公开(公告)号：US11274850B2

公开(公告)日：2022-03-15

申请号：US16418887

申请日：2019-05-21

Applicant: Johnson Controls Technology Company

Inventor： Camille M. Aucoin ,  Brennan H. Fentzlaff ,  Homero L. Noboa ,  Duane S. Freimuth ,  Kirk H. Drees ,  Kenneth J. Sieth ,  Justin M. Salerno

IPC: F24F11/74 ,  F24F11/63 ,  F24F11/30 ,  G01F1/34 ,  G05D23/19 ,  F16K37/00 ,  F24F110/40

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.

公开(公告)号：US20190353385A1

公开(公告)日：2019-11-21

申请号：US16418887

申请日：2019-05-21

Applicant: Johnson Controls Technology Company

Inventor： Camille M. Aucoin ,  Brennan H. Fentzlaff ,  Homero L. Noboa ,  Duane S. Freimuth ,  Kirk H. Drees ,  Kenneth J. Sieth ,  Justin M. Salerno

IPC: F24F11/74 ,  F24F11/63 ,  F16K37/00 ,  F24F11/30 ,  G01F1/34 ,  G05D23/19

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.