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:
May. 24, 2022
Filed:
Nov. 15, 2017
Danfoss A/s, Nordborg, DK;
Frede Schmidt, Sønderborg, DK;
Jan Prins, Nordborg, DK;
Kristian Fredslund, Haderslev, DK;
Kenneth Bank Madsen, Nordborg, DK;
Danfoss A/S, Nordborg, DK;
Abstract
A method for controlling a vapour compression system () is disclosed. A mass flow of refrigerant along a part of the refrigerant path is estimated, based on measurements performed by one or more pressure sensors () for measuring a refrigerant pressure at selected positions along the refrigerant path and one or more temperature sensors () for measuring a refrigerant temperature at selected positions along the refrigerant path. A refrigerant pressure or a refrigerant temperature at a selected position a pressure sensor () or temperature sensor () along the refrigerant path is derived, based on the estimated mass flow. The vapour compression system () is allowed to continue operating, even if a sensor () is malfunctioning or unreliable.