公开(公告)号：US11036249B2

公开(公告)日：2021-06-15

申请号：US16383228

申请日：2019-04-12

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ElBsat

IPC: G05F1/66 ,  G05B13/02 ,  H02J13/00 ,  G06Q10/04 ,  G06Q50/06 ,  H02J3/32 ,  G05B15/02 ,  H02J7/00 ,  H02J3/00

Abstract: An energy storage system for a building includes a battery and an energy storage controller. The battery is configured to store electrical energy purchased from a utility and to discharge stored electrical energy for use in satisfying a building energy load. The energy storage controller is configured to generate a cost function including a peak load contribution (PLC) term. The PLC term represents a cost based on electrical energy purchased from the utility during coincidental peak hours in an optimization period. The controller is configured to modify the cost function by applying a peak hours mask to the PLC term. The peak hours mask identifies one or more hours in the optimization period as projected peak hours and causes the energy storage controller to disregard the electrical energy purchased from the utility during any hours not identified as projected peak hours when calculating a value for the PLC term.

公开(公告)号：US11036195B2

公开(公告)日：2021-06-15

申请号：US15199909

申请日：2016-06-30

Applicant: Johnson Controls Technology Company

Inventor： Nishith R. Patel ,  Robert D. Turney ,  Matthew J. Ellis

IPC: G05B13/04 ,  F24F5/00 ,  F28D20/00 ,  F24F3/044 ,  G05B19/042 ,  G05B15/02 ,  F24F11/54 ,  F24F11/30 ,  F24F11/62 ,  F24F11/47 ,  G05D23/19 ,  F24F11/56 ,  F24F110/20 ,  F24F120/10 ,  F24F110/10 ,  F24F11/46 ,  F24F110/40 ,  F24F11/58

Abstract: A building HVAC system includes an airside system having a plurality of airside subsystems, a high-level model predictive controller (MPC), and a plurality of low-level airside MPCs. Each airside subsystem includes airside HVAC equipment configured to provide heating or cooling to the airside subsystem. The high-level MPC is configured to perform a high-level optimization to generate an optimal airside subsystem load profile for each airside subsystem. The optimal airside subsystem load profiles optimize energy cost. Each of the low-level airside MPCs corresponds to one of the airside subsystems and is configured to perform a low-level optimization to generate optimal airside temperature setpoints for the corresponding airside subsystem using the optimal airside subsystem load profile for the corresponding airside subsystem. Each of the low-level airside MPCs is configured to use the optimal airside temperature setpoints for the corresponding airside subsystem to operate the airside HVAC equipment of the corresponding airside subsystem.

公开(公告)号：US20210172634A1

公开(公告)日：2021-06-10

申请号：US16702818

申请日：2019-12-04

Applicant: Johnson Controls Technology Company

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

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

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：US11024292B2

公开(公告)日：2021-06-01

申请号：US17105243

申请日：2020-11-25

Applicant: Johnson Controls Technology Company

Inventor： Youngchoon Park ,  Sudhi R. Sinha ,  Vaidhyanathan Venkiteswaran ,  Vijaya S. Chennupati ,  Erik S. Paulson

IPC: G06Q10/04 ,  G10L15/14 ,  G10L25/63 ,  G10L15/30 ,  G06F16/00 ,  G10L15/22 ,  G06F3/01

Abstract: One or more non-transitory computer readable media contain program instructions that, when executed, cause one or more processors to: receive first raw data including one or more first data points generated by a first object of a plurality of objects associated with one or more buildings; generate first input timeseries according to the one or more data points; access a database of interconnected smart entities, the smart entities including object entities representing each of the plurality of objects and data entities representing stored data, the smart entities being interconnected by relational objects indicating relationships between the smart entities; identify a first object entity representing the first object from a first identifier in the first input timeseries; identify a first data entity from a first relational object indicating a relationship between the first object entity and the first data entity; and store the first input timeseries in the first data entity.

公开(公告)号：US11022947B2

公开(公告)日：2021-06-01

申请号：US15974443

申请日：2018-05-08

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ElBsat ,  Michael J. Wenzel ,  Nicole A. Madison ,  Tricia J. Valentine ,  Collin W. Eggert ,  Matthew J. Asmus ,  James P. Kummer ,  Carol T. Tumey ,  Peter A. Craig

IPC: G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  G05B19/042 ,  G06Q30/02 ,  G06Q50/06 ,  G05B15/02 ,  H02J3/38 ,  H02J3/32 ,  H02J3/00

Abstract: An energy optimization system for a building includes a processing circuit configured to generate a user interface including an indication of one or more economic load demand response (ELDR) operation parameters, one or more first participation hours, and a first load reduction amount for each of the one or more first participation hours. The processing circuit is configured to receive one or more overrides of the one or more first participation hours from the user interface, generate one or more second participation hours, a second load reduction amount for each of the one or more second participation hours, and one or more second equipment loads for the one or more pieces of building equipment based on the received one or more overrides, and operate the one or more pieces of building equipment to affect an environmental condition of the building based on the one or more second equipment loads.

公开(公告)号：US11022355B2

公开(公告)日：2021-06-01

申请号：US15934687

申请日：2018-03-23

Applicant: Johnson Controls Technology Company

Inventor： Florin V. Iancu ,  Justin P. Kauffman ,  Jeb W. Schreiber ,  Chenggang Wu ,  Steven Wang ,  John Trevino, Jr.

IPC: F25B41/00 ,  F15D1/04 ,  F25B41/06 ,  F25B41/40 ,  F04D17/10 ,  F04D29/42 ,  F25B1/053 ,  F25B41/30

Abstract: A compressor includes an inlet and the inlet includes a flange and an impeller eye. The flange is connected to a suction line that transfers a refrigerant into the compressor via the impeller eye. The refrigerant flows into the compressor with an amount of swirl and a pressure loss. The suction line includes a geometry that includes a constantly decreasing cross-sectional area in a direction towards the compressor. The geometry of the suction line is configured to reduce the amount of swirl and the pressure loss.

公开(公告)号：US11018890B2

公开(公告)日：2021-05-25

申请号：US16895908

申请日：2020-06-08

Applicant: Johnson Controls Technology Company

Inventor： Youngchoon Park ,  Sudhi Sinha

IPC: H04L29/08 ,  H04L12/28 ,  G06F16/901

Abstract: A building system including one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to generate a temporary relationship between a first entity and a second entity of a space graph, cause the space graph to include the temporary relationship, perform one or more control operations based on the space graph including the temporary edge, receive new building data from the one or more building data sources, determine whether to generate a permanent relationship to replace the temporary relationship based on the new building data, and update the space graph by causing the permanent relationship to replace the temporary relationship of the space graph in response to a determination to generate the permanent relationship to replace the temporary relationship by causing a permanent edge to replace the temporary edge.

公开(公告)号：US20210152388A1

公开(公告)日：2021-05-20

申请号：US16684371

申请日：2019-11-14

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ELBSAT

IPC: H04L12/28 ,  G05B13/02

Abstract: A controller for building equipment that operate to provide heating or cooling for a building or campus. The controller includes a processing circuit configured to perform an optimization of an objective function subject to an override constraint to determine amounts of one or more resources to be produced by the building equipment and control the building equipment to produce the amounts of the one or more resources determined by performing the optimization subject to the override constraint. The override constraint overrides an output of the optimization by specifying an override amount of a first resource of the one or more resources to be produced by a first subset of the building equipment.

公开(公告)号：US20210149352A1

公开(公告)日：2021-05-20

申请号：US16688440

申请日：2019-11-19

Applicant: Johnson Controls Technology Company

Inventor： Ann M. Cook ,  Dana A. Guthrie ,  Suvidha Raina ,  Philip G. Johnson ,  Ryan A. Piaskowski ,  Prashant Taralkar

IPC: G05B15/02 ,  G06F3/0482

Abstract: A method in a Building Management System (BMS) includes presenting a user interface to a user on a user device that allows the user to efficiently view logical relationships between objects in the BMS. The method includes presenting, on the user interface, a first object and a second object. The second object is affected by the first object. The first object is presented on a first side of the second object on the user interface. The method also includes receiving, via the user interface, an input from the user including a selection of the second object, and presenting, on the user interface, a third object used to control equipment of the BMS in response to the input from the user. The third object is affected by the second object and presented on a second side of the second object opposite the first side.

公开(公告)号：US20210148605A1

公开(公告)日：2021-05-20

申请号：US16689843

申请日：2019-11-20

Applicant: Johnson Controls Technology Company

Inventor： Stephen C. Wilson ,  Sumedh J. Suryawanshi ,  Amit R. Chothave ,  Karan Garg

IPC: F24H3/08 ,  F24H9/00 ,  F24H9/18

Abstract: A furnace for a heating, ventilation, and/or air conditioning (HVAC) system includes a first set of heat exchanger tubes positioned within an air flow path of the furnace through which an air flow may be directed, a second set of heat exchanger tubes positioned within the air flow path of the furnace, and a deflector baffle positioned within the air flow path and configured to direct a portion of the air flow toward the second set of heat exchanger tubes. The first set of heat exchanger tubes, the deflector baffle, and the second set of heat exchanger tubes are each respectively offset from one another in a direction of the air flow along the air flow path.