Engine control with cylinder deactivation and variable valve...

Details Engine control with cylinder deactivation and variable valve... Engine control with cylinder deactivation and variable valve...

2007-04-17

2009-12-08

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

Reexamination Certificate

active

07628136

ABSTRACT:
A valve control method for an internal combustion engine of a vehicle that uses cylinder deactivation. The method can adjust actuation phases of the engine's valves in an all-cylinder activation mode and a cylinder deactivation mode. The engine's valves may be controlled from an idle operating domain, to a fuel-economy operating domain, and in a cylinder deactivation operating domain.

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