Vehicle Rear Collision Prevention Test Method, Device, Equipment and Readable Storage Medium

Abstract

The present invention provides a method, device, equipment and readable storage medium for rear collision prevention test of a vehicle. The method for rear collision prevention test of a vehicle includes: controlling a simulated vehicle to travel to an initial position on a test track, wherein the simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a latch; controlling the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed; detecting whether a deceleration condition is satisfied, and if so, controlling the base to decelerate and controlling the latch between the base and the mold to open, so that the mold is separated from the base. By controlling the base to decelerate and controlling the latch between the base and the mold to open, the present invention separates the mold from the base, avoids collision between the simulated vehicle and the test vehicle, reduces damage to the simulated vehicle and the test vehicle, and a rear collision warning system is installed on the test vehicle. Through the present invention, a rear collision prevention test of the vehicle with low cost and low risk is realized.

Description

Technical Field

[0001] The present invention relates to the field of vehicle rear collision prevention tests, and particularly to a vehicle rear collision prevention test method, device, equipment and readable storage medium. Background Technique

[0002] During the driving process of a vehicle, it is necessary to observe not only the motion state of the traffic participants in front but also the motion state of the traffic participants behind to avoid rear-end collisions. The application requirements in high-speed scenarios are particularly significant. To solve the above problems, the Rear Collision Warning (RCW) function was born. RCW monitors the targets behind the vehicle in real time through the rear radars of the vehicle. When it detects that a vehicle is approaching the vehicle quickly and there is a risk of being rear-ended, it sends an alarm message to remind the following vehicle to decelerate or maintain a safe distance, and lights up the hazard warning light. And the rear collision prevention test is a test and verification of the implementation effect of the RCW function.

[0003] Currently, the tests for the rear collision warning function mainly include two schemes: using real vehicles for testing and using simulated vehicles for testing. Using real vehicles for testing has a high risk, requires high requirements for the driver to control the vehicle, and has a high repair cost after a collision. When using simulated vehicles for testing, currently, it mainly uses a mobile platform to carry a target object to simulate a vehicle for testing. Due to the high cost of the mobile platform, when using a simulated vehicle for high-speed testing, if a collision occurs, the wear on the mobile platform is large, resulting in a high cost for a single test. Summary of the Invention

[0004] The main purpose of the present invention is to provide a vehicle rear collision prevention test method, device, equipment and readable storage medium, aiming to solve the technical problems of high risk in real vehicle testing and high cost in simulated vehicle testing in the existing vehicle rear collision prevention test solutions.

[0005] In a first aspect, the present invention provides a vehicle rear collision prevention test method, and the vehicle rear collision prevention test method includes:

[0006] Controlling the simulated vehicle to drive to the initial position on the test track, wherein the simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a buckle;

[0007] Controlling the simulated vehicle to drive towards the test vehicle according to a preset trajectory and a preset speed;

[0008] Detecting whether the deceleration condition is met. If so, controlling the base to decelerate and controlling the buckle between the base and the mold to open, so that the mold is separated from the base.

[0009] Optionally, the test track is composed of small sections of tracks with different lengths and different curvatures. The small sections of tracks are connected by a locking structure, and the small sections of tracks are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

[0010] Optionally, the test track has a protruding part. An iron plate is provided on the upper part of the test track. The iron plate has holes, and the iron plate and the test track are connected through the protruding part and the holes.

[0011] Optionally, the deceleration conditions include one or more of the following:

[0012] The distance between the test vehicle and the simulated vehicle is less than a preset distance;

[0013] The collision time between the test vehicle and the simulated vehicle is less than a preset collision time;

[0014] The speed of the simulated vehicle is greater than a preset maximum speed;

[0015] The acceleration of the simulated vehicle is greater than a preset acceleration;

[0016] The distance between the simulated vehicle and the boundary of the test track is less than a preset boundary distance.

[0017] Optionally, controlling the deceleration of the base includes:

[0018] Controlling the deceleration of the base by reducing the motor voltage.

[0019] In a second aspect, the present invention further provides a vehicle rear anti-collision test device, which includes:

[0020] A first control module, configured to control the simulated vehicle to travel to an initial position on the test track. The simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a buckle;

[0021] A second control module, configured to control the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed;

[0022] A detection module, configured to detect whether the deceleration conditions are met. If so, control the base to decelerate, and control the buckle between the base and the mold to open, so that the mold and the base are separated.

[0023] Optionally, the first control module is configured to:

[0024] The test track is composed of small sections of tracks with different lengths and different curvatures. The small sections of tracks are connected by a locking structure, and the small sections of tracks are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

[0025] Optionally, the detection module is configured to:

[0026] Control the base to decelerate by reducing the motor voltage.

[0027] In a third aspect, the present invention further provides a vehicle rear collision prevention test device, which includes a processor, a memory, and a vehicle rear collision prevention test program stored on the memory and executable by the processor. When the vehicle rear collision prevention test program is executed by the processor, the steps of the vehicle rear collision prevention test method as described above are implemented.

[0028] In a fourth aspect, the present invention further provides a readable storage medium, on which a vehicle rear collision prevention test program is stored. When the vehicle rear collision prevention test program is executed by a processor, the steps of the vehicle rear collision prevention test method as described above are implemented.

[0029] In the present invention, the simulated vehicle is controlled to travel to the initial position on the test track. The simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a buckle; the simulated vehicle is controlled to travel towards the test vehicle according to a preset trajectory and a preset speed; it is detected whether the deceleration condition is met. If so, the base is controlled to decelerate, and the buckle between the base and the mold is controlled to open, so that the mold and the base are separated. Through the present invention, first, the simulated vehicle is controlled to travel to the initial position on the test track, and then the simulated vehicle is controlled to travel towards the test vehicle according to a preset trajectory and a preset speed to perform a vehicle rear collision prevention test. The simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a buckle. During the test, it is detected whether the deceleration condition is met. If it is met, the base is controlled to decelerate, and the buckle between the base and the mold is controlled to open, so that the mold and the base are separated, avoiding the collision between the simulated vehicle and the test vehicle and reducing the damage to the simulated vehicle and the test vehicle. Even if a collision occurs, through the separable design between the mold and the base, the damage can be reduced as much as possible. The test vehicle is equipped with a post-collision warning system. When the post-collision warning system issues a warning, the distance between the test vehicle and the simulated vehicle is obtained, so as to evaluate the performance of the post-collision warning system of the test vehicle. Through the present invention, a low-cost and low-risk vehicle rear collision prevention test is realized. Description of the Drawings

[0030] Figure 1 It is a schematic hardware structure diagram of an embodiment of the vehicle rear collision prevention test device of the present invention;

[0031] Figure 2 It is a schematic flowchart of an embodiment of the vehicle rear collision prevention test method of the present invention;

[0032] Figure 3Schematic diagram of a test track structure according to an embodiment of the method for testing rear collision prevention of a vehicle of the present invention;

[0033] Figure 4 is Figure 2 Schematic diagram of deceleration conditions in step S30 in;

[0034] Figure 5 Schematic diagram of functional modules according to an embodiment of the rear collision prevention test device for a vehicle of the present invention.

[0035] The realization, functional characteristics, and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0036] 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.

[0037] In a first aspect, an embodiment of the present invention provides a rear collision prevention test device for a vehicle.

[0038] Referring to Figure 1 , Figure 1 is a schematic hardware structure diagram of an embodiment of the rear collision prevention test device for a vehicle of the present invention. In the embodiment of the present invention, the rear collision prevention test device for a vehicle may include a processor 1001 (such as a central processing unit, 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 realize the connection and communication between these components; the user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WI-FI) interface); the memory 1005 may be a high-speed random access memory (RAM) or a stable memory (non-volatile memory), such as a disk memory, and the memory 1005 may optionally be a storage device independent of the aforementioned processor 1001. Those skilled in the art can understand that Figure 1 the hardware structure shown in does not constitute a limitation to the present invention, and may include more or fewer components than shown, or combine some components, or have different component arrangements.

[0039] Continuing to refer to Figure 1 , Figure 1In the memory 1005 as a computer storage medium, an operating system, a network communication module, a user interface module, and a vehicle rear collision prevention test program may be included. Among them, the processor 1001 may call the vehicle rear collision prevention test program stored in the memory 1005 and execute the vehicle rear collision prevention test method provided by the embodiments of the present invention.

[0040] In a second aspect, embodiments of the present invention provide a vehicle rear collision prevention test method.

[0041] To more clearly show the vehicle rear collision prevention test method provided by the embodiments of the present application, first, the application scenario of the vehicle rear collision prevention test method provided by the embodiments of the present application is introduced.

[0042] The vehicle rear collision prevention test method provided by the embodiments of the present application is applied to perform performance tests on the rear collision prevention system of a vehicle to ensure better driving safety of the vehicle.

[0043] In one embodiment, refer to Figure 2 , Figure 2 is a schematic flowchart of one embodiment of the vehicle rear collision prevention test method of the present invention. As Figure 2 shown, the vehicle rear collision prevention test method includes:

[0044] Step S10, control the simulated vehicle to drive to the initial position on the test track. Among them, the simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a buckle.

[0045] In this embodiment, the simulated vehicle is used to simulate a real vehicle. The simulated vehicle is composed of a base and a mold. Among them, the base includes wheels, and the wheels are driven by a motor to rotate, so as to simulate the driving of the vehicle. The size and shape of the mold refer to those of a common passenger car and need to be able to be perceived as a vehicle target by the camera sensor of the intelligent connected vehicle. The front skin of the mold is covered so that the radar cross-sectional area of its surface can be perceived as a vehicle target by the millimeter-wave radar used by the intelligent connected vehicle. The mold can be made of foam material to reduce collision damage. The base and the mold are connected by a buckle, so that the base and the mold can be fixed or separated. The buckle switch can be controlled by a digital signal or a mechanical button switch to control the simulated vehicle to drive to the initial position on the test track to prepare for the vehicle rear collision prevention test.

[0046] Step S20, control the simulated vehicle to drive towards the test vehicle according to a preset trajectory and a preset speed.

[0047] In this embodiment, controlling the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed is actually achieved by driving the wheels of the base with a motor, and the simulated vehicle travels towards the test vehicle. The test vehicle is a real vehicle equipped with the performance of a rear collision avoidance system to be tested. A vehicle rear collision avoidance system is installed on the test vehicle, so that collision warnings can be given and the performance of the vehicle rear collision avoidance system can be tested. The preset trajectory and the preset speed can be specifically set according to test requirements to simulate situations such as rear-end collisions or reverse driving in a real scenario. Among them, the speed of the simulated vehicle can be controlled by the motor to make the simulated vehicle achieve different driving conditions such as acceleration, constant speed, and deceleration at different times.

[0048] Step S30: Detect whether the deceleration condition is satisfied. If so, control the base to decelerate and control the latch between the base and the mold to open, so that the mold and the base are separated.

[0049] In this embodiment, it is detected in real time whether the deceleration condition is satisfied. If the deceleration condition is satisfied, the base is controlled to decelerate and the latch between the base and the mold is controlled to open, so that the mold and the base are separated, thereby avoiding collisions and reducing the damage to the test vehicle and the simulated vehicle after a collision occurs.

[0050] In this embodiment, the test vehicle is a real vehicle equipped with the performance of a rear collision avoidance system to be tested. The simulated vehicle simulates a real vehicle through a mold skin, etc. First, the simulated vehicle is controlled to travel to the initial position on the test track, and then the simulated vehicle is controlled to travel towards the test vehicle according to a preset trajectory and a preset speed to simulate real scenarios such as reverse driving or rear-end collisions for vehicle rear collision avoidance testing. Among them, the simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a latch. During the test, it is detected whether the deceleration condition is satisfied. If so, the base is controlled to decelerate and the latch between the base and the mold is controlled to open, so that the mold and the base are separated, avoiding collisions between the simulated vehicle and the test vehicle and reducing the damage to the simulated vehicle and the test vehicle. Even if a collision occurs, the design of separating the mold and the base can also minimize the damage as much as possible. A rear collision warning system is installed on the test vehicle. When the rear collision warning system issues a warning, the distance between the test vehicle and the simulated vehicle is obtained, so as to evaluate the performance of the rear collision warning system of the test vehicle, thereby realizing low-cost and low-risk vehicle rear collision avoidance testing.

[0051] Further, in one embodiment, step S10 includes:

[0052] The test track is composed of small segments of tracks with different lengths and different curvatures. The small segments of tracks are connected by a lock-type structure, and the small segments of tracks are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

[0053] In this embodiment, the test track is composed of small sections of tracks with different lengths and curvatures. The small sections of tracks are connected by a lock-type structure and are movable, facilitating assembly and disassembly, and simulating various road conditions during vehicle driving. Refer to Figure 3 , Figure 3 which is a schematic diagram of the test track structure of an embodiment of the vehicle rear anti-collision test method of the present invention. As shown in Figure 3 , the test track is composed of multiple sections. The groove part is the running groove, and the wheels of the base are embedded in the running grooves on both sides of the test track, thus preventing the random movement of the base. The upper part of the base simulates a real vehicle through a mold to simulate the driving trajectory of the vehicle.

[0054] Furthermore, in one embodiment, step S10 includes:

[0055] The test track has a protruding part. An iron plate is arranged on the upper part of the test track. The iron plate has holes, and the iron plate and the test track are connected through the protruding part and the holes.

[0056] In this embodiment, continue to refer to Figure 3 , as shown in Figure 3 , the test track has a protruding part. An iron plate is installed on the upper part of the test track. The iron plate has holes, and the iron plate and the test track are fixedly connected through the protruding part and the holes, that is, the protruding part of the test track passes through the holes of the iron plate to increase the weight of the test track and fix it to prevent the test track from moving to ensure the test.

[0057] Furthermore, in one embodiment, refer to Figure 4 , Figure 4 which is a schematic diagram of the deceleration conditions of step S30 in Figure 2 . As shown in Figure 4 , step S30 includes:

[0058] The deceleration conditions include one or more of the following:

[0059] The distance between the test vehicle and the simulated vehicle is less than a preset distance;

[0060] The collision time between the test vehicle and the simulated vehicle is less than a preset collision time;

[0061] The speed of the simulated vehicle is greater than a preset maximum speed;

[0062] The acceleration of the simulated vehicle is greater than a preset acceleration;

[0063] The distance between the simulated vehicle and the boundary of the test track is less than a preset boundary distance.

[0064] In this embodiment, when one or more deceleration conditions are met, the control base decelerates, and the latch between the base and the mold is controlled to open, separating the mold from the base, preventing the test vehicle and the simulated vehicle from colliding, and reducing the damage to the test vehicle and the simulated vehicle. The preset distance, preset collision time, preset maximum speed, preset acceleration, and preset boundary distance can all be set before the test according to specific test scenarios and requirements. Among them, the distance between the simulated vehicle and the boundary of the test track is less than the preset boundary distance to prevent the simulated vehicle from hitting the baffle on the boundary of the test track and causing damage to the simulated vehicle and the baffle. The control system has a protection mechanism. When the user conducts a test and the input speed or acceleration of the simulated vehicle is too high, exceeding the set preset maximum speed and preset acceleration, the control can not execute the input to avoid causing major damage.

[0065] Further, in one embodiment, step S30 includes:

[0066] The base is decelerated by reducing the motor voltage.

[0067] In this embodiment, the base has wheels and drives the wheels to rotate by controlling the motor voltage to simulate the driving of a real vehicle. Therefore, correspondingly, the base is decelerated by reducing the motor voltage.

[0068] In a third aspect, an embodiment of the present invention further provides a vehicle rear anti-collision test device.

[0069] Referring to Figure 5 , Figure 5 is a schematic diagram of the functional modules of an embodiment of the vehicle rear anti-collision test device of the present invention.

[0070] In this embodiment, the vehicle rear anti-collision test device includes:

[0071] A first control module 10, configured to control the simulated vehicle to travel to the initial position on the test track. Among them, the simulated vehicle is composed of a base and a mold, and the base and the mold are connected by a latch;

[0072] A second control module 20, configured to control the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed;

[0073] A detection module 30, configured to detect whether a deceleration condition is met. If so, the base is decelerated, and the latch between the base and the mold is controlled to open, separating the mold from the base.

[0074] Further, in one embodiment, the first control module 10 is configured to:

[0075] The test track is composed of small sections of tracks with different lengths and curvatures. The small sections of tracks are connected by a lock-type structure, and the small sections of tracks are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

[0076] Further, in one embodiment, the first control module 10 is configured to:

[0077] The test track has a protruding part. An iron plate is provided on the upper part of the test track. The iron plate has holes, and the iron plate and the test track are connected through the protruding part and the holes.

[0078] Further, in one embodiment, the detection module 30 is configured to:

[0079] The deceleration conditions include one or more of the following:

[0080] The distance between the test vehicle and the simulated vehicle is less than a preset distance;

[0081] The collision time between the test vehicle and the simulated vehicle is less than a preset collision time;

[0082] The speed of the simulated vehicle is greater than a preset maximum speed;

[0083] The acceleration of the simulated vehicle is greater than a preset acceleration;

[0084] The distance between the simulated vehicle and the boundary of the test track is less than a preset boundary distance.

[0085] Further, in one embodiment, the detection module 30 is configured to:

[0086] Control the deceleration of the base by reducing the motor voltage.

[0087] Among them, the function realization of each module in the above vehicle rear collision prevention test device corresponds to each step in the above vehicle rear collision prevention test method embodiment, and its function and implementation process will not be elaborated here one by one.

[0088] Fourthly, an embodiment of the present invention further provides a readable storage medium.

[0089] A vehicle rear collision prevention test program is stored on the readable storage medium of the present invention. When the vehicle rear collision prevention test program is executed by a processor, the steps of the vehicle rear collision prevention test method as described above are implemented.

[0090] Among them, the method implemented when the vehicle rear collision prevention test program is executed can refer to each embodiment of the vehicle rear collision prevention test method of the present invention, and will not be elaborated here.

[0091] It should be noted that in this document, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or system comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or system. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or system comprising that element.

[0092] The serial numbers of the embodiments of the present invention above are only for description and do not represent the superiority or inferiority of the embodiments.

[0093] From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to enable a terminal device to execute the methods described in the various embodiments of the present invention.

[0094] 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 description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A vehicle rear anti-collision test method, characterized in that, The vehicle rear anti-collision test method includes: Controlling the simulated vehicle to travel to the initial position on the test track. The simulated vehicle consists of a base and a mold, and the base and the mold are connected by a latch; Controlling the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed; Detecting whether the deceleration condition is met. If so, controlling the base to decelerate and controlling the latch between the base and the mold to open, so that the mold and the base are separated; The deceleration condition includes one or more of the following: The distance between the test vehicle and the simulated vehicle is less than the preset distance; The collision time between the test vehicle and the simulated vehicle is less than the preset collision time; The speed of the simulated vehicle is greater than the preset maximum speed; The acceleration of the simulated vehicle is greater than the preset acceleration; The distance between the simulated vehicle and the boundary of the test track is less than the preset boundary distance.

2. The vehicle rear collision prevention test method according to claim 1, characterized in that, The test track consists of small segments of different lengths and different curvatures. The small segments are connected by a lock-type structure, and the small segments are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

3. The vehicle rear collision prevention test method according to claim 1, characterized in that, The test track has a protruding part. An iron plate is provided on the upper part of the test track. The iron plate has holes, and the iron plate and the test track are connected through the protruding part and the holes.

4. The vehicle rear collision prevention test method according to claim 1, wherein Controlling the base to decelerate includes: Controlling the base to decelerate by reducing the motor voltage.

5. A vehicle rear anti-collision test device, characterized in that, The vehicle rear anti-collision test device includes: A first control module for controlling the simulated vehicle to travel to the initial position on the test track. The simulated vehicle consists of a base and a mold, and the base and the mold are connected by a latch; A second control module for controlling the simulated vehicle to travel towards the test vehicle according to a preset trajectory and a preset speed; A detection module for detecting whether the deceleration condition is met. If so, controlling the base to decelerate and controlling the latch between the base and the mold to open, so that the mold and the base are separated; The deceleration condition includes one or more of the following: The distance between the test vehicle and the simulated vehicle is less than the preset distance; The collision time between the test vehicle and the simulated vehicle is less than the preset collision time; The speed of the simulated vehicle is greater than the preset maximum speed; The acceleration of the simulated vehicle is greater than the preset acceleration; The distance between the simulated vehicle and the boundary of the test track is less than the preset boundary distance.

6. The vehicle rear anti-collision test device according to claim 5, wherein, The first control module is used for: The test track consists of small segments of different lengths and different curvatures. The small segments are connected by a lock-type structure, and the small segments are detachable. The test track includes a running groove, and the base is embedded in the test track through the running groove.

7. The vehicle rear anti-collision test device according to claim 5, characterized in that, The detection module is used for: Controlling the base to decelerate by reducing the motor voltage.

8. A vehicle rear anti-collision test device, characterized in that, The vehicle rear anti-collision test equipment includes a processor, a memory, and a vehicle rear anti-collision test program stored on the memory and executable by the processor. When the vehicle rear anti-collision test program is executed by the processor, the steps of the vehicle rear anti-collision test method according to any one of claims 1 to 4 are implemented.

9. A readable storage medium, characterized in that, A vehicle rear collision prevention test program is stored on the readable storage medium, and when the vehicle rear collision prevention test program is executed by a processor, the steps of the vehicle rear collision prevention test method according to any one of claims 1 to 4 are implemented.

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