Integrated control method and system for semi-active suspension system of whole vehicle

The invention provides an integrated control method and system for a semi-active suspension system of the whole vehicle. The method comprises the steps that lateral control vehicle parameters, longitudinal control vehicle parameters and the current vehicle speed are obtained; a threshold interval of vehicle parameters required for control is determined, a damping gradient interval corresponding to each control parameter is determined according to each threshold interval and damping gradient interval mapping data table, and a vehicle speed threshold corresponding to each damping gradient interval is acquired; if the current vehicle speed is greater than the threshold value, lateral and longitudinal control damping target values are obtained according to the vehicle speed and a damping mapping table; the damping target value with the larger numerical value is used as a side longitudinal control damping target value; and according to the obtained vertical control damping target value, the damping proportion valu