Regenerative braking control to mitigate powertrain oscillation
AssigneeFord Global Technologies, LLC
InventorsWilliam David Treharne, Jonathan Andrew Butcher, Dale Scott Crombez, Thomas Scott Gee
Life of this patent
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Abstract
A vehicle is provided with at least one wheel and a motor that is coupled to the wheel. The motor is configured to provide regenerative brake torque. The vehicle also includes at least one controller that is configured to predict future powertrain oscillation based on input indicative of a wheel speed and a total brake torque. The controller is also configured to control the motor to reduce the regenerative brake torque prior to the powertrain oscillation.
Claims20
A vehicle comprising:
- at least one wheel;
- a motor coupled to the wheel and configured to provide regenerative brake torque;
- and
- at least one controller configured to predict future powertrain oscillation based on input indicative of a wheel speed and to control the motor to reduce the regenerative brake torque prior to the powertrain oscillation.
A vehicle system comprising:
- a motor configured to provide regenerative brake torque to at least one wheel;
- and
- at least one controller configured to:
- predict future powertrain oscillation based on input indicative of a total brake torque, and
- control the motor to reduce the regenerative brake torque prior to the powertrain oscillation.
A method for controlling regenerative braking comprising:
- receiving input indicative of at least one wheel speed and a total brake torque;
- predicting an event associated with powertrain oscillation based on at least one of the wheel speed and the total brake torque;
- and
- controlling a motor to reduce a regenerative brake torque prior to the event for reducing powertrain oscillation.
Dependencies are inferred from the claim text.