Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ronald M. J. Lammers0
Michael B. Meeker0
Nicolaas M. J. Stoffels0
Robert D. DeCarlo0
Dennis M. Mutzabaugh0
Date of Patent
January 30, 2007
Patent Application Number
10840434
Date Filed
May 7, 2004
Patent Primary Examiner
Patent abstract
An engine diagnostic system is provided that enables a service technician to evaluate engine cylinder contribution to output power. The service technician couples one or more signal leads to the vehicle's battery, alternator, or accessory receptacle (e.g., cigarette lighter receptacle) to provide an alternator output signal to a signal analyzer. The signal analyzer processes the alternator output signal to generate an engine signature, which represents engine cylinder contribution to engine output power.
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