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    • 61. 发明申请
    • SERVER CONTROLLER AND A METHOD FOR CONTROLLING A PLURALITY OF MOTORS
    • 伺服控制器及其控制方法
    • US20100231158A1
    • 2010-09-16
    • US12306723
    • 2007-12-28
    • Ingvar Jonsson
    • Ingvar Jonsson
    • G05B11/42G05B11/32
    • H02P5/46G05B19/258G05B19/318G05B19/378G05B2219/42033G05B2219/42186H05K7/1452
    • Servo controller for controlling a plurality of motors including a master motor and a slave motor cooperatively driving a movable member. The servo controller is configured to control the master motor and the slave motor based on position references for the master motor. The servo controller includes a master speed controller configured to calculate a reference torque for the master motor based on speed errors for the master motor. The slave speed controller is configured to calculate reference torques for the slave motor based on speed errors for the slave motor. Each of the reference torques includes a proportional torque part and an integral torque part. The servo controller is configured to calculate each of the integral torque parts based on the speed errors of the master motor and the speed errors of the slave motor, such that the torques due to the integral torque parts will be distributed equally between the master and slave motors or according to a predefined ratio.
    • 伺服控制器,用于控制包括主电动机和从动电动机的多个电动机,协同驱动可移动部件。 伺服控制器配置为根据主电机的位置参考值控制主电机和从动电机。 伺服控制器包括主速度控制器,其被配置为基于主电动机的速度误差来计算主电动机的参考转矩。 从速控制器被配置为基于从动马达的速度误差来计算从动马达的基准转矩。 每个参考转矩包括比例扭矩部分和整体转矩部分。 伺服控制器被配置为基于主电动机的速度误差和从动电机的速度误差来计算每个积分转矩部分,使得由于整体转矩部分引起的转矩将平均分配在主机和从机之间 电机或按照预定比例。
    • 63. 发明授权
    • Rotary indexing table driven by an induction motor
    • 由感应电动机驱动的旋转分度台
    • US07638963B2
    • 2009-12-29
    • US11235681
    • 2005-09-26
    • Richard M. AmendoleaRick Steinkamp
    • Richard M. AmendoleaRick Steinkamp
    • G05B11/01G05B11/32
    • B23Q16/02B23Q2210/004Y10T74/1488
    • The present invention is a rotary indexing table driven by an induction motor. The rotary indexing table includes a rotatable work supporting platform, an AC induction motor including a motor shaft coupled to the rotatable work supporting platform; and a controller operatively coupled to the AC induction motor. The AC induction motor is equipped with a high resolution positional feedback device. The high-resolution positional feedback device may be an encoder or a resolver. The controller is configured to drive the AC induction motor in a direct drive manner. The high-resolution positional feedback device is operatively coupled to the controller, and the controller is configured to filter a signal provided by the high-resolution positional feedback device. The signal provided by the high-resolution positional feedback device may be a square wave or a sine wave. The present invention is also directed to a method precisely driving and positioning a rotary indexing table.
    • 本发明是由感应电动机驱动的旋转分度台。 旋转分度台包括可旋转工作支撑平台,AC感应电动机,其包括联接到可旋转工作支撑平台的电动机轴; 以及可操作地耦合到所述AC感应电动机的控制器。 交流感应电机配有高分辨率位置反馈装置。 高分辨率位置反馈装置可以是编码器或旋转变压器。 该控制器配置为以直接驱动方式驱动交流感应电动机。 高分辨率位置反馈装置可操作地耦合到控制器,并且控制器被配置为对由高分辨率位置反馈装置提供的信号进行滤波。 由高分辨率位置反馈装置提供的信号可以是方波或正弦波。 本发明还涉及精确地驱动和定位旋转分度台的方法。
    • 65. 发明申请
    • IRRIGATION FIELD MODULE MATRIX CONFIGURED FOR WIRELESS COMMUNICATION WITH A CENTRAL CONTROL SERVER
    • 用于与中央控制服务器进行无线通信配置的灌溉场模块矩阵
    • US20090145974A1
    • 2009-06-11
    • US12109997
    • 2008-04-25
    • Daniel Joseph Fekete
    • Daniel Joseph Fekete
    • B05B17/04G05B11/32
    • G05B15/02A01G25/16B05B12/12
    • The invention is an irrigation field module matrix configured for wireless communication with a central control server. The central control server contains a database with relevant information regarding features, parameters, and characteristics of a particular irrigation system. This system utilizes proprietary irrigation software to control a plurality of field modules, at one or more remote locations, via a network bridge adapter. An irrigation system may comprise a single server, or multiple servers that may be configured so that control of the entire system is centralized, and control of one or multiple irrigation locations may be accomplished remotely by wirelessly accessing, monitoring and controlling a location's field module matrix.
    • 本发明是配置用于与中央控制服务器进行无线通信的灌溉田模块矩阵。 中央控制服务器包含有关特定灌溉系统的特征,参数和特征的相关信息的数据库。 该系统利用专有的灌溉软件来经由网桥适配器在一个或多个远程位置处控制多个现场模块。 灌溉系统可以包括单个服务器或可以被配置为使得整个系统的控制是集中的多个服务器,并且可以通过无线地访问,监视和控制位置的现场模块矩阵来远程地实现一个或多个灌溉位置的控制 。
    • 66. 发明授权
    • Controller for servomotor
    • 伺服电机控制器
    • US07531981B2
    • 2009-05-12
    • US11703797
    • 2007-02-08
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraKenichi Takayama
    • Yasusuke IwashitaTadashi OkitaHiroyuki KawamuraKenichi Takayama
    • G05B11/32
    • G05B19/404
    • A controller for a servomotor capable of improving accuracy of positioning and quality of a machined surface by switching modes of correction of a position command or the like, and reducing a shock at the time of switching. A correction amount generating section obtains a correction amount based on a value of a correction factor such as machine temperature. When the external signal is in ON state, a position command or the like is corrected by the correction amount obtained by the correction amount generating section and sent via switches. A correction amount holding section holds the correction amount obtained by the correction amount generating section. When the external signal turns to OFF state, the connection of the switches is changed so that correction is performed by the correction amount held in the correction amount holding section. When the connection of the switches is changed, the correction amount does not change rapidly, so that the machine does not suffer a shock. In positioning, the external signal is turns to ON state, so that the positioning is carried out accurately by performing correction by the correction amount sent from the correction amount generating section. When a high-quality machined surface is required, the external signal is turned to OFF state so that the correction amount does not change to achieve improvement in the quality of a machined surface.
    • 一种伺服电动机的控制器,其能够通过切换位置指令等的切换模式来提高加工面的定位精度和质量,并减少切换时的冲击。 校正量生成部根据机器温度等校正因子的值来求出校正量。 当外部信号处于接通状态时,通过由校正量产生部分获得的校正量来校正位置指令等并通过开关发送。 校正量保持部保持由校正量生成部获得的校正量。 当外部信号变为OFF状态时,改变开关的连接,从而通过校正量保持部中保持的校正量进行校正。 当开关的连接发生变化时,校正量不会迅速变化,因此机器不会受到冲击。 在定位中,外部信号变为接通状态,从而通过从校正量产生部分发送的校正量执行校正来精确地执行定位。 当需要高质量的加工表面时,外部信号变为断开状态,使得校正量不变,以实现加工表面的质量的提高。
    • 67. 发明申请
    • SINGLE PROCESSOR DUAL MOTOR CONTROL
    • 单处理器双电机控制
    • US20080303470A1
    • 2008-12-11
    • US11758941
    • 2007-06-06
    • Steven E. SchulzTerry Murrell
    • Steven E. SchulzTerry Murrell
    • G05B11/32G05B21/02
    • H02P5/74
    • A motor control processor is provided for motor phase current sampling of multiple variable frequency controlled electric motors. The motor control processor comprises an analog-to-digital (A/D) converter and a controller. The A/D converter has multiple analog inputs and generates a digital output signal in response to the multiple analog inputs. The controller is coupled to the A/D converter and determines a maximum desired switching frequency for a first one of the multiple variable frequency controlled electric motors. The controller further selects a base period in response to the maximum desired switching frequency and defines a phase shift time delay as a fraction of the base period so that the controller may control the multiple analog inputs of the A/D converter to sample motor phase currents of each of the multiple variable frequency controlled electric motors at sample times determined by the controller in response to the base period and the phase shift time delay.
    • 提供电机控制处理器用于多个可变频率控制电动机的电机相电流采样。 电动机控制处理器包括模数(A / D)转换器和控制器。 A / D转换器具有多个模拟输入,并响应多个模拟输入产生数字输出信号。 控制器耦合到A / D转换器,并确定多个可变频率控制的电动机中的第一个的最大期望开关频率。 控制器还响应于最大期望开关频率选择基准周期,并将相移时间延迟定义为基准周期的一部分,使得控制器可以控制A / D转换器的多个模拟输入以对电机相电流进行采样 在由控制器响应于基准周期和相移时间延迟确定的采样时间的多个可变频率控制电动机中的每一个。
    • 70. 发明申请
    • Method for detecting malfunction in clamping and machine tool
    • 检测夹紧机床故障的方法
    • US20080042682A1
    • 2008-02-21
    • US11770077
    • 2007-06-28
    • Sadatsune Ammi
    • Sadatsune Ammi
    • G01R31/34G05B11/32
    • B24B5/42B23Q17/005Y10T29/5114Y10T82/10Y10T409/303752
    • The method for detecting any clamping malfunction of the work within the machine tool which clamps both ends of the work with clamping mechanisms 23, 24 of a pair of headstocks 19, 29, and processes the work by spinning the work through synchronous rotation of main spindles 21, 22 of the pair of headstocks by servomotors 33, 34, wherein, after clamping the both ends of the work 27 with the clamping mechanisms 23, 24 of the respective headstocks 19, 20, and while both the servomotors 33, 34 of the headstocks are in a servo-ON state, a command for a minute angle α rotation is given to the servomotor 34 of only one of the headstocks, and at this point, any malfunction in clamping is determined when a current or torque generated within the servomotor of one or the other of the headstocks is smaller than a predetermined value.
    • 用于检测机床内工件的任何夹紧故障的方法,该夹紧故障通过一对主轴箱19,29的夹紧机构23,24夹紧工件的两端,并且通过主轴的同步旋转来旋转工件 通过伺服电动机33,34在一对主轴箱中的21,22,其中,在相应的主轴箱19,20的夹紧机构23,24夹紧工件27的两端之后,并且当两个伺服电机33,34 主轴箱处于伺服ON状态,仅将一个主轴箱的伺服电动机34给予一个微小角度α旋转的指令,此时在伺服电动机内产生的电流或转矩产生任何故障 一个或另一个主轴箱小于预定值。