Method and signal processor for frequency analysis of time domain signals
Apparatus for preventing overturn
Signal processing system
Releasing circuit and checking circuit for a motor vehicle safety device
Procedure and system for detecting collisions and controlling safety
Vibration analyzing device
Extended response trigger circuit
ApplicationNo. 432139 filed on 11/03/1989
US Classes:701/47, By frequency or waveform analysis180/282, Responsive to sensing of acceleration, deceleration, or tilt of vehicle280/735, Electric control and/or sensor means307/10.1, Automobile340/436Of collision or contact with external object
ExaminersPrimary: Black, Thomas G.
Assistant: Auchterlonie, Thomas S.
Attorney, Agent or Firm
International ClassB60R 021/32
AbstractA method and apparatus is disclosed for controlling actuation of an air bag restraint system. The apparatus includes a sensor securable to the vehicle for providing a vibratory electric signal having various frequency components indicative of whether the vehicle is in a deployment condition. The particular frequency components indicative of an deployment condition are not present when the vehicle is in a non-deployment condition. A filter circuit is connected to the sensor for providing an electric signal having a value indicative of the value of the particular frequency components. An integrator provides a signal having a value indicative of the value of the vibratory electric signal. A summing circuit sums the value of the signal from the integrator and from the filter circuit. A signal generator provides the actuation signal when the signal from the summing circuit exceeds a predetermined value.
Field of SearchWITH MEANS FOR (1) PROTECTING MOTOR FROM IMPACT OF COLLISION, (2) UTILIZING MASS OF MOTOR TO ABSORB FORCE THEREOF, OR (3) PROTECTING OCCUPANT REGION OF VEHICLE FROM IMPACT-INDUCED SHIFTING OF MOTOR
WITH MEANS FOR PROMOTING SAFETY OF VEHICLE, ITS OCCUPANT OR LOAD, OR AN EXTERNAL OBJECT
Responsive to sensing of acceleration, deceleration, or tilt of vehicle
Responsive to vehicle condition
Electric control and/or sensor means
Ignition or starter circuits
Of collision or contact with external object
Internal alarm or indicator responsive to a condition of the vehicle