Remote charging control method and system for new energy vehicle and medium

Abstract

The invention discloses a remote charging control method and system for a new energy vehicle and a medium, and belongs to the technical field of vehicle charging control, and the method comprises the steps: receiving a charging control instruction issued by an Internet of Vehicles platform; the charging control instruction is sent to a vehicle control unit through a CAN bus; the vehicle control unit stores the received charging control instruction and sends a response message to a remote control terminal through a CAN bus so as to confirm that the charging control instruction is received; after the remote control terminal receives a response message sent by the vehicle control unit, corresponding execution result feedback is sent to the vehicle networking platform according to response content; and after the vehicle is powered on for the second time, the vehicle control unit controls a battery management system to execute a corresponding charging control function according to the stored charging control instruction. According to the invention, vehicle cargo loss caused by remote vehicle management can be improved, and compatible development of different power batteries, VCUs and protocols can be satisfied.

Description

Technical Field

[0001] The present invention relates to the field of vehicle charging control technology, and more specifically, to a remote charging control method, system and medium for new energy vehicles. Background Art

[0002] With the improvement of living quality and the change of consumption concept, commercial vehicles, as an indispensable means of production in social construction, are also undergoing significant changes in the way they are purchased. In recent years, loan transactions have become one of the important ways to purchase commercial vehicles, and this trend is constantly increasing.

[0003] The core of new energy vehicles lies in their power devices, namely batteries, motors and electronic control systems (referred to as "three electrics"). These systems replace the power devices such as engines and transmissions of traditional fuel vehicles, providing a new power solution for new energy vehicles. Remote charging control devices are an important part of the intelligent management of new energy vehicles. Through remote charging control devices, car owners or operators can remotely monitor and control the charging process of vehicles, reduce vehicle operation risks and effectively promote the promotion and application of new energy vehicles.

[0004] The current mainstream risk prevention and control system uses the Internet of Vehicles platform, remote control terminal and engine to carry out risk prevention and control. Figure 3 However, the existing risk prevention and control systems usually have the following shortcomings: (1) There are many types of engines, and the handshake verification is performed through private CAN, which is different from the handshake verification logic of the remote control terminal. The development difficulty and cost of the OEM are high, and the application scope is too limited; (2) The more types of engine version numbers, the greater the probability of handshake verification failure, resulting in an increased probability of passive vehicle locking, causing customer complaints; (3) The mainstream risk control system, when controlled at a high level, will cause the vehicle to be unable to start, causing significant losses to customers. Summary of the invention

[0005] An object of the present invention is to provide a remote charging control method, system and medium for new energy vehicles to solve the aforementioned problems of a wide variety of engines, different handshake verification logic from the remote control terminal, high difficulty and cost in development by the OEM, too limited application scope, increased probability of passive vehicle locking, and inability to start the vehicle at a high level of control.

[0006] According to a first aspect of the present invention, a remote charging control method for a new energy vehicle is provided, comprising the following steps:

[0007] Receive charging control instructions issued by the Internet of Vehicles platform;

[0008] Send the charging control instruction to the vehicle controller via the CAN bus;

[0009] The vehicle controller stores the received charging control instruction and sends a response message to the remote control terminal via the CAN bus to confirm that the charging control instruction has been received;

[0010] After receiving the response message sent by the vehicle controller, the remote control terminal sends corresponding execution result feedback to the Internet of Vehicles platform according to the response content.

[0011] Optionally, the remote charging control method for new energy vehicles further includes the following steps:

[0012] After the vehicle is powered on for the second time, the vehicle controller controls the battery management system to perform corresponding charging control functions according to the stored charging control instructions.

[0013] Optionally, the vehicle controller sets the charging mode to a restricted charging mode, and limits the charging power or charging time according to preset rules.

[0014] Optionally, after the CAN bus sends the charging control instruction, the remote control terminal maintains the current control state until receiving a release instruction from the Internet of Vehicles platform.

[0015] Optionally, after the remote control terminal receives the response message sent by the vehicle controller, in the step of sending corresponding execution result feedback to the Internet of Vehicles platform according to the response content, if the vehicle controller successfully confirms the charging control instruction and is ready to execute it, the remote control terminal will reply with a message indicating that the charging control is successful; if the vehicle controller fails to confirm the charging control instruction, the remote control terminal will reply with a message indicating that the charging control has failed.

[0016] Optionally, the remote charging control method for new energy vehicles further includes the following steps:

[0017] Receive the combined signal of the manual triggering emergency release of charging control and the signal action duration information;

[0018] When the combination signal and the signal action duration information meet the preset conditions, the vehicle controller records the number of times the emergency release of charging control is used and counts it as 1;

[0019] Send a message indicating the number of times the emergency release charging control function is used via the CAN bus, and provide real-time feedback on the number of times the emergency release charging control function is currently used;

[0020] When the number of times the emergency release charging control function is used is less than the preset number of times, the emergency release charging control is entered to release the vehicle from the restricted charging mode.

[0021] Optionally, in the step of determining whether the combination signal and the signal action duration information meet a preset condition, the preset condition is set as: "Start", "Brake" and "Spd0 (speed is zero state)" are pressed or activated at the same time and maintained for 10 seconds.

[0022] Optionally, the upper limit of the preset number of times is set to 10 times.

[0023] According to a second aspect of the present invention, a remote charging control system for a new energy vehicle is provided, comprising:

[0024] Internet of Vehicles platform, used to issue charging control instructions;

[0025] A remote control terminal, used to receive the charging control command issued by the Internet of Vehicles platform, and send the charging control command to the vehicle controller via the CAN bus;

[0026] The vehicle controller is used to store the received charging control instruction and send a response message to the remote control terminal through the CAN bus to confirm that the charging control instruction has been received. After receiving the response message sent by the vehicle controller, the remote control terminal sends corresponding execution result feedback to the Internet of Vehicles platform according to the response content;

[0027] The battery management system is used to execute corresponding charging control functions according to the charging control instructions stored in the vehicle controller after the vehicle is powered on for the second time.

[0028] According to a third aspect of the present invention, there is provided a computer-readable storage medium for storing a program, wherein the program, when executed, implements the steps of the above-mentioned remote charging control method for new energy vehicles.

[0029] The remote charging control method, system and medium of the new energy vehicle disclosed in the present invention have the following technical effects:

[0030] The vehicle controller stores the received charging control instruction and sends a response message to the remote control terminal through the CAN bus to confirm that the charging control instruction has been received; after receiving the response message sent by the vehicle controller, the remote control terminal sends the corresponding execution result feedback to the Internet of Vehicles platform according to the response content. After the vehicle is powered on for the second time, the vehicle controller controls the battery management system to perform the corresponding charging control function according to the stored charging control instruction. The present invention can grasp the execution of the charging control instruction in real time through the Internet of Vehicles platform, provide a basis for subsequent unified scheduling and management, optimize parameters such as charging time and charging power, promote efficient use of energy and energy conservation and emission reduction, and the Internet of Vehicles platform can be compatible with different power battery models. Through the real-time feedback mechanism of the remote control terminal and the Internet of Vehicles platform, users can timely understand the execution of the charging control instruction, improve the user experience, and do not affect the normal start-up and driving of the vehicle, which is safer.

[0031] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 A schematic flow chart of a remote charging control method for a new energy vehicle provided by an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of a flow chart of emergency release of charging control in a remote charging control method for a new energy vehicle provided by an embodiment of the present invention;

[0035] Figure 3 The figure is a logical diagram of a vehicle risk prevention and control system in the prior art. DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] In the current mainstream risk prevention and control systems, the handshake verification logic of the engine and the remote control terminal is different, which makes it difficult and costly for the OEM to develop, and the scope of application is too limited. And the more types of engine version numbers there are, the greater the probability of handshake verification failure, resulting in an increased probability of passive vehicle locking. At high levels of control, the vehicle will be unable to start, causing significant losses to customers. Through the information interaction between the Internet of Vehicles platform and the vehicle, this application can dynamically adjust the charging strategy according to actual conditions and realize intelligent management of the charging process. Through the real-time feedback mechanism of the remote control terminal and the Internet of Vehicles platform, users can promptly understand the execution of charging control instructions, which improves the user experience. Users can achieve remote charging control without personally operating the vehicle, which improves the convenience and flexibility of charging.

[0041] The present invention proposes an embodiment of a remote charging control method for a new energy vehicle. Specifically, Figure 1 As shown, the following steps are included:

[0042] The charging control instructions issued by the Transportation Service Platform (TSP) are received through the remote control terminal. It should be noted that the Transportation Service Platform generates charging control instructions in real time according to user needs, vehicle status and grid load conditions, and quickly sends them to the remote control terminal (TBOX) through the network. After the TSP platform starts, it determines whether the TBOX is online. If so, it sends the charging control instructions, otherwise it waits for the TBOX to go online. In addition, the charging control instructions can also be sent by the mobile phone APP.

[0043] TBOX sends the charging control command to the vehicle controller via the CAN bus. It should be noted that the CAN bus ensures the reliability of the transmission of the charging control command within the vehicle with its high anti-interference and error detection capabilities. After receiving the charging control command issued by the TSP platform, TBOX determines whether the vehicle is powered on. If so, it sends the charging control command to the vehicle controller, otherwise it waits for the next time the vehicle is powered on.

[0044] The vehicle control unit (VCU) stores the received charging control command and sends a response message to the remote control terminal via the CAN bus to confirm that the charging control command has been received; it should be noted that after receiving the charging control command, the VCU will first store it to ensure that the command will not be lost even if the vehicle is temporarily powered off. At the same time, the VCU immediately sends a response message to the remote control terminal via the CAN bus to confirm that the command has been received, thereby enhancing the reliability of the system and the user experience.

[0045] After receiving the response message sent by the vehicle controller, the remote control terminal sends the corresponding execution result feedback to the Internet of Vehicles platform according to the response content; it should be noted that after receiving the response message from the VCU, the remote control terminal will parse its content and feedback the execution result (such as successful command reception, command reception failure, etc.) to the Internet of Vehicles platform. In this way, the Internet of Vehicles platform can grasp the execution status of the charging control command in real time, providing a basis for subsequent scheduling and management.

[0046] In an embodiment of the present invention, the remote charging control method for a new energy vehicle further includes the following steps:

[0047] After the vehicle is powered on for the second time, the vehicle controller controls the battery management system to perform the corresponding charging control function according to the stored charging control instructions. It should be noted that after the vehicle is powered on for the second time, the vehicle controller will automatically check and execute the stored charging control instructions without manual operation by the user. According to the content of the instructions, the battery management system (BMS) can intelligently adjust the charging power, charging time and other parameters to achieve efficient use of energy.

[0048] The embodiment of the present invention realizes remote, intelligent and automated management of the charging process of new energy vehicles through the coordinated work of the Internet of Vehicles platform, vehicle controller, remote control terminal and battery management system. It not only improves the convenience and flexibility of charging, but also ensures the accurate execution of charging instructions and timely handling of abnormal situations through a closed-loop control system. At the same time, the method also fully considers the storage and execution of instructions in special circumstances such as vehicle power failure or restart, ensuring the continuity and stability of the charging process.

[0049] In an embodiment of the present invention, the vehicle controller sets the charging mode to a restricted charging mode, and limits the charging power or charging time according to preset rules. Among them, the preset rules are charging conditions set in the VCU in advance, which are used to guide the specific implementation of restricted charging, including but not limited to maximum charging power limit, charging time window and battery temperature management. In the restricted charging mode, the VCU adjusts the charging parameters according to the preset rules: if the rule is to limit the charging power, the VCU sends an instruction to the battery management system, requiring it to reduce the charging power to below the preset value; if the rule is to limit the charging time, the VCU sends an instruction to the BMS to stop charging after the set charging time is reached. By limiting the charging power and temperature management, safety hazards such as battery overheating and overcharging can be effectively prevented, and the battery can be protected from damage.

[0050] In the embodiment of the present invention, after the CAN bus sends the charging control instruction, the remote control terminal maintains the current control state until receiving a release instruction from the vehicle networking platform. This ensures the validity and continuity of the charging control instruction and prevents control confusion caused by unexpected interruptions. At the same time, the TSP platform or user is allowed to adjust the charging strategy at any time as needed, which increases the flexibility and response speed of the system.

[0051] In an embodiment of the present invention, after the remote control terminal receives the response message sent by the vehicle controller, in the step of sending the corresponding execution result feedback to the vehicle networking platform according to the response content, if the vehicle controller successfully confirms the charging control instruction and is ready to execute, the remote control terminal will reply with a message indicating that the charging control is successful; if the vehicle controller fails to confirm the charging control instruction, the remote control terminal will reply with a message indicating that the charging control fails. Among them, if the VCU finds any problems in the process of receiving, parsing or verifying the charging control instruction (such as incorrect instruction format, unreasonable parameters, vehicle status does not allow charging, etc.), it will not be able to confirm the instruction.

[0052] This step is an important part of information exchange between the external system and the vehicle's internal system, ensuring that the Internet of Vehicles platform or mobile phone APP can understand the execution status of the instructions in a timely manner and take corresponding measures.

[0053] In an embodiment of the present invention, the remote charging control method for new energy vehicles also includes the following steps of emergency release of charging control charging, specifically as follows: Figure 2 As shown,

[0054] Receive the combined signal of the manual triggering of emergency release of charging control and the signal action duration information; this combined signal is designed to prevent misoperation and ensure that it is triggered only when emergency release is really needed.

[0055] When the combination signal and the signal action duration information meet the preset conditions, the vehicle controller records the number of times the emergency release of charging control is used and counts it as 1; the vehicle controller can track the frequency of this emergency operation. Triggering the emergency release of charging control function through preset conditions can effectively prevent false triggering or malicious operations and ensure the stability and reliability of the system.

[0056] A message indicating the number of times the emergency release charging control function is used is sent via the CAN bus, and the number of times the current emergency release charging control function is used is fed back in real time; so that maintenance personnel or vehicle owners can easily understand the current usage of the emergency release charging control function.

[0057] When the emergency release of charging control function is used less than the preset number of times, the emergency release of charging control will be entered to release the restricted charging mode of the vehicle; it should be noted that when the emergency release of charging control operation is triggered and the emergency unlocking is used less than the preset number of times, the vehicle will enter the emergency release of charging control state, release the original charging restriction mode, and the vehicle will be able to continue charging or resume normal charging function. The emergency release of charging control function provides a means for new energy vehicles to quickly respond to emergencies, which helps to quickly interrupt charging when encountering danger during the charging process to protect the safety of vehicles, personnel and infrastructure. However, the original active charging control or passive charging control state of the vehicle cannot be changed, that is, the active charging control or passive charging control mode will still be entered when powered on next time.

[0058] In an embodiment of the present invention, in the step of determining whether the combination signal and the signal action duration information meet the preset conditions, the preset conditions are set as: "Start", "Brake" and "Spd0 (speed is zero state)" are pressed or activated at the same time and maintained for 10 seconds.

[0059] In the embodiment of the present invention, the upper limit of the preset number of times is set to 10. The upper limit of the number of uses is set to 10 times, which can prevent the abuse of this function, ensure that it is used only when it is really needed, and avoid potential security risks.

[0060] The present invention also provides a remote charging control system for new energy vehicles, comprising:

[0061] Internet of Vehicles platform, used to issue charging control instructions;

[0062] A remote control terminal, used to receive the charging control command issued by the Internet of Vehicles platform, and send the charging control command to the vehicle controller via the CAN bus;

[0063] The vehicle controller is used to store the received charging control instruction and send a response message to the remote control terminal through the CAN bus to confirm that the charging control instruction has been received. After receiving the response message sent by the vehicle controller, the remote control terminal sends corresponding execution result feedback to the Internet of Vehicles platform according to the response content;

[0064] The battery management system is used to execute corresponding charging control functions according to the charging control instructions stored in the vehicle controller after the vehicle is powered on for the second time.

[0065] The remote charging control method and system of new energy vehicles of the present invention can be applied to new energy commercial vehicle models by developing a remote charging restriction function. Aiming at the needs of the new energy vehicle rental market, a safe and reliable remote vehicle management technology has been developed. By limiting charging control, the vehicle driving safety is not affected, and the loss of vehicle cargo caused by remote vehicle management is effectively improved; it supports platform design, can meet the compatible development of different power batteries, VCUs and protocols, and has low cost and short cycle.

[0066] The present invention also provides a computer-readable storage medium for storing a program, which, when executed, implements the steps of the remote charging control method for new energy vehicles. The computer-readable storage medium can be implemented in the form of a program product, including a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps of various exemplary embodiments of the present disclosure described in the above "Exemplary Method" section of this specification, for example, Figure 1 and Figure 2 The program product may be in the form of a portable compact disk read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0067] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A remote charging control method for new energy vehicles, characterized in that: The following steps are involved: Receive charging control instructions issued by the Internet of Vehicles platform; Send the charging control instruction to the vehicle controller via the CAN bus; The vehicle controller stores the received charging control instruction and sends a response message to the remote control terminal via the CAN bus to confirm that the charging control instruction has been received; After receiving the response message sent by the vehicle controller, the remote control terminal sends corresponding execution result feedback to the Internet of Vehicles platform according to the response content.

2. The remote charging control method for new energy vehicles according to claim 1, characterized in that: The following steps are also included: After the vehicle is powered on for the second time, the vehicle controller controls the battery management system to perform corresponding charging control functions according to the stored charging control instructions.

3. The remote charging control method for new energy vehicles according to claim 2, characterized in that: The vehicle controller sets the charging mode to a restricted charging mode, and limits the charging power or charging time according to a preset rule.

4. The remote charging control method for new energy vehicles according to claim 1, characterized in that: After the CAN bus sends the charging control instruction, the remote control terminal maintains the current control state until receiving a release instruction from the vehicle networking platform.

5. The remote charging control method for new energy vehicles according to claim 1, characterized in that: After the remote control terminal receives the response message sent by the vehicle controller, in the step of sending corresponding execution result feedback to the Internet of Vehicles platform according to the response content, if the vehicle controller successfully confirms the charging control instruction and is ready to execute it, the remote control terminal will reply with a message indicating that the charging control is successful; if the vehicle controller fails to confirm the charging control instruction, the remote control terminal will reply with a message indicating that the charging control has failed.

6. The remote charging control method for new energy vehicles according to claim 3, characterized in that: The following steps are also included: Receive the combined signal of the manual triggering emergency release of charging control and the signal action duration information; When the combination signal and the signal action duration information meet the preset conditions, the vehicle controller records the number of times the emergency release of charging control is used and counts it as 1; Send a message indicating the number of times the emergency release charging control function is used via the CAN bus, and provide real-time feedback on the number of times the emergency release charging control function is currently used; When the number of times the emergency release charging control function is used is less than the preset number of times, the emergency release charging control is entered to release the vehicle from the restricted charging mode.

7. The remote charging control method for new energy vehicles according to claim 6, characterized in that: In the step of determining whether the combination signal and the signal action duration information meet the preset conditions, the preset conditions are set as: "Start", "Brake" and "Spd0 (speed zero state)" are pressed or activated at the same time and maintained for 10 seconds.

8. The remote charging control method for new energy vehicles according to claim 6, characterized in that: The upper limit of the preset number of times is set to 10 times.

9. A remote charging control system for new energy vehicles, characterized in that: include: Internet of Vehicles platform, used to issue charging control instructions; A remote control terminal, used to receive the charging control command issued by the Internet of Vehicles platform, and send the charging control command to the vehicle controller via the CAN bus; The vehicle controller is used to store the received charging control instruction and send a response message to the remote control terminal through the CAN bus to confirm that the charging control instruction has been received. After receiving the response message sent by the vehicle controller, the remote control terminal sends corresponding execution result feedback to the Internet of Vehicles platform according to the response content; The battery management system is used to execute corresponding charging control functions according to the charging control instructions stored in the vehicle controller after the vehicle is powered on for the second time.

10. A computer-readable storage medium for storing a program, characterized in that: When the program is executed, the steps of the remote charging control method for a new energy vehicle according to any one of claims 1 to 8 are implemented.

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