Method for Controlling or Regulating a Coolant Circuit of a Motor Vehicle Air Conditioning System
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United States of America Patent
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app pub date -
Apr 11, 2017
filing date -
Oct 17, 2014
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Abstract
A method and a correspondingly designed device are provided for controlling or regulating a coolant circuit of an air conditioning system, which includes at least one compressor, at least one condenser or gas cooler, and at least one evaporator. A controllable coolant expansion device is connected to the coolant inlet of the evaporator. It is detected when the coolant circuit is under filled with a coolant and, when an under filling of the coolant is detected, the control strategy of the expansion device is changed.
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