Method and device for generating at least one feature for an occupant protection system

• US 8,060,279 B2
• Filed: 08/02/2006
• Issued: 11/15/2011
• Est. Priority Date: 09/20/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Stuetzler, Frank Juergen, Koehler, Armin, Schuller, Hermann, Brandenburger, Sabine
• Primary Examiner(s): Dickson; Paul N.
• Assistant Examiner(s): GOODEN JR, BARRY J
• Application Number:
  US11/992,273
• Publication Number:
  US 20090177358A1
• Time in Patent Office: 1,931 Days
• Field of Search: 701/45, 701/42, 701/46, 701/47, 280/734, 280/735, 180/282, 307/9.1, 307/10.1
• US Class Current: 701/45
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value
• CPC Class Codes: B60R 21/0133 by integrating the amplitude of the input signal

Abstract

A method is described for generating at least one feature for an occupant protection system, which is determined from at least one basic feature and analyzed for generating a triggering signal for an occupant protection device, and a corresponding device. During normal operation, at least one short-term window integral is calculated from the at least one basic feature and used as a starting value for calculating a corresponding long-term integral when a starting condition for a crash operation obtains, the at least one long-term integral being made available to a following method as a feature for generating the triggering signal for the occupant protection system.

Claims

1. A method for generating at least one feature for an occupant protection system, the method comprising:

determining the at least one feature from at least one basic feature;

analyzing the at least one feature to generate a triggering signal for an occupant protection device; and

determining, during a normal operation, at least one short-term window integral from the at least one basic feature, which is used as a starting value for determining a corresponding long-term integral when there is a starting condition for a crash operation, the corresponding long-term integral being made available to a following process as the at least one feature for generating the triggering signal for the occupant protection device.

2. The method of claim 1, wherein the starting condition for crash operation is determined from the at least one basic feature.

3. The method of claim 1, wherein the corresponding long-term integral is fed back to generate a system reset signal, and the system reset signal resets all system components into a starting state.

4. The method of claim 1, wherein the at least one generated feature corresponds to at least one of a deceleration and an occupant forward displacement, which are determined from a detected acceleration signal as the basic at least one feature.

5. The method of claim 1, wherein during crash operation, the at least one basic feature is monitored, and wherein a restoration procedure for the corresponding long-term integral is triggered to restore the occupant protectant system from the crash operation to the normal operation based on the monitored at least one basic feature dropping below a predefined threshold value.

6. The method of claim 5, wherein the corresponding long-term integral is restored using a reducing factor.

7. The method of claim 6, wherein the reducing factor is variably set in a range from 0 to 1 as a function of an executed application.

8. A device for generating at least one feature for an occupant protection system, comprising:

at least one sensor to detect at least one basic feature; and

an analyzer and control unit to analyze the at least one basic feature and generating the at least one feature and outputting the at least one feature for generating a triggering signal for an occupant protection device;

wherein during normal operation, the analyzer and control unit determines at least one short-term window integral from the at least one basic feature and uses the determined short-term integral as a starting value for determining a corresponding long-term integral when there is a starting condition for a crash operation, and wherein the analyzer and control unit make the corresponding long-term integral available to a following process as the at least one feature for generating the triggering signal for the occupant protection device during the crash operation.