Speed control of electric vehicle using fuzzy logic controller

摘要

In this paper, the utilization of regenerative braking energy to control the speed of electric vehicle based on fuzzy logic controller is discussed. A fuzzy logic controller established is sugeno type. The output of motor controller of electric vehicle with fuzzy logic controller is acting as feedback to motor and improvement in speed of vehicle is observed. Under condition of stability and braking safety, the proposed strategy includes two types of braking force, one is regenerative and another one is frictional. So that a large amount of kinetic energy can be converted into electrical energy form and this electrical energy can be stored in the storage device like battery. This strategy is used to use the motor's regenerative braking characteristics. Modeling of FLC (fuzzy logic controller) is done under the MATLAB/Simulink software. Simulation was done with different cycles and FLC is examined with SOC (state of charge) of a battery, speed of motor and required force to drive vehicle.