公开(公告)号：US11761660B2

公开(公告)日：2023-09-19

申请号：US17181847

申请日：2021-02-22

Applicant: Johnson Controls Technology Company

Inventor： Kirk H. Drees ,  Timothy C. Gamroth ,  Craig E. Trivelpiece ,  Joseph Piccolo, III

IPC: F24F11/63 ,  G05B19/042 ,  F24F110/10 ,  F24F110/70 ,  F24F130/10 ,  F24F120/10

CPC classification number: F24F11/63 ,  G05B19/042 ,  F24F2110/10 ,  F24F2110/70 ,  F24F2120/10 ,  F24F2130/10 ,  G05B2219/2614

Abstract: A system for controlling air quality of a building space includes HVAC equipment configured to serve the building space, sensors configured to measure a plurality of parameters relating to the building space, and a control system. The control system is configured to receive data from the sensors, determine a feedforward air quality contribution, determine a feedback air quality contribution based on a measured air quality and an air quality setpoint for the building space, combine the feedforward air quality contribution and the feedback air quality contribution to determine a target amount of ventilation or filtration to be provided to the building space by the HVAC equipment, and control the HVAC equipment to provide the target amount of ventilation or filtration.

公开(公告)号：US11761646B2

公开(公告)日：2023-09-19

申请号：US17152541

申请日：2021-01-19

Applicant: Johnson Controls Technology Company

Inventor： Karan Garg ,  Mujibul R. Mohammad ,  Hambirarao S. Sawant ,  Anand M. Dulange ,  Amit R. Chothave ,  Anthony J. Reardon

IPC: F24F3/153 ,  F24F11/77 ,  F24F3/14 ,  F24F110/12

CPC classification number: F24F3/153 ,  F24F11/77 ,  F24F3/1429 ,  F24F2110/12 ,  F25B2339/04

Abstract: A heating, ventilation, and air conditioning (HVAC) system includes a reheat valve configured to receive a refrigerant flow and regulate division of the refrigerant flow provided to a reheat coil and a condenser. The HVAC system also includes a condenser fan configured to draw a flow of outdoor air across the condenser and a controller communicatively coupled to the reheat valve and the condenser fan. The controller is configured to monitor a position of the reheat valve and to control operation of the condenser fan based on a correspondence between the position of the reheat valve and a threshold degree of opening.

公开(公告)号：US11759742B2

公开(公告)日：2023-09-19

申请号：US16287809

申请日：2019-02-27

Applicant: Johnson Controls Technology Company

Inventor： Zhiwei Huang ,  Curtis A. Trammell

IPC: B01D46/42 ,  B01D46/00 ,  B01D46/12 ,  B01D46/40 ,  B01D46/44 ,  F24F13/28 ,  F24F6/12 ,  F24F11/89 ,  B01D46/58 ,  B01D46/79 ,  F24F110/10

CPC classification number: B01D46/4227 ,  B01D46/12 ,  B01D46/40 ,  B01D46/446 ,  B01D46/448 ,  B01D46/58 ,  B01D46/79 ,  F24F6/12 ,  F24F11/89 ,  F24F13/28 ,  B01D2267/30 ,  B01D2267/60 ,  B01D2273/14 ,  B01D2277/20 ,  B01D2277/30 ,  B01D2279/50 ,  F24F2110/10 ,  F24F2221/225

Abstract: The present disclosure relates generally to air intake filter assemblies, and more particularly to air intake assemblies for an outdoor portion of a heating, ventilation, and/or air conditioning (HVAC) system. In an embodiment, a filter assembly is configured to filter an airflow entering an air intake of a HVAC unit. The filter assembly includes a support structure and a plurality of filter slats, each having a fine filtration material, each disposed within the support structure, and wherein the plurality of filter slats is configured in a louvered relationship and actuated between a closed configuration through which the airflow passes and an open configuration through which the airflow passes.

公开(公告)号：US11755745B2

公开(公告)日：2023-09-12

申请号：US16774513

申请日：2020-01-28

Applicant: Johnson Controls Technology Company

Inventor： Nidhi Sharma ,  Sreekesh Sreelal ,  Pushpendra Singh Kharsan

IPC: G06F21/57 ,  G16Y30/10 ,  G06F21/56 ,  G06F21/55

CPC classification number: G06F21/577 ,  G06F21/554 ,  G06F21/565 ,  G16Y30/10

Abstract: A method includes storing a golden copy of a device tree binary of a system in a trusted execution environment, identifying whether one or more parameters of a running copy of a device tree binary of the system are different from corresponding parameters of the golden copy by comparing the running copy with the golden copy, and performing a corrective action responsive to an indication that at least one of the one or more parameters of the running copy are different from the corresponding parameters of the golden copy.

公开(公告)号：US11755742B2

公开(公告)日：2023-09-12

申请号：US16554352

申请日：2019-08-28

Applicant: Johnson Controls Technology Company

Inventor： Carol Lomonaco ,  John S. Jilek ,  Alan J. Bronikowski ,  Joshua A. Edler ,  Suvidha Raina ,  Dana A. Guthrie ,  Benjamin W. Hapka ,  Steven A. Brukbacher ,  Christopher R. Gozdziewski

IPC: G06F21/57 ,  G05B13/02 ,  G06F21/46 ,  G06F9/451 ,  G06F8/65

CPC classification number: G06F21/577 ,  G05B13/02 ,  G06F8/65 ,  G06F9/451 ,  G06F21/46 ,  G06F2221/033

Abstract: A method for automatically detecting and mitigating risks related to cybersecurity in a Building Management System (BMS) includes evaluating settings of a user account of the BMS; identifying a security risk associated with the settings of the user account; evaluating settings of a network device of the BMS; identifying another security risk associated with the settings of the network device, presenting a user interface, wherein the user interface allows a user to view a policy recommendation associated with either security risk; and implementing the change in the settings of the user account or a change in the settings of the network device based at least in part on an input from the user via the user interface or an automated response to the policy recommendation. The method allows for administrators to easily view and change settings of user accounts and network devices to improve the cybersecurity of the BMS.

公开(公告)号：US11747800B2

公开(公告)日：2023-09-05

申请号：US16418686

申请日：2019-05-21

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ElBsat ,  Michael J. Wenzel ,  Zhigang Wu ,  Yasutaka Yoshida ,  Robert D. Turney ,  Liming Yang

IPC: G05B23/02 ,  G06Q30/0282

CPC classification number: G05B23/0283 ,  G05B23/0294 ,  G06Q30/0282

Abstract: An automatic work order generation system for model predictive maintenance (MPM) of building equipment including an MPM system including an equipment controller to operate the building equipment to affect an environmental condition of a building. The MPM system can perform a predictive optimization to determine a service time at which to service the building equipment. The automatic work order generation system includes an equipment service scheduler that can determine whether any service providers are available to perform equipment service within a predetermined time range of the service time. In response to determining that service providers are available to perform the equipment service, the equipment service scheduler can select a service provider and an appointment time based on one or more service provider attributes. The equipment service scheduler can generate a service work order and transmit the service work order to the service provider to schedule a service appointment.

公开(公告)号：US11747053B2

公开(公告)日：2023-09-05

申请号：US17344675

申请日：2021-06-10

Applicant: Johnson Controls Technology Company

Inventor： Stephen Blake Pickle ,  Kerry Lyman Shumway ,  Thinh Huy Nguyen ,  Bradford Graham Briley

IPC: F25B13/00 ,  F24F3/00 ,  F25B30/02

CPC classification number: F25B13/00 ,  F24F3/001 ,  F25B30/02 ,  F25B2313/027 ,  F25B2313/0292 ,  F25B2313/0316

Abstract: A heat pump system includes a refrigerant circuit that has a compressor, a first heat exchanger, a second heat exchanger, a reheat heat exchanger, a modulating valve, and a reversing valve. The reversing valve is configured to transition between a first configuration to direct refrigerant from the compressor toward the modulating valve and a second configuration to direct the refrigerant from the compressor toward the first heat exchanger. The heat pump system also includes control circuitry configured to concurrently maintain the reversing valve in the first configuration and adjust a position of the modulating valve to direct a first portion of the refrigerant from the modulating valve to the second heat exchanger and a second portion of the refrigerant from the modulating valve to the reheat heat exchanger based on an operating mode of the heat pump system.

公开(公告)号：US11739965B2

公开(公告)日：2023-08-29

申请号：US17108758

申请日：2020-12-01

Applicant: Johnson Controls Technology Company

Inventor： Richard David Friend

IPC: F24F11/52 ,  G09G3/04 ,  F24F11/65 ,  F24F11/54

CPC classification number: F24F11/52 ,  F24F11/54 ,  F24F11/65 ,  G09G3/04

Abstract: A control device for a building includes a segment display. The segment display includes a first character comprising at least seven segments, a second character comprising at least nine segments proximate to the first character, and a connecting character comprising at least two segments located between the first and second character. The control device further includes a processing circuit that, in a first operation, illuminates at least one segment of each of the first character, the second character, and the connecting character to form a first letter and, in a second operation, illuminates at least one segment of each of the first character, the second character, and the connecting character to form a second letter.

公开(公告)号：US11738298B2

公开(公告)日：2023-08-29

申请号：US16650349

申请日：2018-09-26

Applicant: Johnson Controls Technology Company

Inventor： Maccrae William Monteith

IPC: B01D53/04 ,  F25B43/04 ,  B01D53/26 ,  B01D53/14 ,  F25B45/00

CPC classification number: B01D53/04 ,  B01D53/0415 ,  B01D53/0446 ,  B01D53/0454 ,  B01D53/261 ,  F25B43/04 ,  B01D53/0462 ,  B01D53/1425 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2257/102 ,  B01D2257/40 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2257/80 ,  B01D2259/402 ,  F25B45/00

Abstract: The present disclosure relates to a purge system for a vapor compression system, where the purge system includes an emission canister configured to receive a gas flow. The gas flow includes a mixture of non-condensable gases and refrigerant of the vapor compression system. An adsorbent material is disposed within the emission canister and configured to adsorb the refrigerant and enable the non-condensable gases to flow toward an exhaust of the emission canister, where the adsorbent material is a silica gel.

公开(公告)号：US11725838B2

公开(公告)日：2023-08-15

申请号：US16838803

申请日：2020-04-02

Applicant: Johnson Controls Technology Company

Inventor： Robert C. Hall, Jr. ,  Timothy C. Gamroth ,  Nicholas J. Schaf

IPC: F24F11/46 ,  F24F11/54 ,  F24F11/88

CPC classification number: F24F11/46 ,  F24F11/54 ,  F24F11/88

Abstract: A building system for a building includes an environmental controller including a controller radio. The environmental controller is configured to communicate a wake-up message. The building system includes an environmental sensor including a wake-up radio and a main radio. The environmental sensor is configured to operate the main radio in a low power state. The environmental sensor is configured to receive the wake-up message from the controller radio via the wake-up radio. The environmental sensor is configured to operate the main radio in a high power state in response to a reception of the wake-up message via the wake-up radio. The environmental sensor is configured to communicate sensor data of the environmental sensor to the controller radio via the main radio in response to the main radio operating in the high power state.