A vehicle control method and device based on V2G, medium and electronic equipment

Abstract

The application relates to the technical field of whole vehicle control, and discloses a whole vehicle control method and device based on V2G, a medium and an electronic device. The method comprises the following steps: sending a chargeable and dischargeable detection instruction to a charging pile; if a dischargeable message signal sent by the charging pile is received, closing a relay of a whole vehicle through a battery management system and sending a discharge preparation message signal to the charging pile; and if a fast discharge message signal sent by the charging pile is received, discharging to the charging pile and sending a V2G discharge message signal, so that the charging pile discharges to a power grid according to the V2G discharge message signal. Through the whole vehicle control method based on V2G provided by the embodiment, the automobile can discharge to the power grid to improve the stability and safety of the power grid under the condition that the power grid is unstable, manual intervention is not needed, the processing cost is reduced, and the efficiency of the power grid stability repair processing is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of whole vehicle control, in particular, to a whole vehicle control method and device based on V2G, a medium and an electronic device. BACKGROUND

[0002] V2G is a technology for realizing the bidirectional flow of energy between the power grid and electric vehicles. In the use of existing vehicles and charging piles, when the power grid is in an unstable state, if the vehicle needs to be charged through the charging pile, the charging will be unstable. Therefore, how to solve the problem of unstable power grid is very important. The existing solution to the problem of unstable power grid is to manually repair the power grid, which has high processing cost and low efficiency. SUMMARY

[0003] The present application provides a whole vehicle control method and device based on V2G, a medium and an electronic device, which can discharge the vehicle to the power grid under the condition of unstable power grid to improve the stability and safety of the power grid through V2G technology, without manual intervention, reducing the processing cost and improving the processing efficiency.

[0004] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0005] According to an aspect of an embodiment of the present application, a whole vehicle control method based on V2G is provided, the method comprising:

[0006] sending a chargeable and dischargeable detection instruction to the charging pile;

[0007] if a dischargeable message signal sent by the charging pile is received, closing the relay of the whole vehicle through the battery management system and sending a discharge preparation message signal to the charging pile; the dischargeable message signal is generated by the charging pile according to the chargeable and dischargeable detection instruction;

[0008] if a fast discharge message signal sent by the charging pile is received, discharging to the charging pile and sending a V2G discharge message signal to make the charging pile discharge the power grid according to the V2G discharge message signal; wherein the fast discharge message signal is generated by the charging pile based on the voltage detection value of the power grid and the discharge preparation message signal.

[0009] In an embodiment of the present application, based on the foregoing scheme, if the dischargeable message signal sent by the charging pile is received, the relay of the whole vehicle is closed through the battery management system and the discharge preparation message signal is sent to the charging pile, comprising:

[0010] if the discharging available message signal sent by the charging pile is received, a corresponding discharging instruction is generated based on the discharging available message signal;

[0011] The battery management system is used to close the relay of the whole vehicle based on the discharging instruction, and a discharging preparation message signal is sent to the charging pile.

[0012] In an embodiment of the present application, based on the foregoing scheme, the battery management system is used to close the relay of the whole vehicle based on the discharging instruction, and a discharging preparation message signal is sent to the charging pile, which comprises:

[0013] The relay of the whole vehicle is closed based on the discharging instruction, and the discharging available state information of the whole vehicle is generated;

[0014] The discharging preparation message signal is generated according to the discharging available state information;

[0015] The discharging preparation message signal is sent to the charging pile.

[0016] In an embodiment of the present application, based on the foregoing scheme, after the discharging to the charging pile and the sending of the V2G discharging message signal, the method further comprises:

[0017] If the discharging information statistical message signal sent by the charging pile is received, the first discharging information of the whole vehicle to the charging pile and the second discharging information of the charging pile to the power grid are obtained based on the discharging information statistical message signal; the discharging information statistical message signal is generated by the charging pile according to the V2G discharging message signal;

[0018] The discharging information statistical report is generated based on the first discharging information and the second discharging information;

[0019] The discharging information statistical report is sent to the terminal.

[0020] In an embodiment of the present application, based on the foregoing scheme, after the sending of the discharging available message signal to the charging pile, the method further comprises:

[0021] If the charging available message signal sent by the charging pile is received, the relay of the whole vehicle is closed by the battery management system, and a charging preparation message signal is sent to the charging pile; wherein the charging available message signal is generated by the charging pile according to the discharging available message signal.

[0022] If the fast charging message signal sent by the charging pile is received, the whole vehicle is charged, and the charging state information of the whole vehicle and the discharging state information of the charging pile are obtained;

[0023] The fast charging message signal is generated by the charging pile according to the charging preparation message signal.

[0024] In an embodiment of the present application, based on the foregoing scheme, the obtaining of the charging state information of the whole vehicle and the discharging state information of the charging pile comprises:

[0025] The discharging state information of the charging pile is obtained based on the fast charging message signal, and the discharging state information of the charging pile comprises a discharging current of the charging pile and a discharging voltage of the charging pile.

[0026] The charging current of the whole vehicle and the charging voltage of the whole vehicle are obtained.

[0027] The charging state information of the whole vehicle is generated based on the charging current of the whole vehicle and the charging voltage of the whole vehicle.

[0028] In an embodiment of the present application, based on the foregoing scheme, after the obtaining of the discharging state information of the charging pile based on the fast charging message signal, the method further comprises:

[0029] The charging information statistical report is generated based on the charging state information of the whole vehicle and the discharging state information of the charging pile.

[0030] If a charging information statistical request instruction sent by the charging pile is received, a charging information statistical report corresponding to the charging information statistical request instruction is sent to the charging pile.

[0031] According to an aspect of an embodiment of the present application, a whole vehicle control device based on V2G is provided, and the device comprises:

[0032] A first sending unit is used to send a chargeable and dischargeable detection instruction to a charging pile.

[0033] A second sending unit is used to close a relay of a whole vehicle through a battery management system and send a discharging preparation message signal to the charging pile if a dischargeable message signal sent by the charging pile is received, wherein the dischargeable message signal is generated by the charging pile based on the chargeable and dischargeable detection instruction.

[0034] A discharging unit is used to discharge to the charging pile and send a V2G discharging message signal to make the charging pile discharge to a power grid according to the V2G discharging message signal if a fast discharging message signal sent by the charging pile is received, wherein the fast discharging message signal is generated by the charging pile based on a voltage detection value of the power grid and the discharging preparation message signal.

[0035] In an embodiment of the present application, based on the foregoing scheme, the second sending unit is configured to: if the discharging-capable message signal sent by the charging pile is received, generate a corresponding discharging instruction based on the discharging-capable message signal; and close the relay of the whole vehicle through the battery management system based on the discharging instruction and send a discharging-preparation message signal to the charging pile.

[0036] In an embodiment of the present application, based on the foregoing scheme, the second sending unit is configured to: close the relay of the whole vehicle based on the discharging instruction, generate the discharging-capable state information of the whole vehicle, generate the discharging-preparation message signal according to the discharging-capable state information, and send the discharging-preparation message signal to the charging pile.

[0037] In an embodiment of the present application, based on the foregoing scheme, the V2G-based whole vehicle control device further comprises a first obtaining unit configured to, if the discharging information statistical message signal sent by the charging pile is received, obtain first discharging information of the whole vehicle to the charging pile and second discharging information of the charging pile to the power grid based on the discharging information statistical message signal; the discharging information statistical message signal is generated by the charging pile according to the V2G discharging message signal; a first generating unit configured to generate a discharging information statistical report based on the first discharging information and the second discharging information; and a third sending unit configured to send the discharging information statistical report to a terminal.

[0038] In an embodiment of the present application, based on the foregoing scheme, the V2G-based whole vehicle control device further comprises a closing unit configured to, if the chargeable message signal sent by the charging pile is received, close the relay of the whole vehicle through the battery management system and send a charging-preparation message signal to the charging pile; wherein the chargeable message signal is generated by the charging pile according to the chargeable / dischargeable detection instruction; a second obtaining unit configured to, if the fast-charging message signal sent by the charging pile is received, charge the whole vehicle and obtain charging state information of the whole vehicle and discharging state information of the charging pile; wherein the fast-charging message signal is generated by the charging pile according to the charging-preparation message signal.

[0039] In an embodiment of the present application, based on the foregoing scheme, the second obtaining unit is configured to: obtain the discharging state information of the charging pile based on the fast-charging message signal, wherein the discharging state information of the charging pile includes a discharging current of the charging pile and a discharging voltage of the charging pile; obtain a charging current of the whole vehicle and a charging voltage of the whole vehicle; and generate the charging state information of the whole vehicle based on the charging current of the whole vehicle and the charging voltage of the whole vehicle.

[0040] In an embodiment of the present application, based on the foregoing scheme, the V2G-based vehicle control device further comprises a second generating unit configured to generate a charging information statistical report based on the charging state information of the vehicle and the discharging state information of the charging pile; and a fourth sending unit configured to send the charging pile a charging information statistical report corresponding to a charging information statistical request instruction received from the charging pile.

[0041] According to an aspect of an embodiment of the present application, there is provided a computer readable storage medium having stored thereon a computer program comprising executable instructions which, when executed by a processor, implement the V2G-based vehicle control method as described in the above embodiments.

[0042] According to an aspect of an embodiment of the present application, there is provided an electronic device comprising: one or more processors; and a memory storing executable instructions of the processor, which, when executed by the one or more processors, cause the one or more processors to implement the V2G-based vehicle control method as described in the above embodiments.

[0043] In the technical scheme of the embodiment of the present application, the charging pile can be sent a chargeable and dischargeable detection instruction, that is, it is determined whether the current charging pile has the function of discharging to the power grid. After obtaining the dischargeable message signal sent by the charging pile, it is confirmed that the current charging pile has the function of discharging to the power grid. The battery management system closes the relay of the vehicle and sends a discharge preparation message signal to the charging pile to prompt that the current vehicle can discharge to the charging pile.

[0044] When receiving the fast discharge message signal sent by the charging pile, it means that the charging pile can receive the discharge of the vehicle and discharge to the power grid according to the V2G discharge message signal sent by the vehicle, and the direct current sent by the vehicle is inverted into alternating current to discharge to the power grid.

[0045] The V2G-based vehicle control method provided by the embodiment of the present application can be used in the unstable state of the power grid. When the voltage detection value of the charging pile is too low, that is, the power grid is in an unstable state, the charging pile can send a fast discharge message signal to the vehicle to make the vehicle discharge to the charging pile. The charging pile transmits the electricity discharged by the vehicle to the power grid after processing, to complete the transmission between the vehicle and the power grid, improve the stability and safety of the power grid, and realize the transmission automation between the vehicle and the power grid without manual intervention, thereby reducing the processing cost and improving the efficiency of the power grid stability repair processing.

[0046] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Attached Figure Description

[0047] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0048] Figure 1 This is a flowchart illustrating a V2G-based vehicle control method according to an embodiment of this application;

[0049] Figure 2 This is a flowchart illustrating how, upon receiving a dischargeable message signal from the charging pile, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile.

[0050] Figure 3 This is a block diagram illustrating a V2G-based vehicle control device according to an embodiment of this application;

[0051] Figure 4 This is a schematic diagram of the system structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0052] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0053] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0054] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller node devices.

[0055] The flow chart shown in the drawing is only an example and does not necessarily include all the contents and operations / steps, nor does it have to be executed in the order described. For example, some operations / steps can be further divided, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to the actual situation.

[0056] It should be noted that "multiple" referred to in this paper means two or more. The association relationship of "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0057] The implementation details of the technical solutions of the embodiments of the present application are described in detail as follows:

[0058] First of all, it should be noted that the vehicle control scheme based on V2G proposed in this application can be applied to the related technical field of vehicle control. In the technical solution of the embodiment of the present application, a chargeable and dischargeable detection instruction can be sent to the charging pile, at which time it is determined whether the current charging pile has the function of discharging to the power grid. After obtaining the dischargeable message signal sent by the charging pile, it is confirmed that the current charging pile has the function of discharging to the power grid. The battery management system closes the relay of the whole vehicle and sends a discharge preparation message signal to the charging pile to prompt that the current vehicle can discharge to the charging pile.

[0059] When the fast discharge message signal sent by the charging pile is received, it means that the charging pile can receive the discharge of the vehicle and discharge to the power grid according to the V2G discharge message signal sent by the vehicle, and the direct current sent by the vehicle is inverted into alternating current to discharge to the power grid.

[0060] The vehicle control method based on V2G provided by the embodiment of the present application can make the automobile discharge to the power grid to improve the stability and safety performance of the power grid in the unstable state of the power grid through the V2G technology, without manual intervention, reducing the processing cost and improving the efficiency of the power grid stability repair processing.

[0061] According to one aspect of the present application, a vehicle control method based on V2G is provided, Figure 1 For the flow chart of the vehicle control method based on V2G shown in the embodiment of the present application, the method at least includes steps 110 to 130, which are described in detail as follows:

[0062] In step 110, a chargeable and dischargeable detection instruction is sent to the charging pile.

[0063] Specifically, the vehicle control method based on V2G provided in the application is applied to a vehicle control unit VCU, and data interaction is performed with a charging pile through the vehicle control unit VCU, so as to control the charging pile to discharge to the power grid to improve the stability and safety of the power grid. Wherein, V2G, full name Vehicle-to-grid, means "vehicle to grid", V2G as a kind of smart grid technology, describes the relationship between electric vehicles and power grid, and the electric vehicles in the idle state are regarded as distributed energy storage units, through the two-way communication between electric vehicles and power grid, the energy flow between electric vehicles and power grid is realized. The charging pile mentioned in the embodiment of the application is a V2G charging pile, and the V2G charging pile has the functions of direct current charging and discharging, and can be charged from the power grid and discharged to the power grid.

[0064] Further, after the user inserts the gun and swipes the card, the V2G pile first locks the electronic lock and sends an A+ level signal and a CDC message to the vehicle; the CDC message indicates whether the pile has discharging function, and the CDC message at this time is a message signal responded by the V2G charging pile according to the chargeable and dischargeable detection instruction, wherein the CDC message signal includes a dischargeable message signal and a chargeable message signal.

[0065] After the battery management system is awakened by the A+ level signal, the vehicle control unit VCU is awakened through the CAN signal; at the same time, the battery management system sends the gun insertion state CC2 / CC1 (CC1 is optional) and the A+ state to the vehicle control unit VCU.

[0066] In step 120, if the dischargeable message signal sent by the charging pile is received, the relay of the vehicle is closed through the battery management system and a discharging preparation message signal is sent to the charging pile; the dischargeable message signal is generated by the charging pile according to the chargeable and dischargeable detection instruction.

[0067] In an embodiment of the application, step 120 can be performed according to steps S1-S2:

[0068] Step S1: if the dischargeable message signal sent by the charging pile is received, a corresponding discharging instruction is generated based on the dischargeable message signal.

[0069] Step S2: based on the discharging instruction, the relay of the vehicle is closed through the battery management system and a discharging preparation message signal is sent to the charging pile.

[0070] In an embodiment of the application, the closing of the relay of the vehicle through the battery management system and the sending of the discharging preparation message signal to the charging pile based on the discharging instruction include:

[0071] The relay of the vehicle is closed based on the discharging instruction, and the dischargeable state information of the vehicle is generated.

[0072] generating the discharge preparation message signal according to the dischargeable state information;

[0073] sending the discharge preparation message signal to the charging pile.

[0074] Specifically, the battery management system, that is, BMS (Battery Management System). The discharge preparation message signal in the embodiment of the application refers to the BDC message. The BDC message indicates that the current vehicle has the V2G discharge function. At this time, the vehicle controller VCU replies to the V2G charging pile with the BDC message. After the V2G charging pile receives the BDC message, the CDC message is stopped, and the A+ level signal is stopped. After the A+ is stopped, the vehicle controller VCU starts the countdown processing. After the countdown ends, if the fast discharge message signal (CHM message) sent by the V2G charging pile is still not received, the vehicle controller VCU ends the process.

[0075] It should be noted that the time of the countdown can be set according to actual needs, which is not limited herein. In the embodiment of the application, the time of the countdown is 6 seconds, that is, after the V2G charging pile receives the BDC message, the CDC message is stopped, and the A+ level signal is stopped. After the A+ is stopped, the vehicle controller VCU starts the countdown processing for 6 seconds. After 6 seconds, if the CHM message (which indicates the software version number of the pile) sent by the V2G charging pile is still not received, the vehicle controller VCU ends the process.

[0076] In step 130, if the fast discharge message signal sent by the charging pile is received, the charging pile is discharged and the V2G discharge message signal is sent, so that the charging pile discharges the power grid according to the V2G discharge message signal. The fast discharge message signal is generated by the charging pile based on the voltage detection value of the power grid and the discharge preparation message signal.

[0077] Specifically, the charging pile can determine whether the current power grid belongs to an unstable state by detecting the voltage value of the power grid. When the voltage detection value of the power grid is lower than the stable value, the fast discharge message signal is generated by responding to the discharge preparation message signal and sent to the vehicle, so that the vehicle discharges the power grid and improves the stability of the power grid.

[0078] If the V2G charging pile starts to send the CHM message after the CDC message is stopped, the vehicle controller VCU replies with the BHM message. The BHM message indicates the maximum charging voltage of the vehicle.

[0079] The vehicle control unit VCU requests the battery management system to close the high-voltage relay, and close the main positive and main negative relays; after the battery management system closes the relays, a feedback state signal is fed back to the vehicle control unit VCU. The V2G charging pile sends a CRM message, which is a feedback state signal to the vehicle control unit VCU, that is, a configuration information confirmation message of the V2G charging pile. At this time, the vehicle control unit VCU replies to the V2G charging pile with a BRM message, which is a charging parameter configuration information of the vehicle, including the battery type and the like.

[0080] After the vehicle control unit VCU receives the CRMAA message from the V2G charging pile end, the BRM message is stopped, and the BCP message and the extended message BCPP are started to be sent, the BCP message is a power battery charging parameter message, and the extended message BCPP is an extension of the BCP message, which is a conventional technology.

[0081] The V2G charging pile starts to send a CML message and an extended message CMLP, and the vehicle control unit VCU sends a BRO00 message. The CML message and the BRO00 message are mutually responsive message signals, and the dischargeable state information means a discharge instruction.

[0082] The vehicle control unit VCU requests the battery management system to close the relays, in preparation for rapid discharge. After the battery management system closes the relays, a feedback state signal is fed back to the vehicle control unit VCU; the vehicle control unit VCU sends a BROAA message to the V2G charging pile, wherein the BROAA message is the first discharge information of the vehicle to the charging pile.

[0083] The V2G charging pile closes its internal output relays and sends a CCS message and a CCD message. If the CCD message content is discharge, it means that the V2G charging pile is ready for discharge; if the CCD message content is charge, it means that the V2G charging pile is ready for charge. Similarly, if the CCD message content is charge, it means that the V2G charging pile is ready for charge; if the CCD message content is discharge, it means that the V2G charging pile is ready for discharge.

[0084] In an embodiment of the present application, the method further comprises:

[0085] If the discharge information statistical message signal sent by the charging pile is received, the first discharge information of the vehicle to the charging pile and the second discharge information of the charging pile to the power grid are obtained based on the discharge information statistical message signal; the discharge information statistical message signal is generated by the charging pile according to the V2G discharge message signal;

[0086] A discharge information statistical report is generated based on the first discharge information and the second discharge information;

[0087] sending the discharge information statistics report to the terminal.

[0088] Specifically, the vehicle controller VCU sends the current and voltage corresponding to the discharge request of the whole vehicle, i.e. the BCL message, which refers to the second discharge information of the charging pile to the power grid. At the same time, the discharge state message BCS, i.e. the discharge information statistics report signal, is received; similarly, the BCS message can also represent the charging information statistics report.

[0089] During the charging / discharging process, the V2G charging pile continuously sends the CCS message and the CCD message, and the whole vehicle continuously sends the BCL, BCS and BSM charging information statistics messages, wherein the discharge information statistics report refers to the CCS message; the charging information statistics report refers to the BSM charging information statistics message.

[0090] In an embodiment of the present application, the method further comprises:

[0091] If the chargeable message signal sent by the charging pile is received, the relay of the whole vehicle is closed by the battery management system and the charging preparation message signal is sent to the charging pile; wherein the chargeable message signal is generated by the charging pile according to the chargeable / dischargable detection instruction;

[0092] If the fast charging message signal sent by the charging pile is received, the whole vehicle is charged and the charging state information of the whole vehicle and the discharge state information of the charging pile are obtained.

[0093] Wherein, the fast charging message signal is generated by the charging pile according to the charging preparation message signal.

[0094] In an embodiment of the present application, the obtaining of the charging state information of the whole vehicle and the discharge state information of the charging pile comprises:

[0095] The discharge state information of the charging pile is obtained based on the fast charging message signal, and the discharge state information of the charging pile includes the discharge current of the charging pile and the discharge voltage of the charging pile.

[0096] The charging current of the whole vehicle and the charging voltage of the whole vehicle are obtained.

[0097] The charging state information of the whole vehicle is generated based on the charging current of the whole vehicle and the charging voltage of the whole vehicle.

[0098] Specifically, the charging preparation message signal in the embodiment of the application also refers to the BDC message, the BDC message indicates that the current vehicle has the V2G charging and discharging function, and in this embodiment, it represents that the vehicle has the V2G charging function. At this time, the vehicle controller VCU replies to the V2G charging pile with the BDC message. After the V2G charging pile receives the BDC message, the CDC message is stopped, the A+ level signal is stopped, and after the A+ is stopped, the vehicle controller VCU starts the countdown processing. After the countdown ends, if the CHM message (wherein the CHM message represents the software version number of the pile) sent by the V2G charging pile is still not received, the vehicle controller VCU ends the process.

[0099] It should be noted that the time of the countdown can be set according to actual needs, which is not limited herein. In the embodiment of the application, the time of the countdown is 6 seconds, that is, after the V2G charging pile receives the BDC message, the CDC message is stopped, the A+ level signal is stopped, and after the A+ is stopped, the vehicle controller VCU starts the countdown processing for 6 seconds. After 6 seconds, if the CHM message (wherein the CHM message represents the software version number of the pile) sent by the V2G charging pile is still not received, the vehicle controller VCU ends the process.

[0100] If the V2G charging pile starts to send the CHM message after the CDC message is stopped, the vehicle controller VCU replies with the BHM message, and the BHM message represents the highest charging voltage of the vehicle.

[0101] The vehicle controller VCU requests the battery management system to be high-voltage, and closes the main positive and main negative relays; after the battery management system closes the relays, a state signal is fed back to the vehicle controller VCU. The V2G charging pile sends the CRM message, and the CRM message refers to the feedback state signal of the vehicle controller VCU, that is, the configuration information confirmation message of the V2G charging pile. At this time, the vehicle controller VCU replies to the V2G charging pile with the BRM message, and the BRM message refers to the charging parameter configuration information of the vehicle, including the battery type and the like.

[0102] After the vehicle controller VCU receives the CRMAA message at the V2G charging pile end, the BRM message is stopped, and the BCP message and the extended message BCPP are started to be sent, the BCP message refers to the power battery charging parameter message, and the extended message BCPP is the extended message of the BCP message, which is a conventional technology.

[0103] The V2G charging pile starts to send the CML message and the extended message CMLP, the CML message represents the maximum output capacity of the charging pile, and the vehicle controller VCU sends the BRO00 message. The CML message and the BRO00 message are mutually responsive message signals.

[0104] The vehicle controller VCU requests the battery management system to close the relay, in preparation for fast charging. After the battery management system closes the relay, a feedback status signal is sent to the vehicle controller VCU; the vehicle controller VCU sends a BROAA message to the V2G charging pile.

[0105] The V2G charging pile closes its internal output relay and sends a CCS and CCD message. If the CCD message content is discharge, it means that the V2G charging pile is ready for discharge. If the CCD message content is charge, it means that the V2G charging pile at the pile end is ready for charging.

[0106] Further, by obtaining the charging current of the vehicle and the charging voltage of the vehicle and generating the charging status information of the vehicle based on the charging current of the vehicle and the charging voltage of the vehicle, a charging status message BCS can be obtained.

[0107] In an embodiment of the present application, the method further comprises:

[0108] Generating a charging information statistical report based on the charging status information of the vehicle and the discharge status information of the charging pile;

[0109] If a charging information statistical request instruction sent by the charging pile is received, a charging information statistical report corresponding to the charging information statistical request instruction is sent to the charging pile.

[0110] Specifically, the vehicle controller VCU sends the current and voltage corresponding to the charging request of the vehicle, i.e., a BCL message. The BCL message refers to the charging status information of the vehicle and the discharge status information of the charging pile. At the same time, the charging status message BCS, i.e., the charging information statistical request instruction corresponding to the charging information statistical report, is received.

[0111] During the charging process, the vehicle continuously sends BCL, BCS and BSM charging information statistical messages. The charging information statistical report refers to the BSM charging information statistical message.

[0112] In the technical solution of the embodiment of the present application, a chargeable and dischargeable detection instruction can be sent to the charging pile, i.e., it is determined whether the current charging pile has the function of discharging to the power grid. After obtaining the dischargeable message signal sent by the charging pile, it is confirmed that the current charging pile has the function of discharging to the power grid. The relay of the vehicle is closed by the battery management system, and a discharge preparation message signal is sent to the charging pile, to prompt that the current vehicle can discharge to the charging pile.

[0113] When a fast discharge message signal sent by the charging pile is received, it means that the charging pile can receive the discharge of the vehicle and discharge to the power grid according to the V2G discharge message signal sent by the vehicle, and the direct current sent by the vehicle is inverted into alternating current to discharge to the power grid.

[0114] The vehicle control method based on V2G provided by the embodiment of the application can make the vehicle discharge to the power grid in the unstable state of the power grid through the V2G technology to improve the stability and safety of the power grid, without manual intervention, reduce the processing cost, and improve the efficiency of the power grid stability repair processing.

[0115] Figure 3 A block diagram of a vehicle control device 300 based on V2G according to an embodiment of the application is shown. The vehicle control device 300 based on V2G according to an embodiment of the application includes a first sending unit 301, a second sending unit 302, and a discharging unit 303.

[0116] The first sending unit 301 is configured to send a chargeable and dischargeable detection instruction to a charging pile.

[0117] The second sending unit 302 is configured to, if a dischargeable message signal sent by the charging pile is received, close a relay of the vehicle through a battery management system and send a discharge preparation message signal to the charging pile; the dischargeable message signal is generated by the charging pile according to the chargeable and dischargeable detection instruction.

[0118] The discharging unit 303 is configured to, if a fast discharging message signal sent by the charging pile is received, discharge to the charging pile and send a V2G discharging message signal, so that the charging pile discharges to the power grid according to the V2G discharging message signal; the fast discharging message signal is generated by the charging pile based on a voltage detection value of the power grid and the discharge preparation message signal.

[0119] In an embodiment of the application, based on the foregoing scheme, the second sending unit 302 is configured to, if the dischargeable message signal sent by the charging pile is received, generate a corresponding discharging instruction based on the dischargeable message signal; close the relay of the vehicle through the battery management system based on the discharging instruction and send the discharge preparation message signal to the charging pile.

[0120] In an embodiment of the application, based on the foregoing scheme, the second sending unit 302 is configured to close the relay of the vehicle based on the discharging instruction, generate dischargeable state information of the vehicle, generate the discharge preparation message signal according to the dischargeable state information, and send the discharge preparation message signal to the charging pile.

[0121] In an embodiment of the present application, based on the foregoing scheme, the V2G-based vehicle control device further comprises a first acquisition unit configured to, if the discharge information statistical message signal sent by the charging pile is received, acquire first discharge information of the vehicle to the charging pile and second discharge information of the charging pile to the power grid based on the discharge information statistical message signal; the discharge information statistical message signal is generated by the charging pile according to the V2G discharge message signal; a first generation unit configured to generate a discharge information statistical report based on the first discharge information and the second discharge information; and a third sending unit configured to send the discharge information statistical report to a terminal.

[0122] In an embodiment of the present application, based on the foregoing scheme, the V2G-based vehicle control device further comprises a closing unit configured to, if the chargeable message signal sent by the charging pile is received, close the relay of the vehicle through the battery management system and send a charging preparation message signal to the charging pile; wherein the chargeable message signal is generated by the charging pile according to the chargeable and dischargeable detection instruction; a second acquisition unit configured to, if the fast charging message signal sent by the charging pile is received, charge the vehicle and acquire charging state information of the vehicle and discharge state information of the charging pile; wherein the fast charging message signal is generated by the charging pile according to the charging preparation message signal.

[0123] In an embodiment of the present application, based on the foregoing scheme, the second acquisition unit is configured to: acquire the discharge state information of the charging pile based on the fast charging message signal, the discharge state information of the charging pile including a discharge current of the charging pile and a discharge voltage of the charging pile; acquire a charging current of the vehicle and a charging voltage of the vehicle; and generate the charging state information of the vehicle based on the charging current of the vehicle and the charging voltage of the vehicle.

[0124] In an embodiment of the present application, based on the foregoing scheme, the V2G-based vehicle control device further comprises a second generation unit configured to generate a charging information statistical report based on the charging state information of the vehicle and the discharge state information of the charging pile; and a fourth sending unit configured to, if a charging information statistical request instruction sent by the charging pile is received, send a charging information statistical report corresponding to the charging information statistical request instruction to the charging pile.

[0125] As another aspect, the present application also provides a computer readable storage medium having stored thereon a program product capable of implementing the method provided by the present application. In some possible implementation manners, various aspects of the present application can also be implemented in the form of a program product, which includes program codes for causing an end device to perform the steps described in the above "Embodiment Method" section according to various exemplary embodiments of the present application when the program product is run on the end device.

[0126] The program product for implementing the above method according to the embodiments of the present application can take a portable compact disc read-only memory (CD-ROM) and include program codes, and can be run on an end device, such as a personal computer. However, the program product of the present application is not limited to this, and in the present document, the readable storage medium can be any tangible medium containing or storing a program, which can be used by or in conjunction with an instruction execution system, apparatus or device.

[0127] The program product can take any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium, for example, can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above. More specific examples (non-exhaustive list) of the readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0128] The computer readable signal medium can include a data signal propagated in a baseband or as a part of a carrier wave, in which readable program codes are borne. Such a propagated data signal can take multiple forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The readable signal medium can also be any readable medium that is not a readable storage medium, which can send, propagate or transmit the program for use by or in conjunction with an instruction execution system, apparatus or device.

[0129] The program codes contained on the readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

[0130] The program code may be implemented in any of various ways, including procedure-based, object-based, and / or class-based techniques. In procedure-based techniques, the program code executes a sequence of procedures that are not always related to each other. In object-based techniques, the program code executes a sequence of object-based procedures that are always based on a predefined set of objects over which the procedures operate. In class-based techniques, the program code executes a sequence of object-based procedures which are always based on a predefined set of objects over which the procedures operate. Of course, one or more program codes may be implemented in various ways, including procedure-based, object-based, and / or class-based techniques.

[0131] As another aspect, the present application also provides an electronic device capable of implementing the above method.

[0132] Those skilled in the art can understand that various aspects of the present application can be implemented as a system, a method or a program product. Therefore, various aspects of the present application can be embodied as a whole hardware embodiment, a whole software embodiment (including firmware, microcode, etc.), or an embodiment combining software and hardware aspects, which can be collectively referred to as "circuitry", "module" or "system" herein.

[0133] The electronic device 400 according to this embodiment of the present application will be described below with reference to Figure 4 The electronic device 400 is merely an example and should not impose any limitation on the function and use range of the embodiments of the present application. Figure 4 The electronic device 400 is merely an example and should not impose any limitation on the function and use range of the embodiments of the present application.

[0134] As shown in Figure 4 The components of electronic device 400 may, include, but are not limited to, the at least one processing unit 410 described above, the at least one storage unit 420 described above, a bus 430 connecting different system components, including the storage unit 420 and the processing unit 410.

[0135] The storage unit stores program code which can be executed by the processing unit 410, so that the processing unit 410 performs the steps described in the above "Embodiment Method" section according to various exemplary embodiments of the present application.

[0136] The storage unit 420 can include a readable medium in the form of a volatile storage unit, such as a random access memory (RAM) 421 and / or a cache memory 422, and can further include a read-only memory (ROM) 423.

[0137] The storage unit 420 also includes a number of program modules 425 that are stored in the memory 422, including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or a combination of which can include implementation of a network environment.

[0138] The bus 430 can represent one or more of several types of bus structures, including a memory bus or memory bus control, a peripheral bus, an accelerated graphics port, a processor or local bus using any of a variety of bus structures.

[0139] The electronic device 400 can also communicate with one or more external devices 1200 such as a keyboard or pointing device, a Bluetooth device, etc.; other devices that enable a user to interact with the electronic device 400; and / or one or more devices that enable the electronic device 400 to communicate with one or more other computing devices. Such communication can be facilitated by an Input / Output (I / O) interface 450. Still yet, the electronic device 400 can communicate with one or more networks, such as a local area network (LAN), a wide area network (WAN), and / or the Internet, through a network adapter 460. As depicted, the network adapter 460 communicates with the other components of the electronic device 400 through the bus 430. It should be appreciated that although not shown, other hardware and / or software modules could be used in connection with the electronic device 400. These include, but are not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0140] Those skilled in the art will readily appreciate that the example embodiments described herein can be implemented by software and / or firmware in addition to the necessary hardware, and that the technical solutions according to the embodiments of the present application can be embodied in a software product. This software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB, a mobile hard disk, etc.) or a network, and includes one or more instructions for causing a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to perform the methods according to the embodiments of the present application.

[0141] In addition, the above-described figures are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above-described figures do not indicate or limit the time sequence of the processes. In addition, it will also be readily appreciated that the processes can be executed synchronously or asynchronously, for example, in a plurality of modules.

[0142] It is to be understood that the application is not limited to the precise construction already described above and shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A vehicle control method based on V2G, characterized in that, The method includes: Send a chargeable / dischargeable detection command to the charging station; If a dischargeable message signal is received from the charging pile, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile; the dischargeable message signal is generated by the charging pile according to the chargeable / dischargeable detection command; the dischargeable message signal is used to indicate that the charging pile has the function of discharging to the grid; If a fast discharge message signal is received from the charging pile, the charging pile discharges to the charging pile and sends a V2G discharge message signal, so that the charging pile discharges to the power grid according to the V2G discharge message signal; wherein, the fast discharge message signal is generated by the charging pile based on the discharge preparation message signal when it detects that the voltage detection value of the power grid is lower than a preset stable value; If a dischargeable message signal is received from the charging pile, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile, including: If a dischargeable message signal is received from the charging pile, a corresponding discharge command is generated based on the dischargeable message signal. Based on the discharge command, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile.

2. The vehicle control method based on V2G according to claim 1, characterized in that, The step of closing the vehicle's relays and sending a discharge preparation message signal to the charging pile based on the discharge command through the battery management system includes: Based on the discharge command, the relays of the entire vehicle are closed, and the dischargeable status information of the entire vehicle is generated; The discharge preparation message signal is generated based on the dischargeable state information; Send a discharge preparation message signal to the charging pile.

3. The vehicle control method based on V2G according to claim 2, characterized in that, After discharging to the charging pile and sending a V2G discharge message signal, the method further includes: If a discharge information statistics message signal is received from the charging pile, the first discharge information of the vehicle to the charging pile and the second discharge information of the charging pile to the power grid are obtained based on the discharge information statistics message signal; the discharge information statistics message signal is generated by the charging pile based on the V2G discharge message signal; A discharge information statistical report is generated based on the first discharge information and the second discharge information. Send the discharge information statistical report to the terminal.

4. The vehicle control method based on V2G according to claim 1, characterized in that, After sending the chargeable / dischargeable detection command to the charging pile, the method further includes: If a rechargeable message signal is received from the charging pile, the battery management system closes the relay of the vehicle and sends a charging preparation message signal to the charging pile; wherein, the rechargeable message signal is generated by the charging pile according to the chargeable / dischargeable detection command; If a fast charging message signal is received from the charging pile, the vehicle is charged and the charging status information of the vehicle and the discharging status information of the charging pile are obtained. The fast charging message signal is generated by the charging pile based on the charging preparation message signal.

5. The vehicle control method based on V2G according to claim 4, characterized in that, The acquisition of the charging status information of the vehicle and the discharging status information of the charging pile includes: The discharge status information of the charging pile is obtained based on the fast charging message signal. The discharge status information of the charging pile includes the discharge current and the discharge voltage of the charging pile. Obtain the charging current and charging voltage of the vehicle; The charging status information of the vehicle is generated based on the charging current and charging voltage of the vehicle.

6. The vehicle control method based on V2G according to claim 4, characterized in that, After obtaining the discharge status information of the charging pile based on the fast charging message signal, the method further includes: A charging information statistical report is generated based on the charging status information of the vehicle and the discharging status information of the charging pile. If a charging information statistics request instruction is received from a charging pile, a charging information statistics report corresponding to the charging information statistics request instruction is sent to the charging pile.

7. A vehicle control device based on V2G, characterized in that, The device includes: The first transmitting unit is used to send chargeable / dischargeable detection commands to the charging pile; The second transmitting unit is used to close the vehicle's relays through the battery management system and send a discharge preparation message signal to the charging pile if it receives a dischargeable message signal sent by the charging pile; the dischargeable message signal is generated by the charging pile according to the chargeable / dischargeable detection command; The discharge unit is used to discharge to the charging pile and send a V2G discharge message signal if it receives a fast discharge message signal sent by the charging pile, so that the charging pile discharges to the power grid according to the V2G discharge message signal; wherein, the fast discharge message signal is generated by the charging pile based on the discharge preparation message signal when it detects that the voltage detection value of the power grid is lower than a preset stable value; If a dischargeable message signal is received from the charging pile, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile, including: If a dischargeable message signal is received from the charging pile, a corresponding discharge command is generated based on the dischargeable message signal. Based on the discharge command, the battery management system closes the vehicle's relays and sends a discharge preparation message signal to the charging pile.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one piece of program code, which is loaded and executed by a processor to perform the operations performed by the method as described in any one of claims 1 to 6.

9. An electronic device, characterized in that, The electronic device includes one or more processors and one or more memories, wherein at least one piece of program code is stored in the one or more memories, and the at least one piece of program code is loaded and executed by the one or more processors to perform the operation performed by the method as described in any one of claims 1 to 6.

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