1. School of Transportation Science and Engineering Beihang University Beijing 100191 China
2. Advanced Technology Institute University of Surrey Guildford Surrey GU2 7XH UK
3. School of Automotive Engineering Harbin Institute of Technology at Weihai Weihai Shandong 264209 China
4. Department of Mechanical Engineering Imperial College London London SW7 2AZ UK
5. Dyson School of Design Engineering Imperial College London London SW11 8EX UK
6. Department of Earth Science and Engineering Imperial College London London SW7 2AZ UK