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41. 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。

42. 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。

43. 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。

44. 发明授权

US07248014B2 Motor control system 失效
标题翻译：电机控制系统
公开(公告)号：US07248014B2
公开(公告)日：2007-07-24
申请号：US10461331
申请日：2003-06-16
申请人： Eiji Genma , Yasusuke Iwashita , Hiroyuki Kawamura
发明人： Eiji Genma , Yasusuke Iwashita , Hiroyuki Kawamura
IPC分类号： G05B1/00
CPC分类号： G05B19/19
摘要： A motor control system capable of securing stability and rapidity of motion even in a machine where the stability varies in accordance with a position of a driven member. The driven member and a motor for driving the driven member are operatively connected through a transmission mechanism including a nonlinear element such that a rate of change of the position of the driven member with respect to the position of the motor varies in dependence on the position of the motor. Optimum values of multiplier factors of operation constants with respect to the position of the driven member or the rotational position of the motor for the position control and the velocity control are stored in a data table. The values of the multiplier factors of the operation constants for a present position of the driven member or a present position of the motor are determined using the data table and the determined values of the multiplier factors are multiplied by reference operation constants to update the operation constants. The position and/or velocity control processing is performed using the updated optimum operation constants in accordance with the present position of the driven member or the present rotational position of the motor.
摘要翻译：一种电机控制系统，即使在稳定性根据被驱动构件的位置而变化的机器中，也能够确保运动的稳定性和快速性。从动构件和用于驱动从动构件的电动机通过包括非线性元件的传动机构可操作地连接，使得从动构件相对于电动机位置的位置的变化率根据电机。相对于从动构件的位置的操作常数的乘数因子或用于位置控制的电机的旋转位置和速度控制的最佳值存储在数据表中。使用数据表确定从动构件的当前位置的操作常数的乘数因子或电动机的当前位置的值，并将乘数因子的确定值乘以参考运算常数以更新运算常数。根据从动构件的当前位置或电动机的当前旋转位置，使用更新的最佳操作常数来执行位置和/或速度控制处理。

45. 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。

46. 发明申请

US20070006632A1 Die cushion mechanism, and device 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：US20070006632A1
公开(公告)日：2007-01-11
申请号：US11478633
申请日：2006-07-03
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： B21D24/10
CPC分类号： B21D24/02 , G05B19/416 , G05B2219/42087 , G05B2219/45137
摘要： A device 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 device includes a section for commanding a force to be produced by the die cushion mechanism; a section for detecting a force produced by the die cushion mechanism and applied to the slide; a section for detecting a moving speed of the slide; and a section for executing a force control on the servo-motor. The force controlling section executes force controls in mutually different modes on the servo-motor, through mutually different control loops, one mode being provided for an initial stage defined from an instant when the die cushion mechanism starts producing the force to be applied to the slide until a predetermined subsequent instant, and another mode being provided for a succeeding stage defined after the predetermined subsequent instant, by using at least a slide-speed detected value detected by the slide-speed detecting section. The force controlling section includes a section for preparing a first speed-command value to be commanded to the servo-motor in the initial stage and a second speed-command value, different from the first speed-command value, to be commanded to the servo-motor in the succeeding stage
摘要翻译：一种用于控制模具缓冲机构的装置，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。该装置包括用于指示由模具缓冲机构产生的力的部分; 用于检测由所述模具缓冲机构产生并施加到所述滑块的力的部分; 用于检测滑块的移动速度的部分; 以及用于在伺服电动机上执行力控制的部分。力控制部通过相互不同的控制回路在伺服电动机上以相互不同的模式执行力控制，一个模式被提供用于从模具缓冲机构开始产生施加到滑块的力的时刻开始的初始阶段直到预定的后续时刻，并且通过至少使用由滑动速度检测部检测到的滑动速度检测值，为在预定的后续时刻之后定义的后续阶段提供另一模式。力控制部包括用于准备要在初始阶段对伺服电动机指令的第一速度指令值和与第一速度指令值不同的第二速度指令值的部分，以指令伺服在接下来的阶段

47. 发明申请

US20070006631A1 Control device for press machine 有权
标题翻译：冲压机控制装置
公开(公告)号：US20070006631A1
公开(公告)日：2007-01-11
申请号：US11477345
申请日：2006-06-30
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： B21D24/00
CPC分类号： B21D24/02
摘要： A control device for a press machine, by which one of the slide and the die cushion is suitably controlled, when a malfunction occurs in the other, such that the force between the slide and the die cushion does not excessively increase. The control device includes a slide control part for controlling the motion of the slide and a die cushion control part for controlling the motion of the die cushion. A first transmitter transmits an abnormal signal from the die cushion control part to the slide control part when a first detector detects a malfunction of the die cushion. The slide control part is configured to move the slide, when receiving the abnormal signal, such that the slide is away from the position of the die cushion at the time of receiving the abnormal signal by a certain distance and, to stop the slide.
摘要翻译：一种用于压力机的控制装置，当另一个故障发生时，滑块和模座中的一个被适当地控制，使得滑块和模座之间的力不会过大地增加。控制装置包括用于控制滑块的运动的滑动控制部件和用于控制模具缓冲垫运动的模具缓冲控制部件。当第一检测器检测到模具垫的故障时，第一发送器将来自模具缓冲控制部件的异常信号发送到滑动控制部件。滑动控制部被配置为当接收到异常信号时使滑块移动，使得在接收异常信号一定距离时滑块远离模具座的位置，并停止滑动。

48. 发明申请

US20060158143A1 Controller 有权
标题翻译：控制器
公开(公告)号：US20060158143A1
公开(公告)日：2006-07-20
申请号：US11328086
申请日：2006-01-10
申请人： Tadashi Okita , Yasusuke Iwashita , Satoshi Ikai , Hiroyuki Kawamura
发明人： Tadashi Okita , Yasusuke Iwashita , Satoshi Ikai , Hiroyuki Kawamura
IPC分类号： H02P5/00
CPC分类号： G05B19/358 , G05B2219/37297
摘要： First and second acceleration detection means are attached to first and second sections on a driven body, and values of accelerations α1 and α2 in travel direction of the driven body are detected. On the basis of the difference or sum of the acceleration values α1 and α2, at least one of a position command, speed command, or current command for performing drive control of the driven body is corrected.
摘要翻译：第一加速度检测装置和第二加速度检测装置附接到从动体上的第一和第二部分，并且检测从动体的行进方向上的加速度α1和α2的值。基于加速度值α1和α2的差或之和，校正用于执行从动体的驱动控制的位置指令，速度指令或电流指令中的至少一个。

49. 发明申请

US20060012326A1 Servo motor control unit for press-forming machine 有权
公开(公告)号：US20060012326A1
公开(公告)日：2006-01-19
申请号：US11167203
申请日：2005-06-28
申请人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
发明人： Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura
IPC分类号： G05D16/00
CPC分类号： G05B19/416 , B30B15/0094 , B30B15/148 , G05B2219/41202 , G05B2219/42087 , G05B2219/42092
摘要： A servo motor for driving a die is provided with position and speed detectors. Further, a pressure sensor for detecting the pressure applied to a workpiece is provided. In the servo motor control unit, the smaller one of the speed command obtained by feedback control of the position and the speed command obtained by the pressure feedback control is selected as an output of a comparator. Based on the speed command output from the comparator, feedback control of the speed is performed and the servo motor is driven. In the state where the die does not press against the workpiece, a pressure error is large, the speed command by pressure control becomes large, and the speed command by position control becomes small. Therefore, position control is performed. When the workpiece is pressed, the position error increases, and the pressure error decreases, a speed command by pressure control is employed and pressure control is performed.

50. 发明申请

US20050168186A1 Servomotor control device for robot and robot having the device 审中-公开
标题翻译：具有该装置的机器人和机器人的伺服电动机控制装置
公开(公告)号：US20050168186A1
公开(公告)日：2005-08-04
申请号：US11049080
申请日：2005-02-03
申请人： Shunsuke Matsubara , Yasusuke Iwashita , Tetsuaki Kato
发明人： Shunsuke Matsubara , Yasusuke Iwashita , Tetsuaki Kato
IPC分类号： B25J9/10 , H02P6/06 , H02P21/00 , H02P27/04 , H02P7/00
CPC分类号： H02P21/22
摘要： A servomotor control device for a robot which can adjust the characteristics of maximum torque and/or continuous rated output of the servomotor and a robot with easy maintenance. The robot is commanded to execute one cycle of taught motion. During the cycle, a maximum torque required for the servomotor is calculated by a torque command or the like. When the maximum torque lacks, a field weakening current correction value is increased for increasing d-phase current and the maximum torque. Further, lack of continuous rated output may be judged by detected temperature of the servomotor. When a lack of continuous rated output occurs, the correction value is decreased to decrease the d-phase current so as to adjust the characteristic of continuous rated output. Although the servomotors have the same specification, the characteristic of each of the servomotors may be optimized corresponding to the axis by adjusting the field weakening current (or the d-phase current). As the hardware such as the control devices have the same specification, manufacture, maintenance and control of the robot may become easier.
摘要翻译：一种用于机器人的伺服电机控制装置，其可以调节伺服电动机的最大扭矩和/或连续额定输出的特性以及容易维护的机器人。命令机器人执行教学动作的一个循环。在该循环期间，通过转矩指令等计算伺服电动机所需的最大转矩。当最大扭矩不足时，为减小d相电流和最大转矩而增大磁场弱化电流校正值。此外，通过伺服电动机的检测温度可以判断缺乏连续的额定输出。当发生缺乏连续额定输出时，减小校正值以减小d相电流，从而调整连续额定输出的特性。虽然伺服电机具有相同的规格，但是可以通过调节弱磁电流（或d相电流）来对应于轴线来优化每个伺服电动机的特性。由于诸如控制装置的硬件具有相同的规格，所以机器人的制造，维护和控制可能变得更容易。

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