Method and apparatus for sensing a vehicle crash with frequency domain boost
November 3, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3762495 3870894 3911391 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 InventorsAssigneeApplicationNo. 432139 filed on 11/03/1989US 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 objectExaminersPrimary: Black, Thomas G.Assistant: Auchterlonie, Thomas S. Attorney, Agent or FirmInternational ClassB60R 021/32AbstractA 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.Other References
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 MOTORWITH 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 Automobile Ignition or starter circuits Battery protection Of collision or contact with external object Internal alarm or indicator responsive to a condition of the vehicle | |
