False vehicle testing and automatic emergency braking testing system

Abstract

The utility model provides a test false vehicle and an automatic emergency brake test system. The test false vehicle comprises a brake signal receiver arranged in the test false vehicle, a second controller arranged in the test false vehicle and electrically connected with the brake signal receiver, and a brake lamp arranged at the rear end of the test false vehicle and electrically connected with the second controller. The brake signal receiver is used for receiving the brake signal sent by the brake signal generator. The brake signal receiver is used for braking the signal, the second controller is used for controlling the brake lamp to be lightened after receiving the brake signal, the vehicle loaded with the automatic emergency braking system behind the tested false vehicle can recognize that the brake lamp is lightened, and the recognition content of the automatic emergency braking system is increased; and the accuracy of identifying and testing the false vehicle by the automatic emergency braking system is improved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent connected vehicle testing technology, specifically to a brake light simulation device. Background Technology

[0002] With the development of intelligent vehicle technology, the Advanced Emergency Braking System (AEBS) has emerged. The AEBS system relies on sensors such as onboard radar and cameras to detect road conditions such as obstacles (pedestrians, vehicles ahead, etc.) ahead of the vehicle. The Electronic Control Unit (ECU) then calculates the collision risk. If a potential collision risk is detected, the AEBS system issues a warning, reminding the driver to take measures to avoid a collision. If the driver does not brake or is unable to take evasive action in time, the AEBS system will control the vehicle to initiate emergency braking to assist the driver in avoiding potential collisions, thereby improving driving safety.

[0003] Because vehicles behave differently when initiating emergency braking under various road conditions, it is necessary to test the automatic emergency braking (AEB) performance of vehicles under different road conditions to ensure its reliability. However, due to the inherent risks of AEB testing, dummy vehicles filled with air or foam are used in front of the test vehicle to prevent collision damage. However, existing AEB test dummy vehicles are filled with air or foam, and these dummy vehicles differ significantly from real vehicles, making it difficult for the AEB system to accurately identify them. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a test dummy vehicle and an automatic emergency braking test system, aiming to improve the accuracy of the automatic emergency braking system in identifying test dummy vehicles.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a test dummy car, comprising:

[0006] A brake signal receiver installed inside the test vehicle, a second controller installed inside the test vehicle and electrically connected to the brake signal receiver, and a brake light installed at the rear of the test vehicle and electrically connected to the second controller;

[0007] The brake signal receiver is used to receive the brake signal sent by the brake signal generator.

[0008] Optionally, the test vehicle also includes one or two front wheels and two rear wheels;

[0009] The front wheels are swivel wheels.

[0010] Optionally, it also includes a braking assembly for braking the test dummy vehicle, the braking assembly being electrically connected to the second controller.

[0011] Optionally, the braking assembly consists of two sets, with one set braking the rear wheel.

[0012] Optionally, the braking assembly includes a brake disc, brake calipers, brake cables, and a brake motor; the rear wheels are fixedly connected to the bottom of the test dummy vehicle via a first connector and a second connector.

[0013] The brake motor is fixed inside the test dummy vehicle, the brake disc is fixed to the outer side of the rear wheel, the brake caliper is fixed to the first connector and located at the edge of the brake disc, and the brake motor controls the brake caliper to brake the test dummy vehicle through the brake cable; the brake motor is electrically connected to the second controller.

[0014] Optionally, the braking assembly also includes a cable harness, a first limiting member, and a second limiting member. The brake cable is disposed inside the cable harness. The first limiting member is fixed to the bottom of the test dummy vehicle and close to the brake motor. The second limiting member is fixed to the first connector. One end of the brake cable passes through the first limiting member and is fixedly connected to the output shaft of the brake motor. The other end of the brake cable passes through the second limiting member and is connected to the brake caliper.

[0015] This utility model also proposes an automatic emergency braking test system, including a test dummy vehicle, a towing vehicle, and a connecting component;

[0016] The tractor unit includes a pedal, a pedal displacement sensor for detecting whether the pedal is pressed, a first controller installed inside the tractor unit and electrically connected to the pedal displacement sensor, and a brake signal generator installed inside the tractor unit and electrically connected to the first controller.

[0017] One end of the connecting component is connected to the rear end of the tractor, and the other end of the connecting component is connected to the front end of the test dummy vehicle;

[0018] The brake signal receiver is connected to the brake signal generator.

[0019] Optionally, the rear end of the tractor unit is equipped with several buffer plates.

[0020] Optionally, the brake signal receiver is wirelessly connected to the brake signal generator.

[0021] Optionally, the brake signal receiver is electrically connected to the brake signal generator;

[0022] Optionally, the connection component is a connecting cable, and the brake signal receiver and the brake signal generator are electrically connected via the connecting cable.

[0023] As can be seen from the above technical solution, the beneficial technical effects of this utility model are as follows:

[0024] This application uses a brake signal receiver to receive the brake signal and a second controller to control the brake lights to illuminate after receiving the brake signal. Vehicles equipped with an automatic emergency braking system behind the test dummy vehicle can recognize the illuminated brake lights, thus increasing the recognition content of the automatic emergency braking system and improving the accuracy of the automatic emergency braking system in recognizing the test dummy vehicle.

[0025] This application connects a tractor and a test dummy vehicle via a connecting component. A first controller sends the tractor's pedal pedal input signal to a brake signal receiver via a brake signal generator. A second controller controls the brake lights to illuminate upon receiving the pedal input brake signal. Vehicles equipped with an automatic emergency braking system behind the test dummy vehicle can recognize the illuminated brake lights, thus increasing the recognition capabilities of the automatic emergency braking system and improving its accuracy in identifying the test dummy vehicle. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the brake light simulation device of this utility model;

[0028] Figure 2 This is a structural schematic diagram of a test dummy car according to this utility model;

[0029] Figure 3 for Figure 2 A magnified view of a portion at point A;

[0030] Figure 4 for Figure 2 A magnified view of a portion of point B.

[0031] Figure label:

[0032] 1. Tractor; 11. Pedal; 12. Pedal displacement sensor; 13. First controller; 14. Brake signal generator; 15. Buffer pad; 2. Test dummy vehicle; 21. Brake signal receiver; 22. Second controller; 23. Brake light; 24. Brake assembly; 241. Brake disc; 242. Brake caliper; 243. Brake motor; 244. First limiting member; 245. Second limiting member; 246. Reinforcing connector; 247. Rotating wheel; 25. Front wheel; 26. Rear wheel; 261. First connector; 262. Second connector; 28. Fixing frame; 3. Connecting assembly. Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0035] like Figure 1 As shown, this embodiment provides a test vehicle 2, which includes a brake signal receiver 21 disposed in the test vehicle 2, a second controller 22 disposed in the test vehicle 2 and electrically connected to the brake signal receiver 21, and a brake light 23 disposed at the rear end of the test vehicle 2 and electrically connected to the second controller 22; the brake signal receiver 21 is used to receive the brake signal sent by the brake signal generator 14.

[0036] During the simulated test of test vehicle 2, after the brake signal receiver 21 receives the brake signal, it sends the brake signal to the second controller 22. Upon receiving the brake signal, the second controller 22 controls the brake lights 23 to illuminate. The intelligent connected vehicle behind test vehicle 2 can acquire video of test vehicle 2 and the brake lights 23 through a camera. The intelligent connected vehicle determines whether the brake lights 23 are illuminated based on the video, and then decides whether to activate the automatic emergency braking (AEB) function.

[0037] This application uses a brake signal receiver 21 to receive a brake signal and a second controller 22 to control the brake light 23 to illuminate after receiving the brake signal. Vehicles with an automatic emergency braking system behind the test dummy vehicle 2 can recognize that the brake light 23 is illuminated, which increases the recognition content of the automatic emergency braking system and improves the accuracy of the automatic emergency braking system in recognizing the test dummy vehicle 2.

[0038] In this embodiment, as Figure 1 and 2As shown, in order to facilitate the turning of the test dummy car 2, the test dummy car 2 also includes one or two front wheels 25 and two rear wheels 26; the front wheels 25 are swivel wheels.

[0039] In this embodiment, as Figure 1 and 2 As shown, to prevent the test vehicle from impacting and colliding with the test dummy vehicle 2 and subsequently affecting and colliding with the tractor 1, and to improve the safety of the automatic emergency braking system in identifying the test dummy vehicle, the test dummy vehicle 2 also includes a braking assembly 24 for braking the test dummy vehicle 2. The braking assembly 24 is electrically connected to the second controller 22. When the second controller 22 receives a braking signal, it controls the braking assembly 24 to brake the test dummy vehicle 2.

[0040] In this embodiment, as Figure 1 , 2 As shown in Figures 3 and 4, there are two sets of braking components 24, which are symmetrically arranged; one set of braking components 24 brakes one rear wheel 26.

[0041] In this embodiment, as Figure 1 , 2 As shown in Figures 3 and 4, the braking assembly 24 includes a brake disc 241, a brake caliper 242, a brake cable, and a brake motor 243. The rear wheel 25 is fixedly connected to the bottom of the test dummy vehicle 2 via a first connector 261 and a second connector 262. The brake motor 243 is fixed inside the test dummy vehicle 2. The brake disc 241 is fixed to the outer side of the rear wheel 26. The brake caliper 242 is fixed to the first connector 261 and located at the edge of the brake disc 241. The brake motor 243 controls the brake caliper 242 to brake the test dummy vehicle 2 via the brake cable. The brake motor 243 is electrically connected to the second controller 22. Two brake motors 243 are electrically connected to the second controller 22. The brake motors 243 can be fixed to a mounting bracket 28, which is located at the bottom of the test dummy vehicle 2. The brake disc 241 is fixedly connected to the outer side of the rear wheel 26 via a connecting reinforcement 246. The test dummy vehicle 2 also includes a battery, which provides power to the brake motor 243 and the second controller 22.

[0042] When the second controller 22 receives the braking signal, it controls the two brake motors 243 to rotate. Each brake motor 243 drives the corresponding brake cable to move and the brake cable drives the brake caliper 242 connected to it to clamp the brake disc 241 on a rear wheel 26, thereby braking the test dummy car 2.

[0043] In this embodiment, as Figure 1 , 2As shown in Figures 3 and 4, to further achieve braking of the test dummy vehicle 2, the braking assembly 24 also includes a cable harness, a first limiting member 244, and a second limiting member 245. The brake cable is disposed inside the cable harness. The first limiting member 244 is fixed to the bottom of the test dummy vehicle 2 and close to the brake motor 243. The second limiting member 245 is fixed to the first connecting member 261. One end of the brake cable passes through the first limiting member 244 and is fixedly connected to the output shaft of the brake motor 243. The other end of the brake cable passes through the second limiting member 245 and is connected to the brake caliper 242. The first limiting member 244 is fixed to the mounting bracket 28 and located on one side of the output shaft of the brake motor 243.

[0044] In another embodiment, a rotating wheel 247 is provided on the output shaft of the brake motor 243, and one end of the brake cable passes through the first limiting member 244 and is fixedly connected to the rotating wheel 247 fixed on the output shaft of the brake motor 243.

[0045] Furthermore, this utility model also includes an automatic emergency braking test system. This automatic emergency braking test system includes a test dummy vehicle 2, a towing vehicle 1, and a connecting assembly 3. The towing vehicle 1 includes a pedal 11, a pedal displacement sensor 12 for detecting whether the pedal 11 is pressed, a first controller 13 disposed within the towing vehicle 1 and electrically connected to the pedal displacement sensor 12, and a brake signal generator 14 disposed within the towing vehicle 1 and electrically connected to the first controller 13. One end of the connecting assembly 3 is connected to the rear end of the towing vehicle 1, and the other end of the connecting assembly 3 is connected to the front end of the test dummy vehicle 2. A brake signal receiver 21 is signal-connected to the brake signal generator 14. The connecting assembly 3 can be a deformable buffer structure or a non-deformable rigid structure. The brake signal receiver 21 is used to receive the brake signal emitted by the brake signal generator 13.

[0046] In another embodiment, the test dummy vehicle 2 is a foam dummy vehicle, and the connecting component 3 can be a rigid trailing rail, which is fixedly installed at the end of the tractor vehicle 1 near the test dummy vehicle 2. A slide rail is fixedly installed at the end of the test dummy vehicle 2 near the tractor vehicle 1, and the trailing rail slides on the slide rail. The trailing rail and the slide rail are fixedly connected by tape. When the test dummy vehicle 2 is collided with by a test vehicle behind it, the trailing rail slides within the slide rail, inserting into the foam test dummy vehicle to provide cushioning and prevent the test vehicle from affecting the tractor vehicle. By fixing the trailing rail and the slide rail with tape, the tractor vehicle 1 can tow the test dummy vehicle 2, and the trailing rail can slide within the slide rail when the test dummy vehicle 2 is collided with, preventing the test vehicle from affecting the tractor vehicle.

[0047] During the brake light simulation, the driver inside the tractor unit 1 presses pedal 11. Pedal displacement sensor 12 detects the braking signal of pedal 11 being pressed and transmits it to the first controller 13. The first controller 13 then sends the braking signal to the brake signal receiver 21. After receiving the braking signal, the brake signal receiver 21 sends it to the second controller 22. Upon receiving the braking signal, the second controller 22 illuminates the brake light 23. The intelligent connected vehicle behind the test dummy vehicle 2 can capture video of the test dummy vehicle 2 and the brake light 23 via a camera. The intelligent connected vehicle uses the video to determine whether the brake light 23 is illuminated and decides whether to activate the automatic emergency braking (AEB) function.

[0048] This application connects the tractor vehicle 1 and the test dummy vehicle 2 via the connecting component 3. The first controller 13 sends the pedal 11 pedal-pressing signal of the tractor vehicle to the brake signal receiver 21 via the brake signal generator 14. The second controller 22 controls the brake light 23 to illuminate after receiving the pedal 11 pedal-pressing brake signal. Vehicles with an automatic emergency braking system behind the test dummy vehicle 2 can recognize the illuminated brake light 23, which increases the recognition content of the automatic emergency braking system and improves the accuracy of the automatic emergency braking system in recognizing the test dummy vehicle 2.

[0049] In this embodiment, as Figure 1 As shown, in order to further connect the tractor 1 and the test dummy 2, the connecting component 3 is a trailer rail.

[0050] In this embodiment, as Figure 1 and 2 As shown, in order to further reduce the impact of the test dummy vehicle 2 on the tractor vehicle 1, several buffer plates 15 are provided at the rear end of the tractor vehicle 1. By providing several buffer plates 15 at the rear end of the tractor vehicle 1, the buffering effect of the tractor vehicle 1 when it is hit by the test dummy vehicle 2 can be improved.

[0051] In this embodiment, as Figure 1 As shown, the brake signal receiver 21 is wirelessly connected to the brake signal generator 13. When the brake pedal 11 is pressed, the pedal displacement sensor 12 generates an electrical signal. After receiving the electrical signal, the first controller 13 transmits the electrical signal wirelessly through the brake signal generator 14. After receiving the wireless signal, the brake signal receiver 21 sends the wireless signal to the second controller 22. The second controller 22 controls the brake lights to illuminate according to the wireless signal.

[0052] In this embodiment, as Figure 1 As shown, the brake signal receiver 21 is electrically connected to the brake signal generator 13.

[0053] In this embodiment, as Figure 1 As shown, the connecting component 3 is a connecting cable, and the brake signal receiver 21 and the brake signal generator 13 are electrically connected through the connecting cable. A signal line with internal signal transmission capability can be used as the connecting cable, thereby enabling the brake signal receiver 21 and the brake signal generator 13 to be electrically connected.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A test dummy, characterized in that The test dummy vehicle comprises a brake signal receiver arranged in the test dummy vehicle, a second controller arranged in the test dummy vehicle and electrically connected with the brake signal receiver, and a brake light arranged at the rear end of the test dummy vehicle and electrically connected with the second controller. The brake signal receiver is configured to receive a brake signal sent by a brake signal generator. The test dummy vehicle further comprises one or two front wheels and two rear wheels.

2. The test dummy vehicle of claim 1, wherein, The front wheels are universal wheels. The test dummy vehicle further comprises a brake assembly configured to brake the test dummy vehicle, and the brake assembly is electrically connected with the second controller.

3. Test dummy vehicle according to claim 1 or 2, characterized in that The brake assembly comprises two groups, and one group of the brake assembly brakes one rear wheel.

4. The test dummy vehicle of claim 3, wherein, The brake assembly comprises a brake disc, a brake caliper, a brake wire, and a brake motor.

5. The test dummy vehicle of claim 4, wherein, The brake motor is fixed in the test dummy vehicle, the brake disc is fixed to the outer side of the rear wheel, the brake caliper is fixed to the first connecting piece and located at the edge of the brake disc, and the brake motor controls the brake caliper to brake the test dummy vehicle through the brake wire. The brake assembly further comprises a wire tube, a first limiting piece, and a second limiting piece.

6. The test dummy vehicle of claim 5, wherein, The brake wire is arranged in the wire tube, the first limiting piece is fixed to the bottom of the test dummy vehicle and close to the brake motor, and the second limiting piece is fixed to the first connecting piece.

7. An automatic emergency brake testing system characterized by, One end of the brake wire is fixedly connected with the output shaft of the brake motor after passing through the first limiting piece, and the other end of the brake wire is connected with the brake caliper after passing through the second limiting piece. The test dummy vehicle further comprises a towing vehicle and a connecting assembly. The towing vehicle comprises a pedal, a pedal displacement sensor configured to detect whether the pedal is stepped on, a first controller arranged in the towing vehicle and electrically connected with the pedal displacement sensor, and a brake signal generator arranged in the towing vehicle and electrically connected with the first controller. One end of the connecting assembly is connected with the rear end of the towing vehicle, and the other end of the connecting assembly is connected with the front end of the test dummy vehicle.

8. The automatic emergency braking testing system of claim 7, wherein, The brake signal receiver is signal connected with the brake signal generator.

9. An automatic emergency braking test system according to claim 7 or 8, characterized in that, The rear end of the towing vehicle is provided with a plurality of buffer sheets.

10. An automatic emergency braking test system according to claim 7 or 8, characterized in that The brake signal receiver is wirelessly signal connected with the brake signal generator. The brake signal receiver is electrically connected with the brake signal generator. Alternatively, the connecting assembly is a connecting wire, and the brake signal receiver is electrically connected with the brake signal generator through the connecting wire.

Images