소형 전기자동차 카트의 주행성능 측정 및 수치해석

In new generation vehicle technologies, vehicles powered by electricity become much more important, by virtue of their emission merits. In addition, fuel cell is considered as a major source to generate the electricity for vehicles in near future. This paper focuses on modeling of an electric vehicle to estimate performances and design of an EV cart to verify the modeling. The EV cart is composed of DC motor. battery and PWM controller and their specitications are measured and applied to simulation. The numerical model is able to estimate vehicle speed, voltage, current, and sac from fundamental equations. Data from modeling and EV cart are compared in maximum speed mode and driving cycle mode. The profiles of voltage, current which is supplied to motor, and vehicle speed from the model show good agreement with vehicle tests but transition effects.