Patent ID: 6198387
Filing Date: 2001-03-06
Classification: B60R

Abstract:
A deployment control for a vehicular supplemental restraint, including a central sensor disposed in a central vehicle location providing a central acceleration signal, at least one remote sensor disposed in a peripheral vehicle location providing a peripheral acceleration signal, and a controller for deploying the restraint in a crash event based on said central and peripheral acceleration signals, the improvement wherein the controller:initializes a deployment threshold at a default level prior to the crash event;determines an event progression signal during the crash event based on the central acceleration signal;determines at least one secondary measure of crash severity during the crash event based on the peripheral acceleration signal;determines a threshold adjustment amount based on the determined secondary measure and the event progression signal;periodically adjusts the deployment threshold in accordance with the threshold adjustment amount; anddeploys the restraint when a measure of crash severity based on the central acceleration signal exceeds the deployment threshold.