SUSPENSION CONTROLLER OF VEHICLE

PURPOSE: To remove a malfunction caused by the time of finish being too early or too late, by correcting the time of finish of control, according to the low frequency components of acceleration, or the magnitude of the acceleration immediately after start of control. CONSTITUTION: Based on each signal of a vertical acceleration sensors 21, a longitudinal acceleration sensors 21b, and a lateral acceleration sensor 21c provided, to detect the running condition of a vehicle, in a cab, a car speed sensor 23 arranged on the output shaft of, for example, a transmission, and a manual control switch 24 arranged at a driver's seat, the damping force of a hydraulic shock absorber for supporting the four points of the front and rear and right and left of the cab is increased or decreased. That is, when the acceleration value of the vibration that the road input gives the cab, detected by the acceleration sensor 21a, gets over the first specified value, the control on the pitch, the roll, or the comfort in driving, etc., of the cab is started. On the other hand, the acceleration value after start of the control is passed through a low-pass filter, and when the peak value of this acceleration falls under the second specified value, the control is finished.