Method and system for selecting and regulating speed of electric car

Abstract

The invention relates to a method and system for selecting and regulating the speed of an electric car. The provided system for selecting and regulating the speed of the electric car comprises a whole car controller, a selected speed recognition system, a wheel speed sensor set, distance sensors arranged in the front portion and rear portion of the car, a driving motor controller and a brake controller. The selected speed recognition system, the wheel speed sensor set, the distance sensors, the driving motor controller and the brake controller are connected with the whole car controller. The driving motor controller is further connected with a driving motor. The brake controller is further connected with a brake. According to the method and system for selecting and regulating the speed of the electric car, in the electric car driving process, the car can be easily and safely driven simply by pressing a button several times, the situation that a driving hand lever or acceleration and brake pedals are frequently and complexly operated is avoided, easy and safe driving is achieved, sitting comfort is improved, energy is saved, and the service life of the whole car is prolonged. An intelligent voice control system of the system is a safe auxiliary system, and a driver and passengers can directly control the car to be emergently stopped with voices when necessary.

Description

technical field [0001] The invention relates to a speed selection and speed regulation method of an electric vehicle and a system thereof. Background technique [0002] At present, in order to improve the urban environment and promote energy saving and consumption reduction, the state and local governments have issued many policies to stimulate the development of electric vehicles and electric construction machinery. Electric vehicles have attracted the attention of many local governments and people with low noise, low energy consumption and low emissions, and attracted many enterprises to invest in the construction and manufacture of electric vehicles, prompting the emergence of various pure electric vehicles in China, and the number is also showing a rapid development trend. It is the traditional driving force in the future. The inevitable replacement for the vehicle. Compared with traditional power vehicles, electric vehicles can have more convenient speed regulation fun...

AI Technical Summary

Problems solved by technology

Compared with traditional power vehicles, electric vehicles can have more convenient speed regulation function and maneuverability, which can better reduce the labor intensity of the driver, and at the same time require longer trouble-free working time or mileage. Due to the short commercialization time, domestic research and development The driving of electric vehicles on the market has not been greatly improved, and the time for the first failure of the vehicle nee

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