[1] Southwestern Jiaotong Univ, Tract Power State Key Lab, Chengdu, Sichuan, Peoples R China
[2] Southwestern Jiaotong Univ, Intelligent Control & Simulat Res Ctr, Chengdu, Sichuan, Peoples R China
[3] Southwestern Jiaotong Univ, Inst Adv Design & Mfg, Chengdu, Sichuan, Peoples R China