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公开(公告)号：US20050169018A1
公开(公告)日：2005-08-04
申请号：US10514914
申请日：2003-03-17
申请人： Akira Hatai , Mahito Unno , Masakatsu Daijou , Kiyoshi Eguchi
发明人： Akira Hatai , Mahito Unno , Masakatsu Daijou , Kiyoshi Eguchi
IPC分类号： G01R31/00 , G05F1/10 , H02M1/14 , H02M5/45 , H02M7/5387
CPC分类号： H02M7/53871 , G01R31/028 , Y10T307/625
摘要： In the inverter device of the invention, when a power source connected to an electrolytic capacitor 5 is interrupted, a switching control circuit 6a controls switching elements of an inverter main circuit 7a to operate to supply a current to a load, thereby discharging charges of the electrolytic capacitor 5, and an electrolytic capacitor electrostatic capacitance calculator 10a calculates the electrostatic capacitance of the electrolytic capacitor, on the basis of: a discharged charge amount which is obtained from an outflow current Ic from the electrolytic capacitor 5, and a discharge time; and a discharge voltage ΔV which is a voltage drop from beginning of discharging of the electrolytic capacitor 5.
摘要翻译： 在本发明的逆变器装置中，当连接到电解电容器5的电源被中断时，开关控制电路6a控制逆变器主电路7a的开关元件以工作以向负载提供电流，从而放电 的电解电容器5，电解电容器静电电容计算器10a根据从电解电容器5的流出电流Ic获得的放电电荷量和放电 时间; 以及从电解电容器5的放电开始起的电压降的放电电压DeltaV。
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公开(公告)号：US5197363A
公开(公告)日：1993-03-30
申请号：US537737
申请日：1990-06-14
申请人： Hiroaki Okachi , Takahiro Hayashida , Mahito Unno
发明人： Hiroaki Okachi , Takahiro Hayashida , Mahito Unno
CPC分类号： B23Q39/048 , G05B19/182 , G05B2219/50235 , Y10T82/2502 , Y10T82/2524
摘要： The invention relates to a spindle drive controller for a machine tool such as a numerically controlled lathe of the two spindle type. According to the invention, a drive control unit is enabled to separately control the spindles, or jointly control both spindles simultaneously. A switchover unit controls whether one or both spindles is controlled, and changeover units are provided for selectively feeding back speed and position feedback signals from one or the other of the respective spindles, depending on which spindle is being driven at that time.
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3.发明授权
公开(公告)号：US5459386A
公开(公告)日：1995-10-17
申请号：US15521
申请日：1993-02-09
申请人： Hiroaki Okachi , Mahito Unno
发明人： Hiroaki Okachi , Mahito Unno
CPC分类号： H02P21/09
摘要： A motor drive control apparatus for controlling an induction motor based on a primary current including a magnetic flux current and a torque current includes a circuit for determining air gap magnetic flux according to a first magnetic flux characteristic curve and a torque current limiting value according to a first torque current characteristic curve in a first speed range; and for determining the air gap magnetic flux according to a second magnetic flux characteristic curve and the torque current limiting value according to a second torque current characteristic curve in a second speed range. A motor driving circuit causes the magnetic flux current corresponding to the air gap magnetic flux and the torque current corresponding to the torque current limiting value to flow in the motor. The first magnetic flux characteristic curve, the first torque current characteristic curve, the second magnetic flux characteristic curve and the second torque current characteristic curve are defined with respect to the operating speed of the motor. The first speed range is defined by a minimum speed and a switching speed of the motor while the second speed range is defined by the switching speed and a higher speed of the motor, often the maximum speed. The circuit can include a memory for storing data corresponding to each of the first magnetic flux characteristic curve, the first torque current characteristic curve, the second magnetic flux characteristic curve and the second torque current characteristic curve.
摘要翻译： 一种用于基于包括磁通电流和转矩电流的初级电流来控制感应电动机的电动机驱动控制装置，包括根据第一磁通特性曲线和根据第一磁通特性曲线确定气流磁通量的转矩电流限制值的电路 第一转速范围内的第一转矩电流特性曲线; 并且根据第二磁通特性曲线和根据第二转速范围内的第二转矩电流特性曲线的转矩电流限制值来确定气隙磁通量。 马达驱动电路使得与气隙磁通相对应的磁通电流和与转矩电流限制值相对应的转矩电流在电动机中流动。 相对于电动机的运转速度来定义第一磁通特性曲线，第一转矩电流特性曲线，第二磁通特性曲线和第二转矩电流特性曲线。 第一速度范围由电机的最小速度和开关速度定义，而第二速度范围由电机的切换速度和较高速度定义，通常为最大速度。 电路可以包括用于存储对应于第一磁通特性曲线，第一转矩电流特性曲线，第二磁通特性曲线和第二转矩电流特性曲线中的每一个的数据的存储器。
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公开(公告)号：US07432616B2
公开(公告)日：2008-10-07
申请号：US10514914
申请日：2003-03-17
申请人： Akira Hatai , Mahito Unno , Masakatsu Daijou , Kiyoshi Eguchi
发明人： Akira Hatai , Mahito Unno , Masakatsu Daijou , Kiyoshi Eguchi
CPC分类号： H02M7/53871 , G01R31/028 , Y10T307/625
摘要： In the inverter device of the invention, when a power source connected to an electrolytic capacitor 5 is interrupted, a switching control circuit 6a controls switching elements of an inverter main circuit 7a to operate to supply a current to a load, thereby discharging charges of the electrolytic capacitor 5, and an electrolytic capacitor electrostatic capacitance calculator 10a calculates the electrostatic capacitance of the electrolytic capacitor, on the basis of: a discharged charge amount which is obtained from an outflow current Ic from the electrolytic capacitor 5, and a discharge time; and a discharge voltage ΔV which is a voltage drop from beginning of discharging of the electrolytic capacitor 5.
摘要翻译： 在本发明的逆变器装置中，当连接到电解电容器5的电源被中断时，开关控制电路6a控制逆变器主电路7a的开关元件以工作以向负载提供电流，从而放电 的电解电容器5，电解电容器静电电容计算器10a根据从电解电容器5的流出电流Ic获得的放电电荷量和放电 时间; 以及从电解电容器5的放电开始起的电压降的放电电压DeltaV。
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公开(公告)号：US5260631A
公开(公告)日：1993-11-09
申请号：US537719
申请日：1990-06-14
申请人： Takahiro Hayashida , Hiroaki Okachi , Mahito Unno
发明人： Takahiro Hayashida , Hiroaki Okachi , Mahito Unno
CPC分类号： G01P3/4802 , G05B19/232 , H02P23/16 , G05B2219/37159 , G05B2219/37183 , G05B2219/37296 , G05B2219/37313 , G05B2219/43194 , G05B2219/45136 , G05B2219/45141 , G05B2219/49273 , G05B2219/50387
摘要： The invention relates to a spindle speed/position control system for use in a numerically controlled machine tool such as a lathe. To improve the measurement of spindle speed and position, detected elements are attached directly to the rotatable spindle. A waveform shaping circuit takes the outputs of speed and position detecting sensors, and outputs a variety of sinusoidal and pulse signals. The sinusoidally varying signals are employed in speed detection while the pulse signals are used for position detection and control.
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公开(公告)号：US4814681A
公开(公告)日：1989-03-21
申请号：US878156
申请日：1986-06-25
申请人： Mahito Unno , Yuji Yokoi
发明人： Mahito Unno , Yuji Yokoi
CPC分类号： B23Q15/26 , G05B2219/42215 , G05B2219/43194
摘要： A rotary shaft position control apparatus in which the rotary shaft is stopped in one revolution. After detection that a flux emitter on the shaft has passed a position detector, the shaft speed is set to a first speed. The first speed is continued until a product of the first speed and the elapsed time at the first speed after passing the position detector equals a predetermined constant. Then, the speed is reduced to a second speed. Finally, the shaft is stopped when the flux emitter again passes the detector.
摘要翻译： 旋转轴位置控制装置，旋转轴在一转中停止。 在检测到轴上的通量发射器已经通过位置检测器之后，轴速度被设定为第一速度。 第一速度持续到通过位置检测器之后的第一速度和经过时间的乘积等于预定常数。 然后，速度降低到第二速度。 最后，当磁通发射器再次通过检测器时，轴停止。
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公开(公告)号：US5485468A
公开(公告)日：1996-01-16
申请号：US943548
申请日：1992-09-11
申请人： Tetsuro Kiriyama , Mahito Unno
发明人： Tetsuro Kiriyama , Mahito Unno
IPC分类号： G01B21/00 , G01D5/245 , H03M1/10 , H03M1/14 , H03M1/24 , H03M1/30 , G06F11/00 , H03M1/22 , H03M13/00
CPC分类号： H03M1/1076 , H03M1/143 , H03M1/24 , H03M1/30
摘要： A data output encoder capable of having its state of retaining internal error information and self-diagnostic information reset without recourse to removing power or furnishing a dedicated signal line. A reset pulse generator monitors the changing status of an externally provided output request signal. When the signal status reaches a predetermined pattern, the reset pulse generator generates reset pulses that cause an RS flip-flop circuit to reset the state in which the internal error information and self-diagnostic information are retained.
摘要翻译： 一种数据输出编码器，其能够具有保持内部错误信息和自诊断信息复位的状态，而不需要去除功率或提供专用信号线。 复位脉冲发生器监视外部提供的输出请求信号的变化状态。 当信号状态达到预定模式时，复位脉冲发生器产生复位脉冲，使复位脉冲使得RS触发器电路复位保持内部错误信息和自诊断信息的状态。
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公开(公告)号：US4689539A
公开(公告)日：1987-08-25
申请号：US939303
申请日：1986-12-05
申请人： Mahito Unno , Katsuhiro Yamamoto
发明人： Mahito Unno , Katsuhiro Yamamoto
摘要： A speed detecting device for an electric motor in which the angular stopping position of a rotary shaft is controlled with a high precision. A magnet is mounted on a rotary shaft of the motor, and a position detector detects the position of the magnet as rotated by the motor, thereby producing an output signal having a linear region. A speed calculator samples this signal in the liner region at predetermined time intervals and performs a division operation whereby a difference between a present sampled value and a preceding sampled value of the output signal is divided by the time interval, thereby to produce a speed signal which is applied to the motor as a control signal.
摘要翻译： 一种用于电动机的速度检测装置，其中旋转轴的角度停止位置被高精度地控制。 磁铁安装在电动机的旋转轴上，位置检测器检测由电动机旋转的磁体的位置，从而产生具有线性区域的输出信号。 速度计算器以预定的时间间隔在线性区域中对该信号进行采样，并执行除法运算，由此将当前采样值与输出信号的先前采样值之差除以时间间隔，从而产生速度信号， 作为控制信号施加到电动机。
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