Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of leakage factors affecting ECV performance in variable compressor

  • Mahmud, Md. Iqbal (Division of Mechanical and Automotive Engineering, Kongju National University (KNU)) ;
  • Cho, Haeng Muk (Division of Mechanical and Automotive Engineering, Kongju National University (KNU))
  • Received : 2014.08.22
  • Accepted : 2014.12.05
  • Published : 2014.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Solenoid operated electromagnetic control valve (ECV) using in an external variable displacement swash plate type compressor is widely used for air conditioning control system because of its low energy consumption and high efficient characteristics. ECV controls the entire vehicle air conditioning system by means of a pulse width modulation (PWM) system that supplied from an external controller. Different pressure ports located within ECV has important functions to control the air/refrigerant flow through its internal passages. The flow paths are preciously maintained with acceptable ranges of leakage (gap) between the parts inside it which is followed by effective design and critical dimensioning of its internal features. Therefore, it saves energy losses from the solenoid operation as well as ensures the balance of forces within it. The research paper highlights analysis of the leakages (at different pressure ports) and dimensioning tolerance factors that affects the ECV performance.

Keywords

References

  1. Y. J. Lee, G. H. Lee and B. E. Lim, "Noise Evaluation of a Control Valve in a Variable Compressor", 4th International Conference on Sustainable Automotive Technologies, RMIT University, Melbourne, Australia, (2012), p337-341.
  2. Y. Huang, R. J. Callahan, S. A. Harte, and L. W. Smith, "Electronic control strategy for A/C compressor", United States Patent no. 6675592B2. (2004).
  3. S. V. Angadi, R. L. Jackson, S. Y. Choe, G. T. Flowers, J. C. Suhling, Y. K. Chang and J. K. Ham, "Reliability and life study of hydraulic solenoid valve. Part 1: A multiphysics finite element model", Engineering Failure Analysis, 16 (2009), p874-887. https://doi.org/10.1016/j.engfailanal.2008.08.011
  4. C. Y. Tseng and C. F. Lin, "A simple method for automotive switching type solenoid valve stuck fault detection", International Journal of Heavy Vehicle System, Vol. 14, No. 1 (2007), p20-35. https://doi.org/10.1504/IJHVS.2007.011794
  5. B. H. Dwiggins, "Automotive Air Conditioning", 8th edition, Thomson Learning Inc. New York, USA (2002).
  6. Y. Takano, H. Kishita, K. Yamasaki and Y. Niimi, "Compressor control device for vehicle air conditioner", United States Patent no. 5867996A (1999).
  7. U. Satoshi, H. Tatsuya, M. Kazuhiko, H. Yuji, N. Masami and O. Masaki, "Control valve of variable displacement compressor", United States Patent no. 6637228 (2003).
  8. G. S. Lee, H. J. Sung and H. C. Kim, "Multiphysics analysis of a linear control solenoid valve", Journal of Fluids Engineering, Transactions of the ASME, 135/011104 (2013), p1-10.
  9. Md. Iqbal Mahmud and Haeng Muk Cho, "Analysis of forces in an automobile ECV using in external variable displacement swash plate type compressor for air conditioning control system", Journal of Mechanical Science and Technology, Vol. 28, No. 5 (2014), p1979-1984. https://doi.org/10.1007/s12206-014-0346-5