Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Reexamination Certificate
2007-02-27
2007-02-27
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
C123S357000, C123S339190
Reexamination Certificate
active
10542502
ABSTRACT:
A method for closed-loop speed control of an internal combustion engine that is provided as a generator drive or a marine propulsion unit, including the steps of: computing a first control deviation (dR1) from a speed variance comparison; computing a first set injection quantity (qV0) from the first control deviation (dR1) by a speed controller; determining a second set injection quantity (qV) from the first set injection quantity (qV0) and another input variable (E) by a minimum value selector for the closed-loop speed control of the internal combustion engine, wherein in a first, steady operating state of the internal combustion engine, the input variable (E) corresponds to a first injection quantity (qV1) (E=qV1), which is computed via a first characteristic curve, and in a second, dynamic operating state of the internal combustion engine, the input variable (E) corresponds to a second injection quantity (qV2) (E=qV2), which is computed via a second characteristic curve; and changing from the first characteristic curve to the second characteristic curve when a changeover condition is satisfied.
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Butscher Franz
Dolker Armin
Miller Carl S.
MTU Friedrichshafen GmbH
Stoffel Klaus P.
Wolff & Samson PC
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