Method for data transfer in a restraint system connected to a bus line

US6449545B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Werner Nitschke · Ditzingen, DE
• Otto Karl · Leonberg, DE
• Joachim Bauer · Hamburg, DE
• Michael Bischoff · Brentwood, US
• Gunter Fendt · Schrobenhausen, DE
• Johannes Rinkens · Ingolstadt, DE
• Stefan Schaefer · Wetzlar, DE

Key dates

• Filing date: Dec 26, 2000
• Grant date: Sep 10, 2002
• Expiry date: Dec 26, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/01115
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A central control unit and a plurality of data processing units are connected to a bus line and are provided to control restraint devices. The central control unit sends query signals or control signals in the form of data telegrams to all or certain individual data processing units and the data processing units send response signals back to the central control unit in response to certain query signals or control signals. To permit a reliable allocation of query signals and control signals to data processing units and reliable acquisition of monitoring data of data processing units and their restraint devices, the query signals or control signals and the response signals are data telegrams, all of which have the same frame structure, having a first region with n control bits, a second region with m information bits and a third region with p check bits.