Performance analysis of battery E-vehicle system using open loop and closed loop application

Abstract

Electric vehicle (E-vehicle) will be an alternate transportation vehicle in this world due to unavailability of fossil fuel. The CO2 emissions from fossil fuel based vehicle have been considerably reduced. In this study, E-vehicle has been modelled for both open loop and closed loop using MATLAB/Simulink. The rechargeable lithium-ion battery has been adopted for proposed system, and it has become prominent energy storage device especially for E-vehicle application. Speed sensor has been incorporated in closed loop system. Speedometer also added in both open and closed loop system. Performance of the E-vehicle has been analysed and compared by ratio of output to input motor power. Error deviation has been estimated. The simulation results of closed loop system have been revealed that better stability in dynamic state of input. The proposed closed loop system has been attained the better efficiency than open loop and, moreover fluctuation and harmonic level were within the tolerance level. Through closed loop system, E-vehicle has been attaining the smooth working state at minimum duration than open loop. The E-vehicle parameters such as vehicle speed, travelling distance, torque, efficiency and output power have been estimated for both open and closed loop system. With help of sensor, performance of the closed loop system has been improved.