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자동차 공조장치의 가변압축기 ECV 유량 분석

Analysis of flow rate of variable displacement compressor ECV in automobile air conditioning control system

  • 정준영 (공주대학교 기계자동차공학부) ;
  • 조행묵 (공주대학교 기계자동차공학부)
  • Jeong, Yeong Jun (Division of Mechanical and Automotive Engineering, Kongju National University (KNU)) ;
  • Cho, Haeng Muk (Division of Mechanical and Automotive Engineering, Kongju National University (KNU))
  • 투고 : 2013.10.04
  • 심사 : 2013.12.10
  • 발행 : 2013.12.31

초록

최근들어 자동차에어콘 콤프레셔의 전기마그네트식 콘트롤밸브는 내부형 스워시 프레이트형을 사용하고 있다. 이 시스템은 외부로부터 공급되는 전류량(신호)에 의하여 작동되며 동시에 스워시판 작동에 의한 압력은 냉매가 흐르는 비율에 의하여 결정된다. 본 논문에서는 압축기의 크랭크케이스 압력이 전기마그네트 콘트롤 밸브 전기 흐름량에 따른 유량의 값을 측정하여 엔진의 효율을 향상시키고자 한다.

At present, using of electromagnetic control valve (ECV) in external variable displacement swash plate type compressor is a common issue. Solenoid operated ECV controls vehicle air conditioning system through a pulse width modulation (PWM) input signal that supplied from an external source. Different port pressure controls the swash plate movement inside the compressor at certain angles that finally determines the refrigerant flow rate to the vehicle compartment for passengers comfort. In this paper, crankcase pressure flow (Pc flow) is calculated with some ECV samples with corresponding to amount of variable supply of current ranges from 0.20Amp to 0.95Amp.

키워드

참고문헌

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