Method and device for the exchange of data between at least two users connected to a bus system

US7898987B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Andreas Weigl · Linkenheim-Hochstetten, DE
• Thomas Fuehrer · Ditzingen, DE
• Bernd Müller · Moers, DE
• Florian Hartwich · Reutlingen, DE
• Robert Hugel · Kaufering, DE

Key dates

• Filing date: May 16, 2006
• Grant date: Mar 1, 2011
• Expiry date: Jul 29, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J3/0641
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method for exchanging data in messages between at least two users connected by a bus system, where each of the at least two users includes a predefinable and/or ascertainable timing mark, includes causing the at least two users to transmit, via the bus system, messages including the data. The method also includes causing a first user, in a function as timer, to control the messages as a function of time in such a way that it repeatedly transmits a reference message, which contains time information of the first user, via the bus at a specifiable time interval. Further, if the timing mark of the second user is reached without a reference message of the first user reaching the second user, the second user is caused to take over the function of timer by transmitting its own reference message with its own time information via the bus system.