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公开(公告)号：US20220393622A1
公开(公告)日：2022-12-08
申请号：US17697607
申请日：2022-03-17
发明人： Seung Hyeon BIN , Han Hee PARK , Seong Min KIM , Ho Rim CHOI , Seon Mi LEE , Sang Woo PARK , Tae Il YOO , Ho Sun JANG
摘要： An automotive motor driving apparatus includes: a first motor including a plurality of wires; and a second motor including a plurality of wires including first ends connected to each other. The motor driving apparatus includes: a first inverter connected to first ends of the wires of the motor and including a plurality of first switching devices; a second inverter connected to second ends of the wires of the first motor and including a plurality of second switching devices; a third inverter connected to second ends of the wires of the second motor; and a controller configured to drive the second motor by performing pulse width control on the third switching devices when a problem occurs in the second inverter while driving the first motor in an open end winding mode in which pulse width modulation control is performed on both of the first switching devices and the second switching devices.
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公开(公告)号：US20220123687A1
公开(公告)日：2022-04-21
申请号：US17388867
申请日：2021-07-29
发明人： Tae Il YOO , Seong Min KIM , Seon Mi LEE , Ho Sun JANG , Ho Rim CHOI , Han Hee PARK , Seung Hyeon BIN
IPC分类号： H02P29/66
摘要： An iron loss reduction control apparatus for motor permanent magnet overtemperature protection is provided. The apparatus includes: a permanent magnet temperature prediction unit configured to predict a temperature of a permanent magnet in a motor based on a driving state of the motor; a first iron loss reduction unit configured to adjust a switching frequency of a switching element in an inverter providing a driving power to the motor based on the temperature of the permanent magnet; and a second iron loss reduction unit configured to adjust a current command of the motor based on the temperature of the permanent magnet.
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公开(公告)号：US20230223888A1
公开(公告)日：2023-07-13
申请号：US17868245
申请日：2022-07-19
发明人： Seung Hyeon BIN , Han Hee PARK , Seong Min KIM , Ho Rim CHOI , Seon Mi LEE , Sang Woo PARK , Tae Il YOO , Ho Sun JANG
IPC分类号： H02P29/028 , H02P25/22 , H02P27/08
CPC分类号： H02P29/028 , H02P25/22 , H02P27/08
摘要： A motor driving device for driving a motor having multiple windings corresponding to multiple phases, respectively, may include: a first inverter including multiple first switching elements and connected to a first end of each of the multiple windings; a second inverter including multiple second switching elements and connected a second end of each of the multiple windings; a third switching element configured to connect/disconnect points, at which the number of turns of each of the multiple windings is partitioned based on a predetermined ratio, to/from each other; and a controller configured to control, based on the required output of the motor, an on/off state of the first switching elements to the third switching element.
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公开(公告)号：US20220173687A1
公开(公告)日：2022-06-02
申请号：US17382898
申请日：2021-07-22
发明人： Ho Rim CHOI , Han Hee PARK , Seong Min KIM , Seon Mi LEE , Ho Sun JANG , Tae Il YOO , Seung Hyeon BIN
摘要： A motor driving apparatus may include a first inverter circuit including a plurality of first switching devices and connected to a first end portion of each of a plurality of windings in a motor corresponding to a plurality of phases of the motor, respectively, a second inverter circuit including a plurality of second switching devices and connected to a second end portion of each of the plurality of windings, and a plurality of selection switching devices having first end portions connected to a node to which the plurality of windings and the plurality of second switching devices are connected and second end portions connected to each other.
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公开(公告)号：US20200182110A1
公开(公告)日：2020-06-11
申请号：US16402033
申请日：2019-05-02
发明人： Young Jun LEE , Woul Sun CHOI , Ho Sun JANG , Tae Hyung KOO
摘要： In a hybrid vehicle, a hybrid type lubrication control valve which is a solenoid valve type turned on/off by electricity is used as a lubrication system component for circulating lubricating oil to a transmission and an engine clutch. A method for diagnosing sticking of a lubrication control valve of a hybrid vehicle includes measuring a drag torque acting on an input shaft of the transmission through an output shaft of the motor by measuring a first drag torque in an off-state of the independent type lubrication control valve and a second drag torque in an on-state thereof; and determining whether or not the independent type lubrication control valve is stuck, on the basis of a torque difference between the first drag torque and the second drag torque. The method can diagnose a stuck state of the hybrid type lubrication control valve using motor speed control, before starting the vehicle.
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公开(公告)号：US20200180655A1
公开(公告)日：2020-06-11
申请号：US16396533
申请日：2019-04-26
发明人： Young Jun LEE , Woul Sun CHOI , Ho Sun JANG , Tae Hyung KOO
IPC分类号： B60W50/032 , F16K29/00 , B60W50/10 , F16K31/06 , F16K3/36
摘要： In a hybrid vehicle, a hybrid type lubrication control valve which is a solenoid valve type turned on/off by electricity is used as a lubrication system component for circulating lubricating oil to a transmission and an engine clutch. A method includes measuring, by an engine clutch pressure sensor, first engine clutch engagement pressure in an off-state of the independent type lubrication control valve and second engine clutch engagement pressure in an on-state thereof; and determining, by the TCU, whether or not the independent type lubrication control valve is stuck, on the basis of a pressure difference between the first engine clutch engagement pressure and the second engine clutch engagement pressure. The method can diagnose a stuck state of the hybrid type lubrication control valve using hydraulic pressure for operating engine clutch engagement, before starting the vehicle.
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