- Patent Title: Speed control of an HVAC compressor based on operational envelope
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Application No.: US17328868Application Date: 2021-05-24
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Publication No.: US11754304B2Publication Date: 2023-09-12
- Inventor: Aron M. Seiler , Nicholas P. Mislak , Chandra S. Yelamanchili , Rajiv K. Karkhanis , Nathan T. Ostrye
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
- Current Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
- Current Assignee Address: US WI Milwaukee
- Agency: Fletcher Yoder, PC
- Main IPC: F24F11/64
- IPC: F24F11/64 ; F24F11/38 ; F24F11/56 ; F24F11/61 ; F24F11/65 ; G05B19/042 ; F24F140/20

Abstract:
A heating, ventilation, and air conditioning (HVAC) system includes a compressor having a discharge port and a suction port, a first sensor configured to provide feedback corresponding to a first temperature of the working fluid exiting the compressor proximate the discharge port, a second sensor configured to provide feedback corresponding to a second temperature of the working fluid entering the compressor proximate the suction port, and an automation controller storing data indicative of an operational envelope. The operational envelope defines compressor operation coordinates corresponding to a range of suction temperatures and a range of discharge temperatures inside and outside of a target region of the operational envelope, and the automation controller is configured to control a target range of compressor speeds based on a comparison of the target region to an operation coordinate defined by the feedback from the first sensor and the feedback from the second sensor.
Public/Granted literature
- US20210278099A1 OPERATIONAL ENVELOPE CONTROL OF AN HVAC COMPONENT Public/Granted day:2021-09-09
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