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:
Jul. 10, 2012
Filed:
Jul. 01, 2008
Andrew D. Merrick, Lombard, IL (US);
James Beaucaire, Wheaton, IL (US);
Andrew D. Merrick, Lombard, IL (US);
James Beaucaire, Wheaton, IL (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
A method provides for transferring back-up data between on-board electronic modules of a vehicle. The presence of default parameters is sensed at a first electronic module during a running of the vehicle engine for an engine cycle. The current engine cycle accumulation register data is stored for the engine cycle in the first electronic module. A parameter and accumulation register data recovery routine is run wherein parameters and accumulation register data for the first electronic module are recovered from memory in the second electronic module on the vehicle and restored in the memory of the first electronic module. The information is transferred using SAE J1939 protocol. The first electronic module can be an engine control unit and the second electronic module can be a body controller. During a parameter and data back-up routine periodically run, the first electronic module stores current parameters and accumulation register data into memory of the second electronic module that will serve as back-up parameter and accumulation register data storage in the event the first module loses such parameters and accumulation register data.