CLIMATE-CONTROL SYSTEM HAVING OIL COOLING CONTROL SYSTEM

    公开(公告)号:EP3657099A1

    公开(公告)日:2020-05-27

    申请号:EP19210166.5

    申请日:2019-11-19

    Abstract: A system may include a compressor, a first passageway, a valve and a control module. The compressor includes a compression mechanism operable to compress a working fluid. The first passageway is in fluid communication with an oil sump of the compressor and the compression mechanism. The valve is disposed along the first passageway and movable between an open position allowing lubricant from the oil sump to flow to the compression mechanism and a closed position restricting lubricant from the oil sump from flowing to the compression mechanism. The control module is in communication with the valve and configured to move the valve between the closed position and the open position based on an operating parameter indicative of a temperature of the compression mechanism.

    MULTIPLE COMPRESSOR CONFIGURATION WITH OIL-BALANCING SYSTEM

    公开(公告)号:EP3334940A1

    公开(公告)日:2018-06-20

    申请号:EP16835854.7

    申请日:2016-08-10

    Abstract: An oil balancing system for a multiple compressor system is provided. The oil balancing system includes an oil equalization line disposed between a first compressor and a second compressor. A first solenoid valve is provided in the oil equalization line. A first signal corresponds to a first oil level in the first compressor. A second signal corresponds to a second oil level in the second compressor. An oil balancing module uses the first signal and the second signal to diagnose an oil imbalance between the first compressor and the second compressor, and applies corrective action, whereby the corrective action includes sending control signals to operate at least one of the first compressor, the second compressor, or the first solenoid valve in a way that eliminates the oil imbalance.

    COMPRESSOR HAVING SOUND CONTROL SYSTEM
    15.
    发明公开
    COMPRESSOR HAVING SOUND CONTROL SYSTEM 审中-公开
    具有声音控制系统的压缩机

    公开(公告)号:EP3211353A1

    公开(公告)日:2017-08-30

    申请号:EP17157966.7

    申请日:2017-02-24

    Abstract: A climate-control system may include a compressor and a control module. The compressor includes a motor driving a compression mechanism to compress a working fluid. The control module is in communication with the motor and may be configured to determine a balance speed of the motor at which a forward-rotational inertial force of the compression mechanism is equal to a backward-rotational gas force on the compression mechanism. The control module may be configured to adjust a running speed of the motor to the balance speed after receipt of a compressor-shutdown-command and before shutting down the compressor.

    Abstract translation: 气候控制系统可以包括压缩机和控制模块。 压缩机包括驱动压缩机构以压缩工作流体的马达。 控制模块与马达连通,并且可以被配置为确定马达的平衡速度,在该平衡速度下,压缩机构的正向旋转惯性力等于压缩机构上的反向旋转气体力。 控制模块可以被配置为在接收到压缩机关闭命令之后并且在关闭压缩机之前将电动机的运行速度调整为平衡速度。

    VARIABLE SPEED COMPRESSOR CONTROL WITH LOST ROTOR MITIGATION
    18.
    发明公开
    VARIABLE SPEED COMPRESSOR CONTROL WITH LOST ROTOR MITIGATION 审中-公开
    变速压缩机控制与转子减速减速

    公开(公告)号:EP3186513A1

    公开(公告)日:2017-07-05

    申请号:EP15837067.6

    申请日:2015-08-28

    Abstract: A drive controller for a motor of a compressor includes a drive circuit that applies voltages to windings of the motor. A speed control module controls the drive circuit to rotate the motor at a requested speed. A speed determination module generates the requested speed based on a speed demand from a system controller. A lost rotor control module identifies a lost rotor condition and, in response to identifying the lost rotor condition, instructs the speed determination module to set the requested speed to an override speed that is lower than the speed demand. The lost rotor control module identifies the lost rotor condition in response to a comparison of a speed error with an adaptive threshold. The speed error is based on a difference between requested and estimated speeds of the motor. During first and second system states, the adaptive threshold is set to first and second thresholds, respectively.

    Abstract translation: 用于压缩机的电动机的驱动控制器包括向电动机的绕组施加电压的驱动电路。 速度控制模块控制驱动电路以所需速度旋转电机。 速度确定模块基于来自系统控制器的速度需求来生成所请求的速度。 失速转子控制模块识别失速的转子状态,并且响应于识别出失去的转子状态,指示速度确定模块将所请求的速度设置为低于速度要求的超驰速度。 响应于速度误差与自适应阈值的比较,丢失的转子控制模块识别失去的转子状态。 速度误差基于电机的请求速度和估计速度之间的差异。 在第一和第二系统状态期间,自适应阈值分别被设置为第一和第二阈值。

    VARIABLE SPEED COMPRESSOR STARTUP CONTROL
    20.
    发明公开
    VARIABLE SPEED COMPRESSOR STARTUP CONTROL 审中-公开
    变速压缩机启动控制

    公开(公告)号:EP3186100A1

    公开(公告)日:2017-07-05

    申请号:EP15835252.6

    申请日:2015-08-28

    Abstract: A drive controller for a motor of a compressor includes a drive circuit that applies voltages to windings of the motor. The drive controller includes a speed control module that controls the drive circuit to rotate the motor at a requested speed. The drive controller includes a speed determination module that generates the requested speed. The drive controller includes a locked rotor protection module that identifies a locked rotor condition and, in response to identifying the locked rotor condition, instructs the speed determination module to power down the motor. The locked rotor protection module acquires an estimated speed of the motor upon expiration of a predetermined time interval that begins upon startup of the motor. The locked rotor protection module identifies the locked rotor condition in response to the estimated speed being lower than a threshold speed. The threshold speed is based on the requested speed.

    Abstract translation: 用于压缩机的电动机的驱动控制器包括向电动机的绕组施加电压的驱动电路。 驱动控制器包括速度控制模块,其控制驱动电路以所需速度旋转电机。 驱动控制器包括产生请求速度的速度确定模块。 所述驱动控制器包括锁定的转子保护模块,所述锁定的转子保护模块识别锁定的转子状态并且响应于识别所述锁定的转子状态而指示所述速度确定模块关闭所述电机。 锁定的转子保护模块在马达启动时开始的预定时间间隔期满时获取马达的估计速度。 响应于估计的速度低于阈值速度,锁定的转子保护模块识别锁定的转子状态。 阈值速度基于请求的速度。

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