Vehicle door handle power-off unlocking test method and device, medium and equipment

Abstract

The invention provides a vehicle door handle power-off unlocking test method and device, a medium and equipment, and the method comprises the steps: collecting a response signal of a to-be-tested vehicle in response to an impact signal of impact signal generation equipment; calculating the low-voltage power-off delay duration of the to-be-tested vehicle; based on the low-voltage power-off delay duration, responding to the impact signal, and controlling power-off equipment to disconnect a low-voltage power supply of the to-be-tested vehicle; acquiring a door handle unlocking state of the to-be-tested vehicle; determining a handle power-off unlocking test result of the to-be-tested vehicle based on the door handle unlocking state of the to-be-tested vehicle and the response signal; the impact signal is generated through the impact signal generation equipment to replace a real collision experiment and reduce experiment loss, and the low-voltage power supply of the to-be-tested vehicle is rapidly cut off through the power-off equipment to realize millisecond-level power-off operation, so that the test precision is improved, the low-voltage power-off delay duration of the tested vehicle is accurately calculated, and the test accuracy is improved. And the test precision is further improved.

Description

Technical Field

[0001] This application relates to the field of vehicle testing technology, specifically to a test method, device, medium, and equipment for unlocking a vehicle door handle when it is powered off. Background Technology

[0002] With the continuous development of automotive intelligence and safety regulations, the safety protection and rescue escape capabilities of vehicles after collisions are receiving increasing attention. Among these, automatic door unlocking after an accident (especially the electric door handle release function) is a crucial element in ensuring the rapid escape of occupants and timely rescue by external forces. However, in actual traffic accidents, after a severe collision, not only does the vehicle's structure deform, but its electrical system is also highly susceptible to damage. In particular, the auxiliary battery, which supplies power to the low-voltage network, may lose power due to short circuits in the wiring harness, detached connectors, or vehicle deformation caused by the collision. If the low-voltage auxiliary system battery loses power at the moment of impact or shortly thereafter, it will directly cause the electrically driven door release mechanism to fail, preventing the doors from opening properly and seriously endangering the efficiency of post-accident rescue and the safety of occupants.

[0003] Currently, the crash test methods commonly used in the field of automotive safety performance testing, such as frontal and side impact tests, mainly focus on the structural strength of the vehicle body, the response of restraint systems (such as airbags and seat belt pretensioners), and the safety protection of high-voltage electrical systems. These traditional mechanical crash tests are difficult to accurately and repeatably simulate the extreme condition of a collision causing the low-voltage auxiliary system battery to lose power. Therefore, they cannot effectively assess whether the electric release door handle function can still work normally as designed (e.g., through stored electrical energy or mechanical redundancy) under the harsh condition of "power loss".

[0004] To assess a vehicle's power-off response in a laboratory environment, existing technologies employ several conventional low-voltage battery disconnection methods. However, these methods typically have significant drawbacks: for example, manually or via a simple mechanical switch to disconnect the power takes a considerable amount of time (seconds or even longer), failing to simulate the millisecond-level power disconnection process at the moment of impact; furthermore, these methods struggle to achieve precise and synchronized control with the restraint system deployment signal emitted by the airbag ECU during a full-vehicle crash test, making it impossible to rapidly disconnect the battery within the same time window as the deployment of irreversible restraint devices (such as airbags and pretensioners), thus failing to recreate the complex scenario of multiple events occurring simultaneously in a real accident.

[0005] Therefore, there is an urgent need to develop a low-voltage auxiliary system battery power-off method and device that can achieve millisecond-level rapid response and coordinate with the ignition signal of the vehicle's irreversible restraint device, in order to meet the testing requirements for accurately assessing the vehicle's electric release door handle function under extreme power-off conditions. Summary of the Invention

[0006] To address the aforementioned technical problems, this application is proposed. Embodiments of this application provide a method, apparatus, medium, and device for testing the power-off unlocking of a vehicle door handle.

[0007] According to one aspect of this application, a test method for power-off unlocking of a vehicle door handle is provided, applied to a test system for power-off unlocking of a vehicle door handle. The test system includes a test vehicle, an impact signal generating device, and a power-off device connected to each other. The test method for power-off unlocking of the vehicle door handle includes: acquiring a response signal of the test vehicle in response to an impact signal from the impact signal generating device; wherein the response signal includes a door handle unlocking signal of the test vehicle; calculating a low-voltage power-off delay duration of the test vehicle; controlling the power-off device to disconnect the low-voltage power supply of the test vehicle in response to the impact signal based on the low-voltage power-off delay duration; obtaining the door handle unlocking state of the test vehicle; and determining the door handle power-off unlocking test result of the test vehicle based on the door handle unlocking state of the test vehicle and the response signal.

[0008] In one embodiment, the vehicle under test includes at least one low-voltage power supply; wherein, calculating the low-voltage power supply delay duration of the vehicle under test includes: calculating the power-off delay duration of all low-voltage power supplies of the vehicle under test; calculating the time difference between the impact signal triggering the low-voltage power-off of the vehicle under test; and determining the low-voltage power supply delay duration of the vehicle under test based on the power-off delay duration of all low-voltage power supplies of the vehicle under test and the time difference.

[0009] In one embodiment, calculating the time difference between the impact signal triggering the low-voltage power outage of the vehicle under test includes: calculating the cumulative impact energy corresponding to the impact signal by integrating based on the signal curve of the impact signal; calculating the triggering time corresponding to the cumulative impact energy reaching a preset energy threshold; and calculating the time difference based on the triggering time and the generation time of the impact signal.

[0010] In one embodiment, the power-off device includes a relay connected in series with the low-voltage power supply of the vehicle under test; wherein, controlling the power-off device to disconnect the low-voltage power supply of the vehicle under test in response to the impact signal based on the low-voltage power-off delay time includes: in response to the impact signal, and after the low-voltage power-off delay time, controlling the relay to disconnect the low-voltage power supply of the vehicle under test.

[0011] In one embodiment, obtaining the door handle unlocking status of the vehicle under test includes: obtaining the duration of the door handle unlocking signal of the vehicle under test; and determining the door handle unlocking status of the vehicle under test based on the duration of the door handle unlocking signal of the vehicle under test.

[0012] In one embodiment, determining the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking status of the vehicle under test and the response signal includes: if the door handle unlocking status of the vehicle under test is unlocked, then determining the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking completion time and the generation time of the response signal.

[0013] In one embodiment, determining the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking completion time and the response signal generation time includes: if the time difference between the door handle unlocking completion time and the response signal generation time is less than a preset time threshold, then the door handle power-off unlocking test result of the vehicle under test is determined to be passed.

[0014] According to another aspect of this application, a test device for power-off unlocking of vehicle door handles is provided, disposed in a test system for power-off unlocking of vehicle door handles. The test system includes a test vehicle, an impact signal generating device, and a power-off device connected to each other. The test device for power-off unlocking of vehicle door handles includes: a response signal acquisition module, used to acquire a response signal of the test vehicle in response to an impact signal from the impact signal generating device; wherein the response signal includes a door handle unlocking signal of the test vehicle; a delay duration calculation module, used to calculate a low-voltage power-off delay duration of the test vehicle; a low-voltage power-off module, used to control the power-off device to disconnect the low-voltage power supply of the test vehicle in response to the impact signal based on the low-voltage power-off delay duration; an unlocking status acquisition module, used to acquire the unlocking status of the door handle of the test vehicle; and a test result determination module, used to determine the power-off unlocking test result of the door handle of the test vehicle based on the unlocking status of the door handle of the test vehicle and the response signal.

[0015] According to another aspect of this application, a computer-readable storage medium is provided, the storage medium storing a computer program for performing any of the methods described above.

[0016] According to another aspect of this application, an electronic device is provided, comprising: a processor; a memory for storing processor-executable instructions; the processor being configured to perform any of the methods described above.

[0017] This application provides a test method, apparatus, medium, and equipment for power-off unlocking of vehicle door handles. In response to an impact signal from an impact signal generation device, the method acquires a response signal from the vehicle under test. The response signal includes the door handle unlocking signal of the vehicle under test. The method calculates the low-voltage power-off delay time of the vehicle under test. Based on the low-voltage power-off delay time, in response to the impact signal, the method controls a power-off device to disconnect the low-voltage power supply to the vehicle under test. The method obtains the unlocking state of the door handle of the vehicle under test. Based on the unlocking state of the door handle and the response signal, the method determines the power-off unlocking test result of the door handle. The method generates an impact signal using an impact signal generation device to replace a real collision experiment, reducing experimental losses. Furthermore, the method uses a power-off device to quickly disconnect the low-voltage power supply to the vehicle under test, achieving millisecond-level power-off operation, thereby improving test accuracy. Simultaneously, the method accurately calculates the low-voltage power-off delay time of the test vehicle, further improving test accuracy. Attached Figure Description

[0018] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 This is a schematic diagram of the structure of a test system for unlocking a vehicle door handle by power failure, provided in an exemplary embodiment of this application.

[0020] Figure 2 This is a flowchart illustrating a test method for unlocking a vehicle door handle by power failure, provided in an exemplary embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the structure of a test device for unlocking a vehicle door handle by power failure, provided in an exemplary embodiment of this application.

[0022] Figure 4 This is a structural diagram of an electronic device provided in an exemplary embodiment of this application. Detailed Implementation

[0023] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0024] Figure 1 This is a schematic diagram of the structure of a test system for unlocking a vehicle door handle in the event of a power failure, provided in an exemplary embodiment of this application. Figure 1As shown, the test system for unlocking vehicle door handles by power failure includes a test vehicle, an impact signal generation device, and a power failure device connected to each other; wherein, the test vehicle contains a low-voltage battery (such as... Figure 1The low-voltage battery shown is the internal battery of the vehicle under test (placed externally for emphasis). This application utilizes an impact signal generation device to generate an impact signal to simulate the collision impact signal generated in a collision scenario, thereby triggering operations such as low-voltage power failure and door handle unlocking of the vehicle under test. Upon receiving the impact signal, this application can use a power-off device (connected in series with the low-voltage battery) to cut off the low-voltage power supply to simulate the low-voltage power failure condition during a collision. The vehicle under test will then automatically unlock its door handles upon receiving the impact signal. This application can also configure a host computer connected to the power-off device to collect relevant data in real time, thereby obtaining test results. Preferably, this application can use a sliding impact device and an airbag controller as impact signal generating devices. Specifically, the sliding impact device is used to impact the standard collision waveform of the airbag controller to generate an impact signal, or an energy-adjustable impact device is used to make the built-in acceleration sensor of the airbag controller reach the trigger threshold. The sliding impact device can be loaded with a custom acceleration curve by a host computer, and after integrating the acceleration-time curve, it automatically outputs the impact velocity corresponding to the loading curve. The airbag controller is bolted to the sliding impact device or the energy-adjustable impact device via a universal mounting platform, and its interface is connected to the vehicle under test via an airbag controller extension harness. Preferably, this application can use a 2-ohm resistor instead of an airbag or pre-tensioned seat belt to form a connection with the airbag controller. The power-off device can be triggered by the voltage change generated after the airbag controller emits the detonation current, or by an external voltage change. After triggering, a set time is started. Preferably, this application can also use an analog signal generator as an impact signal generating device to generate impact signals with different duty cycles and frequencies, and send the analog signal to the body controller assembly, or input the vehicle manufacturer's corresponding command to the body controller to trigger the vehicle's collision mode via the CAN protocol. Preferably, the power-off device of this application can include a relay, a PLC programmable switch, a pulse extension module, a 25A solid-state relay, and an electrical isolation module. The relay is connected to the low-voltage power supply circuit of the vehicle under test to realize the switching of the low-voltage power supply. The PLC programmable switch is connected to the host computer and controls the on and off of the relay according to the instructions of the host computer. The pulse signal extension module can extend the pulse detonation current (impact signal) emitted by the airbag controller (impact signal generating device) into a pulse current with a duration of 10ms through circuit conversion. The electrical isolation module is optocoupler isolation, which can effectively prevent reverse current from damaging the built-in capacitor of the airbag controller. Furthermore, an isolation module with at least two positive and negative terminals is selected for the input interface to eliminate the influence of the unknown positive and negative terminals of the detonation line on the signal extension through wiring.

[0025] Figure 2This is a flowchart illustrating a test method for unlocking a vehicle door handle after a power outage, provided in an exemplary embodiment of this application. This test method for unlocking a vehicle door handle after a power outage is applied to the aforementioned test system for unlocking a vehicle door handle after a power outage, such as... Figure 2 As shown, the test method for unlocking the vehicle door handle by power failure includes the following steps: Step 210: In response to the impact signal from the impact signal generation device, acquire the response signal of the vehicle under test.

[0026] The response signal includes the door handle unlocking signal of the vehicle under test. Upon receiving an impact signal, the vehicle under test will trigger the unlocking operation of its door handles to enable escape in emergency situations. By collecting the door handle unlocking signal of the vehicle under test, it can be determined whether the vehicle under test has initiated the unlocking operation.

[0027] Step 220: Calculate the low-voltage power-off delay time of the vehicle under test.

[0028] Since the test vehicle will reserve a certain delay when responding to the impact signal to realize emergency operations such as unlocking the door handle, the low-voltage power failure delay time of the test vehicle is calculated to execute the low-voltage power failure operation more accurately, thereby simulating the low-voltage power failure condition during the collision process more realistically.

[0029] Step 230: Based on the low-voltage power-off delay time, in response to the impact signal, control the power-off equipment to disconnect the low-voltage power supply of the vehicle under test.

[0030] After determining the low-voltage power outage delay time, the power outage equipment is controlled to disconnect the low-voltage power supply of the vehicle under test according to the low-voltage power outage delay time, so as to simulate the low-voltage power outage condition during the collision process.

[0031] Step 240: Obtain the unlock status of the door handles of the vehicle under test.

[0032] The system continuously collects the status information of the door handle of the vehicle under test when the impact signal is generated, in order to determine its unlocking status when the low voltage power is cut off, that is, to determine whether the door handle has been unlocked when the low voltage power is cut off.

[0033] Step 250: Based on the door handle unlocking status and response signal of the vehicle under test, determine the door handle power-off unlocking test result of the vehicle under test.

[0034] Based on the unlocking status and response signal of the door handle of the vehicle under test, the power-off unlocking test result of the door handle of the vehicle under test is determined. By combining whether the door handle is successfully unlocked and the response signal during the unlocking process, the power-off unlocking test of the door handle of the vehicle under test is conducted comprehensively and accurately.

[0035] This application provides a test method for power-off unlocking of vehicle door handles. In response to an impact signal generated by an impact signal generation device, the method acquires a response signal from the vehicle under test. The response signal includes the door handle unlocking signal of the vehicle under test. The method calculates the low-voltage power-off delay time of the vehicle under test. Based on the low-voltage power-off delay time, in response to the impact signal, the method controls a power-off device to disconnect the low-voltage power supply to the vehicle under test. The method obtains the unlocking state of the door handle of the vehicle under test. Based on the unlocking state of the door handle and the response signal, the method determines the power-off unlocking test result of the door handle. The method generates an impact signal using an impact signal generation device to replace a real collision experiment, reducing experimental losses. Furthermore, the method uses a power-off device to quickly disconnect the low-voltage power supply to the vehicle under test, achieving millisecond-level power-off operation, thereby improving test accuracy. Simultaneously, the method accurately calculates the low-voltage power-off delay time of the test vehicle, further improving test accuracy.

[0036] In one embodiment, the vehicle under test includes at least one low-voltage power supply; wherein, the specific implementation of step 220 above may be: calculating the power-off delay duration of all low-voltage power supplies of the vehicle under test; calculating the time difference of the low-voltage power-off triggered by the impact signal; and determining the low-voltage power supply delay duration of the vehicle under test based on the power-off delay duration and time difference of all low-voltage power supplies of the vehicle under test.

[0037] The low-voltage power supply delay duration of the vehicle under test is determined by calculating the power-off delay times of all low-voltage power supplies, the time difference between the generation of the impact signal and the triggering of the low-voltage power-off of the vehicle under test, and combining these calculations with the power-off delay times and time differences of all low-voltage power supplies. Specifically, the low-voltage power supply delay duration of the vehicle under test is equal to the sum of the power-off delay times of all low-voltage power supplies minus the time difference between the generation of the impact signal and the triggering of the low-voltage power-off of the vehicle under test.

[0038] In one embodiment, step 220 can be implemented as follows: based on the signal curve of the impact signal, the cumulative impact energy corresponding to the impact signal is calculated by integration; the triggering time corresponding to the cumulative impact energy reaching a preset energy threshold is calculated; and the time difference is calculated based on the triggering time and the generation time of the impact signal.

[0039] This application acquires the signal curve of the impact signal in real time, obtains the cumulative impact energy by integrating the impact current of the signal curve, and records the time (i.e. the trigger time) when the cumulative impact energy reaches the preset energy threshold (i.e. the level of low voltage power failure). The time difference between the generation time and the trigger time of the impact signal is determined, that is, the time required for the impact energy to reach the level of low voltage power failure is determined.

[0040] In one embodiment, the power-off device includes a relay connected in series with the low-voltage power supply of the vehicle under test; wherein, the specific implementation of step 230 above may be: responding to an impact signal and controlling the relay to disconnect after a low-voltage power-off delay period to disconnect the low-voltage power supply of the vehicle under test.

[0041] Upon receiving an impact signal, this application controls a relay to disconnect after a low-voltage power-off delay period, thereby disconnecting the low-voltage power supply to the vehicle under test. Preferably, after disconnecting the low-voltage power supply to the vehicle under test, this application further detects the low-voltage power supply circuit of the vehicle under test, for example, by connecting a light-emitting diode (LED) to the low-voltage power supply circuit of the vehicle under test. If the LED is off, it is determined that the low-voltage power supply circuit is disconnected.

[0042] In one embodiment, step 240 can be implemented by: obtaining the duration of the door handle unlocking signal of the vehicle under test; and determining the door handle unlocking status of the vehicle under test based on the duration of the door handle unlocking signal of the vehicle under test.

[0043] This application obtains the door handle unlocking signal (signal curve in the time dimension) of the vehicle under test and determines the unlocking status of the door handle based on the duration of the unlocking signal. Specifically, if the duration of the door handle unlocking signal is longer than the action execution time required for unlocking the door handle, the door handle unlocking action of the vehicle under test is considered to be completed, and the unlocking status of the door handle is determined to be unlocked. If the duration of the door handle unlocking signal is shorter than the action execution time required for unlocking the door handle, the lock structure may also unlock under inertia, so further judgment of the unlocking status of the door handle is required. Preferably, this application can set up a robot or robotic arm linked with a power-off device. When the duration of the door handle unlocking signal is shorter than the action execution time required for unlocking the door handle, the robot or robotic arm is controlled to open the door through the door handle (this action can also be performed when the duration of the door handle unlocking signal is longer than the action execution time required for unlocking the door handle to verify the unlocking status). If the door can be opened, the unlocking status of the door handle of the vehicle under test is determined to be unlocked; otherwise, it is determined to be incomplete. Preferably, this application can use an image acquisition device (camera, etc.) to capture images of the car door during the operation of the robot or robotic arm, and determine whether the unlocking is complete based on the difference between the car door images before and after the operation. Specifically, by comparing the position pixel changes of the car door handle before and after the operation, if the position pixel change exceeds a preset value, it is determined that the car door is opened, and at this time, the unlocking status of the car door handle of the vehicle under test is determined to be unlocked.

[0044] In one embodiment, the specific implementation of step 250 above may be as follows: if the door handle of the vehicle under test is in the unlocking state, then the door handle unlocking completion time and response signal generation time of the vehicle under test are used to determine the door handle power-off unlocking test result of the vehicle under test.

[0045] If the door handle of the vehicle under test is in the unlocked state, it can be determined that the vehicle under test can achieve the door handle unlocking function under the condition of low-voltage power failure. In order to further test the door handle power failure unlocking function of the vehicle under test, this application further determines the door handle power failure unlocking efficiency of the vehicle under test based on the door handle unlocking completion time and the generation time of the response signal.

[0046] In one embodiment, step 250 can be implemented as follows: if the time difference between the door handle unlocking completion time and the response signal generation time of the vehicle under test is less than a preset time threshold, then the door handle power-off unlocking test result of the vehicle under test is determined to be passed.

[0047] This application calculates the time difference between the door handle unlocking completion time and the response signal generation time of the vehicle under test. If the time difference is less than a preset time threshold, it indicates that the vehicle under test can quickly unlock the door handle under collision conditions, thereby ensuring its safety under collision conditions.

[0048] Preferably, this application can also judge the door handle unlocking signal. If the door handle unlocking signal is continuously greater than a preset signal threshold after the impact signal is generated, it indicates that the door handle is stably unlocked during the collision. If the door handle unlocking signal fluctuates greatly after the impact signal is generated, it indicates that the door handle is unstable during the collision.

[0049] Figure 3 This is a schematic diagram of a test device for power-off unlocking of a vehicle door handle provided in an exemplary embodiment of this application. The test device for power-off unlocking of a vehicle door handle is installed in the aforementioned test system for power-off unlocking of a vehicle door handle, such as... Figure 3As shown, the vehicle door handle power-off unlocking test device 30 includes: a response signal acquisition module 31, used to acquire the response signal of the vehicle under test in response to the impact signal of the impact signal generating device; wherein the response signal includes the door handle unlocking signal of the vehicle under test; a delay duration calculation module 32, used to calculate the low-voltage power-off delay duration of the vehicle under test; a low-voltage power-off module 33, used to control the power-off device to disconnect the low-voltage power supply of the vehicle under test based on the low-voltage power-off delay duration and in response to the impact signal; an unlocking status acquisition module 34, used to acquire the door handle unlocking status of the vehicle under test; and a test result determination module 35, used to determine the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking status and response signal of the vehicle under test.

[0050] This application provides a test device for power-off unlocking of vehicle door handles. The device uses a response signal acquisition module 31 to acquire the response signal of the vehicle under test in response to an impact signal generated by an impact signal generation device. The response signal includes the door handle unlocking signal of the vehicle under test. A delay duration calculation module 32 calculates the low-voltage power-off delay duration of the vehicle under test. A low-voltage power-off module 33, based on the low-voltage power-off delay duration and in response to the impact signal, controls a power-off device to disconnect the low-voltage power supply of the vehicle under test. An unlocking status acquisition module 34 acquires the unlocking status of the door handle of the vehicle under test. A test result determination module 35 determines the power-off unlocking test result of the door handle of the vehicle under test based on the unlocking status and response signal of the door handle. The impact signal generation device generates an impact signal to replace a real collision experiment, reducing experimental losses. Furthermore, the power-off device rapidly cuts off the low-voltage power supply of the vehicle under test to achieve millisecond-level power-off operation, thereby improving test accuracy. Simultaneously, the accurate calculation of the low-voltage power-off delay duration of the test vehicle further enhances test precision.

[0051] In one embodiment, the vehicle under test includes at least one low-voltage power supply; wherein, the aforementioned delay duration calculation module 32 may be further configured to: calculate the power-off delay duration of all low-voltage power supplies of the vehicle under test; calculate the time difference between the triggering of the impact signal to cause the low-voltage power-off of the vehicle under test; and determine the low-voltage power supply delay duration of the vehicle under test based on the power-off delay duration and time difference of all low-voltage power supplies of the vehicle under test.

[0052] In one embodiment, the delay duration calculation module 32 can be further configured to: calculate the cumulative impact energy corresponding to the impact signal by integration based on the signal curve of the impact signal; calculate the trigger time corresponding to the cumulative impact energy reaching a preset energy threshold; and calculate the time difference based on the trigger time and the generation time of the impact signal.

[0053] In one embodiment, the power-off device includes a relay connected in series with the low-voltage power supply of the vehicle under test; wherein the low-voltage power-off module 33 may be further configured to: respond to an impact signal and control the relay to disconnect after a low-voltage power-off delay period to disconnect the low-voltage power supply of the vehicle under test.

[0054] In one embodiment, the unlocking status acquisition module 34 may be further configured to: acquire the duration of the door handle unlocking signal of the vehicle under test; and determine the door handle unlocking status of the vehicle under test based on the duration of the door handle unlocking signal of the vehicle under test.

[0055] In one embodiment, the test result determination module 35 can be further configured to: if the door handle of the vehicle under test is in the unlocking state of unlocking complete, then determine the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking completion time and the generation time of the response signal.

[0056] In one embodiment, the test result determination module 35 can be further configured to: if the time difference between the door handle unlocking completion time and the response signal generation time of the vehicle under test is less than a preset time threshold, then the door handle power-off unlocking test result of the vehicle under test is determined to be passed.

[0057] Below, for reference Figure 4 This application describes an electronic device according to embodiments thereof. The electronic device may be either or both of a first device and a second device, or a standalone device independent of them, which may communicate with the first device and the second device to receive acquired input signals from them.

[0058] Figure 4 A block diagram of an electronic device according to an embodiment of this application is illustrated.

[0059] like Figure 4 As shown, the electronic device 10 includes one or more processors 11 and memory 12.

[0060] The processor 11 may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.

[0061] The memory 12 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 11 may execute the program instructions to implement the methods of the various embodiments of this application described above and / or other desired functions. Various contents such as input signals, signal components, and noise components may also be stored in the computer-readable storage medium.

[0062] In one example, the electronic device 10 may also include an input device 13 and an output device 14, which are interconnected via a bus system and / or other forms of connection mechanism (not shown).

[0063] When the electronic device is a standalone device, the input device 13 can be a communication network connector for receiving the collected input signals from the first device and the second device.

[0064] In addition, the input device 13 may also include, for example, a keyboard, a mouse, etc.

[0065] The output device 14 can output various information to the outside, including determined distance information, direction information, etc. The output device 14 may include, for example, a display, a speaker, a printer, and a communication network and its connected remote output devices, etc.

[0066] Of course, for the sake of simplicity, Figure 4 Only some of the components of the electronic device 10 relevant to this application are shown in this illustration; components such as buses, input / output interfaces, etc., are omitted. In addition, the electronic device 10 may include any other suitable components depending on the specific application.

[0067] In addition to the methods and apparatus described above, embodiments of this application may also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the steps in the methods according to various embodiments of this application described in the "Exemplary Methods" section above.

[0068] The computer program product can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this application. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0069] Furthermore, embodiments of this application may also be computer-readable storage media storing computer program instructions thereon, which, when executed by a processor, cause the processor to perform the steps in the methods according to various embodiments of this application described in the "Exemplary Methods" section above.

[0070] The computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0071] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0072] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0073] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0074] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0075] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A test method for unlocking a vehicle door handle when power is off, characterized in that, A test system for unlocking vehicle door handles by power failure, comprising a vehicle under test, an impact signal generation device, and a power failure device connected to each other. The test method for unlocking the vehicle door handle when the power is off includes: In response to the impact signal from the impact signal generating device, the response signal of the vehicle under test is acquired; wherein, the response signal includes the door handle unlocking signal of the vehicle under test; Calculate the low-voltage power-off delay time of the vehicle under test; Based on the low-voltage power-off delay time, in response to the impact signal, the power-off device is controlled to disconnect the low-voltage power supply of the vehicle under test; Obtain the unlock status of the door handle of the vehicle under test; Based on the door handle unlocking status of the vehicle under test and the response signal, the power-off unlocking test result of the door handle of the vehicle under test is determined.

2. The test method for unlocking a vehicle door handle by power failure according to claim 1, characterized in that, The vehicle under test includes at least one low-voltage power supply; wherein, calculating the low-voltage power supply delay duration of the vehicle under test includes: Calculate the power outage delay time of all low-voltage power supplies of the vehicle under test; Calculate the time difference between the impact signal triggering the low-voltage power outage of the vehicle under test; The low-voltage power supply delay duration of the vehicle under test is determined based on the power outage delay duration of all low-voltage power supplies of the vehicle under test and the time difference.

3. The test method for unlocking a vehicle door handle by power failure according to claim 2, characterized in that, The calculation of the time difference during which the impact signal triggers a low-voltage power outage in the vehicle under test includes: Based on the signal curve of the impact signal, the cumulative impact energy corresponding to the impact signal is calculated by integration. Calculate the trigger time corresponding to the cumulative impact energy reaching the preset energy threshold; The time difference is calculated based on the triggering time and the generation time of the impact signal.

4. The test method for unlocking a vehicle door handle by power failure according to claim 1, characterized in that, The power-off device includes a relay connected in series with the low-voltage power supply of the vehicle under test; wherein, controlling the power-off device to disconnect the low-voltage power supply of the vehicle under test in response to the impact signal, based on the low-voltage power-off delay time, includes: In response to the impact signal, and after the low-voltage power-off delay period, the relay is controlled to disconnect, thereby disconnecting the low-voltage power supply to the vehicle under test.

5. The test method for unlocking a vehicle door handle by power failure according to claim 1, characterized in that, The process of obtaining the door handle unlock status of the vehicle under test includes: Obtain the duration of the door handle unlock signal of the vehicle under test; The door handle unlocking status of the vehicle under test is determined based on the duration of the door handle unlocking signal of the vehicle under test.

6. The test method for unlocking a vehicle door handle by power failure according to claim 1, characterized in that, The determination of the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking status of the vehicle under test and the response signal includes: If the door handle of the vehicle under test is in the unlocked state, the door handle unlocking completion time and the generation time of the response signal are used to determine the door handle power-off unlocking test result of the vehicle under test.

7. The test method for unlocking a vehicle door handle by power failure according to claim 6, characterized in that, The determination of the door handle power-off unlocking test result of the vehicle under test based on the door handle unlocking completion time and the response signal generation time includes: If the time difference between the door handle unlocking completion time of the test vehicle and the generation time of the response signal is less than a preset time threshold, then the door handle power-off unlocking test result of the test vehicle is determined to be passed.

8. A testing device for unlocking a vehicle door handle when powered off, characterized in that, The test system for unlocking vehicle door handles by power failure includes a vehicle under test, an impact signal generation device, and a power failure device that are connected to each other. The test device for unlocking the vehicle door handle when power is off includes: The response signal acquisition module is used to acquire the response signal of the vehicle under test in response to the impact signal generated by the impact signal generating device; wherein, the response signal includes the door handle unlocking signal of the vehicle under test; The delay duration calculation module is used to calculate the low-voltage power-off delay duration of the vehicle under test; A low-voltage power-off module is used to control the power-off device to disconnect the low-voltage power supply of the vehicle under test in response to the impact signal, based on the low-voltage power-off delay time. The unlock status acquisition module is used to acquire the unlock status of the door handle of the vehicle under test; The test result determination module is used to determine the power-off unlocking test result of the door handle of the vehicle under test based on the unlocking status of the door handle and the response signal.

9. A computer-readable storage medium, characterized in that, The storage medium stores a computer program for performing the method described in any one of claims 1-7.

10. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is used to execute the method described in any one of claims 1-7.

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