公开(公告)号：US10295236B2

公开(公告)日：2019-05-21

申请号：US14822541

申请日：2015-08-10

Applicant: Trane International Inc.

Inventor： Chuan Yan ,  Don Schuster ,  Drew Whitehurst

IPC: F25B49/00

Abstract: A compressor heating system includes a compressor drive controller electrically coupled to an outdoor controller configured to selectively implement a pulse width modulation algorithm to deliver a pulsed direct current (DC) from the compressor drive controller to at least one stator winding of a motor of a variable speed compressor to provide heat to the compressor to prevent refrigerant migration to the compressor when the compressor remains idle with respect to operating in a cooling or heating mode.

公开(公告)号：US20150070047A1

公开(公告)日：2015-03-12

申请号：US14479485

申请日：2014-09-08

Applicant: Trane International Inc.

Inventor： Chuan Yan ,  Raymond Walter Rite ,  William David Daugherty, III

IPC: G01R31/34 ,  G01R31/02

CPC classification number: G01R31/024 ,  G01R31/04 ,  G01R31/343 ,  G01R31/42 ,  H02M1/4225 ,  H02M7/53875 ,  H02M2001/007 ,  Y02B70/126

Abstract: One embodiment is a diagnostic method for a system including setting a first diagnostic code based upon a condition of a DC bus of a variable frequency drive during a first drive state, setting at least one additional diagnostic code based upon a condition of at least one motor phase current during a second drive state, outputting first diagnostic information indicating a malfunction of the variable frequency drive if the first diagnostic code indicates a first error, and outputting second diagnostic information indicating a malfunction of a motor or a connector coupling the motor and the drive if the at least one additional diagnostic code indicates a second error.

Abstract translation: 一个实施例是一种用于系统的诊断方法，包括：在第一驱动状态期间基于变频驱动器的DC总线的状况设置第一诊断代码，基于至少一个电动机的状况设置至少一个附加诊断代码 在第二驱动状态下的相电流，如果第一诊断代码指示第一错误，则输出指示变频驱动器的故障的第一诊断信息，以及输出指示电动机或连接电动机和驱动器的连接器的故障的第二诊断信息 如果至少一个附加诊断代码指示第二个错误。

公开(公告)号：US10855211B2

公开(公告)日：2020-12-01

申请号：US15917193

申请日：2018-03-09

Applicant: Trane International Inc.

Inventor： Wayne N. Kraft ,  Chuan Yan

IPC: H02P6/08 ,  H02P6/06 ,  H02P6/04

Abstract: A method for calibrating a motor is provided. The method includes defining a reference speed for operating the motor; operating the motor until a first operating point at which the motor reaches the reference speed; measuring a first current of the motor and an angular acceleration associated with the first current at the first operating point; operating the motor until a second operating point at which the motor reaches the reference speed; measuring a second current of the motor at the second operating point; and estimating a calibration coefficient for calibrating the motor based at least on the first current, the second current, and the angular acceleration associated with the first current.

公开(公告)号：US10330099B2

公开(公告)日：2019-06-25

申请号：US15088334

申请日：2016-04-01

Applicant: Trane International Inc.

Inventor： Don A. Schuster ,  Thomas Reed ,  Chuan Yan

IPC: F04C29/00 ,  F04C18/02 ,  F04C18/344 ,  F04B35/04 ,  F25B49/02

Abstract: Systems and methods for determining the health of a compressor are disclosed. In one embodiment, a prognostic-diagnostic unit (PDU) compares expected compressor power consumption, based on current operating conditions of the HVAC system, to actual compressor power consumption. If the actual power consumption is within a predefined range of the expected power consumption under current operational conditions, the HVAC system is determined to be operating properly. If the actual power consumption deviates from the expected power consumption, a fault is indicated. An appropriate action is taken, such as displaying a fault alert, transmitting a fault message to another device, and storing information relating to the fault for later retrieval to assist troubleshooting.

公开(公告)号：US09448271B2

公开(公告)日：2016-09-20

申请号：US14479485

申请日：2014-09-08

Applicant: Trane International Inc.

Inventor： Chuan Yan ,  Raymond Walter Rite ,  William David Daugherty, III

IPC: G01R31/34 ,  G01R31/02 ,  G01R31/42 ,  G01R31/04 ,  H02M1/42 ,  H02M7/5387 ,  H02M1/00

CPC classification number: G01R31/024 ,  G01R31/04 ,  G01R31/343 ,  G01R31/42 ,  H02M1/4225 ,  H02M7/53875 ,  H02M2001/007 ,  Y02B70/126

Abstract: One embodiment is a diagnostic method for a system including setting a first diagnostic code based upon a condition of a DC bus of a variable frequency drive during a first drive state, setting at least one additional diagnostic code based upon a condition of at least one motor phase current during a second drive state, outputting first diagnostic information indicating a malfunction of the variable frequency drive if the first diagnostic code indicates a first error, and outputting second diagnostic information indicating a malfunction of a motor or a connector coupling the motor and the drive if the at least one additional diagnostic code indicates a second error.

Abstract translation: 一个实施例是一种用于系统的诊断方法，包括：在第一驱动状态期间基于变频驱动器的DC总线的状况设置第一诊断代码，基于至少一个电动机的状况设置至少一个附加诊断代码 在第二驱动状态下的相电流，如果第一诊断代码指示第一错误，则输出指示变频驱动器的故障的第一诊断信息，以及输出指示电动机或连接电动机和驱动器的连接器的故障的第二诊断信息 如果至少一个附加诊断代码指示第二个错误。

公开(公告)号：US09973129B2

公开(公告)日：2018-05-15

申请号：US15180320

申请日：2016-06-13

Applicant: Trane International Inc.

Inventor： Don A. Schuster ,  Chuan Yan

IPC: H02P6/18 ,  H02P23/26

CPC classification number: H02P23/26

Abstract: A power factor optimized variable speed drive unit for an electric motor of an HVAC device is disclosed. In an embodiment, the unit includes a selectively-activatable power factor correction unit operatively associated with a switched mode power supply unit. A power measurement unit measures the input power of the electric motor. A comparator unit compares the motor input power to a predetermined threshold. The comparator unit activates the power factor correction unit when the input power of the electric motor is above the threshold, and deactivates the power factor correction unit when the input power of the electric motor falls below the threshold. In an embodiment, motor input power is determined by the product of motor load current and motor speed.

公开(公告)号：US20160365817A1

公开(公告)日：2016-12-15

申请号：US15180320

申请日：2016-06-13

Applicant: Trane International Inc.

Inventor： Don A. Schuster ,  Chuan Yan

IPC: H02P23/26

CPC classification number: H02P23/26

Abstract: A power factor optimized variable speed drive unit for an electric motor of an HVAC device is disclosed. In an embodiment, the unit includes a selectively-activatable power factor correction unit operatively associated with a switched mode power supply unit. A power measurement unit measures the input power of the electric motor. A comparator unit compares the motor input power to a predetermined threshold. The comparator unit activates the power factor correction unit when the input power of the electric motor is above the threshold, and deactivates the power factor correction unit when the input power of the electric motor falls below the threshold. In an embodiment, motor input power is determined by the product of motor load current and motor speed.

Abstract translation: 公开了一种用于HVAC设备的电动机的功率因数优化变速驱动单元。 在一个实施例中，该单元包括与开关模式电源单元可操作地相关联的可选择性激活的功率因数校正单元。 功率测量单元测量电动机的输入功率。 比较器单元将电动机输入功率与预定阈值进行比较。 当电动机的输入功率高于阈值时，比较器单元激活功率因数校正单元，并且当电动机的输入功率低于阈值时，使功率因数校正单元停止。 在一个实施例中，电动机输入功率由电动机负载电流和电动机速度的乘积确定。

公开(公告)号：US20190280630A1

公开(公告)日：2019-09-12

申请号：US15917193

申请日：2018-03-09

Applicant: Trane International Inc.

Inventor： Wayne N. Kraft ,  Chuan Yan

IPC: H02P6/08 ,  H02P6/06

Abstract: A method for calibrating a motor is provided. The method includes defining a reference speed for operating the motor; operating the motor until a first operating point at which the motor reaches the reference speed; measuring a first current of the motor and an angular acceleration associated with the first current at the first operating point; operating the motor until a second operating point at which the motor reaches the reference speed; measuring a second current of the motor at the second operating point; and estimating a calibration coefficient for calibrating the motor based at least on the first current, the second current, and the angular acceleration associated with the first current.

公开(公告)号：US09816742B2

公开(公告)日：2017-11-14

申请号：US14207884

申请日：2014-03-13

Applicant: TRANE INTERNATIONAL INC.

Inventor： Raymond Walter Rite ,  Chuan Yan ,  Bill Brandt

IPC: F25B49/02 ,  F04C28/06 ,  F04C28/28 ,  F04C18/02

CPC classification number: F25B49/022 ,  F04C18/0215 ,  F04C28/06 ,  F04C28/28 ,  F04C2240/403 ,  F04C2270/14 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/72 ,  F25B2339/047 ,  F25B2500/26

Abstract: Detection of reverse rotation or operation of a refrigerant compressor is provided. In one aspect, a detection technique includes starting the compressor and determining the compressor is rotating in a reverse direction if a dome temperature of the compressor fails to exceed a first predetermined threshold at or before expiration of a first predetermined period of time following starting, the refrigerant pressure at a refrigerant inlet of the compressor remains constant for a second predetermined period of time following starting, and/or the frequency of pressure oscillations of the refrigerant at the refrigerant inlet exceeds a second predetermined threshold. Another technique for determining the compressor is rotating in the reverse direction involves analyzing a waveform associated with motor current, motor torque, or refrigerant pressure. Further embodiments, forms, features, and aspects shall become apparent from the description and drawings.

公开(公告)号：US20160290671A1

公开(公告)日：2016-10-06

申请号：US15088334

申请日：2016-04-01

Applicant: Trane International Inc.

Inventor： Don A. Schuster ,  Thomas Reed ,  Chuan Yan

IPC: F24F11/00 ,  F04C29/00 ,  F04B35/04 ,  F04C18/02 ,  F04C18/344

CPC classification number: F04C29/0085 ,  F04B35/04 ,  F04C18/0215 ,  F04C18/344 ,  F25B49/022 ,  F25B49/025 ,  F25B2700/151 ,  F25B2700/171 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152

Abstract: Systems and methods for determining the health of a compressor are disclosed. In one embodiment, a prognostic-diagnostic unit (PDU) compares expected compressor power consumption, based on current operating conditions of the HVAC system, to actual compressor power consumption. If the actual power consumption is within a predefined range of the expected power consumption under current operational conditions, the HVAC system is determined to be operating properly. If the actual power consumption deviates from the expected power consumption, a fault is indicated. An appropriate action is taken, such as displaying a fault alert, transmitting a fault message to another device, and storing information relating to the fault for later retrieval to assist troubleshooting.

Abstract translation: 公开了用于确定压缩机健康状况的系统和方法。 在一个实施例中，预测诊断单元（PDU）基于HVAC系统的当前操作条件将预期的压缩机功率消耗与实际的压缩机功率消耗进行比较。 如果实际功耗在当前操作条件下的预期功率消耗的预定范围内，则HVAC系统被确定为正常工作。 如果实际功耗偏离预期功耗，则会显示故障。 采取适当的措施，例如显示故障警报，向其他设备发送故障消息，并存储与故障相关的信息以供以后检索以辅助故障排除。