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변속기 및 모터 손실을 고려한 TMED Type DCT PHEV의 CS 모드 주행 시 변속맵 개발
전성배(Sungbae Jeon),배경국(Kyunggook Bae),위준범(Junbeom Wi),남궁철(Choul Namkoong),구창기(Changgi Goo),이지석(Ji-suk Lee),황성호(Sung-Ho Hwang),김현수(Hyunsoo Kim) 한국자동차공학회 2017 한국 자동차공학회논문집 Vol.25 No.3
In this paper, a new shift map was proposed to improve the fuel economy of a transmission mounted electric device(TMED) type dual clutch transmission(DCT) plug-in hybrid electric vehicle(PHEV) by considering transmission and motor losses. To construct the shift map, powertrain efficiencies of the engine-DCT-motor were obtained at each gear step. A shift map that provides the highest powertrain efficiency was constructed for the given wheel torque and vehicle speed. Simulation results showed that the fuel economy of the target PHEV can be improved by the new shift map compared with the existing engine optimal operating line(OOL) shift control.