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US 9,789,868 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.
Claims16
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, and additional instructions to open the driveline disconnect clutch at a predetermined engine speed.
4 more elements
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, the transmission including an output shaft and a case;
- and
- a controller including executable instructions stored in non-transitory memory to close the driveline disconnect clutch when the driveline disconnect clutch is open in response to a request to stop engine rotation.
4 more elements
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, the transmission including an output shaft and a case;
- and
- a controller including executable instructions stored in non-transitory memory to determine a desired transmission oil line pressure and rotate the DISG at a speed to provide the desired transmission oil line pressure in response to a request to stop engine rotation.
4 more elements
Dependencies are inferred from the claim text.