Electrically actuated valve deactivation in response to vehicle electrical system conditions
AssigneeFord Global Technologies, LLC
InventorsDonald J. Lewis, John O. Michelini
Life of this patent
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Abstract
A method for controlling at least valve to operate in at least a cylinder of an internal combustion engine coupled to a manifold, the method comprising of deactivating said valve in response to an operating condition of a vehicle electrical system, wherein during at least a first condition of the vehicle electrical system said valve is deactivated in a first position that allows at least some airflow between the cylinder and the manifold.
Claims21
A method for controlling at least a valve to operate in at least a cylinder of an internal combustion engine coupled to a manifold, the method comprising:
- deactivating said valve in response to an electrical operating condition of a vehicle electrical system, wherein in response to a first electrical condition of the vehicle electrical system said valve is deactivated in a first position that allows at least some airflow between the cylinder and the manifold.
A method for controlling at least a valve to operate in at least a cylinder of an internal combustion engine of a vehicle, the vehicle including an electrical system, the method comprising:
- operating the valve for a first cycle of the cylinder in response to a first electrical operating condition of the vehicle electrical system;
- and
- deactivating operation of said valve for a second cycle of said cylinder in response to a second electrical operating condition of the vehicle electrical system, said valve deactivated in a desired position;
- wherein said second electrical condition of said electrical system is a lower amount of electrical power available for an engine start from said electrical system compared to an amount of electrical power available in said first electrical condition.
A method for controlling at least a valve to operate in at least a cylinder of an internal combustion engine of a vehicle, the vehicle including an electrical system, the method comprising:
- starting the engine in a first mode using a first number of valves in response to a first electrical condition of the vehicle electrical system;
- and
- starting said engine in a second mode using a second number of valves, said second number of valves less than said first number, in response to a second electrical condition of said vehicle electrical system;
- said second electrical condition including a lower amount of electrical power available to the engine from the electrical system than said first electrical condition.
Dependencies are inferred from the claim text.