Method for activating a system for controlling and/or regulating operational sequences in a motor vehicle having several equal-access control units

US6728618B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hans Heckmann · Karlsruhe, DE
• Reinhard Weiberle · Lambach, DE
• Bernd Kesch · Hemmingen, DE

Key dates

• Filing date: Oct 23, 2002
• Grant date: Apr 27, 2004
• Expiry date: Oct 23, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2050/0045
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A system for controlling and/or regulating operational sequences in a motor vehicle having several equal-access control units for controlling and/or regulating certain functions in the motor vehicle. Control units each have a volatile memory, and a nonvolatile memory in which a loading routine is included. They are connected to one another via a time-controlled communications system. In order to create a safe and reliable activation of a system, it is proposed that at least one of the control units has a central memory, in which data required for the time-controlled communication are stored for all control units; one of the control units acts as temporary master control unit during an activating process of the system; during the activating process, the master control unit coordinates logging on of the remaining control units to the communications system, in particular transmission of the data from the central memory to the remaining control units via the communications system; and the master control unit ends the temporary master function upon the expiration of a predefinable time period or at termination of the activating process.