Device and method for testing automotive active safety systems on bench

Abstract

The invention discloses a device and a method for testing automotive active safety systems on a bench. The device comprises a camera bellow, a to-be-tested system, a display, an upper computer and a lower computer. Scene animation required by tests is generated by the upper computer and is displayed via the display; the scene animation is acquired by the to-be-tested system; movement of a to-be-tested automobile is simulated by the lower computer in real time, the lower computer is communicated with the to-be-tested system via a CAN (controller area network) bus, automobile state and driver operation information is transmitted to the to-be-tested system, and bus data transmitted by the to-be-tested system are received; the lower computer is communicated with the upper computer via a network cable, and running data of the automobile are transmitted to the upper computer, so that the scene animation can be updated in real time; the upper computer is further used as a test managing and monitoring platform. The device and the method have the advantages that active safety tests are carried out on the automobile on the bench, so that field tests or field data acquisition can be omitted, test workload can be reduced, test risks and the test cost can be decreased, and the test repeatability can be improved; large test working condition databases can be omitted, and accordingly the test working condition data can be conveniently managed.

Description

technical field

[0001] The invention belongs to the automotive active safety testing technology, in particular to a bench testing device and method for an automotive active safety system. Background technique

[0002] With the development of automotive technology, with people's increasing demands for safety, comfort and intelligence, active safety systems have become a research hotspot. Active safety systems usually include three links: perception, decision-making and execution. Perception is the identification of the environment around the vehicle through a variety of sensors, including cameras, radar, lidar, and ultrasonics. Cameras have been widely used in active safety systems due to their low cost, rich information, and mature image processing technology, such as lane departure warning systems, pedestrian detection systems, and lane keeping systems.

[0003] The test of camera-based active safety system is still mainly based on real vehicle testing, such as "Test Devi...

Examples

Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] like figure 1 The bench test device for the automotive active safety system includes a camera obscura 1, a system to be tested 4, a display 7, a video cable 8, a host computer 2, a network cable 13, a lower computer 3 and a CAN bus 16. The lower computer 3 includes a real-time controller 15 and a CAN card 14 ; the system to be tested 4 includes a camera 5 and a controller 6 . The system to be tested 4 and the display 7 are installed inside the dark box 1, the display 7 is connected to the upper computer 2 through the video cable 8, the upper computer 2 is connected to the lower computer 3 through the network cable 13, and the lower computer 3 is connected to the standby computer through the CAN card 14 and the CAN bus 16. The controller 6 of the system under test 4 is connected, the camera 5 of the system to be tested 4 is aligned with the display 7, and the co...

technical field

[0001] The invention belongs to the automotive active safety testing technology, in particular to a bench testing device and method for an automotive active safety system. Background technique

[0002] With the development of automotive technology, with people's increasing demands for safety, comfort and intelligence, active safety systems have become a research hotspot. Active safety systems usually include three links: perception, decision-making and execution. Perception is the identification of the environment around the vehicle through a variety of sensors, including cameras, radar, lidar, and ultrasonics. Cameras have been widely used in active safety systems due to their low cost, rich information, and mature image processing technology, such as lane departure warning systems, pedestrian detection systems, and lane keeping systems.

[0003] The test of camera-based active safety system is still mainly based on real vehicle testing, such as "Test Devi...

Examples

Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] like figure 1 The bench test device for the automotive active safety system includes a camera obscura 1, a system to be tested 4, a display 7, a video cable 8, a host computer 2, a network cable 13, a lower computer 3 and a CAN bus 16. The lower computer 3 includes a real-time controller 15 and a CAN card 14 ; the system to be tested 4 includes a camera 5 and a controller 6 . The system to be tested 4 and the display 7 are installed inside the dark box 1, the display 7 is connected to the upper computer 2 through the video cable 8, the upper computer 2 is connected to the lower computer 3 through the network cable 13, and the lower computer 3 is connected to the standby computer through the CAN card 14 and the CAN bus 16. The controller 6 of the system under test 4 is connected, the camera 5 of the system to be tested 4 is aligned with the display 7, and the co...

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