FLATNESSBASED CLUTCH CONTROL FOR AUTOMATED MANUAL TRANSMISSIONS
Joachim Horn* Joachim Bamberger* Peter Michau** Stephan Pindl**
* Siemens AG, Corporate Technology Information and Communications CT IC 4 D81730 München, Germany
** SiemensVDO Automotive AG AT PT DTS FDC 2 D93055 Regensburg, Germany
Control of the clutch position is a crucial point for automating manual transmissions. Here, an electrohydraulic clutch position control system is considered. Based on the flatness approach, a nonlinear feedforward control is designed, which is combined with a linear feedback control and implemented on a standard transmission control unit. Experiments with a MercedesBenz Sprinter and a Mercedes-Benz CLK prove that this new control system is significantly superior to conventional control concepts, and provides an accurate trajectory tracking of the clutch position.
Keywords: Automotive Control, Nonlinear Control, Inverse Dynamics Control, Hydraulic Actuators, Position Control
Session slot T-We-M05: Control of Automotive Powertrains/Area code 8b : Automotive Control

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