Pascal Maurel

Dual clutch torque estimation Based on an angular discrete domain Takagi-Sugeno switched observer

× Nowadays, the dual clutch transmission is tending to be generalized because of the high yield of this kind of gearbox with sprockets. The dual clutch transmission also allows gear shifting without torque breaking. These kinds of transmissions are usually controlled in torque. To exploit all of the capacities of this technology in term of comfort and driving pleasure, accurate information of both clutch torque is mandatory. Further, the clutch torque cannot be measured on vehicle because of cost and packaging reasons. This paper proposes a technical solution of the clutch torque estimation in the dual clutch control framework. The estimation is based on an angular discrete domain Takagi-Sugeno switched observer and shaft torsion estimation from encoder sensors with a virtual teeth adding method. The methodology permits to obtain very interesting simulation results of clutch torque estimation on a complete vehicle simulation platform.