Invention Grant
- Patent Title: Integrated smart actuator and valve device
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Application No.: US15685924Application Date: 2017-08-24
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Publication No.: US10359208B2Publication Date: 2019-07-23
- Inventor: Kirk H. Drees , Herbert J. Doll , Gerald A. Duenkel , Marcello Passoni
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Foley & Lardner LLP
- Main IPC: F24F11/76
- IPC: F24F11/76 ; F24F11/30 ; F24F11/77 ; F24F11/62 ; F24F11/83 ; F24F11/56 ; F24F110/30 ; F24F110/10 ; F24F11/32 ; F24F11/84 ; F24F140/12 ; F24F130/40

Abstract:
A cascaded control system configured to modify an environmental condition of a building includes a valve configured to regulate a flow of a fluid through a conduit, an actuator including a motor and a drive device, and a communications mechanism. The communications mechanism is configured to receive a flow rate setpoint from an external control device of an outer control loop. The cascaded control system further includes a processing circuit coupled to the motor and the communications mechanism. The processing circuit is configured to determine an actuator position setpoint using a cascaded feedback control mechanism based on the flow rate setpoint and a flow rate measurement from a flow rate sensor of an inner control loop and to operate the motor to drive the drive device to the actuator position setpoint.
Public/Granted literature
- US20180187909A1 INTEGRATED SMART ACTUATOR AND VALVE DEVICE Public/Granted day:2018-07-05
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