• Title/Summary/Keyword: Automotive

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A Study on Supply Chain Risk Management of Automotive (자동차 공급망 위험관리(A-SCRM) 방안 연구)

  • Kim, Dong-won;Han, Keun-hee;Jeon, In-seok;Choi, Jin-yung
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.25 no.4
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    • pp.793-805
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    • 2015
  • Due to the rise of automotive security problems following automotive safety and the progress of the internet technology leading to a hyper-connected society, guaranteeing the safety of automotive requires security plans in the supply chain assurance and automotive software, and risk management plans for identifying, evaluating, and controlling the risks that may occur from the supply chain since the modern automotive is a Safety Critical system. In this paper, we propose a study on Automotive Supply Chain Risk Management (A-SCRM) procedures by person interested within the automotive Life-Cycle.

An Experimental Study on Placements and Thickness of Damping Material for Vibration Control of Automotive Roof (자동차 루프의 진동제어를 위한 제진재의 위치 및 두께에 대한 실험적 연구)

  • Lee, Jeong-Kyun;Kim, Chan-Mook;Sa, Jong-Sung
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.6
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    • pp.31-37
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    • 2005
  • This paper presents an experimental study on vibration characteristics of an automotive roof with damping material. The goal of the study is to extract modal parameters(natural frequency, loss factor, and mode shape) of automotive roof with damping materials treatment. To determine the effective positions and thickness of the damping material on a roof, vibration tests have been carried out for six cases; an aluminum plate with damping material on maximum strain energy positions, and an aluminum plate with damping material on nodal lines. From the result of aluminum plate, it is found that the damping material should be placed on the location with maximum strain energy part. For the automotive roof, patches of constrained damping material, which has two different density, have been attached to the positions of the maximum strain energy with four kinds of thicknesses. This paper shows that the proper positioning of the damping material is very important and the effective thickness is about twice that of the roof panel.

A Research of Automotive Embedded System (차량용 임베디드시스템 기술동향)

  • Park, Sang-Hyun;Lee, Chul-Dong
    • Proceedings of the IEEK Conference
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    • 2009.05a
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    • pp.243-245
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    • 2009
  • In recent years, a development of automotive embedded systems called Intelligent Vehicle are used for control and communication with CAN protocol. But as various devices and protocols are developed for Vehicle communication and control, it becomes difficult to manage the systems that contain limitation of bandwidth and various control requirement. To solve these problems, we introduce a research of automotive embedded systems which is considered the automotive real time operating system, automotive communications, and control systems.

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The Status of Concurrent Engineering Systems in Foreign Automotive Companies (해외 자동차 업체의 CAD/CAM/CAE/PDM 통합 Engineering System)

  • 이민혁
    • CDE review
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    • v.4 no.2
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    • pp.36-41
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    • 1998
  • To survive in the intensive world wide automotive market, more and more automotive companies are investing their resources into concurrent engineering systems (CE) based on the combined CAD/CAM/CAE/ PDM technology. The main objectives of CE in automotive companies are the quality improvement of products and the reduction of cost and time to market. Remarkable effects are appearing from some of these companies. As shown in this paper, these successful automotive companies have been focusing on establishing the new process and methodology in applying CE into their car development process.

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PERFORMANCE EVALUATION OF FUZZY CONTROL THROUGH AN INTERNATIONAL BENCHMARK

  • Boverie, Serge;Demaya, Bemard;Lequellec, Jean-Michel;Titli, Andre
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1993.06a
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    • pp.941-944
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    • 1993
  • In this paper, we present an international benchmark used in the adaptive control specialist community in order to evaluated the fuzzy control performances. Before solving the corresponding problems, we introduce some improvements on a classic fuzzy controller in order to consider high order systems and time delays. At the end of this paper, the simulation results obtained with the extended Fuzzy Controller will be compared with those obtained with a Supervised Adaptive Controller.

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Micro computer-controlled automatic test method for automotive brake system (Micro computer를 이용한 자동차용 brake 시험 자동화 system에 대한 고찰)

  • 정화영
    • Journal of the korean Society of Automotive Engineers
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    • v.9 no.5
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    • pp.6-18
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    • 1987
  • Owing to remarkable development in automotive industry, vehicle performance comes close to perfection and guarantee of stability is getting emphasized in accordance with high speed trend in vehicle. In recent years, the utilization of automatic test method for research and development of automotive brake system is being propelled actively, which pursue whole automatic control from simple measurement to data acquisition. The main subject of this paper is to make a brief explanation on Micro computer controlled Automatic Test Method for Automotive Brake System which makes it possible to test with high accuracy and speed.

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Development of a Coating Machine for Making Automotive Seat Covers

  • Park, Hong-Seok;Dang, Xuan-Phuong
    • Transactions of the Korean Society of Automotive Engineers
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    • v.25 no.3
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    • pp.267-272
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    • 2017
  • Automotive seat covers with olefin film imported from foreign companies exhibit some problems such as low peeling strength and high burning rate. The traditional manufacturing process requires gas flame or direct heating for the laminating step. This paper introduces an alternative solution that replaces the olefin film and flame lamination method in making automotive seat covers or interior fabrics. We adopt a new manufacturing concept that applies a water-based resin coating to develop a coating system. The coating machine was successfully developed and tested. Results are intended to contribute to improving the quality and productivity of automotive seat cover production.

Current Rating of High Voltage Connectors used for High Efficiency Vehicles (친환경/고효율 자동차용 고전압 커넥터의 정격전류 산정)

  • Youn, Bok-Hee;Nho, Yong-Joon;Cho, Sei-Hoon;Kim, You-Min;Kim, Dae-Gee;Park, Wan-Ki
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.1488-1489
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    • 2007
  • This paper described the current rating methodology of high voltage connectors used for high efficient vehicles. Typically, temperature rise at rated current has been used to rate power contacts in automotive connector. However, for automotive applications, they are required to meet severe environmental conditions and high connector reliability. Therefore, it is very important to rate correctly an allowable current of automotive connector. We have measured the contact characteristics through current cycling at room temperature and at high temperature, as well as temperature rising and current carrying capacity by de-rating. From the above results, we have developed high reliable contacts with about 80 Amperes.

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