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公开(公告)号：US20240079985A1
公开(公告)日：2024-03-07
申请号：US17766939
申请日：2020-10-20
IPC分类号： H02P29/024 , F04B17/03 , F04B49/06 , F04B49/10
CPC分类号： H02P29/0241 , F04B17/03 , F04B49/065 , F04B49/10 , F04B2203/0202 , F04B2203/0209
摘要： Provided is a method for detecting a ripple voltage. A control device is provided with: an acquiring unit which acquires the voltage value of an input voltage of a battery-driven electric compressor at irregular intervals; and a waveform computing unit which computes the waveform of a ripple component of the input voltage on the basis of the acquired voltage value.
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2.发明公开公开(公告)号：US20240088818A1
公开(公告)日：2024-03-14
申请号：US17767826
申请日：2020-10-20
IPC分类号： H02P29/024 , B60H1/32
CPC分类号： H02P29/024 , B60H1/3205
摘要： Provided is a method for determining the generation source of ripple voltage when abnormal ripple voltage is detected. The control device is for an electric compressor, the control device comprising: a detection unit that detects ripple voltage; a judgment unit that judges whether the ripple voltage is abnormal based on the value of the ripple voltage; and a cause determination unit that determines whether the cause of the abnormality is the electric compressor or some other external device, based on the control result of the electric compressor.
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公开(公告)号：US20240102465A1
公开(公告)日：2024-03-28
申请号：US17768169
申请日：2020-10-19
摘要： Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit for detecting the ripple voltage of the electric compressor which is driven by a battery; a determination unit for determining whether or not the value of the ripple voltage is greater than or equal to a predetermined threshold value; and a control unit for reducing the rotation speed of a motor of the electric compressor down to a predetermined first target rotation speed greater than 0 when the value is greater than or equal to the threshold value.
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公开(公告)号：US20200232453A1
公开(公告)日：2020-07-23
申请号：US16634862
申请日：2018-08-15
摘要： A control device for a compressor includes an operation stop control unit that stops the compressor in a procedure different from a normal stop request signal when a signal different from the normal stop request signal that requests the compressor to stop in a predetermined procedure and a forced stop request signal from a device including the compressor is detected. The operation stop control unit stops the compressor in the different procedure according to a speed of the compressor when the forced stop request signal is detected.
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