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US 9,393,954 B2Granted
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
Estimating the term…
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.
Claims14
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 an 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
Dependencies are inferred from the claim text.