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Dynamic Inversion 기법을 이용한 전자제어 조향 시스템 제어기 설계
서병석(Byungseok Seo),양인석(Inseok Yang),변성일(Seongil Byun),이동익(Dongik Lee) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Electric Power Steering(EPS) system has been developed in the last decade. Control strategy of EPS system is the core technology, which offer a various driving feelings and improve response time and accuracy. Many of control strategy is researched such as sliding mode control, H infinite control so on. But this controller is not guaranteed safe-critical system’s requirements and very complex. For this reason, the paper aims at designing a robust controller with dynamic inversion method, strengthening the robustness on stability and providing fast and accuracy response. The simulation results verified the effect of proposed controller.
서병석(Byungseok Seo),이동익(Dongik Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
This paper presents the fault detection and isolation strategy for electric vehicle(EV). Unlike the conventional internal combustion engine vehicle, electric vehicle is consist of electric motor, inverter, battery-management system(BMS), etc. For this reason, electric vehicle has a new failure modes. Vehicle system is a safety-critical system. There are high demands on safety. In this paper, we analysis of electric vehicle failure mode using Fault Tree Analysis(FTA) method. The result of Motor/inverter and battery system fault tree analysis are shown in conclusion.