Patents by Inventor Hidetoshi Ikeda
Hidetoshi Ikeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20190086900Abstract: A servo control device controls a combined position of a first servo system and a second servo system having higher response than response of the first servo system. The servo control device includes a first axis target value creation unit and a correction unit. The first axis target value creation unit creates a first axis target value based on a combined command value which is a position command value of the combined position. The correction unit converts the first axis target value into a first axis command value by using a first transfer function. In addition, the correction unit converts the first axis target value by using a second transfer function, and calculates a second axis command value by subtracting the converted first axis target value from the combined command value.Type: ApplicationFiled: February 15, 2017Publication date: March 21, 2019Applicant: Mitsubishi Electric CorporationInventors: Kenta FUJII, Hidetoshi IKEDA, Teruaki FUKUOKA
-
Publication number: 20190047810Abstract: An image reading device includes a magnetizer that magnetizes a metal object attached to a document, a magnetism detector that is disposed on the downstream side of the magnetizer in a document transport direction from a document stacking table toward the document transport path and detects residual magnetism of the metal object, and a metal object accompaniment determination unit that determines whether or not the metal object is attached to the document based on a detection result by the magnetism detector.Type: ApplicationFiled: March 3, 2017Publication date: February 14, 2019Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hirotsugu FUSAYASU, Ryo MATSUBARA, Hidetoshi IKEDA, Genki TOKUNAGA, Hiroshi KUSUDA, Terumi TSUDA, Takeshi MATSUMOTO
-
Patent number: 10202146Abstract: A steering control device capable of causing a steering torque to follow a target steering torque when a driver holds a steering wheel for steering, and making an adjustment so that the steering wheel returns to a neutral position at an appropriate speed, when the driver releases his or her hands from the steering wheel. A motor is controlled based on a motor steering assist torque, which is a sum of a first steering assist torque, which is proportional to an integral value of a deviation between the target steering torque and the steering torque, and a second steering assist torque, which is proportional to a motor rotational angular velocity and acting in a direction of suppressing a return speed of the steering wheel when the steering wheel returns to the neutral position.Type: GrantFiled: March 19, 2015Date of Patent: February 12, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masaya Endo, Hidetoshi Ikeda, Yoshihiko Kinpara, Hiroaki Kitano
-
Patent number: 10088813Abstract: A control apparatus includes: a control computing unit that generates an operation amount based on a control deviation, calculated by performing subtraction of a command value and a control amount, and a control gain; an adjustment-execution-command generating unit that generates an adjustment-execution command value indicating ON or OFF; a binary output unit that generates an adjustment-time addition value based on the control deviation and a hysteresis-width setting value; a standard-deviation estimating unit that calculates a low-frequency-component removed signal obtained by removing low-frequency components of the control amount or the control deviation and calculates a standard-deviation estimated value, which is an estimated value of a standard deviation; and a hysteresis-width computing unit that calculates a hysteresis-width computed value based on the standard-deviation estimated value and changes the hysteresis-width setting value of the binary output unit to the hysteresis-width computed value.Type: GrantFiled: August 17, 2015Date of Patent: October 2, 2018Assignee: Mitsubishi Electric CorporationInventors: Masaya Kimura, Hidetoshi Ikeda, Fumio Kometani
-
Patent number: 10038399Abstract: A motor-control device includes: a command generation unit; an operation detection unit; a drive control unit outputting a drive control signal, a speed signal, and a drive force signal; a current control unit outputting a drive current and the drive current detection value; a mechanical characteristic estimation unit outputting a mechanical characteristic estimation value; an integration unit outputting an integrated drive time or drive amount integrated value of a drive unit; a set period determination unit outputting a signal indicating a set period for a mechanical characteristic permissible threshold output unit; a mechanical characteristic permissible threshold output unit outputting a mechanical characteristic permissible threshold; and a mechanical characteristic abnormality detection unit detecting a mechanical characteristic abnormality.Type: GrantFiled: December 10, 2015Date of Patent: July 31, 2018Assignee: Mitsubishi Electric CorporationInventors: Hiroyuki Sekiguchi, Hidetoshi Ikeda, Yuji Igarashi
-
Patent number: 10029873Abstract: An apparatus for controlling conveyance between rollers includes: a tension-control-amount-detector; a speed-shaft-speed-controller; a tension-shaft-speed-controller; a synchronous-speed-command-generation-unit synchronizing the speed-shaft speed command with a tension-shaft reference speed command; a tension-control-calculation-unit outputting a tension-control correction value based on proportional compensation based on a proportional gain, and integral compensation based on an integral gain; an adjustment-execution-command-generation-unit outputting an adjustment execution command during an automatic adjustment period; a binary-output-unit outputting one of positive and negative values of the additional-value amplitude as an additional value in adjustment during the automatic adjustment period; a tension-shaft-speed-command-generation-unit outputting a tension-shaft speed command based on the tension-shaft reference speed command, the tension-control correction value and the additional value in adjustment;Type: GrantFiled: November 17, 2014Date of Patent: July 24, 2018Assignee: Mitsubishi Electric CorporationInventors: Hidetoshi Ikeda, Masaya Kimura, Akio Saito, Yoshihiro Marushita
-
Patent number: 10023416Abstract: An inter-roller conveyance control device conveying an object to be conveyed between a speed shaft roller driven by a speed shaft motor and a tension shaft roller driven by a tension shaft motor while providing tension to the object includes a gain table that stores a plurality of pairs of a conveyance condition variable changing while the object to be conveyed is conveyed and affecting an appropriate value of a control parameter and a control parameter candidate value that is an appropriate control parameter where, when the conveyance condition variable is changed, the device performs calculation on the basis of the conveyance condition variable and a gain calculation result and writes, into the gain table, the control parameter candidate value and the conveyance condition variable in association with each other when the calculation is completed.Type: GrantFiled: March 18, 2015Date of Patent: July 17, 2018Assignee: Mitsubishi Electric CorporationInventors: Masaya Kimura, Hidetoshi Ikeda, Akio Saito, Yoshihiro Marushita
-
Patent number: 9948598Abstract: Provided is a delivery control device, a data delivery system, and a delivery control method that enable a simultaneous data delivery to a number of reception terminals by increasing the number of reception terminals simultaneously connecting to a router. The delivery control device 100 includes an IP address-MAC address record unit 105 that associates an IP address with a plurality of MAC addresses and holds the IP address and the MAC addresses, and a transmission unit 101, 102 that specifies a destination MAC address to transmit a packet. The transmission unit 101, 102 transmits a packet addressed to a predetermined IP address to all the MAC addresses that have been associated with the IP address in the IP address-MAC address record unit 105.Type: GrantFiled: November 23, 2015Date of Patent: April 17, 2018Assignee: RENESAS ELECTRONICS CORPORATIONInventor: Hidetoshi Ikeda
-
Patent number: 9887662Abstract: A device including: a command-generator outputting a drive command signal to a drive unit; a detector outputting a position-detection signal of the drive unit; a drive-current detector outputting a drive-current detection value; a controller receiving the drive command and position-detection signals to generate a drive-force command signal, and supplying the drive current according to the drive-force command signal and the drive-current detection value; a friction-characteristics-estimator receiving a drive force signal and the position-detection signal to output a friction-characteristics estimate value; a temperature-information acquirer outputting a temperature information value; a friction modeling unit having a set reference friction model having temperature-dependent characteristics, and outputting reference friction characteristics based on the temperature information value; and a friction-variation analyzer outputting a friction variation value based on variation of the friction-characteristics estimaType: GrantFiled: March 20, 2015Date of Patent: February 6, 2018Assignee: Mitsubishi Electric CorporationInventors: Hiroyuki Sekiguchi, Hidetoshi Ikeda, Shinya Murakoshi, Kazuya Inazuma, Takashi Isoda
-
Publication number: 20180024572Abstract: A motor controller includes: an error suppression compensation unit that outputs an error suppression signal for driving the motor such that a difference between the position command signal and a signal based on the motor position signal equals zero; an acceleration extraction unit that outputs an acceleration component of a natural frequency of a stand from a stand vibration signal; an acceleration compensation unit that outputs a proportional compensation signal obtained by multiplying the stand acceleration signal by a proportional gain; a machine end correction unit that outputs a machine end correction signal, and decreases an amplitude of vibration at the machine end relative position; and an addition unit that outputs a signal obtained by adding the machine end correction signal to the error suppression signal.Type: ApplicationFiled: February 2, 2016Publication date: January 25, 2018Applicant: Mitsubishi Electric CorporationInventors: Takashi KAI, Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Shigeo AMIGASAYA
-
Publication number: 20180013376Abstract: A motor-control device includes: a command generation unit; an operation detection unit; a drive control unit outputting a drive control signal, a speed signal, and a drive force signal; a current control unit outputting a drive current and the drive current detection value; a mechanical characteristic estimation unit outputting a mechanical characteristic estimation value; an integration unit outputting an integrated drive time or drive amount integrated value of a drive unit; a set period determination unit outputting a signal indicating a set period for a mechanical characteristic permissible threshold output unit; a mechanical characteristic permissible threshold output unit outputting a mechanical characteristic permissible threshold; and a mechanical characteristic abnormality detection unit detecting a mechanical characteristic abnormality.Type: ApplicationFiled: December 10, 2015Publication date: January 11, 2018Applicant: Mitsubishi Electric CorporationInventors: Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Yuji IGARASHI
-
Publication number: 20170277143Abstract: A control apparatus includes: a control computing unit that generates an operation amount based on a control deviation, calculated by performing subtraction of a command value and a control amount, and a control gain; an adjustment-execution-command generating unit that generates an adjustment-execution command value indicating ON or OFF; a binary output unit that generates an adjustment-time addition value based on the control deviation and a hysteresis-width setting value; a standard-deviation estimating unit that calculates a low-frequency-component removed signal obtained by removing low-frequency components of the control amount or the control deviation and calculates a standard-deviation estimated value, which is an estimated value of a standard deviation; and a hysteresis-width computing unit that calculates a hysteresis-width computed value based on the standard-deviation estimated value and changes the hysteresis-width setting value of the binary output unit to the hysteresis-width computed value.Type: ApplicationFiled: August 17, 2015Publication date: September 28, 2017Applicant: Mitsubishi Electric CorporationInventors: Masaya KIMURA, Hidetoshi IKEDA, Fumio KOMETANI
-
Patent number: 9772619Abstract: A motor control device includes: an X-axis detector; a Y-axis detector; a trajectory command generator that outputs a first position command and a second position command; an X-axis response correction unit that outputs a corrected position command; an X-axis position control unit that generates a first torque command; a Y-axis position control unit that generates a second torque command; a Y-axis measuring instrument that detects second machine end displacement; a Y-axis zero-point estimation unit that extracts characteristics of a zero point of a transfer function on the basis of the second torque command and the machine end displacement or on the basis of the second position command and the machine end displacement; and a response-correction-parameter determination unit that sets a response correction filter by using the characteristics of the zero point.Type: GrantFiled: November 26, 2014Date of Patent: September 26, 2017Assignee: Mitsubishi Electric CorporationInventors: Nobuhiro Shinohara, Hiroyuki Sekiguchi, Hidetoshi Ikeda, Tomoya Fujita, Kotaro Nagaoka
-
Patent number: 9738307Abstract: Provided are a steering control device and the like, including the steps of: calculating a steering assist torque to be applied to an actuator for applying the steering assist torque to a steering system of a vehicle in order to improve return characteristics of the steering system; determining a steering state of a driver; correcting the steering assist torque depending on a result of the steering state determination; and controlling the actuator depending on the corrected steering assist torque, in which the step of determining a steering state of a driver includes determining the steering state of the driver based on a combination of at least two of the following: a manually-operating steering state determination; an abrupt steering wheel return determination; a high-acceleration steering wheel return determination; a manual return steering determination; and an additional-steering determination.Type: GrantFiled: April 8, 2013Date of Patent: August 22, 2017Assignee: Mitsubishi Electric CorporationInventors: Masaya Endo, Hidetoshi Ikeda, Isao Kezobo, Kenji Ogawa, Taizo Toda
-
Publication number: 20170174461Abstract: An inter-roller conveyance control device conveying an object to be conveyed between a speed shaft roller driven by a speed shaft motor and a tension shaft roller driven by a tension shaft motor while providing tension to the object includes a gain table that stores a plurality of pairs of a conveyance condition variable changing while the object to be conveyed is conveyed and affecting an appropriate value of a control parameter and a control parameter candidate value that is an appropriate control parameter where, when the conveyance condition variable is changed, the device performs calculation on the basis of the conveyance condition variable and a gain calculation result and writes, into the gain table, the control parameter candidate value and the conveyance condition variable in association with each other when the calculation is completed.Type: ApplicationFiled: March 18, 2015Publication date: June 22, 2017Applicant: Mitsubishi Electric CorporationInventors: Masaya KIMURA, Hidetoshi IKEDA, Akio SAITO, Yoshihiro MARUSHITA
-
Publication number: 20170179869Abstract: A device including: a command-generator outputting a drive command signal to a drive unit; a detector outputting a position-detection signal of the drive unit; a drive-current detector outputting a drive-current detection value; a controller receiving the drive command and position-detection signals to generate a drive-force command signal, and supplying the drive current according to the drive-force command signal and the drive-current detection value; a friction-characteristics-estimator receiving a drive force signal and the position-detection signal to output a friction-characteristics estimate value; a temperature-information acquirer outputting a temperature information value; a friction modeling unit having a set reference friction model having temperature-dependent characteristics, and outputting reference friction characteristics based on the temperature information value; and a friction-variation analyzer outputting a friction variation value based on variation of the friction-characteristics estimaType: ApplicationFiled: March 20, 2015Publication date: June 22, 2017Applicant: Mitsubishi Electric CorporationInventors: Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Shinya MURAKOSHI, Kazuya INAZUMA, Takashi ISODA
-
Publication number: 20170080970Abstract: An input/output device is connected, via an in-vehicle communication network, to a control device for controlling a motor provided in an electric power steering apparatus that is provided in a vehicle. The input/output device generates an excitation start instruction signal for starting excitation in the motor on the basis of an externally input excitation start instruction, transmits the generated excitation start instruction signal to the control device over the in-vehicle communication network, and receives response data relating to the excitation of the electric power steering apparatus, the response data being detected by the control device while the excitation is underway, from the control device over the in-vehicle communication network.Type: ApplicationFiled: April 9, 2015Publication date: March 23, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Isao KEZOBO, Yoshihiko KINPARA, Hidetoshi IKEDA
-
Publication number: 20170015351Abstract: A steering control device capable of causing a steering torque to follow a target steering torque when a driver holds a steering wheel for steering, and making an adjustment so that the steering wheel returns to a neutral position at an appropriate speed, when the driver releases his or her hands from the steering wheel. A motor is controlled based on a motor steering assist torque, which is a sum of a first steering assist torque, which is proportional to an integral value of a deviation between the target steering torque and the steering torque, and a second steering assist torque, which is proportional to a motor rotational angular velocity and acting in a direction of suppressing a return speed of the steering wheel when the steering wheel returns to the neutral position.Type: ApplicationFiled: March 19, 2015Publication date: January 19, 2017Applicant: MITSUBHISHI ELECTRIC CORPORATIONInventors: Masaya ENDO, Hidetoshi IKEDA, Yoshihiko KINPARA, Hiroaki KITANO
-
Patent number: 9522695Abstract: Provided are a steering control device and a steering control method therefor, which reduce a steering feeling of discomfort due to a pulsed change (short abrupt change) in steering assist torque caused when control such as steering wheel return control is turned on/off, and which acquire a sufficient control effect even when high control response is required, by reducing a fluctuation in steering assist torque caused when one steering assist torque is selected from two or more steering assist torques by low-pass filtering, and by correcting the low-pass filtering depending on a change amount of the selected steering assist torque.Type: GrantFiled: April 8, 2013Date of Patent: December 20, 2016Assignee: Mitsubishi Electric CorporationInventors: Masaya Endo, Yoshihiko Kimpara, Hidetoshi Ikeda, Kenji Ogawa, Taizo Toda
-
Publication number: 20160327932Abstract: A motor control device includes: an X-axis detector; a Y-axis detector; a trajectory command generator that outputs a first position command and a second position command; an X-axis response correction unit that outputs a corrected position command; an X-axis position control unit that generates a first torque command; a Y-axis position control unit that generates a second torque command; a Y-axis measuring instrument that detects second machine end displacement; a Y-axis zero-point estimation unit that extracts characteristics of a zero point of a transfer function on the basis of the second torque command and the machine end displacement or on the basis of the second position command and the machine end displacement; and a response-correction-parameter determination unit that sets a response correction filter by using the characteristics of the zero point.Type: ApplicationFiled: November 26, 2014Publication date: November 10, 2016Applicant: Mitsubishi Electric CorporationInventors: Nobuhiro SHINOHARA, Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Tomoya FUJITA, Kotaro NAGAOKA