Abstract
In order to study man-machine engineering problem with vehicle simulator, a steering control simulation system was designed. The mechanical structure and working process of this system was illustrated. The system model was build, according to low frequency working condition, parameter identification experiment was made to obtain amplitude ratio and phase lag in different frequency. Least square method was used to fit transfer function and frequency response was analyzed. Aligning and steering experiment was set to test this system. The result indicates that steering wheel aligns to zero position in 1 s without oscillation, aligning performance is good and meets the needs of vehicle simulator, torque measured by this system and simulated from transfer function shows great consistency, the transfer function can be applied to control this system. Setting different resistance torque can make research on driver comfort and vehicle handling stability, besides provide some help for power steering, steer-by-wire system design.
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