Motor control device and motor system
    13.
    发明授权
    Motor control device and motor system 有权
    电机控制装置和电机系统

    公开(公告)号:US08305022B2

    公开(公告)日:2012-11-06

    申请号:US12686621

    申请日:2010-01-13

    IPC分类号: H02K29/06

    摘要: A motor control device has first to third amplifiers which amplify voltage generated at first to third shunt resistances connected to first to third drivers to supply driving current of each of three phases to a three-phase brushless motor, first to third sample-hold circuits which sample and hold voltage amplified by the first to third amplifiers, a multiplexer which sequentially selects and outputs voltage values held by the first to third sample-hold circuits, an A/D converter which performs A/D conversion on output signals of the multiplexer, and an arithmetic unit which calculates the driving current through an output signal of the A/D converter, estimates a magnetic pole position of the motor based on the driving current, and performs pulse width modulation (PWM) control on the driving current by controlling the first to third drivers.

    摘要翻译: 电动机控制装置具有第一至第三放大器,其放大连接到第一至第三驱动器的第一至第三分流电阻产生的电压,以将三相中的每一个的驱动电流提供给三相无刷电动机,第一至第三采样保持电路, 由第一至第三放大器放大的采样和保持电压,依次选择并输出由第一至第三采样保持电路保持的电压值的多路复用器,对多路复用器的输出信号执行A / D转换的A / D转换器, 以及计算通过A / D转换器的输出信号的驱动电流的运算单元,基于驱动电流来估计电动机的磁极位置,并通过控制驱动电流对驱动电流进行脉宽调制(PWM)控制 第一到第三个司机。

    DRIVER
    14.
    发明申请
    DRIVER 有权
    驱动程序

    公开(公告)号:US20110089912A1

    公开(公告)日:2011-04-21

    申请号:US12723874

    申请日:2010-03-15

    IPC分类号: G05F1/70

    摘要: A driver includes a sensor sensing a driving current and a driving voltage for an external device including a capacitor, a PWM, a PFC, and a controller. The PFC includes a phase angle estimation unit estimating a phase angle variation of an input voltage to the PFC based on a parameter regarding the driving current, a voltage compensator compensating an error of the driving voltage, a first current estimation unit estimating a variation of a charge of the capacitor based on the charge current and the phase angle variation estimated by the phase angle estimation unit, a second current estimation unit estimating a driving current variation, and a calculator calculating a duty ratio for the PWM based on the variation of the charge current estimated by the first current estimation unit and the driving current variation estimated by the second current estimation unit.

    摘要翻译: 驱动器包括感测用于包括电容器,PWM,PFC和控制器的外部装置的驱动电流和驱动电压的传感器。 PFC包括相位角估计单元,其基于关于驱动电流的参数估计到PFC的输入电压的相位角变化,补偿驱动电压的误差的电压补偿器,第一电流估计单元估计 基于由相位角估计单元估计的充电电流和相位角变化的电容器的充电,第二电流估计单元估计驱动电流变化,以及计算器基于电荷变化计算PWM的占空比 由第一当前估计单元估计的电流和由第二电流估计单元估计的驱动电流变化。

    Sealed rotary feeder
    16.
    发明授权
    Sealed rotary feeder 失效
    密封旋转进料器

    公开(公告)号:US5538383A

    公开(公告)日:1996-07-23

    申请号:US432585

    申请日:1995-05-01

    IPC分类号: B29B17/02 B65G53/46 G01F11/10

    摘要: An object of this invention is to provide a sealed rotary feeder for use in an apparatus which continuously processes chips made of synthetic resin with a coating under high pressure and temperature without degrading its material strength. The sealed rotary feeder according to this invention consists of a cylindrical casing having a chip inlet on the upper side of the cylindrical casing and a chip outlet on the low side of the cylindrical casing, a rotor in the cylindrical casing, plural blades which are movably inserted into channels radially formed around the rotor, and divide the cylindrical casing into plural baskets, pressing apparatus which press the plural blades against the inner surface of the cylindrical casing, and walls which form the channels are extended at the vicinity of the inner surface of the cylindrical casing.

    摘要翻译: 本发明的目的是提供一种密封的旋转进给器,用于在不降低材料强度的情况下,用合成树脂在高压和高温下连续地加工由合成树脂制成的切屑的设备。 根据本发明的密封旋转给料机由圆柱形壳体组成,圆柱形壳体在圆柱形壳体的上侧具有切屑入口,在圆筒形壳体的低侧具有切屑出口,圆柱形壳体中的转子,可移动的多个叶片 插入在转子周围径向形成的通道中,并将圆筒形壳体分成多个筐,将多个叶片压靠在圆筒形壳体的内表面上的压制装置,并且形成通道的壁在其内表面附近延伸 圆柱形外壳。

    Manufacturing method and apparatus for shell of universal-joint
    17.
    发明授权
    Manufacturing method and apparatus for shell of universal-joint 失效
    万向节外壳的制造方法和装置

    公开(公告)号:US4470288A

    公开(公告)日:1984-09-11

    申请号:US412088

    申请日:1982-08-27

    摘要: Manufacturing method for a tubular shell of a constant velocity universal-joint for flexibly coupling two rotary shafts, to one of which the shell is fixed at a flange thereof. The method comprises a groove and preliminary flange forming process and a flange forming process. In the former process a hollow cylindrical blank is applied pressing in a radial direction for forming plural grooves therein and forming at the same time a preliminary flange at one end of the cylindrical blank by expanding it into a funnel shape, and in the latter process the preliminary flange formed on a semi-finished article in the former process is formed into a completed flange by a flange forming die, while holding the semi-finished article in a restrained status under pressure from either side, external and internal, by means of restraining dies. An apparatus suitable for performing the method is also disclosed.

    摘要翻译: 用于柔性地联接两个旋转轴的等速万向接头的管状壳体的制造方法,其中一个壳体固定在其凸缘上。 该方法包括凹槽和预凸缘形成工艺和凸缘成形工艺。 在前一种方法中,中空圆柱形坯料沿径向施加压力以在其中形成多个凹槽,同时通过将圆筒形坯料的一端扩展成漏斗形状同时形成预备凸缘,在后一过程中 在前一工艺中形成在半成品上的初步凸缘通过凸缘成形模具形成为完整的凸缘,同时通过约束从两侧,外部和内部的压力将半成品保持在约束状态 死了 还公开了一种适于执行该方法的装置。

    Shell of a universal-joint and a manufacturing method therefor
    18.
    发明授权
    Shell of a universal-joint and a manufacturing method therefor 失效
    万向节壳及其制造方法

    公开(公告)号:US4453395A

    公开(公告)日:1984-06-12

    申请号:US342010

    申请日:1982-01-15

    摘要: A shell for a universal joint for flexibly coupling two rotary shafts. The shell is constructed using a manufacturing technique to produce a shell of light weight and excellent strength. The shell generally has a hollow cylindrical configuration and is secured at one end to a rotary shaft and formed to have a plurality of grooves extending parallel to its cylindrical axis. A second rotary shaft includes portions which engage the plurality of grooves for transmitting movement from one shaft to the other through the shell. The shell may be formed using a tubular work piece or a planar work piece, and may be provided in substantially complete form by use of a machine press prior to subjecting the material to an ironing process to make the grooves of accurate shape and dimension. The process is performed such that no machining is required to form the grooves and produce the shell.

    摘要翻译: PCT No.PCT / JP81 / 00079 Sec。 371日期1982年1月15日 102(e)日期1982年1月15日PCT提交1981年4月7日PCT公布。 出版物WO81 / 03294 日期:1981年11月26日。一种用于柔性联接两个旋转轴的万向节的外壳。 外壳采用制造技术制造,制造重量轻,强度优良的外壳。 壳体通常具有中空圆柱形构造并且在一端固定到旋转轴并且形成为具有平行于其圆柱轴线延伸的多个凹槽。 第二旋转轴包括接合多个槽的部分,用于将运动通过壳体从一个轴传递到另一个轴。 壳可以使用管状工件或平面工件形成,并且可以在使材料经受熨烫过程以使凹槽具有精确的形状和尺寸之前通过使用机器压机以基本上完​​整的形式提供。 执行该过程,使得不需要加工来形成凹槽并产生壳体。

    Driver
    19.
    发明授权
    Driver 有权
    司机

    公开(公告)号:US08115458B2

    公开(公告)日:2012-02-14

    申请号:US12723874

    申请日:2010-03-15

    IPC分类号: G05F1/70 G05F5/02

    摘要: A driver includes a sensor sensing a driving current and a driving voltage for an external device including a capacitor, a PWM, a PFC, and a controller. The PFC includes a phase angle estimation unit estimating a phase angle variation of an input voltage to the PFC based on a parameter regarding the driving current, a voltage compensator compensating an error of the driving voltage, a first current estimation unit estimating a variation of a charge of the capacitor based on the charge current and the phase angle variation estimated by the phase angle estimation unit, a second current estimation unit estimating a driving current variation, and a calculator calculating a duty ratio for the PWM based on the variation of the charge current estimated by the first current estimation unit and the driving current variation estimated by the second current estimation unit.

    摘要翻译: 驱动器包括感测用于包括电容器,PWM,PFC和控制器的外部装置的驱动电流和驱动电压的传感器。 PFC包括相位角估计单元,其基于关于驱动电流的参数估计到PFC的输入电压的相位角变化,补偿驱动电压的误差的电压补偿器,第一电流估计单元估计 基于由相位角估计单元估计的充电电流和相位角变化的电容器的充电,第二电流估计单元估计驱动电流变化,以及计算器基于电荷变化计算PWM的占空比 由第一当前估计单元估计的电流和由第二电流估计单元估计的驱动电流变化。