1. Department of Automotive Engineering, Chongqing University, Chongqing, China
2. School of Economics and Business Administration, Chongqing University, Chongqing, China
3. Department of Automotive and Mechatronics Engineering, Ontario Tech University, Oshawa, ON, Canada
4. Department of Energy Technology, Aalborg University, Aalborg, Denmark
5. Mechanical Engineering Department, Center for Advanced Life Cycle Engineering, University of Maryland, College Park, MD, USA