Prof. Junnian Wang
Department of Automotive Engineering, Jilin University, Changchun, Jilin, China
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Academic Career Length
19Years (2008-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 February 2011 in Mechatronics
Journal Article
1 October 2018 in IEEE Transactions on Vehicular Technology
Journal Article
Junnian WangZLZheng Luo
Zheng Luo
YWYan Wang
Yan Wang
BYBin Yang
Bin Yang
Farhad AssadianThe differential drive assist steering (DDAS) system improves the handiness of steering by torque difference between two-side wheels. However, the DDAS and the vehicle stability control (VSC) will interfere with each other due to the same actuators. This paper proposes a hierarchical coordination control approach for the DDAS and VSC. The system is divided into four layers: the parameter estimation layer, the control region division layer, the coordination decision layer, and the control allocation layer. In the control region division layer, the stable area is firstly determined on the $\beta - \dot{\beta }$ phase portrait, and the coordinated control region is obtained by applying the simulated annealing algorithm inwardly and outwardly to the boundary of the stable area. In the coordination decision layer, the direct control strategy of steering hand wheel torque is used to establish the controller of the DDAS based on the fuzzy adaptive PID algorithm. At the same time, the controller of yaw moment is established based on the sliding mode control theory. In the stable region, the DDAS works separately. The VSC works separately in the unstable region. In the coordination region, the Sigmoid function is used to adjust the weight coefficient of the DDAS dynamically. Besides, the control allocation layer includes torque distribution controller and vehicle slip ratio controller. Finally, the vehicle model is established in CarSim, the control strategy, and the wheel motor model are established in Simulink. The joint simulation results of several typical conditions show that the designed control strategy can improve the handling stability of the vehicle effectively while DDAS working even in severe driving condition.
1 August 2015 in Mechanical Systems and Signal Processing
Journal Article
XZXiaohua Zeng
Xiaohua Zeng
NYNannan Yang
Nannan Yang
Junnian WangDSDafeng Song
Dafeng Song
NZNong Zhang
Nong ZhangJLJianxin Liu
Jianxin Liu
+1
16 March 2024 in Control Engineering Practice
Journal Article
FTFei Teng
Fei TengJunnian WangLJLiqiang Jin
Liqiang Jin
ZWZhenyu Wang
Zhenyu Wang
ZZZidong Zhou
Zidong Zhou
ZLZhe Liu
Zhe Liu
24 March 2015 in International Journal of Automotive Technology
Journal Article
1 March 2017 in Energy Conversion and Management
Journal Article
BDBenming Duan
Benming Duan
QWQingnian Wang
Qingnian Wang
XZXiaohua Zeng
Xiaohua Zeng
YGYinsheng Gong
Yinsheng Gong
DSDafeng Song
Dafeng Song
Junnian WangAbout Me
Dr. Junnian WANG is currently a full professor with the National Key Laboratory of Automotive Chassis Integration and Bionics, and served as the Head of Department of Automotive Engineering, Jilin University. He also served as Youth Editorial Board Member for 5 Chinese journals, such as Journal of Traffic and Transportation Engineering, and Automobile Technology, as well as Editor of 5 international journals, such as Scientific Reports, and Designs. His research interests include vehicle dynamics control, advanced E-driveline design, energy management of electrified vehicles, Chassis-by-wire technology of autonomous vehicle.