A control-oriented model of transcritical air-conditioning system dynamics

Bryan Rasmussen, Andy Musser, Andrew Alleyne, Clark Bullard, Pega Hrnjak, Norman Miller

Research output: Contribution to journalConference articlepeer-review


This paper presents a dynamic model of a transcritical air-conditioning system, specifically suited for multivariable controller design. The physically-based model retains sufficient detail to accurately predict system dynamic response while also being simple enough to be of value in determining appropriate control strategies. The control focus would be quasi-steady transitions between operating states by modulating flow rates of both air and refrigerant to meet changing constraints on capacity, efficiency, noise, etc. The model structure is highly modular, accommodating various system configurations and component types. The modeling results are programmed as a library of components for use in Simulink, a graphical programming package.

Original languageEnglish (US)
JournalSAE Technical Papers
StatePublished - 2002
EventSAE 2002 World Congress - Detroit, MI, United States
Duration: Mar 4 2002Mar 7 2002

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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