Patent · US Active

Adaptive valve control system

US10082216B1 · kind B1 · utility

2Cited by

0References

18Claims

0Family size

Assignee

Johnson Controls Technology Company · US

Inventors

Nicholas S. Van Derven · Wauwatosa, US
Kraig D. Ritmanich · Brookfield, US
Peter Wawer · Dresden, DE

Key dates

Filing date	Jul 21, 2017
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Jul 21, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2600/2513
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

Disclosed is a system to dynamically operate a valve including a direct current (DC) stepper motor. The system includes a valve detector to identify the valve and to determine whether the valve is operable in multiple operating modes. The system further includes a mode selector electrically coupled to the valve detector. The mode selector selects an operating mode from the multiple operating modes. The system further includes a current selector electrically coupled to the mode selector. The current selector selects a target current level based on the selected operating mode. The system further includes a motor controller electrically coupled to the current selector and the DC stepper motor. The motor controller drives the DC stepper motor with a drive current at the selected target current level.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.