International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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INTEGRATED VEHICLE CHASSIS CONTROL WITH A MAIN/SERVO-LOOP STRUCTURE

  • Li, D. (Institute of Automotive Engineering, Shanghai Jiao Tong University) ;
  • Shen, X. (Institute of Automotive Engineering, Shanghai Jiao Tong University) ;
  • Yu, F. (Institute of Automotive Engineering, Shanghai Jiao Tong University)
  • Published : 2006.12.01
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Abstract

In order to reduce the negative effects of dynamic coupling among vehicle subsystems and improve the handling performance of vehicle under severe driving conditions, a vehicle chassis control integration approach based on a main-loop and servo-loop structure is proposed. In the main-loop, in order to achieve satisfactory longitudinal, lateral and yaw response, a sliding mode controller is used to calculate the desired longitudinal, lateral forces and yaw moment of the vehicle; and in the servo-loop, a nonlinear optimizing method is adopted to compute the optimal control inputs, i.e. wheel control torques and active steering angles, and thus distributes the forces and moment to four tire/road contact patches. Simulation results indicate that significant improvement in vehicle handling and stability can be expected from the proposed chassis control integration.

Keywords

References

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