专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08415906B2 Motor driving apparatus 有权
标题翻译：电机驱动装置
公开(公告)号：US08415906B2
公开(公告)日：2013-04-09
申请号：US13215499
申请日：2011-08-23
申请人： Yasusuke Iwashita , Masakazu Niwa , Takashi Harada , Koujirou Sakai , Shinichi Horikoshi
发明人： Yasusuke Iwashita , Masakazu Niwa , Takashi Harada , Koujirou Sakai , Shinichi Horikoshi
IPC分类号： H02P3/14 , H02P3/18
CPC分类号： H02M5/4585 , H02P3/14 , H02P6/085 , H02P6/28 , H02P7/281
摘要： When the output of motor reaches or exceeds a predetermined value during acceleration of the motor, the control target value of the DC link voltage which is the voltage of a power storage device is gradually lowered in corresponding relationship to the motor output. When the motor enters a constant speed control mode, the DC link control target value is maintained at a constant level. When the motor enters a deceleration control mode, the DC link control target value is gradually raised in corresponding relationship to the motor output, and regenerative power is recovered by the power storage device and reused in the next control cycle.
摘要翻译：当电动机的加速期间电动机的输出达到或超过预定值时，作为蓄电装置的电压的直流母线电压的控制目标值与电动机输出相对应地逐渐降低。当电机进入恒速控制模式时，直流链路控制目标值保持恒定。当电动机进入减速控制模式时，直流母线控制目标值与电动机输出相对应地逐渐升高，再生电力由蓄电装置恢复并在下一个控制周期中重新使用。

22. 发明授权

US07719218B2 Motor control apparatus 有权
标题翻译：电机控制装置
公开(公告)号：US07719218B2
公开(公告)日：2010-05-18
申请号：US11873653
申请日：2007-10-17
申请人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Geng Li
发明人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa , Geng Li
IPC分类号： H02P7/00
CPC分类号： G05B19/4065 , B23Q17/09 , G05B2219/37228 , G05B2219/37246 , G05B2219/37256 , G05B2219/42295 , G05B2219/42304
摘要： A motor control apparatus for computing or outputting motor load information, comprises: a storage unit which stores a function or table obtained in advance based on parameters used for the computation of the load information and on an actually measured value of a motor output or motor torque; and a load meter computing unit which computes the load information from the function or table stored in the storage unit by using the parameters used for the computation of the load information. With the above configuration, the load meter is computed in such a manner as to accurately indicate the load condition of a motor in real time over the entire speed range of the motor including the nonlinear control region of the motor, and the motor is controlled using the thus computed value or the computed value is displayed on a display unit.
摘要翻译：一种用于计算或输出电动机负载信息的电动机控制装置，包括：存储单元，其基于用于负载信息的计算的参数和电动机输出或电动机转矩的实际测量值来存储预先获得的功能或表 ; 以及负载表计算单元，其通过使用用于计算负载信息的参数，从存储在存储单元中的功能或表计算负载信息。通过上述结构，计算负载计量器，以便在包括电动机的非线性控制区域的电动机的整个速度范围内实时准确地指示电动机的负载状态，并且使用这样计算的值或计算值被显示在显示单元上。

23. 发明申请

US20060186849A1 Servo control device and method of adjusting servo system 有权
标题翻译：伺服控制装置及伺服系统调整方法
公开(公告)号：US20060186849A1
公开(公告)日：2006-08-24
申请号：US11356291
申请日：2006-02-17
申请人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa
发明人： Yasusuke Iwashita , Takahiro Akiyama , Masakazu Niwa
IPC分类号： G05B19/33
CPC分类号： G05B19/406 , G05B2219/35292 , G05B2219/35338 , G05B2219/37078 , G05B2219/37619
摘要： The invention relates to a numerical control (NC) device, and provides a servo control device that displays, by a two-dimensional image, evaluation of control precision of a servo system, and that can adjust the servo system according to a visual method, and provides a method of adjusting the servo system. The control device 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：本发明涉及一种数控装置，提供一种伺服控制装置，其通过二维图像显示伺服系统的控制精度的评价，并且可以根据目视方式调整伺服系统，并提供一种调整伺服系统的方法。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。

24. 发明授权

US08410744B2 Motor driving apparatus 有权
标题翻译：电机驱动装置
公开(公告)号：US08410744B2
公开(公告)日：2013-04-02
申请号：US13215563
申请日：2011-08-23
申请人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Masakazu Niwa , Koujirou Sakai
发明人： Yasusuke Iwashita , Shinichi Horikoshi , Takashi Harada , Masakazu Niwa , Koujirou Sakai
IPC分类号： H02P27/04
CPC分类号： H02P3/18 , H02P3/14 , H02P23/20
摘要： During motor acceleration control period that starts at time T1, if power supply output or supply current exceeds a predetermined level at time T2, PWM control in a PWM converter is turned off until a deceleration control period of T3 to T4 ends. As a result, DC link voltage (voltage of a power storage device) at the start of the deceleration control at time T3 drops to provide space for storing regenerative power; since the PWM control in the PWM converter is off during the deceleration control period, the regenerative power can be stored into the power storage device and reused in the next control cycle.
摘要翻译：在时刻T1开始的电动机加速控制期间，如果电力供应输出或电源电流在时间T2超过预定电平，则PWM转换器中的PWM控制被截止，直到T3至T4的减速控制周期结束。结果，在时刻T3的减速控制开始时的直流链路电压（蓄电装置的电压）下降，提供存储再生电力的空间; 由于PWM转换器中的PWM控制在减速控制期间关闭，所以再生功率可以存储到蓄电装置中并在下一个控制周期中重新使用。

25. 发明授权

US07956568B2 Servo motor controller 有权
标题翻译：伺服电机控制器
公开(公告)号：US07956568B2
公开(公告)日：2011-06-07
申请号：US12329062
申请日：2008-12-05
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Yuuya Ueno
IPC分类号： G05D23/275
CPC分类号： H02P7/2855 , H02P23/16 , H02P29/00
摘要： A servo motor controller having: a frequency identification section that performs analysis based on a frequency response method and identifies the frequency of a disturbance exhibiting a specified phase lag; an input/output gain identification section that identifies the input/output gain at the frequency identified by the frequency identification section; and a magnification factor resetting section that resets an adjustment magnification factor by performing a specified operation on a ratio between the identified input/output gain and a specified target value of the input/output gain.
摘要翻译：一种伺服电动机控制器，具有：频率识别部，其基于频率响应方式进行分析，并识别表现出规定的相位滞后的干扰的频率; 输入/输出增益识别部分，其识别由频率识别部分识别的频率处的输入/输出增益; 以及放大倍率复位部，其通过对所识别的输入/输出增益与输入/输出增益的指定目标值之间的比率执行指定的操作来重置调整放大系数。

26. 发明授权

US07757526B2 Method for changing force control gain and die cushion control apparatus 有权
标题翻译：改变力控制增益和模具缓冲控制装置的方法
公开(公告)号：US07757526B2
公开(公告)日：2010-07-20
申请号：US11857620
申请日：2007-09-19
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21C51/00
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。

27. 发明申请

US20090174349A1 MOTOR DRIVE APPARATUS EQUIPPED WITH DYNAMIC BRAKING CIRCUIT FAULT DETECTION CAPABILITY 有权
标题翻译：装有动态制动电路的电机驱动装置故障检测能力
公开(公告)号：US20090174349A1
公开(公告)日：2009-07-09
申请号：US12324972
申请日：2008-11-28
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Kenichi Takayama
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Kenichi Takayama
IPC分类号： H02P6/24 , H02P3/12
CPC分类号： H02P3/18 , G01R31/024
摘要： A motor drive apparatus 1 having a dynamic braking circuit 5 for producing a deceleration torque utilizing a braking force caused by a synchronous motor 4 acting as a generator when the synchronous motor 4 is deenergized, is equipped with a dynamic braking circuit fault detection capability, and comprises: a DC power supply 2 which is obtained by rectifying input AC power; voltage application means 2, 3, 10, 11 for applying a voltage to the windings of the synchronous motor 4 and to the dynamic braking circuit 5 for a predetermined length of time by switching power transistors A to F connected to the DC power supply 2; current detection means 6 for detecting the value of a current flowing from the power transistors A to F; and fault checking means 11 for checking the dynamic braking circuit 5 for the presence or absence of a fault, based on the current value detected by the current detection means 6 and on a predefined threshold value. With this configuration, detection of faults in the dynamic braking circuit is accomplished without requiring the addition of a contact signal or a control circuit.
摘要翻译：具有动力制动电路5的电动机驱动装置1配备动态制动电路故障检测能力，该动力制动电路5利用在同步电动机4断电时作为发电机的同步电动机4产生的制动力产生减速转矩，包括：通过整流输入AC电力获得的直流电源2; 通过连接到直流电源2的功率晶体管A至F将电压施加到同步电动机4的绕组和动态制动电路5达预定时间长度的电压施加装置2,3,10,11; 用于检测从功率晶体管A到F的电流值的电流检测装置6; 以及用于根据由电流检测装置6检测到的电流值和预定义的阈值来检查动态制动电路5是否存在故障的故障检查装置11。利用这种配置，可以在不需要添加接触信号或控制电路的情况下实现动态制动电路中的故障的检测。

28. 发明授权

US07461530B2 Die cushion mechanism, and apparatus and method for controlling the same 有权
标题翻译：模具缓冲机构及其控制装置及方法
公开(公告)号：US07461530B2
公开(公告)日：2008-12-09
申请号：US11265078
申请日：2005-11-03
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21C51/00
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。

29. 发明授权

US07401492B2 Control device for a die cushion mechanism 有权
标题翻译：模具缓冲机构的控制装置
公开(公告)号：US07401492B2
公开(公告)日：2008-07-22
申请号：US11470510
申请日：2006-09-06
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
IPC分类号： B21J9/18
CPC分类号： G05B19/416 , B21D24/02 , G05B2219/41251 , G05B2219/45131
摘要： A control device (10) for a die cushion mechanism that produces a force for a slide (24) in a press machine, comprising slide velocity command-forming means (61) for forming a velocity command for the slide (24), die cushion velocity command-forming means (62) for forming a velocity command for said die cushion (20), and velocity relation calculation means (65) for calculating a velocity relation between the velocity of the slide and the velocity of the die cushion based on a rate of increase (dF) in the force produced between the slide and the die cushion immediately after the collision of the slide with the die cushion. The cushion velocity command-forming means forms the velocity command for the die cushion based upon the slide velocity command formed by the slide velocity command-forming means and upon the velocity relation calculated by the velocity relation-calculation means. This makes it possible to form an optimum velocity command for the slide and/or the die cushion.
摘要翻译：一种用于在冲压机中产生滑块（24）的力的冲模缓冲机构的控制装置（10），包括用于形成用于滑块（24）的速度指令的滑动速度指令形成装置（61）用于形成用于所述模具衬垫（20）的速度指令的速度指令形成装置（62），以及速度关系计算装置（65），用于计算滑块的速度和模具缓冲垫的速度之间的速度关系在滑块与模具座碰撞之后立即在滑块和模具垫之间产生的力的增加速度（dF）。缓冲速度指令形成装置基于由滑动速度指令形成装置形成的滑动速度指令和由速度关系计算装置计算出的速度关系，形成模具缓冲器的速度指令。这使得可以形成用于滑动件和/或模具衬垫的最佳速度命令。

30. 发明授权

US07170256B2 Motor control device 有权
标题翻译：电机控制装置
公开(公告)号：US07170256B2
公开(公告)日：2007-01-30
申请号：US11167254
申请日：2005-06-28
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroshi Kougami
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroshi Kougami
IPC分类号： H02P1/54 , H02K21/00
CPC分类号： H02P29/026 , H02P6/153 , H02P21/0089 , H02P21/22 , H02P25/03
摘要： In the control of a synchronous motor having a permanent magnet, an alternating current power supply voltage that is input to a power amplifier or a direct current link voltage of which input voltage is rectified is measured. A reactive current (a d-axis current) or a current control phase advance is changed, according to this power supply voltage. With this arrangement, reactive current control or current phase control can be carried out directly according to a change in the input power supply voltage. A motor control device includes a voltage measuring unit that measures a voltage supplied to a driving amplifier, and a current control unit that controls a current passed to a synchronous motor based on the measured voltage. The voltage measuring unit measures a voltage supplied to the amplifier. The current control unit controls a current that is passed to the synchronous motor, according to the measured voltage. As a result, the motor control device can directly control the current according to a change in the input power supply voltage to the motor.
摘要翻译：在具有永磁体的同步电动机的控制中，测量输入到功率放大器的交流电源电压或输入电压整流的直流电压电压。根据该电源电压，改变无功电流（d轴电流）或电流控制相位前进。通过这种布置，可以根据输入电源电压的变化直接进行无功电流控制或电流相位控制。电动机控制装置包括：电压测量单元，其测量提供给驱动放大器的电压;以及电流控制单元，其基于所测量的电压来控制传递到同步电动机的电流。电压测量单元测量提供给放大器的电压。电流控制单元根据测得的电压控制传递给同步电动机的电流。结果，马达控制装置可以根据对马达的输入电源电压的变化直接控制电流。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式