Vehicle testing device
By designing a vehicle test device containing a mannequin and a radar reflective layer, a variety of information is collected for accurate judgment of the active hood system, the problem of accidentally exploded in the test of unmanned vehicle is solved, and efficient and low-cost test accuracy is achieved.
Patent Information
- Application Number
- CN202422334711.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the test of unmanned vehicle, the active hair cover system has the problem of false explosions, and it is impossible to effectively use the fusion of multiple information to make accurate explosion decisions.
A vehicle test device is designed, including human legs and upper models, equipped with radar wave reflective layer, camera and pressure sensor, collecting a variety of information to accurately determine the active hood system, simulating the collision between a vehicle and a pedestrian.
The active hood system with multi-information fusion is realized accurately, reducing the test cost, improving the test accuracy, and simple structure and low cost.
Smart Images
Figure CN223205138U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle testing, in particular to a vehicle testing device. Background Art
[0002] With the continuous advancement of vehicle intelligence, autonomous vehicles are becoming increasingly commonplace in our lives. Pedestrian protection is a crucial component of autonomous vehicle safety. Before leaving the factory, autonomous vehicles undergo pedestrian collision testing. During these tests, the vehicle collides with a pedestrian dummy to simulate a collision with a pedestrian crossing the road. When the vehicle and pedestrian dummy come into contact (collision, proximity, etc.), the vehicle's active hood is activated.
[0003] However, when the vehicle is tested using the existing pedestrian model, it can only collect the vehicle's collision acceleration signal, or the collision acceleration signal and pressure signal. The vehicle's active hood system is activated and decided based on the collision acceleration signal or the collision acceleration signal and pressure signal, which may result in varying degrees of misfires. Utility Model Content
[0004] The utility model aims at solving the technical problems in the prior art of misfiring of an active hood system when a vehicle is tested using a pedestrian model, and proposes a vehicle testing device.
[0005] To solve the above problems, an embodiment of the present invention provides a vehicle testing device, comprising a human leg model provided with a human leg characteristic pattern layer, and a human upper model provided with a human upper characteristic pattern layer; the human leg model comprises a non-impact side leg model and an impact side leg model; the human upper model can be detachably mounted on the impact side leg model, and the non-impact side leg model can be detachably mounted on the human upper model, and both the impact side leg model and the non-impact side leg model are located at the lower end of the human upper model; the human upper model is also provided with a radar wave reflecting layer.
[0006] Optionally, the vehicle test device further comprises a first magnetic member and a second magnetic member, wherein the first magnetic member is mounted on the upper human body model, and the second magnetic member is mounted on the non-impact side leg model;
[0007] The non-impact side leg model is detachably mounted on the upper human body model through the first magnetic attraction member and the second magnetic attraction member that are magnetically attracted to each other.
[0008] Optionally, the vehicle testing device further comprises a third magnetic attraction member mounted on the impact-side leg model;
[0009] The upper human body model is detachably mounted on the impact-side leg model through the first magnetic member and the third magnetic member that are magnetically attracted to each other.
[0010] Optionally, the vehicle testing device further comprises a base, and one end of the impact-side leg model away from the upper human body model is detachably mounted on the base.
[0011] Optionally, the vehicle test device further comprises a fourth magnetic member mounted on the impact-side leg model, and a fifth magnetic member mounted on the base;
[0012] The impact side leg model is detachably mounted on the base through the fourth magnetic component and the fifth magnetic component that are magnetically attracted to each other.
[0013] Optionally, the vehicle testing device further comprises a positioning plate, which is mounted on the base and is used to abut against the impact-side leg model when the impact-side leg model is mounted on the base.
[0014] Optionally, a positioning groove is provided on the positioning plate, and when the impact side leg model is installed on the base, the impact side leg model is inserted into the positioning groove and abuts against the inner wall of the positioning groove.
[0015] Optionally, the upper human body model is provided with a first inflation cavity and a first air nozzle connected to the first inflation cavity.
[0016] Optionally, the non-impact side leg model is provided with a second inflation cavity and a second air nozzle connected to the second inflation cavity.
[0017] Optionally, the impact side leg model includes a side leg inner skeleton and a flexible wrapping piece wrapped around the side leg inner skeleton.
[0018] In the present invention, a vehicle test device is installed in a road test field, the vehicle's millimeter wave radar and / or camera is turned on, the vehicle drives towards the vehicle test device at different speeds, and performs various types and speed tests such as uniform speed collision, acceleration collision, deceleration collision and deceleration without collision with the vehicle test device. When the vehicle collides with the vehicle test device, a pressure hose signal and a collision acceleration signal can be collected, the upper human body feature pattern layer on the upper human body model and the human leg feature pattern layer on the human leg model will be captured by the camera on the vehicle, and the radar wave reflection layer installed on the upper human body model will be measured in real time by the radar on the vehicle. The vehicle collects parameters such as speed and distance, enabling the vehicle to collect these parameters. These parameters can be used to calibrate the detonation strategy discrimination algorithm for the active hood system based on multi-information fusion. Compared to existing technologies that rely solely on acceleration, or acceleration and pressure signals, to initiate and decide on the vehicle's active hood system, this vehicle test rig can collect information from four major attributes: cameras, radar, acceleration, and pressure hoses. It simulates the detonation of the active hood when a vehicle impacts a pedestrian crossing the road, providing strong support for the development of active hood systems based on multi-information fusion and ensuring the accuracy of vehicle tests using this vehicle test rig. Furthermore, the vehicle test rig has a simple structure and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 A schematic diagram of a vehicle testing device provided in one embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of an impact side leg model of a vehicle testing device provided by an embodiment of the present utility model being installed on a base.
[0022] The reference numerals in the specification are as follows:
[0023] 1. Non-impact side leg model; 11. Human leg characteristic pattern layer; 12. Second magnetic component; 13. Second air nozzle; 2. Human upper body model; 21. Radar wave reflection layer; 22. Human upper body characteristic pattern layer; 23. First magnetic component; 24. First air nozzle; 3. Impact side leg model; 31. Third magnetic component; 32. Fourth magnetic component; 4. Base; 41. Fifth magnetic component; 42. Positioning plate. DETAILED DESCRIPTION
[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0025] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.
[0026] like Figure 1 and Figure 2 As shown, the first embodiment of the present invention provides a vehicle testing device comprising a human leg model provided with a human leg characteristic pattern layer 11, and a human upper model 2 provided with a human upper body characteristic pattern layer 22. The human leg model comprises a non-impact-side leg model 1 and an impact-side leg model 3. The human upper model 2 is detachably mounted on the impact-side leg model 3, and the non-impact-side leg model 1 is detachably mounted on the human upper model 2. Both the impact-side leg model 3 and the non-impact-side leg model 1 are located at the lower end of the human upper model 2. The human upper model 2 is also provided with a radar wave reflecting layer 21. It is understood that the human upper model 2 can be painted with the human upper body characteristic pattern layer 22 to simulate human upper body characteristics, and the impact-side leg model 3 and / or the non-impact-side leg model 1 can be painted with human leg patterns to simulate human leg shape characteristics. The radar wave reflecting layer 21 can be mounted on the side of the human upper model 2.
[0027] In the present invention, a vehicle test device is installed in a road test field, the vehicle's millimeter wave radar and / or camera is turned on, the vehicle drives towards the vehicle test device at different speeds, and performs various types and speed tests such as uniform speed collision, acceleration collision, deceleration collision and deceleration without collision with the vehicle test device. When the vehicle collides with the vehicle test device, the pressure hose signal and the collision acceleration signal can be collected, the upper human body feature pattern layer 22 on the upper human body model 2 and the human leg feature pattern layer 11 on the human leg model will be captured by the camera on the vehicle, and the radar wave reflection layer 21 installed on the upper human body model 2 will be captured by the radar on the vehicle. By measuring parameters such as speed and distance, the vehicle can collect these parameters. These parameters can be used to calibrate the detonation strategy discrimination algorithm for the active hood system based on multi-information fusion. Compared to existing technologies that only use acceleration, or acceleration and pressure signals, to activate and make decisions for the vehicle's active hood system, this vehicle test device can collect information from four major attributes: cameras, radar, acceleration, and pressure hoses. It can simulate the detonation of the active hood when a vehicle impacts a pedestrian crossing the road, providing strong support for the development of active hood systems based on multi-information fusion and ensuring the accuracy of vehicle tests using this vehicle test device. Furthermore, the vehicle test device has a simple structure and low manufacturing cost.
[0028] In one embodiment, if Figure 1 As shown, the vehicle testing device further includes a first magnetic member 23 and a second magnetic member 12. The first magnetic member 23 is mounted on the upper human body model 2, and the second magnetic member 12 is mounted on the non-impact-side leg model 1. The non-impact-side leg model 1 is detachably mounted on the upper human body model 2 via the mutually magnetic attraction between the first magnetic member 23 and the second magnetic member 12. It is understood that the first magnetic member 23 and the second magnetic member 12 can be two magnetic members, or one can be a magnetic member and the other a metal member.
[0029] In this embodiment, the design of the first magnetic member 23 and the second magnetic member 12 is such that when a vehicle collides with the vehicle test device, the non-impact-side leg model 1 and the upper human body model 2 will be separated, thereby avoiding accidents in which the non-impact-side leg model 1 and the upper human body model 2 are damaged. As a result, the non-impact-side leg model 1 and the upper human body model 2 can be reused, further reducing the test cost; and the disassembly and assembly operations between the non-impact-side leg model 1 and the upper human body model 2 are simple.
[0030] In one embodiment, if Figure 1As shown, the vehicle testing device further includes a third magnetic member 31 mounted on the impact-side leg model 3; the upper human body model 2 is detachably mounted on the impact-side leg model 3 via the first magnetic member 12 and the third magnetic member 31, which are magnetically attracted to each other. It is understood that the first magnetic member 23 and the third magnetic member 31 can be two magnetic members, or one can be a magnetic member and the other a metal member.
[0031] In this embodiment, the design of the first magnetic component 23 and the third magnetic component 31 is that when a vehicle collides with the vehicle test device, the upper human body model 2 and the impact-side leg model 3 will be separated, avoiding accidents in which the upper human body model 2 and the impact-side leg model 3 are damaged, so that the upper human body model 2 and the impact-side leg model 3 can be reused, further reducing the test cost; and the disassembly and assembly operations between the upper human body model 2 and the impact-side leg model 3 are simple.
[0032] In one embodiment, if Figure 1 and Figure 2 As shown, the vehicle test apparatus further includes a base 4, on which the end of the impact-side leg model 3, which is away from the upper human body model 2, is detachably mounted. It is understood that the base 4 is fixed or stably placed on the ground; the bottom of the impact-side leg model 3 can be detachably mounted on the base 4 using a magnetic structure, a snap-fit structure, or the like.
[0033] Specifically, when a vehicle collides with the impact-side leg model 3 , the impact-side leg model 3 can be separated from the base 4 , thereby preventing the impact-side leg model 3 from being damaged, so that the impact-side leg model 3 can be reused, reducing the test cost.
[0034] In one embodiment, if Figure 1 and Figure 2 As shown, the vehicle test device also includes a fourth magnetic component 32 installed on the impact-side leg model 3, and a fifth magnetic component 41 installed on the base 4; the impact-side leg model 3 is detachably mounted on the base 4 by the fourth magnetic component 32 and the fifth magnetic component 41 that are magnetically attracted to each other. It can be understood that the fourth magnetic component 32 and the fifth magnetic component 41 can be two magnetic components, or one can be a magnetic component and the other can be a metal component. In this embodiment, the design of the fourth magnetic component 32 and the fifth magnetic component 41 facilitates the disassembly and assembly between the impact-side leg model 3 and the base 4.
[0035] In one embodiment, if Figure 1 and Figure 2As shown, the vehicle test device further includes a positioning plate 42, which is mounted on the base 4 and is used to abut against the impact-side leg model 3 when the impact-side leg model 3 is mounted on the base 4. Preferably, a positioning groove is provided on the positioning plate 42, and when the impact-side leg model 3 is mounted on the base 4, the impact-side leg model 3 is inserted into the positioning groove and abuts against the inner wall of the positioning groove. In this embodiment, each time the impact-side leg model 3 is mounted on the base 4, the side surface of the impact-side leg model 3 abuts against the positioning plate 42, so that the installation position of the impact-side leg model 3 on the base 4 is the same each time, thereby improving the repeatability of the vehicle test device.
[0036] In one embodiment, if Figure 1 As shown, the upper human body model 2 is provided with a first inflation cavity (not shown) and a first air nozzle 24 communicating with the first inflation cavity. It will be appreciated that an air pump can inflate the first inflation cavity through the first air nozzle 24 to inflate the upper human body model 2. In this embodiment, the upper human body model 2 has a simple structure and low manufacturing cost.
[0037] In one embodiment, if Figure 1 As shown, the non-impact leg model 1 is provided with a second inflation cavity (not shown) and a second air nozzle 13 communicating with the second inflation cavity. As will be appreciated, an air pump can inflate the second inflation cavity through the second air nozzle 13 to inflate the non-impact leg model 1. In this embodiment, the non-impact leg model 1 has a simple structure and low manufacturing cost.
[0038] In one embodiment, the impact-side leg model 3 includes a leg endoskeleton and a flexible wrapping member wrapped around the leg endoskeleton. It is understood that the leg endoskeleton may be a metal frame, and the flexible wrapping member includes, but is not limited to, a silicone sleeve, and can simulate human leg muscles. In this embodiment, the impact-side leg model 3 has sufficient strength and rigidity to be less susceptible to damage when a vehicle impacts the impact-side leg model 3.
[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A vehicle testing device, characterized in that: The invention comprises a human leg model provided with a human leg characteristic pattern layer, and a human upper model provided with a human upper characteristic pattern layer; the human leg model comprises a non-impact side leg model and an impact side leg model; the human upper model is detachably mounted on the impact side leg model, and the non-impact side leg model is detachably mounted on the human upper model, and both the impact side leg model and the non-impact side leg model are located at the lower end of the human upper model; the human upper model is also provided with a radar wave reflecting layer.
2. The vehicle testing device according to claim 1, characterized in that The vehicle test device further includes a first magnetic member and a second magnetic member, wherein the first magnetic member is mounted on the upper human body model, and the second magnetic member is mounted on the non-impact side leg model; The non-impact side leg model is detachably mounted on the upper human body model through the first magnetic attraction component and the second magnetic attraction component that are magnetically attracted to each other.
3. The vehicle testing device according to claim 2, characterized in that: The vehicle testing device further includes a third magnetic attraction member mounted on the impact-side leg model; The upper human body model is detachably mounted on the impact-side leg model through the first magnetic member and the third magnetic member that are magnetically attracted to each other.
4. The vehicle testing device according to claim 1, wherein: The vehicle testing device further comprises a base, and one end of the impact-side leg model away from the upper human body model is detachably mounted on the base.
5. The vehicle testing device according to claim 4, characterized in that: The vehicle testing device further includes a fourth magnetic attraction member mounted on the impact-side leg model, and a fifth magnetic attraction member mounted on the base; The impact side leg model is detachably mounted on the base through the fourth magnetic component and the fifth magnetic component that are magnetically attracted to each other.
6. The vehicle testing device according to claim 4, characterized in that: The vehicle testing device further includes a positioning plate mounted on the base and configured to abut against the impact-side leg model when the impact-side leg model is mounted on the base.
7. The vehicle testing device according to claim 6, characterized in that: A positioning groove is provided on the positioning plate. When the impact side leg model is installed on the base, the impact side leg model is inserted into the positioning groove and abuts against the inner wall of the positioning groove.
8. The vehicle testing device according to claim 1, characterized in that The upper human body model is provided with a first inflation cavity and a first air nozzle connected to the first inflation cavity.
9. The vehicle testing device according to claim 1, characterized in that: The non-impact side leg model is provided with a second inflation cavity and a second air nozzle connected to the second inflation cavity.
10. The vehicle testing device according to claim 1, wherein: The impact side leg model includes a side leg inner skeleton and a flexible wrapping piece wrapped around the side leg inner skeleton.