吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 21-27.doi: 10.13229/j.cnki.jdxbgxb201701004

• Orginal Article • Previous Articles     Next Articles

Active return control based on imaginary king-pin kinematics calculation

DING Jin-quan, XU Nan, GUO Kong-hui   

  1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022,China
  • Received:2015-12-18 Online:2017-01-20 Published:2017-01-20

Abstract:

According to the structure characteristics of multi-link suspension mechanism, the kinematics characteristics of the imaginary kingpin in steering process was analyzed. The theorem of instantaneous screw axis was employed to calculate the movement and the caster offset of the imaginary kingpin. An active return control strategy was proposed and used to compensate the reduced aligning torque caused by the movement of the imaginary kingpin and load transfer. The results show that, using the active return control strategy based on imaginary kingpin kinematics calculation, the return-to-center performance of the vehicle was improved.

Key words: vehicle engineering, multi-link suspension, imaginary kingpin, kinematics calculation, active return control

CLC Number: 

  • U461.6
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