×

Method and apparatus for controlling an actuatable restraint device using a side pressure sensor

  • US 8,406,959 B2
  • Filed: 02/20/2009
  • Issued: 03/26/2013
  • Est. Priority Date: 02/20/2009
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for controlling an actuatable occupant restraint device of a vehicle, said apparatus comprising:

  • a central crash acceleration sensor for sensing crash acceleration in a direction generally perpendicular to a longitudinal axis of the vehicle at a central vehicle location and providing a first crash acceleration signal indicative thereof;

    a side pressure sensor for sensing pressure in a chamber disposed at a side of the vehicle and providing a side pressure signal indicative thereof; and

    a controller for actuating the actuatable occupant restraint device in response to the first crash acceleration signal and the side pressure signal,said controller (a) determining a first acceleration value from a moving average of absolute values of the first crash acceleration signal, (b) determining a change in pressure value comprising a change in pressure in said chamber determined from the side pressure signal, and (c) actuating said actuatable occupant restraint device when both said determined first acceleration value exceeds a first threshold and said determined change in pressure value exceeds a second threshold.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×