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SAE

SAE 2008-01-0537 : 2008

Two-Degree-of-Freedom Controller Design for Clutch Slip Control of Automatic Transmission

Standard Details

To improve shift quality of vehicle with clutch-to-clutch gear shifts, a two-degree-of-freedom controller, including a clutch pressure estimator, is designed for clutch control during the inertia phase of the shift process. The controller is designed based on a low order linear model which is derived from dynamics of the proportional pressure control valve and the vehicle drive line. Then the calculated controller is evaluated on the constructed nonlinear powertrain simulation model. Simulation results show that the rotational speed difference clutch can track the desired trajectory well, and shock can be reduced by designing suitable feedforward compensator.

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General Information

Status : ACTIVE
Standard Type: Main
Document No: SAE 2008-01-0537 : 2008
Document Year: 2008

Life Cycle

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ACTIVE
SAE 2008-01-0537 : 2008
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