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将车辆油门当作刹车误踩,常带来严重后果。对汽车油门误踩进行检测,为保证车辆行驶安全提供基础。利用安装于踏板轴上的旋转编码器检测油门踏板的下踩速度和踏板位置,对车辆速度进行采样,利用相邻采样时刻的速度差和采样周期计算车辆的加速度。在油门踏板的下踩速度和到达位置超过阈值时,或者车辆的加速度超过阈值时,认为油门踏板误踩。利用单片机设计了检测系统,并进行了模拟实验。模拟实验表明,该检测系统逻辑正确,实时性好。该系统能够快速准确的实现油门踏板误踩检测。
The vehicle throttle as a brake pedal, often have serious consequences. On the car throttle error detection, in order to ensure the safety of vehicles provide the basis for safety. A rotary encoder mounted on a pedal shaft is used to detect the depression speed and the pedal position of the accelerator pedal to sample the vehicle speed and calculate the acceleration of the vehicle by using the speed difference and the sampling period of the adjacent sampling times. When the accelerator pedal depression speed and the reach position exceed the threshold value or the acceleration of the vehicle exceeds the threshold value, it is considered that the accelerator pedal is erroneously stepped on. The use of single-chip design of the test system, and conducted a simulation experiment. Simulation experiments show that the detection system is correct in logic and real-time. The system can quickly and accurately detect accelerator pedal misuse.