Gm Global Technolgoy Operations, Inc.

James R Walter

Steven G Reini

Steven T Schweitzer

Satish Sundaram

Shane Macfarlane

Jason Matthew Kolk

Brian Ronald Goodman

A method for controlling a torque transfer device for a vehicle may include identifying a self-locking state of the torque transfer device. The method further may include determining a drivetrain unlocking torque necessary to unlock the torque transfer device in response to identifying the self-locking state. The method further may include determining a drivetrain compensation torque necessary to counteract a drivetrain unlocking torque dynamic effect of the drivetrain unlocking torque in response to identifying the self-locking state. The method further may include applying the drivetrain unlocking torque and the drivetrain compensation torque using one or more drivetrain components of the vehicle in response to identifying the self-locking state.

Torque transfer device control for a vehicle

A system and method for electronically controlling a limited slip differential is disclosed. The method includes determining, by an electronic controller of a vehicle, a request for a limited-slip-differential coupling torque to be applied. The request is based upon an estimation of the vehicle's mass. The method also includes transmitting the request to an electronic limited slip differential of the vehicle. The electronic limited slip differential is configured to apply the requested limited-slip-differential coupling torque.

Method and system for controlling a limited slip differential

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Ann Arbor, MI, United States of America

James R Walter