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US 2013/0199496 A1Published application
Method for restarting an engine
AssigneeFord Global Technologies, LLC
InventorsAlex O'Connor Gibson, De-Shiou Chen, Jeffrey Allen Doering
Life of this patent
Estimating the term…
Abstract
Methods and systems for controlling an engine that may be automatically stopped and started are presented. In one example, a method adjusts a position of an air inlet throttle according to engine position and in response to an operator change of mind to restart an engine that is being automatically stopped.
Claims20
A method for operating an engine, comprising:
- adjusting an actuator a first time to automatically stop an engine;
- adjusting the actuator a second time before the engine reaches zero speed in response to a request to restart the engine;
- and
- adjusting an air inlet throttle position in response to a state of an intake valve and the request to restart the engine.
1 more element
A method for operating an engine, comprising:
- ceasing combustion in a first cylinder in response to a request to automatically stop the engine;
- adjusting a position of an air inlet throttle in response to a closing timing of an intake valve of a second cylinder, the second cylinder preceding the first cylinder in order of engine combustion;
- and
- reinitiating combustion in the first cylinder after adjusting the position of the air inlet throttle.
1 more element
A system for controlling an engine, comprising:
- an engine including an adjustable valve timing mechanism and an air inlet throttle;
- and
- a controller including executable instructions stored in a non-transitory medium to automatically cease combustion in a cylinder of the engine and adjust valve timing of the cylinder in response to operating conditions other than an operator engine stop request, the controller including additional instructions to reinitiate combustion in the cylinder and adjust valve timing of the cylinder in response to operating conditions, the controller including additional instructions to adjust a position of an air inlet throttle in response to valve closing timing adjustments provided by the adjustable valve timing mechanism.
Dependencies are inferred from the claim text.