公开(公告)号：US20220357063A1

公开(公告)日：2022-11-10

申请号：US17867611

申请日：2022-07-18

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Kirk H. Drees ,  Homero L. Noboa ,  Brennan H. Fentzlaff

IPC: F24F11/41 ,  F16K37/00 ,  F24F11/76 ,  F24F11/88 ,  F24F11/89 ,  F24F11/64

Abstract: A freeze protection system for a heating, ventilation, or air conditioning (HVAC) system is shown. The freeze protection system includes a temperature sensor positioned at an inlet of a coil within which a liquid is at risk of freezing, and a controller comprising a processor and memory. The memory stores instructions that are executed by the processor. The processor is instructed to obtain a measured temperature of the liquid at the inlet of the coil from the temperature sensor, compare the measured temperature of the liquid at the inlet of the coil with a freeze prevention temperature threshold, engage a freeze prevention action in response to a determination that the measured temperature of the liquid at the inlet of the coil is less than or equal to the freeze prevention temperature threshold.

公开(公告)号：US20220137580A1

公开(公告)日：2022-05-05

申请号：US17576615

申请日：2022-01-14

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： John H. Burroughs ,  Andrew J. Przybylski ,  Michael J. Wenzel ,  MOHAMMAD N. ELBSAT ,  Joseph C. Jones ,  Kirk H. Drees

IPC: G05B19/042 ,  F24F11/70 ,  F24F11/47 ,  F24F11/64 ,  F24F11/52 ,  F24F8/10

Abstract: A controller includes a processing circuit comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations. The operations include determining a gradient of an objective function with respect to a constraint variable used to define a constraint on a control process that uses the objective function and modifying the constraint variable to have a modified value in response to determining that a trigger condition is satisfied. The trigger condition is based on the gradient. The operations include performing the control process subject to the constraint using the modified value of the constraint variable and operating equipment in accordance with a result of the control process.

公开(公告)号：US20210373519A1

公开(公告)日：2021-12-02

申请号：US17403669

申请日：2021-08-16

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Michael J. Risbeck ,  Kirk H. Drees ,  Jonathan D. Douglas

IPC: G05B19/042 ,  F24F11/70 ,  F24F11/47 ,  F24F11/64 ,  F24F11/52 ,  F24F8/10

Abstract: A heating, ventilation, or air conditioning (HVAC) system for one or more building zones includes airside HVAC equipment that provide air to the one or more building zones and a controller. The controller obtains predictive models to predict values of a first control objective and a second control objective for the one or more building zones as a function of control decision variables for the airside HVAC equipment. The controller performs a Pareto optimization for a time period using the one or more predictive models to determine multiple sets of Pareto optimal values of the control decision variables and corresponding sets of Pareto optimal values of the first control objective and the second control objective for the time period. The controller operates the airside HVAC equipment to provide the air to the one or more building zones in accordance with a selected set of the Pareto optimal values.

公开(公告)号：US12174601B2

公开(公告)日：2024-12-24

申请号：US17525227

申请日：2021-11-12

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Jonathan D. Douglas ,  Terrill R. Laughton ,  Rachel D. M. Ellerman ,  Kirk H. Drees

IPC: G05B15/02 ,  A61L2/10 ,  G16H10/60 ,  G16H40/20 ,  G16H50/30 ,  G16H50/70 ,  G16H50/80

Abstract: A building system of a building including one or more memory devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to receive water usage data from one or more network connected water valves, the water usage data indicating water usage by one or more occupants within the building. The instructions cause the one or more processors to derive one or more health metrics indicating physical health of the one or more occupants based on the water usage data and cause one or more pieces of building equipment to perform one or more operations based on values of the one or more health metrics, the one or more operations improving the physical health of the one or more occupants.

公开(公告)号：US12007732B2

公开(公告)日：2024-06-11

申请号：US17403669

申请日：2021-08-16

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Michael J. Risbeck ,  Kirk H. Drees ,  Jonathan D. Douglas

IPC: F24F8/10 ,  F24F11/47 ,  F24F11/52 ,  F24F11/64 ,  F24F11/70 ,  G05B19/042 ,  F24F8/22 ,  F24F110/10 ,  F24F110/20 ,  F24F120/20 ,  F24F140/60 ,  G05B15/02 ,  G05B19/04 ,  G06F30/20

CPC classification number: G05B19/042 ,  F24F8/10 ,  F24F11/47 ,  F24F11/52 ,  F24F11/64 ,  F24F11/70 ,  F24F8/22 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2120/20 ,  F24F2140/60 ,  G05B15/02 ,  G05B19/04 ,  G05B2219/2614 ,  G06F30/20

Abstract: A heating, ventilation, or air conditioning (HVAC) system for one or more building zones includes airside HVAC equipment that provide air to the one or more building zones and a controller. The controller obtains predictive models to predict values of a first control objective and a second control objective for the one or more building zones as a function of control decision variables for the airside HVAC equipment. The controller performs a Pareto optimization for a time period using the one or more predictive models to determine multiple sets of Pareto optimal values of the control decision variables and corresponding sets of Pareto optimal values of the first control objective and the second control objective for the time period. The controller operates the airside HVAC equipment to provide the air to the one or more building zones in accordance with a selected set of the Pareto optimal values.

公开(公告)号：US20240168503A1

公开(公告)日：2024-05-23

申请号：US18426106

申请日：2024-01-29

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Homero L. Noboa ,  Kirk H. Drees ,  Vivek V. Gupta ,  Mark T. Fischbach

IPC: G05D23/19 ,  F24F11/30 ,  F24F11/62 ,  G05B23/02 ,  G06F3/0484

CPC classification number: G05D23/1917 ,  F24F11/30 ,  F24F11/62 ,  G05B23/0267 ,  G05D23/1904 ,  G06F3/0484 ,  F24F11/52

Abstract: A building management system (BMS) operates a plurality of HVAC devices to affect a physical state or condition and detects a fault condition at a second HVAC device affected by the physical state or condition and having causal relationships with the plurality of HVAC devices such that faulty operation of one or more of the plurality of HVAC devices causes a detectable effect at the second HVAC device. The BMS identifies, based on the fault condition, a predetermined set of system parameters corresponding to the fault condition and comprising a plurality of system parameters of the plurality of HVAC devices that are potential causes of the fault condition. The BMS retrieves operating data for the predetermined set of system parameters and transmits a signal to display a user interface comprising the operating data on a display screen.

公开(公告)号：US11960261B2

公开(公告)日：2024-04-16

申请号：US17483078

申请日：2021-09-23

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Michael J. Risbeck ,  Kirk H. Drees ,  Jonathan D. Douglas

IPC: F24F8/10 ,  F24F11/47 ,  F24F11/52 ,  F24F11/64 ,  F24F11/70 ,  G05B19/042 ,  F24F8/22 ,  F24F110/10 ,  F24F110/20 ,  F24F120/20 ,  F24F140/60 ,  G05B15/02 ,  G05B19/04 ,  G06F30/20

CPC classification number: G05B19/042 ,  F24F8/10 ,  F24F11/47 ,  F24F11/52 ,  F24F11/64 ,  F24F11/70 ,  F24F8/22 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2120/20 ,  F24F2140/60 ,  G05B15/02 ,  G05B19/04 ,  G05B2219/2614 ,  G06F30/20

Abstract: A controller for heating, ventilation, or air conditioning (HVAC) equipment that is operable to affect an environmental condition of a building is configured to obtain predictive models that predict values of a carbon emissions control objective and another control objective as a function of control decision variables for the HVAC equipment. The controller executes an optimization process using the predictive models to produce sets of optimization results corresponding to different values of the control decision variables, the carbon emissions control objective, and the other control objective. The controller selects from the sets of optimization results based on the values of the carbon emissions control objective and the other control objective. The controller operates the HVAC equipment to affect the environmental condition of the building in accordance with the values of the control decision variables corresponding to a selected set of the optimization results.

公开(公告)号：US11913655B2

公开(公告)日：2024-02-27

申请号：US17558909

申请日：2021-12-22

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Timothy C. Gamroth ,  Michael J. Wenzel ,  Mohammad N. ElBsat ,  David S. Eidson ,  James Burke ,  Kirk H. Drees ,  Thomas M. Seneczko

IPC: F24F11/39 ,  G05B13/04 ,  G05B19/042 ,  F24F110/64 ,  F24F11/00 ,  G16H40/20 ,  G16H50/30 ,  F24F11/64 ,  F24F11/46 ,  F24F11/72 ,  F24F11/61 ,  F24F8/10 ,  F24F3/14 ,  F24F120/10 ,  F24F140/60 ,  F24F110/70 ,  F24F120/20 ,  F24F110/74 ,  F24F110/65 ,  F24F8/22

CPC classification number: F24F11/0001 ,  F24F3/14 ,  F24F8/10 ,  F24F11/39 ,  F24F11/46 ,  F24F11/61 ,  F24F11/64 ,  F24F11/72 ,  G05B13/041 ,  G05B19/042 ,  G16H40/20 ,  G16H50/30 ,  F24F8/22 ,  F24F2110/64 ,  F24F2110/65 ,  F24F2110/70 ,  F24F2110/74 ,  F24F2120/10 ,  F24F2120/20 ,  F24F2140/60 ,  G05B2219/25011 ,  G05B2219/2614

Abstract: A building management system (BMS) for filtering a fluid within a building is shown. The system includes one or more sensors configured to measure one or more characteristics of a first fluid within an air duct of the BMS and measure one or more characteristics of a second fluid after the second fluid has been filtered. The system further includes a pollutant management system configured to receive data from the one or more sensors and control a filtration process. The filtration process selects a filter of a plurality of filters based on at least one of a level of the one or more characteristics of the first fluid or the one or more characteristics of the second fluid.

公开(公告)号：US11774274B2

公开(公告)日：2023-10-03

申请号：US17736551

申请日：2022-05-04

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Homero L. Noboa ,  Camille M. Aucoin ,  Kirk H. Drees

IPC: G01F1/667 ,  G05D7/06 ,  G05D23/19 ,  G01F15/00

CPC classification number: G01F1/667 ,  G05D7/0623 ,  G05D7/0635 ,  G01F15/005 ,  G05D23/1934

Abstract: A system for controlling a flow rate of a fluid through a valve includes a controller. The controller is configured to receive a raw flow rate measurement from a flow rate sensor assembly configured to measure the flow rate. The controller is further configured to apply a flow rate measurement filter to the raw flow rate measurement to generate a filtered flow rate measurement. The controller is further configured to control actuation of an actuator configured to change the flow rate using the filtered flow rate measurement. The controller is configured to automatically adjust the flow rate measurement filter in response to detecting an event that causes stoppage of the actuation of the actuator.

公开(公告)号：US11714393B2

公开(公告)日：2023-08-01

申请号：US17576615

申请日：2022-01-14

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： John H. Burroughs ,  Andrew J. Przybylski ,  Michael J. Wenzel ,  Mohammad N. Elbsat ,  Joseph C. Jones ,  Kirk H. Drees

IPC: G05B19/042 ,  G05B15/02 ,  G05B19/04 ,  F24F11/70 ,  F24F11/47 ,  F24F11/64 ,  F24F11/52 ,  F24F8/10 ,  F24F110/20 ,  F24F140/60 ,  F24F120/20 ,  F24F110/10 ,  G06F30/20 ,  F24F8/22

CPC classification number: G05B19/042 ,  F24F8/10 ,  F24F11/47 ,  F24F11/52 ,  F24F11/64 ,  F24F11/70 ,  F24F8/22 ,  F24F2110/10 ,  F24F2110/20 ,  F24F2120/20 ,  F24F2140/60 ,  G05B15/02 ,  G05B19/04 ,  G05B2219/2614 ,  G06F30/20

Abstract: A controller includes a processing circuit comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the one or more processors to perform operations. The operations include determining a gradient of an objective function with respect to a constraint variable used to define a constraint on a control process that uses the objective function and modifying the constraint variable to have a modified value in response to determining that a trigger condition is satisfied. The trigger condition is based on the gradient. The operations include performing the control process subject to the constraint using the modified value of the constraint variable and operating equipment in accordance with a result of the control process.