Classifier various driving conditions

(57) Abstract: The device, it is possible to determine the various distinctive running state (K1, K2, K3), the occupant restraint system, it is possible to provide a specific operation algorithm for each class of the running state. The present invention has an acceleration sensor (BS), the apparatus for measuring the vertical axis direction of the acceleration of the vehicle (az). Here, if the measured acceleration (az) is exceeded 1g is a threshold, determines classifier running states (K1) on one side of the vehicle is lifted upward as during slope running (KL) is provided It is. When the measured acceleration (az) is between 0g~1g, the classifier (KL) decides traveling state (K2) on one side of the vehicle from falling down as time slopes running.