Regenerative braking control to mitigate powertrain oscillation
First Claim
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1. 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.
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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.
29 Citations
20 Claims
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1. A vehicle comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle system comprising:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for controlling regenerative braking comprising:
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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. - View Dependent Claims (18, 19, 20)
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Specification