Control device for a restraining system in a motor vehicle

US7137645B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hartmut Schumacher · Freiberg, DE
• Peter Taufer · Renningen, DE
• Torsten Grotendiek · Bietigheim-Bissingen, DE
• Harald Tschentscher · Bornsteiner Straße, DE
• Werner Weber · Munich, DE

Key dates

• Filing date: Oct 19, 2001
• Grant date: Nov 21, 2006
• Expiry date: Oct 29, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/01286
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control device for a restraining system in a motor vehicle is proposed, a safety switch, which also includes a watchdog, performing the function of a safety switch in the control device. The safety switch monitors sensor signals which are transmitted to the processor of the control device for plausibility and triggers appropriate restraining systems via a time unit for a predefined time period only when the safety switch itself detects a trigger event. On the basis of supplementary data from the sensor signals, the safety switch infers how the sensor signals are to be processed. The safety switch is designed such that it triggers the restraining systems correspondingly assigned to the sensors. When the control device is switched on, the processor performs a test of the safety switch by generating a test signal using the sensors.