Artificial Intelligence Application’s for 4WD Electric Vehicle Control System

Abstract

A novel speed control design of 4WD electric vehicle (EV) to improve the comportment and stability under different road constraints condition is presented in this paper. The control circuit using intelligent adaptive fuzzy PI controller is proposed. Parameters which guide the functioning of PI controller are dynamically adjusted with the assistance of fuzzy control. The 4WD is powered by four motors of 15 kilowatts each one, delivering a 384 N.m total torque. Its high torque (338 N.m) is instantly available to ensure responsive acceleration performance in built-up areas. The electric drive canister of tow directing wheels and tow rear propulsion wheels equipped with tow induction motors thanks to their light weight simplicity and their height performance. Acceleration and steering are ensure by electronic differential, the latter control separately deriving wheels to turn at any curve. Electric vehicle are submitted different constraint of road using direct torque control. Electric vehicle are simulated in Matlab Simulink. The simulation results have proved that the intelligent fuzzy PI control method decreases the transient oscillations and assure efficiency comportment in all topologies road constraints, straight, curved road, descent.

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“…The speed of four wheels is calculated independently during the turning based on equal torque allocation strategy. Under the acceleration and steering condition, Nasri and Gasbaoui 18 presented a novel speed control design of four-wheel drive electric vehicle to improve the comportment and stability based on intelligent adaptive fuzzy proportional integral (PI) controller. Among them, the equal torque control allocation strategy is adopted for the left and right wheels during steering.…”

“…And these literatures only studied the steering of the ideal ordinary pavement and did not study the adaptability under the uneven road condition and the road condition of the adhesion coefficient mutation. (2) Literature 5,6,[16][17][18] mainly shows the different speed control of the left wheel and right wheel when steering based on the equal torque allocation control strategy. The equal torque allocation electronic differential control strategy has a certain advantage on the road with good adhesion coefficient.…”