The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
Feb. 06, 2012
Shengbing Jiang, Rochester Hills, MI (US);
Katrina M. Schultz, Clarkston, MI (US);
Kenneth P Orlando, Sterling Heights, MI (US);
Shengbing Jiang, Rochester Hills, MI (US);
Katrina M. Schultz, Clarkston, MI (US);
Kenneth P Orlando, Sterling Heights, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of detecting and mitigating an unintended active state of an in-vehicle communication network. The in-vehicle communication network includes a plurality of electronic control units (ECUs) communicating over a controller area network bus system. Each ECU includes both transmitting and receiving capabilities, and is configured with a communication protocol that provides guidelines for exchanging messages with other ECUs within the communication system. Each ECU enters a communication kernel active state for communicating on the bus. Virtual networks within the communication system are identified. Each virtual network includes a collection of signals involving respective ECUs whose transmission and reception are started and stopped collectively as a unit. Each respective virtual network that is active by fault is detected. Each faulty active virtual network is deactivated.