[Peng, Shijian; Liu, Peng] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China.
[Cao, Yuan-cheng; Zhang, Weixin; Li, Kuijie; Wen, Jinyu; Cheng, Shijie] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Wuhan 430074, Hubei, Peoples R China.
[Han, Xuebing; Li, Kuijie] Tsinghua Univ, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China.
[Wu, Weixiong] Jinan Univ, Energy & Elect Res Ctr, Zhuhai 519070, Guangdong, Peoples R China.