Method for operating an internal combustion engine

Details Method for operating an internal combustion engine Method for operating an internal combustion engine

2006-02-21

2006-02-21

Argenbright, Tony M. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S103000, C123S406410, C123S435000

Reexamination Certificate

active

07003391

ABSTRACT:
In an internal combustion engine (10), exhaust gas leaves a combustion chamber (14) via at least one outlet valve (36) which is opened by an actuator after termination of a working stroke. A pressure value is determined, which characterizes the pressure of the gas in the combustion chamber during the working stroke. An actual value of the valve lift of the outlet valve (36) is determined, together with actual operating parameters of the internal combustion engine (10) which affect this opening stroke, and based on the determined actual valve lift of the outlet valve (36) and actual operating parameters of the internal combustion engine (10), an actual gas pressure in the combustion chamber (14) at the time of the opening of the outlet valve is calculated at least approximately.

REFERENCES:
patent: 2004/0025838 (2004-02-01), Fuwa et al.
patent: 1 138 896 (2001-10-01), None
patent: 1 342 899 (2003-09-01), None
patent: 02/48531 (2002-06-01), None
Jankovic, M., et al: “Torque Management of Engiens with . . . ” IEEE Control Systems Magazine, IEEE Inc. New York, US, vol. 18, No. 5, 1998, pp. 34-42.

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