Charging device, control panel, on-board charger and vehicle of vehicle

Abstract

The application relates to a charging device of a vehicle, a control panel, an on-vehicle charging machine and the vehicle, and relates to the technical field of charging control. The charging device of the vehicle comprises a controller, a wake-up module and a communication module. The controller is used for receiving a mode detection signal and a state signal of the on-vehicle charging machine, and outputting a wake-up signal according to the mode detection signal and the state signal. The wake-up module is connected with the controller and the communication module, and is used for controlling the on-off between a voltage source and the communication module according to the wake-up signal, so that the communication module establishes a communication connection between a charging pile and a battery management system through the controller. The mode detection signal and the state signal can reflect the charging state of the vehicle. The wake-up module controls the on-off between the voltage source and the communication module according to the wake-up signal, so that the communication module works in a working scene. In this way, the working state of the communication module is controlled, and additional sampling devices and detection devices are not needed, so that the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of charging control technology, and in particular to a vehicle charging device, control board, on-board charger, and vehicle. Background Technology

[0002] With the development of the global new energy electric vehicle industry, different regions and countries have formulated their own standards and specifications for charging new energy electric vehicles. Among them, the Chinese national standard for new energy electric vehicle charging logic stipulates that the vehicle-to-charging station communication method adopts Controller Area Network (CAN), which has advantages such as reliable data transmission and strong real-time performance, and can meet the information interaction needs between vehicles and charging stations under the national standard charging system. The European standard for new energy electric vehicle charging logic, on the other hand, adopts Power Line Communication (PLC), which uses power lines as the transmission medium and has the advantages of simple wiring.

[0003] Currently, when Chinese standard new energy electric vehicles are exported to overseas markets, in order to achieve communication compatibility with European standard charging piles, it is usually necessary to add a separate electric vehicle charging communication controller (EVCC) to realize information exchange between CAN communication and PLC communication at the vehicle and charging pile ends.

[0004] However, the EVCC function only works in certain scenarios, such as when the vehicle is being fast charged with DC. It can be stopped at other times. Therefore, the EVCC function also needs to be equipped with circuit components such as a power supply system, sampling circuit and controller, which results in a higher cost for charging piles that are compatible with PLC communication. Utility Model Content

[0005] This application provides a vehicle charging device that reduces the cost of charging piles compatible with PLC communication, thereby at least partially solving the aforementioned technical problems.

[0006] To achieve the above objectives, according to a first aspect of this application, a vehicle charging device is provided, including a controller, a wake-up module, and a communication module;

[0007] The controller is used to receive a mode detection signal and a status signal from the on-board charger, and output a wake-up signal based on the mode detection signal and the status signal.

[0008] The wake-up module is connected to the controller and the communication module, and is used to control the connection and disconnection between the voltage source and the communication module according to the wake-up signal, so that the communication module can establish a communication connection between the charging pile and the battery management system through the controller.

[0009] Optionally, the communication module is connected to the charging pile via a first bus and to the controller, and the controller is connected to the battery management system via a second bus. The communication module is used to convert between the communication protocol of the first bus and the communication protocol of the second bus to establish a communication connection between the charging pile and the battery management system.

[0010] Optionally, it also includes a charging control module connected to the charging pile and the controller, for obtaining the mode detection signal based on the charging mode signal fed back by the charging pile, and outputting the mode detection signal to the controller; and controlling the working state of the on-board charger based on the mode detection signal, and feeding back the state signal to the controller.

[0011] Optionally, the charging control module includes a power conversion unit, a signal sampling unit, and a mode driving unit;

[0012] The signal sampling unit is connected to the charging pile and is used to detect the duty cycle and amplitude of the charging mode signal to obtain the mode detection signal;

[0013] The mode driving unit is connected to the signal sampling unit and is used to control the power conversion unit to enter the working state according to the mode detection signal, and to feed back a first state signal to the controller, so that the controller outputs the wake-up signal of the first level state according to the mode detection signal and the first state signal;

[0014] The power conversion unit is used to convert the AC power from the charging pile into a first DC power to charge the vehicle in the operating state.

[0015] Optionally, the mode driving unit is further configured to control the power conversion unit to stop working according to the mode detection signal, and to feed back a second status signal to the controller, so that the controller outputs the wake-up signal of the second level state according to the mode detection signal and the second status signal.

[0016] Optionally, the wake-up module controls the disconnection between the voltage source and the communication module based on the wake-up signal of the first level state;

[0017] The wake-up module controls the conduction between the voltage source and the communication module according to the wake-up signal of the second level state, so that the communication module establishes a communication connection between the charging pile and the battery management system through the controller, and enables the transmission of DC charging data between the charging pile and the battery management system; wherein, the charging pile outputs a second DC power to charge the vehicle.

[0018] Optionally, the controller includes a first core and a second core;

[0019] The first core is connected to the charging control module and is used to receive the mode detection signal and the status signal, and output the wake-up signal according to the mode detection signal and the status signal;

[0020] The second core is connected to the communication module and the battery management system, and is used to process the DC charging data.

[0021] Optionally, the wake-up module includes a driving circuit and a connection control circuit;

[0022] The driving circuit is connected to the controller and is used to generate a connection control signal according to the wake-up signal;

[0023] The connection control circuit is connected to the drive circuit, the voltage source, and the communication module, and is used to control the connection and disconnection between the voltage source and the communication module according to the connection control signal.

[0024] Optionally, the driving circuit includes a first switching transistor and a first resistor;

[0025] The first switching transistor includes a control electrode for receiving the wake-up signal and connected to a first terminal of the first resistor, a first electrode connected to the connection control circuit, and a second electrode connected to a second terminal of the first resistor and ground.

[0026] Optionally, the connection control circuit includes a second switching transistor and a second resistor;

[0027] The second switching transistor includes a control electrode connected to a first terminal of the first switching transistor and the second resistor, a first electrode connected to the voltage source, and a second electrode connected to the communication module;

[0028] The second terminal of the second resistor is connected to the voltage source.

[0029] According to a second aspect of this application, a control board is provided, including the aforementioned vehicle charging device.

[0030] According to a third aspect of this application, an on-board charger is provided, including the control board described above.

[0031] According to a fourth aspect of this application, a vehicle is provided, including the on-board charger described above.

[0032] In summary, in the vehicle charging device of this application embodiment, the controller receives the mode detection signal and the status signal of the on-board charger and outputs a wake-up signal. This allows the wake-up signal to be directly generated based on the mode detection signal and status signal received by the controller, eliminating the need for additional independent sampling and detection devices. Since the mode detection signal and status signal reflect the vehicle's charging status, the wake-up signal generated based on these signals can characterize whether the communication module needs to operate. Therefore, the wake-up module controls the connection between the voltage source and the communication module based on the wake-up signal, enabling the communication module to power on when required, thus establishing a communication connection between the charging pile and the battery management system through the controller. In this way, while controlling the operating status of the communication module, there is no need for additional independent sampling and detection devices, thereby reducing costs.

[0033] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0036] Figure 1 This is a schematic diagram of a vehicle charging device provided in an exemplary embodiment of this disclosure;

[0037] Figure 2 This is a schematic diagram of a charging control module provided in an exemplary embodiment of this disclosure;

[0038] Figure 3 This is a schematic diagram of a controller provided in an exemplary embodiment of this disclosure;

[0039] Figure 4 This is a circuit connection diagram of the wake-up module provided in an exemplary embodiment of this disclosure;

[0040] Figure 5This is a schematic diagram showing the connection between the vehicle management system and the charging pile and the vehicle charging device provided in an exemplary embodiment of this disclosure.

[0041] Explanation of reference numerals in the attached diagram: 1. Controller; 11. First core; 12. Second core; 2. Wake-up module; 21. Drive circuit; 22. Connection control circuit; 3. Communication module; 4. Charging control module; 41. Signal sampling unit; 42. Mode driving unit; 43. Power conversion unit. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0043] According to the first aspect of this application, referring to Figures 1 to 5 This disclosure provides a vehicle charging device, including a controller 1, a wake-up module 2, and a communication module 3. The controller 1 receives a mode detection signal and a status signal from the on-board charger, and outputs a wake-up signal based on the mode detection signal and the status signal. The wake-up module 2 is connected to the controller 1 and the communication module 3, and controls the connection between a voltage source and the communication module 3 based on the wake-up signal, so that the communication module 3 establishes a communication connection between the charging pile and the vehicle's battery management system through the controller 1.

[0044] The mode detection signal is used to characterize the vehicle's charging mode, which includes DC charging mode and AC charging mode.

[0045] As an example, in DC charging mode, there's no need for the onboard charger to convert AC to DC; instead, the charging station directly outputs DC to the vehicle battery. This results in faster charging speeds and larger fluctuations in current and voltage during charging. In this case, communication module 3 can transmit charging station status information and charging capacity parameters to the vehicle's battery management system (BMS), while simultaneously feeding back battery status information (such as battery voltage, temperature, and internal resistance) monitored by the BMS to the charging station. For instance, if the BMS detects excessively high battery temperature, it transmits this information to the charging station via communication module 3, allowing the charging station to adjust its charging power to prevent battery damage from overheating. Therefore, in DC charging mode, a communication connection needs to be established between the charging station and the BMS for bidirectional exchange of various DC charging data. In AC charging mode, the on-board charger needs to convert the AC power output from the charging pile into DC power suitable for battery charging based on its own power conversion capability. At this time, the power control circuit in the on-board charger adjusts the charging parameters in real time according to the battery status information, while the charging pile only needs to output AC power at a constant power. Therefore, there is no need for charging data interaction between the charging pile and the battery management system. Instead, the charging data interaction is between the on-board charger and the battery management system.

[0046] The status signals include a first status signal and a second status signal, which characterize the state of the on-board charger's participation in energy conversion. For example, the first status signal indicates that the on-board charger needs to perform energy conversion during vehicle charging, converting AC power from the charging pile into DC power, at which point the vehicle is in AC charging mode. The second status signal indicates that the on-board charger does not need to perform energy conversion during vehicle charging, and the charging pile directly outputs DC power, at which point the vehicle is in DC charging mode.

[0047] In the above embodiment, controller 1 receives the mode detection signal and the status signal of the on-board charger and outputs a wake-up signal. This allows the wake-up signal to be directly generated based on the mode detection signal and status signal received by controller 1, eliminating the need for separate sampling and detection devices. Since the mode detection signal and status signal reflect the vehicle's charging status, the wake-up signal generated based on these signals can indicate whether the communication module 3 needs to operate. Therefore, wake-up module 2 controls the connection between the voltage source and communication module 3 based on the wake-up signal, enabling the communication module 3 to power on when needed, thus establishing a communication connection between the charging pile and the battery management system via controller 1. In this way, while controlling the operating status of the communication module 3, separate sampling and detection devices are not required, thereby reducing costs.

[0048] In some embodiments, the communication module 3 is connected to the charging pile via a first bus and to the controller 1, and the controller 1 is connected to the battery management system via a second bus. The communication module 3 is used to convert between the communication protocol of the first bus and the communication protocol of the second bus to establish a communication connection between the charging pile and the battery management system.

[0049] The first bus can be either a Controller Area Network (CAN) bus or a Power Line Communication (PLC) bus. On one hand, the communication module 3 can receive data from the charging pile via the first bus, convert it into data signals conforming to the CAN communication protocol, and transmit it to the controller 1. The controller 1 then processes the data further and transmits it to the battery management system via the second bus. On the other hand, the battery management system transmits data to the controller 1 via the first bus. After processing by the controller 1, the data is transmitted to the communication module 3, and then transmitted by the communication module 3 to the charging pile via the second bus. This establishes a communication connection between the charging pile and the battery management system.

[0050] Reference Figure 2 In some embodiments, the vehicle charging device further includes a charging control module 4, which is connected to the charging pile and the controller 1, for obtaining a mode detection signal based on the charging mode signal fed back by the charging pile and outputting the mode detection signal to the controller 1; and controlling the working state of the on-board charger based on the mode detection signal and feeding back a status signal to the controller 1.

[0051] As an example, the charging mode signal can be a Control Pilot (CP) signal output by the charging pile, which is a pulse width modulation signal that transmits information through duty cycle and amplitude. For example, different amplitudes of the charging mode signal can correspond to different charging states. During normal charging, the amplitude of the charging mode signal can be stable at 12V, indicating that the charging process is normal and communication and power transmission between the charging pile and the vehicle are normal. If charging is interrupted, the amplitude of the charging mode signal can drop to 3V, indicating that the vehicle charging has abnormally stopped. The duty cycle of the charging mode signal is used to characterize the charging mode, which includes AC charging mode and DC charging mode. For example, a duty cycle of 15% to 25% indicates that the vehicle is in AC charging mode; a duty cycle of 65% to 75% indicates that the vehicle is in DC charging mode.

[0052] In the above embodiments, on the one hand, the charging control module 4 can control the working state of the on-board charger according to the mode detection signal, so as to realize the start and stop of the on-board charger, and then output the status signal that can characterize the working state of the on-board charger to the controller 1. On the other hand, the charging control module 4 also generates a mode detection signal and outputs it to the controller 1, so that the controller 1 can output a wake-up signal to control the communication module 3.

[0053] Reference Figure 2 In some embodiments, the charging control module 4 includes a power conversion unit 43, a signal sampling unit 41, and a mode driving unit 42. The signal sampling unit 41 is connected to the charging pile and is used to detect the duty cycle and amplitude of the charging mode signal to obtain a mode detection signal. The mode driving unit 42 is connected to the signal sampling unit 41 and is used to control the power conversion unit 43 to enter the working state according to the mode detection signal, and to feed back a first state signal to the controller 1 so that the controller 1 outputs a wake-up signal of a first level state according to the mode detection signal and the first state signal. The power conversion unit 43 is used to convert the AC power from the charging pile into a first DC power to charge the vehicle when in the working state.

[0054] The charging control module 4 can be powered by the same voltage source as the communication module 3 to reduce costs.

[0055] In the above embodiment, the signal sampling unit 41 detects the duty cycle and amplitude of the charging mode signal, enabling the charging control module 4 to accurately identify the currently required charging mode. The mode driving unit 42 controls the working state of the power conversion unit 43 according to the mode detection signal. When the mode detection signal indicates an AC charging mode, the power conversion unit 43 is activated to convert the AC power output from the charging pile into DC power to charge the vehicle. Simultaneously, a first status signal is fed back to the controller 1 so that the controller 1 can output a wake-up signal based on the first status signal and the mode detection signal, thereby controlling the communication module 3 to enter or stop working.

[0056] In some embodiments, the mode driving unit 42 is further configured to control the power conversion unit 43 to stop working according to the mode detection signal, and to feed back the second status signal to the controller 1, so that the controller 1 outputs a wake-up signal of the second level state according to the mode detection signal and the second status signal.

[0057] In some embodiments, the wake-up module 2 controls the disconnection between the voltage source and the communication module 3 according to the wake-up signal of the first level state; the wake-up module 2 controls the conduction between the voltage source and the communication module 3 according to the wake-up signal of the second level state, so that the communication module 3 establishes a communication connection between the charging pile and the battery management system through the controller 1, so that the charging pile and the battery management system can transmit DC charging data.

[0058] The charging station outputs a second type of DC power to charge the vehicle. The first type of DC power is obtained by the unit conversion unit from AC power, while the second type of DC power is the DC power directly output by the charging station.

[0059] In the above embodiment, the second state signal controller 1 can determine that the power conversion unit 43 is currently in a stopped state. At this time, the controller 1 outputs a second-level wake-up signal based on the mode detection signal and the second state signal to control the communication module 3 to start working. Since the vehicle's DC charging mode and AC charging mode cannot be performed simultaneously, the second state signal enables the controller 1 to output a second-level wake-up signal to control the communication module 3 to start working and enter DC charging mode after confirming that the power conversion unit 43 has stopped working.

[0060] Reference Figure 3 In some embodiments, the controller 1 is a dual-core controller, including a first core 11 and a second core 12; the first core 11 is connected to the charging control module 4 and is used to receive mode detection signals and status signals, and output wake-up signals according to the mode detection signals and status signals; the second core 12 is connected to the communication module 3 and the battery management system and is used to process DC charging data.

[0061] As an example, the dual-core controller 1 is a controller 1 inherent in the on-board charger. The communication module 3 can establish a communication connection between the charging pile and the battery management system through the second core 12, thereby achieving the effect of integrating the communication module 3 into the on-board charger without the need for an additional control unit. Thus, the first core 11 is used to implement the functions of the on-board charger itself, while the second core 12 is used to control the communication module 3, making them functionally independent and preventing interference. Furthermore, data can be transferred between the first core 11 and the second core 12, allowing the control of the communication module 3 to directly utilize the mode detection signals and status signals in the first core 11 without the need for additional detection and sampling units.

[0062] Reference Figure 4 In some embodiments, the wake-up module 2 includes a drive circuit 21 and a connection control circuit 22; the drive circuit 21 is connected to the controller 1 and is used to generate a connection control signal according to the wake-up signal; the connection control circuit 22 is connected to the drive circuit 21, the voltage source and the communication module 3 and is used to control the connection and disconnection between the voltage source and the communication module 3 according to the connection control signal.

[0063] In some embodiments, the driving circuit 21 includes a first switching transistor Q1 and a first resistor R1; the first switching transistor Q1 includes a control electrode for receiving a wake-up signal and connected to a first terminal of the first resistor R1, a first electrode connected to the connection control circuit 22, and a second electrode connected to a second terminal of the first resistor R1 and ground.

[0064] In some embodiments, the connection control circuit 22 includes a second switch Q2 and a second resistor R2; the second switch Q2 includes a control electrode connected to the first terminal of the first switch Q1 and the second resistor R2, a first electrode connected to a voltage source, and a second electrode connected to the communication module 3; the second terminal of the second resistor R2 is connected to the voltage source.

[0065] As an example, taking the first switch Q1 as an N-type transistor and the second switch Q2 as a P-type transistor, the first level state can be a low level state, and the second level state can be a high level state. When the wake-up signal is in the second level state, the wake-up signal is transmitted to the control electrode of the first switch Q1 through the voltage divider of the first resistor R1, so that the first switch Q1 is turned on. At this time, the second resistor R2 is grounded to output a low-level connection control signal, so that the second switch Q2 is turned on. At this time, the voltage source is connected to the power supply terminal of the communication module 3 to supply power to the communication module 3, and the communication module 3 enters the working state. When the wake-up signal is in the first level state, the first switch Q1 is turned off, and the output voltage of the voltage source cannot flow to ground through the first switch Q1, but flows to the control electrode of the second switch Q2 after being divided by the second resistor R2. At this time, a high-level connection control signal is obtained, thereby controlling the second switch Q2 to turn off, and the communication module 3 stops working.

[0066] Reference Figure 5 This disclosure exemplarily describes the operation of a vehicle charging device:

[0067] First, the on-board charger is woken up via CAN communication or hard wire. At this time, the signal sampling unit 41 first confirms that the vehicle current receiving device and the charging gun of the charging pile are correctly connected by the plug presence signal (PP signal). Then, it detects the duty cycle and amplitude of the charging mode signal to obtain the mode detection signal and transmits the mode detection signal to the controller 1 and the mode drive unit 42.

[0068] If the mode detection signal indicates that AC charging mode is required, the mode drive unit 42 controls the power conversion unit 43 to be in working state, converting the AC power from the charging pile into DC power to charge the vehicle. At the same time, a first status signal is output to the controller 1. Then, the controller 1 outputs a wake-up signal of the first level state according to the first status signal and the mode detection signal, so that the wake-up circuit disconnects the connection between the communication module 3 and the voltage source, and the communication module 3 is in a dormant state where it stops working.

[0069] If the mode detection signal indicates a need for DC charging mode, the mode drive unit 42 controls the power conversion unit 43 to stop working and feeds back a second status signal to the controller 1. Then, the controller 1 outputs a second-level wake-up signal based on the second status signal and the mode detection signal, causing the wake-up circuit to connect the voltage source and the communication module 3, thereby powering on the communication module 3 and putting it into operation. At this time, data from the charging pile is output to the communication module 3 via the second bus. The communication module 3 converts the communication protocol of the second bus to the communication protocol of the first bus and transmits it to the controller 1. The controller 1 then transmits the data to the battery management system via the first bus. Simultaneously, data from the battery management system is transmitted to the controller 1 via the first bus. After processing, the controller 1 transmits the data to the communication module 3. The communication module 3 converts the communication protocol of the first bus to the communication protocol of the second bus and transmits it to the charging pile via the second bus. This enables data interaction between the charging pile and the battery management system, allowing the charging pile to directly output DC power to charge the vehicle.

[0070] According to a second aspect of this application, a control board is provided, including the aforementioned vehicle charging device. This on-board charger includes the aforementioned vehicle charging device. The on-board charger possesses all the beneficial effects of the aforementioned vehicle charging device, which will not be elaborated further herein.

[0071] According to a third aspect of this application, an on-board charger is provided, including the control board described above.

[0072] According to a fourth aspect of this application, a vehicle is provided, including the on-board charger described above.

[0073] The vehicles may be gasoline-powered vehicles, plug-in hybrid electric vehicles, or new energy vehicles, etc., and this disclosure does not make specific limitations in this regard.

[0074] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0075] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0076] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0077] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A charging device of a vehicle, characterized by, Includes a controller, a wake-up module, and a communication module; The controller is used to receive a mode detection signal and a status signal from the on-board charger, and output a wake-up signal based on the mode detection signal and the status signal. The wake-up module is connected to the controller and the communication module, and is used to control the on / off connection between the voltage source and the communication module according to the wake-up signal, so that the communication module establishes a communication connection between the charging pile and the vehicle's battery management system through the controller.

2. The charging device of a vehicle according to claim 1, characterized by, The communication module is connected to the charging pile via a first bus and to the controller. The controller is connected to the battery management system via a second bus. The communication module is used to convert between the communication protocol of the first bus and the communication protocol of the second bus to establish a communication connection between the charging pile and the battery management system.

3. The charging device of a vehicle according to claim 2, characterized by, It also includes a charging control module, which is connected to the charging pile and the controller, for obtaining the mode detection signal based on the charging mode signal fed back by the charging pile, and outputting the mode detection signal to the controller; and controlling the working state of the on-board charger based on the mode detection signal, and feeding back the state signal to the controller.

4. The charging device of a vehicle according to claim 3, characterized by The charging control module includes a signal sampling unit, a mode driving unit, and a power conversion unit; The signal sampling unit is connected to the charging pile and is used to detect the duty cycle and amplitude of the charging mode signal to obtain the mode detection signal; The mode driving unit is connected to the signal sampling unit and is used to control the power conversion unit to enter the working state according to the mode detection signal, and to feed back the first state signal to the controller, so that the controller outputs the wake-up signal of the first level state according to the mode detection signal and the first state signal; The power conversion unit is used to convert the AC power from the charging pile into a first DC power in the operating state to charge the vehicle.

5. The charging device of a vehicle according to claim 4, characterized by The mode driving unit is also used to control the power conversion unit to stop working according to the mode detection signal, and to feed back a second status signal to the controller, so that the controller outputs the wake-up signal of the second level state according to the mode detection signal and the second status signal.

6. The charging device of a vehicle according to claim 5, characterized by The wake-up module controls the disconnection between the voltage source and the communication module according to the wake-up signal in the first level state; The wake-up module controls the conduction between the voltage source and the communication module according to the wake-up signal of the second level state, so that the communication module establishes a communication connection between the charging pile and the battery management system through the controller, and enables the transmission of DC charging data between the charging pile and the battery management system; wherein, the charging pile is used to output a second DC power to charge the vehicle.

7. The charging arrangement of claim 6, wherein, The controller includes a first core and a second core; The first core is connected to the charging control module and is used to receive the mode detection signal and the status signal, and output the wake-up signal according to the mode detection signal and the status signal; The second core is connected to the communication module and the battery management system, and is used to process the DC charging data.

8. The vehicle charging device according to claim 1, characterized in that, The wake-up module includes a driving circuit and a connection control circuit; The driving circuit is connected to the controller and is used to generate a connection control signal according to the wake-up signal; The connection control circuit is connected to the drive circuit, the voltage source, and the communication module, and is used to control the connection and disconnection between the voltage source and the communication module according to the connection control signal.

9. The charging arrangement of claim 8, wherein, The driving circuit includes a first switching transistor and a first resistor; The first switching transistor includes a control electrode for receiving the wake-up signal and connected to a first terminal of the first resistor, a first electrode connected to the connection control circuit, and a second electrode connected to a second terminal of the first resistor and ground.

10. The charging device of a vehicle according to claim 9, characterized by The connection control circuit includes a second switching transistor and a second resistor. The second switching transistor includes a control electrode connected to a first terminal of the first switching transistor and the second resistor, a first electrode connected to the voltage source, and a second electrode connected to the communication module; The second terminal of the second resistor is connected to the voltage source.

11. A control board, characterized in that, The charging device includes the vehicle as described in any one of claims 1 to 10.

12. An on-board charger, characterized in that, Includes the control panel as described in claim 11.

13. A vehicle, characterized in that, Includes the on-board charger as described in claim 12.

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