公开(公告)号：US20180241339A1

公开(公告)日：2018-08-23

申请号：US15959903

申请日：2018-04-23

申请人： DENSO CORPORATION

发明人： Go ENDOH

IPC分类号： H02P29/64 ,  H02P21/22 ,  B62D5/04

CPC分类号： H02P29/64 ,  B62D5/0409 ,  H02P21/22

摘要： A motor control apparatus that estimates a temperature of a temperature estimation target element at a time of energizing the motor and drives a motor by controlling an electric power is provided. The motor control apparatus includes a primary delay arithmetic unit that outputs a primary delay response as an amount of temperature change, a sensor value adder that adds a sensor value of a temperature sensor to the amount of temperature change, an offset adder that adds an offset temperature to an output of the sensor value adder, a response constant determination portion that determines the gain and the time constant, and an offset temperature determination portion. At least one of the response constant and the offset temperature is changed according to a supply voltage or an input voltage.

公开(公告)号：US10020771B2

公开(公告)日：2018-07-10

申请号：US15431406

申请日：2017-02-13

申请人： FANUC CORPORATION

发明人： Yuuki Morita ,  Tomohisa Tsutsumi

IPC分类号： H02P27/08 ,  H02P29/64

CPC分类号： H02P29/64 ,  H02P27/08 ,  H02P29/032

摘要： A motor controller, a motor control method, and a motor control program are provided, all of which are capable of appropriately suppressing temperature elevation in a motor, while protecting an amplifier. A motor controller for driving a motor by way of pulse width modulation includes: a temperature acquisition unit that acquires a temperature of a motor; a limiting value determination unit that determines, based on the temperature, a limiting current value for driving the motor; and a frequency determination unit that determines, based on the limiting value, a PWM frequency to be generated with an amplifier.

公开(公告)号：US10020770B2

公开(公告)日：2018-07-10

申请号：US15847914

申请日：2017-12-20

申请人： HONDA MOTOR CO., LTD.

发明人： Ken Kitaori ,  Masanari Fukuchi ,  Yoshihiro Ito ,  Satoshi Matsui

IPC分类号： G05D23/00 ,  H02P29/60 ,  B60L7/14 ,  B60L11/08 ,  B60L11/12 ,  B60L11/14 ,  B60L15/02 ,  H02P27/06 ,  B60W20/14 ,  B60K6/442

CPC分类号： H02P29/60 ,  B60K6/442 ,  B60L3/0046 ,  B60L3/0061 ,  B60L7/14 ,  B60L7/18 ,  B60L7/26 ,  B60L15/02 ,  B60L15/2009 ,  B60L15/2045 ,  B60L50/16 ,  B60L50/61 ,  B60L58/12 ,  B60L58/20 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/441 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2260/26 ,  B60W20/14 ,  B60W2510/087 ,  B60W2510/244 ,  B60Y2200/92 ,  H02P21/22 ,  H02P27/06 ,  H02P29/64 ,  Y02T10/6217 ,  Y02T10/643 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7283 ,  Y10S903/93 ,  Y10S903/947

摘要： A vehicle includes an energy storage, a motor driver, an electric motor, and circuitry. The motor driver is configured to convert direct-current power to alternating-current power and to convert alternating-current power to direct-current power. The electric motor is connected to the energy storage via the motor driver to move the vehicle. The circuitry is configured to drive the electric motor with a first current value to consume excess electric power. The first current value is different from a minimum current value to generate regeneration power arising from a braking force. The circuitry is configured to drive the electric motor with a second current value smaller than the first current value if a temperature of the electric motor is higher than a first threshold temperature or a temperature of the motor driver is higher than a second threshold temperature.

公开(公告)号：US09942462B2

公开(公告)日：2018-04-10

申请号：US15455040

申请日：2017-03-09

申请人： LG ELECTRONICS INC.

发明人： Haejin Park ,  Sungdu Kwon ,  Youngman Kwon ,  Jayong Lee ,  Taegil Cho ,  Salkmann Ji ,  Samnyol Hong

IPC分类号： H04N5/232 ,  G02B27/64 ,  G02B7/36 ,  G02B7/09

CPC分类号： H04N5/23212 ,  G02B7/08 ,  G02B7/09 ,  G02B7/28 ,  G02B7/36 ,  G02B7/365 ,  G02B27/646 ,  G05D3/14 ,  H02P7/025 ,  H02P29/64 ,  H02P2203/00 ,  H04N5/06 ,  H04N5/23248 ,  H04N5/23254

摘要： Apparatus and method for controlling auto focus of a camera module. A controller is configured to provide a signal comprising first frequency signal and second frequency signal to a moving coil, a fixed coil receiving the variable current or the variable voltage through the second frequency signal, calculate a focus position value based on the received variable current or the variable voltage and an image signal, and control a lens unit to move according to the calculated focus position value. The controller is further configured to receive the second frequency signal only during a specific time slot in order for the second frequency signal to not include noise due to OIS signal and apply the OIS signal to an OIS coil during the rest of a time slot of the second frequency signal.

公开(公告)号：US09932701B2

公开(公告)日：2018-04-03

申请号：US14982297

申请日：2015-12-29

申请人： WHIRLPOOL CORPORATION

发明人： Matheus Alexandre Bevilaqua ,  Marcelo Campos Silva

IPC分类号： H02P27/06 ,  D06F37/30 ,  H02P29/64 ,  D06F33/02

CPC分类号： D06F37/304 ,  D06F33/02 ,  D06F2202/06 ,  D06F2202/12 ,  D06F2204/06 ,  H02P27/06 ,  H02P29/64 ,  Y02B40/52

摘要： A laundry appliance is provided, comprising a motor and a controller connected to the motor. The controller determines at least one characteristic of the motor, identifies the motor from a plurality of possible known motors based on the at least one characteristic, identifies the rotor from a plurality of possible known rotors based on the at least one characteristic, and configures at least one motor operation parameter based on the identity of the motor and/or rotor. The at least one characteristic may include the resistance of a stator coil and/or a magnetic flux constant.

公开(公告)号：US09930223B2

公开(公告)日：2018-03-27

申请号：US15455060

申请日：2017-03-09

申请人： LG ELECTRONICS INC.

发明人： Haejin Park ,  Sungdu Kwon ,  Youngman Kwon ,  Jayong Lee ,  Taegil Cho ,  Salkmann Ji ,  Samnyol Hong

IPC分类号： H04N5/225 ,  H04N5/06 ,  G02B7/09 ,  G02B7/28 ,  H04N5/232

CPC分类号： H04N5/23212 ,  G02B7/08 ,  G02B7/09 ,  G02B7/28 ,  G02B7/36 ,  G02B7/365 ,  G02B27/646 ,  G05D3/14 ,  H02P7/025 ,  H02P29/64 ,  H02P2203/00 ,  H04N5/06 ,  H04N5/23248 ,  H04N5/23254

摘要： Disclosed are an apparatus and method for controlling auto focus of a camera module. The present invention includes a lens unit, a moving coil, a fixed coil, and a controller configured to provide a signal comprising first frequency signal and second frequency signal to the moving coil, the fixed coil receiving a variable current or a variable voltage through the second frequency signal, calculate a focus location value based on the received variable current or variable voltage and an image signal, and control the lens unit to move by applying the first frequency signal to the moving coil according to the calculated focus location value, the second frequency signal is higher than the first frequency signal and is comprised of the signal during a prescribed time.

公开(公告)号：US09929686B2

公开(公告)日：2018-03-27

申请号：US15647597

申请日：2017-07-12

申请人： Konica Minolta, Inc.

发明人： Daichi Suzuki ,  Yuta Tachibana ,  Hiroyuki Yoshikawa ,  Yasuhiro Koide

IPC分类号： G05D23/00 ,  H02P21/26 ,  H02P21/14 ,  H02P21/18 ,  G01K7/16 ,  H02P6/17 ,  H02K1/27 ,  H02K17/14 ,  H02K19/12 ,  H02K19/32

CPC分类号： H02P21/26 ,  G01K7/16 ,  G03G21/16 ,  H02K1/2753 ,  H02K1/2786 ,  H02K17/14 ,  H02K19/12 ,  H02K19/32 ,  H02P6/17 ,  H02P21/141 ,  H02P21/18 ,  H02P25/022 ,  H02P29/64 ,  H02P29/662

摘要： A controller for a permanent magnet synchronous motor includes an estimating portion configured to determine an estimated value of a rotational speed of the rotor and an estimated value of a position of magnetic poles of the rotor based on a value of the current detected by the current detector and a parameter value indicating an interlinkage magnetic flux caused by the permanent magnet across the winding; a control unit configured to control the drive portion to cause the rotating magnetic field based on the estimated value of the rotational speed and the estimated value of the position of the magnetic poles; and a correction portion configured to correct the parameter value indicating the interlinkage magnetic flux based on correction information, the correction information being determined based on a temperature of the winding and a relationship between the temperature of the winding and a temperature of the permanent magnet.

公开(公告)号：US20180079311A1

公开(公告)日：2018-03-22

申请号：US15562241

申请日：2016-03-18

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Tetsuro ICHIKAWA ,  Tomohiro FUKUSHIMA ,  Hideki KAKISAKO ,  Shota HIROSE

IPC分类号： B60L3/06 ,  H02P29/62 ,  H02P29/032

CPC分类号： B60L3/06 ,  B60L3/00 ,  B60L3/0061 ,  B60L3/12 ,  B60L11/123 ,  B60L11/14 ,  B60L2220/50 ,  B60L2240/423 ,  B60L2240/425 ,  H02P29/024 ,  H02P29/032 ,  H02P29/62 ,  H02P29/64 ,  Y02T10/642

摘要： A control system for a vehicle drive motor includes a motor torque obtaining portion, a current distributing state obtaining portion obtaining a state of current distribution to coils of respective phases of a stator of the motor, a temperature sensor detecting temperature of a specific phase coil, a motor torque control portion updating other phase estimated temperatures by using the coil sensor temperature and an added-up value of a temperature rise per unit time of each of other phase coils at each time point, the motor torque control portion controlling the motor torque by using the other phase estimated temperatures, wherein the temperature rise per unit time of each of the other phase coils at each time point is determined by the motor torque control portion in accordance with a combination of the motor torque and the state of current distribution at each time point.

公开(公告)号：US20180041156A1

公开(公告)日：2018-02-08

申请号：US15550228

申请日：2015-04-09

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Satoshi KAWAMURA ,  Kenta HATANO

IPC分类号： H02P29/64 ,  H02P29/66 ,  H02K21/14 ,  B60L15/20 ,  H02K11/25

CPC分类号： F16H61/32 ,  B60L15/20 ,  B60L2240/16 ,  B60L2240/36 ,  B60L2240/425 ,  H02K11/25 ,  H02K21/14 ,  H02P7/02 ,  H02P29/60 ,  H02P29/64 ,  H02P29/662 ,  Y02T10/7258

摘要： A position sensor mounted in an actuator includes a magnetic detecting element for detecting the position of a shaft, and a temperature detecting element for detecting intra-sensor temperature which is used for correction of the temperature characteristics of the magnetic detecting element, the magnetic detecting element and the temperature detecting element being built therein. A control device for the actuator acquires both the temperature-corrected position of the shaft and the intra-sensor temperature from the position sensor, and uses them for control of the actuator.

公开(公告)号：US20180037253A1

公开(公告)日：2018-02-08

申请号：US15670992

申请日：2017-08-07

申请人： DENSO CORPORATION

发明人： Ryo KANO ,  Takashi SUZUKI

IPC分类号： B62D5/04

CPC分类号： B62D5/0412 ,  B62D5/0406 ,  B62D5/0463 ,  B62D5/0496 ,  H02K11/25 ,  H02K11/33 ,  H02P29/032 ,  H02P29/64 ,  H02P29/68

摘要： A rotary electrical machine control apparatus is provided which controls drive of a rotary electrical machine having a plurality of winding sets. The apparatus includes inverters that are provided so as to respectively correspond to the winding sets, a temperature detection element that detects a base element that is used as a base for estimation of inverter temperatures, which are temperatures of the inverters, and a control section that has a temperature estimation section that estimates the inverter temperatures based on the base temperature and a temperature change amount generated due to current application to the inverters. On-resistance of the switching elements of the first inverter is smaller than on-resistance of the switching elements of the second inverter. The temperature detection element is disposed in an area, a distance between the area and the first inverter being shorter than a distance between the area and the second inverter.