Invention Grant
- Patent Title: Mass flow valve controller and control method with set point filter and linearization system based on valve model
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Application No.: US16116786Application Date: 2018-08-29
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Publication No.: US10969797B2Publication Date: 2021-04-06
- Inventor: John Lull , Berwin Banares , Jeffrey Whiteley
- Applicant: Illinois Tool Works Inc.
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works Inc.
- Current Assignee: Illinois Tool Works Inc.
- Current Assignee Address: US IL Glenview
- Agency: McGuireWoods LLP
- Main IPC: G05D7/06
- IPC: G05D7/06 ; G05B17/02

Abstract:
A valve control system that includes a gain controller for controlling the linear response of a valve. The system includes a linearization control system coupled to the gain controller to determine a gain value to control the linear response time of the valve and a set point filter coupled to the linearization control system to filter a set point value. The linearization control system determines the gain value from the filtered set point value, at least one real-time fluid parameter value, valve model data, an actuator gain, and a valve model gain.
Public/Granted literature
- US20200073415A1 MASS FLOW CONTROLLER, CONTROLLER ALGORITHM, AND SET POINT FILTER Public/Granted day:2020-03-05
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