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US 10,994,610 B2Granted
Methods and system for automatically stopping an engine
AssigneeFord Global Technologies, LLC
InventorsHafiz Shafeek Khafagy, Eric Michael Rademacher, Ahmed Awadi, Hussam Makkiya, Daniel Borrello
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating a vehicle that includes an engine that may be automatically stopped and started are described. In one example, an engine may be automatically stopped in response to an electric assisted braking threshold level that is adjusted responsive to vehicle speed so that opportunities to automatically stop an engine may be increased, thereby conserving fuel.
Claims17
An engine operating method, comprising:
- automatically stopping an engine via a controller in response to an available electric assisted braking force being greater than a first threshold when a speed of a vehicle is less than a vehicle speed threshold;
- and
- automatically stopping the engine via the controller in response to the available electric assisted braking force being greater than a second threshold when the speed of the vehicle is greater than the vehicle speed threshold, where the first threshold is less than the second threshold.
An engine operating method, comprising:
- adjusting an electric assisted braking force threshold via a controller in response to a vehicle speed;
- automatically stopping an engine via the controller in response to the electric assisted braking force threshold;
- and
- decreasing the electric assisted braking force threshold in response to a decreasing vehicle speed.
1 more element
A system, comprising:
- an engine;
- and
- a controller including executable instructions stored in non-transitory memory to automatically stop the engine in response to available braking torque being greater than a first electric assisted braking threshold during a first condition, and to automatically stop the engine in response to available braking torque being greater than a second electric assisted braking threshold during a second condition, where adjusting the first electric assisted braking threshold in response to vehicle speed includes reducing the first electric assisted braking threshold in response to a reduction in vehicle speed.
Dependencies are inferred from the claim text.