Hybrid vehicle multi-system function verification method, device and equipment and storage medium

Abstract

The invention discloses a hybrid vehicle multi-system function verification method, device and equipment and a storage medium, and the method comprises the steps: judging whether a relay is in a pull-in state or not after it is detected that a vehicle body domain controller (IBCM) of a current hybrid vehicle is started; when the relay is in the pull-in state, supplying power to other controllers in the hybrid power system, carrying out gear self-learning, and judging whether self-checking of the hybrid power system succeeds or not; when it is detected that self-inspection of the hybrid power system succeeds, interactive verification is conducted on the functions of the hybrid power system, under the condition that the quality of basic software of multiple systems can be guaranteed, partial performance working conditions are verified at the same time, the development efficiency of the hybrid power testing system is improved, verification of functions, faults and performance of the hybrid power vehicle type power system is achieved, and the development cost is reduced. According to the method, the requirement for reasonable matching verification of assembly parameters required by a whole vehicle target is met, the development period of a hybrid power vehicle type system is shortened, the development cost is reduced, and the speed and efficiency of multi-system function verification of the hybrid power vehicle are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle testing, and particularly to a method, device, equipment and storage medium for verifying the functions of multiple systems of a hybrid vehicle. Background Art

[0002] In the prior art, there is a test platform structure for a hybrid vehicle system based on a battery simulator, which includes a battery simulator, a dynamometer control system, a power analyzer, and a main control computer; it also includes a fuel consumption meter, an emission analyzer, and a dynamometer set. The power analyzer transmits DC voltage data, DC current data, AC voltage data, AC current data, and power data to the dynamometer control system; it also includes an accelerator pedal and a brake pedal. The battery simulator is respectively connected to the front drive motor controller and the generator, receives the electric energy generated by the generator, and provides electric energy for the front drive motor; the battery simulator, the vehicle controller, the front drive motor controller, the engine controller, and the generator controller are connected through a Controller Area Network (CAN) bus and are connected to an On-Board Diagnostics (OBD) diagnostic port; the OBD diagnostic port is connected to the dynamometer control system through a communication line and the main control computer.

[0003] This technical solution uses real engines and generators, dynamometer sets and front drive motors, accelerator pedals and brake pedals, and vehicle controllers and battery simulators to connect, with real energy consumption to judge the working state and performance of the system; however, this technical solution has the following disadvantages.

[0004] Disadvantage 1: The system accesses the real energy consumption assembly. When the assembly is not completed in the initial stage of project development, the system functions cannot be verified.

[0005] Disadvantage 2: Some fault conditions are tested on physical objects in advance due to insufficient preliminary verification, which will cause irreversible damage to the system and affect the test cost.

[0006] Disadvantage 3: The energy flow performance during the charging process cannot be evaluated, and the hybrid test development efficiency is relatively low. Summary of the Invention

[0007] The main purpose of the present invention is to provide a method, device, equipment and storage medium for verifying the functions of multiple systems of a hybrid vehicle, aiming to solve the technical problems in the prior art that the function system test of a hybrid vehicle needs to access a real energy consumption assembly, the system functions cannot be verified in the initial stage of project development, if there are fault conditions, it will cause system damage, affect the test cost, and the hybrid test development efficiency is relatively low.

[0008] In a first aspect, the present invention provides a method for verifying the functions of multiple systems of a hybrid vehicle. The method for verifying the functions of multiple systems of the hybrid vehicle includes the following steps:

[0009] After detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle, determine whether the relay is in an energized state;

[0010] When the relay is in an energized state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful;

[0011] When detecting that the self-check of the hybrid system is successful, perform interactive verification on the functions of the hybrid system.

[0012] Optionally, before detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle and determining whether the relay is in an energized state, the method for verifying the functions of multiple systems of the hybrid vehicle further includes:

[0013] Establish a vehicle dynamics model, an engine model, an electric motor model, a battery pack model, a braking system model, and a test environment to verify the functions and performance of the current hybrid vehicle.

[0014] Optionally, establishing the vehicle dynamics model, the engine model, the electric motor model, the battery pack model, the braking system model, and the test environment to verify the functions and performance of the current hybrid vehicle includes:

[0015] Establish an in-vehicle body domain controller IBCM simulation test environment;

[0016] Establish a virtual controller VECU to simulate and test the vehicle dynamics model and the engine model;

[0017] Establish a field programmable gate array FPGA board for an electric motor controller MCU to simulate and test the electric motor model;

[0018] Establish a battery pack model for a battery management system BMS to simulate and test;

[0019] Establish a braking system model for an integrated braking controller IBC to simulate;

[0020] Establish a communication environment for multiple systems, and verify the functions and performance of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the electric motor model, the battery pack model, and the braking system model.

[0021] Optionally, after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle and determining whether the relay is in an energized state, includes:

[0022] Detect the in-vehicle body domain controller IBCM of the current hybrid vehicle in real time or periodically;

[0023] After detecting the start of the IBCM, determine whether the relay is in the closed state.

[0024] Optionally, when the relay is in the closed state, power other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful, including:

[0025] When the relay is in the closed state, control the relay output to supply power KL15 to other controllers in the hybrid system;

[0026] After the other controllers are powered on, perform gear self-learning and controller self-check, and determine whether each controller in the hybrid system passes the self-check.

[0027] Optionally, when it is detected that the self-check of the hybrid system is successful, perform interactive verification on the functions of the hybrid system, including:

[0028] When it is detected that the self-check of the hybrid system is successful, detect the states of the MCU, BMS, DC-DC converter DCDC of each vehicle model, and on-vehicle charger OBC in the hybrid system through the VECU, and power on according to the preset voltage;

[0029] Obtain the brake pedal signal and the vehicle working mode, and perform interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

[0030] Optionally, the obtaining the brake pedal signal and the vehicle working mode, and performing interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode includes:

[0031] Obtain the brake pedal signal and the vehicle working mode;

[0032] When the brake pedal signal is valid, determine the corresponding test condition according to the vehicle working mode;

[0033] Under the test condition, perform high-voltage and low-voltage power-on and power-off, driving, energy recovery, and system-level fault injection tests on the functions of the hybrid system according to the preset control logic, and obtain the interactive verification result.

[0034] In a second aspect, to achieve the above object, the present invention also provides a multi-system function verification device for a hybrid vehicle, the multi-system function verification device for a hybrid vehicle includes:

[0035] A state judgment module, configured to determine whether the relay is in the closed state after detecting the start of the in-vehicle body domain controller IBCM of the current hybrid vehicle;

[0036] A learning self-check module, configured to supply power to other controllers in the hybrid system when the relay is in the closed state, perform gear self-learning, and determine whether the self-check of the hybrid system is successful;

[0037] An interaction verification module, configured to perform interaction verification on the functions of the hybrid system when it is detected that the self-check of the hybrid system is successful.

[0038] In a third aspect, to achieve the above object, the present invention further provides a multi-system function verification device for a hybrid vehicle, where the multi-system function verification device for a hybrid vehicle includes: a memory, a processor, and a multi-system function verification program for a hybrid vehicle stored on the memory and executable on the processor, and the multi-system function verification program for a hybrid vehicle is configured to implement the steps of the multi-system function verification method for a hybrid vehicle as described above.

[0039] In a fourth aspect, to achieve the above object, the present invention further provides a storage medium, on which a multi-system function verification program for a hybrid vehicle is stored, and when the multi-system function verification program for a hybrid vehicle is executed by a processor, it implements the steps of the multi-system function verification method for a hybrid vehicle as described above.

[0040] The multi-system function verification method for a hybrid vehicle proposed by the present invention, by determining whether the relay is in the closed state after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle; when the relay is in the closed state, supplying power to other controllers in the hybrid system, performing gear self-learning, and determining whether the self-check of the hybrid system is successful; when it is detected that the self-check of the hybrid system is successful, performing interaction verification on the functions of the hybrid system, can ensure the quality of the multi-system basic software, while verifying some performance conditions, improve the development efficiency of the hybrid test system, realize the verification of the functions, faults, and performance of the power system of the hybrid vehicle model, meet the verification requirements for the reasonable matching of the assembly parameters required by the vehicle target, shorten the development cycle of the hybrid vehicle model system, reduce the development cost, and improve the speed and efficiency of the multi-system function verification of the hybrid vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the device structure of the hardware operating environment related to the solution of the embodiment of the present invention;

[0042] Figure 2 It is a schematic flowchart of the first embodiment of the multi-system function verification method for a hybrid vehicle of the present invention;

[0043] Figure 3 It is a schematic flowchart of the second embodiment of the multi-system function verification method for a hybrid vehicle of the present invention;

[0044] Figure 4Schematic diagram of the function verification system model in the multi-system function verification method for the hybrid vehicle of the present invention;

[0045] Figure 5 Schematic flowchart of the third embodiment of the multi-system function verification method for the hybrid vehicle of the present invention;

[0046] Figure 6 Schematic flowchart of the fourth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention;

[0047] Figure 7 Schematic flowchart of the fifth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention;

[0048] Figure 8 Schematic diagram of the control logic in the multi-system function verification method for the hybrid vehicle of the present invention;

[0049] Figure 9 Functional module diagram of the first embodiment of the multi-system function verification device for the hybrid vehicle of the present invention.

[0050] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0051] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0052] The solution of the embodiment of the present invention is mainly: after detecting that the in-vehicle body domain controller IBCM of the current hybrid vehicle is started, it is judged whether the relay is in the closed state; when the relay is in the closed state, power is supplied to other controllers in the hybrid system, gear self-learning is performed, and it is judged whether the self-check of the hybrid system is successful; when it is detected that the self-check of the hybrid system is successful, the function of the hybrid system is interactively verified, which can ensure the quality of the multi-system basic software, while verifying some performance conditions, improving the development efficiency of the hybrid test system, realizing the verification of the functions, faults and performances of the power system of the hybrid vehicle model, meeting the verification requirements for the reasonable matching of the assembly parameters of the vehicle target requirements, shortening the development cycle of the hybrid vehicle model system, reducing the development cost, improving the speed and efficiency of the multi-system function verification of the hybrid vehicle, and solving the technical problems in the prior art that the function system test of the hybrid vehicle needs to access the real power consumption assembly, the system function cannot be verified in the initial stage of project development, if there are fault conditions, it will cause system damage, affect the test cost, and the hybrid test development efficiency is relatively low.

[0053] Refer to Figure 1 , Figure 1 Schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0054] AsFigure 1 As shown in the figure, the device may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to implement connection communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed RAM memory or a stable memory (Non-Volatile Memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0055] Those skilled in the art can understand that Figure 1 the device structure shown in the figure does not constitute a limitation on the device, and it may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements.

[0056] As Figure 1 shown, the memory 1005, as a storage medium, may include an operating device, a network communication module, a user interface module, and a hybrid vehicle multi-system function verification program.

[0057] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001 and performs the following operations:

[0058] After detecting that the in-vehicle body domain controller IBCM of the current hybrid vehicle is started, determine whether the relay is in the closed state;

[0059] When the relay is in the closed state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful;

[0060] When it is detected that the self-check of the hybrid system is successful, perform an interactive verification on the functions of the hybrid system.

[0061] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001 and also performs the following operations:

[0062] Establish a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model, and a test environment to implement the function and performance verification of the current hybrid vehicle.

[0063] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0064] Establish an IBCM simulation test environment for the body domain controller;

[0065] Establish a VECU simulation to test the vehicle dynamics model and the engine model of the whole vehicle;

[0066] Establish a motor model of the FPGA board for the MCU simulation test of the motor controller;

[0067] Establish a battery pack model for the BMS simulation test;

[0068] Establish a braking system model for the IBC simulation;

[0069] Establish a communication environment for multiple systems, and verify the functions and performance of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the motor model, the battery pack model, and the braking system model.

[0070] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0071] Detect the IBCM of the current hybrid vehicle in real time or periodically;

[0072] After detecting the start of the IBCM, determine whether the relay is in the closed state.

[0073] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0074] When the relay is in the closed state, control the relay output to supply power KL15 to other controllers in the hybrid system;

[0075] After the other controllers are powered on, perform gear self-learning and controller self-check, and determine whether the self-check of each controller in the hybrid system is successful.

[0076] The device of the present invention calls the hybrid vehicle multi-system function verification program stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0077] When it is detected that the self-check of the hybrid system is successful, detect the states of the MCU, BMS, DCDC of the DC-DC converter of each model of the whole vehicle, and the OBC in the hybrid system through the VECU, and power on according to the preset voltage;

[0078] Obtain the brake pedal signal and the vehicle working mode, and perform interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

[0079] The device of the present invention calls the multi-system function verification program for hybrid vehicles stored in the memory 1005 through the processor 1001, and also performs the following operations:

[0080] Obtain the brake pedal signal and the vehicle working mode;

[0081] When the brake pedal signal is valid, determine the corresponding test condition according to the vehicle working mode;

[0082] Under the test condition, perform high-voltage and low-voltage power-on and power-off, driving, energy recovery and system-level fault injection tests on the functions of the hybrid system to obtain the interactive verification result.

[0083] Through the above solution in this embodiment, after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle, it is judged whether the relay is in the closed state; when the relay is in the closed state, power is supplied to other controllers in the hybrid system, gear self-learning is performed, and it is judged whether the self-check of the hybrid system is successful; when it is detected that the self-check of the hybrid system is successful, interactive verification is performed on the functions of the hybrid system, which can ensure the quality of the multi-system basic software, while verifying some performance conditions, improving the development efficiency of the hybrid test system, realizing the verification of the functions, faults and performances of the powertrain system of the hybrid vehicle model, meeting the verification requirements for the reasonable matching of the assembly parameters required by the vehicle, shortening the development cycle of the hybrid vehicle model system, reducing the development cost, and improving the speed and efficiency of the multi-system function verification of the hybrid vehicle.

[0084] Based on the above hardware structure, an embodiment of the multi-system function verification method for hybrid vehicles of the present invention is proposed.

[0085] Refer to Figure 2 , Figure 2 is a schematic flow chart of the first embodiment of the multi-system function verification method for hybrid vehicles of the present invention.

[0086] In the first embodiment, the multi-system function verification method for hybrid vehicles includes the following steps:

[0087] Step S10: After detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle, judge whether the relay is in the closed state.

[0088] It should be noted that after detecting the startup of the in-vehicle body domain controller (Intelligent Body Control Module, IBCM) of the current hybrid vehicle, it is possible to timely judge whether the relay is in the closed state.

[0089] Step S20: When the relay is in the closed state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful.

[0090] It should be understood that when it is detected that the relay is in the closed state, power can be supplied to other controllers in the hybrid system, and then gear self-learning can be performed, and it can be further determined whether the self-check of the hybrid system is successful.

[0091] Step S30: When it is detected that the self-check of the hybrid system is successful, perform interactive verification on the functions of the hybrid system.

[0092] It can be understood that when it is detected that the self-check of the hybrid system is successful, interactive verification of functions, performance, and faults of the hybrid system functions can be performed.

[0093] Through the above solution, in this embodiment, after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle, it is determined whether the relay is in the closed state; when the relay is in the closed state, power is supplied to other controllers in the hybrid system, gear self-learning is performed, and it is determined whether the self-check of the hybrid system is successful; when it is detected that the self-check of the hybrid system is successful, interactive verification of the functions of the hybrid system is performed, which can ensure the quality of the basic software of multiple systems, while verifying some performance conditions, improve the development efficiency of the hybrid test system, realize the verification of the functions, faults, and performance of the power system of the hybrid vehicle model, meet the verification requirements for the reasonable matching of the assembly parameters of the vehicle target requirements, shorten the development cycle of the hybrid vehicle model system, reduce the development cost, and improve the speed and efficiency of the multi-system function verification of the hybrid vehicle.

[0094] Further, Figure 3 is a schematic flowchart of the second embodiment of the multi-system function verification method for the hybrid vehicle of the present invention. As Figure 3 shown, based on the first embodiment, the second embodiment of the multi-system function verification method for the hybrid vehicle of the present invention is proposed. In this embodiment, before the step S10, the multi-system function verification method for the hybrid vehicle further specifically includes the following steps:

[0095] Step S01: Establish a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model, and a test environment to implement the function and performance verification of the current hybrid vehicle.

[0096] It should be noted that before verifying the functions of multiple systems of a hybrid vehicle, the test conditions need to be prepared first, that is, a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model and a test environment are established to verify the functions and performance of the current hybrid vehicle, so as to construct a multi-system test platform close to the real vehicle, avoiding the defects of difficult assembly, huge energy consumption and high test cost in the prior art when using real vehicle equipment.

[0097] Further, the step S01 specifically includes the following steps:

[0098] Establish an IBCM simulation test environment for the body domain controller;

[0099] Establish a VECU simulation test for the vehicle dynamics model and the engine model of the virtual controller;

[0100] Establish a motor model of the FPGA board for the MCU simulation test of the motor controller;

[0101] Establish a battery pack model for the BMS simulation test of the battery management system;

[0102] Establish a braking system model for the IBC simulation of the integrated braking controller;

[0103] Establish a communication environment for multiple systems, and verify the functions and performance of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the motor model, the battery pack model and the braking system model.

[0104] It should be noted that refer to Figure 4 , Figure 4 which is a schematic diagram of the function verification system model in the method for verifying the functions of multiple systems of the hybrid vehicle of the present invention. As Figure 4As shown, an IBCM simulation test environment is established to ensure the normal function of low-voltage power-on; a virtual electronic control unit (VECU) is established to simulate the vehicle dynamics environment of the whole vehicle, including simulating the vehicle dynamics model and the engine model of the whole vehicle, which can ensure the normal operation of the controller; a motor control unit (MCU) is established to simulate the motor model of the FPGA board to be tested, so as to ensure the normal operation of the simulated motor assembly; a battery management system (BMS) is established to simulate the battery pack model to be tested, so as to ensure the normal discharge and charging functions; an integrated brake control (IBC) is established to simulate the brake bench, that is, the brake system model, so as to ensure the normal brake system; a multi-system communication environment can be established to ensure the normal signal interaction of each controller; generally, communication between the host computer and the multi-core processor can also be established to achieve synchronous control.

[0105] In this embodiment, through the above solutions, by establishing a vehicle dynamics model, an engine model, a motor model, a battery pack model, a brake system model and a test environment, the function and performance verification of the current hybrid vehicle can be realized, and a multi-system test platform close to the real vehicle can be constructed, overcoming the defects of difficult assembly, huge energy consumption and high test cost in the prior art when using real vehicle equipment, and improving the speed and efficiency of the multi-system function verification of the hybrid vehicle.

[0106] Furthermore, Figure 5 is a schematic flowchart of the third embodiment of the method for verifying the multi-system functions of the hybrid vehicle of the present invention. As Figure 5 shown, based on the first embodiment, the third embodiment of the method for verifying the multi-system functions of the hybrid vehicle of the present invention is proposed. In this embodiment, the step S10 specifically includes the following steps:

[0107] Step S11: Detect the in-vehicle body domain controller IBCM of the current hybrid vehicle in real time or periodically.

[0108] It should be noted that the in-vehicle body domain controller IBCM of the current hybrid vehicle can be detected. The detection can be real-time or periodic according to a preset detection period. This embodiment does not limit this.

[0109] Step S12: After detecting that the IBCM is started, judge whether the relay is in the closed state.

[0110] It is understandable that after detecting the startup of the IBCM, it is possible to promptly determine whether the relay is in the closed state. Generally, if it is not closed, it indicates that the system has not been powered on yet. At this time, the state of the relay can be waited for, or the system power-on situation can be checked.

[0111] In this embodiment, through the above solution, the in-vehicle body domain controller IBCM of the current hybrid vehicle is detected in real time or periodically; after detecting the startup of the IBCM, it is determined whether the relay is in the closed state, which can quickly determine the relay state and improve the speed and efficiency of multi-system function verification of the hybrid vehicle.

[0112] Furthermore, Figure 6 is a flowchart of the fourth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention. As Figure 6 shown, based on the first embodiment, the fourth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention is proposed. In this embodiment, the step S20 specifically includes the following steps:

[0113] Step S21: When the relay is in the closed state, control the relay to output and supply power KL15 to other controllers in the hybrid system.

[0114] It should be noted that when the relay is in the closed state, the relay can be controlled to output and supply power KL15 to other controllers in the hybrid system, thereby completing the low-voltage power-on. KL15 power refers to a specific signal on the vehicle, representing the engine ignition signal, corresponding to the IGN state of the vehicle key, that is, the signal when starting the vehicle.

[0115] Step S22: After the other controllers are powered on, perform gear self-learning and controller self-check, and determine whether the self-check of each controller in the hybrid system is successful.

[0116] It is understandable that according to the low-voltage power-on, gear self-learning and controller self-check are performed, that is, after the other controllers are powered on, gear self-learning and controller self-check are performed, and it is determined whether the self-check of each controller in the hybrid system is successful.

[0117] In this embodiment, through the above solution, by controlling the relay to output and supply power KL15 to other controllers in the hybrid system when the relay is in the closed state; after the other controllers are powered on, performing gear self-learning and controller self-check, and determining whether the self-check of each controller in the hybrid system is successful, it is possible to verify some performance conditions while ensuring the quality of the multi-system basic software, and improve the development efficiency of the hybrid test system.

[0118] Furthermore, Figure 7 is a flowchart of the fifth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention. As Figure 7As shown, based on the first embodiment, the fifth embodiment of the multi-system function verification method for the hybrid vehicle of the present invention is proposed. In this embodiment, the step S30 specifically includes the following steps:

[0119] Step S31: When it is detected that the self-check of the hybrid system is successful, the VECU detects the states of the MCU, BMS, the DC-DC converter DCDC of each vehicle model, and the on-board charger OBC in the hybrid system, and powers on according to a preset voltage.

[0120] It should be noted that when it is detected that the self-check of the hybrid system is successful, the VECU can detect the states of the MCU, BMS, the DC-DC converter DCDC of each vehicle model, and the on-board charger (OBC) in the hybrid system, and powers on according to a preset voltage. Generally, the VECU detects the states of the MCU, BMS, the DCDC of the vehicle model, and the OBC in the test system and powers on with high voltage.

[0121] Step S32: Obtain the brake pedal signal and the vehicle working mode, and perform an interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

[0122] It can be understood that the brake pedal signal and the vehicle working mode are obtained, and then the functions of the hybrid system are interactively verified according to the brake pedal signal and the vehicle working mode.

[0123] Further, the step S32 specifically includes the following steps:

[0124] Obtain the brake pedal signal and the vehicle working mode;

[0125] When the brake pedal signal is valid, determine the corresponding test condition according to the vehicle working mode;

[0126] Under the test condition, perform high-voltage and low-voltage power-on and power-off, driving, energy recovery, and system-level fault injection tests on the functions of the hybrid system to obtain an interactive verification result.

[0127] It should be understood that

[0128] In specific implementation, as Figure 8 shown, Figure 8 is the schematic diagram of the control logic in the multi-system function verification method for the hybrid vehicle of the present invention. Refer to Figure 8, the IBCM controller starts, controls the relay output, powers the other controllers with KL15, and completes the low-voltage power-on; based on the low-voltage power-on, it completes gear self-learning and controller self-check; the VECU detects the states of the MCU, BMS, and vehicle model DCDC and OBC in the test system and powers on the high voltage; sets the brake pedal signal to be valid. After the power system is activated, it sets the vehicle dynamics model parameters to make the vehicle model work in pure electric, hybrid, and fuel modes; sets specific working conditions to make the system drive in specific scenarios and verifies the functional interaction of each system; sets various abnormal working conditions to investigate the fault response and fault degradation actions and verify the system functional safety performance; after the IBCM starts, it judges whether the relay is in the closed state; if not, it means the system has not been powered on with KL15 and waits for the relay to be in the closed state; if so, the system is powered on with KL15; performs gear self-learning and judges whether the system self-check is successful; if not, it reports the fault and maintains it until the KL15 power is on; if so, it sends a high-voltage command to the high-voltage components and the system powers on the high voltage; the vehicle speed signal is valid and the brake pedal is depressed to complete the activation of the power system; completes gear shifting to achieve driving; realizes the working mode switching according to the driving mode and SOC value, realizes the interaction verification, and conducts typical working condition function tests such as high- and low-voltage power-on and off, driving, and energy recovery according to the control logic; according to the vehicle diagnosis requirements, conducts system-level fault injection tests to verify the system diagnosis function.

[0129] In this embodiment, through the above solution, when it is detected that the hybrid system self-check is successful, the VECU detects the states of the MCU, BMS, the direct current - direct current converter DCDC of each vehicle model, and the on-board charger OBC in the hybrid system, and powers on according to the preset voltage; obtains the brake pedal signal and the vehicle working mode, and conducts interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode. It can ensure the quality of the basic software of multiple systems, while verifying some performance working conditions, improve the development efficiency of the hybrid test system, realize the verification of the functions, faults, and performance of the power system of the hybrid vehicle model, meet the verification requirements for the reasonable matching of the assembly parameters required by the vehicle target, shorten the development cycle of the hybrid vehicle model system, reduce the development cost, and improve the speed and efficiency of the multi-system function verification of the hybrid vehicle.

[0130] Correspondingly, the present invention further provides a multi-system function verification device for a hybrid vehicle.

[0131] Refer to Figure 9 , Figure 9 which is the functional module diagram of the first embodiment of the multi-system function verification device for a hybrid vehicle of the present invention.

[0132] In the first embodiment of the multi-system function verification device for a hybrid vehicle of the present invention, the multi-system function verification device for a hybrid vehicle includes:

[0133] The status judgment module 10 is used to judge whether the relay is in the closed state after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle.

[0134] The learning and self-checking module 20 is used to supply power to other controllers in the hybrid system when the relay is in the closed state, perform gear self-learning, and judge whether the self-check of the hybrid system is successful.

[0135] The interaction verification module 30 is used to perform interaction verification on the functions of the hybrid system when it is detected that the self-check of the hybrid system is successful.

[0136] The status judgment module 10 is also used to establish a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model, and a test environment to realize the function and performance verification of the current hybrid vehicle.

[0137] The status judgment module 10 is also used to establish an in-vehicle body domain controller IBCM simulation test environment; establish a virtual controller VECU to simulate and test the vehicle dynamics model and the engine model; establish a motor controller MCU to simulate the motor model of the field programmable gate array FPGA board; establish a battery management system BMS to simulate the battery pack model; establish an integrated brake controller IBC to simulate the braking system model; establish a communication environment for multiple systems, and realize the function and performance verification of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the motor model, the battery pack model, and the braking system model.

[0138] The status judgment module 10 is also used to detect the in-vehicle body domain controller IBCM of the current hybrid vehicle in real time or periodically; after detecting the startup of the IBCM, judge whether the relay is in the closed state.

[0139] The learning and self-checking module 20 is also used to control the relay output to supply power to other controllers in the hybrid system KL15 when the relay is in the closed state; perform gear self-learning and controller self-checking after the other controllers are powered on, and judge whether the self-check of each controller in the hybrid system is successful.

[0140] The interaction verification module 30 is also used to detect the states of the MCU, BMS, DC-DC converter DCDC, and on-board charger OBC of each model in the hybrid system through the VECU when it is detected that the self-check of the hybrid system is successful, and power on according to the preset voltage; obtain the brake pedal signal and the vehicle working mode, and perform interaction verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

[0141] The interaction verification module 30 is further configured to obtain a brake pedal signal and a vehicle working mode; when the brake pedal signal is valid, determine a corresponding test condition according to the vehicle working mode; and perform high-voltage and low-voltage power-on and power-off, driving, energy recovery, and system-level fault injection tests on the hybrid system function according to a preset control logic under the test condition to obtain an interaction verification result.

[0142] Wherein, the steps implemented by each functional module of the hybrid vehicle multi-system function verification device can refer to each embodiment of the hybrid vehicle multi-system function verification method of the present invention, which will not be elaborated here.

[0143] In addition, an embodiment of the present invention further provides a storage medium, on which a hybrid vehicle multi-system function verification program is stored. When the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are implemented:

[0144] After detecting that the in-vehicle body domain controller IBCM of the current hybrid vehicle is started, determine whether the relay is in an energized state;

[0145] When the relay is in an energized state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful;

[0146] When it is detected that the self-check of the hybrid system is successful, perform interaction verification on the hybrid system function.

[0147] Further, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0148] Establish a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model, and a test environment to verify the functions and performance of the current hybrid vehicle.

[0149] Further, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0150] Establish an in-vehicle body domain controller IBCM simulation test environment;

[0151] Establish a virtual controller VECU to simulate a vehicle dynamics model and an engine model of a test vehicle;

[0152] Establish a motor model of a field programmable gate array FPGA board for simulating a motor controller MCU;

[0153] Establish a battery pack model for simulating a battery management system BMS;

[0154] Establish a braking system model for simulating an integrated brake controller IBC;

[0155] Establish a communication environment for multiple systems, and verify the functions and performance of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the motor model, the battery pack model, and the braking system model.

[0156] Furthermore, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0157] Detect the in-vehicle body domain controller IBCM of the current hybrid vehicle in real time or periodically;

[0158] After detecting the startup of the IBCM, determine whether the relay is in the closed state.

[0159] Furthermore, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0160] When the relay is in the closed state, control the relay output to supply power KL15 to other controllers in the hybrid system;

[0161] After the other controllers are powered on, perform gear self-learning and controller self-check, and determine whether the self-check of each controller in the hybrid system is successful.

[0162] Furthermore, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0163] When it is detected that the self-check of the hybrid system is successful, detect the states of the MCU, BMS, DC-DC converter DCDC of each vehicle model, and on-board charger OBC in the hybrid system through the VECU, and power on according to the preset voltage;

[0164] Obtain the brake pedal signal and the vehicle working mode, and perform interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

[0165] Furthermore, when the hybrid vehicle multi-system function verification program is executed by a processor, the following operations are also implemented:

[0166] Obtain the brake pedal signal and the vehicle working mode;

[0167] When the brake pedal signal is valid, determine the corresponding test condition according to the vehicle working mode;

[0168] Under the test condition, perform high and low voltage power on and off, driving, energy recovery, and system-level fault injection tests on the functions of the hybrid system according to the preset control logic, and obtain the interactive verification result.

[0169] Those skilled in the art can understand that all or part of the steps in the above implementation methods can be completed by instructing relevant hardware through a program. This program is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present application; and the aforementioned storage medium is a computer-readable storage medium, including: USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs, etc., all kinds of media that can store program codes.

[0170] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including that element.

[0171] The serial numbers of the above embodiments of the present invention are only for description and do not represent the superiority or inferiority of the embodiments.

[0172] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A multi-system function verification method for a hybrid vehicle, characterized in that The multi-system function verification method for the hybrid vehicle includes: After detecting the startup of the In-Vehicle Body Control Module (IBCM) of the current hybrid vehicle, determine whether the relay is in the closed state; When the relay is in the closed state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful; When detecting that the self-check of the hybrid system is successful, perform interactive verification on the functions of the hybrid system.

2. The multi-system function verification method for a hybrid vehicle according to claim 1, wherein Before determining whether the relay is in the closed state after detecting the startup of the In-Vehicle Body Control Module (IBCM) of the current hybrid vehicle, the multi-system function verification method for the hybrid vehicle further includes: Establish a vehicle dynamics model, an engine model, a motor model, a battery pack model, a braking system model, and a test environment to verify the functions and performance of the current hybrid vehicle.

3. The multi-system function verification method for a hybrid vehicle according to claim 2, characterized in that The establishment of the vehicle dynamics model, the engine model, the motor model, the battery pack model, the braking system model, and the test environment to verify the functions and performance of the current hybrid vehicle includes: Establish an In-Vehicle Body Control Module (IBCM) simulation test environment; Establish a Virtual Electronic Control Unit (VECU) to simulate and test the vehicle dynamics model and the engine model; Establish a motor model on the Field Programmable Gate Array (FPGA) board card for simulating and testing by the Motor Control Unit (MCU); Establish a battery pack model for simulating and testing by the Battery Management System (BMS); Establish a braking system model by simulating the Integrated Brake Controller (IBC); Establish a communication environment for multiple systems, and verify the functions and performance of the current hybrid vehicle according to the test environment, the communication environment, the vehicle dynamics model, the engine model, the motor model, the battery pack model, and the braking system model.

4. The multi-system function verification method for a hybrid vehicle according to claim 1, wherein, The determination of whether the relay is in the closed state after detecting the startup of the In-Vehicle Body Control Module (IBCM) of the current hybrid vehicle includes: Detect the In-Vehicle Body Control Module (IBCM) of the current hybrid vehicle in real time or periodically; After detecting the startup of the IBCM, determine whether the relay is in the closed state.

5. The multi-system function verification method for a hybrid vehicle according to claim 1, wherein When the relay is in the closed state, supply power to other controllers in the hybrid system, perform gear self-learning, and determine whether the self-check of the hybrid system is successful, including: When the relay is in the closed state, control the relay output to supply power KL15 to other controllers in the hybrid system; After the power-on of the other controllers is completed, perform gear self-learning and controller self-check, and determine whether the self-check of each controller in the hybrid system is successful.

6. The multi-system function verification method for a hybrid vehicle according to claim 1, wherein When detecting that the self-check of the hybrid system is successful, perform interactive verification on the functions of the hybrid system, including: When detecting that the self-check of the hybrid system is successful, detect the states of the Motor Control Unit (MCU), the Battery Management System (BMS), the DC-DC converter (DCDC) of each vehicle model, and the On-Board Charger (OBC) in the hybrid system through the VECU, and power on according to the preset voltage; Obtain the brake pedal signal and the vehicle working mode, and perform interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode.

7. The multi-system function verification method for a hybrid vehicle according to claim 6, wherein, The obtaining of the brake pedal signal and the vehicle working mode, and the performing of interactive verification on the functions of the hybrid system according to the brake pedal signal and the vehicle working mode include: Obtain the brake pedal signal and the vehicle working mode; When the brake pedal signal is valid, determine the corresponding test condition according to the vehicle working mode; Under the test condition, perform high-voltage and low-voltage power-on and power-off, driving, energy recovery, and system-level fault injection tests on the hybrid system function according to the preset control logic, and obtain the interactive verification result.

8. A multi-system function verification device for a hybrid vehicle, characterized in that The multi-system function verification device for the hybrid vehicle includes: A status judgment module, configured to judge whether the relay is in the closed state after detecting the startup of the in-vehicle body domain controller IBCM of the current hybrid vehicle; A learning and self-checking module, configured to supply power to other controllers in the hybrid system when the relay is in the closed state, perform gear self-learning, and judge whether the self-check of the hybrid system is successful; An interactive verification module, configured to perform interactive verification on the hybrid system function when detecting that the self-check of the hybrid system is successful.

9. A multi-system function verification device for a hybrid vehicle, characterized in that The multi-system function verification device for the hybrid vehicle includes: a memory, a processor, and a multi-system function verification program for the hybrid vehicle stored on the memory and executable on the processor. The multi-system function verification program for the hybrid vehicle is configured to implement the steps of the multi-system function verification method for the hybrid vehicle according to any one of claims 1 to 7.

10. A storage medium, characterized in that, The multi-system function verification program for the hybrid vehicle is stored on the storage medium. When the multi-system function verification program for the hybrid vehicle is executed by the processor, the steps of the multi-system function verification method for the hybrid vehicle according to any one of claims 1 to 7 are implemented.

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