Charging pile with vehicle wake-up function, vehicle wake-up method and program product

Abstract

The application provides a charging pile with a vehicle wake-up function, a vehicle wake-up method and a program product, and relates to the technical field of charging piles. The charging pile comprises a secondary connection confirmation CC2 line drawn from a charging gun wire; a wake-up control circuit, which is connected in series with the CC2 line and a ground wire; and a main control panel, which is used to control the wake-up control circuit to be disconnected to disconnect the CC2 line in response to the fact that a battery management system identification message sent by a vehicle is not received within a first preset time period after a charging gun is connected to a vehicle charging port, and to control the wake-up control circuit to be connected to connect the CC2 line after a second preset time period. The charging pile is used to solve the problem that the operation of replugging the charging gun is complicated when the BRM is terminated due to timeout.

Description

Technical Field

[0001] This application relates to the field of power electronics technology, specifically to the field of charging pile technology, and particularly to a charging pile with vehicle wake-up function, a vehicle wake-up method and program product. Background Technology

[0002] With the increasing popularity of new energy technologies, more and more charging stations are springing up. However, there are still many aspects of the charging process for electric vehicles that need to be optimized.

[0003] For example, while charging an electric vehicle, the charging station may display a Battery Management System Recognition Message (BRM) timeout message. In this case, the owner needs to unplug and replug the charging gun to try again, which is a rather cumbersome process. Summary of the Invention

[0004] This application provides a charging pile with vehicle wake-up function, a vehicle wake-up method and program product, which aims to simplify user operations when BRM timeout terminates.

[0005] In a first aspect, this application provides a charging pile with a vehicle wake-up function, the charging pile comprising: a secondary connection confirmation CC2 line led out from the charging gun wire; a wake-up control circuit, the wake-up control circuit being connected in series with the CC2 line and the ground wire; and a main control board, configured to, in response to not receiving a battery management system identification message sent by the vehicle within a first preset time period after the charging gun is connected to the vehicle charging port, control the wake-up control circuit to disconnect, thereby disconnecting the CC2 line; and after a second preset time period, control the wake-up control circuit to connect, thereby connecting the CC2 line.

[0006] The charging pile with vehicle wake-up function provided in this application may include a secondary connection confirmation (CC2) line led out from the charging gun cable; and a wake-up control circuit, which is connected in series with the CC2 line and the ground wire. The main control board can, in response to not receiving a Battery Management System (BMS) identification message from the vehicle within a first preset time period after the charging gun is connected to the vehicle's charging port, control the wake-up control circuit to disconnect the CC2 line; after a second preset time period, control the wake-up control circuit to connect, thus connecting the CC2 line. In this way, when no BRM is received for an extended period, the charging pile can disconnect the CC2 line, and the vehicle will detect that the voltage of the CC2 line has changed from the normal 6V to 0V, meeting the requirements for restarting CC2. After a period of time, the charging pile can reconnect the CC2 line, and the vehicle will detect that the voltage of the CC2 line has returned to the normal 6V. At this point, the vehicle has completed one wake-up function operation, and the vehicle can restart charging. The charging pile can then re-attempt to receive the BRM sent by the vehicle's BMS, eliminating the need for the owner to unplug and replug the charging gun, thereby simplifying user operations when the BRM timeout terminates.

[0007] Optionally, the wake-up control circuit includes an intermediate relay and a main control board, specifically used to control the opening or closing of the intermediate relay.

[0008] Optionally, the intermediate relay includes coil terminals and switch terminals; the switch between the switch terminals is in a normally closed state; the main control board includes a power switch; the coil terminals are connected in series with the power supply and the power switch; the main control board is specifically used to switch the switch between the switch terminals to a normally open state by closing the power switch, and to switch the switch between the switch terminals to a normally closed state by turning off the power switch.

[0009] Optionally, the power switch includes a digital output (DO) interface; the coil terminals include a first coil terminal and a second coil terminal; the first coil terminal is connected to the positive terminal of the 12V power supply; the second coil terminal is connected to the DO interface; the DO interface is connected to the common negative terminal of the relevant interface of the 12V power supply on the main control board; the common negative terminal is connected to the ground wire; and the negative terminal of the 12V power supply is connected to the ground wire.

[0010] Optionally, the switch terminal includes a first switch terminal and a second switch terminal; the first switch terminal is connected to the ground wire; the second switch terminal is connected to the first connection terminal of the charging pile; the first connection terminal and the second connection terminal are fixedly connected; and the second connection terminal is connected to the CC2 line.

[0011] Optionally, the first switch terminal is connected to the ground wire via an additional grounding wire.

[0012] Optionally, a fixed resistor is connected in series with the newly added grounding wire. This ensures that the voltage of the CC2 line detected by the vehicle is consistent with the voltage of the CC22 line in the original ordinary charging gun, thus avoiding interference with the normal charging process.

[0013] Optionally, the charging station further includes: a prompting device for outputting a wake-up prompt message; the wake-up prompt message is used to prompt the battery management system to identify that the message acquisition timeout has occurred and to wake up the vehicle again.

[0014] Secondly, this application provides a vehicle wake-up method, which is applied to a charging pile. The charging pile includes a secondary connection confirmation CC2 line and a wake-up control circuit led out from the charging gun wire. The wake-up control circuit is connected in series with the CC2 line and the ground wire. The method includes: in response to not receiving a battery management system identification message sent by the vehicle within a first preset time period after the charging gun is connected to the vehicle charging port, controlling the wake-up control circuit to disconnect to disconnect the CC2 line; after a second preset time period, controlling the wake-up control circuit to connect to connect the CC2 line.

[0015] Thirdly, this application provides a vehicle wake-up device applied to a charging pile. The charging pile includes a secondary connection confirmation CC2 line and a wake-up control circuit led out from the charging gun cable. The wake-up control circuit is connected in series with the CC2 line and a ground wire. The device includes a processing module. The processing module is configured to, in response to not receiving a battery management system identification message from the vehicle within a first preset time period after the charging gun is connected to the vehicle's charging port, control the wake-up control circuit to disconnect, thereby disconnecting the CC2 line; and after a second preset time period, control the wake-up control circuit to connect, thereby connecting the CC2 line.

[0016] Fourthly, this application provides a readable storage medium, comprising: software instructions; when the software instructions are executed in the charging pile, they cause the charging pile to implement the method described in the third aspect above.

[0017] Fifthly, this application provides a computer program product including computer instructions that, when executed on an electronic device, cause the electronic device to perform the method provided in the third aspect above.

[0018] The beneficial effects of aspects two through five above can be referred to in aspect one, and will not be repeated here. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0020] Figure 1 This is a schematic diagram of the BRM transmission in the current charging system; Figure 2 A schematic diagram illustrating the composition of a charging pile with vehicle wake-up function provided in an embodiment of this application; Figure 3 Wiring diagram of intermediate relay provided for embodiments of this application; Figure 4 This is a schematic diagram of the grounding wire connection provided in an embodiment of this application; Figure 5 A flowchart illustrating the vehicle wake-up method provided in this application embodiment; Figure 6 This is a schematic diagram illustrating the composition of the vehicle wake-up device provided in an embodiment of this application. Detailed Implementation

[0021] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third-person singular "comprises" and the present participle "comprising" are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this application. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0023] 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 of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0024] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0025] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0026] With the increasing popularity of new energy technologies, more and more charging stations are springing up. However, there are still many aspects of the charging process for electric vehicles that need to be optimized.

[0027] For example, when a car owner is charging an electric vehicle, the charging station obtains the BRM (Battery Management System) from the vehicle's Battery Management System (BMS). If the charging station does not receive this message within a specified time, it will display a BRM timeout message. In this case, the car owner needs to unplug and plug the charging gun again to try, which is a rather cumbersome process.

[0028] Based on this, embodiments of this application provide a charging pile with vehicle wake-up function, a vehicle wake-up method and program product, which aims to simplify user operations when BRM timeout terminates.

[0029] The following description is provided in conjunction with the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the BRM transmission in the current charging system. Figure 1 As shown, after the charging gun of the charging pile is connected to the charging interface of the vehicle, the vehicle charging controller in the vehicle can send a BRM to the device charging controller in the charging pile through the S+ / S- communication line in the original ordinary charging gun. The secondary connection confirmation (ConnectionConfirmation 2, CC2) line in the original ordinary charging gun is connected to the fixed resistor ( Figure 1 (Taking R3 as an example) It is connected in series and directly connected to the ground wire of the charging pile. That is, the CC2 line is in a default connected state when the charging gun is connected to the charging interface. When the charging pile does not receive the BRM sent by the vehicle for a long time, the charging pile will display BRM timeout. In this case, the car owner needs to unplug and plug the charging gun again to try, which is a rather cumbersome operation.

[0031] Figure 2 This is a schematic diagram illustrating the composition of a charging pile with vehicle wake-up function provided in an embodiment of this application. Figure 2As shown, the charging pile 100 may include: CC2 line 101, wake-up control circuit 102, ground wire 103 and main control board 104.

[0032] CC2 line 101 can be led out from the charging gun wire and connected to the charging pile 100, and the fixed resistor (e.g., a 1000-ohm resistor) connected in series with the original ordinary gun wire can be removed.

[0033] The wake-up control circuit 102 is connected in series with the CC2 line 101 and the ground line 103.

[0034] The main control board 104 is used to control the wake-up control circuit 102 to disconnect the CC2 line 101 in response to not receiving the battery management system identification message sent by the vehicle within a first preset time period after the charging gun is connected to the vehicle charging port; and to control the wake-up control circuit to connect after a second preset time period to connect the CC2 line.

[0035] The first preset duration and the second preset duration can be preset in the charging pile 100. The first preset duration can be the same as or different from the second preset duration. For example, the first preset duration can be set to 30 seconds, 1 minute, 3 minutes, or 5 minutes, etc. This application embodiment does not limit the specific duration of the first preset duration. Similarly, the second preset duration can be set to 10 seconds, 30 seconds, 1 minute, or 3 minutes, etc. This application embodiment does not limit the specific duration of the second preset duration.

[0036] The charging pile with vehicle wake-up function provided in this application embodiment may include a secondary connection confirmation (CC2) line led out from the charging gun cable; and a wake-up control circuit, which is connected in series with the CC2 line and the ground wire. The main control board may, in response to not receiving a Battery Management System (BMS) identification message from the vehicle within a first preset time period after the charging gun is connected to the vehicle's charging port, control the wake-up control circuit to disconnect, thus disconnecting the CC2 line; after a second preset time period, control the wake-up control circuit to connect, thus connecting the CC2 line. In this way, when no BRM is received for an extended period, the charging pile can disconnect the CC2 line, and the vehicle will detect that the voltage of the CC2 line has changed from the normal 6V to 0V, meeting the requirements for restarting CC2. After a period of time, the charging pile can reconnect the CC2 line, and the vehicle will detect that the voltage of the CC2 line has returned to the normal 6V. At this point, the vehicle has completed one wake-up function operation, and the vehicle can restart charging. The charging pile can then re-attempt to receive the BRM sent by the vehicle's BMS, without requiring the owner to unplug and replug the charging gun, thereby simplifying user operations when the BRM timeout terminates.

[0037] In some possible embodiments, the wake-up control circuit 102 may include an intermediate relay. The main control board 104 is specifically used to control the opening or closing of the intermediate relay.

[0038] As an example, the intermediate relay includes coil terminals and switch terminals, with the switch between the switch terminals in a normally closed state. The main control board 104 includes a power switch; the coil terminals are connected in series with the power supply and the power switch. Specifically, the main control board is used to switch the switch between the switch terminals to a normally open state by closing the power switch, and to switch the switch between the switch terminals to a normally closed state by turning off the power switch.

[0039] For example, the power switch includes a digital output (DO) interface, and the coil terminals include a first coil terminal and a second coil terminal. The first coil terminal is connected to the positive terminal of the 12V power supply, and the second coil terminal is connected to the DO interface. The DO interface is connected to the common negative terminal of the relevant interface of the 12V power supply on the main control board. The common negative terminal is connected to the ground wire, and the negative terminal of the 12V power supply is connected to the ground wire.

[0040] For example, the switch terminal includes a first switch terminal and a second switch terminal. The first switch terminal is connected to the ground wire, the second switch terminal is connected to the first connection terminal of the charging pile, the first connection terminal and the second connection terminal are fixedly connected, and the second connection terminal is connected to the CC2 line.

[0041] For example, Figure 3 A wiring diagram of an intermediate relay provided for an embodiment of this application. (See diagram below.) Figure 3 As shown, the intermediate relay may include terminal 11 (i.e., the first switch terminal mentioned above) and terminal 21 of the common terminal, terminal A1 (i.e., the first coil terminal mentioned above) and terminal A2 (i.e., the second coil terminal mentioned above) of the coil, and terminal 12 (i.e., the second switch terminal mentioned above) and terminal 22 of the normally closed terminal. Terminal 11 is connected to the ground wire of the charging pile. Figure 3 (Taking the A-type charging gun PE as an example), terminals 21 and 22 are connected. Terminal 12 is connected to the first connection terminal of the charging pile. Figure 3 Taking XA-6A as an example, the first connection terminal is connected to the second terminal ( Figure 3 (Not shown in the diagram, the second terminal can be referred to as XA-6B). Terminal A1 is connected to the positive terminal of the 12V power supply. Figure 3 Taking P1-V+ as an example, terminal A2 is connected to the DO interface ( Figure 3 (Using UA-J2-4 as an example).

[0042] As an example, such as Figure 3 As shown, the intermediate relay may also include normally open terminals 14 and 24.

[0043] In some possible embodiments, the first switch terminal is connected to the ground wire via an additional grounding wire.

[0044] As an example, a fixed resistor is connected in series with the newly added grounding wire. For instance, the fixed resistor connected in series with the new grounding wire can have the same resistance value as the fixed resistor connected in series with the CC2 line in the original ordinary charging gun. This ensures that the voltage detected by the vehicle on the CC2 line is consistent with the voltage on the CC22 line in the original ordinary charging gun, avoiding interference with the normal charging process.

[0045] For example, Figure 4 This is a schematic diagram of the grounding conductor connection provided in an embodiment of this application. Figure 4 As shown, the fixed resistor in the newly added grounding conductor can be a 1000-ohm resistor with a rated power of 1 / 2W and a resistance of 0.1%. Both ends of the resistor are soldered to the cable and then covered with heat-shrink tubing. One end of the fixed resistor is connected to the grounding conductor. Figure 4 (Taking the PE wire as an example) One end of the grounding conductor uses a TVR1.25-4 crimped connector, and the grounding conductor is a UL1015 type, 18AWG diameter blue wire. Figure 4 (Using UL1015 18AWG blue as an example). The other end of the fixed resistor is connected to the intermediate relay ( Figure 4 (Taking KA1-11 as an example) The connection is such that the grounding wire at the other end of the intermediate relay uses a connector terminal of specification E1008.

[0046] In some possible embodiments, the charging station may also include a notification device. The notification device can be used to output a wake-up notification message.

[0047] The wake-up notification message is used to prompt the battery management system to identify that the message acquisition timeout has occurred and to wake up the vehicle again.

[0048] As an example, the prompting device may be a display screen and / or a speaker, etc. This application does not limit the specific form of the prompting device.

[0049] Based on the understanding of the above embodiments, in an exemplary embodiment, this application also provides a vehicle wake-up method. Figure 5 This is a flowchart illustrating the vehicle wake-up method provided in an embodiment of this application. Figure 5 As shown, the method may include the following steps: S101. In response to the fact that no battery management system identification message is received from the vehicle within a first preset time after the charging gun is connected to the vehicle charging port, the wake-up control circuit is disconnected to disconnect the CC2 line.

[0050] S102. After the second preset time, the wake-up control circuit is connected to connect the CC2 line.

[0051] The specific processes of S101 and S102 can be referred to the charging pile described in the above embodiments, and will not be repeated here.

[0052] The foregoing mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, each device, such as a charging pile, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the algorithm steps of the examples described in the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Experts may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0053] This application embodiment can divide the overcharging pile into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0054] In an exemplary embodiment, Figure 6 This is a schematic diagram illustrating the composition of the vehicle wake-up device provided in an embodiment of this application. Figure 6 As shown, the vehicle wake-up device can be applied to a charging device, and the vehicle wake-up device may include a processing module 601.

[0055] The processing module 601 is used to control the wake-up control circuit to disconnect and disconnect the CC2 line if it does not receive the battery management system identification message sent by the vehicle within a first preset time period after the charging gun is connected to the vehicle charging port; and to control the wake-up control circuit to connect and connect the CC2 line after a second preset time period.

[0056] It should be noted that the above Figure 6 Modules in a module can also be called units; for example, a processing module can be called a processing unit. Additionally, in... Figure 6 In the embodiments shown, the names of the modules may not be the same as those shown in the figure. For example, the acquisition module may also be called the transceiver module or the communication module.

[0057] Figure 6 If the various modules in the process are implemented as software functional modules and sold or used as independent products, they can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of software products. These software products are stored in a storage medium and include several instructions to cause an electronic device or processor to execute all or part of the steps of the methods of the various embodiments of this application. Storage media for storing computer software products include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0058] In an exemplary embodiment, this application also provides a readable storage medium including software instructions. When the software instructions are executed in the charging pile, they enable the charging pile to implement the methods described in the above embodiments. The readable storage medium can also be an external storage device of the charging pile, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the charging pile. Further, the readable storage medium can include both internal storage units and external storage devices of the charging pile. The readable storage medium is used to store the software instructions and other programs and data required by the charging pile. The readable storage medium can also be used to temporarily store data that has been output or will be output.

[0059] In an exemplary embodiment, this application also provides a computer program product, which includes computer instructions that, when executed on a charging pile, cause the charging pile to perform the method described in the above method embodiment.

[0060] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer-executable instructions. When these computer-executable instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer-executable instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer-executable instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device containing one or more servers, data centers, etc., that can be integrated with the medium. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape) or an optical medium (e.g., DVD), etc.

[0061] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0062] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A charging pile with vehicle wake-up function, characterized in that, include: The secondary connection drawn from the charging gun cable confirms the CC2 circuit; A wake-up control circuit is connected in series with the CC2 line and the ground line; the wake-up control circuit includes an intermediate relay; The main control board is used to control the wake-up control circuit to disconnect the CC2 line in response to the fact that no battery management system identification message sent by the vehicle is received within a first preset time period after the charging gun is connected to the vehicle charging port; after a second preset time period, the main control board controls the wake-up control circuit to connect the CC2 line; the main control board is specifically used to control the opening or closing of the intermediate relay. The intermediate relay includes a switch terminal; the switch terminal includes a first switch terminal and a second switch terminal; the first switch terminal is connected to the ground wire; the second switch terminal is connected to the first connection terminal of the charging pile; the first connection terminal and the second connection terminal are fixedly connected; the second connection terminal is connected to the CC2 line. The first switch terminal is connected to the ground wire via a newly added grounding wire; The newly added grounding wire is connected in series with a fixed resistor.

2. The charging pile according to claim 1, characterized in that, The intermediate relay includes a coil terminal and a switch terminal; the switch between the switch terminals is normally closed; the main control board includes a power switch; the coil terminal is connected in series with the power supply and the power switch. The main control board is specifically used to switch the switch between the switch terminals to a normally open state by closing the power switch, and to switch the switch between the switch terminals to a normally closed state by turning off the power switch.

3. The charging pile according to claim 2, characterized in that, The power switch includes a digital output (DO) interface; the coil terminals include a first coil terminal and a second coil terminal; the first coil terminal is connected to the positive terminal of the 12V power supply; the second coil terminal is connected to the DO interface; the DO interface is connected to the common negative terminal of the relevant interface of the 12V power supply on the main control board; the common negative terminal is connected to the ground wire; and the negative terminal of the 12V power supply is connected to the ground wire.

4. The charging pile according to claim 1, characterized in that, Also includes: A prompting device is used to output a wake-up prompt message; the wake-up prompt message is used to prompt the battery management system to identify that the message acquisition timeout has occurred and to wake up the vehicle again.

5. A vehicle wake-up method, characterized in that, The method is applied to a charging pile; the charging pile includes a secondary connection confirmation CC2 line led out from the charging gun wire, a wake-up control circuit, and a main control board; the wake-up control circuit is connected in series with the CC2 line and the ground wire; the wake-up control circuit includes an intermediate relay; the intermediate relay includes a switch terminal; the switch terminal includes a first switch terminal and a second switch terminal; the first switch terminal is connected to the ground wire; the second switch terminal is connected to a first connection terminal of the charging pile; the first connection terminal and the second connection terminal are fixedly connected; the second connection terminal is connected to the CC2 line; the first switch terminal is connected to the ground wire through an additional grounding wire; The newly added grounding wire is connected in series with a fixed resistor; The main control board is used to control the opening or closing of the intermediate relay; the method includes: If no battery management system identification message is received from the vehicle within a first preset time period after the charging gun is connected to the vehicle charging port, the wake-up control circuit is controlled to disconnect, thereby disconnecting the CC2 line. After a second preset time period, the wake-up control circuit is activated to connect the CC2 line.

6. A computer program product, characterized in that, include: Computer instructions; When the computer instructions are executed in the charging station, the charging station causes the charging station to perform the method as described in claim 5.

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