Safing method for a vehicle occupant protection safety system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 4, 2003
Grant Date -
Nov 1, 2001
app pub date -
Mar 29, 2001
filing date -
Apr 3, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vehicle occupant protection activation system includes a satellite sensor which communicates with a safety controller for controlling each safety system. If a heightened likelihood of a vehicle crash or roll-over condition exists, the satellite sensor sends a safing message to the safety controller. When the safing message is received by the safety controller, it responds to the satellite sensor with a safing response including a seed message therein. The seed message is temporarily stored in the safety controller and is also stored by the satellite sensor. If it is determined that the event requires deployment, the satellite sensor sends a deploy command to the safety controller that includes the seed message therein to authenticate the command. The safing controller is thus assured that the deploy command is authorized and inadvertent deployment due to a single point fault in the satellite sensor is prevented.
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