CVT 시스템 효율을 고려한 변속 제어

다국어 초록 (Multilingual Abstract)

A modified ratio control algorithm is proposed for the improvement of the fuel economy for a metal belt CVT. In the modified ratio control algorithm, the CVT ratio is controlled to operate the engine on the optimal operation region which provides the best efficiency from the view point of the overall efficiency of the engine-CVT system. In order to construct the modified ratio map, the CVT system loss model is used by assuming that the all the loss is attributed to the torque loss. It is found from the simulation results that the fuel economy by the modified ratio control algorithm is improved by 5.5 percents compared with the existing ratio control.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. CVT 토크 손실 모델
• 3. CVT 효율을 고려한 엔진-CVT 운전점
• 4. CVT 손실을 고려한 목표 변속비 도출 방법
• 5. CVT 시스템 손실을 고려한 변속 제어 성능 시뮬레이션
• 6. 결론
• 후기
• References

참고문헌 (Reference)

1 "Mechanical Loss Model for a Metal Belt CVT" 981-986, 2005.

2 "Integrated Engine-CVT Control Considering Powertrain Response Lag in Acceleration" 14 (14): 764-72, 2000.

3 "Improvement of Fuel Economy by Shift Sped Control for a Metal Belt Continuously Variable Transmision" 216 : 741-749, 2002.

4 "Improvement in Fuel economy for a Paralel Hybrid Electric Vehicle by Continuously Variable Transmision Ratio Control" 219 : 43-52, 2005.

5 "Hierarchical Control of the Zero Inertial Powertrain" 519-526, 2001.

6 "Engine-CVT-A/F Consolidated Control Using Decoupling Control Theory" 9-14, 2001.

7 "Engine-CVT Consolidated Control Using LQI Control Theory" 251-258, 1999.

8 "Development of an Engine-CVT Integrated Control System" 1999.

9 "Analysis of Primary andSecondary Thrust for a Metal Belt CVT" 2000.

10 "An Integrated Control Algorithm for an SI Engine and a CVT" 1999.