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

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940634

Filename

6940634