In order to avoid the occurrence of the events that the accelerator pedal was stepped under emergency, a mechanical safety as- sistant system that anti mistakenly stepped on the accelerator was designed. According to the difference of acceleration of accelerator pedal be- tween common operation and false step on accelerator under emergency, the system determined whether to carry out emergency brake with the safety assistance device or not, and reasonable structure was obtained by making use of the principle of clutch. It is ensured that the accele...
