New approach of energy management in electric vehicle

Electrical vehicle has the advantage of being friendly with environment but it does not have yet same performance as a current conventional vehicle. This work, propose strategy to improve the autonomy of electrical vehicle; at first, a model of electrical vehicle which combine lead acid batteries and DC motor is described. Moreover, control speed strategy used fuzzy logic is applied to the system to produce a maximum speed reference of EV under different state of charge of the battery and acceleration. Then, proportional integral control adjusts speed strategy. For different scenario, simulation is realized in MATLAB/Simulink show good efficiency.