WO2024138596A1 - 一种充电检测方法及相关设备 - Google Patents
一种充电检测方法及相关设备 Download PDFInfo
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- WO2024138596A1 WO2024138596A1 PCT/CN2022/143782 CN2022143782W WO2024138596A1 WO 2024138596 A1 WO2024138596 A1 WO 2024138596A1 CN 2022143782 W CN2022143782 W CN 2022143782W WO 2024138596 A1 WO2024138596 A1 WO 2024138596A1
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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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
- 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
-
- 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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- 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
Definitions
- the embodiment of the present application provides a charging detection method for avoiding misidentification and charging stop, solving the problem of reduced charging efficiency and increased power consumption.
- the embodiment of the present application also provides corresponding charging equipment, power supply equipment, vehicles, charging systems, electronic equipment and computer-readable storage media.
- the power supply device initiates insulation detection, the power supply device performs insulation detection on the charging device, the charging device collects the insulation detection voltage of the power supply device, and obtains the insulation detection voltage of the power supply device, that is, the power supply device sends the insulation detection voltage to the charging device, and the charging device uses the maximum value of the collected insulation detection voltages as the insulation detection voltage for subsequent use.
- the charging device in the present application includes a battery, and the power supply device is specifically used to charge the battery in the charging device.
- the battery can specifically be a battery pack or a battery cell.
- the setting of the first threshold value in the present application takes into account the full charging voltage of the battery pack, the rated level specified by the national standard of the charging pile, the detection error and offset, etc.
- the insulation detection voltage output by the charging pile will be lower than the maximum voltage of the charging device (battery pack full charge voltage) or the first threshold value. Therefore, it can only be preliminarily judged that the DC charging pile is a low-voltage charging pile.
- the maximum output voltage of the power supply device is greater than or equal to the full charge voltage of the charging device, it can be determined that the power supply device is a high-voltage charging pile and the first charging mode should be used.
- the maximum output voltage of the power supply device is less than the full charge voltage of the charging device, it can be determined that the power supply device is a low-voltage charging pile and the second charging mode should be used.
- the charging device requests to use the first charging mode for charging includes: the charging device determines whether the power supply device has a reconnection mechanism; if the power supply device has the reconnection mechanism, the charging device re-sends the first message to the power supply device, and the current voltage of the charging device is the actual voltage of the charging device; the charging device receives the second message, and requests the power supply device to use the first charging mode for charging.
- the charging device when the charging device requests direct charging, it needs to be implemented through the reconnection mechanism of the power supply device. That is, when the charging device mistakenly determines to use the boost charging method, the direct charging method can be re-adopted through the reconnection mechanism, which improves the feasibility of the solution.
- the judgment of the reconnection mechanism is specifically implemented by sending the third message, which improves the feasibility of the solution and limits the receiving time of the fourth message, ensuring that the power supply equipment will not be shut down due to a long period of judgment during the charging process, thereby improving the user's charging experience.
- the charging device determines whether the power supply device has a reconnection mechanism includes: when the charging device receives the fifth message within the first preset time period, the charging device determines whether the fourth message sent by the power supply device is received within the first preset time period; the above-mentioned step: if the power supply device has a reconnection mechanism, the charging device re-sends the first message to the power supply device includes: if the charging device receives the fourth message sent by the power supply device within the first preset time period, the charging device re-sends the first message to the power supply device.
- the method further includes: if the power supply device does not have a reconnection mechanism, the charging device requests the power supply device to charge in a second charging mode; if the charging device and the power supply device meet preset conditions, the charging device requests the power supply device to switch to the first charging mode.
- the charging device can still continue to use the boost charging method, and then switch to the direct charging method in the subsequent process to ensure that the charging process is not stopped, thereby improving the user's charging experience.
- the preset conditions include at least one of the following: the number of requests from the charging device to the power supply device to switch to the first charging mode is less than or equal to a second threshold value, the charging device is not in a pre-charging heating state, and the difference between the output voltage of the power supply device and the current voltage of the charging device within the second preset time period is less than or equal to a third threshold value.
- the success rate of switching is increased, thereby improving the user's charging experience.
- the method further includes: the charging device determines whether the switch to the first charging mode is successful; if the switch to the first charging mode fails, the charging device requests the power supply device to maintain the second charging mode.
- the requested voltage adjustment slope is less than or equal to a fourth threshold value, and the requested current adjustment slope is less than or equal to a fifth threshold value.
- a fifth aspect of the present application provides a vehicle, which includes a charging device, and the charging device is used to execute the method of the first aspect or any possible implementation method of the first aspect.
- 1a-1d are schematic diagrams of a charging module of a vehicle
- FIG3 is a schematic diagram of an embodiment of a charging detection method provided in an embodiment of the present application.
- FIG8 is a schematic diagram of an embodiment of a power supply device provided in an embodiment of the present application.
- the embodiment of the present application provides a charging detection method for avoiding misidentification and charging stop, and solving the problem of reduced charging efficiency and increased power consumption.
- the embodiment of the present application also provides corresponding charging equipment, power supply equipment, charging system, computer equipment and computer-readable storage medium, etc. The following are detailed descriptions.
- the charging process of the national standard GB27930-2015 can be divided into the charging handshake stage, the charging parameter configuration stage and the charging stage.
- the charging pile will interact with the BMS in the vehicle through the DC charging port for many times.
- the charging pile will send a charger handshake message (CHM) to the BMS, and the BMS will respond with a vehicle handshake message (BHM) to the charging pile, which is used for the charging pile and the BMS to determine the standard version used by both parties, and then perform insulation detection.
- CHM charger handshake message
- BHM vehicle handshake message
- Scenario 1 The vehicle battery voltage platform is 750V, the user uses a charging pile with a maximum output of 500V for charging, and the vehicle is charged in the second charging mode;
- Scenario 3 The vehicle battery voltage platform is 750V.
- the user uses a charging pile with a maximum output of 750V or 1000V for charging.
- the vehicle first uses the second charging mode and then switches to the first charging mode for charging.
- the charging device in the embodiment of the present application is a rechargeable vehicle with boost charging capability, which can be a vehicle or a power battery module (charging module) in the vehicle shown in FIGS. 1a to 1d .
- the battery pack in the vehicle has a 750V voltage platform, and the specific full charge voltage is 740V.
- the power supply device is a DC charging pile. The charging device and the power supply device are pre-connected, and the user controls the power supply device to start charging the charging device.
- step 303 is executed.
- step 303 is executed.
- step 308 is executed.
- the charging device sends a first message to the power supply device.
- the power supply device sends a second message to the charging device in response to the first message.
- the charging device sends a first message to the power supply device.
- the first message includes the current voltage of the charging device, that is, the first message is a BCP message.
- the power supply device After receiving the first message sent by the charging device, the power supply device will respond to the first message and send a second message to the charging device.
- the second message includes the maximum output voltage of the power supply device.
- the second message is a CML message.
- the charging device receives the second message of the power supply device in response to the first message, that is, the CML message includes the maximum output voltage of the power supply device.
- the charging device determines whether the maximum output voltage of the power supply device is greater than or equal to the full charging voltage of the charging device.
- the charging device After the charging device obtains the maximum output voltage of the power supply device, it is necessary to determine whether the maximum output voltage of the power supply device is greater than or equal to the full charging voltage of the charging device. When the maximum output voltage of the power supply device is greater than or equal to the full charging voltage of the charging device, it can be determined that the power supply device is a high-voltage charging pile, and the first charging mode should be used, and step 306 is executed. When the maximum output voltage of the power supply device is less than the full charging voltage of the charging device, it can be determined that the power supply device is a low-voltage charging pile, and the second charging mode should be used, and step 311 is executed.
- the charging device determines whether a fourth message from the power supply device in response to the third message is received within the first preset time period.
- the charging device In order to avoid the charging pile stopping working due to too long waiting time, the charging device needs to determine whether it has received the fourth message from the power supply device in response to the third message within the first preset time period. If the charging device receives the fourth message from the power supply device in response to the third message within the first preset time period, the charging device determines that the power supply device has a reconnection mechanism and executes step 308. If the charging device does not receive the fourth message from the power supply device in response to the third message within the first preset time period, the charging device determines that the power supply device does not have a reconnection mechanism and can only continue to use the second charging mode and executes step 311.
- steps 306 and 307 are steps for determining whether the power supply device has a reconnection mechanism, that is, the charging device requests the power supply device to reconnect, and the power supply device can also actively initiate a reconnection request. Steps 306 and 307 can be replaced by step 3061.
- the charging device determines whether the fourth message sent by the power supply device is received within the first preset time period.
- the BMS suspends sending messages to the charging pile. If the fifth message fed back by the charging pile, namely the charger error message (CEM), is received within the first preset time period (5s), the BMS waits to receive the fourth message sent by the charging pile, namely the CRM message.
- CEM charger error message
- the charging device determines that the power supply device has a reconnection mechanism and executes step 308. If the charging device does not receive the fourth message within the first preset time period, the charging device determines that the power supply device does not have a reconnection mechanism and can only continue to use the second charging mode, and then try to switch to the first charging mode, and execute step 311.
- the charging device sends a first message to the power supply device.
- the power supply device sends a second message to the charging device in response to the first message.
- the charging device requests the power supply device to charge in a first charging mode.
- step 302 when the insulation detection voltage is greater than the first threshold value, it can be determined that the DC charging pile is a high-voltage charging pile and the first charging mode should be adopted.
- the charging device sends a first message to the power supply device.
- the current voltage of the charging device in the first message is the actual voltage of the charging device. It should be understood that the actual voltage of the charging device will fluctuate with the remaining power of the charging pack.
- the power supply device will still respond to the first message and send a second message to the charging device, and then it can enter the charging stage.
- the charging device requests the power supply device to charge in the first charging mode, and the power supply device charges the charging device in the first charging mode.
- step 307 if the power supply device has a reconnection mechanism, the charging device re-sends the first message to the power supply device. At this time, the current voltage of the charging device in the first message is also the actual voltage of the charging device.
- the power supply device re-receives the first message sent by the charging device.
- the power supply device responds to the first message and sends a second message to the charging device. Then, the charging stage can be entered.
- the charging device requests the power supply device to charge in the first charging mode, and the power supply device charges the charging device in the first charging mode.
- the BMS when the first charging mode is adopted, the BMS requests to close the fast charging positive relay and the fast charging negative relay, and the BMS requests the charging pile to work: the working mode is constant current mode, the requested voltage is the actual voltage of the battery pack + the offset, and the requested current is the allowable charging current of the battery pack + the load consumption current.
- the charging device requests the power supply device to charge in the second charging mode.
- step 305 when the maximum output voltage of the power supply device is less than the full charging voltage of the charging device, it can be determined that the power supply device is a low-voltage charging pile and the second charging mode should be adopted.
- the charging device requests the power supply device to charge in the second charging mode, and the power supply device charges the charging device in the second charging mode.
- step 308 if the charging device does not receive the fourth message from the power supply device in response to the third message within the first preset time period, the charging device determines that the power supply device does not have a reconnection mechanism and can only continue to use the second charging mode.
- the charging device requests the power supply device to charge using the second charging mode, and the power supply device charges the charging device using the second charging mode.
- the boost box is a two-phase boost (borrowing the two-phase winding of the motor to charge in the second charging mode).
- the charging device requests the power supply device to charge in the second charging mode
- the requested voltage adjustment slope is less than or equal to the fourth threshold value
- the requested current adjustment slope is less than or equal to the fifth threshold value, so that the wheel end torque change rate is less than the preset value to reduce the wheel end impact problem caused by the two-phase boost of the motor.
- the fourth threshold value is 5V/s and the fifth threshold value is 10A/s.
- the charging device determines whether the preset conditions are met.
- the charging device can determine that the charging pile is a high-voltage charging pile, but maintains the second charging mode because it does not have a reconnection mechanism. Therefore, after adopting the second charging mode, it is necessary to switch to the first charging mode. At this time, the charging device needs to determine whether the charging device and the power supply device meet the preset conditions.
- the preset conditions include at least one of the following: the number of times the charging device requests the power supply device to switch to the first charging mode is less than or equal to the second threshold value, the charging device is not in the pre-charging heating state, and the difference between the output voltage of the power supply device and the current voltage of the charging device within the second preset time period is less than or equal to the third threshold value.
- the second threshold value can be 1 time
- the second preset time is 3 minutes
- the third threshold value is 10V
- the third threshold value is the minimum voltage difference of the second charging mode of the MCU. Limiting the third threshold value can avoid adhesion when closing the relay (the relay cannot be closed or disconnected).
- the charging device determines that the preset conditions are met when it is the first time that the power supply device is requested to switch to the first charging mode, the charging device is not in the pre-charging heating state, and within 3 minutes, the difference between the output voltage of the power supply device and the current voltage of the charging device is less than or equal to 10V.
- the charging device allows switching to the first charging mode.
- the power supply device switches to the first charging mode to charge the charging device and executes step 313. If one of the preset conditions is not met, the second charging mode is maintained or the process returns to step 311.
- the preset conditions also include whether the maximum output voltage of the charging pile is greater than or equal to the full charge voltage of the battery pack (battery full charge voltage). That is, when the charging device determines whether the preset conditions are met, the charging device can also re-determine whether the charging pile is a high-voltage charging pile, that is, the charging device re-receives the CML message sent by the power supply device, and determines whether the maximum output voltage of the charging pile is greater than or equal to the full charge voltage of the battery pack. If so, it is considered that the current charging pile is a high-voltage pile and needs to be switched to the first charging mode. If the maximum output voltage of the charging pile is less than the full charge voltage of the battery pack, it is considered that the current charging pile is a low-voltage pile and continues to be charged in the second charging mode.
- step 313 the number of requests by the charging device to request the power supply device to switch to the first charging mode is counted, that is, the determination of the preset condition does not affect the number of requests.
- the charging device requests the power supply device to switch to the first charging mode.
- the adjustment time for switching is relatively long.
- the charging device still needs to request the second charging mode to ensure that the charging pile does not stop working.
- the process is the same as requesting the second charging mode. The difference is that when the BMS requests the charging pile to work, the requested voltage is the actual voltage of the battery pack.
- the condition in the preset condition the difference between the output voltage of the power supply device and the current voltage of the charging device within the second preset time period is less than or equal to the third threshold value. This can be judged after the above-mentioned request for the second charging mode.
- the preset condition can be understood as whether the switching condition is met, and other preset conditions can be understood as whether switching is allowed.
- the charging device When the charging device requests the power supply device to switch to the first charging mode, the charging device stops enabling the MCU, and the MCU stops the second charging mode. After the MCU stops, the charging device closes the (fast charging) negative relay, controls the capacitor of the boost box to be disconnected from the second charging mode circuit, and uses the first charging mode for charging.
- the charging device determines whether the charging mode is successfully switched to the first charging mode.
- step 313 Since the execution of step 313 may fail, it is also necessary to consider the situation of switching failure (for example, MCU shutdown failure or negative relay closing failure). If the switch to the first charging mode fails, the charging device requests the power supply device to maintain the second charging mode. If the switch is successful, the first charging mode is maintained.
- switching failure for example, MCU shutdown failure or negative relay closing failure
- the insulation detection and message interaction methods are used to identify high-voltage and low-voltage charging piles, which improves the accuracy of charging pile identification and avoids the unreasonable use of boost charging methods, thereby solving the problems of reduced charging efficiency and increased power consumption and extending the service life of the vehicle motor.
- the request unit 704 is used to request charging in the first charging mode when the maximum output voltage of the power supply device is greater than or equal to the full charging voltage of the charging device.
- the request unit 704 can execute step 310 in the above method embodiment.
- the charging device when the charging device requests the power supply device to charge in the second charging mode, the requested voltage adjustment slope is less than or equal to the fourth threshold value, and the requested current adjustment slope is less than or equal to the fifth threshold value.
- the request unit 704 is specifically used to close the fast charging positive relay and control the capacitor of the boost box to be connected to the boost charging circuit, so that the capacitor in the boost box is pre-charged to the target voltage.
- the current voltage of the charging device is a minimum value between a maximum input voltage of the charging device and an actual voltage of the charging device.
- an embodiment of a power supply device 800 provided in an embodiment of the present application includes:
- the first sending unit 801 is used to send the insulation detection voltage to the charging device; the first sending unit 801 can execute step 301 in the above method embodiment.
- the charging unit 804 is specifically used to determine whether the power supply device has a reconnection mechanism; if the power supply device has a reconnection mechanism, re-receive the first message sent by the charging device, and the current voltage of the charging device is the actual voltage of the charging device; send a second message to the charging device, and use the first charging mode to charge the charging device.
- the charging unit 804 is also used to charge the charging device in the second charging mode if the power supply device does not have a reconnection mechanism; if the charging device and the power supply device meet preset conditions, switch to the first charging mode to charge the charging device.
- the charging unit 804 is specifically used to enable the charging device to close the fast charging positive relay, and enable the charging device to control the capacitor of the boost box to be connected to the boost charging circuit, so that the capacitor in the boost box is pre-charged to the target voltage.
- the charging unit 804 is further specifically configured to enable the charging device to close a fast charging positive relay and a fast charging negative relay.
- the power supply device 800 provided in the embodiment of the present application may be a DC charging pile.
- the specific implementation method may be understood by referring to the corresponding content of the embodiment part of the aforementioned charging detection method, and will not be repeated here.
- a computer-readable storage medium in which computer-executable instructions are stored.
- the device executes the above-mentioned charging detection method.
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Abstract
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Claims (29)
- 一种充电检测方法,其特征在于,包括:充电设备获取供电设备的绝缘检测电压;当所述绝缘检测电压小于或等于第一门限值,所述充电设备向所述供电设备发送第一报文,所述第一门限值基于所述充电设备的满充电压确定,所述第一报文包括所述充电设备的当前电压;所述充电设备接收所述供电设备响应于所述第一报文的第二报文,所述第二报文包括所述供电设备的最大输出电压;当所述供电设备的最大输出电压大于或等于所述充电设备的满充电压,所述充电设备请求采用第一充电模式进行充电。
- 根据权利要求1所述的方法,其特征在于,所述充电设备请求采用第一充电模式进行充电包括:所述充电设备判断所述供电设备是否具备重连机制;若所述供电设备具备重连机制,所述充电设备重新向所述供电设备发送所述第一报文,所述充电设备的当前电压为所述充电设备的实际电压;所述充电设备接收所述第二报文,并请求所述供电设备采用第一充电模式进行充电。
- 根据权利要求2所述的方法,其特征在于,所述充电设备判断所述供电设备是否具备重连机制包括:所述充电设备向所述供电设备发送第三报文;所述若所述供电设备具备重连机制,所述充电设备重新向所述供电设备发送所述第一报文包括:若所述充电设备在第一预设时间段内接收到所述供电设备响应于所述第三报文的第四报文,所述充电设备重新向所述供电设备发送所述第一报文。
- 根据权利要求2所述的方法,其特征在于,所述充电设备判断所述供电设备是否具备重连机制包括:当充电设备在第一预设时间段内接收到第五报文,充电设备判断是否在第一预设时间段内接收到供电设备发送的第四报文;所述若所述供电设备具备重连机制,所述充电设备重新向所述供电设备发送所述第一报文包括:若所述充电设备在第一预设时间段内接收到所述供电设备发送的第四报文,所述充电设备重新向所述供电设备发送所述第一报文。
- 根据权利要求2-4中任一项所述的方法,其特征在于,所述方法还包括:若所述供电设备不具备重连机制,所述充电设备请求所述供电设备采用第二充电模式进行充电;若所述充电设备和供电设备满足预设条件,所述充电设备请求所述供电设备切换至第一充电模式。
- 根据权利要求5所述的方法,其特征在于,所述预设条件包括所述充电设备请求所 述供电设备切换至第一充电模式的请求次数小于或等于第二门限值、所述充电设备不处于充电前加热状态,以及第二预设时间段内存在所述供电设备的输出电压与所述充电设备的当前电压的差值小于或等于第三门限值中的至少一项。
- 根据权利要求5或6所述的方法,其特征在于,所述方法还包括:所述充电设备判断是否成功切换至第一充电模式;若切换至第一充电模式失败,所述充电设备请求所述供电设备保持第二充电模式。
- 根据权利要求5-7中任一项所述的方法,其特征在于,所述充电设备请求所述供电设备采用第二充电模式进行充电时,请求的电压调整斜率小于或等于第四门限值,请求的电流调整斜率小于或等于第五门限值。
- 根据权利要求5-7中任一项所述的方法,其特征在于,所述充电设备请求所述供电设备采用第二充电模式进行充电包括:所述充电设备闭合快充正继电器,并控制升压盒的电容接入升压充电回路,以使所述升压盒内的电容预充至目标电压。
- 根据权利要求1-9中任一项所述的方法,其特征在于,所述充电设备请求采用第一充电模式进行充电包括:所述充电设备闭合快充正继电器和快充负继电器。
- 根据权利要求1所述的方法,其特征在于,所述充电设备的当前电压为所述充电设备的最大输入电压与所述充电设备的实际电压中的最小值。
- 一种充电检测方法,其特征在于,包括:供电设备发送绝缘检测电压至充电设备;当所述绝缘检测电压小于或等于第一门限值,所述供电设备接收所述充电设备发送的第一报文,所述第一门限值基于所述充电设备的满充电压确定,所述第一报文包括所述充电设备的当前电压;所述供电设备响应于所述第一报文,发送第二报文至所述充电设备,所述第二报文包括所述供电设备的最大输出电压;当所述供电设备的最大输出电压大于或等于所述充电设备的满充电压,所述供电设备采用第一充电模式给所述充电设备进行充电。
- 根据权利要求12所述的方法,其特征在于,所述供电设备采用第一充电模式给所述充电设备进行充电包括:所述供电设备判断是否具备重连机制;若所述供电设备具备重连机制,所述供电设备重新接收所述充电设备发送的第一报文,所述充电设备的当前电压为所述充电设备的实际电压;所述供电设备发送所述第二报文至所述充电设备,并采用第一充电模式给所述充电设备进行充电。
- 根据权利要求13所述的方法,其特征在于,所述供电设备判断是否具备重连机制包括:所述供电设备接收所述充电设备发送的第三报文;所述若所述供电设备具备重连机制,所述供电设备重新接收所述充电设备发送的第一报文包括:若所述充电设备在第一预设时间段内接收到所述供电设备响应于所述第三报文的第四报文,所述供电设备重新接收所述充电设备发送的第一报文。
- 根据权利要求13所述的方法,其特征在于,所述供电设备判断是否具备重连机制包括:所述供电设备发送第五报文至所述充电设备;所述若所述供电设备具备重连机制,所述供电设备重新接收所述充电设备发送的第一报文包括:若所述充电设备在第一预设时间段内接收到所述供电设备发送的第四报文,所述供电设备重新接收所述充电设备发送的第一报文。
- 根据权利要求13-15中任一项所述的方法,其特征在于,所述方法还包括:若所述供电设备不具备重连机制,所述供电设备采用第二充电模式给所述充电设备进行充电;若所述充电设备和供电设备满足预设条件,所述供电设备切换至第一充电模式给所述充电设备进行充电。
- 根据权利要求16所述的方法,其特征在于,所述预设条件包括所述充电设备请求所述供电设备切换至第一充电模式的请求次数小于或等于第二门限值、所述充电设备不处于充电前加热状态,以及第二预设时间段内存在所述供电设备的输出电压与所述充电设备的当前电压的差值小于或等于第三门限值中的至少一项。
- 根据权利要求16或17所述的方法,其特征在于,所述供电设备采用第二充电模式给所述充电设备进行充电时,电压调整斜率小于或等于第三门限值,电流调整斜率小于或等于第四门限值。
- 根据权利要求16-18中任一项所述的方法,其特征在于,所述供电设备采用第二充电模式给所述充电设备进行充电包括:所述供电设备使能所述充电设备闭合快充正继电器,并使能所述充电设备控制升压盒的电容接入升压充电回路,以使所述升压盒内的电容预充至目标电压。
- 根据权利要求12-19中任一项所述的方法,其特征在于,所述供电设备采用第一充电模式给所述充电设备进行充电包括:所述供电设备使能所述充电设备闭合快充正继电器和快充负继电器。
- 根据权利要求12所述的方法,其特征在于,所述充电设备的当前电压为所述充电设备的最大输入电压与所述充电设备的实际电压中的最小值。
- 一种充电设备,其特征在于,包括:获取单元,用于获取供电设备的绝缘检测电压;发送单元,用于当所述绝缘检测电压小于或等于第一门限值,向所述供电设备发送第一报文,所述第一门限值基于所述充电设备的满充电压确定,所述第一报文包括所述充电设备的当前电压;接收单元,用于接收所述供电设备响应于所述第一报文的第二报文,所述第二报文包括所述供电设备的最大输出电压;请求单元,用于当所述供电设备的最大输出电压大于或等于所述充电设备的满充电压,请求采用第一充电模式进行充电。
- 一种供电设备,其特征在于,包括:第一发送单元,用于发送绝缘检测电压至充电设备;接收单元,用于当所述绝缘检测电压小于或等于第一门限值,接收所述充电设备发送的第一报文,所述第一门限值基于所述充电设备的满充电压确定,所述第一报文包括所述充电设备的当前电压;第二发送单元,用于响应于所述第一报文,发送第二报文至所述充电设备,所述第二报文包括所述供电设备的最大输出电压;充电单元,用于当所述供电设备的最大输出电压大于或等于所述充电设备的满充电压,采用第一充电模式给所述充电设备进行充电。
- 一种车辆,其特征在于,包括充电设备,所述充电设备用于执行如权利要求1-11中任一项所述的方法。
- 一种供电设备,其特征在于,所述供电设备用于执行如权利要求12-21中任一项所述的方法。
- 一种充电系统,其特征在于,包括如权利要求24所述的充电设备和如权利要求25所述的供电设备,所述充电设备与所述供电设备电连接,所述供电设备用于给所述充电设备充电。
- 一种电子设备,包括:处理器和存储器,所述存储器用于存储程序代码,所述处理器用于调用所述存储器中的程序代码以使得所述处理器执行如权利要求1-21中任一项所述的方法。
- 一种计算机程序产品,存储一个或多个计算机执行指令,其特征在于,当所述计算机执行指令被处理器执行时,所述处理器执行如权利要求1-21中任一项所述的方法。
- 一种计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1-21中任一项所述的方法。
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