›› 2012, Vol. 42 ›› Issue (04): 796-802.

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Integrated control for X-by-wire electric vehicle with 4 independently driven in-wheel motors

LI Gang1,2, ZONG Chang-fu1, CHEN Guo-ying1, HONG Wei1, HE Lei1   

  1. 1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2. College of Automobile and Traffic Engineering, Liaoning University of Technology, Jinzhou 121001, China
  • Received:2011-08-11 Online:2012-07-01 Published:2012-07-01

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Abstract: The integrated control for active steering (AFS), direct yaw moment (DYC) and active suspension (AS) of X-by-wire electric vehicle was studied based on the model predictive control theory to enhance the vehicle handling stability. Adopting the hierarchical integrated control structure, a model predictive controller was designed. The driving torque control allocation rules and AS control method were studied and the horizontal integrated control of AFS/DYC and the overall integrated control of AFS/DYC/AS were achieved. A simulation test was carried out to verify the proposed algorithm. The results show that the algorithm can make the vehicle follow the expectation effectively and enhance the vehicle stability in extreme conditions and its active safety.

Key words: vehicle engineering, in-wheel motor, electric vehicle, model predictive control, integrated control

CLC Number: 

  • U461.1
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