Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Edward Longnecker0
Marleen F. Thompson0
Richard M. Avery, Jr.0
David Lawrence Hasfjord0
Dennis Michael Letang0
Donald M. McDonald0
Ian Daniel McKenzie0
James A. Gray0
Date of Patent
September 18, 2007
Patent Application Number
10167028
Date Filed
June 10, 2002
Patent Primary Examiner
Patent abstract
A real-time maintenance alert system and method for use in a heavy-duty truck having an engine controller with memory are provided. The system includes a sensor operative to indicate an engine condition from the group consisting of: oil filter restriction, air filter restriction, fuel filter restriction, oil level, and coolant reserve tank fluid level. Control logic at the engine controller processes the sensor signal to determine a real-time fault condition, when appropriate.
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