Patent · US Active

Method for monitoring at least two microcontrollers

US9104570B2 · kind B2 · utility

2Cited by

0References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Sandeep Bisht · Reutlingen, DE
Jochen Weber · Laufenbürg, DE
Andreas Heyl · Ludwigsburg, DE

Key dates

Filing date	Sep 8, 2011
Grant date	Aug 11, 2015
Priority date	—
Expiry date	Mar 9, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/25158
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for monitoring at least two microcontrollers using a watchdog is described. The watchdog is associated with a first microcontroller and monitors the communication of a message from the first microcontroller within a time interval of a predefined duration. The message communicated to the watchdog by the first microcontroller contains a contribution which is formed on account of communication between the first microcontroller and a second microcontroller connected to the latter and on the basis of which the watchdog checks the proper method of operation of the second microcontroller. The disclosure also describes a circuit arrangement and a battery with a battery management unit which are configured to carry out the method according to the disclosure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.