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:
Mar. 15, 2022
Filed:
May. 21, 2019
Johnson Controls Technology Company, Auburn Hills, MI (US);
Camille M. Aucoin, Milwaukee, WI (US);
Brennan H. Fentzlaff, Oconomowoc, WI (US);
Homero L. Noboa, Waukesha, WI (US);
Duane S. Freimuth, Franklin, WI (US);
Kirk H. Drees, Cedarburg, WI (US);
Kenneth J. Sieth, Delafield, WI (US);
Justin M. Salerno, Menomonee Falls, WI (US);
Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US);
Abstract
A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. An actuator drive device is driven by an actuator motor and is coupled to the valve for driving the valve between multiple positions. The system further includes a differential pressure sensor configured to measure a differential pressure across the valve and a controller that is communicably coupled with the differential pressure sensor and the motor. The controller is configured to receive a flow rate setpoint and the differential pressure measurement, determine an estimated flow rate based on the differential pressure measurement, determine an actuator position setpoint using the flow rate setpoint and the estimated flow rate, and operate the motor to drive the drive device to the actuator position setpoint.