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International Journal of Automotive Technology > Volume 19(2); 2018 > Article
International Journal of Automotive Technology 2018;19(2): 331-343.
doi: https://doi.org/10.1007/s12239-018-0032-1
LATERAL COLLISION AVOIDANCE ROBUST CONTROL OF ELECTRIC VEHICLES COMBINING A LANE-CHANGING MODEL BASED ON VEHICLE EDGE TURNING TRAJECTORY AND A VEHICLE SEMI-UNCERTAINTY DYNAMIC MODEL
Yufeng Lian1, Xiaoyu Wang2, Yantao Tian2, Keping Liu1
1Changchun University of Technology
2Jilin University
ABSTRACT
This paper presents a new control scheme for lateral collision avoidance (CA) systems to improve the safety of four-in-wheel-motor-driven electric vehicles (FIWMD-EVs). There are two major contributions in the design of lateral CA systems. The first contribution is a new lane-changing model based on vehicle edge turning trajectory (VETT) to make vehicle adapt to different driving roads and conform to drivers’ characteristic, in addition to ensure vehicle steering safety. The second contribution is vehicle semi-uncertainty dynamic model (SUDM), which is SISO model. The problem of stability performance without the information on sideslip angle is solved by the proposed SUDM. Based on the proposed VETT and SUDM, the lateral CA system can be designed with robust controller to restrain the effect of uncertainties resulting from parameter perturbation and lateral wind disturbance. Single and mixed driving cycles simulation experiments are carried out with CarSim to demonstrate the effectiveness in control scheme, simplicity in structure for lateral CA system based on the proposed VETT and SUDM.
Key Words: Lateral Collision Avoidance (CA) system, Lane-changing model, Semi-Uncertainty Dynamic Model (SUDM), Vehicle Edge Turning Trajectory (VETT)
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