The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2022
Filed:
Mar. 12, 2020
Carrier Corporation, Palm Beach Gardens, FL (US);
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
A fault detection method for an air conditioning system is provided by the present disclosure. The air conditioning system has a liquid pump and an injector. The fault detection method includes: automatically learning to obtain a monotonically decreasing fault detection characteristic curve Y=K(X−XMAX)+A by using an electrical power consumption of the liquid pump and a high-pressure-side pressure of the injector; wherein when Y and A are 0, X corresponds to a maximum high-pressure-side pressure Xmax of the injector; and when the current pressure of the injector Xcurrent≤Xmax: if the current electrical power consumption Ycurrent<K(Xcurrent−Xmax)+A, then a probability of the injector state of the air conditioning system being normal is greater than a first preset value; and if the current electrical power consumption Ycurrent>K(Xcurrent−Xmax)+A, a probability of the injector of the air conditioning system having a fault is greater than a second preset value.