1. Shenzhen Key Laboratory of Urban Rail Transit, College of Mechatronics and Control Engineering, Shenzhen UniversityShenzhen518060People's Republic of China
2. Department of Mechanical EngineeringUniversity of VictoriaVictoriaBCV8W 3P6Canada
3. College of Automation, South China University of TechnologyGuangzhou510641People's Republic of China
4. School of Electrical Engineering and Information, Anhui University of TechnologyMa’anshan243000People's Republic of China