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公开(公告)号：US20200343834A1
公开(公告)日：2020-10-29
申请号：US16767934
申请日：2018-11-27
Applicant: LG Electronics Inc.
Inventor： Hansu JUNG , Dongwook KIM , Minho JANG
Abstract: A motor drive apparatus includes: a DC-side capacitor charged with direct current power; an inverter unit comprising multiple top switches and bottom switches, performing a switching operation so as to convert power stored in the DC-side capacitor into alternating current power, and outputting the converted alternating current power to a motor; a shunt resistor for detecting a current flowing through the DC-side capacitor; and a controller for controlling the inverter unit to perform dynamic braking for stopping the motor. Before the dynamic braking is performed, the controller controls the inverter unit to gradually increase a phase current flowing through the bottom switches.
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公开(公告)号：US20150047219A1
公开(公告)日：2015-02-19
申请号：US14458602
申请日：2014-08-13
Applicant: LG ELECTRONICS INC.
Inventor： Hoonbong LEE , Hansu JUNG , Suncheol BAE
IPC: D06F58/28
CPC classification number: D06F39/003 , D06F33/02 , D06F58/28 , D06F2058/2861 , D06F2058/2877 , D06F2202/10 , D06F2202/12 , Y02B40/72
Abstract: A method is provided for controlling a laundry treating apparatus. The method may include controlling the drum to accelerate the drum to rotate at a first speed, applying a brake to stop the drum, accelerating the drum to a second speed, sensing a current being applied to the motor while the drum is accelerated to the second speed, and determining a laundry amount based on the sensed current.
Abstract translation: 提供一种用于控制衣物处理装置的方法。 该方法可以包括控制滚筒以加速滚筒以第一速度旋转，施加制动器以停止滚筒，将滚筒加速至第二速度，感测当滚筒加速到第二速度时施加到马达的电流 速度，并且基于感测的电流确定衣物量。
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公开(公告)号：US20210254266A1
公开(公告)日：2021-08-19
申请号：US17053002
申请日：2019-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Hansu JUNG , Jaemin KIM , Sangwoo PARK , Junho LEE , Lisuel LIM
Abstract: A clothing treatment apparatus includes a plurality of inverters for controlling the motors of a drum, a compressor, and a blowing fan, a converter for converting input power input from an external source and outputting the converted power to the inverters, and a control unit for controlling the plurality of inverters and the converter.
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公开(公告)号：US20180035859A1
公开(公告)日：2018-02-08
申请号：US15556128
申请日：2016-03-07
Applicant: LG ELECTRONICS INC.
Inventor： Seongwoo KIM , Hansu JUNG , Chungill LEE
CPC classification number: A47L9/2852 , A47L5/362 , A47L9/009 , A47L9/2805 , A47L9/2826 , A47L9/2894 , A47L2201/04 , B25J13/08 , G05D1/0255 , G05D2201/0215
Abstract: Provided is a vacuum cleaner. The vacuum cleaner includes a cleaner body including a moving device for moving, a suction device connected to the cleaner body to suction dusts and air and guide the suctioned dusts and air to the cleaner body, the suction device including a handle, a detection device for detecting a distance between the handle and the cleaner body, and a controller determining whether movement of cleaner body is necessary on the basis of the distance between the cleaner body and the handle, the controller controlling the moving device when the movement of the cleaner body is necessary. The controller controls the moving device to allow the cleaner body to avoid an obstacle when it is determined that an operation for avoiding the obstacle is necessary while the moving device operates.
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公开(公告)号：US20150128658A1
公开(公告)日：2015-05-14
申请号：US14535780
申请日：2014-11-07
Applicant: LG Electronics Inc.
Inventor： Minho JANG , Hoonbong LEE , Hansu JUNG
CPC classification number: D06F37/304 , D06F33/02 , D06F2202/065 , D06F2202/10 , D06F2202/12 , D06F2204/065 , D06F2222/00 , H02P1/16 , H02P6/18 , H02P6/21 , H02P6/22 , H02P21/34 , Y02B40/52
Abstract: A laundry treatment machine includes a drum, a motor to rotate the drum, and a driving unit to drive the motor, wherein the driving unit includes an inverter to convert direct current (DC) voltage into alternating current (AC) voltage and to output the AC voltage to the motor and an inverter controller to control the inverter to supply an alignment current to the motor so as to align the motor during a starting operation of the motor and to supply a torque current for rotating the motor to the motor together with the alignment current after the motor is aligned. Such a laundry treatment apparatus prevents a reverse rotation phenomenon of the drum due to load.
Abstract translation: 洗衣机包括滚筒，用于旋转滚筒的马达和用于驱动马达的驱动单元，其中驱动单元包括逆变器，用于将直流（DC）电压转换成交流（AC）电压并输出 电动机的交流电压和逆变器控制器，用于控制逆变器向电动机提供对准电流，以便在电动机的启动操作期间对准电动机，并且提供用于将电动机与电动机一起旋转到电动机的转矩电流 电机对齐后的对准电流。 这种洗衣处理装置防止由于负载引起的滚筒的反转现象。
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Patent Agency Ranking
公开(公告)号：US20200162008A1
公开(公告)日：2020-05-21
申请号：US16629267
申请日：2018-07-05
Applicant: LG Electronics Inc.
Inventor： Hansu JUNG , Seokhee CHO , Jungmoon JE
Abstract: The present invention relates to a motor drive apparatus and, more particularly, to a motor drive apparatus capable of immediately restarting by maintaining sensorless control during a stop operation of a motor. The motor drive apparatus comprises: an inverter for driving a motor by using an AC voltage; and a control unit for controlling operations of a switching element included in the inverter. At this time, when a stop command is input, the control unit decreases a duty ratio of a PWM signal until a present speed of the motor becomes smaller than a predetermined minimum speed, thereby decreasing the revolutions per minute of the motor. Then, when a restart command is input in a state where the duty ratio of the PWM signal is decreased, the control unit can immediately restart the motor by increasing the duty ratio of the PWM signal.
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公开(公告)号：US20170070172A1
公开(公告)日：2017-03-09
申请号：US15205638
申请日：2016-07-08
Applicant: LG ELECTRONICS INC. , Pusan National University Industry-University Cooperation Foundation
Inventor： Jungmoon JE , Hansu JUNG , Chungill LEE , Jangmok KIM , Hyunkeun KU , Hanbeom YEOM
CPC classification number: H02P21/24 , H02M7/00 , H02P6/17 , H02P6/18 , H02P6/28 , H02P21/22 , H02P27/08
Abstract: The present invention relates to a motor driving apparatus and a home appliance including the same. A motor driving apparatus according to an embodiment of the present invention includes an inverter for converting a DC voltage of a DC-link capacitor into an AC voltage according to a switching operation and outputting the converted AC voltage to a motor; a DC-link resistor disposed between the DC-link capacitor and the inverter; and a controller for controlling the inverter based on a phase current sampled through the DC-link resistor, wherein the controller estimates a phase current based on the phase current sampled through the DC link resistor, in an interval in which phase current detection is not possible. Thereby, the phase current flowing through the motor may be accurately calculated using the DC link resistor.
Abstract translation: 电动机驱动装置及家用电器技术领域本发明涉及一种电动机驱动装置及其制造方法。 根据本发明的实施例的电动机驱动装置包括：逆变器，用于根据开关操作将直流母线电容器的直流电压转换为交流电压，并将转换的交流电压输出到电动机; 设置在DC链路电容器和逆变器之间的直流链路电阻器; 以及控制器，用于基于通过直流链路电阻器采样的相电流来控制逆变器，其中控制器在不可能进行相电流检测的间隔中基于通过直流链路电阻器采样的相电流来估计相电流 。 因此，可以使用直流链路电阻器精确地计算流过马达的相电流。
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公开(公告)号：US20140115793A1
公开(公告)日：2014-05-01
申请号：US14067762
申请日：2013-10-30
Applicant: LG ELECTRONICS INC.
Inventor： Song HAMIN , Hansu JUNG , Hoonbong LEE
CPC classification number: D06F37/203 , D06F33/02 , D06F2202/10 , D06F2204/065 , D06F2222/00
Abstract: Disclosed are a laundry treatment machine and a method of operating the same. The method of operating a laundry treatment machine includes rotating a drum at a first velocity, forcibly vibrating the drum using a forced vibration generation signal during a first velocity rotating section, and determining whether to accelerate or decelerate the drum after forced vibration. Through this method, laundry position may be determined.
Abstract translation: 公开了一种衣物处理机及其操作方法。 操作衣物处理机的方法包括以第一速度旋转滚筒，在第一速度旋转部分期间使用强制振动产生信号强制振动滚筒，以及确定在强制振动之后是否加速或减速滚筒。 通过该方法，可以确定衣物位置。
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9.发明申请公开(公告)号：US20210058016A1
公开(公告)日：2021-02-25
申请号：US16903807
申请日：2020-06-17
Applicant: LG ELECTRONICS INC.
Inventor： Jae Jun YOU , Hansu JUNG , Jaemin KIM
Abstract: A method and an apparatus may detect a rotor magnetic pole of a single-phase BLDC motor. The method and apparatus may quickly and precisely initially drive the single-phase BLDC motor by detecting a position of a magnetic pole of a rotor adjacent to a stator by applying a high frequency voltage to the single-phase BLDC motor and analyzing a magnitude of a flowing current.
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公开(公告)号：US20200228039A1
公开(公告)日：2020-07-16
申请号：US16739690
申请日：2020-01-10
Applicant: LG Electronics Inc.
Inventor： Kwangsik KIM , Minho JANG , Hansu JUNG
Abstract: Disclosed is about an apparatus, a system, and a method aligning a position of a rotor by applying a specific current to align the rotor a plurality of times to reduce vibration and noise when starting an operation of the motor to align the position of the rotor.
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