Today, conventional CVT equipped vehicle controls engine torque and gear ratio by using engine torque map and shifting map. But this control process is difficult to optimize the fuel economy when the driving mode is changed arbitrary. In this study, I propose the real-time CVT control with considering the power loss of transmission system to improve vehicle fuel economy and drivability. The driving performance and fuel economy of the proposed control logic is analyzed by backward simulation and the validity of new control logic is verified.

ABSTRACT
 기호설명
 1. 서론
 2. 시스템의 동력 손실 모델링
 3. 연비 성능 분석 및 검증
  3.1 주행 사이클 기반 성능 분석
  3.2 연비 성능 시뮬레이션
 4. 엔진-변속기통합 제어 로직 개발
 5. 결론
 후기
 References

• 성주연(Seoul National University of Science and Technology) | J. Y. Sung
• 임원식(Seoul National University of Science and Technology) | W. S. Lim Corresponding Author
• 박성천(Yeoju Institute of Technology) | S. C. Park