Methods and system for operating a hybrid vehicle in cruise control mode
AssigneeFord Global Technologies, LLC
InventorsAlexander O'Connor Gibson, James William Loch McCallum, Felix Nedorezov, Xiaoyong Wang, Matthew John Shelton
Life of this patent
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Abstract
Systems and methods for reducing driveline mode change busyness for a hybrid vehicle are presented. The systems and methods may delay a driveline mode change in response to a time since a change from a first desired vehicle speed to a second vehicle speed, or alternatively, driveline mode changes may be initiated in response to an estimated time to change from the first desired vehicle speed to the second desired vehicle speed.
Claims20
A method for a controller, comprising:
- during a closed-loop vehicle speed control mode, delaying a change in propulsion sources providing torque to a driveline of a vehicle or absorbing torque from the driveline via the controller in response to a determined amount of time since a change in a desired vehicle speed of the vehicle, where the propulsion sources include an engine of the vehicle and a driveline integrated starter generator (DISG) of the vehicle.
A method for a controller, comprising:
- during a closed-loop vehicle speed control mode, delaying a change in propulsion sources of a vehicle via the controller, the propulsion sources including an engine and a driveline integrated starter generator (DISG), providing torque to a driveline of the vehicle or absorbing torque from the driveline in response to a determined estimate of a time to change from a present vehicle speed of the vehicle to a new vehicle speed.
A system for a hybrid vehicle, comprising:
- an engine;
- a driveline integrated starter generator (DISG);
- a driveline disconnect clutch mechanically coupled to the engine and the DISG;
- a transmission;
- and
- a controller including instructions to change from a first driveline mode to a second driveline mode in response to an estimate of a time to change from a present vehicle speed to a new vehicle speed while the hybrid vehicle is operating in a closed-loop vehicle speed control mode.
Dependencies are inferred from the claim text.