when the above driving stability control is not executed is the well known skyhook control the dampers 14 are controlled to increase the damping force when the sprung speed the upward direction is positive and the damper speed the expanding direction is positive are in the same direction while the dampers 14 are controlled to decrease the damping force when the sprung speed and the damper speed are in the opposite direction the sprung speed can be obtained by integrating the sprung acceleration sensed by the sprung acceleration sensor sa and the damper speed can be obtained by differentiating a damper displacement sensed by the damper displacement sensor sb with the above the embodiment of the present invention is explained but various changes of design can be applied to the present invention within a scope that does not depart from a gist of the invention for example in the embodiment the minimum speed of the damper speed vp used to change the characteristics of the map which is used to search the target current based on the damper speed vp and the target damping force ft is set to 0 014 m s but the value of the minimum speed may be varied appropriately also in the embodiment the driving stability control that suppresses the rolling of the vehicle based.