Charging and discharging simulation test system for electric vehicle, test method thereof and computer program product

Abstract

The invention discloses a charging and discharging simulation test system for an electric vehicle, and the system comprises a man-machine interaction unit (10) which is configured to be used for selecting a charging standard and a charging function module (20), the charging function module (20) at least comprises a parameter configuration module (21), an authentication module (22), a charging reservation module (23), an output detection module (24), a power supply module (25), a pre-charging and energy transmission module (26) and a charging ending module (27); and a test unit (30) configured for testing based on the selected charging criteria and the charging function module (20). The invention further discloses a charging and discharging simulation test method for the electric vehicle and a computer program product. According to some exemplary embodiments of the invention, the application range is wide, the function coverage is comprehensive, and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to the field of electric vehicles, in particular to the field of electric vehicle charging. Background Art

[0002] With the rapid development of the electric vehicle industry, the need for safety, compatibility, and performance testing of charging infrastructure is becoming increasingly urgent. However, the wide variety of charging station models on the market, each complying with different standards, makes it difficult to centrally test the compatibility of electric vehicles with multiple charging stations. This creates significant challenges for automakers in conducting safety, compatibility, and performance testing of charging between vehicles and charging stations.

[0003] It is desired to provide a charging and discharging simulation test system for electric vehicles that has a wide range of applications, comprehensive functional coverage, and is easy to operate. Summary of the Invention

[0004] In order to overcome one of the above-mentioned shortcomings and / or other possible shortcomings in the prior art not mentioned herein, the object of the present invention is to provide a charging and discharging simulation test system for electric vehicles, a charging simulation test method for electric vehicles, and a computer program product.

[0005] According to one aspect of the present invention, a charge and discharge simulation test system for electric vehicles is provided, which includes: a human-computer interaction unit, which is configured to select a charging standard and a charging function module, wherein the charging function module includes at least a parameter configuration module, an authentication module, a charging reservation module, an output detection module, a power supply module, a pre-charge and energy transmission module and a charging termination module; and a testing unit, which is configured to perform testing based on the selected charging standard and charging function module.

[0006] According to an optional embodiment of the present invention, the charging standard includes multiple charging standards, and at least includes a 2015+ standard version that is compatible with the national standard 2011 version and the national standard 2015 version.

[0007] According to an optional embodiment of the present invention, the parameter configuration module includes a charging submodule and a discharging submodule; the authentication module includes a code scanning authentication submodule, an eVin authentication submodule and a cloud authentication submodule; the charging reservation module includes a start time submodule and a charging mode submodule; the pre-charging and energy transfer submodule includes a charging submodule and a discharging submodule.

[0008] According to an optional embodiment of the present invention, the human-computer interaction module includes a panel control interface, and the panel control interface includes a charging standard option group, a charging function module option group and a sub-function module option group thereof.

[0009] According to an optional embodiment of the present invention, the panel control interface further includes a status display area, and the status display area is configured to display the current test phase and test status.

[0010] According to an optional embodiment of the present invention, the charge and discharge simulation test system further includes a test case generation module, which is configured to generate a test case based on user customization for direct calling; the test case includes selection of the charging standard and the charging function module.

[0011] According to a second aspect of the present invention, a charge and discharge simulation test method for an electric vehicle is provided, and the test method includes at least the following steps: an interactive step S1, which selects a charging standard and a charging function module with the aid of a human-computer interaction unit, wherein the charging function module includes at least a parameter configuration module, an authentication module, a charging reservation module, an output detection module, a power supply module, a pre-charge and energy transmission module, and a charging termination module; and a test step S2, which performs a test based on the selected charging standard and charging function module with the aid of a test unit.

[0012] According to an optional embodiment of the present invention, the testing step S2 includes a version testing step and a function testing step, and the version testing step is performed first and then the function testing step.

[0013] According to an optional embodiment of the present invention, in the functional testing step, tests based on corresponding charging functional modules are performed in sequence according to the arrangement order of the charging functional modules on the panel control interface.

[0014] According to a third aspect of the present invention, a computer program product is provided, such as a machine-readable storage medium, which includes or stores computer program instructions. When the computer program is run on a computer, it is suitable for performing a charge and discharge simulation test method.

[0015] According to certain exemplary embodiments of the present invention, the application scope is wide, the functional coverage is comprehensive, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0017] Figure 1 A schematic block diagram of a charge and discharge simulation test system for electric vehicles according to the present invention is shown.

[0018] Figure 2 The application scenario of the charge and discharge simulation test system for electric vehicles according to the present invention is shown.

[0019] Figure 3A flow chart of a charging simulation test method for an electric vehicle according to the present invention is shown. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of protection of the present invention.

[0021] Figure 1 A schematic block diagram of a charge and discharge simulation test system for electric vehicles according to the present invention is shown. Figure 2 The application scenario of the charge and discharge simulation test system for electric vehicles according to the present invention is shown. The charge and discharge simulation test system for electric vehicles according to the present invention at least includes:

[0022] A human-computer interaction unit 10 is configured to select a charging standard and a charging function module 20, wherein the charging function module 20 includes at least a parameter configuration module 21, an authentication module 22, a charging reservation module 23, an output detection module 24, a power supply module 25, a pre-charging and energy transmission module 26, and a charging termination module 27;

[0023] The testing unit 30 is configured to perform a test based on the selected charging standard and the charging function module 20 .

[0024] Charging standards refer to the charging standards between electric vehicles and charging stations. Currently, mainstream charging standards include the 2011 and 2015 versions of the national standards, as well as the 2015+ standard version that is compatible with the 2011 and 2015 versions of the national standards. The 2015+ standard version includes the GB / T 20234.1-2023 and GB / T 20234.3-2023 series of standards released in 2023. The charging standard in the present invention can be selected from the above-mentioned multiple charging standard versions, and can also be selected from other standard versions.

[0025] The charging function module 20 can simulate and obtain corresponding charging or discharging parameters or states for each charging link or stage of the entire charging and discharging process between the electric vehicle and the charging pile. The charging function module 20 at least includes a parameter configuration module 21, an authentication module 22, a charging reservation module 23, an output detection module 24, a power supply module 25, a pre-charge and energy transmission module 26, and a charging end module 27. Among them, the parameter configuration module 21 also includes a charging submodule and a discharging submodule, the authentication module 22 also includes a code scanning authentication submodule, an eVin authentication submodule, and a cloud authentication submodule, the charging reservation module 23 also includes a start time submodule and a charging mode submodule, and the pre-charge and energy transmission submodule also includes a charging submodule and a discharging submodule.

[0026] Specifically, parameter configuration can be used to configure and adjust various parameters in the entire charging or discharging process, including charging or discharging current, voltage, power, charging or discharging time, etc. For example, according to the battery type and capacity of different electric vehicles, set the appropriate charging or discharging current and voltage to ensure the safety and efficiency of the charging and discharging process. Here, the parameter configuration module 21 can simulate the various parameters to be configured, and the charge and discharge simulation test system can perform simulation tests based on the relevant configuration of the parameter configuration module 21. At this time, the simulation test mainly includes matching and stability tests based on the voltage, current and other parameters configured in the parameter configuration module 21. The parameter configuration module 21 can also include a charging submodule and a discharging submodule, wherein the charging submodule and the discharging submodule correspond to the charging mode of the parameter configuration module 21 and the discharging mode of the parameter configuration module 21, respectively. When the parameter configuration module 21 and its discharge submodule are selected, that is, when the parameter configuration module 21 is set to the discharge mode, the charge and discharge simulation test system can simulate the discharge of the electric vehicle to the charging pile, and perform matching and stability tests on the discharge function under the corresponding parameter configuration. Accordingly, the voltage, current and other parameters configured in the parameter configuration module 21 are the discharge voltage, current and other parameters of the electric vehicle to the charging pile.

[0027] Authentication can be an identity authentication of electric vehicles and charging piles. Before charging begins, the authentication submodule will verify the identity information of the vehicle, such as the vehicle identification number (VIN), the authentication information of the battery management system (BMS), etc., to ensure the safety and legality of charging. Here, the authentication module 22 can simulate the identity of the charging pile, and the charge and discharge simulation test system can perform simulation tests based on the authentication module 22. At this time, the simulation test includes a safety and legality test for the identity of the charging pile in the authentication module 22. The authentication module 22 includes a code scanning authentication submodule, an eVin authentication submodule and a cloud authentication submodule, which correspond to the code scanning authentication mode, eVin authentication and cloud authentication mode of the authentication module 22 respectively. The authentication module 22 and its corresponding submodules are selected, that is, the authentication module 22 is set to the corresponding authentication mode.

[0028] Charging reservations allow users to make advance reservations for charging services. Users can set the charging time, select the charging mode (such as fast charging or slow charging), and set the charging start time through a mobile phone application or the charging station's user interface. This improves the efficiency of charging equipment, optimizes charging schedules, and avoids long waits for users. The charging reservation module 23 can simulate the charging mode and charging start time for the charging reservation, and the charge-discharge simulation test system can perform simulation tests on the charging reservation module 23. The simulation test primarily includes compatibility testing of the charging mode and charging start time in the charging reservation module 23.

[0029] Output detection can be real-time monitoring of charging output parameters such as voltage, current, and power. Through built-in sensors and monitoring circuits, the output detection module 24 can promptly detect abnormal conditions during the charging process, such as overvoltage, overcurrent, and undervoltage, thereby ensuring the safety and stability of the charging process and preventing battery damage or safety accidents caused by voltage or current abnormalities. Here, the output detection module 24 can simulate and obtain real-time monitoring of charging output parameters such as voltage, current, and power, and the charge and discharge simulation test system can perform simulation tests based on the output detection module 24. At this time, the simulation test mainly includes matching and stability tests based on the charging output voltage, current, power and other parameters in the output detection module 24. It can also perform compatibility tests on the safety control functions of the electric vehicle when abnormal conditions such as overvoltage, overcurrent, and undervoltage occur.

[0030] Power supply can convert AC power from the grid into DC power suitable for charging electric vehicle batteries. A constant voltage mode can be used to provide a stable charging power source for electric vehicles. Here, the power supply module 25 can simulate a DC power supply, and the charge-discharge simulation test system can perform simulation tests based on the power supply module 25. The simulation tests primarily include compatibility and stability tests for the constant voltage power supply mode in the power supply module 25.

[0031] Pre-charging and energy transmission can refer to pre-charging the battery of an electric vehicle before the formal charging begins. The purpose of pre-charging is to gradually increase the voltage of the battery to reach a safe charging state, avoid the impact on the battery caused by excessive voltage difference, thereby extending the battery life and improving the safety and reliability of charging. Here, the pre-charging and energy transmission module 26 can simulate the pre-charging voltage rise curve, and the charge and discharge simulation test system can perform simulation tests based on the pre-charging and energy transmission module 26. At this time, the simulation test can include matching and stability tests based on the voltage rise curve in the pre-charging and energy transmission module 26. The pre-charging and energy transmission module 26 can include a charging submodule and a discharging submodule, wherein the charging submodule and the discharging submodule correspond to the charging mode of the pre-charging and energy transmission module 26 and the discharging mode of the pre-charging and energy transmission module 26 respectively; selecting the charging submodule or the discharging submodule of the pre-charging and energy transmission module 26 means that the pre-charging and energy transmission module 26 is set to the charging mode and the discharging mode.

[0032] The end of charging can automatically cut off the charging power supply after charging is completed. It will determine whether charging is complete based on the charging parameters configured by the parameter configuration module 21 and the actual state of the battery. When the battery is fully charged or reaches the set charging time, the end of charging submodule will issue a stop charging instruction, thereby preventing battery overcharging, protecting battery safety, and reminding the user that charging is complete. Here, the end of charging module 27 can simulate the charging completion status and stop charging instruction, and the charge and discharge simulation test system can perform simulation testing based on the end of charging module 27. In this case, the simulation test mainly includes compatibility testing based on the charging completion status and stop charging instruction in the end of charging module 27.

[0033] See Figure 2 The human-computer interaction module of the present invention includes a panel control interface, which includes a charging standard option group. Optionally, the options in the charging standard option group should be the national standard 2011 version, the national standard 2015 version and the 2015+ standard version. The user selects the charging standard on the panel control interface. Figure 2 This indicates that the user has selected the 2015+ standard version. The charge-discharge simulation test system will test the electric vehicle's compatibility with the 2015+ standard version. Specifically, the system executes the version test step within the test procedure. This process is called the version test phase. During the version test step, the system sends the corresponding standard version to the electric vehicle to test the charging system's response and obtain a compatibility test result, which can be classified as either successful or unsuccessful.

[0034] The panel control interface of the present invention also includes a charging function module option group and its sub-function module option groups. The options representing the charging function modules 20 in the charging function module option group are arranged on the panel control interface according to the standard order of charging or discharging. For example, if the parameters must be configured and the legitimacy of the electric vehicle must be verified first, the charging function module 20 and the verification module 22 are arranged at the top, while the termination module is arranged at the bottom. Figure 2 It means that the user has selected the charging submodule of the parameter configuration module 21, the eVin authentication submodule of the authentication module 22, the output detection module 24, the power supply module 25, the charging submodule of the pre-charge and energy transmission module 26, and the end module, while the charging reservation module 23 is not selected. After the user completes the selection of the charging function module 20, the charge and discharge simulation test system will perform compatibility, safety and legality tests on the above-mentioned selected charging function module 20 and its corresponding sub-function modules, that is, the charge and discharge simulation test system executes the functional test steps in the test steps. In the functional test step, the charge and discharge simulation test system will perform simulation tests based on each charging function module 20 in sequence according to the arrangement order of the charging function modules 20 on the panel control interface. In addition, only after the version test phase of the above-mentioned charging standard is completed and the test is successful, will the functional test step be started, that is, the functional test phase is entered. The execution process of the functional test step is called the functional test phase. The functional testing phase includes multiple sub-test phases, each of which is based on the corresponding testing process of each charging functional module 20. These phases can be categorized as parameter configuration testing, authentication testing, charging reservation testing, output detection testing, power supply testing, pre-charge and energy transfer testing, and charge completion testing. Similarly, the charge-discharge simulation test system tests the response of the electric vehicle's charging system based on each charging functional module 20, obtaining compatibility, safety, or legality test results, which can be classified as successful or unsuccessful.

[0035] Optionally, the panel control interface of the present invention also includes a status display area configured to display the current test phase and test status. The status display area can be integrated with the charging standard selection group, the charging function module selection group, and its sub-function module selection groups on the same panel control interface, making the entire charge-discharge simulation test system more compact. Alternatively, an additional electronic display screen can be used for display, and an additional audio device can be provided to play the current test phase and test status to the user, further facilitating user observation.

[0036] Optionally, the charge-discharge simulation test system further includes a test case generation module configured to generate test cases based on user customization for direct invocation. The test cases include the selection of a charging standard and the charging function module 20. Specifically, the test case generation module can generate test cases based on user customization and pre-store the test cases so that the corresponding test cases can be directly retrieved during subsequent charging simulation tests. The test cases include the selection and setting of a charging standard and the charging function module 20.

[0037] Accordingly, the panel control interface of the human-computer interaction unit 10 may also include a test case option group, which allows test cases to be selected and retrieved through the panel control interface. After selecting the test case option group, the selection and settings of the charging standard and charging function module 20 included in the corresponding test case are simultaneously adopted. By retrieving the corresponding test case, the present invention can simplify the human-computer interaction steps and make the testing process more convenient.

[0038] Optionally, the panel control interface may also include an area to be upgraded, so that the charge and discharge simulation test system can be conveniently upgraded according to the release of a new standard version, especially when a new charging function module 20 needs to be added, thereby helping to expand the applicability of the charge and discharge simulation test system of the present invention.

[0039] Figure 3 The flowchart of the charging simulation test method for electric vehicles according to the present invention is shown. The charging simulation test method for electric vehicles according to the present invention at least includes an interaction step S1 and a test step S2.

[0040] In the interactive step S1, the charging standard and the charging function module 20 are selected with the help of the human-computer interaction unit 10, wherein the charging function module 20 at least includes a parameter configuration module 21, an authentication module 22, a charging reservation module 23, an output detection module 24, a power supply module 25, a pre-charging and energy transmission module 26, and a charging end module 27, and the testing step includes a version test and a function test, and the version test is performed first and then the function test.

[0041] In the test step S2, the compatibility test is performed based on the selected charging standard and the charging function module 20 with the aid of the test unit 30. Optionally, a simulation test is performed based on each charging function module 20 in the order in which the charging function modules 20 are arranged on the panel control interface.

[0042] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not limiting, unless otherwise expressly stated. In specific implementations, multiple features can be combined with each other where technically feasible, depending on actual needs. Various substitutions, changes, and modifications are also contemplated without departing from the spirit and scope of the present invention.

Claims

1. A charge and discharge simulation test system for an electric vehicle, the charge and discharge simulation test system comprising: A human-computer interaction unit (10) configured to select a charging standard and a charging function module (20), wherein the charging function module (20) includes at least a parameter configuration module (21), an authentication module (22), a charging reservation module (23), an output detection module (24), a power supply module (25), a pre-charging and energy transmission module (26), and a charging end module (27); and A test unit (30) is configured to perform a test based on a selected charging standard and a charging function module (20).

2. The charge and discharge simulation test system according to claim 1, wherein: The charging standard includes multiple charging standards, and at least includes a 2015+ standard version that is compatible with the 2011 version of the national standard and the 2015 version of the national standard.

3. The charge-discharge simulation test system according to claim 1, wherein: The parameter configuration module (21) includes a charging submodule and a discharging submodule; The authentication module (22) includes a code scanning authentication submodule, an eVin authentication submodule and a cloud authentication submodule; The charging reservation module (23) includes a start time submodule and a charging mode submodule; The pre-charging and energy transmission submodule (26) includes a charging submodule and a discharging submodule.

4. The charge-discharge simulation test system according to claim 1, wherein: The human-computer interaction module includes a panel control interface, which includes a charging standard option group, a charging function module option group and a sub-function module option group thereof.

5. The charge and discharge simulation test system according to claim 4, wherein: The panel control interface further includes a status display area, which is configured to display the current test phase and test status.

6. The charge-discharge simulation test system according to claim 1, wherein: The charge and discharge simulation test system further includes a test case generation module configured to generate a test case according to user customization for direct calling; The test case includes selection of the charging standard and the charging function module (20).

7. A charge and discharge simulation test method for an electric vehicle, the test method comprising at least the following steps: Interaction step S1), wherein a charging standard and a charging function module (20) are selected by means of a human-computer interaction unit (10), wherein the charging function module (20) comprises at least a parameter configuration module (21), an authentication module (22), a charging reservation module (23), an output detection module (24), a power supply module (25), a pre-charging and energy transmission module (26), and a charging end module (27); and A test step S2) is performed by means of a test unit (30) based on the selected charging standard and the charging function module (20).

8. The test method according to claim 7, wherein: The testing step S2) includes a version testing step and a function testing step, wherein the version testing step is performed first and then the function testing step.

9. The test method according to claim 8, wherein: In the functional testing step, tests based on the corresponding charging functional modules (20) are performed in sequence according to the arrangement order of the charging functional modules (20) on the panel control interface.

10. A computer program product, such as a machine-readable storage medium, comprising or storing computer program instructions, wherein the computer program is adapted to execute the charge-discharge simulation test method according to any one of claims 7 to 9 when the computer program is run on a computer.

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