吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊2): 59-64.

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Research on integrated control strategy of ride and roll attitude via active suspension

CHEN Shuang1, ZONG Chang-fu1, ZHANG Li-jun2, YIN Gang3   

  1. 1. State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China;
    2. College of Automotive and Transportation, Liaoning University of Technology, Jinzhou 121000, China;
    3. Institute of Automotive Engineering, Chang'an Aut
  • Received:2010-03-04 Online:2011-09-30 Published:2011-09-30

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Abstract:

Aiming to vehicle steering maneuver,linear quadratic gauss control method of ride and roll attitude via active suspension is designed at first.Then an integrated control strategy which combines linear quadratic optimum control law with fuzzy control algorithm is put up.The reference model which is able to represent both ride and handling performance and have nine degrees of freedom is built up.By matlab/simulink simulation,integrated control strategy is assessed in an open-loop J-turn and Sine-steer driving scenario on a random-rough road.The performances of active suspension with integrated control are compared with the one of active suspension with linear quadratic gauss control and passive suspension.The results indicate that integrated control strategy combining linear quadratic gauss control and fuzzy control can decrease body roll angle more adequately and optimize body attitude on the basis of linear quadratic gauss control effect,which improve ride comfort and handling quality simultaneously.

Key words: vehicle engineering, active suspension, linear quadratic gauss control, fuzzy control, integrated control

CLC Number: 

  • U463.33


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