The collision at bottom of the vehicle Vehicle crossing the pit The vehicle falls or flies over the stairs If the vehicle is subjected to severe impact such as flying over a step, impacting a shoulder or a hard object, or crossing a deep pit, even if the deformation of the vehicle is slight, the vehicle component is affected by the rigidity, and the detected deceleration reaches the airbag deployment condition. The airbag may also unfold Impact on road shoulder or hard object 26