Numerical control four-wheel-drive electric controlling system and method

Abstract

The invention provides a numerical control four-wheel-drive electric controlling system comprising a steering angle coder, a speed given coder, five servo drivers, five alternating current servo motors and an industrial personal computer. The steering angle coder is used for collecting the steering angle and the steering speed of a vehicle; the speed given coder is used for collecting the target driving speed of the vehicle; the industrial personal computer determines to output five-path pulse signals to be sent to the five corresponding servo drivers according to the received steering angle, steering speed signals and target driving speed signals; the five servo drivers control operation of the five alternating current servo motors correspondingly; four of the five alternating current servo motors provide power for four hubs of the vehicle, and one of the five alternating current servo motors provide power for steering assist; and during vehicle driving, the four hubs has power output all the time, the four hubs operate synchronously at the time of straight driving, and the four hubs conduct speed interpolation according to the steering track at the time of steering driving. Smooth driving of the vehicle is guaranteed, and the safety of vehicle driving is improved.

Description

technical field [0001] The invention relates to the technical field of four-wheel drive control, in particular to a numerically controlled four-wheel drive electric control system and method. Background technique [0002] Electric vehicles not only conform to the development trend of energy conservation and environmental protection stipulated by the state, but also greatly facilitate short-distance transportation. The most important thing is to save and protect energy and the environment, and play an important role in the national economy. [0003] Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, an electric vehicle is a vehicle that uses a battery as an energy source, and converts electrical energy into mechanical energy through controllers, motors and other components to control the current and voltage to change the speed. [0004] However, the current four-wheel drive vehicle cannot lock the differential lock when driv...

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Problems solved by technology

[0004] However, the current four-wheel drive vehicles cannot lock the differential lock whe

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