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    • 2. 发明申请
    • CONTROL DEVICE FOR STEPPING MOTOR AND CONTROL METHOD FOR STEPPING MOTOR
    • 用于步进电机的控制装置和用于步进电动机的控制方法
    • US20150042258A1
    • 2015-02-12
    • US14301579
    • 2014-06-11
    • MINEBEA CO., LTD.
    • Kazuo TAKADATakayuki MATSUIHaruka MIYAJI
    • H02P8/24H02P8/10H02P8/38
    • H02P8/24H02P8/10H02P8/28H02P8/38
    • There is provided a control device for a stepping motor, configured to apply an excitation current to multiple coils to rotate a rotor. The control device includes a drive unit configured to apply a drive voltage to the coils, and a control unit configured to control the drive voltage applied by the drive unit, wherein the control unit includes a stop control unit configured to perform, during a hold period of a stop period of the stepping motor, a stop control which gradually decreases a magnitude of the excitation current flowing in the coils such that the rotor moves to a predetermined stop position, and wherein the stop control unit is configured to perform the stop control such that a variation amount of the excitation current per unit time becomes a predetermined threshold value for the stop period or less.
    • 提供了一种用于步进电动机的控制装置,其被配置为向多个线圈施加激励电流以使转子旋转。 所述控制装置包括被配置为向所述线圈施加驱动电压的驱动单元和被配置为控制由所述驱动单元施加的驱动电压的控制单元,其中所述控制单元包括停止控制单元,所述停止控制单元被配置为在保持期间 步骤电动机的停止期间,使所述线圈中流过的励磁电流的大小逐渐减小以使得所述转子移动到规定的停止位置的停止控制,所述停止控制部被配置为进行所述停止控制, 每单位时间的激励电流的变化量成为停止期间以下的预定阈值。
    • 3. 发明申请
    • MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
    • 电机控制装置和电机控制方法
    • US20140203748A1
    • 2014-07-24
    • US14088641
    • 2013-11-25
    • MINEBEA CO., LTD.
    • Kazuo TAKADATakayuki MATSUIScott JACOBS
    • H02P29/00
    • H02P29/62H02P8/10
    • There is provided a motor control device for an actuator having a motor, including a measuring unit configured to measure a temperature of the actuator or a temperature corresponding to the temperature of the actuator, a determining unit configured to determine whether the temperature measured by the measuring unit is lower than a preset temperature, and a boost control unit configured to perform boost control at activation of the motor to increase drive power supplied to the motor if the determining unit determines that the temperature measured by the measuring unit is lower than the preset temperature. The boost control unit is configured to perform the boost control such that, only within a boost period after starting activation of the motor, drive power larger than that supplied to the motor during steady driving after the boost period is supplied to the motor.
    • 提供了一种用于具有电动机的致动器的电动机控制装置,包括:测量单元,被配置为测量致动器的温度或与致动器的温度相对应的温度;确定单元,被配置为确定由测量值测量的温度 单元低于预设温度,以及升压控制单元,其被配置为如果所述确定单元确定由所述测量单元测量的温度低于所述预设温度,则在启动所述电动机时执行升压控制以增加供应给所述电动机的驱动功率 。 升压控制单元被配置为执行升压控制,使得仅在电动机起动之后的升压时段内,在将升压期间提供给电动机之后,驱动功率大于在稳定驱动期间提供给电动机的功率。
    • 4. 发明申请
    • MOTOR CONTROL DEVICE AND OUT-OF-STEP DETECTING METHOD OF STEPPING MOTOR
    • 电动机控制装置和步进电机的不合格检测方法
    • US20130229139A1
    • 2013-09-05
    • US13771500
    • 2013-02-20
    • MINEBEA CO., LTD.
    • Kazuo TAKADATakayuki MATSUIScott JACOBS
    • H02P8/38
    • H02P8/38
    • There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.
    • 提供了一种电动机控制装置,其被配置为控制用于驱动具有多个相线圈的步进电动机的每相线圈的通电状态。 所述电动机控制装置包括:测量单元,被配置为测量在所述多个相位线圈中在停止通电的相位的线圈处感应的反电动势电压;获取单元,被配置为获取关于所述步进电动机的温度的温度信息, 温度对应于步进电机的温度,以及检测单元,其被配置为基于由测量单元获得的结果和由获取单元获取的温度信息来检测步进电机是否失步。
    • 5. 发明申请
    • MOTOR CONTROL DEVICE AND METHOD FOR DETECTING OUT-OF-STEP
    • 用于检测不合格的电动机控制装置和方法
    • US20150214878A1
    • 2015-07-30
    • US14546342
    • 2014-11-18
    • MINEBEA CO., LTD.
    • Kazuo TAKADATakayuki MATSUI
    • H02P8/38
    • H02P8/38
    • There is provided a motor control device for controlling a stepping motor having at least two coils. The motor control device includes a controller applies a pulse voltage being subjected to pulse width modulation to each of the coils and provides a stop period to a target coil being subjected to switching of a direction of the coil current, during which the application of the pulse voltage to the target coil is temporarily stopped. The controller also performs a control to set on-duty of the pulse voltage applied to all of the coils except the target coil to be either 100% or 0% during the stop period. An out-of step of the stepping motor is detected when a back electromotive voltage induced in the target coil during the stop period satisfies a predetermined out-of-step determination criterion.
    • 提供了一种用于控制具有至少两个线圈的步进电动机的电动机控制装置。 电动机控制装置包括:控制器对每个线圈施加经受脉冲宽度调制的脉冲电压,并且向正被切换线圈电流方向的目标线圈提供停止时段,在此期间施加脉冲 临时停止对目标线圈的电压。 控制器还执行控制,以在停止期间将施加到除目标线圈之外的所有线圈的脉冲电压的占空比设置为100%或0%。 当在停止时段期间在目标线圈中感应的反电动势电压满足预定的失步判定标准时,检测步进电动机的失步。
    • 6. 发明申请
    • MOTOR CONTROL DEVICE AND CONTROL METHOD OF STEPPING MOTOR
    • 电动机控制装置及步进电机的控制方法
    • US20140176039A1
    • 2014-06-26
    • US14088563
    • 2013-11-25
    • MINEBEA CO., LTD.
    • Kazuo TAKADATakayuki MATSUIScott JACOBSHidetoshi HIJIKATA
    • H02P8/38
    • H02P8/38
    • There is provided a motor control device controlling an energizing state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a detecting unit configured to detect whether the stepping motor is out of step, and a reverse rotating unit configured, when the detecting unit detects that the stepping motor is out of step, to rotate the stepping motor in a second rotation direction reverse to a first rotation direction, which is a rotation direction of the stepping motor before detecting out-of-step, by a number of steps with which a stress received by the stepping motor is alleviated, before the stepping motor spontaneously rotates in the second direction.
    • 提供一种电动机控制装置,其控制用于驱动具有多个相线圈的步进电动机的各相线圈的通电状态。 电动机控制装置包括:检测单元,其被配置为检测步进电机是否失步;以及反转旋转单元,当所述检测单元检测到所述步进电机不合格时,使所述步进电动机以第二旋转方式旋转 在步进电动机在步进电动机自动旋转之前,步进电机在检测失步之前的旋转方向与步进电机接收的应力减少的步数相反的第一旋转方向 第二个方向