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병렬형 하이브리드자동차용 벨트구동식 ISG시스템의 제어전략 개발
정후용(Huyong Jung),이형석(Hyungsuk Lee),이준성(Junseoung Rhee),이승호(Seungho Lee) 한국자동차공학회 2007 한국자동차공학회 Symposium Vol.- No.-
The aim of this paper is to show several improved control strategies for the belt-driven ISG system applied to the parallel hybrid vehicle which requires engine-speed synchronization with transmission input-shaft-speed and engine-clutchclosing sequence to activate the engine-driving mode(HEV mode) under the motor-driving mode(EV mode). To overcome communication-delay and ISG system-delay, estimation control method will be introduced. To overcome the problem of inexact engine-torque information, modified PID control will be proposed. Also it will be shown that proposed our clutchclosing strategy is effective to accelerate the overall response time while reducing the clutch-closing shock in the vehicle. All ideas mentioned above, were implemented and validated already in the real vehicle. We will show the test results for each idea. Finally, for the future studies by others, several new ideas for this system will be suggested without any proof.