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公开(公告)号：US11226053B2
公开(公告)日：2022-01-18
申请号：US16115508
申请日：2018-08-28
Applicant: Johnson Controls Technology Company
Inventor： Homero L. Noboa , Brennan Fentzlaff , Camille M. Aucoin , Carlos Felipe Alcala Perez
Abstract: A pressure disturbance rejection valve assembly is provided. The valve assembly includes a valve, a flow rate sensor, and an actuator. The actuator includes a motor, a drive device configured to be driven by the motor and coupled to the valve for driving the valve within a range of positions, and a position sensor configured to measure a rotational position of the drive device. The actuator further includes a communications mechanism configured to receive a flow rate setpoint and a processing circuit. The processing circuit is configured to determine an actuator position setpoint using a feedback control mechanism based on the flow rate setpoint and the flow rate measurement, operate the motor to drive the drive device to the actuator position setpoint, detect a fault condition based at least in part on the rotational position measurement or the flow rate measurement, and perform a fault mitigation action in response to detection of the fault condition.
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公开(公告)号：US20200072373A1
公开(公告)日：2020-03-05
申请号：US16115508
申请日：2018-08-28
Applicant: Johnson Controls Technology Company
Inventor： Homero L. Noboa , Brennan Fentzlaff , Camille M. Aucoin , Carlos Felipe Alcala Perez
Abstract: A pressure disturbance rejection valve assembly is provided. The valve assembly includes a valve, a flow rate sensor, and an actuator. The actuator includes a motor, a drive device configured to be driven by the motor and coupled to the valve for driving the valve within a range of positions, and a position sensor configured to measure a rotational position of the drive device. The actuator further includes a communications mechanism configured to receive a flow rate setpoint and a processing circuit. The processing circuit is configured to determine an actuator position setpoint using a feedback control mechanism based on the flow rate setpoint and the flow rate measurement, operate the motor to drive the drive device to the actuator position setpoint, detect a fault condition based at least in part on the rotational position measurement or the flow rate measurement, and perform a fault mitigation action in response to detection of the fault condition.
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