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

US7075898B2 · 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: Jan 5, 2001
• Grant date: Jul 11, 2006
• Expiry date: Jan 4, 2023

Classification

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

Abstract

A method for the exchange of data in messages between at least two users which are connected by a bus system, the messages containing the data being transmitted by the users via the bus system, and each user containing a predefinable and/or ascertainable timing mark; a first user, in a function as timer, controls 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, and if the timing mark of the second user is reached without a reference message of the first user reaching the second user, the at least second user takes over the function of timer by transmitting its own reference message with its own time information via the bus system.