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자동차용 CAN(Controller Area Network) 네트워크에서 전원분배시스템의 컨트롤러 모듈 구현에 대한 연구
김일구(Ealgoo Kim),이태연(Taeyeon Lee),성진호(Jinho Sung),임지훈(Jihoon Lim),박재홍(Jaehong Park),김형욱(Hyunguk Kim),김용묵,김의봉(Euibong Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Currently automobile CAN network gains it popularity from its effectiveness by reducing wiring harness and thus simplifying the automobile network. The majority spaces of the wiring harness in the previous automobile network is from the power connecting cables that connect every controller modules and electrical loads to the battery. This paper presents a power distribution system that connects all the modules and loads with a single power cable and thus effectively reduces the wiring harness. This paper first analyzes the requirements for the controller module for power distribution system in automobile CAN network and shows results of real implementation of the hardware which is applied to a real automobile system of Hyundai Motor Company.
자동차용 CAN(Controller Area Network) 네트워크 구현에 있어서 자동차 전원 부하 특성을 고려한 부하 그룹핑에 대한 연구
김일구(Ealgoo Kim),이태연(Taeyeon Lee),성진호(Jinho Sung),임지훈(Jihoon Lim),박재홍(Jaehong Park),김형욱(Hyunguk Kim),김용묵,김의봉(Euibong Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, electrical load grouping in automobile Controller Area Network (CAN) is considered. Recent works on CAN applications in automobile network show the advantage of reduction of wire size, wire length, simplified network structure and the flexibility. The grouping of electrical loads should be considered prior to actual hardware implementation of the CAN network to maximize the effectiveness of the network. This paper suggests the design flow of electrical load grouping in the over CAN network design. And the actual implementation of the CAN network with the design flow suggested in the paper is presented as result of joint project of Seoul National University and Hyundai Motor Company.
전압 및 전류 모니터링을 이용한 차량 내 IPS(intelligent power switch) 진단 시스템에 관한 연구
이재철(Jaechul Lee),김일구(Ealgoo Kim),김학봉(Hakbong Kim),Shiva Ram Krishina,박재홍(Jaehong Park) 한국자동차공학회 2006 한국자동차공학회 Symposium Vol.- No.-
This paper presents the design of hardware and software of CAN communication based IPS (Intelligent Power Switch) evaluation system and its application to evaluation of real IPS module in developing car. The evaluation system performs the evaluation automatically which are switching the load on or off, reading IPS load voltage and current, changing the connection of IPS to different states automatically, analyzing the IPS current, voltage and CAN messages which contain diagnostic feedback from IPS module.
차량환경에서의 와이어 종류에 따른 커플링 노이즈 계산과 저감 방안에 대한 연구
송승우(Seungwoo Song),김일구(Ealgoo Kim),Trinh Qui Ngoc,이태연(Taeyoen Lee),박재홍(Jaehong Park) 한국자동차공학회 2006 한국자동차공학회 Symposium Vol.- No.-
In this paper, noise between each type of wires in automotive is considered. Characteristic of coupling noise for each wire types is different. For different wire types like normal wire, twisted pair and shielded wire, the noise coupling varies. The noise for each wire type is calculated using models for near end and far end cases. The magnitude of coupling noise form noise source to each wire as noise receptor can be calculated with overlapped length and distance between source and receptor wires. This paper treats modeling of coupling between two wires and calculation of coupling noise. Result of this paper can be used as methods of wiring design to avoid noise problem.
엔진 크랭크 축의 Tooth time 변동을 이용한 실화 검출 방법에 대한 연구
성진호(Jin-ho Sung),김동선(Dongsun Kim),박재홍(Jaehong Park),이태연(Taeyeon Lee),김일구(Ealgoo Kim),임지훈(Jihoon Lim),윤형진(Hyoungjin Yun),정연광(Yeonkwang Jung),이재형(Jaehyoung Lee),박진서(Jinseo Park),김창현(Changhyeon Kim),박진홍( 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, the misfire detection method using the tooth time fluctuation of engine crankshaft is proposed. In the normal explosion stroke, tooth times are decreased, then in other strokes tooth times are increased. But if the misfire occurs, tooth times can not be reduced. For the realtime application to the ECU logic, tooth times before explosion and after explosion is only analyzed. The proposed method is applied to the Hyundai ecu logic and verified from the experiment..
가중치를 이용한 실화 검출 알고리즘의 성능 향상에 대한 연구
임지훈(Jihoon Lim),김동선(Dongsun Kim),이태연(Taeyeon Lee),김일구(Ealgoo Kim),홍성률(Sungrul Hong),성진호(Jinhoo Sung),박재홍(Jaehong Park),윤형진(Hyungjin Yoon),정연광(Yeongwang Jeong),이재형(Jaehyung Lee),박진서(Jinseo Park),김창현(Ch 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper presents a misfire monitoring method by using the weight factor. In this misfire monitoring method, the ECU performs misfire detection better than original method when there is misfire in "misfire no detection range". The weight factor is determined the time after a detection the real misfire. The probability of misfire detection for this algorithm is calculated and the results show the feasibility of the algorithm. The experimental results also show that the presented algorithm has better detection probability.
접촉 ESD 보호를 위한 세라믹 캐패시터의 내압 및 용량 선정에 관한 연구
이재철(Jaechul Lee),한장원(Jangwon Han),김일구(Ealgoo Kim),임종석(Jongseok Lim),이진구(Genekoo Lee),박재홍(Jaehong Park) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
In recent years, electrical reliability test specification including ESD(Electro-static Discharge) protection has been more strict as demand of automotive safety increases. A ceramic capacitor is generally used for ESD protection because of its low cost and stable performance. The capacity value and voltage rating are most important characteristics to implement an ESD protection circuit with a ceramic capacitor. Nevertheless, it has been designed based on experience of design engineer and experiments with trial and error method. In this paper, it provides proper capacity and voltage rating analysis to design protection circuit for various reliability requirements easily, and verify the result with an experiment. To do this, it analyze voltage characteristic of protection circuit with indefinite resistance load and capacitor using HBM(Human-Body Model). And we simulate the voltage and current with certain value using MATLAB, and it shows how to select the proper value of capacity and voltage rating. And it verifies its result based on the experiment result.