Patents by Inventor Ryo Sase

Ryo Sase 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).

  • Patent number: 11828240
    Abstract: A temporal change of a turbo rotation speed of a turbocharger is detected for each cycle of an engine. A first vibration component corresponding to each of cylinders is specified from a pulsation component included in the temporal change of the turbo rotation speed, and the first vibration components for each of the cylinders are integrated over a plurality of cycles. A variation of combustion states in the plurality of cylinders is calculated by comparing integration results among the cylinders.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 28, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Ryo Sase, Shintarou Noguchi, Byeongil An
  • Publication number: 20230288492
    Abstract: An adjustment power measuring device includes: an acquisition unit for acquiring effective power exchanged at a connection point with an adjustment power providing means capable of providing adjustment power to a first transmission and distribution network; a first calculation unit for calculating a power demand or a power supply for an entire electric power system including the first transmission and distribution network; and a measuring unit for measuring first adjustment power provided to the first transmission and distribution network by the adjustment power providing means on the basis of the effective power and the power demand or the power supply of the electric power system.
    Type: Application
    Filed: November 12, 2021
    Publication date: September 14, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Patent number: 11753961
    Abstract: A startup control device for adjusting a startup schedule during startup of a power generation plant, the device includes: a determining unit which determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value. The device also includes a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: September 12, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase, Yoshito Nagahama, Hiroshi Ito, Yukihito Okuda, Nobuhiro Osaki, Shoichiro Hosomi
  • Publication number: 20230268737
    Abstract: A settlement device includes a measured value acquisition unit to acquire a measured value of active power transmitted or received at a connection point of a power transmission and distribution network and a regulating power providing means capable of providing regulating power to the power transmission and distribution network and a measured value of a frequency at the connection point; a regulating power measurement unit to measure regulating power at the connection point on the basis of the acquired measured value of the active power and the acquired measured value of the frequency; a regulating power amount calculation unit to calculate an amount of regulating power of a prescribed period at the connection point by integrating the regulating power over time; a power amount acquisition unit to acquire an amount of power transmitted or received in the prescribed period at the connection point; and a settlement unit.
    Type: Application
    Filed: August 30, 2021
    Publication date: August 24, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20230126831
    Abstract: A control parameter optimization device is provided with: a plant model configured to calculate a control command value by a control device and a process quantity of a plant; a control parameter updating unit configured to update a control parameter used for calculating the control command value in the plant model, on the basis of an objective function calculated based on a calculation result of the process quantity in the plant model; and a structural model configured to calculate a clearance between a stationary member and a rotating member in the rotating machine, on the basis of the process quantity from the plant model. The control parameter updating unit is configured to search for an optimal control parameter within a range where the clearance calculated by the structural model satisfies a constraint condition.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 27, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshito Nagahama, Takaharu Hiroe, Kazunari Ide, Ryo Sase, Hiroshi Ito, Norikazu Tezuka, Yukihito Okuda, Nobuhiro Osaki, Shota Mochizuki, Shoichiro Hosomi
  • Publication number: 20230083211
    Abstract: A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Patent number: 11537158
    Abstract: A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 27, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20220390263
    Abstract: A disturbance estimation device includes: an acquisition unit configured to acquire a measurement value measured by a sensor provided in a controlled object; and an estimating unit configured to calculate a variance-covariance matrix of a measurement vector including the measurement value as an element, perform singular value decomposition on the variance-covariance matrix to calculate a singular vector of a maximum singular value, and estimate a disturbance that occurs in the controlled object based on the singular vector.
    Type: Application
    Filed: May 5, 2022
    Publication date: December 8, 2022
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Patent number: 11500965
    Abstract: An abnormality detection device that detects an abnormality of a target device includes a processor that executes a process of acquiring a plurality of types of measured values of the target device, a process of calculating Mahalanobis distances of the acquired plurality of types of measured values, a process of extracting the plurality of Mahalanobis distances calculated in a past predetermined period from a point in time of evaluation of the target device and calculating a moving average value of a square value of each of the extracted Mahalanobis distances, and a process of determining whether or not an abnormality has occurred in the target device on the basis of the moving average value.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: November 15, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Ryo Sase
  • Publication number: 20220316363
    Abstract: Provided is a startup control device for adjusting a startup schedule during startup of a power generation plant. This startup control device is provided with: a determining unit which, for a prescribed physical quantity that restricts the startup of the power generation plant, determines, on the basis of a predicted value of a physical quantity corresponding to the elapsed time from startup when the power generation plant has started up on the basis of a prescribed optimal startup schedule, and an observed value of the physical quantity acquired during the startup of the power generation plant, whether the observed value will exceed the predicted value; a speed adjusting unit which, if the determining unit determines that the observed value will exceed the predicted value, issues an instruction to decelerate the speed of progress of elapsed time from the startup in the optimal startup schedule; and a startup timer which progresses the elapsed time from the startup at a speed based on the instruction.
    Type: Application
    Filed: July 22, 2020
    Publication date: October 6, 2022
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE, Yoshito NAGAHAMA, Hiroshi ITO, Yukihito OKUDA, Nobuhiro OSAKI, Shoichiro HOSOMI
  • Patent number: 11441507
    Abstract: The present invention provides a device and method for detecting a misfire in an engine, the device being provided with: a rotation speed sensor (43) as a supercharger rotation speed measurement unit for measuring a rotation speed (Nt) of a supercharger (23); a misfire index calculation unit (51) that calculates a misfire index (Yt) from a degree of change in the rotation speed (Nt) of the supercharger (23), the rotation speed being measured by the rotation speed sensor (43); and a misfire determination unit (52) that determines a misfire in an engine (10) when the misfire index (Yt) calculated by the misfire index calculation unit (51) exceeds a pre-set determination value (D).
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: September 13, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Ryo Sase, Shintarou Noguchi
  • Patent number: 11333580
    Abstract: An anomaly detecting device includes: a singular value decomposition unit configured to perform singular value decomposition of a variance-covariance matrix of a measured value matrix y0 composed of measured values acquired by a plurality of sensors in a time period considered to be normal, to thereby calculate a singular vector U and a singular value matrix S; an anomaly determination unit configured to apply the singular vector U and the singular value matrix S to a measured value matrix yt to be evaluated and which is acquired in an arbitrary time period to determine whether an anomaly is present from a result of application; and an anomalous part identification unit configured to, when the measured value matrix yt is determined to be anomalous, identify an anomalous part based on a diagonal element of a matrix obtained in association with the measured value matrix yt.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 17, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryo Sase, Takaharu Hiroe
  • Patent number: 11334414
    Abstract: An abnormality detecting apparatus that is configured to detect a presence or absence of an abnormality in a rotating machine includes a processor that is configured to execute a measured value acquisition process of acquiring, on the basis of a detection signal output from a vibration sensor that is configured to measure vibration caused by rotation of the rotating machine, a measured value including an amplitude and a phase of the vibration; a Mahalanobis distance calculation process of calculating a Mahalanobis distance of the measured value acquired at a time point at which the rotating machine is evaluated on the basis of a unit space configured with a plurality of measured values acquired at a plurality of past time points; and a determination process of determining that an abnormality has occurred in the rotating machine in a case where the calculated Mahalanobis distance exceeds a predetermined threshold value.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 17, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Yoshikatsu Ikawa, Ryo Sase
  • Publication number: 20220106918
    Abstract: A temporal change of a turbo rotation speed of a turbocharger is detected for each cycle of an engine. A first vibration component corresponding to each of cylinders is specified from a pulsation component included in the temporal change of the turbo rotation speed, and the first vibration components for each of the cylinders are integrated over a plurality of cycles. A variation of combustion states in the plurality of cylinders is calculated by comparing integration results among the cylinders.
    Type: Application
    Filed: January 15, 2019
    Publication date: April 7, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Ryo SASE, Shintarou NOGUCHI, Byeongil AN
  • Publication number: 20210286324
    Abstract: A compensator includes a processor, and a storage device that is connected to the processor and stores measured input values that are measured values of an input to a subject to control and measured output values that are measured values of an output from the subject to control. The processor performs processing for identifying, from the measured input values and the measured output values, a first coefficient configuring a finite impulse response filter, processing for determining, based on the first coefficient, a second coefficient configuring an infinite impulse response filter, and identifying an inverse system for the subject to control, the inverse system including the second coefficient and a part of the first coefficient, and processing for estimating an input value to be input to the subject to control from a weighted sum of target values of the output.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 16, 2021
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Patent number: 11112760
    Abstract: A control device (70) of a plant which controls operation amounts of a plurality of types of equipment constituting the plant, the control device includes a prediction model deriving unit (71) that derives a prediction model from which a monitoring target value is output, an adjustment amount calculating unit (72) that calculates adjustment amounts of operation amounts in the case where the monitoring target value becomes a desired value and calculates differences between the operation amounts of existing control and the calculated operation amounts as first adjustment amounts, a constraint condition setting unit (73) that sets constraint conditions based on a measurement value and operation conditions of the plant 1, and an operation amount calculating unit (74) that calculates second adjustment amounts to which the constraint conditions are applied and calculates a plurality of the adjusted operation amounts based on each of the calculated second adjustment amounts.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 7, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kazunari Ide, Takaharu Hiroe, Ryo Sase, Yoshikatsu Ikawa, Toshio Ishiwaki, Tomohiro Doi, Hiroshi Kitayama
  • Patent number: 11093316
    Abstract: An abnormality detection device includes a processor and a storage unit connected to the processor.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: August 17, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takaharu Hiroe, Kazunari Ide, Yoshikatsu Ikawa, Ryo Sase
  • Publication number: 20210247274
    Abstract: An anomaly detecting device detects an anomaly of an object by referring to measured values acquired by a plurality of sensors, the device including: a singular value decomposition unit configured to perform singular value decomposition of a variance-covariance matrix of a measured value matrix y0 composed of the measured values acquired in a time period considered to be normal, to thereby calculate a singular vector U and a singular value matrix S; an anomaly determination unit configured to apply the singular vector U and the singular value matrix S to a measured value matrix yt to be evaluated and which is acquired in an arbitrary time period to determine whether the anomaly is present from a result of application; and an anomalous part identification unit configured to, when it is determined that the measured value matrix yt is anomalous, identify the anomalous part based on a diagonal element of a matrix obtained in association with the measured value matrix yt.
    Type: Application
    Filed: January 25, 2021
    Publication date: August 12, 2021
    Inventors: Ryo SASE, Takaharu HIROE
  • Publication number: 20210064072
    Abstract: A control apparatus 20 that is configured to control driving of a power generation apparatus including a motor and a power generator, the control apparatus including a processor 200 executing: a process of calculating a first adjustment force command value used for controlling the motor in accordance with a deviation between an observed value and a reference value of a rotation speed of the power generator; a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a correction value for compensating for a delay of an electric output of the power generator; and a process of calculating a second adjustment force command value used for controlling the motor by adding the first adjustment force command value and the correction value.
    Type: Application
    Filed: July 31, 2020
    Publication date: March 4, 2021
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE
  • Publication number: 20200410042
    Abstract: An abnormality detection device that detects an abnormality of a target device includes a processor that executes a process of acquiring a plurality of types of measured values of the target device, a process of calculating Mahalanobis distances of the acquired plurality of types of measured values, a process of extracting the plurality of Mahalanobis distances calculated in a past predetermined period from a point in time of evaluation of the target device and calculating a moving average value of a square value of each of the extracted Mahalanobis distances, and a process of determining whether or not an abnormality has occurred in the target device on the basis of the moving average value.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 31, 2020
    Inventors: Takaharu HIROE, Kazunari IDE, Ryo SASE