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    • 21. 发明申请
    • ELECTRIC MOTOR SYSTEM AND MOTOR CONTROL METHOD
    • 电动马达系统及电机控制方法
    • US20150110525A1
    • 2015-04-23
    • US14587037
    • 2014-12-31
    • Shogo SAKAMOTOTakuya MURATATakeo SEKIHiroyuki KIGUCHI
    • Shogo SAKAMOTOTakuya MURATATakeo SEKIHiroyuki KIGUCHI
    • G03G15/00G05B11/42G05B11/18
    • G03G15/757G03G21/1647G03G21/1666G03G21/1671G03G21/1676G05B11/18G05B11/42G05B2219/41021G05B2219/41321
    • An electric motor system includes a brushless direct-current motor, a driver circuit, a position sensor, and a control circuit. The motor has an output shaft for transmitting torque. The driver circuit supplies power to the motor according to a control signal input thereto. The position sensor measures an angular, rotational position of the motor shaft. The control circuit controls operation of the motor. The control circuit includes a position sensor terminal, a reference terminal, a differential calculator, a controller, and a gain adjuster. The position sensor terminal receives a feedback signal. The reference terminal receives a reference signal. The differential calculator generates an error signal representing a difference between the measured and targeted rotational positions. The controller generates the control signal based on the error signal through a combination of control actions. The gain adjuster is connected to the controller to adjust a gain of each control action.
    • 电动机系统包括无刷直流电动机,驱动电路,位置传感器和控制电路。 马达具有用于传递扭矩的输出轴。 驱动电路根据输入的控制信号向马达供电。 位置传感器测量电机轴的角度,旋转位置。 控制电路控制电机的运行。 控制电路包括位置传感器端子,参考端子,差分计算器,控制器和增益调节器。 位置传感器端子接收反馈信号。 参考端子接收参考信号。 差分计算器产生表示测量的和目标旋转位置之间的差的误差信号。 控制器通过控制动作的组合,根据误差信号生成控制信号。 增益调节器连接到控制器,以调整每个控制动作的增益。
    • 22. 发明授权
    • Machine tool and controlling method thereof
    • 机床及其控制方法
    • US08299743B2
    • 2012-10-30
    • US12685996
    • 2010-01-12
    • Satoshi AbetaToshihiro Yonezu
    • Satoshi AbetaToshihiro Yonezu
    • G05B19/25
    • G05B19/19B23Q15/02B24B49/02G05B2219/37345G05B2219/41021G05B2219/45161G05B2219/50062G05B2219/50074
    • A machine tool a tool includes a supporting member relatively movable to a workpiece along a predetermined axis, a servo motor configured to drive the tool supporting member to the workpiece along the predetermined axis, a sizing sensor configured to measure a profile of the workpiece and to output a size deviation of measured values from a target profile, and a position detector configured to detect at least one of a relative position of the tool supporting member to the workpiece and a rotational position angle of the servo motor. The a servo driver is configured to drive the servo motor, and has a first feedback control having an output based on the size deviation, and a second feedback control based on an output of the position detector. The servo drives the servo motor by combining the outputs of the first and second feedback controls.
    • 一种机床工具,包括沿着预定轴线相对移动到工件的支撑构件,构造成沿着预定轴线将工具支撑构件驱动到工件的伺服电动机,被配置为测量工件轮廓的施胶传感器, 从目标轮廓输出测量值的尺寸偏差;以及位置检测器,被配置为检测工具支撑构件与工件的相对位置和伺服电动机的旋转位置角度中的至少一个。 伺服驱动器被配置为驱动伺服电动机,并且具有基于尺寸偏差的输出的第一反馈控制和基于位置检测器的输出的第二反馈控制。 伺服驱动伺服电机通过组合第一和第二反馈控制的输出。
    • 24. 发明申请
    • Controller for die cushion mechanism
    • 模具缓冲机构控制器
    • US20060267535A1
    • 2006-11-30
    • US11438394
    • 2006-05-23
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraSatoshi Ikai
    • G05B5/01
    • G05B19/19B21D24/02G05B2219/41021G05B2219/41251G05B2219/42083G05B2219/45143G05B2219/49356
    • A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed instruction of the servo motor, based on a force instruction value instructed by the force instructor and a force detection value detected by the force detector. The speed instruction generator generates the speed instruction by multiplying a force gain by a force difference determined from a difference between the force instruction value and the force detection value. The speed instruction generator changes the force gain, based on a spring constant corresponding value of the spring element determined from a force indicator that works between the slide and the die cushion. With this arrangement, the die cushion mechanism can be controlled with high precision, even when a mechanical characteristic changes. A force indicator is a force instruction value or a force detection value. In place of the force indicator, a spring constant corresponding value can be determined according to displacement of the spring element or a position of the die cushion mechanism.
    • 用于冲模缓冲机构的控制器包括:弹簧元件,其在模具缓冲机构和滑块之间根据力而移位; 指导力量的强制教练; 检测力的力检测器; 以及速度指令发生器,其基于由力指示器指示的力指令值和由力检测器检测的力检测值,生成伺服电动机的速度指令。 速度指令发生器通过将力增益乘以由力指令值和力检测值之间的差确定的力差而产生速度指令。 速度指令发生器基于从滑块和模具垫之间工作的力指示器确定的弹簧元件的弹簧常数对应值来改变力增益。 通过这种布置,即使机械特性变化,也能够高精度地控制模具缓冲机构。 力指示器是力指令值或力检测值。 代替力指示器,可以根据弹簧元件的位移或模具缓冲机构的位置来确定弹簧常数对应值。