Funding for this research was provided by:
‘Chunhui Plan’ Cooperative Research for Ministry of Education (Z2016133)
Scientific Research Fundation of the Education Department of Sichuan Province (16ZB0163, 17ZA0364)
National Natural Science Foundation of China (11402214)
Open Research Fund of Key Laboratory of Automobile Engineering(Xihua University), Sichuan Province (szjj2016-017)
the Open Research Subject of Artificial Intelligence Key Laboratory of Sichuan Province (2017RYJ03)
the Open Research Fund of Key Laboratory of Numerical Simulation of Sichuan Province (2017KF004)
the Open Research Fund of Key Laboratory of Automobile Measurement and Control & Safty of Sichuan Province (szjj2017-074)
Article History
Received: 4 September 2017
Accepted: 28 December 2017
First Online: 15 January 2018
Competing interests
: The authors declare that they have no competing interests.