Title :
Gearshift control for automated manual transmissions
Author :
Glielmo, Luigi ; Iannelli, Luigi ; Vacca, Vladimiro ; Vasca, Francesco
Author_Institution :
Dipt. di Ingegneria, Univ. degli Studi del Sannio, Benevento, Italy
Abstract :
A gearshift control strategy for modern automated manual transmissions (AMTs) with dry clutches is proposed. The controller is designed through a hierarchical approach by discriminating among five different AMT operating phases: engaged, slipping-opening, synchronization, go-to-slipping, and slipping-closing. The control schemes consist of decoupled and cascaded feedback loops based on measurements of engine speed, clutch speed, and throwout bearing position, and on estimation of the transmitted torque. Models of driveline, dry clutch, and controlled actuator are estimated on experimental data of a medium size gasoline car and used to check through simulations the effectiveness of the proposed controller.
Keywords :
automobiles; automotive components; cascade control; control system synthesis; feedback; gears; velocity measurement; automated manual transmissions; cascaded feedback loops; clutch speed measurement; decoupled feedback loops; driveline model; dry clutch model; engaged operating phase; engine speed measurement; gearshift control; go-to-slipping operating phase; medium size gasoline car; slipping-closing operating phase; slipping-opening operating phase; synchronization operating phase; throwout bearing position measurement; transmitted torque estimation; Actuators; Automatic control; Engines; Feedback loop; Petroleum; Position measurement; Size control; Torque control; Torque measurement; Velocity measurement; Automated manual transmissions (AMTs); automotive control; clutch engagement control; dry clutch; gearshift;
Journal_Title :
Mechatronics, IEEE/ASME Transactions on
DOI :
10.1109/TMECH.2005.863369
