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Dynamic SOC Compensation of an Ultracapacitor Module for a Hybrid Energy Storage System
송현식,정진범,신동현,이백행,김희준,허훈 전력전자학회 2010 JOURNAL OF POWER ELECTRONICS Vol.10 No.6
The ultracapacitor module has recently been recast for use in hybrid energy storage systems (HESSs). As a result, accurate state-of-charge (SOC) estimation for an ultracapacitor module is as important as that of primary sources in order to be utilized efficiently in an energy storage system (ESS). However, while SOC estimation via the open-circuit voltage (OCV) method is generally used due to its linear characteristics compared with other ESSs, this method results in many errors in cases of highcurrent charging/discharging within a short time period. Accordingly, this paper introduces a dynamic SOC estimation algorithm that is capable of SOC compensation of an ultracapacitor module even when there is a current input and output. A cycle profile that simulates the operating conditions of a mild-HEV was applied to a vehicle simulator to verify the effectiveness of the proposed algorithm.
친환경 자동차용 Battery HILS 개발에 관한 연구
송현식(Hyun-Sik Song),이백행(Baek-Haeng Lee),신동현(Dong-Hyun Shin),정진범(Jin-Beom Jeong),김병훈(Byoung-Hoon kim),유지윤(Ji-Yoon Yoo),허훈(Hoon Heo) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
The development of technology for green cars such as Plug-in HEVs and EVs is increasingly activated according to the conversion of vehicle development paradigm to energy issues, environmental regulations, and government"s New Deal policies, etc. As a result, the importance of the battery system that is the main power sources of the green car has emerged. The most effective way is an using the Battery HILS(Hardware-In-the-Loop Simulation) to significantly reduce development costs and time in vehicle-level environmental for development and evaluation of a battery system including BMS(Battery Management System). Therefor, this study introduces the domestic and international development trends and development practices for Battery HILS and describes the process, verification of the Battery HILS and the utilization using the Battery HILS.
송현식(Hyun-Sik Song),이백행(Baek-Haeng Lee),신동현(Dong-Hyun Shin),김병우(Byeong-Woo Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.5_1
The popularity of the diesel engine revolves around its fuel efficiency, reliability, and durability compared to the gasoline engine. However, the main disadvantage of diesel engine is the emission of particulate matter (PM) which is known as carcinogenic substance. Therefore recent progress in engine management and after-treatment systems has led to great improvement to satisfy strict emission regulations.<br/> To comply with powerful environment regulations, this study is focused on the decrease of PM(soot) as to increase significantly exhaust temperature. Therefore, HC injection is used as the method to go to the PM regeneration temperature in front of filters composed of diesel oxidation catalyst(DOC) and diesel particulate filter(DPF). And especially, LPG is used because it has good chemical reactions with exhaust.<br/> In this study we could manufacture the test bench thought LPG injection - with which soot can be decreased-, construct 3 kinds of database(DB) according to quantity of temperature to decide the LPG injection quantity and develop DPF ECU algorithm.