Patent ID: 8036791
Filing Date: 2011-10-11
Classification: B60G

Abstract:
1. A vehicular damping force control device which changes and controls damping forces of shock absorbers disposed between a vehicle body and wheels, characterized by comprising: physical quantity detection device that detects a predetermined physical quantity which changes with turning of the vehicle body; posture-state-quantity detection device that detects an actual roll angle generated in a lateral direction of the vehicle body and an actual pitch angle generated in a longitudinal direction of the vehicle body; target-characteristic-changing-coefficient calculation device that calculates a target characteristic changing coefficient for changing a target characteristic in accordance with an actual characteristic of the vehicle body represented by the actual roll angle and the actual pitch angle detected by the posture-state-quantity detection device, the target characteristic representing a relation between roll angle and pitch angle for controlling rolling behavior of the vehicle body and determined such that the pitch angle changes quadratically with the roll angle; target characteristic changing device that changes the target characteristic by use of the target characteristic changing coefficient calculated by the target-characteristic-changing-coefficient calculation device; total-damping-force calculation device that calculates, on a basis of the target characteristic changed by the target characteristic changing device, a total damping force which must be cooperatively generated by left and right shock absorbers disposed on a front-wheel side of the vehicle and left and right shock absorbers disposed on a rear-wheel side of the vehicle; total-damping-force distribution device that distributes the total damping force calculated by the total-damping-force calculation device to the shock absorbers disposed on a turn-locus inner side and the shock absorbers disposed on a turn-locus outer side in accordance with the predetermined physical quantity detected by the physical quantity detection device; and damping force control device that changes and controls the damping forces of the shock absorbers on a basis of the damping forces distributed by the total-damping-force distribution device to the shock absorbers disposed on the turn-locus inner side and the shock absorbers disposed on the turn-locus outer side.