• Title/Summary/Keyword: 기계 정밀도

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Portfolio-일림나노텍(주) 박효찬 대표

  • Korea Venture Business Association
    • Venture DIGEST
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    • s.119
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    • pp.8-11
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    • 2008

  • 창원에 위치한 일림나노텍(주)은 20년이 넘는 세월동안 소형정밀 기계 및 부품 사업 분야에서 입지를 굳혀왔다. 4반세기를 앞두고 차세대 정밀기계산업 분야에 새로운 도전장을 내민 박효찬 대표를 만나 그의 사업과 경영 이야기를 듣는다.

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A Study on the Analysis of Dynamic Characteristics of the Solenoid Valve of Automatic Transmission (A/T용 솔레노이드 밸브의 동특성 해석에 관한 연구)

  • Song, Chang-Seop;Lee, Yong-Ju;You, Se-Joon
    • Journal of the Korean Society for Precision Engineering
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    • v.12 no.8
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    • pp.122-130
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    • 1995

  • To reduce the shock in shifting, the clutches and the brakes in automatic transmission have to be connected smoothly and disconnected rapidly. It is PCSV(Pressure Control Solenoid Valve) that paly this role of automatic transmission. In this paper, there were two steps in the analysis of the PCSV. The first step was modeling the elctromagnet by the permeance method. The second step was modeling the hydraulic circuit by the pressure differential equa- tion. In addition to this modeling, a experiment was performed and the commercial package program was used in order to justify modeling. The result of modeling coincide with the result of experiment and commercial package program. As a result, this modeling is usable in analysis of dynamic characteristics of the PCSV.

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