1. Associate Professor, School of Automobile and Traffic Engineering, Jiangsu Univ., Zhenjiang 212013, P.R. China (corresponding author).
2. Master Student, School of Automobile and Traffic Engineering, Jiangsu Univ., Zhenjiang 212013, P.R. China.
3. Master, School of Automobile and Traffic Engineering, Jiangsu Univ., Zhenjiang 212013, P.R. China.