[Hao, Shuai;Huang, Zhiwu;Wang, Lulu;Zhang, Rui;Zhang, Xiaoyong;Peng, Jun] Cent S Univ, Sch Informat Sci & Engn, Changsha 410083, Hunan, Peoples R China.^[Hao, Shuai;Huang, Zhiwu;Wang, Lulu;Zhang, Rui;Zhang, Xiaoyong;Peng, Jun] Hunan Engn Lab Rail Vehicles Braking Technol, Changsha 410083, Hunan, Peoples R China.^[Yu, Wentao] Cent South Univ Forestry & Technol, Sch Comp & Informat Engn, Changsha, Hunan, Peoples R China.