Modeling and Simulation of Three-Wheeler Hybrid Electric Vehicle using MATLAB Simulink SimScape

Abstract

Three-wheeler hybrid electric vehicles have become a popular due to their improved fuel efficiency and reduced emissions. However, these three-wheeler hybrid vehicles present a unique set of technical specifications and requirements, and the process of training the drivers and mechanics of these vehicles can be both costly and time-consuming. Thus, in this thesis, three-wheeler hybrid electric vehicle model is developed using MATLAB Simulink based on the real-world three-wheeler vehicle specification for parallel mode using SimScape driveline to simulate their dynamics. The model includes battery, DC-DC converter, electric motor, combustion engine, gearbox, and vehicle body. The model is developed for 3 kW engine, AC induction motor of 5 kW, and Lithium-ion battery of 48 V. The model is simulated for accelerate and decelerate condition for 3600 seconds run time. The model has the ability to simulate the shaft speed of both the combustion engine and electric motor, power of battery and engine, electrical losses of both battery and electric motor. Therefore, in parallel mode hybrid electric vehicle model, the vehicle speed and engine power have inverse relation, and the vehicle speed and battery or motor power have direct relation. Moreover, as the vehicle speed increases by 4.63%, the battery power increases by 127%. Whereas, as the vehicle speed increases by 4.63%, the engine power decreases by 25.8%. Furthermore, as the vehicle speed increases total electrical loss increases. Whereas, as the vehicle speed decreases total electrical loss decreases. This indicates the electrical power loss of battery and motor for hybrid electric vehicle is more in acceleration than deceleration.