现有车辆的车体,如图1所示,空气弹簧等弹性元件2教在其重心上方与P点同高处,由支承在摇枕3上的空气弹簧2使卓体1产生摆动。假如在具有这种悬挂装置的车体上作用以横向力,则由于其值为加速度和点P与重心G之间长度Lg的乘积的力矩的作用, The body of the existing vehicle, as shown in FIG. 1, the elastic element 2 such as an air spring is taught to be at the same height as the P point above its center of gravity. The air spring 2 supported on the bolster 3 causes the body 1 to swing. If a lateral force is applied to a vehicle body having such a suspension device, due to the effect of a moment whose value is the product of the acceleration and the length Lg between the point P and the center of gravity G,