Method and apparatus for operating a powertrain system upon detecting a stuck-closed clutch
AssigneeGM Global Technology Operations LLC
InventorR. Anthony Hansen
Life of this patent
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Abstract
A powertrain system includes a multi-mode transmission having a plurality of torque machines. A method for controlling the powertrain system includes identifying all presently applied clutches including commanded applied clutches and the stuck-closed clutch upon detecting one of the torque-transfer clutches is in a stuck-closed condition. A closed-loop control system is employed to control operation of the multi-mode transmission accounting for all the presently applied clutches.
Claims11
A method for controlling a powertrain system comprising a multi-mode transmission including a plurality of torque-transfer clutches, comprising:
- upon detecting one of the torque-transfer clutches is in a stuck-closed condition, identifying all presently applied clutches including commanded applied clutches and the stuck-closed clutch, and employing a closed-loop control system to control operation of the multi-mode transmission accounting for all the presently applied clutches.
A method for controlling a powertrain system comprising a multi-mode transmission including a plurality of torque-transfer clutches and torque machines, comprising:
- upon detecting one of the torque-transfer clutches is in a stuck-closed condition, identifying all presently applied clutches including commanded applied clutches and the stuck-closed clutch, and controlling torque outputs of the torque machines accounting for all the presently applied clutches.
A method for controlling a powertrain system comprising a multi-mode transmission including a plurality of torque-transfer clutches, comprising:
- upon detecting one of the torque-transfer clutches is in a stuck-closed condition, identifying all presently applied clutches including commanded applied clutches and the stuck-closed clutch, and employing a closed-loop speed control system to control operation of the multi-mode transmission including accounting for all the presently applied clutches.
Dependencies are inferred from the claim text.