Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2011-06-14
2011-06-14
Cronin, Stephen K (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S435000
Reexamination Certificate
active
07962272
ABSTRACT:
A method of sensing the air/fuel ratio in a combustion chamber of an internal combustion engine that may be easily implemented by a respective low-cost device includes a pressure sensor and a learning machine that generates a sensing signal representing the air/fuel ratio by processing the waveform of the pressure in at least one cylinder of the engine. In practice, the learning machine extracts characteristic parameters of the waveform of the pressure and as a function of a certain number of them generates the sensing signal.
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Amato Paolo
Carpentieri Francesco
Cesario Nicola
Di Meglio Maurizio
Moselli Giovanni
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Cronin Stephen K
Hoang Johnny H
Jorgenson Lisa K.
STMicroelectronics S.r.l.
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