Title :
Motor-Generator Control of an Electro-mechanical Variable Transmission for a Hybrid Electric Vehicle
Author :
Kim, Jeongmin ; Kim, Namdoo ; Cho, Sungtae ; Kim, Hyunsoo
Author_Institution :
Sch. of Mech. Eng., Sung Kyun Kwan Univ., Suwon
Abstract :
EVT (electro-mechanical variable transmission) combines its power sources (engine and motor-generator) in a highly efficient way using planetary gear sets. Power characteristic of the EVT is analyzed by network analysis. From the network analysis, it is found that the EVT should be operated in low to medium speed range due to the power circulation in high speed range, which causes the decreased system efficiency. A motor-generator control algorithm is presented using the control parameters such as ZEV (zero emission vehicle) to HEV (hybrid electric vehicle) mode change velocity, accelerator pedal opening and battery SOC. Based on the dynamic model of the EVT HEV powertrain, a dynamic performance simulator is developed using Cruise. Simulation results show that the control algorithm is able to provide the optimal engine operation for the best fuel economy of the HEV
Keywords :
engines; hybrid electric vehicles; machine control; power transmission (mechanical); variable speed gear; EVT; ZEV; dynamic performance Cruise simulator; electro-mechanical variable transmission; engine; fuel economy; hybrid electric vehicle; motor-generator control; network analysis; planetary gear sets; power characteristic; power circulation; power sources; powertrain; zero emission vehicle; Battery powered vehicles; Electric variables control; Engines; Gears; Hybrid electric vehicles; Mechanical power transmission; Optimal control; Power system modeling; Vehicle dynamics; Velocity control; EVT(electro-mechanical variable transmission); Motor-generator control; Network analysis;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315113
