Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-10-23
2007-10-23
Wolfe, Willis R. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
Reexamination Certificate
active
11546382
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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Jaworski, B.M., et al. “Pysik Greffbereit” Sep. 1974 XP002339713, pp. 443-445.
DeCarlo Robert D.
Lammers Ronald M. J.
Meeker Michael B.
Mutzabaugh Dennis M.
Stoffels Nicolaas M. J.
Hoang Johnny H.
Snap-On Incorporated
Wolfe Willis R.
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