【摘要】 针对有行人出现时汽车自动紧急制动(AEB)测试需求,设计了一种行人检测系统。该系统主要包括假人目标、假人驱动装置以及控制系统,可根据中国新车评价规程(C-NCAP)的AEB行人测试场景要求,驱动假人目标按规定的路线移动,并与测试汽车的驾驶机器人实现互联互通。为验证所设计的行人检测系统的有效性,进行了假人目标移动位移、移动速度和驾驶机器人的协同测试。测试结果表明:该行人检测系统的一次成功率达90%以上,假人速度控制的精度达96%,假人与测试汽车的碰撞位置准确度达96%,可以模拟行人出现时的汽车紧急制动场景。该AEB行人测试系统可以用于C-NCAP行人测试,在汽车AEB功能测评中应用具有较强的实际应用价值。更多还原

【Abstract】 In order to improve the stability of the emergency braking system, it is necessary to carry out systematic test and evaluation on the performance of automatic emergency braking(AEB). In accordance with the requirements stipulated by the China-New Car Assessment Regulations(NCAR), a pedestrian detection system is designed for catering to the demand of AEB test in the presence of pedestrians. The pedestrian system consists of dummy target, dummy drive device and control system as well as other core parts. In line with the requirements for AEB pedestrian test in different situations of the China New Car Assessment Protocol(C-NCAP) and special situations in which domestic pedestrians often conduct emergency braking system, the dummy target were operated to move along the prescribed route, and it achieves real-time interconnectivity with the driving robot of the test car.In addition, to verify the effectiveness of the designed pedestrian detection system, pedestrian hazardous working condition tests were conducted in accordance with the pedestrian test conditions specified by C-NACP with the purpose of checking the control accuracy of the AEB pedestrian detection system on identifying the dummy target position and speed as well as the wireless communication performance of the AEB pedestrian detection system and the test vehicle. The test results show that the dummy target’s moving displacement, speed and driving robot’s coordination meet the regulatory requirements.The first success rate of the detection system reaches more than 90%. The accuracy of the dummy speed control hits 96%,and the preciseness of the collision position between the dummy and the test car registers 96%. The designed dummy target is equipped with physical human and infrared reflection characteristics. So with high-level accuracy, it can be used for working hazardous test of pedestrians and serve as an effective tool for the evaluation and test of AEB and the development of relevant products. The test also demonstrates the emergency braking scene with pedestrians appearing can be simulated. In conclusion, this AEB pedestrian test system can be used for C-NCAP pedestrian test and applied in automotive AEB function test, boasting strong practical application value.更多还原