A method and apparatus for restricting pivoting of an industrial vehicle
axle and maintaining the vehicle stability without sacrificing the
vehicle's driving performance. Pivoting of the axle with respect to the
vehicle's body is temporarily restricted in accordance with the yaw
acceleration when the vehicle is turned. The acceleration value for
limiting restriction is varied in accordance with the stability of the
vehicle, which is determined by the state of the carried load. The limit
value is relatively high when the load state causes the vehicle to be
relatively stable and is relatively low when the load state causes the
vehicle to be relatively unstable.