Motor drive with velocity noise filter
    1.
    发明申请
    Motor drive with velocity noise filter 有权
    带速度噪声滤波器的电机驱动

    公开(公告)号:US20060267528A1

    公开(公告)日:2006-11-30

    申请号:US11137958

    申请日:2005-05-25

    申请人: Thomas Rehm

    发明人: Thomas Rehm

    IPC分类号: H02P7/00

    摘要: A drive unit for controlling a motor includes a position feedback device and a velocity noise filter. The position feedback device is operable to generate a position signal relating to a position of the motor. The velocity noise filter is coupled to the position feedback device and operable to filter the position signal over a predetermined number of samples to generate a velocity feedback signal for the motor.

    摘要翻译: 用于控制电动机的驱动单元包括位置反馈装置和速度噪声滤波器。 位置反馈装置可操作以产生与马达的位置相关的位置信号。 速度噪声滤波器耦合到位置反馈装置,并且可操作以在预定数量的采样上对位置信号进行滤波,以产生用于电动机的速度反馈信号。

    AUTOMATIC CONTROL DEVICE
    2.
    发明申请

    公开(公告)号:US20170212497A1

    公开(公告)日:2017-07-27

    申请号:US15514987

    申请日:2014-09-29

    IPC分类号: G05B19/406

    摘要: Automatic control device controls servo motor. Automatic control device is provided with control section that calculates operation amount of servo motor based on the difference between current value and target value of a control amount of servo motor. Automatic control device is also provided with first filter that outputs first output value after using a first filter coefficient or a second filter coefficient to perform filtering of operation amount calculated by control section. Automatic control device is also provided with second filter, arranged in parallel with first filter, that outputs second output value after using a third filter coefficient to perform filtering of operation amount calculated by control section. Automatic control device is also provided with switching section that switches between first output value of first filter and second output value of second filter and sends one of the output values to servo motor.

    Position control device
    3.
    发明授权
    Position control device 失效
    位置控制装置

    公开(公告)号:US5939851A

    公开(公告)日:1999-08-17

    申请号:US997484

    申请日:1997-12-23

    摘要: A position control device for driving a movable member by a motor to a target position prevents a re-start of the motor by the vibration after stopping of the movable member. A re-start operation is forcedly inhibited during a predetermined period after a stopping operation of the movable member at the target position, and is permitted, only after the predetermined period, is entered by the position of the movable member is different from the target position.

    摘要翻译: 用于通过电动机将可动构件驱动到目标位置的位置控制装置防止了通过可动构件停止之后的振动来重新启动电动机。 在可动构件在目标位置的停止操作之后的预定时间段内,只有在可移动构件的位置与目标位置不同之后才允许进入再起动操作。 。

    Motor drive with velocity noise filter
    4.
    发明授权
    Motor drive with velocity noise filter 有权
    带速度噪声滤波器的电机驱动

    公开(公告)号:US07187142B2

    公开(公告)日:2007-03-06

    申请号:US11137958

    申请日:2005-05-25

    申请人: Thomas J. Rehm

    发明人: Thomas J. Rehm

    IPC分类号: H02P5/46 H02P5/00

    摘要: A drive unit for controlling a motor includes a position feedback device and a velocity noise filter. The position feedback device is operable to generate a position signal relating to a position of the motor. The velocity noise filter is coupled to the position feedback device and operable to filter the position signal over a predetermined number of samples to generate a velocity feedback signal for the motor.

    摘要翻译: 用于控制电动机的驱动单元包括位置反馈装置和速度噪声滤波器。 位置反馈装置可操作以产生与马达的位置相关的位置信号。 速度噪声滤波器耦合到位置反馈装置,并且可操作以在预定数量的采样上对位置信号进行滤波,以产生用于电动机的速度反馈信号。

    Apparatus and method for minimizing limit cycle using complementary
filtering techniques
    5.
    发明授权
    Apparatus and method for minimizing limit cycle using complementary filtering techniques 失效
    使用互补滤波技术最小化极限周期的装置和方法

    公开(公告)号:US5015934A

    公开(公告)日:1991-05-14

    申请号:US415803

    申请日:1989-09-25

    IPC分类号: G05B19/33 G05D3/20

    摘要: The apparatus controls the positioning of a device in response to a commanded input signal, and comprises an element for moving the device in response to an error signal. A sensor component determines the actual position of the device, the sensor component outputting a primary signal and a derivative signal corresponding to the actual position and velocity of the device, respectively. A complementary filter system filters the primary signal and the derivative signal to generate a derived position signal, the derived position signal being combined with the commanded input signal thereby generating the error signal. The filtering results in effectively increasing the resolution of the sensor component thereby reducing the limit cycle caused by quantization of the sensor component.

    摘要翻译: 该装置响应于指令的输入信号控制设备的定位,并且包括用于响应于错误信号移动设备的元件。 传感器部件确定装置的实际位置,传感器部件分别输出与装置的实际位置和速度相对应的主信号和导数信号。 互补滤波器系统对主要信号和导数信号进行滤波以产生导出的位置信号,导出的位置信号与指令的输入信号组合,从而产生误差信号。 该滤波导致有效地增加传感器部件的分辨率,从而减少由传感器部件的量化引起的极限循环。

    Precision apparatus with non-rigid, imprecise structure, and method for
operating same
    6.
    发明授权
    Precision apparatus with non-rigid, imprecise structure, and method for operating same 失效
    具有非刚性,不精确结构的精密装置及其操作方法

    公开(公告)号:US5946449A

    公开(公告)日:1999-08-31

    申请号:US832391

    申请日:1997-04-02

    IPC分类号: B25J9/16 B25J9/18 G05B19/404

    摘要: An apparatus which allows one to maintain precision placement of a manipulator which undergoes repeated controlled motions or trajectories is provided. The structure of the apparatus is compliant such that the manipulator may be displaced by forces applied to the mechanical structure. This compliance is due to a lack of precision in the fabrication of the component parts of the machine, and to a lack of rigidity due to a lightweight design. This displacement is of a greater magnitude than the precision positioning tolerance of the apparatus. Consequently, the manipulator may then be displaced outside of the positioning tolerance due to applied forces. However, it is a characteristic of the present invention, that despite the compliance of the mechanical structure of the apparatus, the positioning tolerance will be maintained. The controlled motion is accomplished by the generation of control signals by computer software running on a computer control system. The control software enables the system to run at much greater speeds while not exciting unwanted movement or vibration in the compliant mechanical structure.

    摘要翻译: 提供一种允许维持经受重复的受控运动或轨迹的操纵器的精确放置的装置。 该装置的结构是柔顺的,使得操纵器可能被施加到机械结构上的力所取代。 这种符合性是由于机器的部件的制造缺乏精度,以及由于轻量化设计而缺乏刚性。 该位移比设备的精度定位公差大得多。 因此,由于施加的力,机械手然后可以移动到定位公差之外。 然而,本发明的特征在于,尽管符合装置的机械结构,但是将保持定位公差。 通过在计算机控制系统上运行的计算机软件产生控制信号来实现受控运动。 控制软件使系统能够以更高的速度运行,同时不会在顺从的机械结构中刺激不必要的运动或振动。

    Servovalve drive electronics improvements
    7.
    发明授权
    Servovalve drive electronics improvements 失效
    伺服阀驱动电子改进

    公开(公告)号:US4679591A

    公开(公告)日:1987-07-14

    申请号:US840402

    申请日:1986-03-17

    摘要: The present invention provides a circuit for obtaining higher accuracy and total system response for complex mechanical impedance loads, such as earthquake simulators, and in particular to compensate for limitations in controlling the actual valve spool displacement and adequately stabilizing and controlling it at high frequencies. The improvement circuit includes a state variable filter to extend the band width of servovalve actuation frequencies by adding a lead compensation signal compensating for servovalve hydraulic responses. The output of the first filter circuit then in turn feeds a summing junction where the spool displacement feedback is provided, and the output of the summing junction or circuit is provided with the output from an additional filter which cleans up the signal by filtering out noise and insures that the phase of stabilizing signals is proper. The final input signal that is then fed into a unique drive system utlizing two amplifiers connected as current pumps to independently drive the electrical motor coils that in turn drive the valve spool to insure adequate current for driving the spool in opposite directions at high frequencies.

    摘要翻译: 本发明提供了一种用于为诸如地震模拟器的复杂机械阻抗负载获得更高精度和总系统响应的电路,并且特别地用于补偿控制实际阀芯位移并在高频下充分稳定和控制它的限制。 改进电路包括状态变量滤波器,通过增加补偿伺服阀液压响应的引导补偿信号来扩展伺服阀驱动频率的带宽。 第一滤波器电路的输出然后进给馈线,其中提供线轴位移反馈,并且求和结或电路的输出提供有来自附加滤波器的输出,滤波器滤除掉噪声并清除信号, 确保稳定信号的相位是正确的。 最后的输入信号然后被馈送到独特的驱动系统中,利用连接成当前泵的两个放大器来独立地驱动电动机线圈,该电动机线圈又驱动阀芯以确保足够的电流以在高频下以相反的方向驱动线轴。