Collision sensing system for side air bag system

摘要

A collision sensing system for a side air bag system comprises door opening state detector and air bag actuation inhibiter for inhibiting the actuation of an air bag when the door opening state detector detects the open state of a side door. Thus, it is possible to prevent any unnecessary inflation of the air bag at a time of non-collision as in case the side door is opened to hit a pole or the like. If the air bag actuation inhibiter is constructed to inhibit the actuation exclusively of the air bag, which is disposed at a side door opened when a collision sensor detects a collision, it can allow the air bags of the remaining shut doors to operate normally. If, on the other hand, the air bag actuation inhibiter is constructed to inhibit the actuation of a air bag for a predetermined time period after the side door is shut, it can inhibit the actuation of the air bag even with shocks being caused at the time of shutting the side door. If, moreover, the door opening state detector is constructed to inhibit the subsequent actuation of the air bag continuously in case it detects the open state of the side door when the collision sensor detects a collision, it can inhibit the air bag actuation to prevent any useless inflation of the air bag even if it detects the shut state of the side door while the collision sensor being ON when the door is later closed.