Title :
Clutch slip control of automatic transmissions: A nonlinear feedforward-feedback design
Author :
Gao, Bingzhao ; Chen, Hong ; Liu, Qifang ; Sanada, Kazushi
Author_Institution :
State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Jilin, China
Abstract :
To improve the shift quality of vehicle with clutch-to-clutch gear shifts, a nonlinear controller based on flatness is proposed for the clutch slip control during the inertia phase. A nonlinear feedforward control is designed in consideration of the system nonlinearities, and a linear feedback control is given to accommodate the model errors and the disturbances. The proposed control scheme has small computational demand and the complex nonlinear characteristics of powertrain system appear in their original form of lookup tables. Finally, the designed controller is tested on an AMESim powertrain simulation model, which contains a time-variant model of clutch actuators.
Keywords :
actuators; clutches; control system synthesis; feedback; feedforward; linear systems; nonlinear control systems; power transmission (mechanical); table lookup; AMESim powertrain simulation model; automatic transmissions; clutch actuators; clutch slip control; clutch-to-clutch gear shifts; linear feedback control; lookup tables; nonlinear feedforward-feedback design; powertrain system; time-variant model; Engines; Gears; Shafts; Teeth; Torque; Valves; Vehicles; Automatic Transmission; Clutch Slip Control; Differential Flatness; Hydraulic Actuators; Nonlinear Feedforward-Feedback Control;
Conference_Titel :
Control Applications (CCA), 2010 IEEE International Conference on
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-5362-7
Electronic_ISBN :
978-1-4244-5363-4
DOI :
10.1109/CCA.2010.5611108
