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Reducing the fuel consumption by speed control of the air-conditioning compressor.

Author(s) : BAUMGART R., TENBERGE P.

Summary

For compliance with future emission regulations, fuel consumption of vehicles must be reduced. This is only possible by an improvement of each car component, for example the air-conditioning system. At the Chemnitz University of Technology, computer programs for detailed simulation of the whole refrigeration cycle and the thermal behaviour in the cabin were developed. With these, several modifications concerning the fuel saving potential can be analyzed and evaluated. Today's air conditioning compressors are driven by a constant transmission ratio by the crankshaft. A gearbox which is integrated in the compressor pulley offers a possibility for reducing fuel consumption. Depending on the engine speed and the refrigerating capacity, the compressor could be run at an operating point with lower driving power. This speed control was analyzed with the simulation programs mentioned above. The results are shown in the article.

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Details

  • Original title: Reducing the fuel consumption by speed control of the air-conditioning compressor.
  • Record ID : 2008-2716
  • Languages: English
  • Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2008/07/14

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