Positioning control system
    1.
    发明授权
    Positioning control system 失效
    定位控制系统

    公开(公告)号:US4331910A

    公开(公告)日:1982-05-25

    申请号:US118227

    申请日:1980-02-04

    IPC分类号: G05B19/35 G05B5/01

    摘要: A positioning control system which has a servo system provided with a position feedback system for detected positional information and a velocity feedback system for detected velocity information of a motor and in which the motor is driven by the servo system in accordance with commanded positional information to position a movable machine part of a numerical-controlled machine. The disparity between the detected velocity of the movable machine part and the detected motor velocity is fed back to the control input side of the motor, thereby suppressing vibration of the movable machine part at the moment of completion of the positioning operation.

    摘要翻译: 一种定位控制系统,其具有设置有用于检测到的位置信息的位置反馈系统的伺服系统和用于检测到的电动机的速度信息的速度反馈系统,并且其中由伺服系统根据指令的位置信息来驱动电动机 数控机床的可移动机器部分。 可动机械部件的检测速度与检测出的电动机速度之间的差异被反馈到电动机的控制输入侧,从而在定位操作完成时抑制可移动机器部件的振动。

    Method for drivingly controlling a variable reluctance type motor
    2.
    发明授权
    Method for drivingly controlling a variable reluctance type motor 失效
    用于驱动控制可变磁阻型电动机的方法

    公开(公告)号:US5281903A

    公开(公告)日:1994-01-25

    申请号:US730847

    申请日:1991-09-11

    IPC分类号: H02P25/08 H02P7/36

    CPC分类号: H02P25/0925 Y02P80/116

    摘要: A drive control method for a variable reluctance type motor capable of improving the motor efficiency by preventing generation of a disturbance torque. In function generators (8A to 8C) of a controller for embodying the method, the motor rotation direction and the motor driving mode are determined based on the generation order of A- and B-phase feedback pulses from a pulse coder (7) and the sign of a torque command (Tc) from a speed loop compensation circuit (1), and, on the basis of the determination results, either one of four excitation patterns is selected. Function signal values corresponding to actual motor electrical angles (.theta.) are generated from the function generators in accordance with the selected excitation pattern, and excitation of individual phases of the motor (6) is controlled by power amplifiers (4A to 4C) which respond to voltage commands derived based on these function signal values. The excitation interruption timing is so determined as to extinguish a winding current before a disturbance torque is generated by the current which is caused to flow, due to the presence of the inductance of the stator winding, in this winding after the excitation interruption.

    摘要翻译: PCT No.PCT / JP90 / 01520 Sec。 371日期1991年9月11日 102(e)日期1991年9月11日PCT 1990年11月21日PCT PCT。 出版物WO91 / 08611 日期1991年6月13日。一种用于通过防止产生干扰转矩来提高电动机效率的可变磁阻型电动机的驱动控制方法。 在用于实施该方法的控制器的功能发生器(8A至8C)中,基于来自脉冲编码器(7)的A相和B相反馈脉冲的产生次数确定电动机旋转方向和电动机驱动模式,并且 来自速度环补偿电路(1)的转矩指令(Tc)的符号,并且基于确定结果,选择四种激励模式中的一种。 根据所选择的激励模式,从功能发生器产生对应于实际电动机电角度((θ))的功能信号值,并且由功率放大器(4A至4C)控制电动机(6)的各相的激励,功率放大器 响应基于这些功能信号值导出的电压指令。 在励磁中断之后,由于定子绕组的电感的存在而导致的电流产生干扰转矩之前,励磁中断时刻被确定为熄灭绕组电流。

    Deflection-insensitive optical rotary encoder
    3.
    发明授权
    Deflection-insensitive optical rotary encoder 失效
    偏转光学旋转编码器

    公开(公告)号:US4928009A

    公开(公告)日:1990-05-22

    申请号:US369559

    申请日:1989-04-13

    申请人: Yo Ikebe Hideaki Oku

    发明人: Yo Ikebe Hideaki Oku

    IPC分类号: G01D5/36 G01D5/244 H03M1/24

    CPC分类号: G01D5/24476 H03M1/24

    摘要: In an optical rotary encoder which detects the angle of rotation of a rotary shaft by detecting the ray of light transmitting through an angle detection pattern formed on a rotary disc coupled to the rotary shaft, a deflection detection pattern (20b) is disposed on the rotary disc separately from the angle detection pattern and the direction and magnitude of deflection of the rotary shaft with respect to the center of a bearing is detected by detecting the change in the quantity of light passing through the deflection detection pattern (20b). The angle of rotation thus detected is corrected to the angle of rotation around the axis of the rotary shaft.

    Electric servo system
    4.
    发明授权
    Electric servo system 失效
    电动伺服系统

    公开(公告)号:US4587469A

    公开(公告)日:1986-05-06

    申请号:US416626

    申请日:1982-09-10

    申请人: Yo Ikebe Hiromu Hirai

    发明人: Yo Ikebe Hiromu Hirai

    CPC分类号: G05D3/1445

    摘要: An electric servo system has an electrical drive and a controllable object driven by the electrical drive whereby an error between an actual amount of actuation of the controllable object and a target value toward which the object is controlled is applied to the electrical drive to control the same so that the amount of actuation of the controllable object coincides with the target value. A compensator is provided on the input side of the electrical drive, for compensating the load characteristics of the controllable object such that the output of the electrical drive does not have apparent dependency on torque of the load.

    摘要翻译: 电动伺服系统具有电驱动器和由电驱动驱动的可控制物体,由此可控对象的实际动作量与对象被控制的目标值之间的误差被施加到电驱动器以控制它 使得可控对象的致动量与目标值一致。 补偿器设置在电气驱动器的输入侧,用于补偿可控对象的负载特性,使得电气驱动器的输出不会明显地依赖于负载的转矩。