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公开(公告)号：US11624524B2
公开(公告)日：2023-04-11
申请号：US16730798
申请日：2019-12-30
Applicant: Johnson Controls Technology Company
Inventor： Homero L. Noboa , Kirk H. Drees , Jack A. Peterson , Brennan H. Fentzlaff
Abstract: A method for calibrating a flow sensor in a heating, ventilation, or air conditioning (HVAC) system. The method includes receiving, at a controller, a request to enter a calibration mode and, in response to receiving the request, automatically commanding a flow control device to achieve a target flow rate. The method further includes generating, by the controller, calibration data for the flow sensor using a reference flow value of the flow rate when the flow control device has achieved the target flow rate and a corresponding flow measurement from the flow sensor.
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2.发明申请公开(公告)号：US20210325274A1
公开(公告)日：2021-10-21
申请号：US16849739
申请日：2020-04-15
Applicant: Johnson Controls Technology Company
Inventor： John Scholten , Jon Douglas , Jack A. Peterson
Abstract: An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes the air duct having an interior wall and an exterior wall, a high pressure pickup device, a low pressure pickup device, a pressure redirection device, and a pressure sensor. The pressure redirection device is fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a low inlet, a high inlet, and a common outlet. The pressure sensor is selectively fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a first inlet and a second inlet. The second inlet is fluidly coupled to the common outlet of the pressure redirection device.
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公开(公告)号：US11415335B2
公开(公告)日：2022-08-16
申请号：US16516070
申请日：2019-07-18
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Kirk H. Drees , Brennan H. Fentzlaff , Homero L. Noboa , Brett M. Lenhardt
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. The actuator includes a motor and a drive device that is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor and a controller that is communicably coupled with the flow rate sensor and the motor. The controller is configured to receive a first flow rate setpoint, determine a first actuator position setpoint using a proportional variable deadband control technique based on the first flow rate setpoint and a flow rate measurement, and receive a second flow rate setpoint. In response to a determination that certain low flow criteria are satisfied, the controller is configured to determine a second actuator position setpoint using the proportional variable deadband control technique based on a low flow compensation setpoint.
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Patent Agency Ranking
公开(公告)号：US11068000B2
公开(公告)日：2021-07-20
申请号：US16509264
申请日：2019-07-11
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Brett M. Lenhardt , Homero L. Noboa , Brennan H. Fentzlaff
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 flow rate sensor configured to measure the flow rate of the fluid through the valve and a controller that is communicably coupled with the flow rate sensor. The controller is configured to receive a flow rate measurement from the flow rate sensor, adjust a control deadband based on an actuator command history, and determine a compensated position setpoint using the flow rate measurement, the adjusted control deadband, and a proportional variable deadband control technique. The controller is further configured to operate the motor to drive the drive device to the compensated actuator position setpoint.
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公开(公告)号：US20210018214A1
公开(公告)日：2021-01-21
申请号：US16516070
申请日：2019-07-18
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Kirk H. Drees , Brennan H. Fentzlaff , Homero L. Noboa , Brett M. Lenhardt
Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. The actuator includes a motor and a drive device that is coupled to the valve for driving the valve between multiple positions. The system further includes a flow rate sensor and a controller that is communicably coupled with the flow rate sensor and the motor. The controller is configured to receive a first flow rate setpoint, determine a first actuator position setpoint using a proportional variable deadband control technique based on the first flow rate setpoint and a flow rate measurement, and receive a second flow rate setpoint. In response to a determination that certain low flow criteria are satisfied, the controller is configured to determine a second actuator position setpoint using the proportional variable deadband control technique based on a low flow compensation setpoint.
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6.发明授权公开(公告)号：US11630019B2
公开(公告)日：2023-04-18
申请号：US16849739
申请日：2020-04-15
Applicant: Johnson Controls Technology Company
Inventor： John Scholten , Jon Douglas , Jack A. Peterson
IPC: G01L27/00 , F15B19/00 , G01F1/36 , G01F25/10 , F24F110/40
Abstract: An airflow sensor assembly for an air duct is provided. The airflow sensor assembly includes the air duct having an interior wall and an exterior wall, a high pressure pickup device, a low pressure pickup device, a pressure redirection device, and a pressure sensor. The pressure redirection device is fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a low inlet, a high inlet, and a common outlet. The pressure sensor is selectively fluidly coupled to the high pressure pickup device and the low pressure pickup device and includes a first inlet and a second inlet. The second inlet is fluidly coupled to the common outlet of the pressure redirection device.
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公开(公告)号：US20210199330A1
公开(公告)日：2021-07-01
申请号：US16730798
申请日：2019-12-30
Applicant: Johnson Controls Technology Company
Inventor： Homero L. Noboa , Kirk H. Drees , Jack A. Peterson , Brennan H. Fentzlaff
Abstract: A method for calibrating a flow sensor in a heating, ventilation, or air conditioning (HVAC) system. The method includes receiving, at a controller, a request to enter a calibration mode and, in response to receiving the request, automatically commanding a flow control device to achieve a target flow rate. The method further includes generating, by the controller, calibration data for the flow sensor using a reference flow value of the flow rate when the flow control device has achieved the target flow rate and a corresponding flow measurement from the flow sensor.
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公开(公告)号：US20210011497A1
公开(公告)日：2021-01-14
申请号：US16509264
申请日：2019-07-11
Applicant: Johnson Controls Technology Company
Inventor： Jack A. Peterson , Brett M. Lenhardt , Homero L. Noboa , Brennan H. Fentzlaff
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 flow rate sensor configured to measure the flow rate of the fluid through the valve and a controller that is communicably coupled with the flow rate sensor. The controller is configured to receive a flow rate measurement from the flow rate sensor, adjust a control deadband based on an actuator command history, and determine a compensated position setpoint using the flow rate measurement, the adjusted control deadband, and a proportional variable deadband control technique. The controller is further configured to operate the motor to drive the drive device to the compensated actuator position setpoint.
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