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公开(公告)号：EP3633848A1
公开(公告)日：2020-04-08
申请号：EP18806232.7
申请日：2018-05-17
发明人： JIANG, Xiaojun , YANG, Likun , STANKE, Edwin J. , XIE, Jinlan
摘要： A control method and a control system (2), by which a motor (31) can be controlled. The control system (2) comprises a central processing module (22) and a drive control module (23). In a period in which a voltage is not applied to any phase coil of the motor (31), the drive control module (23) collects voltages of the coil to which the voltage is not applied, and converts the voltages of the coil into digital signals. The central processing module (22) reads the digital signals and determines whether the running speed of the motor (31) is consistent with a preset speed depending on whether an average value of the digital signals falls within a preset threshold range, which helps to improve the control precision.
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公开(公告)号：EP3677859A1
公开(公告)日：2020-07-08
申请号：EP18850096.1
申请日：2018-08-08
发明人： ZHANG, Bin , XIE, Jinlan
摘要： Disclosed are a control method and a control system. A valve closing position of a valve device (1) can be controlled according to the current flow direction or working mode of a refrigerant. The stroke of the valve device (1) from a fully-opening position to a fully-closed position is defined as a total valve closing stroke. When the flow direction of the refrigerant is a forward direction, the valve device (1) is controlled to run to a first valve closing position, and when the flow direction of the refrigerant is a reverse direction, the valve device (1) is controlled to run to a second valve closing position. The first valve closing position is different from the second valve closing position, and in this way, wear caused by valve closing can be reduced.
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公开(公告)号：EP3633845A1
公开(公告)日：2020-04-08
申请号：EP18805756.6
申请日：2018-05-17
发明人： JIANG, Xiaojun , YANG, Likun , STANKE, Edwin J , XIE, Jinlan
摘要： A control system (2) and a control method, used for controlling a motor (31). The control system (2) comprises a central processing module (22) and a drive control module (23). In a period in which a voltage is not applied to any phase coil of the motor (31), the drive control module (23) collects voltages of the phase coil, converts the voltages of the coil into digital signals and stores the digital signals. The central processing module (22) reads the digital signals from the drive control module (23), accumulates the digital signals to obtain an accumulated value, and determines the operating condition of the motor (31) according to a relationship between the cumulative value and a preset threshold, thereby improving the reliability of the motor control.
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