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公开(公告)号：US20150128662A1
公开(公告)日：2015-05-14
申请号：US14536004
申请日：2014-11-07
Inventor： Kyunghoon KIM , Jayeong YU , Seungjun CHEE , Seungki SUL , Minho JANG
CPC classification number: D06F37/304 , D06F33/02 , D06F2202/12 , D06F2204/06 , H02P6/182 , H02P6/20 , Y02B40/52
Abstract: The laundry treatment machine, absent a position sensor to sense the rotor position of a motor, includes a driving unit having an DC/AC inverter, an voltage detection unit to detect output voltage, and an inverter controller to control the inverter. The output voltage detection unit includes a plurality of resistors connected between the inverter and the motor and a comparator to compare voltage detected by some of the resistors with reference voltage and to detect pulse width modulation (PWM)-based output voltage. The voltage detection unit outputs the PWM-based output voltage output from the comparator to the inverter controller in a first mode in which at least one switching device of the inverter is turned on. The voltage detection unit outputs voltage detected by other some of the resistors to the inverter controller in a second mode in which all switching devices of the inverter are turned off.
Abstract translation: 没有用于感测电动机的转子位置的位置传感器的洗衣处理机包括具有DC / AC逆变器的驱动单元，检测输出电压的电压检测单元和控制逆变器的逆变器控制器。 输出电压检测单元包括连接在逆变器和电动机之间的多个电阻器和比较器，用于将由一些电阻器检测到的电压与参考电压进行比较，并检测基于脉宽调制（PWM）的输出电压。 电压检测单元在逆变器的至少一个开关装置接通的第一模式下输出从比较器输出的基于PWM的输出电压到逆变器控制器。 电压检测单元将其他一些电阻器检测到的电压以逆变器的所有开关装置关闭的第二模式输出到逆变器控制器。
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公开(公告)号：US20180087208A1
公开(公告)日：2018-03-29
申请号：US15715517
申请日：2017-09-26
Applicant: LG ELECTRONICS INC.
Inventor： Hoonbong LEE , Minho JANG , Jaegwang BAE
IPC: D06F39/00 , D06F39/04 , D06F39/02 , D06F37/22 , D06F37/26 , D06F39/08 , D06F37/30 , D06F33/02 , D06F23/02
CPC classification number: D06F39/003 , D06F23/02 , D06F33/02 , D06F37/22 , D06F37/266 , D06F37/304 , D06F39/005 , D06F39/022 , D06F39/045 , D06F39/085 , D06F39/087 , D06F2202/065 , D06F2202/085 , D06F2202/10 , D06F2202/12 , D06F2204/065
Abstract: A washing machine and a method of controlling the same are disclosed. The amount of laundry that is introduced into the washing machine is measured using gravity and inertia applied during the operation of a motor, whereby it is possible to precisely calculate the amount of laundry and to minimize the effects of the initial position of the laundry and the movement of the laundry. In addition, a current value of the motor that is operated is used to measure the amount of laundry without a sensor. Furthermore, precision in determining the amount of laundry is improved, and the amount of laundry is determined within a short time. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.
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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：US20180100260A1
公开(公告)日：2018-04-12
申请号：US15728725
申请日：2017-10-10
Applicant: LG ELECTRONICS INC.
Inventor： Minho JANG , Jaegwang BAE , Hoonbong LEE
IPC: D06F33/02 , D06F39/14 , D06F39/02 , D06F37/22 , D06F37/06 , D06F37/26 , D06F39/00 , D06F39/08 , D06F37/30 , D06F23/02 , D06F37/38
CPC classification number: D06F33/02 , D06F23/02 , D06F35/007 , D06F37/06 , D06F37/22 , D06F37/266 , D06F37/306 , D06F37/38 , D06F39/003 , D06F39/005 , D06F39/008 , D06F39/022 , D06F39/085 , D06F39/087 , D06F39/088 , D06F39/14 , D06F2202/04 , D06F2202/065 , D06F2202/085 , D06F2202/12 , D06F2204/065 , D06F2204/084 , D06F2204/088 , D06F2204/10 , D06F2220/00 , D06F2222/00
Abstract: A washing machine and a method of controlling the same are disclosed. The amount of laundry that is introduced into the washing machine is measured using gravity and inertia applied during the operation of the motor, whereby it is possible to precisely calculate the amount of laundry and to minimize the effects of the initial position of the laundry and the movement of the laundry. In addition, the current value of the motor that is operated is used to measure the amount of laundry without a sensor. Furthermore, the amount of laundry is measured at the rotational speed of the motor at which the laundry clings to the drum, whereby it is possible to minimize an error due to the movement of the laundry to thus improve accuracy. Moreover, it is possible to determine the amount of laundry within a short time. Consequently, it is easy to commence the spin-drying operation, thereby reducing washing time and saving energy.
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5.发明申请公开(公告)号：US20160233816A1
公开(公告)日：2016-08-11
申请号：US15017337
申请日：2016-02-05
Applicant: LG ELECTRONICS INC.
Inventor： Jungmoon JE , Minho JANG , Hyunjin KIM
IPC: H02P29/024 , D06F37/30 , H02P6/08 , H02P27/06 , H02P6/28
CPC classification number: H02P29/0241 , D06F37/304 , H02P6/08 , H02P6/28 , H02P21/28 , H02P27/06
Abstract: The present disclosure relates to a motor driving device and a laundry treatment apparatus. An inverter is configured to convert a DC voltage of DC terminals into an AC voltage according to a switching operation and to output the AC voltage to a motor. A DC terminal voltage detector is configured to detect the voltage of the DC terminals, and an output current detector is configured to detect an output current flowing through the motor. A controller is configured to control the inverter based on the detected output current. The controller controls the motor to operate based on a flux current command value from among the flux current command values and a torque current command value for driving the motor in an overvoltage protection mode when the detected DC terminal voltage is higher than a first predetermined value and power is supplied from the motor to the DC terminals. Abrupt DC terminal voltage increase may be prevented.
Abstract translation: 本发明涉及电动机驱动装置和衣物处理装置。 逆变器被配置为根据开关操作将DC端子的DC电压转换成AC电压并将AC电压输出到电动机。 DC端子电压检测器被配置为检测DC端子的电压，并且输出电流检测器被配置为检测流过电动机的输出电流。 控制器被配置为基于检测到的输出电流来控制逆变器。 控制器根据检测到的直流端子电压高于第一预定值的过电压保护模式中的通量电流指令值中的磁通电流指令值和驱动电动机的转矩电流指令值，控制电动机的动作， 电源从电机供电到直流端子。 可以防止突然的直流端子电压增加。
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Patent Agency Ranking
公开(公告)号：US20160344324A1
公开(公告)日：2016-11-24
申请号：US15160313
申请日：2016-05-20
Applicant: LG ELECTRONICS INC.
Inventor： Minho JANG
CPC classification number: H02P6/20 , D06F37/304 , H02P6/18 , H02P21/14
Abstract: A motor driving apparatus includes an inverter to convert a direct current (DC) voltage into an alternating current (AC) voltage through a switching operation and to output the AC voltage to a motor, an output current detector to detect an output current flowing in the motor, and a controller to control the inverter, wherein, at the time of starting the motor, the controller controls a first current, including a DC component and a high-frequency component, to be supplied to the motor during a first period for alignment of the motor, and controls a second current, including a DC component and a high-frequency component, to be supplied to the motor during a second period for alignment of the motor, and the controller calculates the stator resistance and inductance of the motor based on the first current and the second current. Consequently, it is possible to easily calculate the stator resistance and inductance of the motor during the alignment of the motor.
Abstract translation: 电动机驱动装置包括：逆变器，其通过开关动作将直流（DC）电压转换为交流（AC）电压，并将交流电压输出到电动机;输出电流检测器，检测在 电动机和控制器来控制逆变器，其中，在启动电动机时，控制器控制包括DC分量和高频分量的第一电流，以在第一时间段期间供给到电动机 并且在用于对准电动机的第二时段期间控制包括DC分量和高频分量的第二电流供应到电动机，并且控制器基于电动机的定子电阻和电感计算 在第一个当前和第二个电流。 因此，可以容易地计算电动机对准期间电动机的定子电阻和电感。
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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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公开(公告)号：US20140101865A1
公开(公告)日：2014-04-17
申请号：US14048892
申请日：2013-10-08
Applicant: LG ELECTRONICS INC.
Inventor： Minho JANG , Kyunghoon KIM , Hoonbong LEE
CPC classification number: D06F37/304 , D06F39/003 , D06F2202/12 , D06F2204/065
Abstract: Disclosed are a laundry treatment machine and a method of operating the same. The method of operating the laundry treatment machine that processes laundry via rotation of a wash tub includes accelerating a rotational velocity of the tub during an accelerated rotating section, rotating the tub at a constant velocity during a constant velocity rotating section, and determining an amount of laundry in the tub based on a first output current flowing through a motor that is used to rotate the tub during the accelerated rotating section and a second output current flowing through the motor during the constant velocity rotating section. This ensures efficient sensing of amount of laundry.
Abstract translation: 公开了一种衣物处理机及其操作方法。 操作通过洗涤桶旋转来处理衣物的衣物处理机的方法包括在加速旋转部分期间加速桶的旋转速度，在恒定速度旋转部分期间以恒定速度旋转桶，并且确定 基于流过马达的第一输出电流而在加速旋转部分期间旋转桶的第一输出电流和在恒速旋转部分期间流过马达的第二输出电流进行洗涤。 这样可以有效地检测洗衣量。
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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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公开(公告)号：US20170047875A1
公开(公告)日：2017-02-16
申请号：US15232855
申请日：2016-08-10
Applicant: LG ELECTRONICS INC.
Inventor： Minho JANG , Junho LEE , Chungill LEE
Abstract: A motor driving apparatus included in a home appliance may include an inverter to convert a direct current (DC) power into an alternating current (AC) power through a switching operation and to output the converted AC power to a motor, an output current detector to detect an output current flowing through the motor, a controller to control the inverter, wherein, during a first interval after the motor stops, the controller controls a phase current of a predetermined frequency to flow through the motor to estimate a position of a rotor of the motor, and estimates the position of the rotor of the motor based on the detected output current while the phase current of the predetermined frequency flows through the motor. Thereby, the sensorless motor driving apparatus can easily estimate the position of the motor rotor.
Abstract translation: 包括在家用电器中的电动机驱动装置可以包括逆变器，其通过开关操作将直流（DC）功率转换成交流（AC）电力，并将转换的交流电力输出到电动机，输出电流检测器 检测流过电动机的输出电流，控制器控制逆变器，其中，在电动机停止之后的第一间隔期间，控制器控制预定频率的相电流流过电动机以估计转子的位置 电动机，并且基于检测到的输出电流来估计电动机的转子的位置，同时预定频率的相电流流过电动机。 由此，无传感器电动机驱动装置能够容易地估计电动机转子的位置。
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