Method and device for determining displacement and load of suspension

The invention belongs to the field of computers, and discloses a method and a device for determining displacement and load of a suspension. The method comprises the steps that power assembly inertia data, speed ratio data of a transmission, the maximum engine torque and suspension data of suspension are obtained; determining the gravity and the power assembly torque of the power assembly system under each working condition according to the calculation formula of the gravitational acceleration and the power assembly torque under each working condition of the inertia data of the power assembly, the speed ratio data of the transmission, the maximum engine torque and the GM28 working condition load; constructing a multi-body dynamic model according to the inertial data and the suspension data of the power assembly; in response to the creation instruction, creating an analysis step of each working condition; in response to a second parameter adding instruction, adding gravity and power assembly torque to the analy