公开(公告)号：US11099526B2

公开(公告)日：2021-08-24

申请号：US16284895

申请日：2019-02-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G05B13/02 ,  G06Q30/02 ,  G06F1/3203 ,  H04L12/14 ,  H04L12/28 ,  G05D23/19 ,  F24F11/30 ,  F24F11/62 ,  G05F1/66 ,  F24F11/46

Abstract: A cascaded control system is configured to control power consumption of a building during a demand limiting period. The cascaded control system includes an energy use setpoint generator and a feedback controller. The energy use setpoint generator is configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period. The feedback controller is configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period.

公开(公告)号：US20210199330A1

公开(公告)日：2021-07-01

申请号：US16730798

申请日：2019-12-30

Applicant: Johnson Controls Technology Company

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

IPC: F24F11/49 ,  F24F11/65 ,  F24F11/64 ,  F24F11/74

Abstract: A method for calibrating a flow sensor in a heating, ventilation, or air conditioning (HVAC) system. The method includes receiving, at a controller, a request to enter a calibration mode and, in response to receiving the request, automatically commanding a flow control device to achieve a target flow rate. The method further includes generating, by the controller, calibration data for the flow sensor using a reference flow value of the flow rate when the flow control device has achieved the target flow rate and a corresponding flow measurement from the flow sensor.

公开(公告)号：US20200162354A1

公开(公告)日：2020-05-21

申请号：US16685814

申请日：2019-11-15

Applicant: Johnson Controls Technology Company

Inventor： Kirk H. Drees ,  Donald R. Albinger ,  Shawn D. Schubert ,  Karl F. Reichenberger ,  Daniel M. Curtis ,  Andrew J. Boettcher ,  Jason T. Sawyer ,  Miguel Galvez ,  Walter Martin ,  Ryan A. Piaskowski ,  Vaidhyanathan Venkiteswaran ,  Clay G. Nesler ,  Siddharth Goyal ,  Tom M. Seneczko ,  Young M. Lee ,  Sudhi R. Sinha

IPC: H04L12/26 ,  G06N5/04 ,  H04L29/08

Abstract: A building system including one or more memory devices configured to store instructions that, when executed on one or more processors, cause the one or more processors to collect building device data of a building device, the building device data comprising a plurality of data samples of a data point and generate a time correlated data stream for the data point, the time correlated data stream comprising values of the plurality of data samples of the data point. The instructions cause the one or more processors to generate a time correlated reliability data stream for the data point, the time correlated reliability data stream comprising a plurality of reliability values indicating reliability of the values of the plurality of data samples of the data point.

公开(公告)号：US20200162280A1

公开(公告)日：2020-05-21

申请号：US16685834

申请日：2019-11-15

Applicant: Johnson Controls Technology Company

Inventor： Kirk H. Drees ,  Donald R. Albinger ,  Shawn D. Schubert ,  Karl F. Reichenberger ,  Daniel M. Curtis ,  Andrew J. Boettcher ,  Jason T. Sawyer ,  Miguel Galvez ,  Walter Martin ,  Ryan A. Piaskowski ,  Vaidhyanathan Venkiteswaran ,  Clay G. Nesler ,  Siddharth Goyal ,  Tom M. Seneczko ,  Young M. Lee ,  Sudhi R Sinha

IPC: H04L12/28 ,  H04L12/24

Abstract: A building system of a building including one or more memory devices configured to store one or more instructions that, when executed on one or more processors, cause the one or more processors to exercise a building entity causing building entity data to be generated associated with the building entity, the building entity data indicating a result of exercising the building entity and collect the building entity data. The instructions cause the one or more processors to identify, based on a relational model, one or more relationships between one or more building entities and the building entity, wherein the one or more relationships indicate that exercising the building entity affects operation of the one or more building entities and identify that the building is experiencing a performance issue by analyzing the building entity data and the one or more relationships.

公开(公告)号：US10558227B2

公开(公告)日：2020-02-11

申请号：US15908041

申请日：2018-02-28

Applicant: Johnson Controls Technology Company

Inventor： Carlos Felipe Alcala Perez ,  Kirk H. Drees ,  Timothy I. Salsbury

IPC: F16K31/02 ,  G05D7/06 ,  F24F11/74 ,  F24F140/40

Abstract: A system for monitoring and controlling flow rate of a fluid through a valve is disclosed. The system includes a flow rate sensor to measure the flow rate of the fluid through the valve, and a controller. The controller is configured to receive the measured flow rate from the flow rate sensor, and determine if the measured flow rate is equal to a predetermined flow rate value. The controller is further configured to, in response to a determination that the measured flow rate is equal to the predetermined flow rate value, determine a minimum valve position threshold (xmin). Additionally, the controller is configured to determine a minimum flow rate threshold (ymin) corresponding to xmin, and configured to generate a PWM signal and calculate a corrected flow rate (ŷf) using the PWM signal. The controller controls a valve operation using ŷf. The PWM signal switches between zero and ymin.

公开(公告)号：US20190353385A1

公开(公告)日：2019-11-21

申请号：US16418887

申请日：2019-05-21

Applicant: Johnson Controls Technology Company

Inventor： Camille M. Aucoin ,  Brennan H. Fentzlaff ,  Homero L. Noboa ,  Duane S. Freimuth ,  Kirk H. Drees ,  Kenneth J. Sieth ,  Justin M. Salerno

IPC: F24F11/74 ,  F24F11/63 ,  F16K37/00 ,  F24F11/30 ,  G01F1/34 ,  G05D23/19

Abstract: A system for controlling a flow rate of a fluid through a valve is provided. The system includes a valve and an actuator. An actuator drive device is driven by an actuator motor and is coupled to the valve for driving the valve between multiple positions. The system further includes a differential pressure sensor configured to measure a differential pressure across the valve and a controller that is communicably coupled with the differential pressure sensor and the motor. The controller is configured to receive a flow rate setpoint and the differential pressure measurement, determine an estimated flow rate based on the differential pressure measurement, determine an actuator position setpoint using the flow rate setpoint and the estimated flow rate, and operate the motor to drive the drive device to the actuator position setpoint.

公开(公告)号：US20190249897A1

公开(公告)日：2019-08-15

申请号：US15897987

申请日：2018-02-15

Applicant: Johnson Controls Technology Company

Inventor： Carlos Felipe Alcala Perez ,  Kirk H. Drees

IPC: F24F11/76 ,  F24F11/30 ,  F24F11/62 ,  F24F11/88 ,  G01F1/34 ,  G05D7/06

CPC classification number: F24F11/76 ,  F24F11/0001 ,  F24F11/30 ,  F24F11/62 ,  F24F11/74 ,  F24F11/88 ,  F24F13/10 ,  F24F2110/10 ,  F24F2110/40 ,  G01F1/34 ,  G01F25/00 ,  G05D7/0629 ,  G05D7/0635

Abstract: A system for monitoring and controlling flow rate of a fluid through a valve, the system including a flow rate sensor configured to measure the flow rate of the fluid through the valve, and a controller in communication with the flow rate sensor. The controller is configured to receive the measured flow rate from the flow rate sensor and determine if the measured flow rate is equal to a predetermined flow rate value. In response to determining equality, the controller is configured to determine a minimum valve position threshold (xmin), and determine a minimum flow rate threshold (ymin) corresponding to xmin. The controller is further configured to calculate a corrected flow rate (ŷf) using xmin, ymin, and an indication of valve position (v). Additionally, the controller is configured to control a valve operation using the corrected flow rate (ŷf).

公开(公告)号：US20190212712A1

公开(公告)日：2019-07-11

申请号：US16352536

申请日：2019-03-13

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Mohammad N. ElBsat ,  Kirk H. Drees

IPC: G05B17/02 ,  G06Q50/16 ,  G01R21/133 ,  G05B15/02 ,  H02J13/00 ,  G06Q10/06 ,  G06Q50/06

Abstract: A method for operating HVAC equipment includes obtaining building data for each of a plurality of time steps. The building data relates to resource usage of HVAC equipment. The method also includes calculating a recursive residual for each of a plurality of overlapping time periods using the building data. Each overlapping time period includes a subset of the plurality of time steps. The method also includes, for each of the plurality of time steps, calculating a metric based on the recursive residuals for overlapping time periods that end on or before the time step and automatically detecting a change in static factors for one or more buildings served by the HVAC equipment by comparing the metrics for the plurality of time steps based on a statistical property of the metrics.

公开(公告)号：US10325331B2

公开(公告)日：2019-06-18

申请号：US15199622

申请日：2016-06-30

Applicant: Johnson Controls Technology Company

Inventor： Kirk H. Drees ,  James P. Kummer ,  Michael J. Wenzel

IPC: G06Q50/06 ,  G01R21/00 ,  G06Q10/06 ,  G01R21/133

Abstract: A system for measuring and verifying energy savings resulting from energy conservation measures in a building includes one or more energy meters and a controller. The energy meters are configured to measure an actual amount of building energy usage The controller is configured to determine an actual amount of energy savings resulting from the energy conservation measures during the measurement and verification period and to calculate a least amount of energy savings resulting from the energy conservation measures. The least amount of energy savings is a lower confidence bound on the actual amount of energy savings. The controller is configured to cause a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the least amount being greater than a target amount of energy savings to be achieved by the energy conservation measures.

公开(公告)号：US10254721B2

公开(公告)日：2019-04-09

申请号：US15068475

申请日：2016-03-11

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Kirk H. Drees

IPC: G05B13/02 ,  G06Q30/02 ,  G06F1/3203 ,  H04L12/14 ,  H04L12/28 ,  G05D23/19 ,  G05F1/66 ,  F24F11/30 ,  F24F11/62 ,  F24F11/46

Abstract: A cascaded control system is configured to control power consumption of a building during a demand limiting period. The cascaded control system includes an energy use setpoint generator and a feedback controller. The energy use setpoint generator is configured to use energy pricing data and measurements of a variable condition within the building to generate an energy use setpoint during the demand limiting period. The feedback controller is configured to use a difference between the energy use setpoint and a measured energy use to generate a control signal for building equipment that operate to affect the variable condition within the building during the demand limiting period.