公开(公告)号：US11955918B2

公开(公告)日：2024-04-09

申请号：US17860074

申请日：2022-07-07

申请人： ANPEC ELECTRONICS CORPORATION

发明人： Ming-Jung Tsai

IPC分类号： H02P6/08 ,  H02K11/33 ,  H02P6/20

CPC分类号： H02P6/08 ,  H02K11/33 ,  H02P6/20 ,  H02P2209/11 ,  H02P2209/13

摘要： A motor driver having a startup adjusting mechanism is provided. A steady-state detector circuit detects data for driving a motor to stably rotate to output a steady-state detected signal. A startup waveform pattern circuit selects one of a plurality of startup waveform patterns to output a startup waveform pattern signal according to the steady-state detected signal. A startup waveform generator circuit outputs a startup waveform signal according to the startup waveform pattern signal. A motor controlling circuit controls a motor driving circuit to start up the motor according to the startup waveform signal.

公开(公告)号：US20180351484A1

公开(公告)日：2018-12-06

申请号：US15992594

申请日：2018-05-30

申请人： CANON KABUSHIKI KAISHA

发明人： Yoshihiro Mizuo ,  Nobuyuki Horie

IPC分类号： H02P6/16 ,  H02P6/24 ,  H02P6/20

CPC分类号： H02P6/16 ,  H02P6/20 ,  H02P6/24 ,  H02P2209/11 ,  H02P2209/13

摘要： A motor drive device includes a detecting unit that detects a rotational position of a rotor, a drive waveform generating circuit that generates a drive waveform, a control unit that synchronizes a phase of the rotational position of the rotor and a phase of the drive waveform, and a phase difference setting unit that sets a phase difference between the rotational position and the drive waveform during synchronization. An Apos generating unit calculates and outputs a position count proportional to a rotation amount of the rotor. A Bpos generating unit acquires the position count from the Apos generating unit and converts the count into a count value with the upper limit value as the maximum value. A Cpos generating unit multiplies the count value acquired from the Bpos generating unit by the conversion ratio, and calculates a count value with a predetermined upper limit value as the maximum value.

公开(公告)号：US20160311426A1

公开(公告)日：2016-10-27

申请号：US15102222

申请日：2014-11-19

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryoji SATO

IPC分类号： B60W20/15 ,  B60L15/20 ,  B60W10/08

CPC分类号： B60W20/15 ,  B60L3/04 ,  B60L7/14 ,  B60L11/005 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1864 ,  B60L11/1881 ,  B60L15/007 ,  B60L15/025 ,  B60L15/06 ,  B60L15/08 ,  B60L15/2009 ,  B60L15/2045 ,  B60L2210/14 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/527 ,  B60L2240/529 ,  B60L2250/12 ,  B60L2250/16 ,  B60L2250/18 ,  B60L2250/24 ,  B60L2250/30 ,  B60L2270/142 ,  B60W10/08 ,  H02P6/08 ,  H02P23/0086 ,  H02P23/009 ,  H02P2209/07 ,  H02P2209/11 ,  H02P2209/13 ,  Y02T10/6217 ,  Y02T10/643 ,  Y02T10/644 ,  Y02T10/7022 ,  Y02T10/7061 ,  Y02T10/7077 ,  Y02T10/7225 ,  Y02T10/7241 ,  Y02T10/7283 ,  Y02T90/34 ,  Y10S903/906

摘要： In a hybrid vehicle, noise occurrence caused in a rectangular wave control of a motor is restricted when a motor running mode is selected with a converter boosting limit applied. A motor controller for a hybrid vehicle mounted with an internal combustion engine and a motor as power sources is provided. The motor controller includes a converter capable of boosting a voltage supplied from a power supply device; an inverter which converts an output voltage of the converter to an AC voltage and applies the AC voltage to the motor; and a control unit which controls the inverter to drive the motor by switching between two or more control modes. When a running mode to drive the vehicle by a motor power alone is selected with a boost limit applied to the output voltage of the converter and when the motor is driven in a rectangular wave control mode or an overmodulation PWM control mode, the control unit raises the output voltage of the converter higher than a boost limit value and controls the inverter such that the control mode is switched to drive the motor in a sinusoidal PWM control mode.

摘要翻译： 在混合动力车辆中，当利用转换器升压极限选择电动机运行模式时，限制了电动机的矩形波控制引起的噪声发生。 提供一种用于混合动力车辆的电动机控制器，其安装有内燃机和电动机作为动力源。 电动机控制器包括能够升高从电源装置供给的电压的转换器; 逆变器，其将转换器的输出电压转换为AC电压，并将AC电压施加到电动机; 以及控制单元，其通过在两个或更多个控制模式之间切换来控制所述逆变器来驱动所述电动机。 当通过单独的电动机功率来驱动车辆的行驶模式被选择，其中施加到转换器的输出电压的升压极限，并且当以矩形波控制模式或过调制PWM控制模式驱动电动机时，控制单元升高 转换器的输出电压高于升压极限值，并控制逆变器，使控制模式切换，以正弦PWM控制模式驱动电机。

公开(公告)号：US20150155804A1

公开(公告)日：2015-06-04

申请号：US14412252

申请日：2013-06-06

申请人： DENSO CORPORATION

发明人： Koji Sakai

IPC分类号： H02P6/00

CPC分类号： H02P6/28 ,  H02M1/15 ,  H02M7/53875 ,  H02M7/5395 ,  H02P6/08 ,  H02P27/06 ,  H02P27/085 ,  H02P2209/13

摘要： A motor driving device includes an inverter circuit having switching elements; and a control device controlling the switching of the switching elements. The control device sets a carrier frequency to f1 when a two-phase modulation scheme is selected, and sets the carrier frequency to f0, which is half of the carrier frequency f1, when a three-phase modulation scheme is selected. Thereby, the frequency of the secondary component of a current flowing in a filter circuit of when selecting the three-phase modulation scheme may be deviated from the resonance frequency of the filter circuit. Accordingly, the current ripple generated in the filter circuit may be reduced even when selectively switching the modulation scheme for the PWM modulation among a plurality of modulation schemes.

摘要翻译： 电动机驱动装置包括具有开关元件的逆变器电路; 以及控制开关元件的切换的控制装置。 当选择两相调制方案时，控制装置将载波频率设置为f1，并且当选择三相调制方案时，将载波频率设置为f0，其为载波频率f1的一半。 因此，当选择三相调制方案时，在滤波电路中流动的电流的次要分量的频率可能偏离滤波器电路的谐振频率。 因此，即使在多个调制方案中选择性地切换用于PWM调制的调制方案时，也可能降低滤波电路中产生的电流纹波。

公开(公告)号：US20140077739A1

公开(公告)日：2014-03-20

申请号：US13623425

申请日：2012-09-20

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Chang-Jiang Wang ,  Michael W. Degner ,  William Reynolds

IPC分类号： H02P6/14

CPC分类号： H02P6/16 ,  B60L11/123 ,  B60L11/14 ,  B60L15/2054 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/461 ,  B60L2240/80 ,  B60L2250/26 ,  H02P2209/13 ,  Y02T10/6217 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T90/16

摘要： An embedded controller in a vehicle electronics subsystem includes a signal processing circuit used to communicate with an electric machine. The signal processing circuit may be configured to receive an input signal from the electric machine and provide digital output signals to the embedded controller. The digital output signals may include Hall position and rotor position signals. Once the digital output signals are processed by a processor embedded within the controller, the processor may issue a control command to the electric machine. The processor may have memory containing software to make the processor execute the computation of the control command of the electric machine in accordance with a torque command.

摘要翻译： 车载电子系统中的嵌入式控制器包括用于与电机通信的信号处理电路。 信号处理电路可以被配置为从电机接收输入信号，并向嵌入式控制器提供数字输出信号。 数字输出信号可以包括霍尔位置和转子位置信号。 一旦数字输出信号由嵌入在控制器内的处理器处理，则处理器可向电机发出控制命令。 处理器可以具有包含软件的存储器，以使处理器根据转矩指令执行电机的控制命令的计算。

公开(公告)号：US12006615B2

公开(公告)日：2024-06-11

申请号：US17340577

申请日：2021-06-07

申请人： Samsung Electronics Co., Ltd.

发明人： Kosaku Adachi ,  Hiroyuki Miyake

IPC分类号： H02P27/08 ,  D06F34/04 ,  D06F34/06 ,  D06F34/08

CPC分类号： D06F34/08 ,  D06F34/04 ,  D06F34/06 ,  H02P27/085 ,  H02P2209/13

摘要： A washing machine is provided. The washing machine includes an inner tub, a motor connected to the inner tub through a rotating shaft, an inverter circuit operatively connected to the motor and comprising three pairs of bridged switching elements, and at least one processor configured to provide a modulation signal to the inverter circuit to turn on or off the three pairs of bridged switching elements so as to convert DC power into AC power. The at least one processor is further configured to provide the modulation signal to two pairs of switching elements among the three pairs of bridged switching elements for a first time period in a first mode, provide the modulation signal to the three pairs of bridged switching elements for a second time period in a second mode, ad alternately perform the first mode and the second mode.

公开(公告)号：US20190212733A1

公开(公告)日：2019-07-11

申请号：US16358125

申请日：2019-03-19

申请人： SZ DJI TECHNOLOGY CO., LTD.

发明人： Qiu LAN ,  Changxing ZHOU

IPC分类号： G05D1/00 ,  H02P7/06 ,  B64C39/02

CPC分类号： G05D1/0077 ,  B64C39/024 ,  B64C2201/042 ,  G05D1/0072 ,  H02P7/00 ,  H02P7/063 ,  H02P27/08 ,  H02P27/085 ,  H02P29/032 ,  H02P2201/00 ,  H02P2209/07 ,  H02P2209/11 ,  H02P2209/13

摘要： A method for driving an electric motor includes providing two controllers for driving the electric motor. The two controllers use different control methods to drive the electric motor. The method further includes selecting a first controller of the controllers as a primary controller to drive the electric motor and a second controller of the controllers as a secondary controller, monitoring a control of the electric motor, and switching the control of the electric motor from the primary controller to the secondary controller if an error condition is detected in the control of the electric motor.

公开(公告)号：US20190115863A1

公开(公告)日：2019-04-18

申请号：US16090982

申请日：2017-03-31

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Masamichi NAWA

IPC分类号： H02P27/08 ,  H02M7/5395 ,  H02P21/22

CPC分类号： H02P27/08 ,  G01R19/16542 ,  H02M3/1582 ,  H02M7/48 ,  H02M7/5387 ,  H02M7/53873 ,  H02M7/5395 ,  H02M2001/0064 ,  H02M2007/53876 ,  H02P21/22 ,  H02P27/06 ,  H02P27/12 ,  H02P2209/01 ,  H02P2209/13

摘要： An electrical motor device according to the present invention is provided with a control unit. The control unit is configured to adjust the ratio of transformation by adjusting the ratio between a first time period, in which all upper-arm-side switching elements are on and all lower-arm-side switching element are off, and a second time period, in which all upper-arm-side switching elements are off and all lower-arm-side switching elements are on, and to select one of a plurality of driving modes for each control cycle. The plurality of driving modes include: a dual-driving mode including the first time period and the second time period in one control cycle during electrical motor driving; and an electrical motor driving mode not including the first time period and the second time period in one control cycle during electrical motor driving.

公开(公告)号：US20180248501A1

公开(公告)日：2018-08-30

申请号：US15551610

申请日：2016-04-06

申请人： Mitsuba Corporation

发明人： Takashi Hoshino ,  Tamotsu Iwazaki

IPC分类号： H02P6/15 ,  H02M7/5387 ,  H02P6/17

CPC分类号： H02P6/153 ,  H02M7/53871 ,  H02P6/17 ,  H02P2209/11 ,  H02P2209/13

摘要： In a motor drive apparatus, the brushless motor has a three-phase motor structure, the Hall sensor detects a magnetic flux change signal in an operation of the brushless motor, the control unit obtains a rotor rotation number of the brushless motor (11) based on the magnetic flux change signal, calculates a predetermined electric angle even when the rotor rotation number is changed, and causes the gate driver to output a PWM signal by which a power distribution timing to each phase of the brushless motor is switched at the predetermined electric angle, and the inverter sinusoidally changes and supplies a voltage supply to a stator coil of the brushless motor based on the PWM signal.

公开(公告)号：US09899936B2

公开(公告)日：2018-02-20

申请号：US15098238

申请日：2016-04-13

申请人： LSIS CO., LTD.

发明人： Hak-Jun Lee

IPC分类号： H02M7/5387 ,  H02M7/44 ,  H02M1/12 ,  H02P27/08 ,  H02M1/00 ,  H02M7/483 ,  H02M7/497

CPC分类号： H02M7/44 ,  H02M1/12 ,  H02M7/483 ,  H02M7/497 ,  H02M7/53873 ,  H02M2001/0025 ,  H02M2007/53876 ,  H02P27/08 ,  H02P27/085 ,  H02P2209/13

摘要： In one embodiment, an offset voltage generator includes a first limiter configured to compare a first phase-voltage signal with a maximum limit value and a minimum limit value to output a first limit-voltage signal; a second limiter configured to compare a second phase-voltage signal with the maximum limit value and the minimum limit value to output a second limit-voltage signal; a third limiter configured to compare a third phase-voltage signal with the maximum limit value and the minimum limit value to output a third limit-voltage signal; and a summer configured to add a difference between the first phase-voltage signal and the first limit-voltage signal, a difference between the second phase-voltage signal and the second limit-voltage signal, and a difference between the third phase-voltage signal and the third limit-voltage signal, to output an offset voltage.