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    • 3. 发明授权
    • Method and apparatus for controlling motor
    • 电机控制方法及装置
    • US5504404A
    • 1996-04-02
    • US307061
    • 1994-09-16
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • B60L15/02H02P21/08H02P7/06
    • B60L15/025H02P21/08Y02T10/643
    • In a method and an apparatus for controlling a motor, one type or a plurality of types of weakening current are previously set, a first torque command current determined from a speed deviation between a speed command to the motor and the present speed of the motor is compared with torque currents corresponding the torques, so that a second torque command current and a weakening current are determined and outputted depending on which range of the torque currents corresponding the torques the first torque command current falls upon. Thus, the second torque command current and the weakening current can be determined simply and efficiently. According to another method and apparatus, the weakening current and the torque current are determined while the weakening factor is varied as appropriate, on the conditions that the sum of voltage vectors of sections of the motor falls within a restrictive circle that depends on the applied voltage to the motor and that the torque current should be equal to a value resulting from multiplying the torque command current determined from the speed deviation with the weakening factor. Then, the motor can produce the maximum torque with less weakening current, thus being capable of maximum efficiency control.
    • 在一种用于控制电动机的方法和装置中,预先设定一种或多种弱化电流,从电动机的速度指令与电动机的当前速度之间的速度偏差确定的第一转矩指令电流为 与对应于扭矩的转矩电流相比,从而根据与第一转矩指令电流下降的转矩相对应的转矩电流的范围来确定和输出第二转矩指令电流和弱化电流。 因此,可以简单有效地确定第二转矩指令电流和弱化电流。 根据另一种方法和装置,在弱化因子根据适当的变化来确定弱化电流和转矩电流的条件下,在电动机部分的电压矢量之和落在取决于施加电压的限制圈内的条件下 并且转矩电流应等于由速度偏差确定的转矩指令电流与弱化因子相乘的值。 然后,电机可以产生最小扭矩,减弱电流,从而能够最大限度的提高效率。
    • 4. 发明授权
    • Controlling apparatus of motor
    • 电机控制装置
    • US5444340A
    • 1995-08-22
    • US307065
    • 1994-09-16
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • B60L3/00B60L9/18B60L11/18H02H7/08H02P6/12H02P6/16
    • B60L3/0023B60L11/1807H02H7/0844Y02T10/7005
    • In a controlling apparatus of a motor, an address generating device generates digital address signals corresponding to a position of a rotor of the motor on the basis of the Z-phase, A-phase, and B-phase signals outputted from an encoder installed in the motor. A sine wave data for driving the motor is readout based on the digital address signal from a waveform memory device to drive the motor in accordance with the sine wave data by a PWM inverter. An abnormality detecting circuit detects agreement/disagreement of a timing level of an output signal of the waveform memory device which is binarized with using zero as a threshold and shifted a predetermined amount from a leading edge or trailing edge thereof and a level of the CS signal. A motor stopping device stops the motor in response to a disagreement detecting signal of the abnormality detecting circuit.
    • 在电动机的控制装置中,地址产生装置基于从安装在电动机中的编码器输出的Z相,A相和B相信号,生成与电动机的转子位置对应的数字地址信号 电机。 基于来自波形存储装置的数字地址信号读出用于驱动电动机的正弦波数据,以通过PWM逆变器根据正弦波数据驱动电动机。 异常检测电路检测使用零作为阈值二值化的波形存储器件的输出信号的定时电平的一致/不一致,并从其前沿或后沿偏移预定量,并且CS信号的电平 。 电动机停止装置响应于异常检测电路的不一致检测信号停止电动机。
    • 5. 发明授权
    • Driving method for three-phase stepping motor
    • 三相步进电机的驱动方式
    • US5321340A
    • 1994-06-14
    • US861230
    • 1992-03-31
    • Satoshi TamakiYasuhiro KondoYasufumi Ikkai
    • Satoshi TamakiYasuhiro KondoYasufumi Ikkai
    • H02P8/22H02P8/32H02P8/00
    • H02P8/32
    • This invention provides a driving method for a three-phase stepping motor used in various types of electrical equipment, which driving method reduces vibration peculiar to a stepping motor and can drive the stepping motor smoothly. Specifically, the driving method comprises alternating two-phase conduction of conducting a current from a first terminal to a second terminal of coils having three terminals of a three-phase stepping motor internally connected by a Y-connection with three-phase conduction of conducting the first terminal to the second terminal and from a third terminal to the second terminal simultaneously, to energize the coils sequentially according to a specified sequence, thereby making the motor rotate in units of 1/2 of the basic step angle with low vibration.
    • 本发明提供了一种用于各种电气设备中的三相步进电动机的驱动方法,该驱动方法减少了步进电动机特有的振动,并能平稳地驱动步进电动机。 具体地说,驱动方法包括:将来自第一端子的电流传导到具有三相步进电机的三端的线圈的二相导通,该三相步进电动机通过三相导通三相导通, 第一端子到第二端子,并且从第三端子到第二端子同时地,根据指定的顺序顺序地给线圈通电,从而使电动机以低振动的基本阶梯角的1/2为单位旋转。
    • 8. 发明授权
    • Protecting device of electromobile
    • 电动保护装置
    • US5485375A
    • 1996-01-16
    • US307052
    • 1994-09-16
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • Satoshi TamakiYasufumi IkkaiYasuhiro Kondo
    • B60L3/00B60L3/04
    • B60L3/04
    • An electromobile includes a control device which, receiving as inputs a speed command signal outputted from an accelerator sensor and a present motor speed signal outputted from an encoder, calculates a torque command current corresponding to a difference between the inputs, to thereby control the motor in accordance with the torque command current. A protecting device is provided with includes an accelerator switch for switching an outputting state thereof depending on a presence/absence of the control device of the speed command signal. The control device an abnormality detecting device detects an abnormal state in which the torque command current assumes a value to rotate the motor white the output signal of the accelerator switch indicates that the speed command signal is not generated, and an abnormality processing device controls the motor for a safe operation response to an abnormality output from the abnormality detecting device.
    • 电动机包括控制装置,其接收从加速器传感器输出的速度指令信号和从编码器输出的当前电动机速度信号作为输入,计算对应于输入之间的差的转矩指令电流,从而控制电动机 根据转矩指令电流。 提供保护装置,其具有根据速度指令信号的控制装置的存在/不存在来切换其输出状态的加速开关。 控制装置异常检测装置检测转矩指令电流为电机白色的值的异常状态,加速开关的输出信号表示不产生速度指令信号,异常处理装置控制电动机 用于对来自异常检测装置的异常输出的安全操作响应。