Control unit and acceleration sensor system

• US 20070079655A1
• Filed: 07/22/2004
• Published: 04/12/2007
• Est. Priority Date: 10/31/2003
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Frese, Volker, Wellhoefer, Matthias
• Granted Patent: US 7,653,468 B2
• Time in Patent Office: Days
• US Class Current: 73/514.160
• CPC Class Codes: B60R 2021/01027 Safing sensors
• CPC Class Codes: B60R 2021/0119 Plausibility check
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0133 by integrating the amplitude of the input signal
• CPC Class Codes: B60R 21/01336 using filtering

Abstract

Described is a control unit and an acceleration sensor system, the control unit having an electronic safety switch which, as a function of a signal of an acceleration sensor system, releases output stages for actuating passenger protection means independently of a processor and the processor actuates the output stages as a function of the signal. The safety switch analyzes an integrated acceleration signal.

Claims

1-5. -5. (canceled)

6. A control unit for actuating a passenger protection arrangement, comprising:

a processor; and

an electronic safety switch that, as a function of a signal of an acceleration sensor system, releases an output stage independently of the processor, the processor actuating the output stage as a function of the signal, wherein the safety switch analyzes an integrated acceleration signal as the signal of the acceleration sensor system.

7. The control unit as recited in claim 6, wherein the acceleration sensor system includes an integrator for integrating the integrated acceleration signal.

8. The control unit as recited in claim 6, further comprising:

a high pass filter for filtering the integrated acceleration signal.

9. An acceleration sensor system, comprising:

a housing; and

an integrator provided in the housing and for integrating an acceleration signal.

10. The acceleration sensor system as recited in claim 9, further comprising:

a high pass filter for filtering the acceleration signal.