METHOD OF DESIGNING SUSPENSION DEVICE FOR VEHICLE, AND VEHICLE WITH SUSPENSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a suspension device for realizing a vehicle having high stability to a road surface disturbance.;SOLUTION: Respective roll steering coefficients A_F, A_R on a front wheel side and a rear wheel side of a target vehicle are determined based on roll rigidity distribution Kψ'_dis of the vehicle. Yaw behavior of the vehicle is suppressed based on the roll rigidity distribution Kψ'_dis relating stroke amounts ΔS_F, ΔS_R on the front wheel side and the rear wheel side to a road surface disturbance input. Concretely, a dynamic roll rigidity distribution Kψ'_act obtained by adding correction γ depending upon a degree of roll behavior delay to the roll rigidity distribution Kψ'_dis is matched with distribution Aeq_dis of equivalent roll steering coefficients Aeq_F, Aeq_R obtained by adding corrections δA_F, δA_R depending upon influence of roll camber B to the roll steering coefficients A_F, A_R to determine the respective roll steering coefficients A_F, A_R on the front wheel side and the rear wheel side.;COPYRIGHT: (C)2006,JPO&NCIPI