Electronic expansion valve (EEV) control system and method

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United States of America Patent

PATENT NO 10801760
APP PUB NO 20180031288A1
SERIAL NO

15660798

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Systems and methods to control an electronic expansion valve (EEV) of a vapor compression system are described. A heating ventilation, and air conditioning (HVAC) system includes control circuitry having a sensor. The control circuitry sets a control setpoint of a vapor compression system such that an electronic expansion valve operates across a first operating range. The control circuitry receives a signal from the sensor indicative of an operating condition of the vapor compression system. The control circuitry adjusts the control setpoint based at least in part on the operating condition. The control circuitry controls operation of the electronic expansion valve based at least in part on the adjusted control setpoint, wherein the electronic expansion valve operates across a second operating range, different from the first operating range, at the adjusted control setpoint.

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Patent Owner(s)

  • JOHNSON CONTROLS TECHNOLOGY COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eskew, Robert L Kingman, US 10 48
Hern, Shawn A Park City, US 39 219
Nichols, Jeffrey N Wichita, US 9 71
Rigg, Brian D Douglass, US 58 916

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