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US 12,594,840 B2Granted
Method and system for recovering from torque reduction control
AssigneeFord Global Technologies, LLC
InventorsNithesh Maddi Reddy, Matthew Shelton, Kyle Culek
Life of this patent
Estimating the term…
Abstract
Methods and systems for adjusting wheel torque to a driver demand wheel torque after the wheel torque has been reduced below the driver demand wheel torque are described. In one example, a rate at which wheel torque is returned to driver demand wheel torque is based on sign changes for wheel speed.
Claims19
A method for operating a vehicle, comprising:
- via a controller, adjusting a rate a wheel torque is increased toward a driver demand wheel torque according to a count of a change in signs between a first change in a wheel speed and a second change in the wheel speed, where the count is accumulated over a predetermined amount of time.
A vehicle system, comprising:
- a torque source configured to provide a wheel torque;
- and
- a controller including executable instructions stored in non-transitory memory that cause the controller to adjust a rate the wheel torque generated via the torque source is increased toward a driver demand wheel torque according to a count of a change in signs between a first change in a wheel speed and a second change in the wheel speed, where the change in signs is from a positive sign to a negative sign or from the negative sign to the positive sign, and where the count is accumulated over a predetermined amount of time.
A method for operating a vehicle, comprising:
- via a controller, adjusting a rate a wheel torque is increased toward a driver demand wheel torque according to a difference between a threshold value and a count of a change in signs between a first change in a wheel speed and a second change in the wheel speed, where the count is accumulated over a predetermined amount of time.
Dependencies are inferred from the claim text.