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1. 发明授权

US11175647B2 Motor controller 有权
公开(公告)号：US11175647B2
公开(公告)日：2021-11-16
申请号：US16004639
申请日：2018-06-11
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka , Kazunori Iijima
IPC分类号： G05B19/416
摘要： A controller of a motor that drives a driven body includes: an inertia estimating unit that estimates inertia on the basis of feedback information (torque and current) of the motor; a computing unit that computes an acceleration or deceleration time constant of the motor from the estimation inertia estimated by the inertia estimating unit; a storage unit that stores an inertia difference which is a difference between the estimation inertia and at least one known actual inertia and a time constant difference which is a difference between an actual acceleration or deceleration time constant corresponding to the actual inertia and an acceleration or deceleration time constant calculated on the basis of the estimation inertia; and a correction unit that corrects the acceleration or deceleration time constant calculated by the computing unit using the inertia difference and the time constant difference stored in the storage unit.

2. 发明授权

US11387745B2 Rectifier and motor control apparatus having power regeneration function 有权
公开(公告)号：US11387745B2
公开(公告)日：2022-07-12
申请号：US17114704
申请日：2020-12-08
申请人： Fanuc Corporation
发明人： Eijun Murai , Shunpei Tanaka , Shinichi Horikoshi
IPC分类号： H02P27/08 , H02P27/06 , H02M7/219
摘要： The rectifier includes: a main circuit unit configured to perform power conversion between AC power on a side of a three-phase AC power supply and DC power on a DC side by rectifying operation of a rectifying device and ON-OFF operation of a switching device; a power calculation unit configured to calculate a value of a power flowing between the side of the three-phase AC power supply and the DC side via the main circuit unit; and a control unit configured to perform control to execute the ON-OFF operation of the switching device, wherein the control unit changes a length of an ON period per cycle in the ON-OFF operation executed on the switching device according to the value of the power calculated by the power calculation unit.

3. 发明授权

US10666184B2 Machine tool controller 有权
公开(公告)号：US10666184B2
公开(公告)日：2020-05-26
申请号：US16269027
申请日：2019-02-06
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka
IPC分类号： G05B11/01 , H02P29/024 , G05B19/406
摘要： A machine tool controller capable of identifying the factors of a warning easily is provided. A controller of a machine tool includes a power supply monitoring unit, a power supply abnormality detecting unit, and an abnormality diagnosis unit. The power supply monitoring unit acquires measurements indicating an operating state of a machine tool and/or a peripheral device (for example, an AC power supply or a motor) of the machine tool. The power supply abnormality detecting unit detects an abnormality in the operating state of the machine tool and/or the peripheral device and outputs a signal indicating the abnormality and the measurements obtained when the abnormality was detected. The abnormality diagnosis unit automatically selects a measurement related to the abnormality among the measurements and automatically diagnoses factors of the abnormality.

4. 发明授权

US10630225B2 Machine tool controller 有权
公开(公告)号：US10630225B2
公开(公告)日：2020-04-21
申请号：US16269027
申请日：2019-02-06
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka
IPC分类号： G05B11/01 , H02P29/024 , G05B19/406
摘要： A machine tool controller capable of identifying the factors of a warning easily is provided. A controller of a machine tool includes a power supply monitoring unit, a power supply abnormality detecting unit, and an abnormality diagnosis unit. The power supply monitoring unit acquires measurements indicating an operating state of a machine tool and/or a peripheral device (for example, an AC power supply or a motor) of the machine tool. The power supply abnormality detecting unit detects an abnormality in the operating state of the machine tool and/or the peripheral device and outputs a signal indicating the abnormality and the measurements obtained when the abnormality was detected. The abnormality diagnosis unit automatically selects a measurement related to the abnormality among the measurements and automatically diagnoses factors of the abnormality.

5. 发明授权

US10502563B2 Measurement device 有权
公开(公告)号：US10502563B2
公开(公告)日：2019-12-10
申请号：US15952655
申请日：2018-04-13
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka , Kazunori Iijima
IPC分类号： G01B1/00 , G01B17/08 , G01B17/06 , G01S7/521 , G01S15/88 , G01S7/539 , G01S15/00
CPC分类号： G01B17/08 , G01B17/06 , G01S7/521 , G01S7/539 , G01S15/88 , G01S15/003
摘要： A measurement device comprises: an ultrasonic vibrator that emits an ultrasonic wave to a measurement target; an acoustic lens; a sound-receiving element unit; an A/D converter array; a calculator connected to the A/D converter array; and a driving mechanism that makes the measurement target movable or tiltable relative to the ultrasonic vibrator. The calculator stores information in chronological order acquired by the sound-receiving element unit through scanning irradiation with the ultrasonic wave, converts the information stored in chronological order to space information, and acquires an acoustic intensity distribution.

6. 发明授权

US10353375B2 Machine tool controller with power supply voltage abnormality detection 有权
公开(公告)号：US10353375B2
公开(公告)日：2019-07-16
申请号：US15623378
申请日：2017-06-15
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka
IPC分类号： G05B19/406 , B23Q5/58
摘要： A machine tool controller includes: a voltage detection unit which detects a voltage value of an input power supply; a time measurement unit which measures an occurrence time and a duration time when a voltage drop state occurs with respect to the voltage value; an abnormality determination unit which determines whether a low voltage abnormality or a power failure occurs with respect to the input power supply based on the voltage value and the duration time of the voltage drop state; a machining management unit which acquires a machining condition command and machining information of the machine tool; and a storage unit which stores the voltage value detected by the voltage detection unit, the occurrence time of the voltage drop state measured by the time measurement unit, and the machining information when the abnormality determination unit determines that the low voltage abnormality occurs with respect to the input power supply.

7. 发明授权

US10298167B2 Motor controller having function of determining power failure detection condition 有权
公开(公告)号：US10298167B2
公开(公告)日：2019-05-21
申请号：US15458084
申请日：2017-03-14
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka , Kenta Yamamoto
IPC分类号： H02P29/024 , H02P27/06 , H02H1/00
摘要： A motor controller includes a rectifier for converting AC power supplied from an AC power supply into DC power and outputting the DC power; an AC voltage detector for detecting an AC voltage value of the AC power supply and outputting the AC voltage value as a detection value; a power failure detector for determining that a power failure is occurring, when a state in which the outputted detection value is equal to or lower than a regulation voltage has continued for a regulation time or more; and a power failure detection condition determiner for determining or modifying the regulation time.

8. 发明授权

US11126149B2 Control parameter adjusting device and adjusting method using machine learning 有权
公开(公告)号：US11126149B2
公开(公告)日：2021-09-21
申请号：US16286982
申请日：2019-02-27
申请人： FANUC CORPORATION
发明人： Ryoutarou Tsuneki , Shunpei Tanaka
IPC分类号： G05B19/4155 , G05B13/02
摘要： To provide an adjusting device and an adjusting method for appropriately controlling the machine learning reduced in cost with respect to calculation load and learning period of time in the case where an evaluation program for machine learning is used separately from a machining program and the like. The present invention includes a feedback information acquiring part configured to acquire, from a control device, feedback information obtained when an evaluation program including various types of learning elements is executed in the control device, a determination part configured to determine which learning element the acquired feedback information corresponds to among the various types of learning elements, a feedback information transmitting part configured to transmit the acquired feedback information to a machine learning part corresponding to the learning element, a parameter setting information acquiring part configured to acquire control parameter setting information obtained through machine learning by use of the feedback information, and a parameter setting information transmitting part configured to transmit the acquired control parameter setting information to the control device.

9. 发明申请

US20210175818A1 RECTIFIER AND MOTOR CONTROL APPARATUS HAVING POWER REGENERATION FUNCTION 有权
公开(公告)号：US20210175818A1
公开(公告)日：2021-06-10
申请号：US17114704
申请日：2020-12-08
申请人： Fanuc Corporation
发明人： Eijun Murai , Shunpei Tanaka , Shinichi Horikoshi
IPC分类号： H02M7/219 , H02P27/08
摘要： The rectifier includes: a main circuit unit configured to perform power conversion between AC power on a side of a three-phase AC power supply and DC power on a DC side by rectifying operation of a rectifying device and ON-OFF operation of a switching device; a power calculation unit configured to calculate a value of a power flowing between the side of the three-phase AC power supply and the DC side via the main circuit unit; and a control unit configured to perform control to execute the ON-OFF operation of the switching device, wherein the control unit changes a length of an ON period per cycle in the ON-OFF operation executed on the switching device according to the value of the power calculated by the power calculation unit.

10. 发明授权

US10148214B2 Motor control device having multiple power failure detection sensitivities 有权
公开(公告)号：US10148214B2
公开(公告)日：2018-12-04
申请号：US15466994
申请日：2017-03-23
申请人： FANUC CORPORATION
发明人： Shunpei Tanaka , Kenta Yamamoto
IPC分类号： H02P29/00 , H02P29/024 , H02P6/14 , H02P27/08
摘要： A motor control device includes: a rectifier that converts AC power supplied from an AC power supply side into DC power and outputs the DC power; an inverter that converts the DC power output from the rectifier into AC power for motor driving and outputs the AC power; an AC voltage detection unit that detects an AC voltage value of an AC power supply side of the rectifier; and a power failure detection unit that outputs, based on the AC voltage value detected by the AC voltage detection unit, several power failure detection signals in accordance with a predetermined power failure detection condition at a power failure on the AC power supply side of the rectifier.

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