Design and Research of Push Rod Suspension Under the Consideration of Active Assistant Shock Absorb System
By establishing the push-rod suspension model of the vertical shock absorber,the suspension stiffness and matching damping characteristics are calculated accurately by the suspension force transmission model.The calculation of the stability of the whole vehicle shows that the FSAEracing car has serious sideslip and tail swing problems using the push-rod suspension struc-ture of the longitudinal suspension spring.Aiming at this problem,a design idea,model structure and double fuzzy control algo-rithm for adding an active auxiliary shock absorber system in the opposite direction of the swing arm of the rotating support are proposed.The design is to change the vibration characteristics of the body by inhibiting the motion range of the swing arm,and the play a important role in lateral stability.Results showed that the acceleration performance of vehicle body pitching angle was improved by 89.3%,the acceleration performance of lateral inclination Angle was improved by 79.3%,the acceleration perfor-mance of yaw Angle was improved by12.1%,and the acceleration performance of vertical acceleration was improved by 50.8%.
Spring StiffnessShock Absorb DampingStability ConditionsActive Auxiliary Suspension System
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