CN213261977U - Charging system for new energy automobile - Google Patents

Charging system for new energy automobile Download PDF

Info

Publication number
CN213261977U
CN213261977U CN202022156816.7U CN202022156816U CN213261977U CN 213261977 U CN213261977 U CN 213261977U CN 202022156816 U CN202022156816 U CN 202022156816U CN 213261977 U CN213261977 U CN 213261977U
Authority
CN
China
Prior art keywords
controller
relay
unit
battery
voltage device
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.)
Active
Application number
CN202022156816.7U
Other languages
Chinese (zh)
Inventor
李想
赵永强
李晶
赵开成
李畅
姜鹏翰
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.)
FAW Group Corp
Original Assignee
FAW Group Corp
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 FAW Group Corp filed Critical FAW Group Corp
Priority to CN202022156816.7U priority Critical patent/CN213261977U/en
Application granted granted Critical
Publication of CN213261977U publication Critical patent/CN213261977U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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

Abstract

The utility model discloses a charging system for new energy automobile, which comprises a controller, a battery, a fault detection control unit, a relay unit and a high-voltage device unit, wherein the fault detection control unit is respectively connected with the high-voltage device unit and the controller, the fault detection control unit is used for collecting fault information generated by the high-voltage device unit, sending the fault information to the controller and controlling the working state of the high-voltage device unit, the controller, the battery, the relay unit and the high-voltage device unit are connected in series in a high-voltage interlocking loop through a detection signal line, the controller is used for detecting whether the high-voltage device unit is disconnected from the high-voltage interlocking loop or not, the battery is connected with the high-voltage device unit through the relay unit, and the controller controls the relay unit to be connected or disconnected according to the connection state and the fault information of the high-voltage device unit in the high-voltage interlocking loop.

Description

Charging system for new energy automobile
Technical Field
The embodiment of the utility model provides a relate to new energy automobile technique, especially relate to a charging system for new energy automobile.
Background
Electric vehicles gradually become a focus of attention and consumption due to the advantages of easy acquisition of energy, environmental protection, no pollution, good driving experience, low travel cost, low maintenance cost and the like, and under the support and promotion of national relevant policies, the electric vehicle industry and matched charging facilities thereof in China are greatly developed from the aspects of technology and conservation quantity.
The working voltage of the charging circuit of the electric automobile is up to several hundred volts, and when the high-voltage circuit has faults such as short circuit, open circuit and the like, if the electric automobile is not provided with a safe and effective charging system, the electric automobile is easy to have electric shock danger or damage the charging system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a charging system for new energy automobile to reach the purpose that improves on-vehicle charging system reliability.
The embodiment of the utility model provides a charging system for a new energy automobile, which comprises a controller, a battery, a fault detection control unit, a relay unit and a high-voltage device unit,
the fault detection control unit is respectively connected with the high-voltage device unit and the controller, and is used for acquiring fault information generated by the high-voltage device unit, sending the fault information to the controller and controlling the working state of the high-voltage device unit,
the controller, the battery, the relay unit and the high-voltage device unit are connected in series in a high-voltage interlocking loop through detection signal lines, the controller is used for detecting whether the high-voltage device unit is disconnected from the high-voltage interlocking loop or not,
the battery is connected with the high-voltage device unit through the relay unit, and the controller controls the relay unit to be switched on or switched off according to the connection state of the high-voltage device unit in the high-voltage interlocking loop and the fault information.
Further, the high-voltage device unit comprises a vehicle-mounted charger and a DCDC module, the fault detection control unit comprises a charger controller and a DCDC controller,
the charger controller is respectively connected with the vehicle-mounted charger and the controller, the charger controller is used for controlling the working state of the vehicle-mounted charger, collecting and reporting fault information of the vehicle-mounted charger to the controller,
the DCDC controller is respectively connected with the DCDC module and the controller, and is used for controlling the working state of the DCDC module, collecting and reporting the fault information of the DCDC module to the controller.
Further, the relay unit comprises a main positive relay, a main negative relay, a direct current positive relay and a direct current negative relay,
the battery is connected with the vehicle-mounted charger through the main positive relay and the main negative relay,
the battery is connected with the direct current charging interface through the main positive relay, the main negative relay, the direct current positive relay and the direct current negative relay.
Furthermore, the device also comprises a pre-charging relay and a pre-charging resistor,
the pre-charging relay is connected with the pre-charging resistor in series and then connected with two ends of the main positive relay in parallel.
Further, the device also comprises a first temperature sensor,
the first temperature sensor is configured at the direct-current charging interface and connected with the controller, and the first temperature sensor is used for collecting the temperature of the direct-current charging interface.
Further, a second temperature sensor is also included,
the second temperature sensor is configured at an alternating current charging interface and connected with the controller, and the second temperature sensor is used for collecting the temperature of the alternating current charging interface.
Furthermore, the device also comprises an insulation detection unit,
the insulation detection unit is connected in parallel in a charging loop of the battery and used for collecting and reporting insulation resistance information to the controller.
The battery management unit is respectively connected with the battery and the controller, and is used for collecting and reporting the state information of the battery to the controller.
And the display instrument is connected with the controller and used for displaying the fault information acquired by the controller.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a charging system, the control circuit design that will be used for monitoring high-pressure interlocking return circuit and high-pressure device unit including high-pressure device unit high-voltage part is for two independent control circuit, and the configuration is exclusively used in high-pressure device unit control and fault monitoring's fault detection the control unit in high-pressure device unit control circuit, when the controller in high-pressure interlocking return circuit breaks down, can control high-pressure device unit stop work through fault detection the control unit, in order to ensure charging system's security performance, set up controller and fault detection the control unit respectively in two independent control circuit in addition, be favorable to fault type's quick classification, be convenient for realize the fault handling strategy of characteristic to specific fault type, charging system's flexibility and ease for use have been improved.
Drawings
Fig. 1 is a block diagram of a charging system in the embodiment;
fig. 2 is a block diagram of another charging system configuration in the embodiment;
fig. 3 is a block diagram of a charging system according to still another embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a block diagram of a charging system in an embodiment, and referring to fig. 1, the charging system includes a controller 1, a battery 2, a failure detection control unit 3, a relay unit 4, and a high-voltage device unit 5.
The fault detection control unit 3 is respectively connected with the high-voltage device unit 5 and the controller 1, and the fault detection control unit 3 is used for acquiring fault information generated by the high-voltage device unit 5, sending the fault information to the controller 1 and controlling the working state of the high-voltage device unit 5.
The controller 1, the battery 2, the relay unit 4 and the high-voltage device unit 5 are connected in series in the high-voltage interlock circuit through detection signal lines, and the controller 1 is used for detecting whether the high-voltage device unit is disconnected from the high-voltage interlock circuit.
The battery 2 is connected with the high-voltage device unit 5 through the relay unit 4, and the controller 1 controls the relay unit 4 to be turned on or off according to the connection state of the high-voltage device unit 5 in the high-voltage interlock circuit and the fault information.
Illustratively, the high-voltage device Unit 5 mainly includes high-voltage components such as an on-board charger and a DCDC converter, and a high-voltage Distribution box (Power Distribution Unit PDU) may be disposed in the high-voltage device Unit 5, and the high-voltage Distribution box may be connected in series between the on-board charger and the DCDC converter as a bridge for transmitting a Power supply signal.
For example, in the present embodiment, the relay unit 4 may include a circuit breaker or a relay, the relay unit 4 is configured to connect the battery 2 and the high voltage device unit 5, when the relay unit 4 is turned on, a line between the battery 2 and the high voltage device unit 5 is turned on, electric energy of the battery 2 may be transmitted to the high voltage device unit 5, so that the high voltage device unit 5 may perform a corresponding work task, and when the relay unit 4 is turned off, the high voltage device unit 5 may be disconnected from the high voltage circuit.
Illustratively, the fault detection control unit 3 is a collection of controllers adapted to the high voltage device unit 5 with several specific functions. For example, if the high-voltage device unit 5 is configured with a DCDC converter and a vehicle-mounted charger, the fault detection control unit 3 includes a DCDC controller and a charger controller, the DCDC controller is connected to the DCDC converter, the DCDC controller can control the working state and the working mode of the DCDC, and can determine the fault type or collect fault information sent by the DCDC converter when the DCDC converter fails, the charger controller is connected to the vehicle-mounted charger, and the charger controller can control the connection state of the vehicle-mounted charger and collect fault information of the vehicle-mounted charger.
For example, in this embodiment, the battery 2, the relay unit 4, and the high-voltage device unit 5 are connected in series with the controller 1 through the detection signal line, and an individual signal detection loop is formed by using the detection signal line as a high-voltage interlock loop, and when the battery 2, the relay unit 4, or the high-voltage device unit 5 are abnormal, which causes the high-voltage interlock loop to be disconnected, and the controller cannot receive the detection signal in the high-voltage interlock loop, the controller 1 may control the relay unit 1 to be disconnected, so as to ensure the safety of the charging system and the entire vehicle system.
In the embodiment, the high-voltage interlocking loop for monitoring the high-voltage components including the high-voltage device unit and the like and the control loop of the high-voltage device unit are designed into two independent control loops, the fault detection control unit special for controlling and monitoring the high-voltage device unit is configured in the control loop of the high-voltage device unit, when a controller in the high-voltage interlocking loop breaks down, the high-voltage device unit can be controlled to stop working through the fault detection control unit to ensure the safety performance of the charging system, in addition, the controller and the fault detection control unit are respectively arranged in the two independent control loops, the rapid classification of fault types is facilitated, a specific fault processing strategy is conveniently realized aiming at the specific fault types, and the flexibility and the usability of the charging system are improved.
Fig. 2 is a block diagram of another charging system structure in an embodiment, fig. 3 is a block diagram of another charging system structure in an embodiment, and referring to fig. 2 and fig. 3, as an implementation, specifically, the high-voltage device unit includes an on-vehicle charger 51 and a DCDC module 52, and the fault detection control unit includes a charger controller 31 and a DCDC controller 32.
The charger controller 31 is respectively connected with the vehicle-mounted charger and the controller 1, the charger controller 31 is used for controlling the working state of the vehicle-mounted charger 51, collecting and reporting fault information of the vehicle-mounted charger 51 to the controller 1, the DCDC controller 32 is respectively connected with the DCDC module 52 and the controller 1, and the DCDC controller 32 is used for controlling the working state of the DCDC module 52, collecting and reporting the fault information of the DCDC module 52 to the controller 1.
The relay unit 4 includes a main positive relay 41, a main negative relay 42, a direct-current positive relay 43, and a direct-current negative relay 44. The battery 2 is connected with an on-vehicle charger 51 through a main positive relay 41 and a main negative relay 42. Battery 2 is connected to dc charging interface 102 via main positive relay 41, main negative relay 42, dc positive relay 43, and dc negative relay 44. The device also comprises a pre-charging relay 6 and a pre-charging resistor R, wherein the pre-charging relay 6 is connected with the pre-charging resistor R in series and then connected with two ends of the main positive relay 41 in parallel.
The charging system further includes a first temperature sensor 202, the first temperature sensor 202 is disposed at the dc charging interface 102 and connected to the controller 1, and the first temperature sensor 202 is configured to acquire a temperature of the dc charging interface 102. The charging system further comprises a second temperature sensor 201, the second temperature sensor 201 is configured at the ac charging interface 101 and is connected with the controller 1, and the second temperature sensor 101 is used for acquiring the temperature of the ac charging interface 102.
The charging system further comprises an insulation detection unit 7, wherein the insulation detection unit 7 is connected in parallel in a charging loop of the battery 2 and used for collecting and reporting insulation resistance information to the controller 1. For example, the insulation detecting unit 7 may be an electronic insulation resistance meter.
The charging system further comprises a battery management unit 8, the battery management unit 8 is respectively connected with the battery 2 and the controller 1, and the battery management unit 8 is used for collecting and reporting the state information of the battery 2 to the controller 1. Illustratively, the battery management unit 8 may be a battery management system BMS.
The charging system further comprises a display instrument 9, and the display instrument 9 is connected with the controller 1 and used for displaying fault information collected by the controller 1.
Illustratively, the operation process of the charging system includes:
when the charging system is connected with the alternating-current charging pile, the controller controls the pre-charging relay and the main negative relay to be closed to charge the capacitor at the battery end, then the controller controls the main positive relay to be closed, the pre-charging relay is disconnected, and the battery is charged through the vehicle-mounted charger.
When the alternating-current charging pile is used for charging the battery, the DCDC controller sends a driving control signal to the DCDC module and monitors the working state of the DCDC module, when the DCDC module is abnormal, the abnormal state of the DCDC module is judged, and the abnormal state is reported to the controller through the CAN signal line; the charger controller sends a starting control signal to the vehicle-mounted charger, monitors the working state of the vehicle-mounted charger, judges the abnormal state of the vehicle-mounted charger when the vehicle-mounted charger is abnormal, and reports the abnormal state to the controller through a CAN signal line; the controller collects the temperature of the alternating current charging interface through the second temperature sensor and collects the resistance value of the insulation resistor through the insulation detection unit.
If the DCDC module or the vehicle-mounted charger is abnormal, the DCDC controller controls the DCDC module to stop working, the charger controller controls the vehicle-mounted charger to stop working, and then the controller controls the main negative relay and the main positive relay to be sequentially disconnected; if the temperature of the alternating-current charging interface is too high, the resistance value of the insulation resistor is abnormal or a certain high-voltage component in the high-voltage interlocking loop is abnormally disconnected from the high-voltage interlocking loop, the controller controls the main negative relay and the main positive relay to be sequentially disconnected, then the DCDC controller controls the DCDC module to stop working, and the charger controller controls the vehicle-mounted charger to stop working. And when the controller, the DCDC controller and the charger controller execute the preset safety control strategy, the controller controls the display instrument to display the fault type.
When the charging system is connected with the direct-current charging pile, the controller controls the main negative relay, the direct-current charging negative relay and the pre-charging relay to be closed, the capacitor at the battery end is charged, then the direct-current charging positive relay is controlled to be closed, the pre-charging relay is controlled to be closed and disconnected, and the battery is charged through the direct-current charging pile.
When the direct current charging pile is used for charging the battery, the controller collects the temperature of the direct current charging interface through the first temperature sensor and collects the resistance value of the insulation resistor through the insulation detection unit.
If the temperature of the direct current charging interface is too high, the resistance value of the insulation resistor is abnormal or a certain high-voltage component in the high-voltage interlocking loop is abnormally disconnected from the high-voltage interlocking loop, the controller controls the direct current charging negative relay and the direct current charging positive relay to be sequentially disconnected. Meanwhile, the controller instructs the DCDC controller to prohibit the DCDC module from starting, and instructs the charger controller to prohibit the vehicle-mounted charger from working. And when the controller executes the preset safety control strategy, the controller controls the display instrument to display the fault type.
For example, when the battery is charged by the charging system, if the controller fails to communicate with the DCDC controller and the charging controller, the controller controls the pre-charging relay, the main negative relay, the main positive relay, the direct-current charging negative relay and the direct-current charging positive relay to be disconnected, the DCDC controller controls the DCDC module to be prohibited from being started, and the charging controller controls the vehicle-mounted charger to be prohibited from working.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (9)

1. A charging system for a new energy automobile is characterized by comprising a controller, a battery, a fault detection control unit, a relay unit and a high-voltage device unit,
the fault detection control unit is respectively connected with the high-voltage device unit and the controller, and is used for acquiring fault information generated by the high-voltage device unit, sending the fault information to the controller and controlling the working state of the high-voltage device unit,
the controller, the battery, the relay unit and the high-voltage device unit are connected in series in a high-voltage interlocking loop through detection signal lines, the controller is used for detecting whether the high-voltage device unit is disconnected from the high-voltage interlocking loop or not,
the battery is connected with the high-voltage device unit through the relay unit, and the controller controls the relay unit to be switched on or switched off according to the connection state of the high-voltage device unit in the high-voltage interlocking loop and the fault information.
2. The charging system for a new energy automobile according to claim 1, wherein the high voltage device unit includes an on-board charger and a DCDC module, the fault detection control unit includes a charger controller and a DCDC controller,
the charger controller is respectively connected with the vehicle-mounted charger and the controller, the charger controller is used for controlling the working state of the vehicle-mounted charger, collecting and reporting fault information of the vehicle-mounted charger to the controller,
the DCDC controller is respectively connected with the DCDC module and the controller, and is used for controlling the working state of the DCDC module, collecting and reporting the fault information of the DCDC module to the controller.
3. The charging system for a new energy automobile according to claim 2, wherein the relay unit includes a main positive relay, a main negative relay, a direct current positive relay, and a direct current negative relay,
the battery is connected with the vehicle-mounted charger through the main positive relay and the main negative relay,
the battery is connected with the direct current charging interface through the main positive relay, the main negative relay, the direct current positive relay and the direct current negative relay.
4. The charging system for the new energy automobile according to claim 3, further comprising a pre-charge relay and a pre-charge resistor,
the pre-charging relay is connected with the pre-charging resistor in series and then connected with two ends of the main positive relay in parallel.
5. The charging system for a new energy automobile according to claim 3, further comprising a first temperature sensor,
the first temperature sensor is configured at the direct-current charging interface and connected with the controller, and the first temperature sensor is used for collecting the temperature of the direct-current charging interface.
6. The charging system for a new energy automobile according to claim 3, further comprising a second temperature sensor,
the second temperature sensor is configured at an alternating current charging interface and connected with the controller, and the second temperature sensor is used for collecting the temperature of the alternating current charging interface.
7. The charging system for a new energy automobile according to claim 1, further comprising an insulation detection unit,
the insulation detection unit is connected in parallel in a charging loop of the battery and used for collecting and reporting insulation resistance information to the controller.
8. The charging system for the new energy automobile according to claim 1, further comprising a battery management unit, wherein the battery management unit is respectively connected to the battery and the controller, and the battery management unit is configured to collect and report status information of the battery to the controller.
9. The charging system for the new energy automobile according to claim 1, further comprising a display instrument, wherein the display instrument is connected with the controller and is used for displaying the fault information collected by the controller.
CN202022156816.7U 2020-09-27 2020-09-27 Charging system for new energy automobile Active CN213261977U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022156816.7U CN213261977U (en) 2020-09-27 2020-09-27 Charging system for new energy automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022156816.7U CN213261977U (en) 2020-09-27 2020-09-27 Charging system for new energy automobile

Publications (1)

Publication Number Publication Date
CN213261977U true CN213261977U (en) 2021-05-25

Family

ID=75945738

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022156816.7U Active CN213261977U (en) 2020-09-27 2020-09-27 Charging system for new energy automobile

Country Status (1)

Country Link
CN (1) CN213261977U (en)

Similar Documents

Publication Publication Date Title
CN107599857B (en) Pure electric vehicle charging system and charging method based on lithium battery
CN104661851B (en) For the non-contact power charging system charged to motor vehicle battery
CN101073990B (en) Power-supply system with safety protector for electric automobile and its control method
US20190105998A1 (en) Hybrid and electric vehicle battery pack maintenance device
CN107065972B (en) Direct current charger with charging gun temperature monitoring module
CN101025436B (en) High-voltage safety monitoring device for electric automobile
US9696385B2 (en) Apparatus for detecting the state of a rechargeable battery to be checked
CN103419643B (en) A kind of high voltage power distribution control method and device thereof
CN103311965B (en) Batteries in parallel connection group discharge and recharge intelligent management apapratus and method
KR101628942B1 (en) Apparatus and method for detecting disconnection of wire in battery management system
CN102055226A (en) Charge and discharge device for on-board battery and control method of charge and discharge device
CN102175971A (en) Relay state detection method and device of electric vehicle high-voltage system
CN204497817U (en) The wireless charging system of electric automobile
CN110504502B (en) Processing method and device for abnormal battery temperature acquisition, controller and automobile
CN109823285A (en) Electric system, power-on and power-off control method and control system above and below electric automobile high-voltage
CN108973732B (en) Control method of power battery management system
CN209675954U (en) A kind of lithium battery management system for tour bus
CN109302852A (en) Managing device and power-supply system
CN108773281A (en) A kind of electromobile charging management control method
CN105620304A (en) Battery pack thermal buckling monitoring device and electric vehicle
KR20160047633A (en) Insulation Resistance Measuring Unit for Vehicles and Power Distribution Apparatus Including the Same
CN107444128A (en) The monitoring interlock process system and monitoring and interlocking treatment method of a kind of electric automobile whole high-tension cable connection status
KR101856068B1 (en) Apparatus and method for measuring isolation resistance using battery pack voltage
KR20110077387A (en) Fuse breaking monitoring circuit and method of high voltage battery system
EP2986466A1 (en) Method and arrangement for error detection during charging of an energy storage system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant