SUSPENSION SYSTEM FOR VEHICLE

In a suspension system including a shock absorber having a damping-force changing mechanism for changing a magnitude of a damping force with respect to a relative movement of a sprung portion and an unsprung portion, the shock absorber being configured to generate the damping force with respect to the relative movement of the sprung portion and the unsprung portion such that the damping force is changeable, a target sprung speed v s * which is a target of a speed of the sprung portion based on a steering operation, an accelerating operation, or a braking operation each off which is an operation input to the vehicle by a driver, and the damping force (damping coefficient ¶) is controlled such that the speed of the sprung portion becomes equal to the target sprung speed v s * .