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Title: Fault detection and diagnosis for refrigerator from compressor sensor

Abstract

A refrigerator, a sealed refrigerant system, and method are provided where the refrigerator includes at least a refrigerated compartment and a sealed refrigerant system including an evaporator, a compressor, a condenser, a controller, an evaporator fan, and a condenser fan. The method includes monitoring a frequency of the compressor, and identifying a fault condition in the at least one component of the refrigerant sealed system in response to the compressor frequency. The method may further comprise calculating a compressor frequency rate based upon the rate of change of the compressor frequency, wherein a fault in the condenser fan is identified if the compressor frequency rate is positive and exceeds a condenser fan fault threshold rate, and wherein a fault in the evaporator fan is identified if the compressor frequency rate is negative and exceeds an evaporator fan fault threshold rate.

Inventors:
; ;
Publication Date:
Research Org.:
Whirlpool Corporation, Benton Harbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1334649
Patent Number(s):
9,513,043
Application Number:
13/531,707
Assignee:
Whirlpool Corporation (Benton Harbor, MI)
DOE Contract Number:  
EE0003910
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Jun 25
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Keres, Stephen L., Gomes, Alberto Regio, and Litch, Andrew D. Fault detection and diagnosis for refrigerator from compressor sensor. United States: N. p., 2016. Web.
Keres, Stephen L., Gomes, Alberto Regio, & Litch, Andrew D. Fault detection and diagnosis for refrigerator from compressor sensor. United States.
Keres, Stephen L., Gomes, Alberto Regio, and Litch, Andrew D. 2016. "Fault detection and diagnosis for refrigerator from compressor sensor". United States. https://www.osti.gov/servlets/purl/1334649.
@article{osti_1334649,
title = {Fault detection and diagnosis for refrigerator from compressor sensor},
author = {Keres, Stephen L. and Gomes, Alberto Regio and Litch, Andrew D.},
abstractNote = {A refrigerator, a sealed refrigerant system, and method are provided where the refrigerator includes at least a refrigerated compartment and a sealed refrigerant system including an evaporator, a compressor, a condenser, a controller, an evaporator fan, and a condenser fan. The method includes monitoring a frequency of the compressor, and identifying a fault condition in the at least one component of the refrigerant sealed system in response to the compressor frequency. The method may further comprise calculating a compressor frequency rate based upon the rate of change of the compressor frequency, wherein a fault in the condenser fan is identified if the compressor frequency rate is positive and exceeds a condenser fan fault threshold rate, and wherein a fault in the evaporator fan is identified if the compressor frequency rate is negative and exceeds an evaporator fan fault threshold rate.},
doi = {},
url = {https://www.osti.gov/biblio/1334649}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {12}
}