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US 2013/0199335 A1Published application
Method for starting an engine
AssigneeFord Global Technologies, LLC
InventorsFelix Nedorezov, Hong Jiang, Alex O'Connor Gibson, Roger Lyle Huffmaster, Ihab S. Soliman
Life of this patent
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Abstract
A method for improving starting of an engine that may be repeatedly stopped and started is presented. In one embodiment, the method adjusts a transmission actuator in response to engine combustion during an engine start. The method may improve vehicle launch for stop/start vehicles.
Claims20
A method for starting an engine, comprising:
- stopping the engine and tracking engine position;
- predicting a first combustion event of a cylinder based on the tracked engine position;
- and
- during an engine start, adjusting a transmission tie-up force in response to a timing of the first combustion event of the cylinder.
1 more element
A method for starting an engine, comprising:
- stopping an engine and tracking engine position during stopping the engine;
- adjusting at least one actuator of a transmission to control a transmission tie-up force during said engine stop;
- predicting a combustion event of a cylinder based on the tracked engine position;
- and
- during an engine start, adjusting said at least one actuator of said transmission to decrease said transmission tie-up torque in response to a timing of the combustion event of the cylinder of said engine since stopping the engine.
2 more elements
A method for starting an engine, comprising:
- during a first condition:
- starting an engine while a transmission is in an operator selected state;
- and
- during a second condition, different than said first condition:
- stopping an engine at a first engine position and tracking engine position;
- predicting a first combustion event of a cylinder based on the tracked engine position;
- starting said engine while said transmission is in a tied-up state;
- and
- reducing a tie-up force of said transmission in response to the predicted first combustion event of the cylinder since engine stop, said occurrence of a first combustion event related to said first engine position.
6 more elements
Dependencies are inferred from the claim text.