Distributed diagnostics architecture

US8600605B2 · kind B2 · utility

Assignees

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US
• Electric Data Systems Corporation · US

Inventors

• Daniel P. Grenn · Cadillac, US
• Marek L. Wilmanowicz · Pinckney, US
• Aniket Kothari · Rochester Hills, US
• Leonard G. Wozniak · Ann Arbor, US
• Rick H. Schroeder · Lapeer, US
• Andrew M. Zettel · Ann Arbor, US
• Peter E. Wu · Brighton, US
• Wei D. Wang · Troy, US
• Michael J. Taljonick · Davison, US
• Jayanthi Padmanabhan · Troy, US

Key dates

• Filing date: Sep 13, 2006
• Grant date: Dec 3, 2013
• Expiry date: Feb 2, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W50/029
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A distributed on-board diagnostic (OBD) architecture for a control system of a vehicle includes a plurality of control modules that are in communication with one another and a designated master OBD control module that is one of the plurality of control modules. The master OBD control module performs functions that a remainder of the plurality of control modules are incapable of performing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of the remainder of the plurality of control modules.