公开(公告)号：US09093937B2

公开(公告)日：2015-07-28

申请号：US13940497

申请日：2013-07-12

申请人： Magnetek, Inc.

发明人： John Backman ,  Garry Anderson

IPC分类号： H02P6/16 ,  H02P6/06

CPC分类号： H02P6/16 ,  H02P6/06

摘要： A system for determining the angular position of a synchronous motor includes an encoder with a friction wheel engaging a rotating surface of the motor. The friction wheel is spun by the rotation of the motor, and the encoder generates a signal corresponding to the angular position of the friction wheel. An independent, sensor is provided to generate a pulse once per revolution of the motor. The independent sensor detects the presence of a target on the rotating surface of the motor and generates the pulse when the target is proximate to the sensor. A controller receives the signal corresponding to the angular position of the friction wheel as well as the pulse generated by the independent sensor to determine the angular position of the motor. The controller compensates the angular position of the motor each time the pulse is generated, correcting accumulated position error.

摘要翻译： 用于确定同步电动机的角位置的系统包括具有与电动机的旋转表面接合的摩擦轮的编码器。 摩擦轮通过马达的旋转而旋转，编码器产生对应于摩擦轮的角位置的信号。 提供独立的传感器，用于每转一次电动机产生一次脉冲。 独立传感器检测到目标在马达的旋转表面上的存在，并且当目标靠近传感器时产生脉冲。 控制器接收对应于摩擦轮的角位置的信号以及由独立传感器产生的脉冲，以确定电动机的角位置。 每当产生脉冲时，控制器补偿电机的角度位置，校正累积位置误差。

公开(公告)号：US09059654B2

公开(公告)日：2015-06-16

申请号：US13706944

申请日：2012-12-06

申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.

发明人： Bon Young Gu

IPC分类号： H02P6/00 ,  H02P29/00 ,  H02P6/06 ,  H02P7/28

CPC分类号： H02P29/00 ,  H02P6/06 ,  H02P7/2805

摘要： There is provided a motor driving device including: a speed detection unit detecting a speed of a motor; a comparison unit comparing the speed of the motor detected by the speed detection unit with an external input speed; and a speed control unit outputting the reference speed as a control signal when the speed of the motor is equal to a reference speed or less and outputting a motor control signal generated based on a comparative value of the comparison unit when the speed of the motor exceeds the reference speed.

摘要翻译： 提供一种马达驱动装置，包括：速度检测单元，检测马达的速度; 比较单元，比较由速度检测单元检测到的电机的速度与外部输入速度; 以及速度控制单元，当马达的速度等于或小于基准速度时，输出基准速度作为控制信号，并且当电动机的速度超过时输出基于比较单元的比较值产生的电动机控制信号 参考速度。

公开(公告)号：US09048777B2

公开(公告)日：2015-06-02

申请号：US13740028

申请日：2013-01-11

申请人： Silicon Laboratories Inc.

发明人： Axel Thomsen

IPC分类号： H02P6/06 ,  H02P27/06 ,  H02P7/00 ,  H02M1/00

CPC分类号： H02M3/07 ,  H02H9/046 ,  H02M2001/0006 ,  H02P6/14 ,  H02P6/28 ,  H02P27/06 ,  H02P31/00

摘要： An apparatus includes an integrated circuit (IC) adapted to be powered by a positive supply voltage. The IC includes a charge pump that is adapted to convert the positive supply voltage of the IC to a negative bias voltage. The IC further includes a bidirectional interface circuit. The bidirectional interface circuit includes an amplifier coupled to the negative bias voltage to accommodate a bidirectional input voltage of the IC. The bidirectional interface circuit further includes a comparator coupled to the negative bias voltage to accommodate the bidirectional input voltage of the IC.

摘要翻译： 一种装置包括适于由正电源电压供电的集成电路（IC）。 IC包括电荷泵，其适于将IC的正电源电压转换为负偏置电压。 IC还包括双向接口电路。 双向接口电路包括耦合到负偏压的放大器以适应IC的双向输入电压。 双向接口电路还包括耦合到负偏置电压以适应IC的双向输入电压的比较器。

公开(公告)号：US08963472B2

公开(公告)日：2015-02-24

申请号：US13847546

申请日：2013-03-20

申请人： Texas Instruments Incorporated

发明人： Daijiro Otani ,  Nakoyuki Tsuruoka ,  Masaki Yamashita

IPC分类号： H02P6/06

CPC分类号： H02P8/14 ,  H02P6/085 ,  H02P6/28

摘要： An apparatus, comprises three driver FETs coupled at their sources; note-driver circuit; a first sense FET coupled to the sources of the three driver FETs; a current mirror having the first sense FET and a mirror FET; wherein the first sense FET is coupled to the mirror FET; a first transconductance amplifier coupled to the first sense FET; a second amplifier coupled to the current mirror, and an output of the first transconductance amplifier is an input to the second amplifier.

摘要翻译： 一种装置，包括在其源处耦合的三个驱动器FET; 笔记本电路; 耦合到三个驱动器FET的源极的第一感测FET; 具有第一感测FET和反射FET的电流镜; 其中所述第一感测FET耦合到所述镜面FET; 耦合到所述第一感测FET的第一跨导放大器; 耦合到电流镜的第二放大器，第一跨导放大器的输出是第二放大器的输入。

公开(公告)号：US08933657B2

公开(公告)日：2015-01-13

申请号：US13182270

申请日：2011-07-13

申请人： Xiaoyan Wang ,  Yateendra Deshpande

发明人： Xiaoyan Wang ,  Yateendra Deshpande

IPC分类号： H02P6/06 ,  H02P6/20 ,  H02P6/18

CPC分类号： H02P6/20 ,  H02P6/188

摘要： A method for driving a brushless direct current (DC) motor is provided. The brushless DC motor has a first phase that is coupled between a first terminal and a common node, a second phase that is coupled between a second terminal and the common node, and a third phase that is coupled between a third terminal and the common node. The first and second phases are coupled to a first supply rail and a second supply rail, respectively, such that the brushless DC motor is in a first commutation state. The first phase is then decoupled from the first supply rail so as to allow first terminal to float during a window period. A first voltage difference between the first terminal and the second terminal is compared to a second voltage difference between the third terminal and the second terminal during the window period, and the brushless DC motor is commuted to a second commutation state if the first voltage difference is approximately equal to the second voltage difference.

摘要翻译： 提供一种用于驱动无刷直流（DC）电动机的方法。 无刷直流电动机具有耦合在第一端子和公共节点之间的第一相位，耦合在第二端子和公共节点之间的第二相位，以及耦合在第三端子和公共节点之间的第三相位 。 第一和第二相分别耦合到第一电源轨和第二电源轨，使得无刷直流电动机处于第一换向状态。 然后，第一阶段与第一供电轨道解耦，以便允许第一端子在窗口期间浮动。 第一端子和第二端子之间的第一电压差在窗口期间与第三端子和第二端子之间的第二电压差进行比较，并且如果第一电压差是第一电压差，则将无刷直流电动机换向第二换向状态 大致等于第二电压差。

公开(公告)号：US20140368142A1

公开(公告)日：2014-12-18

申请号：US14293402

申请日：2014-06-02

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kenji UCHIDA

IPC分类号： H02P6/06

CPC分类号： H02P6/06 ,  B60K6/445 ,  B60L3/003 ,  B60L3/0061 ,  B60L7/18 ,  B60L11/123 ,  B60L11/14 ,  B60L15/20 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/441 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2240/527 ,  B60L2240/529 ,  B60W10/08 ,  B60W10/115 ,  B60W20/50 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7258 ,  Y02T10/7275

摘要： A vehicle including an AC rotating electric machine, an inverter, and an electronic control unit is provided. When an overcurrent abnormality occurs, i.e., phase current of a motor-generator exceeds a permissible value, in a high rotational speed region, the electronic control unit performs control (upshift control) for shifting up an automatic transmission provided between the motor-generator and driving wheels, or control (neutral control) for bringing the transmission into a released state, so as to reduce the rotational speed of the motor-generator. If phase current is detected even when an all-gate turn-off command is generated to the inverter while the rotational speed of the motor-generator is reduced to be within a low rotational speed region under the upshift control or neutral control, the electronic control unit determines that a short-circuit fault occurs in the inverter.

摘要翻译： 提供一种包括交流旋转电机，逆变器和电子控制单元的车辆。 当发生过电流异常时，即电动发电机的相电流超过允许值时，在高转速区域中，电子控制单元进行控制（升档控制），用于使电动发电机和 驱动轮或用于使变速器处于释放状态的控制（空档控制），以便降低电动发电机的转速。 即使当在升档控制或空档控制下，当电动发电机的转速降低到低转速区域内时，即使在向逆变器产生全闸关闭指令时也检测到相电流，电子控制 单元确定变频器发生短路故障。

公开(公告)号：US08810171B2

公开(公告)日：2014-08-19

申请号：US13291643

申请日：2011-11-08

申请人： Sari Maekawa

发明人： Sari Maekawa

IPC分类号： H02P6/06 ,  H02P6/16 ,  H02P6/00

CPC分类号： H02P6/002 ,  H02P6/16 ,  H02P6/28

摘要： A motor controller is disclosed. The motor controller includes a current detector that is provided in a direct current side of a power converter and that detects direct current information. A determiner determines a size of an offset voltage contained in the detected current information. The determiner calculates the offset voltage by canceling a positive current component by a negative current component both pertaining to the same one phase and contained in the detected direct current information. A modifier modifies the detected direct current information based on the calculated offset voltage.

摘要翻译： 公开了一种电动机控制器。 马达控制器包括设置在功率转换器的直流侧并检测直流信息的电流检测器。 确定器确定检测到的当前信息中包含的偏移电压的大小。 确定器通过消除正电流分量来计算偏移电压，该负电流分量均属于相同的一相，并且包含在检测到的直流信息中。 修改器基于所计算的偏移电压来修改检测到的直流信息。

公开(公告)号：US08729845B2

公开(公告)日：2014-05-20

申请号：US13406032

申请日：2012-02-27

申请人： Stefan Künzel ,  Nico Spieckermann

发明人： Stefan Künzel ,  Nico Spieckermann

IPC分类号： H02P6/06 ,  H02P6/08

CPC分类号： H02P23/14 ,  H02P6/10 ,  H02P6/18 ,  H02P6/20

摘要： A method and device for controlling an electric motor, in particular a machine tool drive, wherein during a sensorless open-loop control mode of operation of the electric motor the speed and the torque are determined from the motor current and the motor voltage, and the moment of inertia of the electric motor torque are determined from the determined motor current and the determined motor voltage, wherefrom then a control torque is determined, which is then associated with an open-loop torque control value and supplied as the torque setpoint value to a control element for setting the motor current and/or the motor voltage in the open-loop mode of operation. As long as the speed is below a minimum speed, the control element receives as input variable a control or pilot control torque generated from a predefined moment of inertia for a sensorless closed-loop control mode of operation of the electric motor.

摘要翻译： 一种用于控制电动机，特别是机床驱动器的方法和装置，其中在电动机的无传感器开环控制操作模式期间，速度和转矩由电动机电流和电动机电压确定，并且 根据确定的电动机电流和确定的电动机电压确定电动机转矩的惯性矩，然后确定控制转矩，然后控制转矩与开环转矩控制值相关联，并作为转矩设定值提供给 用于在开环操作模式下设置电动机电流和/或电动机电压的控制元件。 只要速度低于最小速度，控制元件接收作为输入变量的用于电动机的无传感器闭环控制操作模式的从预定转动惯量产生的控制或先导控制扭矩。

公开(公告)号：US08674637B2

公开(公告)日：2014-03-18

申请号：US13497008

申请日：2010-05-19

申请人： Yusuke Kamijo

发明人： Yusuke Kamijo

IPC分类号： H02P6/06

CPC分类号： B60L11/005 ,  B60L3/003 ,  B60L3/0046 ,  B60L3/04 ,  B60L3/12 ,  B60L7/06 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1859 ,  B60L11/187 ,  B60L11/1872 ,  B60L15/20 ,  B60L15/2009 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/36 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/52 ,  B60L2240/529 ,  B60L2240/545 ,  H02M1/32 ,  H02M7/219 ,  H02M2001/007 ,  H02P29/02 ,  H02P29/68 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275

摘要： A vehicle includes a power storage device, a motor generator, a converter for stepping up an output voltage from the power storage device, an inverter for driving the motor generator, and an ECU. The inverter includes switching elements. The switching elements have a characteristic that the withstand voltage of the switching elements decreases as the temperature of the inverter decreases. The ECU sets the stepped-up voltage, based on a temperature characteristic of the power storage device and a temperature characteristic of the inverter, so that the stepped-up voltage is increased within a range in which the stepped-up voltage does not exceed the withstand voltage. In this way, at low temperatures, deterioration of the power performance can be suppressed while the switching elements are protected.

摘要翻译： 车辆包括蓄电装置，电动发电机，用于升压蓄电装置的输出电压的转换器，用于驱动电动发电机的逆变器和ECU。 逆变器包括开关元件。 开关元件具有随着逆变器的温度下降而开关元件的耐受电压降低的特性。 ECU根据蓄电装置的温度特性和逆变器的温度特性来设定升压电压，使升压电压在升压电压不超过的范围内增加 耐电压 以这种方式，在低温下，可以抑制开关元件被保护时的功率性能的劣化。

公开(公告)号：US20130154540A1

公开(公告)日：2013-06-20

申请号：US13404808

申请日：2012-02-24

申请人： Bon Young KOO

发明人： Bon Young KOO

IPC分类号： H02P6/06

CPC分类号： H02P6/06 ,  H02P6/17

摘要： There are provided a motor controlling circuit, a motor driving device, and a motor controlling method. The motor controlling circuit includes: a frequency detecting unit detecting a frequency of an internal clock signal of a motor driving circuit; a sampling unit sampling an input pulse width modulation (PWM) signal using the frequency of the internal clock signal; and a calculating unit sensing a change in a speed of the internal clock signal from a sampling result of the sampling unit and calculating a revolution per minute (RPM) of a motor from the sensed change in the speed.

摘要翻译： 提供了电动机控制电路，电动机驱动装置和电动机控制方法。 电动机控制电路包括：频率检测单元，检测电动机驱动电路的内部时钟信号的频率; 采样单元使用内部时钟信号的频率对输入脉宽调制（PWM）信号进行采样; 以及计算单元，根据所述采样单元的采样结果感测所述内部时钟信号的速度的变化，并根据所感测的速度变化计算电动机的每分钟转数（RPM）。