油门防误踩系统的设计

Design of Throttle System

为了减少驾驶员在突发状况发生时误踩加速踏板此类交通事故的发生,文章基于突发情况下制动时误踩加速踏板的力比正常情况下踩加速踏板的力大很多这一事实,从而导致节气门的开度会比正常加速情况下大得多。以此可以通过节气门位置传感器测量得出紧急情况下误踩油门时节气门的开启时间、角加速度与角速度这三个参数的值,并与设定的各自临界门槛值相比较,判断是否为误踩油门踏板的情况。若控制单元判断为误踩加速踏板,则由执行单元对汽车进行紧急制动,有效地防止此类误踩油门而导致的交通事故。

In order to reduce the occurrence of such a traffic accident in the event of a sudden increase in the occurrence of an emergency pedal, the paper is based on the fact that the force of the accelerator pedal in the case of sudden braking is much greater than that in the normal case , resulting in a throttle opening greater than normal acceleration.This can be measured by the throttle position sensor to get the throttle opening time,angular acceleration and angular velocity of under the emergency throttle, and set the respective threshold to compare so as to determine whether is the error step on the accelerator pedal.If the control unit determines that the accelerator pedal is erroneously pressed, the emergency braking is performed by the execution unit to effec-tively prevent the traffic accident caused by such a throttle.