汽车智能防误踩油门系统的设计

Design on Automobile Smart System for Preventing False Step on Accelerator

为尽量避免驾驶员紧急制动时因误踩油门而造成的交通事故,文章设计了一种新型智能防误踩油门电子控制系统。分析了驾驶员正常踩油门与紧急制动误踩油门时油门踏板加速度的差异,并以踏板加速度为30 m/s2作为判断驾驶员的操作阈值。分析了制动距离与车速的关系,以制动距离作为是否执行紧急制动的依据。系统结合电子控制技术,并在判断驾驶员操作为误踩油门时,采取紧急制动及发动机怠速控制,减少交通事故的发生,提高了汽车行驶的安全性。

A smart electronic control system for preventing false step on accelerator is designed to avoid traffic accidents occurred because of the false step on accelerator during emergency braking. The paper analyzes the difference of acceleration of accelerator pedal between common operation and false step on accelerator in case of emergency, and takes acceleration of accelerator pedal at 30 m/s^2 as the judged threshold. Correlation between braking distance and speed is analyzed, and the braking distance is used to judge if the emergency braking should be taken. Combining with electronic control technology, the system takes emergency braking and engine idle speed control when judged out false step on accelerator, which can reduce the incidence of traffic accidents and increase the driving safety.