Wrong-pedaling-prevention protection method for accelerator pedal of novel battery electric vehicle

Abstract

The invention discloses a wrong-pedaling-prevention protection method for an accelerator pedal of a novel battery electric vehicle. The method is characterized by comprising the steps that a sensor obtains the driving state and before-vehicle obstacle information of the vehicle, and transmits the state and information to a signal analysis and processing system through a CAN, the processing systemmakes a judgment and finally transmits the judgment result to a finished vehicle controller through the CAN, and the finished vehicle controller sends out a final instruction; a radar sensor is adopted for collecting information of the distance between an obstacle in front of the vehicle and the vehicle; meanwhile, a vehicle speed sensor collects vehicle speed information, the finished vehicle controller records the opening degree and time of the accelerator pedal in real time, and through derivation, the change rate of the accelerator pedal is obtained; moreover, a wrong-pedaling-prevention protection system for the accelerator pedal of the novel battery electric vehicle can preset threshold values of three parameters of the vehicle distance, the vehicle speed and the change rate of the accelerator pedal to serve as safe driving critical values. The method has the excellent advantages that the distinguishing accuracy is very high, the system stability is high, redundant cost is not added, and the probability of the occurrence of traffic accidents is lowered.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a novel pure electric vehicle acceleration pedal protection method against misstepping. technical background [0002] At present, with the continuous improvement of people's living standards and the rapid growth of car ownership, traffic accidents are also increasing. According to NISSAN company reports, about 7,000 accidents in Japan every year are caused by drivers stepping on the brakes but accidentally stepping on the accelerator. According to statistics, accidents caused by stepping on the accelerator by mistake account for 12.6% of the total accident ratio. [0003] The patent application whose publication number is CN208216689U discloses a kind of automobile braking system, including brake pedal, bump, push rod, brake master cylinder, auxiliary piston, master piston, storage tank, spring, oil pipe, brake wheel cylinder, wheel Cylinder pistons, retur...

AI Technical Summary

Problems solved by technology

[0005] To sum up, the reasons for accidentally stepping on the accelerator

The car is designed to use the same foot to control the brake pedal and the accelerator pedal. When an emergency occurs during driving, such as an obstacle suddenly appearing in front, the driver or even the old driver is often highly nervous, and it is easy to turn the accelerator pedal in a panic. As the brakes are stepped on quickly, the vehicle will not stop, but will speed up rapidly, resulting in a very serious accident

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