DUAL ACTIVE FUEL MANAGEMENT SEQUENCING
First Claim
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1. A system comprising:
- a cylinder selection module that selects cylinders of an engine for active fuel management; and
a valve deactivation module that deactivates intake valves of selected cylinders of said engine before deactivating exhaust valves of said selected cylinders when an engine speed of said engine is less than or equal to a predetermined speed.
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Abstract
A system includes a cylinder selection module and a valve deactivation module. The cylinder selection module selects cylinders of an engine for active fuel management. The valve deactivation module deactivates intake valves of selected cylinders of the engine before deactivating exhaust valves of the selected cylinders when an engine speed of the engine is less than or equal to a predetermined speed.
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Citations
15 Claims
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1. A system comprising:
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a cylinder selection module that selects cylinders of an engine for active fuel management; and a valve deactivation module that deactivates intake valves of selected cylinders of said engine before deactivating exhaust valves of said selected cylinders when an engine speed of said engine is less than or equal to a predetermined speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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selecting cylinders of an engine for active fuel management; and deactivating intake valves of selected cylinders of said engine before deactivating exhaust valves of said selected cylinders when an engine speed of said engine is less than or equal to a predetermined speed. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification