Title :
Coordinated powertrain control of upshift on combined clutch transmission for electric vehicles
Author :
Li Junqiu ; Wei Han ; Tang Junhan ; Zhang Xiaopeng
Author_Institution :
Beijing Inst. of Technol., Beijing, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
To improve the shift quality of electric vehicles equipped with combined clutch planetary transmission with two gears, a dynamic model of shifting process is established. The shift jerk and friction work are chosen as a comprehensive control target. Linear quadratic optimal control is used to optimize the upshift process of combined clutch planetary transmission, in which the motor is involved. The simulation results of upshift show that shift quality can be effectively improved by the coordinated control of the motor torque and the clutch transmission torque during upshift process, compared with combined clutch control only.
Keywords :
clutches; electric vehicles; gears; linear quadratic control; optimisation; power transmission (mechanical); torque control; clutch transmission torque control; coordinated powertrain control; electric vehicles; friction work; gears; linear quadratic optimal control; motor torque control; shift jerk; shifting process; upshift process optimization; Friction; Gears; Mathematical model; Permanent magnet motors; Torque; Vehicle dynamics; Vehicles;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940634
