The Analysis of Energy Consumption for an Electric Vehicle under Various Driving Circumstance

Abstract: This paper discusses the energy consumption for a mid-size electric vehicle(EV) under various conditions. In order to analyze which driving style is more efficient in terms of the system of the EV, we develop the electric vehicle model and apply several types of speed profiles such as different steady speeds, acceleration/deceleration, and a real world driving cycle including the elevation profile obtained from a GPS device. The results show that the energy consumption of the EV is affected by the operating efficiency of components when driving at low speed, while it depends on required power at wheels when driving at high speed. Also this paper investigates the effect of the elevation of a road and the rate of electrical braking on the energy consumption as well as the fuel economy of a conventional vehicle model under the same conditions. Key words: Electric vehicles(전 기 자동차), Energy consumption(에너 지 소모량), Real world driving cycle(실도로 주 행 사이클), Vehicle simulation(차 량 시뮬레이션), Fuel economy(연비), Fuel consumption(연 료 소모량