METHOD FOR CONTROLLING VALVES DURING THE STOP OF AN ENGINE HAVING A VARIABLE EVENT VALVETRAIN
First Claim
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1. A method for stopping an engine having a variable event valvetrain, the method comprising:
- stopping said engine;
adjusting the current flow to at least a valve actuator to control the rate a valve is moved to a position by said valve actuator.
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Abstract
A method for controlling valves during an engine stop is presented. The valves are controlled in a manner that can quiet the engine during a stop. In addition, the valves may be selectively controlled to direct the contents of the cylinder in a desired direction so that engine emissions may be reduced.
68 Citations
18 Claims
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1. A method for stopping an engine having a variable event valvetrain, the method comprising:
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stopping said engine; adjusting the current flow to at least a valve actuator to control the rate a valve is moved to a position by said valve actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for stopping an engine having a variable event valvetrain, the method comprising:
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stopping said engine; adjusting the current flow to at least a valve actuator to control the rate a valve is moved to a first position by said valve actuator after said engine stop; and moving said valve actuator from said first position to a second position at an engine start. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification