Vehicle air-conditioning unit with an electronic control device
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2006
app pub date -
May 23, 2003
filing date -
May 31, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention proposes an air conditioning installation having both an air conditioning apparatus and an electronic printed circuit. The installation also includes measuring means which are adapted to transmit values to the electronic circuit for estimation of a first value relating to the temperature (Tin) of the liquid at the input to the expansion unit, a second value relating to the inlet pressure (Pin) of the expansion unit, and a third value relating to the outlet pressure (Pout) of the expansion unit. The electronic circuit is adapted to calculate the value of the mass flow (MOT) of the refrigerant fluid into the expansion unit from the estimate of the first, second and third values. From this value of the mass flow (MOT) of the refrigerant fluid into the expansion unit and the estimate of the third value (Pout), the electronic circuit is able to estimate the power absorbed by the compressor.
First Claim
Family
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Cited Art Landscape
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