Electric vehicle charging method, device, vehicle and electronic equipment

Abstract

The present application relates to the technical field of electric vehicle charging, and provides an electric vehicle charging method, device, vehicle and electronic device. The method includes: determining whether the vehicle is in a DC charging mode, and if so, cutting off the connection between the vehicle's AC charger and the vehicle's original vehicle charging socket; determining that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle; controlling the main control to send a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state; determining that the vehicle is in a charging state, cutting off the connection between the AC charger and the vehicle's communication port, and controlling the main control to send a signal to the vehicle so that the vehicle remains in a charging state; controlling the DC charging pile to charge the vehicle's battery. According to the electric vehicle charging method of the embodiment of the present application, a DC charging pile can be used directly to charge a hybrid vehicle, and the vehicle can be in a charging state without matching the vehicle's charging protocol, ensuring that the vehicle can be charged normally.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicle charging, and in particular to electric vehicle charging methods, devices, vehicles and electronic equipment. Background Art

[0002] Pure electric vehicles and plug-in hybrid vehicles are rapidly being industrialized, and the number of electric vehicles in China and abroad is increasing rapidly.

[0003] Most of the current hybrid electric vehicles are charged by connecting an AC charger to an AC charging pile. That is to say, most of the hybrid electric vehicles in the related art can only be charged directly using an AC charging pile, but cannot be charged directly using a DC charging pile. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes an electric vehicle charging method, device, vehicle and electronic device, which can directly use a DC charging pile to charge a hybrid vehicle, so that the hybrid vehicle can be directly charged using both an AC charging pile and a DC charging pile, and the vehicle can be in a charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0005] According to the first aspect of the present application, the electric vehicle charging method includes:

[0006] Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the AC charger of the vehicle and the original charging socket of the vehicle;

[0007] Determining that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0008] The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0009] Determining that the vehicle is in the charging state, cutting off the connection between the AC charger and the vehicle communication port, and controlling the main control to send a signal to the vehicle so that the vehicle is maintained in the charging state;

[0010] Control the DC charging pile to charge the battery of the vehicle.

[0011] According to an embodiment of the present application, after the control host sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state, and before determining that the vehicle is in the charging state, the method includes:

[0012] Determining that the AC charger is not turned on, and controlling the main control to send a start signal to the AC charger again;

[0013] Determining that the AC charger is in an off state;

[0014] Controlling the connection between the AC charger and the original vehicle charging socket;

[0015] Controlling the conversion of the DC power output by the DC charging pile into AC power, and then transmitting the AC power to the AC charger;

[0016] Determining that the AC charger is in an on state;

[0017] Control to disconnect the AC charger and the original vehicle charging socket.

[0018] According to one embodiment of the present application, controlling the DC charging pile to charge the battery of the vehicle includes:

[0019] Controlling the first switch assembly between the battery and the original vehicle charging socket to disconnect;

[0020] Controlling the DC charging pile to perform insulation detection;

[0021] Confirm that the insulation test has passed;

[0022] Controlling the high voltage module to output a starting voltage to the DC charging pile;

[0023] Determining that the DC charging pile handshake is successful;

[0024] Controlling the high-voltage module to be disconnected, and controlling the first switch component to be closed;

[0025] The DC charging pile is controlled to start outputting voltage to the original vehicle charging socket.

[0026] According to one embodiment of the present application, before controlling the DC charging pile to perform insulation detection, the process includes:

[0027] Control the second switch component between the high-voltage module and the DC charging pile to disconnect.

[0028] According to one embodiment of the present application, determining whether the vehicle is in a DC charging mode includes:

[0029] Determine whether the adapter is inserted into the original vehicle charging socket;

[0030] If so, determining that the vehicle is in a DC charging mode;

[0031] If not, it is determined that the vehicle is in AC charging mode.

[0032] According to one embodiment of the present application, after determining that the vehicle is in a DC charging mode, the method includes:

[0033] Determining whether data of the DC charging pile is detected within a preset time period;

[0034] If so, determining that the vehicle is in a DC charging mode;

[0035] If not, it is determined that the vehicle is in AC charging mode.

[0036] According to an embodiment of the present application, after controlling the DC charging pile to charge the battery of the vehicle, the method further includes:

[0037] Determining that the DC charging pile fails to charge the battery;

[0038] Controlling the connection between the AC charger and the original vehicle charging socket;

[0039] Controlling the connection between the AC charger and the vehicle communication port;

[0040] The AC charger is controlled to convert the DC power into AC power, so as to charge the battery with the AC power.

[0041] According to the second aspect of the present application, the electric vehicle charging device includes:

[0042] A judging module, used to judge whether the vehicle is in a DC charging mode, and if so, cut off the connection between the AC charger of the vehicle and the original charging socket of the vehicle;

[0043] A determination module, used to determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0044] A wake-up module, used to control the main control to send a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0045] A first control module, used for determining that the vehicle is in the charging state, cutting off the connection between the AC charger and the vehicle communication port, and controlling the main control to send a signal to the vehicle so that the vehicle is maintained in the charging state;

[0046] The second control module is used to control the DC charging pile to charge the battery of the vehicle.

[0047] The vehicle according to the third aspect of the present application includes a vehicle body, in which a control component is disposed, and the control component is used to execute the above-mentioned electric vehicle charging method.

[0048] According to the electronic device of the fourth aspect embodiment of the present application, the electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the above-mentioned electric vehicle charging method when executing the computer program.

[0049] According to the non-transitory computer-readable storage medium of the fifth aspect embodiment of the present application, the non-transitory computer-readable storage medium includes a computer program, and when the computer program is executed by the processor, the above-mentioned electric vehicle charging method is implemented.

[0050] According to the computer program product of the sixth aspect of the present application, the computer program product includes a computer program, and when the computer program is executed by the processor, the above-mentioned electric vehicle charging method is implemented.

[0051] According to the electric vehicle charging method, device, vehicle and electronic device of the embodiment of the present application, when the server determines that the vehicle in the DC charging mode does not match the charging protocol of the DC charging pile, the server controls the main control to simulate the AC charging signal and send it to the AC charger, that is, the AC charger is awakened by the main control. When the vehicle detects that the AC charger is in the on state, it will enter the charging state. At this time, the server controls to cut off the communication between the AC charger and the vehicle to avoid the vehicle finding that the AC charger is not actually working and switching back to the non-charging state. At the same time, the main control sends an analog signal to the vehicle to keep the vehicle in the charging state, which is convenient for the DC charging pile to charge the battery with DC. Furthermore, the present application can directly use the DC charging pile to charge the hybrid vehicle, so that the hybrid vehicle can be directly charged by the AC charging pile or the DC charging pile, and the vehicle can be in the charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0052] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a schematic diagram of the flow of the electric vehicle charging method provided by the present invention;

[0055] Figure 2It is a structural schematic diagram of the electric vehicle charging device provided by the present invention;

[0056] Figure 3 is a schematic diagram of the structure of an electronic device provided by the present invention;

[0057] Figure 4 is a schematic diagram of a low-voltage DC charging system provided in an embodiment of the present application;

[0058] Figure 5 It is a schematic diagram of the AC / DC charging switching system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] The embodiments of the present application provide embodiments of a method for charging an electric vehicle. It should be noted that although a logical sequence is shown in the flow chart, under certain data, the steps shown or described may be completed in an order different from that shown here.

[0061] Combine the following Figures 1 to 5 The present invention describes an electric vehicle charging method, an electric vehicle charging device, a vehicle and an electronic device.

[0062] Before introducing the electric vehicle charging method of the embodiment of the present application, the application scenario of the electric vehicle charging method is first explained. The electric vehicle charging method of the present application can be applied to smart terminals such as smart phones, tablets and computers connected to charging piles or vehicles, and can also be applied to servers connected to charging piles or vehicles. The present application is not specifically limited here, as long as it can carry and implement the electric vehicle charging method of the present application.

[0063] The following description will be given by applying the electric vehicle charging method to the server side, but it should be understood that the electric vehicle charging method is not limited to being applied only to the server side.

[0064] The server side is, for example, a processor side or a similar control element on an electric vehicle or a charging pile. The server side can also be a server independent of the electric vehicle or the charging pile. The server side is only illustrated here without specific limitation.

[0065] According to the embodiments of the present application, Figure 1 As shown, the electric vehicle charging method is applied to a hybrid vehicle, comprising:

[0066] Step 101, determining whether the vehicle is in a DC charging mode, and if so, disconnecting the AC charger of the vehicle from the original charging socket of the vehicle.

[0067] The server first determines whether the vehicle is in DC charging mode. When it is determined that the vehicle is in DC charging mode, the server controls the connection between the AC charger and the original vehicle charging socket to be cut off, and the original vehicle charging socket and the battery are connected, so that the DC charging pile can be used to perform DC charging on the battery. When it is determined that the vehicle is not in DC charging mode, it means that the vehicle is in AC charging mode, then the server controls the connection between the AC charger and the original vehicle charging socket, and the original vehicle charging socket and the battery are cut off, so that the AC charging pile can be used to perform AC charging on the battery.

[0068] Exemplarily, the server can determine the charging mode of the vehicle by obtaining the insertion information of the adapter. When the adapter is inserted into the original vehicle charging socket, it means that the vehicle needs to be charged with DC, and the vehicle is judged to be in DC charging mode. When the adapter is not inserted into the original vehicle charging socket, the vehicle can only be charged with AC, and the vehicle is judged to be in AC charging mode.

[0069] When the vehicle is in AC charging mode, the server controls the AC charger to connect to the original vehicle charging socket, and then inserts the AC charging gun into the original vehicle charging socket to realize AC charging of the vehicle.

[0070] Step 102: Determine whether the charging protocol of the DC charging pile does not match the charging protocol of the vehicle.

[0071] The server side obtains the charging protocol of the DC charging pile and the charging protocol of the vehicle respectively, and then determines whether the charging protocol of the DC charging pile and the charging protocol of the vehicle match. When the charging protocol of the DC charging pile and the charging protocol of the vehicle match, it means that the current DC charging pile can perform DC charging on the vehicle. When the charging protocol of the DC charging pile does not match the charging protocol of the vehicle, it means that the current DC charging pile cannot perform DC charging on the vehicle.

[0072] Step 103 : The main control sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state.

[0073] When the server determines that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle, it means that the AC charger is not turned on and the vehicle is also in a non-charging state. This step controls the main control to send a wake-up signal to the AC charger to wake up the AC charger. After the AC charger is turned on, it will communicate with the vehicle communication port, so that the vehicle thinks that the AC charger is turned on, and then the vehicle enters the charging state.

[0074] Step 104 , determining that the vehicle is in a charging state, disconnecting the AC charger from the vehicle communication port, and controlling the main control to send a signal to the vehicle so that the vehicle remains in a charging state.

[0075] After the server determines that the vehicle is in the charging state, it will promptly cut off the connection between the AC charger and the vehicle's communication port to prevent the AC charger from continuing to communicate with the vehicle. Instead, the main control sends a communication signal to the vehicle, making the vehicle think that the AC charger is still on, and the vehicle will remain in the charging state.

[0076] It is understandable that, because the AC charger is awakened by the main control, the vehicle is not in AC charging mode at this time, so no current will pass through the AC charger, that is, the AC charger will not really work. At this time, if the communication between the AC charger and the vehicle is not cut off, the AC charger may send a signal to the vehicle to put the vehicle in a non-charging state. Therefore, after the vehicle is in the charging state, the control cuts off the communication between the AC charger and the vehicle, and the main control sends a virtual signal to the vehicle to simulate that the AC charger is in the on state, so that the vehicle remains in the charging state.

[0077] Step 105, controlling the DC charging pile to charge the battery of the vehicle.

[0078] The server determines that the vehicle is in a charging state, indicating that the DC charging pile can charge the vehicle's battery at this time, and then controls the DC charging pile to start outputting voltage, and transmits it to the battery through the original vehicle charging socket to realize DC charging of the battery.

[0079] In the electric vehicle charging method of the embodiment of the present application, when the server determines that the vehicle in the DC charging mode does not match the charging protocol of the DC charging pile, the server controls the main control to simulate the AC charging signal and send it to the AC charger, that is, the AC charger is awakened by the main control. When the vehicle detects that the AC charger is in the on state, it will enter the charging state. At this time, the server controls to cut off the communication between the AC charger and the vehicle to avoid the vehicle finding that the AC charger is not actually working and switching back to the non-charging state. At the same time, the main control sends an analog signal to the vehicle to keep the vehicle in the charging state, which is convenient for the DC charging pile to charge the battery with DC. Furthermore, the present application can directly use the DC charging pile to charge the hybrid vehicle, so that the hybrid vehicle can be directly charged by the AC charging pile or the DC charging pile, and the vehicle can be in the charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0080] In one embodiment of the present application, after the control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state, and before determining that the vehicle is in a charging state, the method includes:

[0081] Determine that the AC charger is not turned on, and control the main controller to send a start signal to the AC charger again;

[0082] Make sure the AC charger is not turned on;

[0083] Control the connection between the AC charger and the original vehicle charging socket;

[0084] Controlling the conversion of the DC power output by the DC charging pile into AC power, and transmitting the AC power to the AC charger;

[0085] Make sure the AC charger is turned on;

[0086] Control and cut off the AC charger and the original vehicle charging socket.

[0087] Specifically, after sending a signal to the AC charger, the server side will obtain the status of the AC charger. When the AC charger is successfully turned on, the server side determines that the vehicle is in a charging state. If the server side determines that the AC charger has not been successfully turned on, the server side will control the main control to send a start signal to the AC charger again, that is, try to start the AC charger again. If the AC charger still cannot be turned on, the server side will first control the AC charger to be connected to the original vehicle charging socket, that is, the DC charging pile is connected to the AC charger, and then the server side controls the conversion of the DC power output by the DC charging pile, and then transmits the DC power to the AC charger after converting the DC power to AC power. At the same time, the main control can be used to send an analog signal of the AC charging pile to the AC charger to ensure that the AC charger can be turned on, so that the vehicle will be in a charging state. When it is determined that the vehicle is successfully turned on, the server side controls the disconnection of the AC charger and the original vehicle charging socket again, so as to facilitate the subsequent use of the DC charger to perform DC charging on the battery.

[0088] Exemplarily, the output of the DC charging pile can be converted by an AC-DC conversion module. When the server side cannot control the AC charger to be in the on state, the server side will control the AC-DC conversion module to be enabled to convert the output of the DC charging pile.

[0089] In one embodiment of the present application, controlling a DC charging pile to charge a battery of a vehicle includes:

[0090] Control the first switch assembly between the battery and the original vehicle charging socket to disconnect;

[0091] Control the DC charging pile to perform insulation testing;

[0092] Confirm that the insulation test has passed;

[0093] Control the high-voltage module to output the starting voltage to the DC charging pile;

[0094] Confirm that the DC charging pile handshake is successful;

[0095] Control the high-voltage module to be disconnected, and control the first switch component to be closed;

[0096] Control the DC charging pile to start outputting voltage to the original vehicle charging socket.

[0097] Specifically, when the server controls the DC charging pile to charge the battery of the vehicle, since a first switch component is connected between the battery and the original vehicle charging socket, the server will control the first switch component to disconnect so that the positive charging port and the negative charging port of the battery are disconnected, and then the server controls the DC charging pile to perform insulation detection, thereby ensuring that the insulation detection passes. The server obtains the result of the insulation detection. When it is determined that the insulation detection passes, the server will control the high-voltage module to output a starting voltage to the DC charging pile. The starting voltage is, for example, 300V, and avoids directly using the battery voltage to start the DC charging pile, ensuring that the voltage delivered to the DC charging pile meets the requirements of the DC charging pile, so as to ensure that the DC charging pile and the vehicle can shake hands successfully. After determining that the DC charging pile has successfully shaken hands, the server will first control the high-voltage module to disconnect so that the high-voltage module stops outputting voltage to the DC charging pile, and will also control the first switch component to close so that the battery and the original vehicle charging socket are connected, so that DC power can charge the battery through the original vehicle charging socket. Finally, the server controls the DC charging pile to start outputting voltage to the original vehicle charging socket to achieve DC charging of the battery.

[0098] In one embodiment of the present application, before controlling the DC charging pile to perform insulation detection, the process includes:

[0099] Control the second switch component between the high-voltage module and the DC charging pile to disconnect.

[0100] Specifically, a second switch component is connected between the high-voltage module and the DC charging pile to control the on and off between the high-voltage module and the DC charging pile. Before controlling the DC charging pile to perform insulation detection, the server will first control the second switch component to disconnect to ensure that the high-voltage module and the DC charging pile are disconnected, thereby avoiding the high-voltage module from affecting the insulation detection.

[0101] In one embodiment of the present application, determining whether the vehicle is in a DC charging mode includes:

[0102] Determine whether the adapter is inserted into the original vehicle charging socket;

[0103] If so, it is determined that the vehicle is in DC charging mode;

[0104] If not, it is determined that the vehicle is in AC charging mode.

[0105] Specifically, when the server determines whether the vehicle is in DC charging mode, it can first determine whether the adapter is inserted into the original vehicle charging socket, because the adapter is used to connect the DC charging gun and the original vehicle charging socket. If the adapter is inserted into the original vehicle charging socket, the server can determine that the vehicle is in DC charging mode, because at this time it can only be connected to a DC charging pile. If the adapter is not inserted into the original vehicle charging socket, the server can determine that the vehicle is in AC charging mode, because at this time the vehicle cannot be connected to a DC charging pile and can only be connected to an AC charging pile.

[0106] In one embodiment of the present application, after determining that the vehicle is in a DC charging mode, the method includes:

[0107] Determine whether the data of the DC charging pile is detected within a preset time;

[0108] If so, it is determined that the vehicle is in DC charging mode;

[0109] If not, it is determined that the vehicle is in AC charging mode.

[0110] Specifically, after the server determines that the adapter is inserted into the original vehicle charging socket and then determines that the vehicle is in DC charging mode, the server will determine whether the vehicle receives data from the DC charging pile within a preset time. If the vehicle receives data from the DC charging pile within the preset time, the server determines that the vehicle is in DC charging mode. If the vehicle does not receive data from the DC charging pile within the preset time, it means that the vehicle cannot enter the DC charging mode, and the server determines that the vehicle is in AC charging mode.

[0111] It is understandable that after determining that the vehicle has not received data from the DC charging pile within the preset time, and the server determines that the vehicle is in AC charging mode, if the server again obtains the signal that the adapter is inserted into the original vehicle charging socket, the server will control the vehicle to be in DC charging mode again.

[0112] In one embodiment of the present application, after determining that the vehicle is in the AC charging mode, the method includes:

[0113] Control the AC charger to connect to the original vehicle charging socket.

[0114] Specifically, after determining that the vehicle is in AC charging mode, the server will control the AC charger to be connected to the original vehicle charging socket and control the battery to be disconnected from the original vehicle charging socket, so that the AC charging gun can be subsequently inserted into the original vehicle charging socket and the battery can be AC ​​charged through the AC charger.

[0115] In one embodiment of the present application, after controlling the DC charging pile to charge the battery of the vehicle, the method includes:

[0116] Determine that the vehicle is in a non-charging state;

[0117] Determine that the vehicle obtains the signal sent by the AC charger;

[0118] Control the vehicle to shield the vehicle communication port.

[0119] Specifically, after the server controls the DC charging pile to charge the battery, the server will obtain the vehicle's status. If the server determines that the vehicle is in a non-charging state, it means that the charging is disconnected. The server will then determine whether the vehicle can still obtain the signal sent by the AC charger. If it is determined that the vehicle can still obtain the signal sent by the AC charger, it means that the connection between the AC charger and the vehicle communication port is not disconnected. The server will then control the vehicle to shield the vehicle communication port to ensure that the vehicle does not receive the signal sent by the AC charger, so that the vehicle can remain in the charging state.

[0120] Exemplarily, the server may detect the AC charger and the vehicle communication port, and then determine whether the AC charger is still sending a signal to the vehicle communication port.

[0121] In one embodiment of the present application, after controlling the DC charging pile to charge the battery of the vehicle, the method includes:

[0122] Determine that the vehicle is in a non-charging state;

[0123] Controlling the connection between the AC charger and the vehicle communication port;

[0124] The control signal changing module changes the signal sent by the AC charger to the vehicle communication port.

[0125] Specifically, after the server controls the DC charging pile to charge the battery, the server will obtain the status of the vehicle. If the server determines that the vehicle is in a non-charging state, it means that the charging is disconnected, indicating that the AC charger is still sending signals to the vehicle communication port, causing the vehicle to exit the charging state. The server then controls the connection between the AC charger and the vehicle communication port to ensure that the AC charger and the vehicle communication port are connected. Then the server first passes the signal sent by the AC charger to the vehicle communication port through the signal change module, and changes the signal sent by the AC charger to the vehicle communication port through the signal change module, so that the vehicle is maintained in the charging state, thereby avoiding the vehicle exiting the charging state due to the inability to disconnect the connection between the AC charger and the vehicle communication port.

[0126] Exemplarily, a signal changing module may be connected between the vehicle communication port and the AC charger, and a switch element may be provided, one end of the switch element being connected to one end of the signal changing module, and the other end of the switch element being connected to the other end of the signal changing module. When there is no need to change the signal transmitted from the AC charger to the vehicle communication port, the server side controls the switch element to close; when there is a need to change the signal transmitted from the AC charger to the vehicle communication port, the server side controls the switch element to open.

[0127] In one embodiment of the present application, after controlling the DC charging pile to charge the battery of the vehicle, the method includes:

[0128] Determine that the vehicle is in a non-charging state;

[0129] Determine the charging protocols supported by the vehicle;

[0130] Based on the charging protocol supported by the vehicle, the control protocol conversion module converts the charging protocol of the DC charging pile.

[0131] It is understandable that after controlling the DC charging pile to charge the battery, the server side will obtain the status of the vehicle. If it is found that the vehicle is in a non-charging state again, it means that the vehicle needs to be put into a charging state again. At this time, the server side will determine the charging protocol supported by the vehicle based on the vehicle model, and then the server side controls the protocol conversion module to convert the charging protocol of the DC charging pile based on the charging protocol supported by the vehicle, so that the DC charging pile interacts with the vehicle using the converted charging protocol, so that the vehicle can enter the charging state.

[0132] It can be understood that the protocol conversion module is, for example, a data storage device, in which charging protocols corresponding to various vehicle models can be pre-stored, so that a charging protocol that can match the vehicle charging line protocol can be called out from the data storage device, so that the vehicle can smoothly enter the charging state.

[0133] In one embodiment of the present application, after controlling the DC charging pile to charge the battery of the vehicle, the method further comprises:

[0134] Determining that the DC charging pile fails to charge the battery;

[0135] Controlling the connection between the AC charger and the original vehicle charging socket;

[0136] Controlling the connection between the AC charger and the vehicle communication port;

[0137] The AC charger is controlled to convert the DC power into AC power, so as to charge the battery with the AC power.

[0138] Specifically, after the server controls the DC charging pile to charge the battery of the vehicle, it will monitor whether the DC charging pile successfully charges the battery. When the server determines that the DC charging pile has not successfully charged the battery, it means that the DC charging pile cannot be used to directly charge the battery at this time. The server then controls the AC charger to be connected to the original vehicle charging socket, controls the AC charger to be connected to the vehicle communication port, and controls the original vehicle charging socket to be disconnected from the battery, so that the DC charging pile transmits the voltage to the AC charger through the original vehicle charging socket. The server then controls the AC charger to convert DC power into AC power, and then uses AC power to charge the battery. In this embodiment, when the DC charging pile cannot be used to directly charge the battery, the AC charger can be used to charge the battery as a backup plan. Although the use of the AC charger requires the conversion of DC power, which is more troublesome, it can ensure that the battery can be charged.

[0139] Exemplarily, when the server side determines whether the DC charging pile successfully charges the battery, it can obtain the power consumed by the vehicle within a preset time after the DC charging pile is controlled to charge the battery of the vehicle, and obtain the initial power of the battery and the actual power of the battery after the preset time. Based on the consumed power, initial power and actual power, it can be determined whether the DC charging pile successfully charges the battery. For example, if the value obtained by subtracting the consumed power from the actual power is greater than the initial power, it means that the DC charging pile has successfully charged the battery. If the value obtained by subtracting the consumed power from the actual power is less than the initial power, it means that the DC charging pile has not successfully charged the battery. Of course, the server side can also use any other suitable method to determine whether the DC charging pile successfully charges the battery.

[0140] According to the embodiment of the second aspect of the present application, the electric vehicle charging device and the electric vehicle charging method correspond to each other. Figure 2 As shown, the electric vehicle charging device includes:

[0141] The judging module 201 is used to judge whether the vehicle is in a DC charging mode, and if so, cut off the connection between the AC charger of the vehicle and the original charging socket of the vehicle;

[0142] A determination module 202 is used to determine whether the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0143] A wake-up module 203 is used to control the main control to send a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0144] The first control module 204 is used to determine that the vehicle is in a charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle is maintained in a charging state;

[0145] The second control module 205 is used to control the DC charging pile to charge the battery of the vehicle.

[0146] According to the electric vehicle charging device of the embodiment of the present application, a DC charging pile can be directly used to charge a hybrid vehicle, so that the hybrid vehicle can be directly charged using both an AC charging pile and a DC charging pile, and the vehicle can be put into a charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0147] In one embodiment of the present application, the electric vehicle charging device is also used for:

[0148] Determine that the AC charger is not turned on, and control the main controller to send a start signal to the AC charger again;

[0149] Make sure the AC charger is not turned on;

[0150] Control the connection between the AC charger and the original vehicle charging socket;

[0151] Controlling the conversion of the DC power output by the DC charging pile into AC power, and transmitting the AC power to the AC charger;

[0152] Make sure the AC charger is turned on;

[0153] Control and cut off the AC charger and the original vehicle charging socket.

[0154] According to an embodiment of the third aspect of the present application, a vehicle includes a vehicle body, a control component is disposed in the vehicle body, and the control component is used to execute an electric vehicle charging method, the method including:

[0155] Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the vehicle's AC charger and the vehicle's original charging socket;

[0156] Determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0157] The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0158] Determine that the vehicle is in a charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle remains in a charging state;

[0159] Control the DC charging pile to charge the vehicle's battery.

[0160] In one embodiment of the present application, the vehicle includes a low voltage DC charging system, such as Figure 4As shown, the low voltage DC charging system includes:

[0161] Original car charging socket 1;

[0162] The main control 2 is electrically connected to the original vehicle charging socket 1;

[0163] The battery 3 is connected to the charging port of the original vehicle charging socket 1 through the first switch assembly 4;

[0164] The high voltage module 5 is connected to the main control 2 and is used to output a starting voltage to the DC charging pile;

[0165] The voltage sampling module 6 is connected to the main control 2 , and the voltage sampling module 6 is suitable for detecting the output voltage of the original vehicle charging socket 1 and the voltage of the battery 3 .

[0166] According to the low-voltage DC charging system of the embodiment of the present application, a DC charging gun is inserted into the original vehicle charging socket 1 of the electric vehicle. When the DC charging pile detects that the DC charging gun has been inserted, the main control 2 controls the first switch component 4 to be disconnected and the high-voltage module 5 to be disconnected. The first switch component 4 is disconnected to disconnect the positive and negative poles of the battery 3, so that when the DC charging pile performs insulation detection on the battery 3, the detected voltage is 0, ensuring that the insulation detection can pass smoothly. At the same time, the high-voltage module 5 is disconnected, which can avoid the high-voltage module 5 sending voltage to the DC charging pile during insulation detection and affecting the insulation detection, further ensuring that the insulation detection can pass smoothly. Then the main control 2 controls the high-voltage module 5 to close, so that the high-voltage module 5 outputs a starting voltage to the DC charging pile for detection by the DC charging pile, so that the DC charging pile can be successfully started, and then the voltage sampling module 6 detects and samples the voltage transmitted by the DC charging pile to the original vehicle charging socket 1, and samples the voltage of the battery 3 at the same time. When the difference between the output voltage of the original vehicle charging socket 1 and the voltage of the battery 3 is within the preset value, the main control 2 controls the first switch component 4 to be closed, and the high-voltage module 5 to be disconnected, so that the DC charging pile can charge the battery 3. Furthermore, the present application realizes the use of the high-voltage module 5 to output a high voltage to the DC charging pile to directly wake up the DC charging pile, and the DC charging pile can be used to charge the battery 3, and the battery 3 can be effectively disconnected through the first switch component 4 to ensure that the insulation test can pass.

[0167] Exemplarily, the starting voltage is, for example, 300V.

[0168] Exemplarily, a step-down module can be set between the battery 3 and the original vehicle charging socket 1, and the voltage transmitted from the DC charging pile to the original vehicle charging socket 1 is stepped down by the step-down module, thereby converting the voltage into a battery that meets the charging requirements of the battery 3.

[0169] It should be noted that the main control 2 can also interact with the DC charging pile to control the output voltage of the DC charging pile to be reduced to meet the charging requirements of the battery 3, and then the DC charging pile can be directly used to charge the battery 3.

[0170] In one embodiment of the present application, the low-voltage DC charging system includes a second switch component, the output end of the high-voltage module 5 is connected to the second switch component, and the second switch component is suitable for controlling the on-off between the high-voltage module 5 and the DC charging pile.

[0171] It is understandable that the high-voltage module 5 is used to output a starting voltage to the DC charging pile, so that the DC charging pile is in a starting state after detecting the starting voltage. Before outputting the starting voltage to the DC charging pile, the DC charging pile will first perform an insulation test on the battery 3. At this time, the main control 2 controls the second switch component to disconnect, ensuring that the high-voltage module 5 and the DC charging pile are disconnected, and the high-voltage module 5 will not transmit voltage to the DC charging pile, ensuring that the high-voltage module 5 will not affect the insulation test. When the insulation test is completed and the DC charging pile needs to be started, the second switch component is controlled to close so that the high-voltage module 5 can transmit voltage to the DC charging pile.

[0172] Exemplarily, the second switch component includes a first relay, one end of the first relay is connected to the output end of the high-voltage module 5, and the other end of the first relay is connected to the DC charging pile. By controlling the opening and closing of the first relay, the on and off between the high-voltage module 5 and the DC charging pile can be controlled.

[0173] In one embodiment of the present application, Figure 4 As shown, the first switch assembly 4 includes a first contactor and a second contactor, the first contactor connects the positive charging port of the original vehicle charging socket 1 and the positive charging port of the battery 3, and the second contactor connects the negative charging port of the original vehicle charging socket 1 and the negative charging port of the battery 3.

[0174] It can be understood that by controlling the first contactor and the second contactor to disconnect, the positive charging port of the battery 3 and the positive charging port of the original vehicle charging socket 1 can be disconnected, and the negative charging port of the battery 3 and the negative charging port of the original vehicle charging socket 1 can be disconnected, thereby ensuring that the positive charging port of the battery 3 and the negative charging port of the battery 3 are disconnected, so that when the DC charging pile performs insulation detection on the battery 3, the detected voltage is 0, ensuring that the insulation detection can pass smoothly.

[0175] In one embodiment of the present application, the voltage sampling module 6 includes a first voltage sampling component and a second voltage sampling component. The first voltage sampling component is connected to the charging port of the original vehicle charging socket 1, and the first voltage sampling component is suitable for detecting the voltage output by the original vehicle charging socket 1. The second voltage sampling component is connected to the battery 3, and the second voltage sampling component is suitable for detecting the voltage of the battery 3.

[0176] It can be understood that the first voltage sampling component and the second voltage sampling component transmit the detected data to the main control 2, so that the main control 2 can compare the output voltage of the original vehicle charging socket 1 and the voltage of the battery 3. Only when the voltage difference between the two is less than the preset value, the main control 2 will control the first switch component 4 to close, so that the DC charging pile can charge the battery 3, and can avoid the large current generated by the excessive voltage difference from damaging the low-voltage DC charging system.

[0177] Exemplarily, the second voltage sampling component is, for example, a voltage sampling circuit or a voltage detection sensor.

[0178] In one embodiment of the present application, Figure 4 As shown, the low-voltage charging system includes a charging pile gun insertion detection module. Based on the detection data of the charging pile gun insertion detection module, the DC charging pile can determine whether the DC charging gun has been inserted into the original vehicle charging socket 1. When it is determined that the DC charging gun has been inserted into the original vehicle charging socket 1, the auxiliary power supply outputs a 12V voltage to the main control 2 to wake up the main control 2.

[0179] In one embodiment of the present application, Figure 4 As shown, the low-voltage DC charging system includes a main control gun plug detection module, which is connected to the original vehicle charging socket 1 and is suitable for detecting whether the original vehicle charging socket 1 is connected to the DC charging gun.

[0180] It is understandable that after the main control 2 is connected to the voltage input by the auxiliary power supply, it will obtain the detection result of the main control plug detection module, and then determine whether the DC charging gun has been inserted into the original vehicle charging socket 1. In other words, the setting of the main control plug detection module facilitates the main control 2 to determine whether the DC charging gun has been inserted into the original vehicle charging socket 1.

[0181] In one embodiment of the present application, the low-voltage DC charging system includes a DC CAN communication module, which connects the battery 3 and the main control 2 , and is suitable for transmitting information of the battery 3 to the main control 2 .

[0182] It can be understood that the DC CAN communication module can send information of battery 3, such as battery 3 SOC, battery 3 temperature, battery 3 voltage and other information, to the main control 2, so that the main control 2 can control the charging process according to the information of battery 3. For example, the information of battery 3 can be sent to the DC charging pile, and it can also be determined whether there is any abnormality in charging based on the information of battery 3.

[0183] According to an embodiment of the second aspect of the present application, Figure 5 As shown, the vehicle also includes an AC / DC charging switching system, and the AC / DC charging switching system includes the above-mentioned low-voltage DC charging system.

[0184] According to the AC / DC charging switching system of the embodiment of the present application, it has a low-voltage DC charging system, which realizes the use of the high-voltage module 5 to output a high voltage to the DC charging pile to directly wake up the DC charging pile. The DC charging pile can be used to charge the battery 3, and the battery 3 can be effectively disconnected through the first switch component 4 to ensure that the insulation test can pass.

[0185] It is understandable that the AC / DC charging system can switch between the DC charging mode and the AC charging mode. The switching between the DC charging mode and the AC charging mode can be switched based on the insertion of the adapter, that is, when the adapter is inserted into the original vehicle charging socket 1, the AC / DC charging system can be switched to the DC charging mode, and when the adapter is not inserted into the original vehicle charging socket 1, the AC / DC charging system can always be in the AC charging mode.

[0186] In one embodiment of the present application, Figure 5 As shown, the AC / DC charging switching system includes:

[0187] An AC charger is connected to the main control 2, and the AC charger is connected to the battery 3;

[0188] The third switch component, the first output end of the third switch component is connected to the AC charger, the second output end of the third switch component is connected to the battery 3, and the input end of the third switch component is connected to the charging port of the original vehicle charging socket 1.

[0189] It is understandable that when the AC / DC charging switching system is in the AC charging mode, that is, when the AC charging gun is inserted into the original vehicle charging socket 1, the first output end and the input end of the third switch component are controlled to be connected, so that the AC charging gun can be connected to the AC charger, and the AC charging gun can transmit AC power to the AC charger, thereby realizing the use of the AC charger to charge the battery 3. When the AC / DC charging switching system is in the DC charging mode, that is, when the DC charging gun is connected to the original vehicle charging socket 1 through the adapter, the second output end and the input end of the third switch component are controlled to be connected, so that the DC charging gun is connected to the battery 3, and the DC charging gun can directly charge the battery 3, thereby realizing the switching between the DC charging mode and the AC charging mode, and the battery 3 can be charged with both DC and AC.

[0190] In one embodiment of the present application, the third switch assembly includes a first magnetic latching relay and a second magnetic latching relay, the first output end of the first magnetic latching relay is connected to the AC charger, the second output end of the first magnetic latching relay is connected to the battery 3, the input end of the first magnetic latching relay is connected to the positive input end of the original vehicle charging socket 1, the first output end of the second magnetic latching relay is connected to the AC charger, the second output end of the second magnetic latching relay is connected to the battery 3, and the input end of the second magnetic latching relay is connected to the negative input end of the original vehicle charging socket 1.

[0191] It can be understood that when in AC charging mode, the first output terminal and input terminal of the first magnetic latching relay are connected, and the first output terminal and input terminal of the second magnetic latching relay are connected, that is, the positive input terminal and negative input terminal of the original vehicle charging socket 1 are connected to the AC charger at the same time, and the charging process from the AC charging gun to the AC charger and then to the battery 3 can be realized by inserting the AC charging gun into the original vehicle charging socket 1. When in DC charging mode, that is, when the main control 2 detects that the adapter is inserted into the original vehicle charging socket 1, the second output terminal and input terminal of the first magnetic latching relay are connected, and the second output terminal and input terminal of the second magnetic latching relay are connected, that is, the positive input terminal and negative input terminal of the original vehicle charging socket 1 are connected to the battery 3 at the same time, so that the DC charging gun inserted into the original vehicle charging socket 1 can perform DC charging on the battery 3.

[0192] In one embodiment of the present application, Figure 5 As shown, the AC / DC charging switching system includes a fourth switch component, which connects the AC charger and the original vehicle communication port. The fourth switch component is suitable for switching the AC charger and the original vehicle communication port on and off. The main control 2 is suitable for controlling the AC charger to be in a charging state, and the main control 2 is connected to the original vehicle communication port.

[0193] It is understandable that during the actual DC charging process of an electric vehicle, if there is no original vehicle charging protocol, the charging protocol needs to be matched, which is time-consuming and labor-intensive.

[0194] This application sends a corresponding signal to the original vehicle AC charger through the main control 2 to wake up the AC charger, so that the vehicle is in a charging state. Since it is a DC charging mode at this time, the current will not really pass through the AC charger. When the AC charger has not been working, the AC charger will send a CAN signal to the vehicle, so that the vehicle is in a non-charging state again. Therefore, after waking up the AC charger, this application will first control the fourth switch component to disconnect to cut off the communication between the AC charger and the vehicle, and then the main control 2 will send a CAN signal to the vehicle, so that the vehicle is always in a charging state, so as to facilitate DC charging of the battery 3, thereby improving the convenience of charging the electric vehicle. This application can directly use a DC charging pile to charge a hybrid vehicle, so that the hybrid vehicle can be directly charged using both an AC charging pile and a DC charging pile, and the vehicle can be in a charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0195] In an embodiment of the present application, the fourth switch assembly includes a second relay, the second relay is connected to the main control 2, and the second relay is connected to the AC charger and the original vehicle communication port.

[0196] It is understandable that the main control 2 can control the switch of the second relay, and then control the on-off between the AC charger and the original vehicle communication port. When the vehicle needs to be in a charging state, the main control 2 controls the second relay to close, and at the same time, the main control 2 sends a corresponding signal to the AC charger to wake up the AC charger. After the AC charger is awakened, it will send a CAN signal to the original vehicle communication port, so that the vehicle is in a charging state. Then the main control 2 controls the second relay to disconnect, and at the same time, the main control 2 sends a CAN signal to the original vehicle communication port instead of the AC charger, so that the vehicle thinks that the AC charger is always in working state, and the vehicle will not exit the charging state, and then the battery 3 can be charged with DC.

[0197] In one embodiment of the present application, the AC / DC charging switching system includes a fifth switch component, a first output end of the fifth switch component is connected to the AC charger, a second output end of the fifth switch component is connected to the main control 2, and an input end of the fifth switch component is connected to the CAN communication port of the original vehicle charging socket 1.

[0198] It is understandable that the fifth switch assembly can connect the first output end and the input end, or the second output end and the input end, that is, it can control whether the CAN communication port of the original vehicle charging socket 1 is connected to the AC charging or the main control 2. When in the AC charging mode, the first output end and the input end of the fifth switch assembly are controlled to be connected, so that the AC charging pile connected to the original vehicle charging socket 1 can communicate with the AC charger through CAN; when in the DC charging mode, the second output end and the input end of the fifth switch assembly are controlled to be connected, so that the DC charging pile connected to the original vehicle charging socket 1 can communicate with the main control 2 through CAN.

[0199] Exemplarily, the fifth switch component is, for example, a relay.

[0200] According to the embodiment of the present application, a vehicle with a control component can realize that when the charging protocols of the DC charging pile and the vehicle do not match, the vehicle can be put into a charging state without matching the vehicle charging protocol, so that the DC charging pile can charge the vehicle, ensuring that the vehicle can be charged normally.

[0201] According to an embodiment of the fourth aspect of the present application, Figure 3 As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330 and a communication bus 340, wherein the processor 310, the communication interface 320 and the memory 330 communicate with each other through the communication bus 340. The processor 310 may call the logic instructions in the memory 330 to execute the electric vehicle charging method, which includes:

[0202] Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the vehicle's AC charger and the vehicle's original charging socket;

[0203] Determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0204] The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0205] Determine that the vehicle is in a charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle remains in a charging state;

[0206] Control the DC charging pile to charge the vehicle's battery.

[0207] In addition, the logic instructions in the above-mentioned memory 330 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0208] On the other hand, the present application also provides a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the electric vehicle charging method provided by the above methods, the method includes:

[0209] Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the vehicle's AC charger and the vehicle's original charging socket;

[0210] Determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0211] The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0212] Determine that the vehicle is in a charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle remains in a charging state;

[0213] Control the DC charging pile to charge the vehicle's battery.

[0214] According to an embodiment of the fifth aspect of the present application, the present application also includes a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it is implemented to perform the above-mentioned electric vehicle charging method, and the method includes:

[0215] Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the vehicle's AC charger and the vehicle's original charging socket;

[0216] Determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle;

[0217] The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state;

[0218] Determine that the vehicle is in a charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle remains in a charging state;

[0219] Control the DC charging pile to charge the vehicle's battery.

[0220] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0221] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0222] Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims

1. A method for charging an electric vehicle, characterized in that: include: Determine whether the vehicle is in a DC charging mode, and if so, cut off the connection between the AC charger of the vehicle and the original charging socket of the vehicle; Determining that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle; The control main controller sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state; Determine that the vehicle is in the charging state, cut off the connection between the AC charger and the vehicle communication port, and control the main control to send a signal to the vehicle so that the vehicle remains in the charging state; control the DC charging pile to charge the battery of the vehicle; After the main control sends a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state, and before determining that the vehicle is in the charging state, the method includes: Determining that the AC charger is not turned on, and controlling the main control to send a start signal to the AC charger again; Determining that the AC charger is in an off state; Controlling the connection between the AC charger and the original vehicle charging socket; Controlling the conversion of the DC power output by the DC charging pile into AC power, and then transmitting the AC power to the AC charger; Determining that the AC charger is in an on state; Control to disconnect the AC charger and the original vehicle charging socket.

2. The electric vehicle charging method according to claim 1, characterized in that: The controlling the DC charging pile to charge the battery of the vehicle includes: Controlling the first switch assembly between the battery and the original vehicle charging socket to disconnect; Controlling the DC charging pile to perform insulation detection; Confirm that the insulation test has passed; Controlling the high voltage module to output a starting voltage to the DC charging pile; Determining that the DC charging pile handshake is successful; Controlling the high-voltage module to be disconnected, and controlling the first switch component to be closed; The DC charging pile is controlled to start outputting voltage to the original vehicle charging socket.

3. The electric vehicle charging method according to claim 2, characterized in that: Before controlling the DC charging pile to perform insulation detection, the method includes: controlling a second switch component between the high-voltage module and the DC charging pile to be disconnected.

4. The electric vehicle charging method according to claim 1, characterized in that: The determining whether the vehicle is in a DC charging mode includes: Determine whether the adapter is inserted into the original vehicle charging socket; If so, determining that the vehicle is in a DC charging mode; If not, it is determined that the vehicle is in AC charging mode.

5. The electric vehicle charging method according to claim 4, characterized in that: After determining that the vehicle is in a DC charging mode, the method further comprises: Determining whether data of the DC charging pile is detected within a preset time period; If so, determining that the vehicle is in a DC charging mode; If not, it is determined that the vehicle is in AC charging mode.

6. An electric vehicle charging device, characterized in that: include: A judging module, used to judge whether the vehicle is in a DC charging mode, and if so, cut off the connection between the AC charger of the vehicle and the original charging socket of the vehicle; A determination module, used to determine that the charging protocol of the DC charging pile does not match the charging protocol of the vehicle; A wake-up module, used to control the main control to send a start signal to the AC charger to wake up the AC charger so that the vehicle is in a charging state; A first control module, used for determining that the vehicle is in the charging state, cutting off the connection between the AC charger and the vehicle communication port, and controlling the main control to send a signal to the vehicle so that the vehicle is maintained in the charging state; A second control module, used to control the DC charging pile to charge the battery of the vehicle; Among them, the electric vehicle charging device is also used for: Determine that the AC charger is not turned on, and control the main controller to send a start signal to the AC charger again; Make sure the AC charger is not turned on; Control the connection between the AC charger and the original vehicle charging socket; Controlling the conversion of the DC power output by the DC charging pile into AC power, and transmitting the AC power to the AC charger; Make sure the AC charger is turned on; Control and cut off the AC charger and the original vehicle charging socket.

7. A vehicle, comprising a device body, wherein a control component is arranged in the device body, and the control component is used to execute the electric vehicle charging method according to any one of claims 1 to 5.

8. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the electric vehicle charging method according to any one of claims 1 to 5 is implemented.

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