Variable incremental activation and deactivation of cylinders in a displacement on demand engine
First Claim
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1. A method of regulating displacement in a displacement on demand engine, comprising:
- determining a desired engine displacement;
determining a current engine displacement; and
adjusting activation of a first cylinder to partially achieve said desired engine displacement and subsequently adjusting activation of a second cylinder to fully achieve said desired engine displacement from said current engine displacement.
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Abstract
A method of regulating displacement in a displacement on demand engine includes determining a desired engine displacement and determining a current engine displacement. The method further includes adjusting activation of a first cylinder to partially achieve the desired engine displacement and subsequently adjusting activation of a second cylinder to fully achieve the desired engine displacement from the current engine displacement. The method adjusts activation of the cylinders one at a time to reduce vibration in the engine.
67 Citations
20 Claims
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1. A method of regulating displacement in a displacement on demand engine, comprising:
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determining a desired engine displacement;
determining a current engine displacement; and
adjusting activation of a first cylinder to partially achieve said desired engine displacement and subsequently adjusting activation of a second cylinder to fully achieve said desired engine displacement from said current engine displacement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An engine control system that regulates displacement in a displacement on demand engine, comprising:
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a first cylinder;
a second cylinder; and
a control module that determines a desired engine displacement, that determines a current engine displacement and that adjusts activation of said first cylinder to partially achieve said desired engine displacement and subsequently adjusts activation of said second cylinder to fully achieve said desired engine displacement from said current engine displacement.
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- 11. The engine control system of claim 11 wherein said control module delays adjusting activation of said second cylinder for a predetermined time period based on an engine timing to reduce vibration.
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18. A method of regulating displacement in a displacement on demand engine, comprising:
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determining a desired engine displacement;
determining a current engine displacement; and
adjusting activation of a second cylinder after adjusting activation of a first cylinder and after a predetermined amount of engine timing pulses to achieve said desired engine displacement from said current engine displacement. - View Dependent Claims (19, 20)
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Specification