公开(公告)号：US20230031870A1

公开(公告)日：2023-02-02

申请号：US17962189

申请日：2022-10-07

申请人： Lutron Technology Company LLC

发明人： Gregory S. Altonen ,  Nikhil V. Bhate ,  Chris Dimberg ,  Matthew P. McDonald ,  Rebecca Michalski

IPC分类号： H02P27/08 ,  B60L50/51 ,  B60L15/08 ,  G01R19/165 ,  H02M7/5387 ,  H02P25/18

摘要： A wall-mountable load control device may include an illuminated rotary knob for providing a nightlight feature. The load control device may be configured to control an intensity of a lighting load. The load control device may include a yoke adapted to be mounted to an electrical wall box, an enclosure attached to the yoke, a faceplate attached to the yoke and having an opening, a mounting member attached to the yoke, and/or a potentiometer located within the enclosure and having a shaft extending through an opening in the yoke and the opening of the faceplate. The load control device may include a collar attached to the boss of the mounting member and surrounding the shaft of the potentiometer. The mounting member may be configured to conduct light from at least one light source housed within the enclosure to illuminate the faceplate.

公开(公告)号：US11453294B2

公开(公告)日：2022-09-27

申请号：US16826947

申请日：2020-03-23

申请人： Marelli Corporation

发明人： Teruyoshi Mihara

IPC分类号： H02P27/04 ,  B60L15/20 ,  B60L53/20 ,  B60L50/60 ,  B60L15/04 ,  B60L15/08 ,  H02M7/5387 ,  H02P27/06

摘要： A motor is stably driven under an extremely low temperature. A control unit controls an inverter to extract a pulse-like direct current from a battery, in case where a temperature Temp of the battery is below a predetermined value TH at which a power that can drive a motor is continuously extractable, by cyclically repeating an on-period to extract the direct current that can drive the motor from the battery and an off-period in which, after the on-period, the power is not extracted from the battery until the direct current that can drive the motor becomes extractable from the battery again. The inverter converts, to a phase current, the direct current extracted from the battery in the on-period.

公开(公告)号：US10715057B2

公开(公告)日：2020-07-14

申请号：US16332204

申请日：2017-09-14

申请人： VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH

发明人： Qiong Gu ,  Holger Hoffmann ,  Thomas Slavik

IPC分类号： H02M3/155 ,  H02M7/5387 ,  B60L15/08 ,  H03K17/14 ,  H03K17/16 ,  H02M1/00

摘要： The invention relates to a method for operating a current converter, in particular of an electric machine, in which, for the or for each semiconductor switch of the current converter, a control signal (P′) for setting a switch-off speed (Anew) is generated, wherein an electric intermediate circuit voltage (Udc) of an intermediate circuit is measured and compared to a voltage threshold value (Uthresh), wherein an operating temperature (TB) of the respective semiconductor switch is measured and compared to a temperature threshold value (Tthresh), wherein a load current (Ic) switched by means of the respective semiconductor switch is measured and compared to a current threshold value (Ithresh), and wherein the control signal (P′) for setting the switch-off speed (Anew) is generated on the basis of the comparisons.

公开(公告)号：US20190248248A1

公开(公告)日：2019-08-15

申请号：US16269835

申请日：2019-02-07

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yoshihiro SHAMOTO ,  Kazuhito HAYASHI ,  Hiroyuki OYANAGI

IPC分类号： B60L15/22 ,  B60L15/08 ,  H02P27/08

摘要： A controller of an electrically powered vehicle includes an electronic control unit. The electronic control unit performs a switching control by a square wave control in a first switching mode when a rotation speed of the motor is equal to or higher than a first predetermined rotation speed. The electronic control unit performs the switching control by the square wave control in a second switching mode when the rotation speed of the motor is lower than the first predetermined rotation speed. The first predetermined rotation speed is a rotation speed lower than a first resonance region. The first switching mode is a mode of a switching pattern that suppresses LC resonance in the first resonance region. The second switching mode is a mode of a switching pattern that suppresses LC resonance in a second resonance region lower than the first predetermined rotation speed.

公开(公告)号：US10116241B2

公开(公告)日：2018-10-30

申请号：US14917824

申请日：2013-10-23

申请人： Mitsubishi Electric Corporation

发明人： Yasufumi Ogawa

IPC分类号： H02P6/10 ,  H02P7/08 ,  B60L15/08 ,  H02P27/08 ,  B60L11/18 ,  B60L15/20

摘要： A second upper-lower limit clipping unit performs an upper-lower limit clipping with an upper limit torque greater than that of a first upper-lower limit clipping unit, with respect to a value obtained by executing torque ripple correction by subtracting a torque ripple correction amount calculated by a torque ripple correction amount calculation unit, from a torque command subjected to the upper-lower limit clipping by the first upper-lower limit clipping unit. A carrier frequency correction amount calculation unit calculates a carrier frequency correction amount for correcting a carrier frequency of a power converter for driving the motor, in order to reduce losses in the power converter which have been increased by the execution of the torque ripple correction.

公开(公告)号：US10052970B2

公开(公告)日：2018-08-21

申请号：US15422027

申请日：2017-02-01

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Takashi Takagi

IPC分类号： H02P5/74 ,  B60L15/08 ,  B60L11/18 ,  H02P27/08

CPC分类号： B60L15/08 ,  B60L50/51 ,  B60L2210/44 ,  H02M1/44 ,  H02M7/48 ,  H02P5/74 ,  H02P27/085 ,  H02P29/50 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7241

摘要： A power converting apparatus for vehicles according to an embodiment controls a plurality of AC motors for vehicle traveling set on a motor setting table. The power converting apparatus includes a plurality of inverter circuits and a plurality of controllers. The plurality of inverter circuits supply three-phase AC power to the AC motors. The plurality of controllers generate control signals for ON/OFF-controlling a plurality of switching elements of the inverter circuits and perform PWM control on the inverter circuits associated with the plurality of controllers among the plurality of inverter circuits. The plurality of controllers perform the PWM control on the associated inverter circuits according to control signals generated using carrier waves having phases different from one another. A phase difference between the carrier waves is based on the number of the plurality of AC motors set on the motor setting table.

公开(公告)号：US09731624B2

公开(公告)日：2017-08-15

申请号：US15265934

申请日：2016-09-15

申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

发明人： Yuichiro Morita ,  Shigeyuki Yoshihara ,  Kazuo Ishida ,  Noritaka Ito ,  Hirofumi Shimada

IPC分类号： H02P23/00 ,  B60L15/08 ,  B60T7/02 ,  B60T7/12 ,  B60T8/88 ,  B60L3/00 ,  B60L3/04 ,  B60L11/00 ,  B60L11/08 ,  E02F9/20 ,  B60L15/20 ,  H02P27/08

CPC分类号： B60L15/08 ,  B60L3/0023 ,  B60L3/0084 ,  B60L3/04 ,  B60L11/005 ,  B60L11/08 ,  B60L15/2009 ,  B60L2200/40 ,  B60L2210/40 ,  B60L2240/30 ,  B60L2240/80 ,  B60T7/02 ,  B60T7/12 ,  B60T8/885 ,  E02F9/207 ,  H02P27/08 ,  Y02T10/70 ,  Y02T10/7022 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7258 ,  Y10S903/906

摘要： An electric driving wheel type work vehicle has a traveling motor, an inverter for supplying the motor with three-phase power converted from DC power, a pre-driver circuit for supplying a gate signal to the inverter on the basis of an input PWM signal, a controller for outputting to the pre-driver circuit the PWM signal for controlling the driving of the motor, a parking brake, and a parking brake condition detector that detects the condition of the parking brake. When it is detected that the parking brake has been operated, the pre-driver circuit cuts off the output of the gate signal or the input of the PWM signal to the pre-driver circuit.

公开(公告)号：US09403445B2

公开(公告)日：2016-08-02

申请号：US14540429

申请日：2014-11-13

申请人： DENSO CORPORATION

发明人： Jun Tarui

IPC分类号： B60K23/00 ,  B60L15/08 ,  H02P6/16

CPC分类号： B60L15/08 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2220/18 ,  B60L2240/421 ,  H02P6/16 ,  Y02T10/644 ,  Y02T10/645

摘要： A motor controller includes a motor, an encoder, and a control circuit. The motor drives a target object to be controlled. The encoder outputs a pulse signal synchronously with rotation of the motor. The control circuit rotates the motor based on a count value of the pulse signal. The control circuit switches to a sleep mode when making sure that a rotation position of the motor is stable after finishing rotating the motor or when a predetermined time necessary for the rotation position of the motor to be stable elapses after finishing rotating the motor. When a change in the pulse signal during a period of time where the control circuit is in the sleep mode is not smaller than a predetermined amount, the control circuit performs a learning process to learn a reference position of the motor when returning to a wakeup mode from the sleep mode.

摘要翻译： 电动机控制器包括电动机，编码器和控制电路。 电机驱动要控制的目标物体。 编码器与电机的旋转同步输出脉冲信号。 控制电路基于脉冲信号的计数值来旋转电动机。 在完成旋转电机之后，或者当完成电动机旋转完成电动机转动位置所需的预定时间过后，控制电路切换到休眠模式。 当在控制电路处于睡眠模式的时间段期间脉冲信号的变化不小于预定量时，控制电路执行学习处理以在返回到唤醒模式时学习电动机的参考位置 从睡眠模式。

公开(公告)号：US20160211790A1

公开(公告)日：2016-07-21

申请号：US14902352

申请日：2014-05-21

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Toshiyuki Ajima ,  Kimihisa Furukawa ,  Kohei Myeon ,  Hiroyuki Yamada

IPC分类号： H02P27/08 ,  B60L15/08 ,  B60L15/00 ,  B60L11/18 ,  B62D5/04

CPC分类号： H02P27/08 ,  B60L11/14 ,  B60L11/1803 ,  B60L11/1868 ,  B60L15/007 ,  B60L15/08 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/526 ,  B60L2240/527 ,  B62D5/046 ,  H02M7/5395 ,  H02M2007/4803 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y10S903/904

摘要： Provided are an inverter device deterring PWM voltage error even if high inverter output frequencies are used for overmodulation driving and an electric vehicle equipped with the inverter device. In an angular section where the output voltage from an inverter device is linearly approximated with the zero cross point as the center thereof, a PWM generator in the inverter device changes either the time interval between the centers of PWM ON pulses or the time interval between the centers of PWM OFF pulses depending on the inverter operation state. An electric vehicle is equipped with the inverter device, which drives a motor.

摘要翻译： 提供了即使用于过调制驱动的高逆变器输出频率以及配备有逆变器装置的电动车辆也能够抑制PWM电压误差的逆变器装置。 在逆变器装置的输出电压以零交叉点作为其中心线性近似的角部分中，逆变器装置中的PWM发生器改变PWM导通脉冲的中心之间的时间间隔或者在 PWM OFF脉冲的中心取决于变频器的运行状态。 电动车配备有驱动电动机的逆变器装置。

公开(公告)号：US20080202831A1

公开(公告)日：2008-08-28

申请号：US12039010

申请日：2008-02-28

申请人： JOEL PATRICK GOUKER

发明人： JOEL PATRICK GOUKER

IPC分类号： B60W10/08 ,  B60L15/08 ,  B60W20/00 ,  B60L11/02

CPC分类号： B60L11/12 ,  B60L1/006 ,  B60L11/1803 ,  Y02T10/7005 ,  Y02T10/7077 ,  Y10S903/93

摘要： A system and for generating power associated with a hybrid vehicle or electrically propelled vehicle comprises a mode selector for selecting at least one of an operational mode and a power generation mode. A controller activates one or more switches to disconnect an inverter output from a drive electrical path to a drive motor and to connect the inverter output to a power generation path if the vehicle is in the power generation mode. An inverter inverts a direct voltage signal to an alternating current signal with a desired frequency in the power generation path. A transformer increases a voltage level of the alternating current signal to a desired voltage level.

摘要翻译： 用于产生与混合动力车辆或电动推进车辆相关联的动力的系统包括用于选择操作模式和发电模式中的至少一个的模式选择器。 控制器激活一个或多个开关，以将驱动电路的变频器输出断开到驱动电动机，并且如果车辆处于发电模式，则将逆变器输出连接到发电路径。 在发电路径中，逆变器将直流电压信号转换成具有期望频率的交流信号。 变压器将交流信号的电压电平增加到期望的电压电平。