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1. 发明授权

US4626762A AC motor control system 失效
标题翻译：交流电机控制系统
公开(公告)号：US4626762A
公开(公告)日：1986-12-02
申请号：US641995
申请日：1984-08-20
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P21/00 , H02P23/08 , H02P27/04 , H02P27/06 , H02P5/40
CPC分类号： H02P23/08
摘要： A method of controlling an AC motor which exhibits a constant torque characteristic at a rotational speed N below a base speed Nb and a constant output characteristic at a rotational speed N above the base speed Nb, comprising the steps of finding a base speed N.sub.L after limiting the output power of the AC motor, N.sub.L being derived from the base speed Nb and the ratio .eta. between maximum output power Pmax.sub.1 and maximum output power Pmax.sub.2 before and after the output power of the AC is limited, respectively, rendering the slip frequency of the AC motor constant until the rotational speed N of the AC motor reaches the base speed N.sub.L, varying the slip frequency in inverse proportion to the rotational speed N for N between N.sub.L and Nb (N.sub.L

2. 发明授权

US4837491A Motor velocity control apparatus 失效
标题翻译：电机速度控制装置
公开(公告)号：US4837491A
公开(公告)日：1989-06-06
申请号：US928208
申请日：1986-10-16
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , H02P5/50
CPC分类号： H02P5/50
摘要： A motor velocity control apparatus according to the present invention has at least one of the following is included with a servoamplifier: a current feedback gain changeover circuit; a velocity feedback gain changeover circuit; a velocity loop gain changeover circuit; a changeover circuit for a current loop amplitude and phase table storage circuit. Accordingly, the invention is well-suited for changeover control of a plurality of spindle motors of different ratings in a machine tool.
摘要翻译： PCT No.PCT / JP86 / 00078 Sec。 371日期1986年10月16日第 102（e）日期1986年10月16日PCT提交1986年2月20日PCT公布。公开号WO86 / 05044 日本1986年8月28日。根据本发明的电动机速度控制装置在伺服放大器中包括以下中的至少一个：电流反馈增益转换电路; 速度反馈增益转换电路; 速度环增益转换电路; 用于电流环路幅度和相位表存储电路的转换电路。因此，本发明非常适用于机床中不同额定值的多个主轴电机的切换控制。

3. 发明授权

US4641069A Plural motor changeover control system 失效
标题翻译：多电机切换控制系统
公开(公告)号：US4641069A
公开(公告)日：1987-02-03
申请号：US631559
申请日：1984-07-10
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , G05B19/414 , G05B11/32
CPC分类号： G05B19/4144
摘要： A plural motor changeover control system for using a plurality of motors (1a, 1b), the power outputs of which differ, by successively switching among the motors. A conversion table (32a, 32b) corresponding to a motor designated for operation from among the plurality of motors (1a, 1b) is selected, and an amplitude command is fetched from the selected conversion table, which command corresponds to a velocity error, which is a difference between an actual velocity of the designated motor and a commanded velocity. The amplitude command is applied to the servo control circuit to control the designated motor.
摘要翻译： PCT No.PCT / JP83 / 00408 Sec。 371日期1984年7月10日 102（e）日期1984年7月10日PCT提交1983年11月11日PCT公布。出版物WO84 / 02040 日期：1984年5月24日。多个电动机切换控制系统，其通过在电动机之间连续切换来使用其电力输出不同的多个电动机（1a，1b）。选择与多个电动机（1a，1b）中指定用于操作的电动机对应的转换表（32a，32b），并且从所选转换表中取出振幅指令，该指令对应于速度误差，其中是指定电机的实际速度与指令速度之间的差值。将幅度指令应用于伺服控制电路以控制指定的电机。

4. 发明授权

US4207504A Spindle control system 失效
标题翻译：主轴控制系统
公开(公告)号：US4207504A
公开(公告)日：1980-06-10
申请号：US940334
申请日：1978-09-07
申请人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： B23Q5/20 , B23Q15/00 , B23Q15/26 , G05B19/39 , G05D3/00 , G05D3/12 , H02P3/04 , H02P3/06 , G05B13/00
CPC分类号： G05B19/39 , B23Q15/26 , G05B2219/34388 , G05B2219/37313 , G05B2219/37314 , G05B2219/42104 , G05B2219/45136 , G05B2219/50031
摘要： A speed detector produces a spindle speed signal proportional to the revolving speed of a spindle. A specified position detector provides a specified position signal when the spindle assumes a specified rotational position. A spindle motor speed control unit controls the spindle motor so that the motor speed agrees with a speed command. When spindle orientation is requested, one integrator circuit responds to the specified position signal to integrate the spindle speed signal. The output from the integrator circuit is applied to the speed control unit in place of the speed command.
摘要翻译：速度检测器产生与主轴转速成正比的主轴转速信号。当主轴承受指定的旋转位置时，指定的位置检测器提供指定的位置信号。主轴电机速度控制单元控制主轴电机，使电机转速符合速度指令。当要求主轴定向时，一个积分器电路响应指定的位置信号以整合主轴转速信号。来自积分器电路的输出被代替速度指令应用于速度控制单元。

5. 发明授权

US4362976A Driving circuit for DC motor 失效
标题翻译：直流电机驱动电路
公开(公告)号：US4362976A
公开(公告)日：1982-12-07
申请号：US211974
申请日：1980-12-01
申请人： Yoshiki Fujioka , Yutaka Koiwai , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Yutaka Koiwai , Mitsuhiko Hirota
IPC分类号： H02P3/14 , B32B15/08 , H02P7/292 , H02P5/16
CPC分类号： H02P7/293 , Y10S388/902 , Y10S388/917 , Y10S388/921
摘要： Disclosed is a DC motor drive circuit adapted to prevent thyristor commutation failure when a thyristor-controlled three-phase full-wave reversible bridge undergoes a transition in operating mode from a power inversion mode to a power rectification mode. The drive circuit includes a thyristor-controlled three-phase full-wave reversible bridge whose firing phase is controlled in accordance with a speed deviation between the actual speed of a DC motor and a command speed, polarity discrimination means for discriminating the polarity of the speed deviation, firing phase narrowing means operable in the power inversion mode to narrow the thyristor firing phase down to a minimum firing phase due to a reversal in the polarity of the speed deviation, detection means for detecting an intermittence in armature current, and blocking means for blocking firing of the three-phase thyristor-controlled inverter for a prescribed period of time when the intermittence of the armature current has been detected, the operation mode of the inverter being changed over from the power inversion mode to the power rectification mode after the lapse of said prescribed time period.
摘要翻译：公开了一种直流电动机驱动电路，其适用于在晶闸管控制的三相全波可逆桥经过工作模式从功率转换模式到功率整流模式的转变时，防止晶闸管换向故障。驱动电路包括一个晶闸管控制的三相全波可逆桥，其起火相位根据直流电动机的实际速度与指令速度之间的速度偏差进行控制;极性鉴别装置，用于鉴别速度极性偏离，点火相位变窄装置，其在功率反转模式下可操作，由于速度偏差的极性反转而将晶闸管起火阶段缩小到最小点火阶段，用于检测电枢电流的间歇的检测装置，以及用于在检测到电枢电流的间歇时，三相晶闸管控制逆变器的停止点火规定的时间段，逆变器的动作模式在经过后从功率反转模式切换到功率整流模式的规定时间段。

6. 发明授权

US4268782A Control system for a DC motor 失效
标题翻译：直流电机控制系统
公开(公告)号：US4268782A
公开(公告)日：1981-05-19
申请号：US940279
申请日：1978-09-07
申请人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota , Naoto Ohta
发明人： Shigeki Kawada , Yoshiki Fujioka , Mitsuhiko Hirota , Naoto Ohta
IPC分类号： H02P3/08 , H02P7/06 , H02P7/29 , H02P7/292
CPC分类号： H02P7/293 , Y10S388/902 , Y10S388/91 , Y10S388/915 , Y10S388/93
摘要： A system for controlling DC motors of the type employing permanent magnets as field poles. The firing phase angle of a thyristor is controlled in response to an error signal representative of an error between a commanded motor speed and an actual motor speed. For preventing demagnetization of the permanent magnets due to the armature reaction, the clamp level of the error signal is changed in accordance with the actual motor speed.
摘要翻译：用于控制使用永磁体作为场极的类型的直流电动机的系统。响应于表示指令的电动机速度和实际电动机速度之间的误差的误差信号来控制晶闸管的触发相位角。为了防止由于电枢反应导致的永磁体的退磁，误差信号的钳位电平根据实际的电动机速度而变化。

7. 发明授权

US4268781A DC Motor drive system 失效
标题翻译：直流电机驱动系统
公开(公告)号：US4268781A
公开(公告)日：1981-05-19
申请号：US850793
申请日：1977-11-11
申请人： Shigeki Kawada , Shigeaki Oyama , Yoshiki Fujioka , Mitsuhiko Hirota , Toyohiko Nishimori
发明人： Shigeki Kawada , Shigeaki Oyama , Yoshiki Fujioka , Mitsuhiko Hirota , Toyohiko Nishimori
IPC分类号： H02P7/29 , H02P7/292 , H02P5/16
CPC分类号： H02P7/293 , Y10S388/903 , Y10S388/917
摘要： An actual speed N of a DC motor and an armature current Ia are detected to detect the motor output N.times.Ia. The motor speed is changed so that the detected motor output may not exceed a predetermined value. The spark generation of the motor brush is prevented when an over load is applied to the motor.
摘要翻译：检测直流电动机的实际速度N和电枢电流Ia，以检测电动机输出Nx1a。改变电动机速度，使得检测到的电动机输出不会超过预定值。当对电动机施加过载时，防止电动机电刷产生火花。

8. 发明授权

US5270632A Driving system for an induction motor having a circuit for generating a slip pulse and a phase shifting pulse 失效
标题翻译：具有用于产生滑差脉冲和相移脉冲的电路的感应电动机的驱动系统
公开(公告)号：US5270632A
公开(公告)日：1993-12-14
申请号：US855704
申请日：1992-05-07
申请人： Mitsuhiko Hirota , Tadashi Inoue
发明人： Mitsuhiko Hirota , Tadashi Inoue
IPC分类号： H02P27/08 , H02P23/08 , H02R7/00
CPC分类号： H02P23/0027 , H02M7/53871 , H02P23/08
摘要： A driving system for an induction motor which is capable of properly controlling the speed of an induction motor over its high-speed revolution range and also features an excellent responsiveness to a speed command. In this system, a slip pulse (SSP) and a phase shifting pulse (FSP) are calculated by a slip pulse generator circuit (20) and a phase shifting pulse generator circuit (21) in accordance with slip pulse data (SB) and phase shifting pulse data (FB) which are calculated by a processor (1) in accordance with the speed command and an output of a speed detector. A counter (24) issues the first changeover signal (CS1) each time it receives a specified number of pulses from a pulse overlapping circuit (23). The first changeover signal corresponds to a feedback pulse calculated in accordance with the output of the speed detector and also to the slip pulse and the phase shifting pulse added. A square wave output circuit (26) generates square wave signals (Us through Ws) in accordance with the first changeover signal, the second changeover signal (CS2), which is obtained by delaying the first changeover signal, and rotational direction identifying signals (RS, RS) received from the pulse overlapping circuit. While the motor is running at high speed, the drive of the motor is controlled in accordance with the square wave signals; while it is running at low speed, PWM signals (Up through Wp) generated by the processor are used in place of the square wave signals.
摘要翻译： PCT No.PCT / JP91 / 01161 Sec。 371日期：1992年5月7日 102（e）日期1992年5月7日PCT提交1991年8月30日PCT公布。 WO92 / 04763 PCT出版物日期：1992年3月19日。一种用于感应电机的驱动系统，其能够在高速旋转范围内适当地控制感应电动机的速度，并且还具有对速度指令的优异响应性。在该系统中，通过滑差脉冲发生器电路（20）和相移脉冲发生器电路（21）根据滑差脉冲数据（SB）和相位来计算滑差脉冲（SSP）和移相脉冲（FSP）根据速度指令和速度检测器的输出由处理器（1）计算的移位脉冲数据（FB）。每当从脉冲重叠电路（23）接收到指定数量的脉冲时，计数器（24）发出第一切换信号（CS1）。第一切换信号对应于根据速度检测器的输出计算的反馈脉冲，以及相加的滑移脉冲和相移脉冲。方波输出电路26根据第一转换信号，通过延迟第一转换信号而获得的第二转换信号（CS2）和旋转方向识别信号（...）产生方波信号（Us通过＆amp;上升和下降沿） RS，＆upbar＆RS）从脉冲重叠电路接收。电机高速运转时，根据方波信号控制电机的驱动; 当它以低速运行时，由处理器产生的PWM信号（Up through＆upbar＆Wp）代替方波信号。

9. 发明授权

US4928052A Power supply regenerating circuit 失效
标题翻译：电源再生电路
公开(公告)号：US4928052A
公开(公告)日：1990-05-22
申请号：US274148
申请日：1988-11-09
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P23/06
CPC分类号： H02P23/06
摘要： A power supply regenerating circuit according to the present invention is used in an inductor motor drive circuit which performs motor drive control and regenerative control. The induction motor drive circuit has a parallel circuit including a reverse connected diode (D10) and a resistor (R1) connected between a circuit (C2), which rectifies and then smoothes the induced electromotive force of an induction motor (M) during deceleration, and a bridge circuit (Tr1-Tr6) which effects a conversion into AC power. Regenerative power blocked by the diode (D10) is supplied to the bridge circuit (Tr1-Tr6) as a current limited by the resistor (R1), and the regenerative power is regenerated only during a predetermined interval of a three-phase period.

10. 发明授权

US4499414A AC Motor control method 失效
标题翻译：交流电机控制方式
公开(公告)号：US4499414A
公开(公告)日：1985-02-12
申请号：US438692
申请日：1982-11-02
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P21/00 , H02P23/08 , H02P27/04 , H02P27/06 , H02P5/40
CPC分类号： H02P23/08
摘要： A method of controlling an AC motor which exhibits a constant torque characteristic at a rotational speed N below a base speed Nb and a constant output characteristic at a rotational speed N above the base speed Nb, comprising the steps of finding a base speed N.sub.L after limiting the output power of the AC motor, N.sub.L being derived from the base speed Nb and the ratio .eta. between maximum output power Pmax.sub.1 and maximum output power Pmax.sub.2 before and after the output power of the AC is limited, respectively, rendering the slip frequency of the AC motor constant until the rotational speed N of the AC motor reaches the base speed N.sub.L, varying the slip frequency in inverse proportion to the rotational speed N for N between N.sub.L and Nb (N.sub.L
摘要翻译：一种控制交流电动机的方法，其以低于基本速度Nb的转速N和在基本速度Nb以上的转速N下的恒定输出特性呈现恒定的转矩特性，包括以下步骤：在限制之后找到基本速度NL 交流电动机的输出功率NL从基本速度Nb导出，并且AC输出功率之前和之后的最大输出功率Pmax1和最大输出功率Pmax2之间的比值ηa分别被限制，交流电动机常数直到交流电动机的转速N达到基本速度NL，使转差频率与NL和Nb之间的N的转速N成反比（NL

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