입력분기방식 하이브리드 자동차의 운전전략 개발 = Control of Input Split Type Hybrid Electric Vehicle

다국어 초록 (Multilingual Abstract)

A control algorithm for an input split type hybrid electric vehicle(HEV) is proposed. In order to develop the control algorithm for the best fuel economy, the input split type HEV is analyzed by using lever analysis. From the analysis results, it is found that the powertrain efficiency decreases in the speed ratios where the power circulation occurs, and it is required that the ICE needs to be operated on the speed ratio region where the powertrain efficiency is relatively high. Using the dynamic models of the HEV powertrain, a control algorithm to obtain the high system efficiency is designed by inversion-based control. In order to evaluate performance of the control algorithm, the simulation is carried out using PSAT. It is found from the simulation results that the algorithm proposed in this study provides improved fuel economy since the control is able to provide the ICE operation on the speed ratio range, which gives relatively high powertrain system efficiency.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 입력 분기 방식 하이브리드 구조의 속도-토크 관계식 및 동력 흐름 해석
• 3. 동력 특성을 고려한 운전전략 개발
• 4. 시뮬레이션 결과
• 5. 결론
• References