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:
- Issue Date:
- Research Org.:
- Whirlpool Corporation, Benton Harbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1334649
- Patent Number(s):
- 9513043
- Application Number:
- 13/531,707
- Assignee:
- Whirlpool Corporation (Benton Harbor, MI)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- 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.. Tue .
"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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {12}
}