Key Technologies for System Engineering of Electric Commercial Vehicles

The development of vehicles powered by novel energy sources has reached a worldwide consensus.In particular, purely electric vehicles have been identified as a national strategic emerging industry in China and a key field of the "China Manufacture 2025" program.This study reviews the history, technical roadmaps, and characteristics of the development of electric commercial vehicles in China.Based on the requirements of "zero-emission" and "24-hour uninterrupted and safe operation" borne from the Beijing Olympics, this paper proposes the concept of a systems engineering framework for electric commercial vehicles with three core components-the vehicular platform, battery charging/swapping stations, and operations monitoring.This study also introduces and investigates key technologies for these three components.Finally, this study discusses the main technical measures for improving the systems engineering of electric commercial vehicles to achieve a target of 5 million new energy vehicles by 2020 and operate at -25 °C during the Beijing Winter Olympics in 2022.The study aims to realize an electric commercial vehicle with superior performance and no technical defects that can be used without environmental restrictions.