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US 2013/0296121 A1Published application
Methods and systems for engine stopping
AssigneeFord Global Technologies, LLC
InventorsAlex O'Connor Gibson, Jeffrey Allen Doering, Adam Nathan Banker, David Oshinsky, Dennis Craig Reed
Life of this patent
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Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is stopped to a desired position via slipping a driveline disconnect clutch so that engine starting may be improved.
Claims20
An engine stopping method, comprising:
- adjusting a speed of a driveline integrated starter/generator (DISG) to a desired speed that provides a desired transmission clutch oil line pressure in response to a request to stop engine rotation;
- and
- slipping a driveline disconnect clutch in a driveline between the DISG and the engine to stop the engine at a desired position.
An engine stopping method, comprising:
- closing a driveline disconnect clutch in response to a request to stop engine rotation;
- adjusting a speed of a driveline integrated starter/generator (DISG) to a desired engine speed profile that decelerates toward zero engine speed;
- and
- opening the driveline disconnect clutch at a predetermined engine speed.
1 more element
A vehicle system, comprising:
- an engine;
- a dual mass flywheel (DMF) including a first side mechanically coupled to the engine;
- a driveline disconnect clutch mechanically including a first side coupled to a second side of the dual mass flywheel;
- a driveline integrated starter/generator (DISG) including a first side coupled to a second side of the driveline disconnect clutch;
- a transmission selectively coupled to the engine via the driveline disconnect clutch;
- and
- a controller including executable instructions stored in non-transitory memory to adjust operation of the driveline disconnect clutch in response to a request to stop engine rotation.
4 more elements
Dependencies are inferred from the claim text.