PURPOSE: To prevent giving a feeling of nonconformity regarding the behavior of a vehicle body under roll rigidity control while the vehicle makes a turn.
CONSTITUTION: A suspension is provided with a variable damping force shock absorber, and a target yaw rate YO is calculated (step S32) according to a detected value V of vehicle velocity and a detected value 63 of steering angle, and when the target yaw rate is not more than a set value YOS, front and rear wheel side damping-force control gains FF and FR are reset to '0', thus performing skyhook control for the variable damping force shock absorber according to pitch speed and relative speed. When the target yaw rate exceeds the set value YOS, front and rear wheel side delay time ΔT1 and ΔT2 are calculated according to the detected value V of vehicle velocity and the detected value θS of steering angle, and a yaw-rate correction YT is calculated according to a yaw-rate feedback control gain (step S39-S40), and front and rear wheel side delay time tF and tR by which high damping forces are applied to front and rear turning outer wheels are calculated (step S42) according to the delay time ΔT1 and ΔT2 and the correction YT, and the damping force is witched accordingly.
Next Patent: 測定装置におけるドリフト減少装置