Patent ID: 7997613
Filing Date: 2011-08-16
Classification: A41D,B60R,B62J

Abstract:
1. A motorcycle passenger protecting system for cushioning an external impact against a passenger, said system comprising: an air bag disposed so as to expand and spread between a passenger seat and a steering handle of a motorcycle; an air bag jacket for wear of the passenger; a plurality of impact sensors adapted to provide outputs in response to an impact given to the motorcycle concerned from the exterior; collision predicting means for predicting a collision; and collision determination means for determining a collision on the basis of whether or not a deceleration and an impact degree both obtained on the basis of the outputs of the impact sensors are not smaller than respective threshold values, wherein the collision determination means selectively operates only one of the air bag and the air bag jacket in accordance with the output of each of the plurality of impact sensors upon determination of the collision, and a collision stand-by determination mode or a normal collision determination mode is selected on the basis of whether the collision was predicted or not by the collision predicting means, then the threshold values of the deceleration and the impact degree are switched over in accordance with the selected determination mode.