Acknowledgment
The fund for this work was supported by three
projects: the National Science-Technology Support Plan
Projects (12th Five-Year Plan) of China (Grant No.
2011BAD20B09), the Development Programme of
Science and Technology of Jilin Province of China
(Grant No. 20116026), and the National 985 Project of
Jilin University. These financial supports are gratefully
acknowledged. Also, we highly appreciate the
MATLAB software support by Mr. Jun Wang, Ph.D.
student, State Key Laboratory of Automotive Simulation
and Control, Jilin University, Changchun, P. R. China.
Meanwhile, thanks are due to Mr. Xin Lu, M.Sc. student
of our laboratory, for assistance with instrument debugging.