REFRIGERATION CYCLE APPARATUS, REFIGERANT LEAK DETECTION SYSTEM, AND INFORMATION PROCESSING APPARATUS
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Jun 22, 2021
filing date -
Jun 22, 2021
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Abstract
A refrigeration cycle apparatus includes an air conditioner, sensors, and processing circuitry. The processing circuitry determines a predicted opening of the electronic expansion valve of the air conditioner based on outputs of the sensors and an operation frequency of the compressor, assuming normal operation of the air conditioner. The processing circuitry calculates a prediction error by subtracting a measured opening of the electronic expansion valve from the predicted opening. The processing circuitry calculates multiple prediction errors in advance, calculates an offset value as an average of the multiple prediction error, and outputs a corrected prediction error by subtracting the offset value from the current prediction error. The processing circuitry detects a refrigerant leak of the air conditioner based on the corrected prediction error.
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