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公开(公告)号：US5541834A
公开(公告)日：1996-07-30
申请号：US321846
申请日：1994-10-14
CPC分类号： H05K13/0413 , Y10T29/53174 , Y10T29/53191
摘要： A component mounting apparatus having a suction nozzle movable with a component held attracted thereto to mount the component in a mounting position on a board comprises a CCD camera for taking images of the component and the mounting position obliquely from above when the suction nozzle has been brought to above the mounting position with the component held attracted thereto, an image processing circuit for calculating the deviation of the position of the component relative to the mounting position based on image signals from the camera, and a control circuit for correcting the position of the component by moving the suction nozzle in a horizontal plane in accordance with the calculated deviation.
摘要翻译： 一种具有吸引喷嘴的部件安装装置，其具有被吸引到其上的部件保持，以将部件安装在板上的安装位置，包括CCD相机，用于当吸嘴被带入时从上方倾斜地拍摄部件和安装位置的图像 在与被吸附的部件保持在安装位置之上的图像处理电路，用于基于来自照相机的图像信号计算部件相对于安装位置的位置的偏差的图像处理电路，以及用于校正部件的位置的控制电路 通过根据计算出的偏差在水平面移动吸嘴。
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公开(公告)号：US5285946A
公开(公告)日：1994-02-15
申请号：US958636
申请日：1992-10-09
IPC分类号： H05K13/04 , H01L21/603
CPC分类号： H05K13/0408 , H05K13/0413
摘要： An apparatus for mounting electronic components on the surface of printed boards by a suction head assembly 4 coupled to a head lift mechanism comprises a force sensor 6 for measuring the pressure exerted on the component by a mounting operation, and a microcomputer 1 for preparing a control signal in accordance with the deviation of the value measured by the force sensor from a desired value of pressure on the component. The rotation of a head lifting motor 51 is controlled based on the control signal.
摘要翻译： 一种用于通过联接到头部提升机构的吸头组件4将电子部件安装在印刷电路板表面上的装置包括用于通过安装操作测量施加在部件上的压力的力传感器6和用于准备控制的微型计算机1 根据由力传感器测量的值与组件上所需的压力值的偏差来产生信号。 基于控制信号控制磁头提升电动机51的旋转。
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3.发明授权External force measuring system and component mounting apparatus equipped with same 失效外力测量系统和配备其的部件安装设备
公开(公告)号：US5523642A
公开(公告)日：1996-06-04
申请号：US426478
申请日：1995-04-20
申请人： Masahiko Hashimoto , Yoshio Tomigashi , Yoshitoshi Morita , Michio Kunimitsu , Akira Sakaguchi , Tomomi Yamaguchi
发明人： Masahiko Hashimoto , Yoshio Tomigashi , Yoshitoshi Morita , Michio Kunimitsu , Akira Sakaguchi , Tomomi Yamaguchi
IPC分类号： G01L1/16 , G01L5/00 , H05K13/08 , H01L41/113
CPC分类号： G01L1/16 , G01L5/0076 , H05K13/08
摘要： In an external force measuring system comprising a piezoelectric element 61or producing a charge when acted on by an external force, and a charge amplifier 7 chargeable with a variation in the charge produced by the piezoelectric element to output a voltage signal, the charge amplifier 7 comprises a feedback loop having an on-off controllable switch 8 connected in parallel therewith. The switch 8 is on-off controlled by a comparator 81 for comparing the output voltage with a reference value and is closed while no external force acts on the element.
摘要翻译： 在包括用于通过外力作用时产生电荷的压电元件61的外力测量系统和可由压电元件产生的电荷变化来充电以输出电压信号的电荷放大器7中，电荷放大器7 包括具有与其并联连接的开关可控开关8的反馈回路。 开关8由比较器81控制，用于将输出电压与参考值进行比较，并且在外部力不作用于元件的情况下闭合。
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公开(公告)号：US08269436B2
公开(公告)日：2012-09-18
申请号：US12407289
申请日：2009-03-19
IPC分类号： H02P21/00
CPC分类号： H02P21/0089 , H02P21/18 , H02P21/26 , H02P29/026
摘要： To prevent a step-out of a permanent magnet synchronous type motor (1), a motor control device (3a) is provided to include a flux control unit (16) for deriving an excitation current command value (iγ*) according to the rotation speed (ωe) of the motor, and a voltage shortage determination unit (30) for determining whether or not the supply voltage to the motor is running short based on the excitation current command value (iγ*). When a negative excitation current command value (iγ*) is smaller than a negative determination threshold value, the motor control device determines that the supply voltage is running short and prohibits an increase of the rotation speed or decreases the rotation speed.
摘要翻译： 为了防止永磁同步型电动机（1）的退出，提供电动机控制装置（3a），其包括用于根据旋转导出励磁电流指令值（iγ*）的磁通控制单元（16） 电动机的速度（ωe）以及用于根据励磁电流指令值（iγ*）判定对电动机的供给电压是否短路的电压不足判定部（30）。 当负激励电流指令值（iγ*）小于否定判定阈值时，电动机控制装置判定供给电压短路，并且禁止转速的增加或转速降低。
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公开(公告)号：US07595604B2
公开(公告)日：2009-09-29
申请号：US11819067
申请日：2007-06-25
申请人： Yoshio Tomigashi
发明人： Yoshio Tomigashi
IPC分类号： H02P21/14
摘要： Let the rotating axis whose direction coincides with the direction of the current vector that achieves maximum torque control be called the qm-axis, and the rotating axis perpendicular to the qm-axis be called the dm-axis. A motor control device switches its operation between low-speed sensorless control and high-speed sensorless control according to the rotation speed of the rotor. In low-speed sensorless control, the magnetic salient pole of the motor is exploited, and the d-q axes are estimated by, for example, injection of a high-frequency rotating voltage. In high-speed sensorless control, the dm-qm axes are estimated based on, for example, the induction voltage produced by the rotation of the rotor. During high-speed sensorless control, the γ(dm)-axis current is kept at zero irrespective of the δ(qm)-axis current.
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公开(公告)号：US20070132424A1
公开(公告)日：2007-06-14
申请号：US11633416
申请日：2006-12-05
申请人： Hiroshi Takao , Yoshio Tomigashi
发明人： Hiroshi Takao , Yoshio Tomigashi
IPC分类号： H02P21/00
CPC分类号： H02P21/14 , H02P21/24 , H02P2203/11
摘要： In a motor driving control device, a high-frequency alternating voltage or rotation voltage (having a frequency of ωh) is applied to a motor so that magnetic saturation occurs in the motor, thereby extracting, from a γ-axis current, a high-frequency second-harmonic component (a frequency component of 2×ωh) that is obtained by attenuating at least a direct-current component of the γ-axis current. The polarity checker detects the polarity of the magnetic pole of the rotor based on the difference, caused by magnetic saturation, between the positive and negative amplitudes of the high-frequency second-harmonic component.
摘要翻译： 在电动机驱动控制装置中，向电动机施加高频交流电压或旋转电压（具有ωω小时的频率），使得电动机发生磁饱和，从而从电动机 伽马轴电流，通过衰减至少一个伽马轴电流的直流分量而获得的高频二次谐波分量（2xomega 的频率分量）。 极性检查器根据高频二次谐波分量的正和负振幅之间由磁饱和引起的差异来检测转子的磁极的极性。
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公开(公告)号：US07504797B2
公开(公告)日：2009-03-17
申请号：US11508899
申请日：2006-08-24
申请人： Yoshio Tomigashi , Hajime Hida
发明人： Yoshio Tomigashi , Hajime Hida
IPC分类号： H02P23/00
CPC分类号： H02P21/18 , H02P2203/05 , H02P2203/09 , H02P2203/11 , H02P2207/05
摘要： A motor control device includes an estimator for estimating a rotor position of a motor having a salient pole by using a value corresponding to a q-axis inductance of the motor as an operation parameter where an estimated axes for the control corresponding to d-q axes are γ-δ axes, and a controller for controlling the motor based on the estimated rotor position. The estimator generates a deviation between a d-axis and a γ-axis by performing the estimation of the rotor position based on a value between a real q-axis inductance and a real d-axis inductance of the motor adopted as the operation parameter. The controller controls the motor so that a γ-axis component of a motor current supplied to the motor is maintained to be a predetermined value of zero or close to zero regardless of a value of a δ-axis component of the motor current.
摘要翻译： 电动机控制装置包括估计器，用于通过使用与电动机的q轴电感相对应的值来估计具有突极的电动机的转子位置作为操作参数，其中对应于dq轴的控制的估计轴为伽马 以及用于基于估计的转子位置来控制电动机的控制器。 估计器通过基于作为操作参数的电动机的实际q轴电感和实际d轴电感之间的值执行转子位置的估计来产生d轴和γ轴之间的偏差。 控制器控制电动机，使得提供给电动机的电动机电流的γ轴分量保持为零或接近于零的预定值，而与电动机电流的δ轴分量的值无关。
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公开(公告)号：US07482777B2
公开(公告)日：2009-01-27
申请号：US12032482
申请日：2008-02-15
申请人： Yoshio Tomigashi
发明人： Yoshio Tomigashi
IPC分类号： H02P23/00
摘要： The motor control device includes a current detecting portion for detecting a phase current that flows in an armature winding of a stator of a three-phase motor based on current that flows between an inverter for driving the motor and a DC power supply. The motor control device performs a position sensorless vector control for the motor based on a control current that is obtained by a three-phase to two-phase conversion of the phase current based on an estimated rotor position of the motor. The motor control device farther includes a superposing portion for superposing a superposed voltage having a predetermined frequency on a drive voltage for driving the motor and an estimating portion for deriving the estimated rotor position based on the superposed current that is extracted from the control current and flows in the motor in accordance with the superposed voltage. A voltage vector locus of the superposed voltage from the superposing portion presents an ellipse.
摘要翻译： 电动机控制装置包括电流检测部分，用于基于在用于驱动电动机的逆变器和直流电源之间流动的电流来检测在三相电动机的定子的电枢绕组中流动的相电流。 电动机控制装置基于通过基于电动机的估计转子位置的相电流的三相到二相转换获得的控制电流来执行电动机的无位置传感器矢量控制。 电动机控制装置还包括叠加部分，用于将具有预定频率的叠加电压叠加在用于驱动电动机的驱动电压上，以及估计部分，用于基于从控制电流提取的叠加电流导出估计的转子位置并流动 在电机中按照叠加电压。 来自叠加部分的叠加电压的电压矢量轨迹呈现椭圆形。
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公开(公告)号：US07375482B2
公开(公告)日：2008-05-20
申请号：US11523002
申请日：2006-09-19
摘要： An object is to provide a driving device capable of smoothly shifting from a starting state to a sensor-less vector control, in a case where the device drives a motor by the sensor-less vector control, and the device includes a voltage detecting circuit which detects an induced electromotive voltage of the motor. A control circuit starts the motor by rectangular wave control. A magnetic pole position of a rotor is detected based on an induced electromotive voltage of one remaining phase of the motor detected by the voltage detecting circuit. The control circuit controls a main inverter circuit based on the detected magnetic pole position, and accelerates the motor by the rectangular wave control. In a case where a predetermined shift revolution speed is reached, the control circuit shifts to vector control by the sensor-less in which the magnetic pole position detected during the rectangular wave control is used as an initial value.
摘要翻译： 本发明的目的是提供一种驱动装置，其能够在通过无传感器矢量控制来驱动电动机的情况下，能够从启动状态平滑地变换为无传感器矢量控制，并且该装置包括：电压检测电路， 检测电动机的感应电动势。 控制电路通过矩形波控制启动电机。 基于由电压检测电路检测到的电机的一个剩余相的感应电动势来检测转子的磁极位置。 控制电路基于检测到的磁极位置控制主逆变器电路，并通过矩形波控制来加速电动机。 在达到预定的换档转速的情况下，控制电路通过使用在矩形波控制期间检测到的磁极位置作为初始值的无传感器转换到矢量控制。
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公开(公告)号：US20080061727A1
公开(公告)日：2008-03-13
申请号：US11853625
申请日：2007-09-11
申请人： Yoshio Tomigashi
发明人： Yoshio Tomigashi
CPC分类号： H02P21/14
摘要： A motor control device includes a current detecting portion that detects current flowing between an inverter for driving a three-phase motor and a DC power supply for supplying DC voltage to the inverter, a current estimator that estimates a current vector of the motor on a rotating coordinate that rotates along with rotation of a rotor of the motor. The motor control device detects motor current flowing in the motor by using one of a detecting result of the current detecting portion and an estimation result of the current estimator, so as to control the motor via the inverter based on the detected motor current. The current estimator estimates the current vector based on the motor current detected in the past and a specified voltage value, for example.
摘要翻译： 一种电动机控制装置，包括电流检测部，该电流检测部检测用于驱动三相电动机的逆变器和用于向逆变器供给直流电压的直流电源之间流动的电流;电流估计器，其对旋转的电动机的电流矢量进行推定 随着电动机的转子的旋转而旋转的坐标。 电动机控制装置通过使用电流检测部的检测结果和电流推定器的推定结果中的一方来检测电动机中流过的电动机电流，从而基于检测到的电动机电流经由逆变器来控制电动机。 电流估计器例如基于过去检测到的电动机电流和指定的电压值来估计电流矢量。
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