switching element TR1b is not limited to 6V, and the threshold value may be variable. Further, the diode may be omitted.
- the emitter of switching element TR2 is electrically connected to the output terminal of voltage VINT, and the collector of switching element TR2 is electrically connected to the input terminal of voltage VEXT via a diode whose input direction to the collector is the forward direction. Connected.
- the base of the switching element TR2 is electrically connected to the collector of the switching element TR1b via a resistor. Between the collector and the base of the switching element TR2, a resistor and a constant voltage diode whose forward direction is from the base to the collector are connected in parallel. A diode whose forward direction is from the emitter to the collector of the switching element TR2 is connected in parallel to the switching element TR2.
- the emitter of the switching element TR3 is grounded, and the collector of the switching element TR3 is electrically connected to the output terminal of the power supply voltage of 5V via a resistor.
- the power supply voltage of 5V is supplied from a regulator Reg described later.
- the base of the switching element TR3 is electrically connected to the collector of the switching element TR1b via a resistor.
- the base and emitter of the switching element TR3 are electrically connected via a resistor.
- the signal IG_PWR_ON input terminal of the control circuit 16 is electrically connected between the collector of the switching element TR3 and the input terminal of the power supply voltage of 5V. That is, the signal IG_PWR_ON becomes H level when both the activation signal IG_in and the external power supply voltage VEXT are supplied (high (H) level), and at least one of the activation signal IG_in and the external power supply voltage VEXT When the supply is stopped (at the low (L) level), the L level is obtained.
- the emitter of the switching element TR4 is electrically connected to the collector of the switching element TR5.
- the collector of the switching element TR4 is electrically connected to the base of the switching element TR6 via a resistor.
- the base of the switching element TR4 is electrically connected to the collector of the switching element TR1b via a resistor.
- a resistor and a constant voltage diode whose forward direction is from the emitter to the base are connected in parallel.
- a diode having a forward direction from the emitter to the collector of the switching element TR4 is connected in parallel to the switching element TR4.
- the emitter of the switching element TR5 is grounded.
- the collector of the switching element TR5 is electrically connected to the emitter of the switching element TR4.
- the base of the switching element TR5 is electrically connected to the output terminal of the control signal LIB_SD through a resistor.
- the emitter and base of the switching element TR5 are electrically connected via a resistor.
- the emitter of switching element TR6 is electrically connected to the output terminal of voltage VINT, and the collector of switching element TR6 is electrically connected to the input terminal of voltage VLIB via a diode whose input direction to the collector is the forward direction. is doing.
- the base of the switching element TR6 is electrically connected to the collector of the switching element TR4 via a resistor. Between the collector and the base of the switching element TR6, a resistor and a constant voltage diode whose forward direction is from the base to the collector are connected in parallel.
- the switching element TR6 is connected in parallel with a diode whose forward direction is from the emitter to the collector of the switching element TR6.
- the regulator Reg is connected between the collector (drain) of the switching element TR6 and the collector (drain) of the switching element TR2, and converts it into a 5V power supply voltage and outputs it.
- the capacitor 12C includes a capacitor that holds the potential across the output terminal of the voltage VINT. When the supply of the power supply voltage VEXT from the outside is stopped by the capacitor 12C, the value of the output voltage VINT is held for a certain period. In the present embodiment, when the power supply voltage VEXT from the external power supply voltage VEXT is stopped, the time required to switch the power supply to the control circuit 16 by the voltage VLIB of the battery BT is within about 1 ms.
- the capacitor 12C is sufficient if it can hold the output voltage VINT for approximately 1 ms. It is desirable that the capacity 12C be appropriately sized depending on the value of the output voltage VINT, the time for holding the output voltage VINT, the configuration of the circuit breaker 14, and the like.
- FIG. 3 is a state transition diagram illustrating an example of operations of the control circuit and the power supply switching circuit of the battery module according to the embodiment.
- the first level of a signal or voltage
- the second level is L level.
- the activation signal IG_in is off (L level)
- the output voltage VINT of the battery module 10 is 0V.
- all the switching elements TR1a to TR6 are turned off.
- the regulator Reg is activated when an H level voltage is supplied, outputs a power supply voltage of 5 V, and is supplied to the control circuit 16 as a power source.
- the control circuit 16 is activated by a power supply voltage of 5V.
- the output voltage VINT becomes H level equal to the external power supply voltage VEXT, and the circuit breaker 14 is connected (turned on).
- the control circuit 16 sets the control signal LIB_SD to the power supply switching circuit 12 to the H level, and the activation process is completed. (ST3)
- the control signal LIB_SD is switched between the H level and the L level by the control circuit 16.
- the control circuit 16 switches the control signal LIB_SD from the H level to the L level, and switches the power supply of the battery module 10 from on to off. That is, the control signal LIB_SD is set to H level by the control circuit 16 when the battery module 10 is activated and performs steady operation.
- the control circuit 16 prepares to supply the output voltage VLIB of the battery BT to the control circuit 16 in advance by setting the control signal LIB_SD to the H level in advance when the voltage VEXT (or the activation signal IG_in) becomes the low level.
- the control signal LIB_SD is set to the L level by the control circuit 16.
- the power supply switching circuit 12 continues the above-described steady operation by the power supply switching circuit 12.
- the power supply from lead battery 20 is stopped.
- the power supply switching circuit 12 supplies power to the control circuit 16 from the lead battery 20 as the external power supply to the battery BT as the internal power supply. Switch to.
- the operation of the power supply switching circuit 12 for switching the power supply to the control circuit 16 from the voltage VEXT from the lead battery 20 to the battery VLIB is caused by the fact that the control signal LIB_SD is H level in advance (control This is carried out autonomously by the power supply switching circuit 12 (regardless of the control of the circuit 16). That is, in the present embodiment, since the power supply source to the control circuit 16 is switched only by the operation of the power switching circuit 12, the time required for switching can be shortened, and the influence on the control circuit 16 (power supply stop etc.) can be reduced. Disappear. Therefore, the control of the battery module 10 can be continued without stopping the control circuit 16. At this time, the control circuit 16 only monitors the presence or absence of power supply from the lead battery 20. When the power supply to the control circuit 16 is switched from the battery BT to the lead battery 20, control by the control circuit 16 is performed.
- the switching element TR2 is turned off, and the switching element TR3 and the switching element TR4 are turned on. Thereby, the switching element TR6 is further turned on.
- the voltage VINT is equal to the internal power supply voltage VLIB, and the voltage VLIB is supplied from the battery BT to the regulator Reg.
- the control circuit 16 starts counting up when the signal IG_PWR_ON becomes the L level, and determines whether or not the period during which the power supply from the lead battery 20 is stopped is equal to or greater than a predetermined threshold value. In the present embodiment, the control circuit 16 determines whether or not the period in which the signal IG_PWR_ON is at the L level, that is, the period in which at least one of the activation signal IG_in and the external power supply voltage VEXT is at the L level is 10 seconds or more. . (ST6)
- the control circuit 16 monitors the signal IG_PWR_ON, and continues to supply power from the battery BT to the control circuit 16 during a period in which the signal IG_PWR_ON is at the L level until a predetermined threshold value elapses. (ST5)
- both the activation signal IG_in and the external power supply voltage VEXT are at H level, and the control circuit 16 switches the control signal LIB_SD to L level.
- the power supply switching circuit 12 switches the power supply for supplying the power supply voltage to the control circuit 16 from the battery BT to the lead battery 20.
- the control signal LIB_SD becomes L level, the power supply from the battery BT to the power supply switching circuit 12 is stopped, but since the voltage VEXT from the lead battery 20 is secured, the output The voltage VINT is held.
- the control signal LIB_SD is at the L level when the battery module 10 is activated.
- control circuit 16 Immediately after the control circuit 16 starts up, the IO port of the control circuit 16 is H-Zi (no signal), so it is at the L level.
- the control circuit 16 sets the control signal LIB_SD to the H level at the start of steady operation, and thereafter maintains the H level until it completely stops or VEXT (IG_in) is secured.
- the control circuit 16 monitors the value of the power supply voltage (or the voltage of the battery BT) during the period when the power supply voltage is supplied from the battery BT, and determines whether or not the voltage of the battery BT is equal to or lower than the discharge end voltage. (ST7)
- the control circuit 16 monitors the signal IG_PWR_ON, and the voltage of the battery BT is discharged when the period during which the signal IG_PWR_ON is at the L level exceeds a predetermined threshold and when the power supply voltage is supplied from the battery BT.
- stop processing is performed (ST8).
- the control circuit 16 starts the stop process of the battery module 10 and turns off the circuit breaker 14. That is, the control circuit 16 sets the control signal LIB_SD to the L level, turns off the switching element TR5, turns off the switching element TR4 and the switching element TR6, stops the regulator Reg, turns off the switching element TR3, and supplies power to the control circuit 16 Stop supplying.
- the supply of the power supply voltage to the control circuit 16 is switched between the external power supply and the internal power supply only by the operation of the power supply switching circuit 12.
- the operation of the control circuit 16 can be continued even when the power supply from the external power supply is stopped.
- circuit breaker 14 when the circuit breaker 14 is a relay or a contactor that is made conductive (turned on) by passing a current, the power supply from the external power supply is momentarily stopped, so that the circuit breaker 14 is opened (insulated). Moreover, since the circuit breaker 14 which conducts by current is not always energized unless it is always energized, the current consumption increases.
- the circuit breaker 14 when the circuit breaker 14 is a latching relay or the like whose conduction and insulation are controlled by a one-shot pulse, the power supply (external power supply) or the control line or communication line on the host device side is turned on ( The circuit breaker 14 becomes uncontrollable while maintaining ON (on) or insulation (OFF). In a state where the circuit breaker 14 is conductive (on), the output terminal of the battery module remains in a live state, which is dangerous.
- the power supply to the control circuit 16 is not stopped, so that the control circuit 16 can control the circuit breaker 14.
- the operation of the battery module 10 can be safely stopped after the circuit breaker 14 is turned off.
- the power supply that supplies the power supply voltage to the control circuit 16 is returned from the internal power supply to the external power supply. You can switch to Thereby, it can suppress that the electric power accumulate
- the control circuit 16 when the control circuit 16 is operated by the internal power supply (VLIB), the voltage of the battery BT is monitored to prevent the battery BT from being overdischarged.
- the discharge voltage becomes equal to or lower than the discharge end voltage, the operation of the battery module 10 can be stopped by itself (ST8), and the output voltage VINT can be stopped (set to zero).
- the first level of the signal is described as H (high) level and the second level is set as L (low) level.
- the present invention is not limited to the above. Depending on the configuration of the power supply switching circuit, the first level may be L level and the second level may be high level.
- SYMBOLS 10 Battery module, 12 ... Power supply switching circuit, 12C ... Capacity, 14 ... Circuit breaker, 16 ... Control circuit, 20 ... Lead battery (external power supply), 30 ... Vehicle load, TR1a-TR6 ... Switching element, BT ... Battery ( Internal power).
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
Description
図1は、実施形態の電池モジュールの一構成例を説明するためのブロック図である。
本実施形態の電池モジュール10は、車両負荷30と、外部電源である鉛電池20と電気的に接続している直流負荷である。本実施形態では、電池モジュール10は、例えば、電動車両に搭載されており、車両負荷30は、図示しないインバータおよびモータ(交流負荷)を備えている。インバータは、例えば、電池モジュール10から供給された直流電流を交流電流に変換してモータへ供給するとともに、モータからの回生電流を直流電流に変換して電池モジュール10へ供給する、双方向の3相交流インバータである。モータは、インバータから供給された交流電流により駆動される。モータの回転による動力は、図示しない車軸を介して車輪へ伝達される。
本実施形態の電池モジュール10は、バッテリBTと、電源切替回路12と、制御回路(CPU)16と、遮断器14と、を備えている。
本実施形態では、電源切替回路12は、外部からの電源供給が停止した場合に、制御回路16の制御によらず、制御回路16への電源供給元を外部電源から内部電源へと自立的に切替え可能に構成されている。このことにより、外部電源からの電源供給が停止した場合であっても制御回路16の動作を継続させることが可能となり、安全に電池モジュール10を停止させることが可能となる。
電源切替回路12は、複数のスイッチング素子TR1a~TR6と、整流素子と、抵抗器と、レギュレータRegと、容量12Cと、を備えている。
容量12Cは、電圧VINTの出力端子の両端の電位を保持するコンデンサを備えている。容量12Cにより、外部からの電源電圧VEXTの供給が停止したときに、出力電圧VINTの値が、一定期間、保持される。本実施形態では、外部からの電源電圧VEXTからの電源電圧VEXTが停止した場合に、バッテリBTの電圧VLIBにより制御回路16へ電源を供給するように切り替えるまでに必要な時間は略1ms以内であるため、容量12Cは出力電圧VINTを略1ms保持するものであれば十分である。なお、容量12Cは、出力電圧VINTの値や出力電圧VINTを保持する時間や遮断器14の構成などにより適切な大きさとすることが望ましい。
図3は、実施形態の電池モジュールの制御回路および電源切替回路の動作の一例を説明する状態遷移図である。なお、以下の説明において、例えば、信号(若しくは電圧)の第1レベルをHレベルとし、第2レベルをLレベルとする。
電池モジュール10が停止している状態(ST1)において、起動信号IG_inはオフ(Lレベル)であり、電池モジュール10の出力電圧VINTは0Vである。このとき全てのスイッチング素子TR1a~TR6はオフされている。
レギュレータRegは、Hレベルの電圧が供給されると起動し、5Vの電源電圧を出力し、制御回路16へ電源として供給される。制御回路16は、5Vの電源電圧により起動する。また、出力電圧VINTは外部電源電圧VEXTと等しくHレベルとなり、遮断器14を接続(オン)する。制御回路16は、電源切替回路12への制御信号LIB_SDをHレベルとして、起動処理が完了する。(ST3)
制御信号LIB_SDがHレベルとなると、電源切替回路12のスイッチング素子TR5がオンされた状態となり、電池モジュール10は、外部電源である鉛電池20から電源を供給された状態で、車両負荷30へバッテリBTの電圧VLIBを出力する定常状態となる。(ST4)上記定常状態において、制御回路16は、電源切替回路12からの信号IG_PWR_ONを所定のタイミングでサンプリングして監視し、鉛電池20からの電源供給の有無を監視する。
起動信号IG_inと外部電源電圧VEXTとの少なくとも一方がLレベル(信号IG_PWR_ONがLレベル)であるときは、鉛電池20からの電源供給が停止している状態である。電源切替回路12は、ST4において、起動信号IG_in又は外部電源電圧VEXTの少なくとも一方がLレベルであるときには、制御回路16への電源供給を外部電源である鉛電池20から、内部電源であるバッテリBTに切替える。
上記のように、本実施形態の電池モジュール10では、電源切替回路12の動作のみにより制御回路16への電源電圧の供給を、外部電源と内部電源とで切替えている。このことにより、外部電源からの電源供給が停止したときにも制御回路16の動作を継続させることができる。
なお、上記実施形態において、信号の第1レベルをH(ハイ)レベルとし、第2レベルをL(ロー)レベルとして説明したが、上記に限定されるものではない。電源切替回路の構成により、第1レベルをLレベルとし第2レベルをハイレベルとしても構わない。
Claims (6)
- バッテリと、
前記バッテリから外部への出力ラインの電気的接続を切替える遮断器と、
前記バッテリから供給される内部電源電圧と、外部電源から供給される外部電源電圧と、外部からの起動信号とを受信し、前記外部電源電圧と前記起動信号との少なくとも一方が第2レベルであるときに、電源電圧を供給する電源を前記外部電源から前記バッテリへ切替える電源切替回路と、
前記電源切替回路から出力される前記電源電圧を電源とし、前記遮断器および前記電源切替回路の動作を制御する制御回路と、を備えた電池モジュール。 - 前記制御回路は、前記外部電源電圧あるいは前記起動信号が第2レベルである期間が所定の閾値を超えたときに、前記遮断器をオフし、前記電源電圧の供給を停止する、請求項1記載の電池モジュール。
- 前記制御回路は、前記外部電源電圧あるいは前記起動信号が第2レベルである期間において、前記バッテリの電圧が放電終止電圧以下となったときに、前記遮断器をオフし、前記電源電圧の供給を停止する、請求項1記載の電池モジュール。
- 前記制御回路は、起動した後に、前記起動信号が第2レベルとなり、かつ、停止命令を受信したときに、前記遮断器をオフし、前記電源電圧の供給を停止する、請求項1記載の電池モジュール。
- 前記電源切替回路は、前記遮断器を切り替える電圧を所定期間保持可能な容量を備えている、請求項1記載の電池モジュール。
- 前記制御回路は、前記外部電源あるいは前記起動信号が第2レベルである期間において、前記外部電源および前記起動信号が第1レベルとなったときに、前記電源切替回路を制御して、前記電源電圧を供給する電源を前記外部電源から前記バッテリへ切替える、請求項1記載の電池モジュール。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16898618.0A EP3444915B1 (en) | 2016-04-13 | 2016-04-13 | Battery module |
| PCT/JP2016/061933 WO2017179158A1 (ja) | 2016-04-13 | 2016-04-13 | 電池モジュール |
| JP2018511824A JP6612972B2 (ja) | 2016-04-13 | 2016-04-13 | 電池モジュール |
| CN201680084557.5A CN109075580B (zh) | 2016-04-13 | 2016-04-13 | 电池模块 |
| US16/157,259 US11190046B2 (en) | 2016-04-13 | 2018-10-11 | Battery module |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2016/061933 WO2017179158A1 (ja) | 2016-04-13 | 2016-04-13 | 電池モジュール |
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| US16/157,259 Continuation US11190046B2 (en) | 2016-04-13 | 2018-10-11 | Battery module |
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| EP (1) | EP3444915B1 (ja) |
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| CN111771316A (zh) * | 2018-01-05 | 2020-10-13 | 路创技术有限责任公司 | 用于电池供电装置的补充电力供应装置 |
| WO2020241046A1 (ja) * | 2019-05-31 | 2020-12-03 | 日立オートモティブシステムズ株式会社 | 電子回路およびセンサシステム |
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| AT523261B1 (de) * | 2019-03-01 | 2021-06-15 | Wacker Neuson Linz Gmbh | Akkumulatorsystem mit einem Leistungsakkumulator für fahrbare Arbeitsmaschinen |
| CN110588549B (zh) * | 2019-09-19 | 2020-10-23 | 北京三快在线科技有限公司 | 车辆的供电系统和车辆 |
| KR20220157181A (ko) * | 2021-05-20 | 2022-11-29 | 삼성에스디아이 주식회사 | 배터리 보호 장치 및 이를 포함하는 배터리 시스템 |
| KR102747509B1 (ko) * | 2022-11-24 | 2024-12-26 | 주식회사 엘지에너지솔루션 | 배터리 제어 장치 및 방법 |
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| CN111771316B (zh) * | 2018-01-05 | 2025-08-01 | 路创技术有限责任公司 | 用于电池供电装置的补充电力供应装置 |
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| US20190044376A1 (en) | 2019-02-07 |
| US11190046B2 (en) | 2021-11-30 |
| EP3444915A1 (en) | 2019-02-20 |
| CN109075580A (zh) | 2018-12-21 |
| JP6612972B2 (ja) | 2019-11-27 |
| EP3444915A4 (en) | 2019-09-04 |
| CN109075580B (zh) | 2022-01-14 |
| EP3444915B1 (en) | 2021-07-07 |
| JPWO2017179158A1 (ja) | 2018-12-06 |
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