针对追尾碰撞预警系统预警规则的制定上没有考虑驾驶人的主观因素的问题,提出利用大量实车试验,获取被试驾驶人主观判断跟车极限时刻,并通过数据统计的分析,制定基于驾驶人主观因素的追尾碰撞预警系统预警规则。采用测距传感器、飞思卡尔单片机以及蜂鸣器作为系统的数据采集、数据处理和信息反馈单元的主要硬件。采用移植性好的C语言作为系统开发的程序语言。通过实车条件下的验证试验,证明此基于驾驶人主观因素的追尾碰撞预警系统稳定性好、准确、可靠。 Aiming at the problem that the early warning system of the rear-end collision warning system does not consider the subjective factors of the driver, a lot of real-vehicle tests are proposed to obtain the subjective judgment of the test driver following the limit time of the car. Based on the statistical analysis of the data, Subjective factors rear-end collision warning system early warning rules. Using ranging sensors, Freescale microcontrollers and buzzer as the system’s data acquisition, data processing and information feedback unit’s main hardware. The use of good transplant C language as a system development programming language. Through the real vehicle test, it proves that the rear-end collision warning system based on the driver’s subjective factors has good stability, accuracy and reliability.