Patents by Inventor Akihisa Kawauchi
Akihisa Kawauchi 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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Publication number: 20230347944Abstract: A vehicle vibration control system includes: a buffer mechanism that is disposed between a wheel and a vehicle body and capable of adjusting buffer performance as a function of reducing vibration input to the vehicle body from the wheel; a weight detection unit that detects the weight of the vehicle body; a traveling position detection unit that detects the traveling position of the vehicle body; and a control device that controls the buffer performance of the buffer mechanism. The control device acquires a driving pattern in which the traveling position of the vehicle body and the buffer performance were set, on the basis of the weight of the vehicle body, and controls the buffer performance of the buffer mechanism on the basis of the acquired driving pattern and a result detected in the traveling position detection unit.Type: ApplicationFiled: February 12, 2021Publication date: November 2, 2023Inventors: Akihisa KAWAUCHI, Koji UCHIDA, Hiroyuki KONO, So TAMURA
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Publication number: 20230324177Abstract: An acceleration monitoring device that comprises: an acquisition unit that acquires measured acceleration waveforms, being acceleration waveforms measured by a vehicle that is traveling a trajectory; a storage unit that stores a reference acceleration waveform, being an acceleration waveform that serves as a reference for measured acceleration waveforms for a predetermined area of interest that is part of the trajectory; and a monitoring unit that monitors the acceleration values for non-linear expanded/contracted and measured acceleration waveforms, being acceleration waveforms made to correspond to the reference acceleration waveform by non-linearly expanding and contracting the time axis for measured acceleration waveforms.Type: ApplicationFiled: December 1, 2021Publication date: October 12, 2023Inventors: Akihisa KAWAUCHI, Koji UCHIDA, Kosaku MURASE
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Publication number: 20220379901Abstract: This monitoring device comprises: an acceleration acquisition unit for acquiring acceleration data of a vehicle traveling along a track; an acceleration effective value acquisition unit for acquiring a plurality of acceleration effective values obtained by applying a bandpass filter for each of a plurality of constant specific bandwidths to the acceleration data; a corrected acceleration calculation unit for calculating a corrected acceleration on the basis of each of the acceleration effective values of the respective constant specific bandwidths and predetermined correction coefficients corresponding to the respective constant specific bandwidths; and an abnormality detection unit for detecting an abnormality of the vehicle or of the track on the basis of the magnitude of the corrected acceleration.Type: ApplicationFiled: July 28, 2020Publication date: December 1, 2022Inventors: Akihisa KAWAUCHI, Hiroyuki KONO, Koji UCHIDA, Mitsuaki HOSHI
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Patent number: 11465507Abstract: This abnormality monitoring device is equipped with: an acceleration data acquisition unit for acquiring measurement data about the acceleration of a vehicle chassis; an abnormality presence determination unit for determining whether an abnormality is present on the basis of a comparison between the acceleration and a threshold; a frequency analysis unit for analyzing the acceleration frequency when the abnormality presence determination unit determines that an abnormality is present, and an abnormality type identification unit for identifying abnormality type on the basis of the frequency pattern.Type: GrantFiled: February 16, 2018Date of Patent: October 11, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Akihisa Kawauchi, Hiroyuki Kono, Koji Uchida, Katsuya Kuroki, So Tamura
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Patent number: 11203353Abstract: A steering control system includes: a deviation amount detection unit configured to detect a deviation amount of a car that travels on a track, from a reference traveling path of the car in a width direction of the track; a roll or lateral direction vibration amount detection unit configured to detect a roll or lateral direction vibration amount of the car; and a feedback control unit configured to perform feedback control of steering of the car so as to reduce the deviation amount and the roll or lateral direction vibration amount. The feedback control unit is configured to output a steering command value in which a specified frequency to be reduced is suppressed.Type: GrantFiled: March 7, 2019Date of Patent: December 21, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Koji Uchida, Hiroyuki Kono, Akihisa Kawauchi
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Publication number: 20210261393Abstract: A vibration suppression system for a loading vehicle includes: a sensor configured to detect a parameter indicating acceleration along a vertical direction of a load handling apparatus or of a vehicle main body of the loading vehicle; a vibration control force generating apparatus configured to apply a vibration control force for suppressing vibration of the loading vehicle; and a controller configured to generate a feedback command to be issued to the vibration control force generating apparatus based on a detection value of the sensor.Type: ApplicationFiled: January 21, 2021Publication date: August 26, 2021Inventors: Kengo IMAOKA, Shoichi AOKI, Kensuke FUTAHASHI, Noriyuki HASEGAWA, Koji UCHIDA, Hiroyuki KONO, Akihisa KAWAUCHI
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Patent number: 11084509Abstract: This railway vehicle is provided with: a bracket including a contact surface which is in contact with a second surface of a second plate member, and also including a recess which is provided in a portion facing an uneven surface; and a dynamic vibration absorber including a damper section which is located on the side opposite the contact surface and which is affixed to the bracket, and also including a weight section which is disposed on the side opposite the side to which the bracket is provided and which is disposed on the damper section. The bracket is separated from the uneven surface.Type: GrantFiled: November 2, 2017Date of Patent: August 10, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Katsuya Kuroki, Akihisa Kawauchi, Hiroyuki Kono, Takeshi Kora, Yoshinori Mitsui, Eigo Hayashi
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Publication number: 20210231533Abstract: A load estimation apparatus includes: an acceleration sensor attached to at least one of a bogie body supporting wheels or a vehicle body attached to the bogie body and configured to measure a first acceleration; and a control unit configured to estimate a load which is applied to the bogie body on the basis of load information which is acquired in advance and in which an acceleration and a load are correlated and the first acceleration.Type: ApplicationFiled: September 5, 2019Publication date: July 29, 2021Inventors: Akihisa KAWAUCHI, Hiroyuki KONO, Koji UCHIDA, Teruo YAMASHITA
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Patent number: 10953900Abstract: An abnormality detection device includes: a measurement value acquiring unit configured to acquire input accelerations of n vehicles traveling along a track; and an abnormality determination unit configured to determine abnormality in the track at a track position at which the input accelerations are equal to or more than a threshold value in a case where it has detected that the input accelerations for all of the n vehicles are equal to or more than a threshold value, and determine abnormality in any one or a plurality of vehicles out of n?1 or less vehicles in the n vehicles at which the input accelerations are equal to or more than the threshold value in a case where it has detected that the input accelerations for the any one or a plurality of vehicles out of the n?1 or less vehicles in the n vehicles are equal to or more than the threshold value.Type: GrantFiled: October 29, 2018Date of Patent: March 23, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Akihisa Kawauchi, Hiroyuki Kono, Koji Uchida
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Patent number: 10895043Abstract: A track includes a travel path including a travel face with which travel wheels of a vehicle come into contact while rolling. The travel path includes a plurality of travel path forming units that are arranged to be adjacent to each other in a travel direction of the vehicle and of which each includes a unit travel face forming part of the travel face and a positioning unit that fixes a relative position between travel path forming units adjacent to each other.Type: GrantFiled: October 7, 2016Date of Patent: January 19, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Toshiaki Asanoma, Yukihide Yanobu, Hiroyuki Kono, Koji Uchida, Akihisa Kawauchi, Yoshinobu Murakami, Yasuyuki Mukai
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Publication number: 20200148237Abstract: This abnormality monitoring device is equipped with: an acceleration data acquisition unit for acquiring measurement data about the acceleration of a vehicle chassis; an abnormality presence determination unit for determining whether an abnormality is present on the basis of a comparison between the acceleration and a threshold; a frequency analysis unit for analyzing the acceleration frequency when the abnormality presence determination unit determines that an abnormality is present, and an abnormality type identification unit for identifying abnormality type on the basis of the frequency pattern.Type: ApplicationFiled: February 16, 2018Publication date: May 14, 2020Inventors: Akihisa KAWAUCHI, Hiroyuki KONO, Koji UCHIDA, Katsuya KUROKI, So TAMURA
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Publication number: 20190337537Abstract: This railway vehicle is provided with: a bracket including a contact surface which is in contact with a second surface of a second plate member, and also including a recess which is provided in a portion facing an uneven surface; and a dynamic vibration absorber including a damper section which is located on the side opposite the contact surface and which is affixed to the bracket, and also including a weight section which is disposed on the side opposite the side to which the bracket is provided and which is disposed on the damper section. The bracket is separated from the uneven surface.Type: ApplicationFiled: November 2, 2017Publication date: November 7, 2019Inventors: Katsuya KUROKI, Akihisa KAWAUCHI, Hiroyuki KONO, Takeshi KORA, Yoshinori MITSUI, Eigo HAYASHI
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Publication number: 20190276043Abstract: A steering control system includes: a deviation amount detection unit configured to detect a deviation amount of a car that travels on a track, from a reference traveling path of the car in a width direction of the track; a roll or lateral direction vibration amount detection unit configured to detect a roll or lateral direction vibration amount of the car; and a feedback control unit configured to perform feedback control of steering of the car so as to reduce the deviation amount and the roll or lateral direction vibration amount. The feedback control unit is configured to output a steering command value in which a specified frequency to be reduced is suppressed.Type: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Inventors: Koji UCHIDA, Hiroyuki KONO, Akihisa KAWAUCHI
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Publication number: 20190126959Abstract: An abnormality detection device includes: a measurement value acquiring unit configured to acquire input accelerations of n vehicles traveling along a track; and an abnormality determination unit configured to determine abnormality in the track at a track position at which the input accelerations are equal to or more than a threshold value in a case where it has detected that the input accelerations for all of the n vehicles are equal to or more than a threshold value, and determine abnormality in any one or a plurality of vehicles out of n?1 or less vehicles in the n vehicles at which the input accelerations are equal to or more than the threshold value in a case where it has detected that the input accelerations for the any one or a plurality of vehicles out of the n?1 or less vehicles in the n vehicles are equal to or more than the threshold value.Type: ApplicationFiled: October 29, 2018Publication date: May 2, 2019Inventors: Akihisa KAWAUCHI, Hiroyuki KONO, Koji UCHIDA
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Patent number: 10144438Abstract: A traveling bogie includes a steerable wheel, a bogie main body configured to support the steerable wheel, a guide apparatus pivotally supported by the bogie main body and turned by receiving a reaction force from a guide rail, a steering mechanism configured to apply a steering force to the steerable wheel using the reaction force received by the guide apparatus, and an assist mechanism configured to apply an auxiliary steering force for assisting with the steering force from the steering mechanism to the steerable wheel.Type: GrantFiled: October 22, 2014Date of Patent: December 4, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Yukihide Yanobu, Hiroyuki Kono, Akihisa Kawauchi, Kousuke Katahira, So Tamura
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Publication number: 20180327004Abstract: Provided is a course correction procedure generation device that comprises: a measurement data acquisition unit for acquiring measurement data on a course; a simulation execution unit with which a travel simulation for simulating travel by the vehicle on the course is executed on the basis of the measurement data and a speed that is established in accordance with the location of the vehicle on the course; and a correction procedure generation unit for generating a correction procedure on the basis of the result of the travel simulation, the correction procedure being information indicative of content for correcting the course.Type: ApplicationFiled: December 15, 2016Publication date: November 15, 2018Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Akihisa KAWAUCHI, Koji UCHIDA, Hiroyuki KONO, Yukihide YANOBU, Eisuke OKANO, Kosaku MURASE
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Publication number: 20180298562Abstract: A track includes a travel path including a travel face with which travel wheels of a vehicle come into contact while rolling. The travel path includes a plurality of travel path forming units that are arranged to be adjacent to each other in a travel direction of the vehicle and of which each includes a unit travel face forming part of the travel face and a positioning unit that fixes a relative position between travel path forming units adjacent to each other.Type: ApplicationFiled: October 7, 2016Publication date: October 18, 2018Inventors: Toshiaki ASANOMA, Yukihide YANOBU, Hiroyuki KONO, Koji UCHIDA, Akihisa KAWAUCHI, Yoshinobu MURAKAMI, Yasuyuki MUKAI
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Patent number: 9919720Abstract: This traveling bogie is provided with: steered wheels; a main body for supporting the steered wheels; a guide device turning when subjected to a reaction force from a guide rail; a steering mechanism for applying a steering force to the steered wheels utilizing the reaction force applied to the guide device; and an assist mechanism for applying an assist steering force to the steered wheels, the assist steering force assisting the steering force applied by the steering mechanism. The assist mechanism is provided with: a first operation arm pivoting together with the steered wheels in the direction in which the steered wheels are steered; a second operation arm rotating about a rotation axis relative to the main body in response to the turning of the guide device; and an elastically deformable section connected to the first operation arm and the second operation arm and elastically deformable.Type: GrantFiled: October 20, 2014Date of Patent: March 20, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yukihide Yanobu, Hiroyuki Kono, Akihisa Kawauchi, Kousuke Katahira, So Tamura
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Publication number: 20160264156Abstract: A traveling bogie includes a steerable wheel, a bogie main body configured to support the steerable wheel, a guide apparatus pivotally supported by the bogie main body and turned by receiving a reaction force from a guide rail, a steering mechanism configured to apply a steering force to the steerable wheel using the reaction force received by the guide apparatus, and an assist mechanism configured to apply an auxiliary steering force for assisting with the steering force from the steering mechanism to the steerable wheel.Type: ApplicationFiled: October 22, 2014Publication date: September 15, 2016Inventors: Yukihide YANOBU, Hiroyuki KONO, Akihisa KAWAUCHI, Kousuke KATAHIRA, So TAMURA
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Publication number: 20160257315Abstract: This traveling bogie is provided with: steered wheels; a main body for supporting the steered wheels; a guide device turning when subjected to a reaction force from a guide rail; a steering mechanism for applying a steering force to the steered wheels utilizing the reaction force applied to the guide device; and an assist mechanism for applying an assist steering force to the steered wheels, the assist steering force assisting the steering force applied by the steering mechanism. The assist mechanism is provided with: a first operation arm pivoting together with the steered wheels in the direction in which the steered wheels are steered; a second operation arm rotating about a rotation axis relative to the main body in response to the turning of the guide device; and an elastically deformable section connected to the first operation arm and the second operation arm and elastically deformable.Type: ApplicationFiled: October 20, 2014Publication date: September 8, 2016Inventors: Yukihide YANOBU, Hiroyuki KONO, Akihisa KAWAUCHI, Kousuke KATAHIRA, So TAMURA