公开(公告)号：US09612601B2

公开(公告)日：2017-04-04

申请号：US14599306

申请日：2015-01-16

Applicant: Johnson Controls Technology Company

Inventor： Saman Beyhaghi ,  Matthew J. Asmus ,  Justin P. Kauffman

IPC: G05D23/19 ,  G05B15/02

CPC classification number: G05D23/1917 ,  G05B15/02 ,  G05B2219/2614 ,  G05D23/1934

Abstract: An adaptive capacity constraint management system receives a measured value affected by HVAC equipment at actual operating conditions and uses the measured value to determine an operating value for a variable that affects a capacity of the HVAC equipment at the actual operating condition. The system uses the operating value to calculate a gain factor for the variable relative to design conditions and uses the calculated gain factor to determine a capacity gain for the HVAC equipment relative to the design conditions. The system applies the capacity gain to a design capacity limit for the HVAC equipment to determine a new capacity limit for the HVAC equipment at the actual operating conditions. The system may use the new capacity limit as a constraint in an optimization routine that that selects one or more devices of the HVAC equipment to satisfy a load setpoint.

公开(公告)号：US20160169572A1

公开(公告)日：2016-06-16

申请号：US14572375

申请日：2014-12-16

Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY

Inventor： Homero L. Noboa ,  Andrew J. Boettcher ,  Saman Beyhaghi

IPC: F25B49/00 ,  F25B13/00

CPC classification number: F25B49/005 ,  F25B13/00 ,  F25B25/005 ,  F25B2339/047 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152

Abstract: A fault detection and diagnostics (FDD) system is provided for a refrigeration circuit having an evaporator and a compressor configured to circulate a refrigerant through the evaporator. The FDD system includes a communications interface configured to receive a measurement of a thermodynamic property affected by the refrigeration circuit and a processing circuit having a processor and memory. The processing circuit is configured to use the measured thermodynamic property to determine an expected suction entropy of the refrigerant at a suction of the compressor, use the expected suction entropy to determine an expected thermodynamic discharge property of the refrigerant at a discharge of the compressor, determine an actual thermodynamic discharge property of the refrigerant at the discharge of the compressor, and detect a fault in the refrigeration circuit by comparing the expected thermodynamic discharge property with the actual thermodynamic discharge property.

Abstract translation: 提供了一种具有蒸发器和压缩机的制冷回路的故障检测和诊断（FDD）系统，该压缩机构造成使制冷剂循环通过蒸发器。 FDD系统包括被配置为接收受制冷回路影响的热力学特性的测量的通信接口以及具有处理器和存储器的处理电路。 处理电路被配置为使用测量的热力学性质来确定在压缩机的吸力下的制冷剂的预期吸入熵，使用预期的吸入熵来确定在压缩机的排出处的制冷剂的期望的热力学排放特性，确定 在压缩机排出时的制冷剂的实际热力学排出特性，并且通过将预期的热力学放电特性与实际热力学放电特性进行比较来检测制冷回路中的故障。

公开(公告)号：US20150241856A1

公开(公告)日：2015-08-27

申请号：US14186999

申请日：2014-02-21

Applicant: Johnson Controls Technology Company

Inventor： J. Carlin Walser ,  Saman Beyhaghi ,  Matthew J. Asmus

IPC: G05B15/02 ,  F24F11/00

CPC classification number: F24F11/30 ,  G05B15/02 ,  G05B19/048 ,  G05B2219/24053 ,  G05B2219/2614 ,  G05B2219/2642

Abstract: Systems and methods for auto-commissioning and self-diagnostics of equipment in a building management system are provided. A self-testing module is implemented in a control unit of the building management system. The self-testing module exercises equipment of the building management system using a state-based testing procedure that differs from normal operation of the equipment and monitors feedback received from a sensor of the building management system in response to exercising the equipment. The self-testing module uses the feedback from the sensor to evaluate a state transition condition of the state-based testing procedure and to transition between states of the state-based testing procedure using a result of the evaluation.

Abstract translation: 提供了建筑物管理系统中设备自动调试和自诊断的系统和方法。 在大楼管理系统的控制单元中实施自检模块。 自检模块使用与设备的正常操作不同的基于状态的测试程序来锻炼楼宇管理系统的设备，并且响应于运行设备来监视从建筑物管理系统的传感器接收的反馈。 自检模块使用传感器的反馈来评估基于状态的测试过程的状态转换条件以及使用评估结果在基于状态的测试过程的状态之间转换。

公开(公告)号：US09696073B2

公开(公告)日：2017-07-04

申请号：US14572375

申请日：2014-12-16

Applicant: Johnson Controls Technology Company

Inventor： Homero L. Noboa ,  Andrew J. Boettcher ,  Saman Beyhaghi

IPC: F25B49/02 ,  F25B49/00 ,  F25B13/00 ,  F25B25/00

CPC classification number: F25B49/005 ,  F25B13/00 ,  F25B25/005 ,  F25B2339/047 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21151 ,  F25B2700/21152

Abstract: A fault detection and diagnostics (FDD) system is provided for a refrigeration circuit having an evaporator and a compressor configured to circulate a refrigerant through the evaporator. The FDD system includes a communications interface configured to receive a measurement of a thermodynamic property affected by the refrigeration circuit and a processing circuit having a processor and memory. The processing circuit is configured to use the measured thermodynamic property to determine an expected suction entropy of the refrigerant at a suction of the compressor, use the expected suction entropy to determine an expected thermodynamic discharge property of the refrigerant at a discharge of the compressor, determine an actual thermodynamic discharge property of the refrigerant at the discharge of the compressor, and detect a fault in the refrigeration circuit by comparing the expected thermodynamic discharge property with the actual thermodynamic discharge property.

公开(公告)号：US20170159962A1

公开(公告)日：2017-06-08

申请号：US15437318

申请日：2017-02-20

Applicant: Johnson Controls Technology Company

Inventor： J. Carlin Walser ,  Saman Beyhaghi ,  Matthew J. Asmus

IPC: F24F11/00 ,  G05B19/048

CPC classification number: F24F11/30 ,  G05B15/02 ,  G05B19/048 ,  G05B2219/24053 ,  G05B2219/2614 ,  G05B2219/2642

Abstract: A method for testing a cooling component in a building HVAC system uses a state-based testing procedure. The method includes providing a control signal to the cooling component. The control signal instructs the cooling component to activate. The method includes monitoring feedback from a temperature sensor configured to measure temperature affected by the cooling component and evaluating a state transition condition by comparing the feedback from the temperature sensor to a threshold value. The state transition condition is satisfied if the feedback is less than the threshold value and not satisfied if the feedback is not less than the threshold value. The method includes transitioning into a pass state in response to the feedback from the temperature sensor satisfying the state transition condition and transitioning into a fail state in response to the feedback from the temperature sensor not satisfying the state transition condition.

公开(公告)号：US09581985B2

公开(公告)日：2017-02-28

申请号：US14186999

申请日：2014-02-21

Applicant: Johnson Controls Technology Company

Inventor： J. Carlin Walser ,  Saman Beyhaghi ,  Matthew J. Asmus

IPC: G01M1/38 ,  G05B15/02 ,  F24F11/00

CPC classification number: F24F11/30 ,  G05B15/02 ,  G05B19/048 ,  G05B2219/24053 ,  G05B2219/2614 ,  G05B2219/2642

Abstract: Systems and methods for auto-commissioning and self-diagnostics of equipment in a building management system are provided. A self-testing module is implemented in a control unit of the building management system. The self-testing module exercises equipment of the building management system using a state-based testing procedure that differs from normal operation of the equipment and monitors feedback received from a sensor of the building management system in response to exercising the equipment. The self-testing module uses the feedback from the sensor to evaluate a state transition condition of the state-based testing procedure and to transition between states of the state-based testing procedure using a result of the evaluation.

Abstract translation: 提供了建筑物管理系统中设备自动调试和自诊断的系统和方法。 在大楼管理系统的控制单元中实施自检模块。 自检模块使用与设备的正常操作不同的基于状态的测试程序来锻炼楼宇管理系统的设备，并且响应于运行设备来监视从建筑物管理系统的传感器接收的反馈。 自检模块使用传感器的反馈来评估基于状态的测试过程的状态转换条件以及使用评估结果在基于状态的测试过程的状态之间转换。

公开(公告)号：US20160209852A1

公开(公告)日：2016-07-21

申请号：US14599306

申请日：2015-01-16

Applicant: Johnson Controls Technology Company

Inventor： Saman Beyhaghi ,  Matthew J. Asmus ,  Justin P. Kauffman

IPC: G05D23/19 ,  G05B15/02

CPC classification number: G05D23/1917 ,  G05B15/02 ,  G05B2219/2614 ,  G05D23/1934

Abstract: An adaptive capacity constraint management system receives a measured value affected by HVAC equipment at actual operating conditions and uses the measured value to determine an operating value for a variable that affects a capacity of the HVAC equipment at the actual operating condition. The system uses the operating value to calculate a gain factor for the variable relative to design conditions and uses the calculated gain factor to determine a capacity gain for the HVAC equipment relative to the design conditions. The system applies the capacity gain to a design capacity limit for the HVAC equipment to determine a new capacity limit for the HVAC equipment at the actual operating conditions. The system may use the new capacity limit as a constraint in an optimization routine that that selects one or more devices of the HVAC equipment to satisfy a load setpoint.

Abstract translation: 自适应能力约束管理系统在实际操作条件下接收受HVAC设备影响的测量值，并使用测量值确定影响HVAC设备在实际运行状态下容量的变量的运行值。 系统使用运行值来计算变量相对于设计条件的增益因子，并使用计算的增益因子来确定HVAC设备相对于设计条件的容量增益。 该系统将容量增益应用于HVAC设备的设计容量限制，以在实际运行条件下确定HVAC设备的新容量限制。 该系统可以使用新的容量限制作为选择HVAC设备的一个或多个设备以满足负载设定点的优化例程中的约束。