Control system for internal combustion engine

Details Control system for internal combustion engine Control system for internal combustion engine

2007-08-27

2009-10-06

Wolfe, Jr., Willis R (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S113000, C073S035020, C073S114380

Reexamination Certificate

active

07599781

ABSTRACT:
A control system for an internal combustion engine, which makes it possible to estimate a fuel property parameter indicative of a property of fuel in use, in a plurality of operation modes of the engine, respectively, to thereby increase the chances of estimation of the fuel property parameter, and select an appropriate one from the estimated fuel property parameters to thereby more appropriately control the engine. The fuel property parameter is estimated when the detected operating conditions of the engine correspond to any of a plurality of operation modes. Depending on a plurality of fuel property parameters estimated in respective operation modes, one of the fuel property parameters is determined as the fuel property parameter for control of the engine.

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