Method and device compatible with communication of different types of bicycle piles and medium

Abstract

The invention belongs to the technical field of new energy charging, and discloses a communication method and device compatible with different types of bicycle piles, and a medium. According to the method, the standard version of the electric vehicle conduction charging system is firstly adapted, then physical connection with the electric vehicle is established according to the standard version of the electric vehicle conduction charging system, the communication standard version parameter Vs is obtained through the CAN bus, the communication standard versions are respectively adapted according to the specific numerical value of the Vs parameter, and vehicle pile communication is completed after the standard is determined. The system only initializes the program branch of the current adaptive standard, does not activate other branches to avoid occupying resources, can solve the problem of communication compatibility of the multi-standard getting-off pile, improves the resource utilization rate and charging safety, optimizes the system performance, and assists the popularization of the charging pile.

Description

Technical Field

[0001] This invention belongs to the field of new energy charging technology, and in particular relates to a method, device and medium compatible with different types of vehicle-charging pile communication. Background Technology

[0002] With the continuous advancement of the electric vehicle industry, electric vehicle technology is increasingly exhibiting trends towards digitalization, intelligence, and networking. Digitalization of vehicle control greatly enriches vehicle control information, optimizes control processes, reduces manufacturing costs, and provides a solid digital foundation for precise real-time vehicle control. Intelligent vehicle control allows for the customization of various vehicle control strategies based on driving environments and passenger needs, better catering to passenger driving habits and providing a convenient and comfortable riding experience. Networked vehicle control can collaborate with various vehicle-to-everything (V2X) transmission media such as 5G and satellite communication to provide vehicles with real-time pedestrian, vehicle, and road network information, offering passengers a variety of communication services and entertainment experiences.

[0003] Electric vehicle charging technology is constantly evolving, and vehicle-to-charging-pile communication standards are being updated in tandem. On the one hand, new technologies and standards are constantly emerging; on the other hand, more and more vehicles are adopting older standards. The coexistence of multiple vehicle-to-charging-pile communication standards in the market frequently leads to incompatibility between vehicles and charging piles, resulting in insufficient resource utilization, poor user experience, and hindering the promotion of charging pile products.

[0004] Prior art with publication number CN113147487A discloses a charging adaptation method for electric vehicles, including the following steps: Step S1. The vehicle enters the charging station for charging. After the customer starts charging, the local charging system performs a standard compatibility test on the vehicle according to the program logic to determine whether it meets the new national standard or the old national standard charging standard, and performs the corresponding standard charging handshake docking. Step S2. The local charging system enters the charging handshake protocol docking according to the national standard protocol and requests the vehicle to reply with a handshake message. If the vehicle replies with a handshake message, the charging adaptation will be carried out in accordance with the national standard protocol. Step S3. If the vehicle does not respond with a handshake message, it is determined to be another national standard protocol. During the charging process, the vehicle identification stage CRM is entered according to the other national standard protocol to perform charging adaptation. Step S4. If a charging pile cannot be used to charge a vehicle normally, the cloud platform system will indirectly connect to the charging equipment module through the centralized control device to obtain abnormal status data on site. Step S5. The cloud platform system performs data analysis on the acquired abnormal status data. The analysis process is as follows: compare the charging status with the database of similar vehicle models, and judge the vehicle problem based on the charging data status of this vehicle model displayed in the vehicle database; read and analyze the recorded abnormal charging points of the vehicle to see at which stage the abnormal point appears.

[0005] Therefore, it is evident that the existing technology's adaptation logic can only handle the broad classification of old and new national standards, failing to accurately match multiple versions of subdivided standards. This leads to communication incompatibility issues between vehicles using standards such as GB / T18487.5 or group standards and charging piles, resulting in low resource utilization and a poor user charging experience. Furthermore, the technology lacks differentiated identification processes tailored to the characteristics of different conductive charging system standards, and the existing unified identification timing cannot meet such specific needs, resulting in low adaptation efficiency and potential safety hazards. The technology also fails to address the fine-grained management of different standard adaptation program branches, loading all supported standard program branches upon startup and calling them as needed. This leads to excessive RAM usage, insufficient system resources, and impacts the real-time performance of charging control. Inactive program branches remain in a pre-initialized state, potentially causing resource conflicts with the currently running branch and reducing adaptation stability. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a method, device, and medium for compatible vehicle-to-charging-pile communication across different standards. This invention first adapts to the standard version of the electric vehicle conductive charging system, then establishes a physical connection with the EV based on that standard. It obtains the communication standard version parameter Vs via the CAN bus, and then adapts to different communication standard versions based on the specific value of the Vs parameter. Once the standard is determined, vehicle-to-charging-pile communication is completed. The system only initializes the program branch for the currently adapted standard, avoiding the activation of other branches to prevent resource consumption. This solves the vehicle-to-charging-pile communication compatibility problem under multiple standards, improves resource utilization and charging safety, optimizes system performance, and facilitates the promotion of charging piles.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A first aspect of the present invention provides a method for compatible vehicle-to-pile communication, comprising the following steps: Step S1, Charging Pile Standard Version Configuration Steps: When the charging pile leaves the factory, the standard version of the electric vehicle conductive charging system is set through hardware. If the standard version of the electric vehicle conductive charging system set at the factory is GB / T18487.1, then the communication standard adaptation between the electric vehicle and the charging pile under GB / T18487.1 is performed; if the standard version of the electric vehicle conductive charging system set at the factory is GB / T18487.5, then the communication standard adaptation between the electric vehicle and the charging pile under GB / T18487.5 is performed. Step S2, the communication standard adaptation step between the electric vehicle and the charging pile: according to the standard version of the electric vehicle conductive charging system, obtain the communication standard parameter Vs from the CAN bus, and adapt the communication standard between the electric vehicle and the charging pile according to the communication standard parameter Vs. Step S3, communication between the trolley and the charging station: After determining the communication standard between the trolley and the charging station, communication between the trolley and the charging station is carried out through the communication standard.

[0008] A second aspect of the present invention provides an electronic device including a memory 102, a processor 101, a display module 103, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps described in any of the preceding methods for compatible vehicle-to-pile communication.

[0009] A third aspect of the present invention provides a readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the preceding methods for compatible vehicle-to-pile communication.

[0010] The beneficial effects of this invention are as follows: By pre-setting the charging pile to either GB / T18487.1 or GB / T18487.5 electric vehicle conductive charging system standard versions in the hardware at the factory, and then combining this with the CAN bus to obtain the communication standard parameter Vs for differentiated adaptation, and only initializing and running the program branch of the currently adapted standard, it achieves accurate compatibility with multiple versions of the GB / T27930 series national standard and the group standard T / GAEPA002-2023, solving the vehicle-charging pile communication compatibility problem under the coexistence of multiple standards, improving resource utilization and user charging experience. At the same time, the differentiated identification process meets the security requirement of GB / T18487.5 for priority confirmation of communication parameters, while avoiding the occupation of system resources by inactive program branches, optimizing RAM space occupation and program execution efficiency, ensuring the real-time performance and adaptation stability of charging control, which is conducive to the promotion of charging pile products and helps the development of the new energy vehicle industry. Attached Figure Description

[0011] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A flowchart illustrating the method of this invention; Figure 2 This is a schematic diagram of the device structure of the present invention. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this application and in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0015] Example 1, such as Figure 1 The method shown is compatible with different types of vehicle-to-pile communication, and includes the following steps: Step S1, charging pile standard version configuration steps: When the charging pile leaves the factory, the standard version of the electric vehicle conductive charging system is set through hardware. If the standard version of the electric vehicle conductive charging system set by the factory is GB / T18487.1, then the communication standard adaptation between electric vehicle and charging pile under GB / T18487.1 will be performed; the relevant program branches of GB / T18487.5 will not be started to reduce RAM resource usage.

[0016] Step S2, the communication standard adaptation step between the electric vehicle and the charging pile: Based on the standard version of the electric vehicle conductive charging system, obtain the communication standard parameters Vs from the CAN bus, and adapt the communication standard between the electric vehicle and the charging pile according to the communication standard parameters Vs; the specific steps are as follows: Step S21: The user inserts the electric vehicle charging gun into the charging pile interface, and the charging pile and the electric vehicle establish a physical connection. The user starts the charging function in the APP or the charging pile human-machine interface. The charging pile main controller receives the start signal and automatically turns on the low-voltage auxiliary power supply to provide basic power for CAN bus communication. Step S22: The charging pile system sends a request command through the CAN bus (communication rate 250kbps) to establish a connection with the battery management system of the electric vehicle. Based on the vehicle messages that are not acquired or are acquired, the communication standard version parameter Vs for this interaction is determined. Step S23: Adapt the communication standard between the trolley and the charging station according to the communication standard version parameter Vs. The specific communication standard adaptation is as follows: Step S231: If Vs=SC1, execute the communication standard of group standard T / GAEPA002-2023 and perform initialization; do not start the adaptation program branches of related communication standards of GB / T27930-2015, GB / T27930-2023, and GB / T27930-2011 to reduce RAM resource consumption; Step S232: If Vs=V1.1.0, then execute the communication standard GB / T27930-2015 or GB / T27930-2023 and initialize it. The system is automatically compatible with the two versions of the national standard and prioritizes communication according to the higher version protocol supported by the vehicle. The T / GAEPA002-2023 and GB / T27930-2011 related communication standard adaptation program branches are not started to reduce RAM resource consumption. Step S233: If Vs=V1.0, execute the communication standard of GB / T27930-2011 and perform initialization; do not start the related communication standard adapter program branches of T / GAEPA002-2023, GB / T27930-2015, and GB / T27930-2023 to reduce RAM resource usage.

[0017] Step S3, communication steps between the electric vehicle and the charging pile: After determining the communication standard between the electric vehicle and the charging pile, the main controller sequentially executes the handshake stage, parameter configuration stage, charging stage, and charging end stage between the electric vehicle and the charging pile through the communication standard. Under the GB / T27930-2015 or GB / T27930-2023 standards, the specific implementation for each stage is as follows: Handshake phase: The charging pile and the vehicle-mounted BMS exchange handshake messages to confirm that the communication link between the two parties is unobstructed, and the vehicle-side insulation monitoring allows voltage, vehicle and battery information.

[0018] Parameter configuration phase: The charging pile sends charging parameters such as maximum output current and voltage to the vehicle BMS, receives battery cell information, current voltage of the vehicle charging system, battery SOC (State of Charge) and other information from the vehicle, and negotiates and determines charging limit parameters, such as output voltage not exceeding 800V and current not exceeding 250A, or output voltage 220V and current 32A.

[0019] Charging phase: After the parameters are confirmed and both parties are ready, the charging pile closes the main circuit switch and begins to supply electrical energy to the vehicle. The vehicle sends the required voltage and current in real time through the CAN bus, and the charging pile transmits charging current, voltage and other data in real time through the CAN bus to dynamically adjust the output power and ensure charging safety.

[0020] Charging completion phase: When the vehicle BMS detects that the battery SOC has reached 100% or the user triggers a stop charging command, both parties send a stop message, the charging pile disconnects the main circuit switch, shuts off the low-voltage auxiliary power supply, completes the charging process, and generates a charging record.

[0021] Compared to GB / T27930-2015, GB / T27930-2023 includes more detailed specifications regarding system architecture, physical connections, and new functions. For example: GB / T27930-2015 is a single communication system with the nodes being a charger and a BMS. GB / T27930-2023 is divided into Class A systems (compatibility optimization) and Class B systems (functional extension). The system described in this invention is a Class A system. GB / T27930-2015 does not explicitly specify the physical cable, while GB / T27930-2023 specifies the use of shielded twisted pair and unshielded twisted pair cables and clarifies the requirements for terminating resistance. GB / T27930-2015 supports the basic charging process, while GB / T27930-2023 introduces advanced functional modules such as authentication, scheduled charging, plug-and-charge, and discharging for Class B systems.

[0022] Under the T / GAEPA002-2023 standard, the specific implementation for each stage is as follows: Handshake Phase: First, the charging pile sends a handshake start message containing the device number and the charger communication protocol version number at a 250ms cycle. After receiving the message, the vehicle BMS returns a response message containing the battery type and the maximum withstand voltage within 100ms, simultaneously verifying the consistency of the protocol version and confirming that the low-voltage communication link is working properly and that the protocols of both parties are compatible.

[0023] Parameter configuration phase: During the parameter configuration phase, the vehicle controller and the equipment controller interact by setting their output capabilities and maximum allowed input capabilities.

[0024] During the charging phase: The charging pile first performs a high-voltage circuit insulation test, using the smaller of the maximum allowable charging voltage fed back by the BMS and its own rated voltage as the test voltage. The insulation resistance between the DC+ and DC- buses and the PE is measured, and the ratio of insulation resistance to the test voltage must meet the standard R≥500Ω / V. After confirming no insulation faults, the high-voltage circuit continuity is tested. Once the risk of a short circuit is eliminated, the pre-charging process is initiated. The pre-charging function gradually increases the circuit voltage to 10V below the battery's rated voltage before closing the main contactor to prevent damage to the battery and contactor from a sudden voltage surge. After pre-charging is complete, the charging pile closes the high-voltage main contactor and begins energy transfer, sending CCS messages containing real-time output voltage, current, and cumulative charging time at 50ms intervals. The vehicle-mounted BMS sends BCL messages containing real-time demand current adjustment values ​​at 50ms intervals and BCS messages containing SOC, battery temperature, and highest single-cell voltage at 250ms intervals.

[0025] Charging completion stage: When the battery SOC reaches the user-preset threshold or the user triggers a stop command, the charging module output is turned off; or if an anomaly is detected, such as individual cell voltage differences or a sudden drop in insulation resistance, the vehicle BMS sends a BST end message, and the charging pile receives it and sends a CST confirmation message, turns off the charging module output, disconnects the high-voltage main contactor, starts the discharge circuit to reduce the high-voltage circuit voltage to a safe value of ≤60V, and the two parties exchange statistical data messages containing cumulative power, charging time, and battery temperature changes. After confirming data synchronization, the low-voltage auxiliary power supply is disconnected, the electronic lock is unlocked, and a charging record is generated.

[0026] Under the GB / T27930-2011 standard, the specific implementation at each stage is as follows: Handshake Phase: The charging pile and the vehicle-mounted BMS exchange handshake messages through the GB / T27930-2011 protocol. The charging pile sends a charger identification message every 250ms. After receiving the message, the vehicle-mounted BMS returns a response message containing the communication version. No additional function negotiation is required; only the connectivity of the basic communication link is confirmed.

[0027] Parameter configuration phase: During the parameter configuration phase, the vehicle controller and the equipment controller interact by setting their output capabilities and maximum allowed input capabilities.

[0028] During the charging phase: The charging pile first performs a high-voltage circuit insulation test, using the smaller of the maximum allowable charging voltage fed back by the BMS and its own rated voltage as the test voltage. The insulation resistance of the DC+ and DC- buses to PE is measured, and the ratio of insulation resistance to test voltage must meet the standard R≥500Ω / V. After confirming that there is no insulation fault, the high-voltage circuit continuity is tested. After eliminating the risk of short circuit, the pre-charging process is started. The circuit voltage is gradually increased to 10V lower than the battery's rated voltage through the pre-charging function, and then the main contactor is closed to avoid damage to the battery and contactor from a sudden voltage rise. After the pre-charging is completed, the charging pile closes the high-voltage main contactor to start energy transmission, sending output voltage and output current at a 50ms cycle. The vehicle BMS sends the required voltage and required current at a 50ms cycle. There is no real-time current demand adjustment signal interaction. The output parameters remain fixed during the charging process, and only basic faults such as output overvoltage and overcurrent are monitored.

[0029] Charging completion stage: When the battery SOC reaches 100% or the user triggers a stop command, the vehicle and the charging pile send a stop message to each other. The charging pile disconnects the high-voltage main contactor and shuts down the charging module output. No complex discharge process control is required. Only the low-voltage auxiliary power supply is disconnected, the electronic lock is unlocked, and detailed data statistics such as basic charging records containing only charging time and cumulative power are generated.

[0030] Example 2, as Figure 1 The method shown is compatible with different types of vehicle-to-pile communication, and includes the following steps: Step S1, charging pile standard version configuration steps: When the charging pile leaves the factory, the standard version of the electric vehicle conductive charging system is set through hardware. If the standard version of the electric vehicle conductive charging system set at the factory is GB / T18487.5, then the communication standard adaptation between electric vehicle and charging pile under GB / T18487.5 will be performed; the relevant program branches of GB / T18487.1 will not be started to reduce RAM resource usage.

[0031] Step S2, the communication standard adaptation step between the electric vehicle and the charging pile: Based on the standard version of the electric vehicle conductive charging system, obtain the communication standard parameters Vs from the CAN bus, and adapt the communication standard between the electric vehicle and the charging pile according to the communication standard parameters Vs; the specific steps are as follows: In step S21, the user completes the physical connection of the charging gun. The charging pile system does not need to wait for the user to start the charging function. It directly obtains the communication standard version parameter Vs of the vehicle BMS through the high-voltage CAN bus (communication rate 250kbps). Step S22: First, check if the communication standard version parameter Vs is V2.0.0. If Vs=V2.0.0, then execute the communication standard of GB / T27930-2024; if not, then perform the branch of adapting the communication standard between the trolley and the charging pile according to the communication standard version parameter Vs to reduce RAM resource consumption. If Vs≠V2.0.0, the communication standard between the trolley and the charging pile will be adapted according to the communication standard version parameter Vs. The communication standard branch program of GB / T27930-2024 will not be started to reduce RAM resource consumption. The specific adaptation is as follows: Step S221: If Vs=SC1, execute the communication standard of the group standard T / GAEPA002-2023 and perform initialization; do not start the adaptation program branches of the relevant communication standards of GB / T27930-2015, GB / T27930-2023, and GB / T27930-2011 to reduce RAM resource consumption; Step S222: If Vs=V1.1.0, then execute the communication standard GB / T27930-2015 or GB / T27930-2023 and initialize it. The system is automatically compatible with the two versions of the national standard and prioritizes communication according to the higher version protocol supported by the vehicle. The T / GAEPA002-2023 and GB / T27930-2011 related communication standard adaptation program branches are not started to reduce RAM resource consumption. In step S223, if Vs=V1.0, the communication standard of GB / T27930-2011 is executed and initialized; the related communication standard adapter branches of T / GAEPA002-2023, GB / T27930-2015, and GB / T27930-2023 are not started to reduce RAM resource usage.

[0032] Step S3: Communication steps between the EV and the charging pile. After determining the communication standard between the EV and the charging pile, if the communication standard version parameter Vs is not V2.0.0, the main controller will sequentially execute the handshake phase, parameter configuration phase, charging phase, and charging end phase through the communication standard after the user starts charging. Otherwise, the charging pile system will sequentially negotiate functions through the communication standard after the user starts charging to determine the functions to be executed in this charging scenario: parameter configuration phase, charging circuit detection, pre-charging and energy transmission, and charging end.

[0033] Under the GB / T27930-2024 standard, the specific implementation at each stage is as follows: Confirm your charging needs on the charging station's control screen or the vehicle's onboard terminal. The charger sends a version negotiation message via the CAN bus (communication rate 250kbps). After receiving the message, the vehicle BMS returns a version negotiation response to determine the communication standard version for this interaction.

[0034] Functional negotiation phase: The charging pile and the vehicle BMS communicate via functional negotiation messages to clarify the functions to be executed during the charging phase, ensuring functional compatibility between the two parties. The charging station sends all its supported functions to the vehicle, which then selects the charging function for this interaction according to its own strategy. The vehicle determines the outcome of the negotiation. Both parties then exchange information according to the successfully negotiated functional modules.

[0035] Parameter configuration phase: Based on functional negotiation, the charging pile and the vehicle-mounted BMS conduct bidirectional negotiation around the core parameters of high-voltage charging to ensure that the parameters meet the hardware capabilities and safety thresholds of both parties. The charging pile sends charging parameters, including the maximum and minimum output voltage and current, to the vehicle. After receiving the parameter message from the vehicle, the charging pile determines whether the vehicle parameters match. If the parameters match, the two parties proceed to the next stage of information exchange; if the parameters do not match, a stop message is sent.

[0036] Charging circuit testing phase: Based on the safety requirements of high-voltage circuits in GB / T18487.5 and combined with the refined testing logic of GB / T27930-2024, the charging pile performs insulation resistance testing, circuit continuity testing, contactor status verification, and testing of the feedback signal of the main contactor.

[0037] Pre-charge and energy transfer stage: Pre-charge process: To avoid damage to the battery from sudden voltage rise, follow the pre-charge timing requirements of GB / T18487.5, combined with the stepped pre-charge control of GB / T27930-2024: After receiving the vehicle's ready status parameter value, the charging pile detects that the vehicle's current voltage is normal and then activates the module for pre-charging. Energy transfer: Dynamic adjustment ensures fast charging safety. The charging pile closes the high-voltage main contactor and initiates energy transfer according to the negotiated parameters. The charging pile sends a vehicle charging demand message every 50ms, and the on-board BMS sends a battery status message every 50ms. According to the dynamic power adjustment mechanism of GB / T27930-2024, if the charging pile's output capacity increases, it first sends the dynamically adjusted output capacity value to the vehicle, and then adjusts the output current to increase according to the vehicle's needs; if the charger's output capacity decreases, it directly adjusts the output current to decrease and simultaneously sends an output capacity adjustment message.

[0038] Charging Completion Stage: The vehicle's BMS detects that the State of Charge (SOC) has reached the target value and sends a vehicle stop message to the charging pile; the user triggers a stop charging command via the charging pile's control panel or mobile app; the scheduled charging end time is reached; a termination command is issued, and upon receiving the termination command, the charging pile reduces the output current until the current value reaches 0A, while simultaneously sending a stop message to the vehicle. The vehicle's BMS adjusts the battery receiving status accordingly; the high-voltage main contactor is disconnected, and the high-voltage discharge circuit is activated to ensure the voltage drops to a safe value within 3 seconds, before disconnecting the high-voltage main contactor again; both parties exchange charging statistics messages for data synchronization. After data synchronization is complete, the charging gun's electronic lock is unlocked, a charging record containing complete statistical data is generated, and a charging completion notification is displayed on the charging pile's screen. The charging process is terminated when an abnormal situation is detected.

[0039] The specific implementation of each stage under the standards GB / T27930-2015, GB / T27930-2023, GB / T27930-2011, and T / GAEPA002-2023 is the same as in Example 1.

[0040] By pre-setting the charging pile to either GB / T18487.1 or GB / T18487.5 electric vehicle conductive charging system standard versions in the hardware at the factory, and then combining the communication standard parameter Vs obtained from the CAN bus for differentiated adaptation, and only initializing and running the program branch of the currently adapted standard, it achieves accurate compatibility with multiple versions of the GB / T27930 series national standard and the group standard T / GAEPA002-2023, solving the vehicle-charging pile communication compatibility problem under the coexistence of multiple standards, improving resource utilization and user charging experience. At the same time, the differentiated identification process meets the safety requirement of GB / T18487.5 to prioritize the confirmation of high-voltage communication parameters, while avoiding the occupation of system resources by inactive program branches, optimizing RAM space occupation and program execution efficiency, ensuring the real-time performance and adaptation stability of charging control, which is conducive to the promotion of charging pile products and helps the development of the new energy vehicle industry.

[0041] Example 3, as Figure 2As shown, a computer device includes a processor 101, a memory 102, a display module 103, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps in the method for compatible vehicle-to-pile communication described in Embodiment 1.

[0042] Example 4: A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for compatible vehicle-pile communication described in Example 1.

[0043] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0044] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0045] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0046] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0047] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for compatible vehicle-to-pile communication with different types of vehicles, characterized in that: Includes the following steps: Step S1, Charging Pile Standard Version Configuration Steps: When the charging pile leaves the factory, the standard version of the electric vehicle conductive charging system configured in the hardware is set through the host computer software. If the standard version of the electric vehicle conductive charging system set at the factory is GB / T18487.1, then the communication standard adaptation between the electric vehicle and the charging pile under GB / T18487.1 is performed; if the standard version of the electric vehicle conductive charging system set at the factory is GB / T18487.5, then the communication standard adaptation between the electric vehicle and the charging pile under GB / T18487.5 is performed. Step S2, the communication standard adaptation step between the electric vehicle and the charging pile: according to the standard version of the electric vehicle conductive charging system, obtain the communication standard parameter Vs from the CAN bus, and adapt the communication standard between the electric vehicle and the charging pile according to the communication standard parameter Vs. Step S3, communication between the trolley and the charging station: After determining the communication standard between the trolley and the charging station, communication between the trolley and the charging station is carried out through the communication standard.

2. The method for compatible vehicle-to-pile communication according to claim 1, characterized in that: The standard version for conductive charging systems for electric vehicles is GB / T18487.

1. The specific steps in S2 are as follows: Step S21: The charging pile and the electric vehicle establish a physical connection. The user starts the charging function, and the main controller of the charging pile automatically turns on the low-voltage auxiliary power supply to provide basic power for CAN bus communication. Step S22: The charging pile system communicates the standard version parameter Vs via the CAN bus. Step S23: Adapt the communication standard between the trolley and the charging pile according to the communication standard version parameter Vs.

3. The method for compatible vehicle-to-pile communication according to claim 1, characterized in that: The standard version for conductive charging systems for electric vehicles is GB / T18487.

5. The specific steps in S2 are as follows: Step S21: The charging pile and the electric vehicle establish a physical connection, and the charging pile system communicates the standard version parameter Vs via the CAN bus. Step S22: First, check if the communication standard version parameter Vs is V2.0.

0. If Vs=V2.0.0, the adapted communication standard is GB / T27930-2024, and initialize it. Otherwise, adapt the communication standard between the trolley and the charging pile according to the communication standard version parameter Vs.

4. The method for compatible vehicle-to-pile communication according to claim 2, characterized in that... The specific adaptation for step S23 is as follows: Step S231: If Vs=SC1, then execute the communication standard of group standard T / GAEPA002-2023 and carry out the information interaction process of charging application scenario; Step S232: If Vs=V1.1.0, then execute the communication standards of GB / T27930-2015 and GB / T27930-2023, and carry out the information interaction process for charging application scenarios; Step S233: If Vs=V1.0, then execute the communication standard of GB / T27930-2011 and carry out the information interaction process of the charging application scenario.

5. The method for compatible vehicle-to-pile communication according to claim 3, characterized in that: The specific adaptation for step S22 is as follows: Step S221: If Vs=SC1, then execute the communication standard of group standard T / GAEPA002-2023 and carry out the information interaction process of charging application scenario. Step S222: If Vs=V1.1.0, then execute the communication standards of GB / T27930-2015 and GB / T27930-2023, and carry out the information interaction process for charging application scenarios; Step S223: If Vs=V1.0, then execute the communication standard of GB / T27930-2011 and carry out the information interaction process of the charging application scenario.

6. The method for compatible vehicle-to-pile communication according to claim 4, characterized in that: The standard version for electric vehicle conductive charging system is GB / T18487.

1. The specific operation of step S3 is as follows: the main controller sequentially executes the handshake stage between the electric vehicle and the charging pile, the parameter configuration stage, the charging stage, and the charging end stage through the communication standard adapted in step S22.

7. The method for compatible vehicle-to-pile communication according to claim 5, characterized in that: The standard version for electric vehicle conductive charging system is GB / T18487.

5. The specific operation of step S3 is as follows: If the communication standard version parameter Vs is not V2.0.0, the user starts charging first, and the main controller sequentially executes the handshake stage between the electric vehicle and the charging pile, the parameter configuration stage, the charging stage, and the charging end stage through the communication standard adapted in step S22; otherwise, the user starts charging first, and the main controller sequentially negotiates functions through the communication standard adapted in step S22 to determine the functions to be executed in the charging stage, namely the parameter configuration stage, charging circuit detection, pre-charging and energy transmission, and charging end.

8. The method for compatible vehicle-to-pile communication according to any one of claims 1-7, characterized in that: The communication standard is determined based on the communication standard version parameters. Only the branch of this communication standard is initialized to enable communication between the trolley and the charging station. Other branch programs will not be executed.

9. An electronic device comprising a memory (102), a processor (101), a display module (103), and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method for compatible vehicle-pile communication as described in any one of claims 1 to 8.

10. A readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for compatible vehicle-pile communication as described in any one of claims 1 to 8.

Images