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...

AI Technical Summary

Problems solved by technology

There are several problems with this testing method: first, the workload of test preparation is heavy, it is difficult to create or select the required test scenarios, the test cycle is long, and the test cost is high; the second is high risk, especially for more dangerous tests The third is that the repeatability is poor, it is difficult to capture and reproduce the scene in the development, and the consistency of the test scene cannot be guaranteed in the benchmark test, which affects the objectivity of the evaluation

However, the problem with this method is that when establishing the test condition database, a large amount of real vehicle data collection is also required, real test scenarios need to be constructed, and a large number of test condition databases need to be managed at the same time

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