고도 변화를 포함하는 Driving Cycle에 대한 배터리 교환형 전기버스의 에너지 소비량 분석

다국어 초록 (Multilingual Abstract)

Eminent changes of worldwide climate patterns due to rapid acceleration of global warming process warns the world to reduce the production of greenhouse gas such as CO₂ in one way or another. Many studies for the major sources of CO₂ have indicated that the automotive industry is one of the major responsible party. With such results, automotive researchers have made great efforts to alleviate the dependency on the hydrocarbon based fuels to reduce the CO₂ production by using alternative fuels or electricity. Among many techniques, electric vehicles attracts huge attention with rapid developments in power electronics and motor technologies as well as a battery technology. While the main electric powertrain technologies such as the power inverter, the motor controller and the traction motor make solid progress, the battery technology is still struggling to provide dependable energy storage system for the electric vehicle. With an obvious megatrend of urbanization, a public transportation system plays an important role in the efficient use of the transportation energy. A battery swappable smart electric bus has been developed to address this public needs as a one of the solution.
In this paper, energy consumption of the battery swappable smart electric bus was studied in the real world driving condition with altitude variations. Energy simulations for the driving cycle obtained from the real experiment were performed with and without the grade change information. Furthermore, the comparison between the simulation results and the experimental results to highlight the importance of the use of driving cycles with the elevation changes.