基于EU 2021/1958的机动车智能速度辅助系统性能试验研究

Experimental Study on the Performance of Motor Vehicles’Intelligent Speed Assist System Based on EU 2021/1958

针对目前国内对机动车智能速度辅助(ISA)系统性能、标准及测试方法研究较少的问题,介绍了ISA系统的工作原理,研究了EU 2021/1958规定的典型测试场景,在此基础上开发了机动车ISA性能测试系统和测试场景,并依据标准完成对某乘用车ISA系统性能的道路验证测试。测试结果表明:该车辆ISA系统符合EU 2021/1958的要求,且车速越高,系统识别限速标志越晚,开发ISA系统时应关注高速条件下系统识别限速标志的灵敏度问题。

In response to the lack of research on the performance,standards,and testing methods of Intelligent Speed Assistance(ISA)system for motor vehicles in China at present,this paper introduced the working principle of ISA,studied the typical test scenarios specified in EU 2021/1958.On this basis,a motor vehicles’ISA performance testing system and scenario were developed and a road test of a passenger car’s ISA performance was carried out according to the standard.The results indicate that the test vehicle’s ISA system complies with the requirements of EU 2021/1958 and the higher the vehicle speed,the later the ISA system will recognize the speed limit sign and when developing ISA systems attention should be paid to the sensitivity of the ISA system to recognize the speed limit sign when the speed is high.