A charging device universal device interchangeability detection method, system and device

By analyzing CAN messages during the simulated vehicle charging process and conducting reverse case tests, the safety hazards of interchangeability testing for general-purpose components in charging equipment were resolved, ensuring the safety, compatibility, and economy of component interchangeability.

CN115656677BActive Publication Date: 2026-03-20STATE GRID ELECTRIC POWER RES INST +5
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-27
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing charging equipment contains a wide variety of general-purpose components of varying quality, which may lead to safety hazards after component interchangeability, and there is a lack of effective interchangeability testing methods.

Method used

The vehicle charging process is simulated using a vehicle control simulator and testing hardware. CAN messages are received and parsed to determine the communication protocol and processing capabilities of general-purpose devices. Reverse case testing is then conducted to ensure that the interchangeability of devices meets preset requirements.

Benefits of technology

It enables interchangeability testing of general-purpose components, ensuring the safety and compatibility of interchangeable equipment, improving module utilization, and reducing the operating costs of charging facilities.

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Abstract

The application discloses a kind of charging equipment general type device interchangeability detection method, system and device, the general type device to be detected is installed in the detection hardware equipment, simulates charging equipment, controls vehicle control simulator to simulate vehicle, and charges with detection hardware equipment, realizes the interchangeability detection of the general type device to be detected by detecting CAN message in charging process and CAN message in reverse case implementation process, so as to ensure that the general type device of interchange can be directly used in charging equipment, and will not lead to charging security risks.
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Description

TECHNICAL FIELD

[0001] The present application relates to a charging device universal component interchangeability detection method, system and device, belonging to the technical field of electric vehicle charging and battery swapping. BACKGROUND

[0002] In recent years, the electric vehicle industry has been developing rapidly, and the charging infrastructure for electric vehicles is being built on a large scale. At present, there are many types of universal components in the charging equipment, and the same component often has multiple manufacturers. Although they are all produced according to the unified standard, the quality is uneven, and there are also some differences in understanding the standard. When a component of the charging equipment is damaged and different components from different manufacturers are used for interchange, it may cause safety hazards in charging due to the quality problems or matching problems of the components. Therefore, there is an urgent need for an interchangeability detection method. SUMMARY

[0003] The present application provides a charging device universal component interchangeability detection method, system and device, which solves the problems disclosed in the background art.

[0004] To solve the above technical problems, the technical solution adopted by the present application is:

[0005] A charging device universal component interchangeability detection method, comprising:

[0006] sending an input instruction to a vehicle control simulator to make the vehicle control simulator simulate vehicle charging together with a detection hardware device; wherein the vehicle control simulator simulates a vehicle, and the detection hardware device is installed with multiple universal components of the charging equipment, and the multiple universal components include a universal component to be detected;

[0007] receiving first CAN messages of each universal component in the detection hardware device during the charging process, and determining whether the first CAN messages meet the requirements of a preset communication protocol;

[0008] converting a preset reverse case into an instruction parameter, sending the instruction parameter to the detection hardware device, and making the detection hardware device implement the reverse case;

[0009] receiving and analyzing second CAN messages of each universal component in the detection hardware device during the implementation of the reverse case, and determining whether the corresponding processing of each universal component is correct according to the second CAN messages;

[0010] If all the first CAN messages meet the requirements of the preset communication protocol, and the corresponding processing of each universal component is correct, then it is determined that the universal component to be detected passes the interchangeability detection.

[0011] A charging device universal component interchangeability detection system, comprising:

[0012] The input instruction issuing module issues an input instruction to the vehicle control simulator, so that the vehicle control simulator simulates vehicle charging together with the detection hardware device; wherein the vehicle control simulator simulates a vehicle, and the detection hardware device is internally provided with a plurality of general-purpose components including the general-purpose component to be detected.

[0013] The receiving detection module receives first CAN messages of the general-purpose components in the detection hardware device during the charging process, and determines whether the first CAN messages meet the requirements of the preset communication protocol.

[0014] The reverse case module converts the preset reverse case into instruction parameters, and sends the instruction parameters to the detection hardware device, so that the detection hardware device implements the reverse case.

[0015] The analysis module receives and analyzes second CAN messages of the general-purpose components in the detection hardware device during the implementation of the reverse case, and determines whether the corresponding processing of the general-purpose components is correct according to the second CAN messages.

[0016] The result module determines that the general-purpose component to be detected passes the interchangeability detection if all the first CAN messages meet the requirements of the preset communication protocol, and the corresponding processing of the general-purpose components is correct.

[0017] A charging device general-purpose component interchangeability detection device includes a detection terminal, a vehicle control simulator, and a detection hardware device connected to the detection terminal, and the vehicle control simulator and the detection hardware device are connected; the detection terminal is used to implement a charging device general-purpose component interchangeability detection method.

[0018] The plurality of general-purpose components include a master control module, a power control module, a switch module, and a charging module, and the general-purpose component to be detected is at least one of the master control module, the power control module, the switch module, or the charging module.

[0019] The detection hardware device is also internally provided with an electrical module controlled by the master control module, and the electrical module is used to control the alternating current on-off of the detection hardware device and an external power supply, and the direct current on-off of the detection hardware device and the vehicle control simulator during the simulation of the vehicle charging process by the vehicle control simulator and the detection hardware device.

[0020] The device also includes a CAN monitoring communication module connected to the CAN port of each general-purpose component of the detection hardware device, and the CAN monitoring communication module is in communication connection with the detection terminal; the CAN monitoring communication module is used to obtain first CAN messages of each general-purpose component in the detection hardware device during the charging process and second CAN messages of each general-purpose component in the detection hardware device during the implementation of the reverse case; and the first CAN messages and the second CAN messages are sent to the detection terminal.

[0021] The CAN monitoring communication module is further provided with a network route for sending the first CAN message and the second CAN message to the detection terminal through the network route.

[0022] The host module is connected to the vehicle control simulator through a charging cable.

[0023] A computer-readable storage medium storing one or more programs, the one or more programs comprising instructions which, when executed by a computing device, cause the computing device to perform a charging device generic device interchangeability detection method.

[0024] A computing device comprising one or more processors, one or more memories, and one or more programs, wherein the one or more programs are stored in the one or more memories and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing a charging device generic device interchangeability detection method.

[0025] The present application has the following beneficial effects: The present application installs a generic device to be detected in a detection hardware device to simulate a charging device, controls a vehicle control simulator to simulate a vehicle, charges the detection hardware device, and detects CAN messages in a charging process and CAN messages in a reverse case implementation process, thereby realizing interchangeability detection of the generic device to be detected, ensuring that the generic device can be directly used in the charging device, and avoiding safety hazards in charging. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A flowchart of the charging device generic device interchangeability detection method;

[0027] Figure 2 A structural diagram of the charging device generic device interchangeability detection device;

[0028] Figure 3 A front view of the detection hardware device structure;

[0029] Figure 4 A back view of the detection hardware device structure;

[0030] Figure 5 An electrical schematic diagram of the detection hardware device;

[0031] Figure 6 A reverse case test function flowchart in the host module. DETAILED DESCRIPTION

[0032] The present application will be further described below in conjunction with the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0033] As Figure 1 shown, a charging device universal device interchangeability detection method includes the following steps:

[0034] Step 1, issue an input instruction to the vehicle control simulator, so that the vehicle control simulator simulates a vehicle together with the detection hardware device; wherein the vehicle control simulator simulates a vehicle, and the detection hardware device is installed with a plurality of universal devices of the charging device, and the plurality of universal devices include a universal device to be detected.

[0035] Step 2, receive the first CAN message of each universal device in the detection hardware device during the charging process, and determine whether the first CAN message meets the requirements of the preset communication protocol.

[0036] Step 3, convert the preset reverse case into an instruction parameter, and send the instruction parameter to the detection hardware device to implement the reverse case.

[0037] The reverse case is a case formulated in combination with the operating conditions of the device, environmental factors and communication interference, to verify the abnormal processing capability of the universal device and ensure the safety and reliability of the charging.

[0038] Step 4, receive and analyze the second CAN message of each universal device in the detection hardware device during the implementation of the reverse case, and determine whether the corresponding processing of each universal device is correct according to the second CAN message.

[0039] The corresponding processing includes automatically filtering when the reverse case-communication address is abnormal, not being disturbed when the reverse case- abnormal interaction process, and being able to alarm when receiving the reverse case- abnormal state; if it is correct, it means that the anti-interference detection item of the detected module passes, if it is not correct, it means that the detected module has certain safety hazards, and the anti-interference detection item does not pass. If the detected module is a switch module in the charging device, the reverse test can detect the anti-interference of the switch module, such as not executing when receiving an abnormal switch control command.

[0040] Step 5, if all the first CAN messages meet the requirements of the preset communication protocol, and the corresponding processing of each universal device is correct, then determine that the universal device to be detected passes the interchangeability detection.

[0041] The above method simulates the charging device by installing the universal device to be detected in the detection hardware device, controls the vehicle control simulator to simulate the vehicle, and charges with the detection hardware device, and realizes the interchangeability detection of the universal device to be detected by detecting the CAN message during the charging process and the CAN message during the implementation of the reverse case, so as to ensure that the interchanged universal device can be directly used in the charging device, and will not cause safety hazards in charging.

[0042] The above method can meet the interchange requirement of the general-purpose devices inside the direct-current charging equipment, the replaced module does not need to match all charging equipment in the market for verifying the reliability, improves the utilization rate of the module, ensures the economy of operation, reduces the investment cost of the charging facility operator, and meets the reliable replacement requirement of the module to the maximum extent.

[0043] Based on the same technical solution, the application further discloses a software system of the above method, and a charging equipment general-purpose device interchangeability detection system, which comprises:

[0044] The input instruction issuing module issues an input instruction to the vehicle control simulator, so that the vehicle control simulator simulates vehicle charging together with the detection hardware device; wherein the vehicle control simulator simulates a vehicle, and the detection hardware device is internally provided with a plurality of general-purpose devices of the charging equipment, and the plurality of general-purpose devices comprise the general-purpose device to be detected.

[0045] The receiving detection module receives the first CAN message of each general-purpose device in the detection hardware device in the charging process, and determines whether the first CAN message meets the requirement of the preset communication protocol.

[0046] The reverse case module converts the preset reverse case into an instruction parameter, and sends the instruction parameter to the detection hardware device, so that the detection hardware device implements the reverse case.

[0047] The analysis module receives and analyzes the second CAN message of each general-purpose device in the detection hardware device in the process of implementing the reverse case, and judges whether the corresponding processing of each general-purpose device is correct according to the second CAN message.

[0048] The result module determines that the general-purpose device to be detected passes the interchangeability detection if all the first CAN messages meet the requirement of the preset communication protocol, and the corresponding processing of each general-purpose device is correct.

[0049] The above method and system are mainly implemented on a detection terminal side, such as a PC, an upper computer and the like, a vehicle control simulator is instructed to simulate a vehicle needing to be charged and to charge by using a detection hardware device, CAN messages of each general-purpose device in the detection hardware device are received during the simulated charging process, it is detected whether the CAN messages meet the requirements of a preset communication protocol, the CAN messages are received during the implementation of the reverse case, it is detected whether the corresponding processing of the general-purpose device is correct, if all the CAN messages meet the requirements of the preset communication protocol and the corresponding processing of each general-purpose device is correct, it is determined that the interchangeability detection of the general-purpose device to be detected is passed, the general-purpose device to be detected can be interchanged with a general-purpose device of the same function in the charging device, that is, the general-purpose device to be detected has good compatibility and can be directly interchanged with a defective device, and no safety hidden danger is caused to the charging process; wherein, the CAN messages include a detailed business interaction process and data, state information of each device, control information of each device and the like.

[0050] Further, based on the same technical scheme, the application also discloses a corresponding device, such as Figure 2 As shown in a charging device general-purpose device interchangeability detection device, comprising a detection terminal, a vehicle control simulator, a detection hardware device, a CAN monitoring communication module and a network route.

[0051] The detection terminal is an upper computer, and the charging device general-purpose device interchangeability detection method is used for charging device general-purpose device interchangeability detection; specifically, detection software is installed inside, and the software includes main control module 1 communication consistency detection software, power control module 2 communication consistency detection software, switch module 3 communication consistency detection software and charging module 4 communication consistency detection software, which are respectively used to detect whether the CAN messages of the main control module 1, the power control module 2, the switch module 3 and the charging module 4 meet the requirements of the communication protocol.

[0052] As shown in Figures 3-5 The detection hardware device is a detection platform, and the internal installed devices include a main control module 1, a power control module 2, a switch module 3, an electrical module 5 and a charging module 4, the main control module 1, the switch module 3 and the charging module 4 are connected with the power control module 2, and the electrical module 5 is controlled by the main control module 1; wherein, the main control module 1, the power control module 2, the switch module 3 and the charging module 4 are general-purpose devices. When the interchangeability detection is performed, the general-purpose device to be detected is used to replace the general-purpose device of the same function in the detection hardware device, and the detection hardware device and the vehicle control simulator jointly simulate the charging behavior.

[0053] The master module 1 is connected with the vehicle control simulator through a charging cable. The charging cable comprises a power line DC+, a power line DC-, a communication line CAN+, a communication line CAN-, a control guide circuit; the power line DC+ and the power line DC- are used for detecting the power transmission of the hardware device to the vehicle control simulator; the communication line CAN+ and the communication line CAN- are used for detecting the data interaction between the hardware device and the vehicle control simulator, and obtaining the charging demand information and the current state information of the vehicle; and the control guide circuit is used for detecting the guide state of the hardware device and the vehicle control simulator.

[0054] The master module 1 communicates with the power control module 2 through CAN, transmits the vehicle demand information, and obtains the working state of the charging module 4 and the switch position information and other data through the power control module 2.

[0055] The master module 1 controls the on-off of the charging circuit and the switch quantity data (switch quantity data for controlling the charging circuit) through the IO electrical module 5, and obtains the voltage, current and other analog quantity data in the charging circuit through AD sampling.

[0056] In the reverse case test in the matching method, the master module 1 and the power control module 2 are mainly tested, so the master module 1 and the power control module 2 both have the reverse case test function.

[0057] Taking the master module 1 as an example, Figure 6 In the master module 1, the instruction parameters are received, and it is judged whether the reverse case needs to be tested according to the preset field in the specified parameters; if not, normal charging is performed until the charging is completed, and if an abnormality occurs in the normal charging process, the charging is ended in advance; if yes, it is further judged whether to simulate an abnormality, if yes, the set abnormality is simulated until the charging is completed, and if not, normal charging is performed until the charging is completed.

[0058] For example: controlling the master module 1 not to send a heartbeat, detecting whether the power control module 2 can recognize it; controlling the master module 1 to send an address abnormal message, detecting whether the power control module 2 discards it; controlling the master module 1 to send data exceeding the protocol definition range, detecting whether the power control module 2 can be compatible and make a safe treatment.

[0059] The power control module 2 communicates with the master module 1 through CAN to obtain the vehicle demand parameters; communicates with the charging module 4 through CAN, and the control module outputs voltage and current according to the requirements; communicates with the switch module 3 through CAN, controls the switches and obtains the switch position information.

[0060] The switch module 3 communicates with the power control module 2 through CAN, controls the corresponding switches according to the requirements, and collects the switch position information.

[0061] The charging module 4 converts alternating current into direct current, and controls the output direct current voltage and direct current according to the demand obtained through communication with the power control module 2.

[0062] The electrical module 5 is used to control the on-off of the detection hardware device and the external power supply in alternating current, the on-off of the detection hardware device and the vehicle control simulator in direct current, and collect the direct current voltage and current when simulating the vehicle charging process together with the detection hardware device.

[0063] The network router is connected with the CAN monitoring communication module through the network port, and is wirelessly networked with the upper computer to realize data transmission.

[0064] The CAN monitoring communication module is connected with the CAN port of each general-purpose device of the detection hardware device, and is used to obtain the first CAN message of each general-purpose device in the detection hardware device in the charging process and the second CAN message of each general-purpose device in the detection hardware device in the implementation of the reverse case; and upload the first CAN message and the second CAN message to the upper computer through the wireless router.

[0065] The vehicle control simulator contains a message simulation and control guide circuit simulation function, and can simulate vehicle messages and action timing, and complete the charging behavior together with the detection hardware device.

[0066] Through the above device, the interchangeability of the general-purpose device to be detected can be realized, and the interchangeability of the standard device inside the charging equipment is provided.

[0067] Based on the same technical scheme, the application further discloses a computer readable storage medium storing one or more programs, the one or more programs including instructions that, when executed by a computing device, cause the computing device to perform the charging equipment general-purpose device interchangeability detection method.

[0068] Based on the same technical scheme, the application further discloses a computing device including one or more processors, one or more memories, and one or more programs, wherein the one or more programs are stored in the one or more memories and configured to be executed by the one or more processors, and the one or more programs include instructions for performing the charging equipment general-purpose device interchangeability detection method.

[0069] Those skilled in the art will appreciate that embodiments of the present application can be readily used as software, hardware, or a combination of software and hardware. In a software embodiment, the methods can be tangibly embodied in a machine-readable storage medium having stored thereon instructions that can be used to program a computer to perform any of the methods. The software implementation can be initialized by loading and executing a set of instructions arranged to perform one of the methods into the computer's memory. Alternatively, hard-wired circuitry can be used in place of, or in combination with, software instructions. Thus, the

[0070] The present application is described in reference to the flowchart and / or block diagrams of the methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart and / or block diagrams, and combinations of blocks in the flowchart 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 processing device, 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, create means for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in one or more of the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0071] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in one or more of the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0072] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in one or more of the flowchart and / or block diagram block or blocks. Figure 1 means for performing the function specified by the flowchart and / or block diagram block or blocks.

[0073] The foregoing is merely illustrative of the principles of this application and various modifications can be made by those skilled in the art without departing from the scope and spirit of the application. The above specification, examples and data provide a complete description of the manufacture and use of the composition of the application. The compositions herein have structural requirements as set forth in the description herein, and such requirements are to be construed as conditions and limitations for each and every claim set forth.

Claims

1. A method for testing the interchangeability of universal components in charging equipment, characterized in that, include: A command is sent to the vehicle control simulator to simulate vehicle charging together with the detection hardware device. The vehicle control simulator simulates a vehicle, and the detection hardware device contains multiple general-purpose devices for charging, including the general-purpose device to be tested. Receive the first CAN message from each general-purpose device in the detection hardware during the charging process, and determine whether the first CAN message conforms to the requirements of the preset communication protocol. The preset reverse cases are converted into instruction parameters, and the instruction parameters are sent to the detection hardware device so that the detection hardware device can implement the reverse cases. Receive and parse the second CAN messages of each general-purpose device in the reverse case implementation process of the detection hardware device, and determine whether the corresponding processing of each general-purpose device is correct based on the second CAN messages; If all first CAN messages meet the requirements of the preset communication protocol, and the corresponding processing of each general-purpose device is correct, then the general-purpose device to be tested is determined to have passed the interchangeability test.

2. A universal component interchangeability testing system for charging equipment, characterized in that, include: The input command issuing module sends an input command to the vehicle control simulator, enabling the vehicle control simulator and the detection hardware device to simulate vehicle charging together; wherein, the vehicle control simulator simulates a vehicle, and the detection hardware device contains multiple general-purpose devices for charging equipment, including the general-purpose device to be tested. The receiving and detection module receives the first CAN message of each general-purpose device in the detection hardware during the charging process and determines whether the first CAN message meets the requirements of the preset communication protocol. The reverse case module converts preset reverse cases into instruction parameters, sends the instruction parameters to the detection hardware device, and enables the detection hardware device to implement the reverse cases. The parsing module receives and parses the second CAN messages of each general-purpose device during the implementation of the reverse case by the detection hardware device, and determines whether the corresponding processing of each general-purpose device is correct based on the second CAN messages. The result module determines that the general-purpose device under test has passed the interchangeability test if all first CAN messages meet the requirements of the preset communication protocol and the corresponding processing of each general-purpose device is correct.

3. A universal interchangeability testing device for charging equipment, characterized in that, It includes a testing terminal and a vehicle control simulator and testing hardware devices respectively connected to the testing terminal, wherein the vehicle control simulator and testing hardware devices are connected; the testing terminal is used to implement the interchangeability testing method for general-purpose components of charging equipment as described in claim 1.

4. The universal component interchangeability testing device for charging equipment according to claim 3, characterized in that, The multiple general-purpose devices include a main control module, a power control module, a switch module, and a charging module. The general-purpose device to be tested is at least one of the main control module, power control module, switch module, or charging module.

5. The universal component interchangeability testing device for charging equipment according to claim 4, characterized in that, The testing hardware device also contains an electrical module controlled by the main control module. The electrical module is used to control the AC connection and DC connection between the testing hardware device and the external power supply, and the DC connection and DC connection between the testing hardware device and the vehicle control simulator during the process of simulating vehicle charging together with the vehicle control simulator.

6. The universal component interchangeability testing device for charging equipment according to claim 4, characterized in that, It also includes a CAN monitoring and communication module, which is connected to the CAN ports of each general-purpose device in the detection hardware device and communicates with the detection terminal. The CAN monitoring and communication module is used to acquire the first CAN message of each general-purpose device in the detection hardware device during the charging process and the second CAN message of each general-purpose device in the detection hardware device during the implementation of the reverse case. The first CAN message and the second CAN message are then sent to the detection terminal.

7. The universal component interchangeability testing device for charging equipment according to claim 6, characterized in that, A network route is also set between the CAN monitoring and communication module and the detection terminal. The CAN monitoring and communication module is used to send the first CAN message and the second CAN message to the detection terminal through the network route.

8. The universal component interchangeability testing device for charging equipment according to claim 4, characterized in that, The main control module is connected to the vehicle control simulator via a charging cable.

9. A computer-readable storage medium for storing one or more programs, characterized in that, The one or more programs include instructions that, when executed by a computing device, cause the computing device to perform the method according to claim 1.

10. A computing device, characterized in that, include: One or more processors, one or more memories, and one or more programs, wherein the one or more programs are stored in the one or more memories and configured to be executed by the one or more processors, the one or more programs including instructions for performing the method according to claim 1.

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