US 11,920,843 B2
Chiller suction flow limiting with input power or motor current control
Shimin Sheng, Wuxi (CN); Xiuping Su, Wuxi (CN); Shenglong Wang, York, PA (US); Curtis Christian Crane, York, PA (US); Mark Robinson Bodell, II, York, PA (US); and Justin Patrick Kauffman, York, PA (US)
Assigned to Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Nov. 14, 2022, as Appl. No. 17/986,666.
Application 17/986,666 is a continuation of application No. 17/059,963, granted, now 11,499,768, previously published as PCT/CN2018/089063, filed on May 30, 2018.
Prior Publication US 2023/0144991 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F25B 49/02 (2006.01); F25B 1/00 (2006.01)
CPC F25B 49/022 (2013.01) [F25B 1/00 (2013.01); F25B 2339/02 (2013.01); F25B 2500/28 (2013.01); F25B 2600/024 (2013.01); F25B 2700/195 (2013.01); F25B 2700/197 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller for a heating, ventilation, and air conditioning (HVAC) system, comprising:
one or more processors; and
a memory device storing computer-readable instructions that, when executed by the one or more processors, cause the one or more processors to:
receive first data from a first sensor, wherein the first data is indicative of a first pressure within an evaporator of the HVAC system;
receive second data from a second sensor, wherein the second data is indicative of a second pressure within a condenser of the HVAC system;
determine a predicted energy level of operation of a compressor of the HVAC system based on the first pressure and the second pressure, wherein operation of the compressor at the predicted energy level is expected to cause liquid droplet flow from the evaporator to the compressor;
determine an actual operating energy level of the compressor; and
adjust operation of the compressor based on a comparison of the predicted energy level and the actual operating energy level.