Methods and systems for driveline mode transitions
First Claim
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1. A method for operating a driveline, comprising:
- stopping rotation of an engine and providing regenerative braking via a driveline;
transitioning from the regenerative braking to providing positive torque to the driveline;
operating a driveline integrated starter/generator in a speed control mode during the transition; and
increasing slip of a torque converter clutch during the transitioning from the regenerative braking to providing positive torque to the driveline.
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Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, a method for transitioning between regenerative braking and providing positive torque to a driveline is presented.
51 Citations
13 Claims
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1. A method for operating a driveline, comprising:
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stopping rotation of an engine and providing regenerative braking via a driveline; transitioning from the regenerative braking to providing positive torque to the driveline; operating a driveline integrated starter/generator in a speed control mode during the transition; and increasing slip of a torque converter clutch during the transitioning from the regenerative braking to providing positive torque to the driveline. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating a driveline, comprising:
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stopping rotation of an engine and providing regenerative braking via a driveline integrated starter/generator; transitioning the driveline integrated starter/generator from providing the regenerative braking to providing positive torque to the driveline; and adjusting slip of a torque converter clutch in response to the transition from providing regenerative braking to providing positive torque to the driveline. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification