Internal-combustion engines – Adjustable combustion chamber – Piston in head adjusted
Reexamination Certificate
2007-06-12
2007-06-12
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Adjustable combustion chamber
Piston in head adjusted
C123S0780AA
Reexamination Certificate
active
11266608
ABSTRACT:
A method for operating an internal combustion engine. The method includes: providing a functional relationship between time rate of change in engine speed, and compression ratio switching engine speed limit; determining time rate of change in engine speed; determining from the determined rate of change of engine speed and the function whether the engine speed exceeds the compression ratio switching engine speed; and commanding the engine to operate at a relatively low compression ratio if the determined time of change in engine speed exceeds the compression ratio switching engine speed limit and commanding the engine to operate at a relatively high compression ratio if the determined time of change in engine speed is less than the compression ratio switching engine speed limit.
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Glugla Chris P.
Trumpy David K.
Yoo In Kwang
Ford Global Technologies LLC
Kamen Noah P.
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