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21.发明授权Motor drive system for driving motor provided with a plurality of windings 有权用于具有多个绕组的驱动电动机的电动机驱动系统公开(公告)号：US07932689B2
公开(公告)日：2011-04-26
申请号：US12643270
申请日：2009-12-21
IPC分类号： G05B11/01
CPC分类号： H02P6/08
摘要： A motor drive system is provided with a plurality of axis control parts for outputting PWM commands using a position command, a plurality of current supply parts which supply current to the respective windings based on the PWM commands of the respective axis control parts, and which are connected to the respective windings, a motor position detector for outputting a signal of a rotor position of the motor, a first signal supply part for supplying the output signal to one current supply part of the plurality of current supply parts, and a second signal supply part for supplying the signal supplied through the first signal supply part to an axis control part corresponding to one current supply part, and the corresponding axis control part outputs a PWM command based on the signal supplied from the one current supply part through the second signal supply part to the corresponding axis control part and the position command, and the remaining axis control part outputs the PWM command based on the signal supplied from the corresponding axis control part to the remaining axis control parts and the position command. Thereby, a motor drive system capable of driving a plurality of inverters can be made simple.
摘要翻译： 电动机驱动系统设有多个轴控制部件，用于使用位置指令输出PWM指令;多个电流供应部件，其基于各个轴控制部件的PWM指令向相应的绕组提供电流， 连接到各个绕组的电动机位置检测器，用于输出电动机的转子位置的信号的电动机位置检测器，用于将输出信号提供给多个电流供应部分的一个电流供应部分的第一信号提供部分，以及第二信号供应 部分，用于将通过第一信号提供部分提供的信号提供给对应于一个电流供应部分的轴控制部分，并且相应的轴控制部分基于通过第二信号提供从一个电流供应部分提供的信号输出PWM命令 部分到相应的轴控制部分和位置指令，剩下的轴控制部分基于PWM命令输出 将从相应的轴控制部分提供的信号转到剩余的轴控制部分和位置指令。 由此，可以使能够驱动多个逆变器的电动机驱动系统简单。
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公开(公告)号：US07863853B2
公开(公告)日：2011-01-04
申请号：US12132103
申请日：2008-06-03
IPC分类号： H02P1/26
CPC分类号： H02P21/0003 , H02P21/08 , H02P21/22
摘要： An excitation current processor of a current controller processes the excitation current corresponding to the magnetic flux instruction from the magnetic flux instruction processor. It multiplies this excitation current with a boost coefficient to obtain an excitation current instruction. Here, the boost coefficient is determined based on the difference obtained by subtracting the magnetic flux estimation value processed by the magnetic flux processor based on the excitation current feedback from the voltage conversion device from the magnetic flux instruction input from the magnetic flux instruction processor. Further, the boost coefficient can be found from the function of time from the start of the rise of the magnetic flux.
摘要翻译： 电流控制器的励磁电流处理器处理与来自磁通指令处理器的磁通指令对应的励磁电流。 它将该励磁电流与升压系数相乘以获得励磁电流指令。 这里，根据从磁通指令处理器输入的磁通指令，基于从电压变换装置的励磁电流反馈减去由磁通量处理器处理的磁通量估计值而得到的差值来确定升压系数。 此外，可以从磁通量的上升开始的时间的函数中求出升压系数。
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公开(公告)号：US07845205B2
公开(公告)日：2010-12-07
申请号：US11550330
申请日：2006-10-17
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/42087 , G05B2219/42123 , G05B2219/45143
摘要： A die cushion controller, for driving a die cushion, disposed in opposition to a slide of a press machine, by controlling a servo motor, including: a pressure command portion which prepares a pressure command value for exerting a predetermined pressure to a press material disposed between the slide and the die cushion; a pressure detecting portion which detects an actual pressure exerted on the press material; a speed correction value preparing portion which prepares a speed correction value by multiplying a differential value of the pressure command value prepared by the pressure command portion by a coefficient; and a first speed command portion which prepares a speed command value to be instructed to the servo motor based on the pressure command value prepared by the pressure command portion, the actual pressure detected by the pressure detecting portion, and the speed correction value prepared by the speed correction value preparing portion.
摘要翻译： 一种模具缓冲控制器，用于通过控制伺服电动机来驱动与冲压机的滑动相对设置的模具缓冲垫，包括：压力指令部分，其为制备的压力材料制备用于施加预定压力的压力指令值 滑块和模座之间; 压力检测部，其检测施加在所述挤压材料上的实际压力; 速度校正值准备部，其通过将由所述压力指令部准备的所述压力指令值的差分值乘以系数来准备速度校正值; 以及第一速度指令部，其基于由压力指令部准备的压力指令值，由压力检测部检测出的实际压力和由该压力指令部分准备的速度修正值，准备要指示给伺服电动机的速度指令值 速度校正值准备部。
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公开(公告)号：US07657356B2
公开(公告)日：2010-02-02
申请号：US11289319
申请日：2005-11-30
IPC分类号： G06F19/00
CPC分类号： G05B19/416 , G05B2219/37388 , G05B2219/43058 , Y10T483/1702 , Y10T483/1733
摘要： An acceleration detection unit for detecting acceleration is mounted on a driven body. When a previous block is a positioning command, the system waits till the detected value of acceleration detected by the acceleration detection unit becomes equal to or less than a set value αs after the distribution of the movement command of the positioning command is ended. If the detected value of acceleration becomes equal to or less than the set value αs, the distribution of the movement command of the next block is started. Because the cutting feed, etc., is started after the detected value of acceleration has become equal to or less than the set value αs and the vibrations stopped, machining can be conducted with high accuracy.
摘要翻译： 用于检测加速度的加速度检测单元安装在被驱动体上。 当前一块是定位命令时，在定位命令的移动指令的分配结束之后，系统等待直到由加速度检测单元检测到的加速度的检测值变为等于或小于设定值αα。 如果检测到的加速度值等于或小于设定值ααα，则开始下一个程序段的移动指令的分配。 由于在加速度的检测值变得等于或小于设定值αα并且振动停止之后开始切削进给等，因此可以高精度地进行加工。
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公开(公告)号：US07656106B2
公开(公告)日：2010-02-02
申请号：US11482011
申请日：2006-07-07
申请人： Yasusuke Iwashita , Yukio Toyozawa , Kazuomi Maeda
发明人： Yasusuke Iwashita , Yukio Toyozawa , Kazuomi Maeda
CPC分类号： G05B19/195 , G05B19/4141
摘要： There is provided a servo controller for synchronously controlling a master side drive source to drive one drive axis and a slave side drive source to drive the other drive axis. The servo controller includes a correction data calculation means for calculating correction data to correct a positional deviation of a slave side drive source according to a synchronization error which is a difference between a positional deviation of a master side drive source and a positional deviation of the slave side drive source, in which the correction data is added to the positional deviation of the slave side drive source.
摘要翻译： 提供了一个伺服控制器，用于同步控制主侧驱动源以驱动一个驱动轴和从侧驱动源来驱动另一个驱动轴。 伺服控制器包括校正数据计算装置，用于根据同步误差计算校正数据以校正从动侧驱动源的位置偏差，所述同步误差是主侧驱动源的位置偏差与从动件的位置偏差之间的差 侧校正数据被添加到从动侧驱动源的位置偏差。
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26.发明授权公开(公告)号：US07631528B2
公开(公告)日：2009-12-15
申请号：US11265187
申请日：2005-11-03
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/42123 , G05B2219/42275
摘要： A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied outside. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting a force produced by the die cushion mechanism; a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section and a force detected value detected by the force detecting section; and an abnormality preventing section for preventing, in association with a control state of the servo-motor, the die cushion mechanism from producing an abnormal force.
摘要翻译： 一种用于控制模具缓冲机构的控制装置，其包括作为驱动源的伺服电动机，并产生适于施加到外部的力。 控制装置包括用于指示由模具缓冲机构产生的力的力指令部分; 用于检测由模具缓冲机构产生的力的力检测部分; 力控制部，其基于由所述力指令部所指示的力指令值和由所述力检测部检测到的力检测值，对所述伺服电动机进行力控制; 以及防止与伺服电动机的控制状态相关联的模具缓冲机构产生异常力的异常防止部。
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公开(公告)号：US07368887B2
公开(公告)日：2008-05-06
申请号：US11356291
申请日：2006-02-17
IPC分类号： G05B11/32
CPC分类号： G05B19/406 , G05B2219/35292 , G05B2219/35338 , G05B2219/37078 , G05B2219/37619
摘要： A servo control device that displays, by a two-dimensional image, evaluation of control precision of a servo system, includes: an instruction unit that instructs a position instruction having periodicity; a unit that records a track of position data based on a position feedback of a servo system according to the position instruction; and a first drawing unit that draws position data based on the position feedback, data before a quarter cycle or after a quarter cycle of the position data or position data based on the position instruction before a quarter cycle or after a quarter cycle, on a two-dimensional plane including orthogonal two axes, as the axis data of the orthogonal two axes respectively.
摘要翻译： 一种通过二维图像显示伺服系统的控制精度的评估的伺服控制装置包括：指示具有周期性的位置指令的指令单元; 根据位置指令，基于伺服系统的位置反馈来记录位置数据的轨迹的单元; 以及第一绘图单元，其基于位置反馈，在四分之一周期之前的数据或基于在四分之一周期之前或四分之一周期之后的位置指令的位置数据或位置数据的四分之一周期之后的位置数据 包括正交两轴的三维平面分别作为正交两轴的轴数据。
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28.发明申请公开(公告)号：US20080066515A1
公开(公告)日：2008-03-20
申请号：US11857620
申请日：2007-09-19
IPC分类号： B21D22/00
CPC分类号： B21D24/02 , G05B19/237 , G05B2219/41251 , G05B2219/45143
摘要： A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion disposed opposite to a slide in a press machine. The method includes: obtaining a difference between a displacement of the slide and a displacement of the die cushion in a state in which the slide and the die cushion collide with and are exerting force on each other; detecting the force when the difference of the displacements is obtained; calculating a spring constant of a structural portion based on a proportionality between the difference of the displacements and the force, when regarding the structural portion including the slide and the die cushion as an elastic structure; and changing the force control gain based on the spring constant using a fixed proportionality that exists between the force control gain and a reciprocal of the spring constant.
摘要翻译： 一种用于在执行对在压机中与滑块相对设置的模座的驱动伺服电动机的力控制的控制电路中，改变表示为力误差与速度指令值的比的力控制增益的方法。 该方法包括：在滑块和模座碰撞并且彼此施加力的状态下，获得滑块的位移和模具垫的位移之间的差异; 当获得位移的差异时检测力; 当关于包括滑动件和模具衬垫的结构部分作为弹性结构时，基于位移的差异和力之间的比例来计算结构部分的弹簧常数; 并且使用存在于力控制增益和弹簧常数的倒数之间的固定比例度，基于弹簧常数来改变力控制增益。
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公开(公告)号：US20070205738A1
公开(公告)日：2007-09-06
申请号：US11699582
申请日：2007-01-30
申请人： Yasusuke Iwashita , Kazuomi Maeda , Yukio Toyozawa
发明人： Yasusuke Iwashita , Kazuomi Maeda , Yukio Toyozawa
IPC分类号： B25J9/16
CPC分类号： G05B19/404 , G05B2219/41036 , G05B2219/41059 , G05B2219/41077
摘要： A controller including a learning control unit for determining learning data based on a positional deviation between a target-position command commanding superimposed-type motion including repetitive motion and a positional fed-back variable obtained from an output portion of an electric motor; and an operation control section for controlling the electric motor based on a corrected positional deviation. The learning control unit includes a first learning section for periodically determining, based on the positional deviation, and storing, first learning data according to a first learning period; a learning-data correcting section for correcting the first learning data to eliminate an influence of a local change included in the target-position command or the positional fed-back variable and periodically arising according to a period different from the first learning period; and a positional-deviation correcting section for correcting the positional deviation by using corrected learning data.
摘要翻译： 一种控制器，包括：学习控制单元，用于基于指示重复运动的重叠型运动的目标位置命令与从电动机的输出部获得的位置反馈变量之间的位置偏差确定学习数据; 以及操作控制部分，用于基于校正的位置偏差来控制电动机。 学习控制单元包括：第一学习部分，用于基于位置偏差周期性地确定并存储根据第一学习周期的第一学习数据; 学习数据校正部分，用于校正第一学习数据以消除包括在目标位置命令或位置反馈变量中的局部变化的影响，并且周期性地根据与第一学习周期不同的周期出现; 以及位置偏差校正部分，用于通过使用校正的学习数据来校正位置偏差。
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30.发明申请公开(公告)号：US20060090656A1
公开(公告)日：2006-05-04
申请号：US11265078
申请日：2005-11-03
IPC分类号： B30B15/26
CPC分类号： G05B19/19 , B21D24/02 , G05B2219/41139 , G05B2219/42087 , G05B2219/45131
摘要： A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting the force produced by the die cushion mechanism; a motor-speed detecting section for detecting an operating speed of the servo-motor; a slide-speed detecting section for detecting a moving speed of the slide; and a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section, a force detected value detected by the force detecting section, a motor-speed detected value detected by the motor-speed detecting section and a slide-speed detected value detected by the slide-speed detecting section.
摘要翻译： 一种用于控制模具缓冲机构的控制装置，其包括作为驱动源的伺服电动机，并且产生适于施加到冲压机中的滑块的力。 控制装置包括用于指示由模具缓冲机构产生的力的力指令部分; 用于检测由模具缓冲机构产生的力的力检测部分; 电动机速度检测部，用于检测伺服电动机的运转速度; 用于检测滑块的移动速度的滑块速度检测部分; 以及力控制部，其基于由所述力指令部指定的力指令值，由所述力检测部检测到的力检测值，对所述伺服电动机进行力控制，由所述电动机检测出的电动机速度检测值 速度检测部和由滑动速度检测部检测到的滑动速度检测值。
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