ELECTROMECHANICAL VALVE OPERATING CONDITIONS BY CONTROL METHOD
First Claim
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1. A system for selecting and controlling electrically actuated valves to operate in at least a cylinder of an internal combustion engine, the system comprising:
- a cylinder head of said cylinder having at least two regions, each region having an electrically actuated valve; and
a controller to select a valve operating mode, based on an operating condition of at least an electrically actuated valve, wherein said operating mode selects at least an intake valve of said cylinder located in at least one region of said first and second region, and to operate said selected intake valve, without operating a non-selected intake valve, during at least an intake stroke of a cycle of said cylinder, and to operate said non-selected intake valve during at least an intake stroke of a subsequent cycle of said cylinder, without operating said selected intake valve.
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Accused Products
Abstract
A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled in a manner to increase fuel economy. Further, the method can adjust valve operation to regulate valve temperature.
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Citations
22 Claims
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1. A system for selecting and controlling electrically actuated valves to operate in at least a cylinder of an internal combustion engine, the system comprising:
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a cylinder head of said cylinder having at least two regions, each region having an electrically actuated valve; and
a controller to select a valve operating mode, based on an operating condition of at least an electrically actuated valve, wherein said operating mode selects at least an intake valve of said cylinder located in at least one region of said first and second region, and to operate said selected intake valve, without operating a non-selected intake valve, during at least an intake stroke of a cycle of said cylinder, and to operate said non-selected intake valve during at least an intake stroke of a subsequent cycle of said cylinder, without operating said selected intake valve. - View Dependent Claims (2, 3, 4, 5)
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6. A system for selecting and controlling electrically actuated valves to operate in at least a cylinder of an internal combustion engine, the system comprising:
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a cylinder head of said cylinder having at least two regions, each region having an electrically actuated valve; and
a controller to select a valve operating mode, based on an operating condition of at least an electrically actuated valve, wherein said operating mode selects at least an exhaust valve of said cylinder located in at least one region of said first and second region, and to operate said selected exhaust valve, without operating a non-selected exhaust valve, during a cycle of said cylinder, and to operate said non-selected exhaust valve during a subsequent cycle of said cylinder, without operating said selected exhaust valve. - View Dependent Claims (7, 8, 9, 10)
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11. A system for selecting and controlling electrically actuated valves to operate in at least a cylinder of an internal combustion engine, the system comprising:
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a cylinder head of said cylinder having at least four regions, each region having an electrically actuated valve; and
a controller to select a valve operating mode, based on an operating condition of at least an electrically actuated valve, wherein said operating mode selects at least an intake valve of said cylinder located in at least one region of said first and second region, and to operate said selected intake valve, without operating a non-selected intake valve, during a cycle of said cylinder, and to operate said non-selected intake valve during a subsequent cycle of said cylinder, without operating said selected intake valve, and to select at least an exhaust valve of said cylinder located in at least one region of said third and forth region, and to operate said selected exhaust valve, without operating a non-selected exhaust valve, during a cycle of said cylinder, and to operate said non-selected exhaust valve during a subsequent cycle of said cylinder, without operating said selected exhaust valve. - View Dependent Claims (12, 13)
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14. A method to control electrically actuated valves in an internal combustion engine, the method comprising:
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during engine operation, operating a first and a second electrically actuated intake valve in a cylinder of said engine, during at least an intake stroke of a cycle of said cylinder during on a first set of electrically actuated valve operating conditions; and
operating said first intake valve without operating said second intake valve during at least an intake stroke of a cycle of said cylinder, and operating said second intake valve without operating said first intake valve, during at least an intake stroke of a subsequent cycle of said cylinder, during a second set of electrically actuated valve operating conditions.
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15. A system for selecting and controlling electrically actuated valves to operate in at least a cylinder of an internal combustion engine, the system comprising:
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a cylinder head of said cylinder having at least two regions, each region having an electrically actuated valve; and
a controller to select a valve operating mode, based on an operating condition of at least an electrically actuated valve and an operating condition of said engine, wherein said operating mode selects at least an exhaust valve of said cylinder located in at least one region of said first and second region, and to operate said selected exhaust valve, without operating a non-selected exhaust valve, during a cycle of said cylinder, and to operate said non-selected exhaust valve during a subsequent cycle of said cylinder, without operating said selected exhaust valve. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A computer readable storage medium having stored data representing instructions executable by a computer to control an internal combustion engine of a vehicle, said storage medium comprising:
instructions to select a valve operating mode, based on an operating condition of at least an electrically actuated valve, wherein said operating mode selects at least an intake valve of said cylinder located in at least one region of said first and second region, and to operate said selected intake valve, without operating a non-selected intake valve, during at least an intake stroke of a cycle of said cylinder, and to operate said non-selected intake valve during at least an intake stroke of a subsequent cycle of said cylinder, without operating said selected intake valve.
Specification