Anyone who drives a car knows that when driving a car at high speed, if you turn quickly, you may turn over, especially when driving a large truck or bus. This phenomenon is more likely to happen when it is fully loaded, because at this time, turning will produce centrifugal force, which acts on the center of mass of the car. The greater the mass, the greater the inertia and centrifugal force. At the same time, for some reasons, the automobile may be subjected to lateral forces, which are mainly in the lateral direction of the automobile.