Patents by Inventor Yuya HISANO
Yuya HISANO 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).
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Patent number: 11177747Abstract: A power conversion device, comprising: an energization device (END) applying a voltage to armature and field windings of a rotating electrical machine (REM) according to an energization signal (ENS), and having inverter and alternator power generation modes (I-PGM, A-PGM); a power-generation switching signal generator (PGSSG) generating a power-generation switching signal (GES) for switching the I-PGM, A-PGM according to switching of a first selection (FSS) switching the modes arbitrarily and a second selection (SSS) switching the modes base on a maximum output in the modes; a voltage command generator (VCG) generating an armature voltage command (AVC) and a field voltage command (FVC) based on a REM output command (REMC); an energization signal generator (ESG) generating the ENS corresponding to armature and field windings based on AVC, FVC, GES and DC voltage of END, wherein PGSSG generates the GES by switching FSS, SSS regarding a rotating electrical machine output command MOC value.Type: GrantFiled: April 19, 2017Date of Patent: November 16, 2021Assignee: Mitsubishi Electric CorporationInventor: Yuya Hisano
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Publication number: 20210281200Abstract: A power conversion device, comprising: an energization device (END) applying a voltage to armature and field windings of a rotating electrical machine (REM) according to an energization signal (ENS), and having inverter and alternator power generation modes (I-PGM,A-PGM); a power-generation switching signal generator (PGSSG) generating a power-generation switching signal (GES) for switching the I-PGM, A-PGM according to switching of a first selection (FSS) switching the modes arbitrarily and a second selection (SSS) switching the modes base on a maximum output in the modes; a voltage command generator (VCG) generating an armature voltage command (AVC) and a field voltage command (FVC) based on a REM output command (REMC); an energization signal generator (ESG) generating the ENS corresponding to armature and field windings based on AVC, FVC, GES and DC voltage of END, wherein PGSSG generates the GES by switching FSS, SSS regarding a rotating electrical machine output command MOC value.Type: ApplicationFiled: April 19, 2017Publication date: September 9, 2021Applicant: Mitsubishi Electric CorporationInventor: Yuya HISANO
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Patent number: 11081998Abstract: To provide a controller of rotary electric machine which can control voltage of each set of the winding appropriately within a range less than or equal to the DC power voltage, to the rotary electric machine which has plural sets of windings. A controller of rotary electric machine calculates, for each set, a required DC voltage which is a minimum DC power voltage required for applying a voltage according to the voltage command value to the winding, based on the voltage command value; calculates one common required DC voltage which is common to all sets, based on all sets of the required DC voltages; changes the common voltage control value so that the common required DC voltage-approaches the DC power voltage; and changes each set of the current command value based on the common voltage control value.Type: GrantFiled: January 10, 2018Date of Patent: August 3, 2021Assignee: Mitsubishi Electric CorporationInventors: Tomohiro Seki, Ryo Nakamura, Yuya Hisano, Masahiro Iezawa
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Patent number: 10804833Abstract: Provided is a control device for an electric generator/motor, which includes an armature winding and a field winding, the control device including: a bridge circuit configured to energize the armature winding; a field circuit configured to energize the field winding; and an energization control unit configured to control the energization of the bridge circuit and the field circuit. The energization control unit is configured to perform, when performing switching between a generation mode and a drive mode in response to an external command to control the electric generator/motor, control on a current supply amount for the field winding, and vector control on a current supply amount for the armature winding so as to compensate for a variation in field current.Type: GrantFiled: November 2, 2016Date of Patent: October 13, 2020Assignee: Mitsubishi Electric CorporationInventors: Tomohiro Seki, Yuya Hisano, Ryo Nakamura
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Publication number: 20200266748Abstract: To provide a controller of rotary electric machine which can control voltage of each set of the winding appropriately within a range less than or equal to the DC power voltage, to the rotary electric machine which has plural sets of windings. A controller of rotary electric machine calculates, for each set, a required DC voltage which is a minimum DC power voltage required for applying a voltage according to the voltage command value to the winding, based on the voltage command value; calculates one common required DC voltage which is common to all sets, based on all sets of the required DC voltages; changes the common voltage control value so that the common required DC voltage-approaches the DC power voltage; and changes each set of the current command value based on the common voltage control value.Type: ApplicationFiled: January 10, 2018Publication date: August 20, 2020Applicant: Mitsubishi Electric CorporationInventors: Tomohiro SEKI, Ryo NAKAMURA, Yuya HISANO, Masahiro IEZAWA
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Publication number: 20190253012Abstract: Provided is a control device for an electric generator/motor, which includes an armature winding and a field winding, the control device including: a bridge circuit configured to energize the armature winding; a field circuit configured to energize the field winding; and an energization control unit configured to control the energization of the bridge circuit and the field circuit. The energization control unit is configured to perform, when performing switching between a generation mode and a drive mode in response to an external command to control the electric generator/motor, control on a current supply amount for the field winding, and vector control on a current supply amount for the armature winding so as to compensate for a variation in field current.Type: ApplicationFiled: November 2, 2016Publication date: August 15, 2019Applicant: Mitsubishi Electric CorporationInventors: Tomohiro SEKI, Yuya HISANO, Ryo NAKAMURA
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Patent number: 9991833Abstract: A control device for rotating electric machine, which controls a rotating electric machine as a charging electric generator, using an inverter circuit, the control device including: an energization amount generating unit for generating a first electric generation mode in which an energization amount for a field winding and an energization amount for an armature winding of the rotating electric machine are controlled and the inverter circuit is driven to perform electric generation, and a second electric generation mode in which an energization amount for the field winding is controlled to perform electric generation; and an energization signal generating unit for, on the basis of variation-related information relevant to variation in one of electric generation torque and electric generation current of the rotating electric machine, performing switching between the first electric generation mode and the second electric generation mode, and generating energization signals for the field winding and the armatureType: GrantFiled: August 31, 2016Date of Patent: June 5, 2018Assignee: Mitsubishi Electric CorporationInventors: Tomohiro Seki, Masahiro Iezawa, Ryo Nakamura, Yuya Hisano
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Publication number: 20170294857Abstract: A control device for rotating electric machine, which controls a rotating electric machine as a charging electric generator, using an inverter circuit, the control device including: an energization amount generating unit for generating a first electric generation mode in which an energization amount for a field winding and an energization amount for an armature winding of the rotating electric machine are controlled and the inverter circuit is driven to perform electric generation, and a second electric generation mode in which an energization amount for the field winding is controlled to perform electric generation; and an energization signal generating unit for, on the basis of variation-related information relevant to variation in one of electric generation torque and electric generation current of the rotating electric machine, performing switching between the first electric generation mode and the second electric generation mode, and generating energization signals for the field winding and the armatureType: ApplicationFiled: August 31, 2016Publication date: October 12, 2017Applicant: Mitsubishi Electric CorporationInventors: Tomohiro SEKI, Masahiro IEZAWA, Ryo NAKAMURA, Yuya HISANO
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Patent number: 9294018Abstract: An electric motor control device includes a torque command generation portion that outputs a torque command ?c generated on the basis of a rotation speed R and specifying an output torque, a minimum energization point number generation portion that generates a minimum number of energization points, Nmin, indicating the minimum number of points to be energized in windings of an armature and a field on the basis of the rotation speed R and the torque command ?c, an energization signal generation portion that outputs an energization signal S on the basis of a state quantity M of an electric motor, the minimum number of energization points, Nmin, the torque command ?c, a DC voltage value Vdc, a current value I, and a field position ?, and an energization portion that energizes an armature winding and a field winding according to the energization signal S.Type: GrantFiled: June 9, 2014Date of Patent: March 22, 2016Assignee: Mitsubishi Electric CorporationInventors: Yuya Hisano, Ryo Nakamura
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Patent number: 9212602Abstract: An electric motor control apparatus includes a phase correction portion that generates and outputs an amount of phase correction with which to correct a phase of a signal from a position sensor detecting a position of a magnetic pole of an electric motor. The phase correction portion generates and outputs an energization stop signal in a case where a rotation speed of the electric motor is within a predetermined range and stores an amount of phase correction generated therein according to a comparison between a signal from the position sensor or a first phase and an induced voltage of the electric motor to output the amount of phase correction.Type: GrantFiled: May 7, 2012Date of Patent: December 15, 2015Assignee: Mitsubishi Electric CorporationInventors: Yuya Hisano, Hideyuki Tanaka, Masahiro Iezawa
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Publication number: 20150097509Abstract: An electric motor control device includes a torque command generation portion that outputs a torque command ?c generated on the basis of a rotation speed R and specifying an output torque, a minimum energization point number generation portion that generates a minimum number of energization points, Nmin, indicating the minimum number of points to be energized in windings of an armature and a field on the basis of the rotation speed R and the torque command ?c, an energization signal generation portion that outputs an energization signal S on the basis of a state quantity M of an electric motor, the minimum number of energization points, Nmin, the torque command ?c, a DC voltage value Vdc, a current value I, and a field position ?, and an energization portion that energizes an armature winding and a field winding according to the energization signal S.Type: ApplicationFiled: June 9, 2014Publication date: April 9, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuya HISANO, Ryo NAKAMURA
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Patent number: 8593093Abstract: An electric motor control apparatus capable of controlling a motor normally regardless of failures is obtained without increased cost. The apparatus includes a position sensor failure determination unit which outputs a failure determination signal, and generates a first phase; a motor rotation speed calculator which operates based on the failure determination signal and position sensor signals; a phase command generator producing a phase command based on the first phase, the failure determination signal and rotation speed; an amplitude command generator that generates an amplitude command indicating magnitude of a driving signal for the motor, and an electrical energization unit that applies the driving signal to the motor based on the phase command and the amplitude command. Upon failure of a position sensor, the phase command generator generates the phase command using the first phase, and a second phase obtained based on the first phase and the rotation speed.Type: GrantFiled: October 3, 2011Date of Patent: November 26, 2013Assignee: Mitsubishi Electric CorporationInventors: Yuya Hisano, Ryo Nakamura
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Publication number: 20130004334Abstract: An electric motor control apparatus includes a phase correction portion that generates and outputs an amount of phase correction with which to correct a phase of a signal from a position sensor detecting a position of a magnetic pole of an electric motor. The phase correction portion generates and outputs an energization stop signal in a case where a rotation speed of the electric motor is within a predetermined range and stores an amount of phase correction generated therein according to a comparison between a signal from the position sensor or a first phase and an induced voltage of the electric motor to output the amount of phase correction.Type: ApplicationFiled: May 7, 2012Publication date: January 3, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuya HISANO, Hideyuki TANAKA, Masahiro IEZAWA
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Publication number: 20120235610Abstract: An electric motor control apparatus capable of controlling a motor normally regardless of failures is obtained without increased cost. The apparatus includes a position sensor failure determination unit which outputs a failure determination signal, and generates a first phase; a motor rotation speed calculator which operates based on the failure determination signal and position sensor signals; a phase command generator producing a phase command based on the first phase, the failure determination signal and rotation speed; an amplitude command generator that generates an amplitude command indicating magnitude of a driving signal for the motor, and an electrical energization unit that applies the driving signal to the motor based on the phase command and the amplitude command. Upon failure of a position sensor, the phase command generator generates the phase command using the first phase, and a second phase obtained based on the first phase and the rotation speed.Type: ApplicationFiled: October 3, 2011Publication date: September 20, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuya HISANO, Ryo NAKAMURA