Patents by Inventor Kazuhiro Miyachi
Kazuhiro Miyachi 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: 10502314Abstract: An oil pump driving control device of a vehicle having a main oil pump (14) that is driven by a motor/generator (4) and produces a pump discharge oil to a first clutch (3), a second clutch (5) and a belt-type continuously variable transmission (6) provided on a driving force transmission line. A hybrid control module (81) is provided in this FF hybrid vehicle. The hybrid control module (81) is configured to perform a control so that during vehicle stop, the lower an ATF oil temperature is, the more the pump driving energy to drive the main oil pump (14) is decreased. With this control, consumption energy during the vehicle stop can be reduced.Type: GrantFiled: March 3, 2016Date of Patent: December 10, 2019Assignee: JATCO LTDInventors: Takanobu Mouri, Taiichi Onoyama, Seishi Shimamura, Kakuzou Kaneko, Akihiro Toyofuku, Ryuichi Arai, Ryuzo Noguchi, Satoshi Harui, Hironori Miyaishi, Tomoyuki Mizuochi, Kenichi Watanabe, Masumi Fujikawa, Kouichi Kotsuji, Shingo Suzuki, Akito Suzuki, Tetsuya Izumi, Keisuke Iwado, Kazuhiro Miyachi
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Publication number: 20180073628Abstract: An oil pump driving control device of a vehicle having a main oil pump (14) that is driven by a motor/generator (4) and produces a pump discharge oil to a first clutch (3), a second clutch (5) and a belt-type continuously variable transmission (6) provided on a driving force transmission line. A hybrid control module (81) is provided in this FF hybrid vehicle. The hybrid control module (81) is configured to perform a control so that during vehicle stop, the lower an ATF oil temperature is, the more the pump driving energy to drive the main oil pump (14) is decreased. With this control, consumption energy during the vehicle stop can be reduced.Type: ApplicationFiled: March 3, 2016Publication date: March 15, 2018Applicant: JATCO LtdInventors: Takanobu MOURI, Taiichi ONOYAMA, Seishi SHIMAMURA, Kakuzou KANEKO, Akihiro TOYOFUKU, Ryuichi ARAI, Ryuzo NOGUCHI, Satoshi HARUI, Hironori MIYAISHI, Tomoyuki MIZUOCHI, Kenichi WATANABE, Masumi FUJIKAWA, Kouichi KOTSUJI, Shingo SUZUKI, Akito SUZUKI, Tetsuya IZUMI, Keisuke IWADO, Kazuhiro MIYACHI
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Patent number: 9915339Abstract: A drive force transmission device is provided with a motor shaft, a transmission input shaft, a drive side sprocket, a resolver rotor and a cylindrical resolver retainer. The motor shaft is configured to be connected to a motor rotor of a motor. The driving force transmission shaft is coaxially connected to the motor shaft. The oil pump sprocket is provided on the driving force transmission shaft for rotating an oil pump. The resolver rotor is disposed on the motor shaft adjacent the oil pump sprocket for detecting a rotational position of the motor. The cylindrical resolver retainer is coaxially disposed on the motor shaft to fix the resolver rotor to the motor shaft. The resolver retainer includes a stopper that forms an axial positioning surface for the resolver rotor by contacting an end portion of the motor shaft, and an axial position limiting surface of the oil pump sprocket.Type: GrantFiled: October 31, 2012Date of Patent: March 13, 2018Assignee: Nissan Motor Co., Ltd.Inventors: Yasuo Takagi, Kazuhiro Miyachi
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Patent number: 9458909Abstract: A drive power transmission device is provided that either disengages a first friction engagement element or a second friction engagement element when the other is engaged. The drive power transmission device detects the temperature of lubricating oil flowing in each friction engagement element using a temperature sensor. The drive power transmission device selectively disengages either a forward clutch or a reverse brake disengages when the other is engaged. The forward clutch and the reverse brake overlap axially, and are layered radially in an inner/outer arrangement. The temperature sensor is positioned at the periphery of the forward clutch and the reverse brake. A lubricating oil pathway is formed such that lubricating oil for cooling the forward clutch and the reverse brake passes through the forward clutch and the reverse brake in the radial direction from the inside of the forward clutch and the reverse brake to the temperature sensor.Type: GrantFiled: December 25, 2013Date of Patent: October 4, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Takuhiro Sugimoto, Shigeru Ishii, Kazuhiro Miyachi, Takashi Kuwahara
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Patent number: 9222524Abstract: A drive force transmission device includes a clutch operatively interposed between a hub member and a drum member to selectively transmit drive power therebetween. A first rotating shaft member is coupled to the hub member to rotate with the hub member. A second rotating shaft member is coupled to a separating wall part of the drum member to rotate with the drum member. A support member rotatably supports the second rotating shaft member via a bearing. The support member includes a restriction part that restricts axial movement of an outer race of the bearing. A bottom portion of the separating wall part is a radially offset towards the bearing space with respect to a top portion of the separating wall so that the bottom portion radial overlaps with the restriction part as viewed perpendicular to a rotational axis of the drum member.Type: GrantFiled: November 5, 2012Date of Patent: December 29, 2015Assignees: Nissan Motor Co., Ltd., JATCO LtdInventors: Katsuyuki Saito, Kazuhiro Miyachi, Kazutoshi Shimozono, Kiyoto Tamura, Yutaka Yoshikawa, Akihisa Kawai
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Publication number: 20150369340Abstract: A drive power transmission device is provided that either disengages a first friction engagement element or a second friction engagement element when the other is engaged. The drive power transmission device detects the temperature of lubricating oil flowing in each friction engagement element using a temperature sensor. The drive power transmission device selectively disengages either a forward clutch or a reverse brake disengages when the other is engaged. The forward clutch and the reverse brake overlap axially, and are layered radially in an inner/outer arrangement. The temperature sensor is positioned at the periphery of the forward clutch and the reverse brake. A lubricating oil pathway is formed such that lubricating oil for cooling the forward clutch and the reverse brake passes through the forward clutch and the reverse brake in the radial direction from the inside of the forward clutch and the reverse brake to the temperature sensor.Type: ApplicationFiled: December 25, 2013Publication date: December 24, 2015Applicant: NISSAN MOTOR Co., Ltd.,Inventors: Takuhiro SUGIMOTO, Shigeru ISHII, Kazuhiro MIYACHI, Takashi KUWAHARA
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Publication number: 20140262674Abstract: A drive force transmission device includes a clutch operatively interposed between a hub member and a drum member to selectively transmit drive power therebetween. A first rotating shaft member is coupled to the hub member to rotate with the hub member. A second rotating shaft member is coupled to a separating wall part of the drum member to rotate with the drum member. A support member rotatably supports the second rotating shaft member via a bearing. The support member includes a restriction part that restricts axial movement of an outer race of the bearing. A bottom portion of the separating wall part is a radially offset towards the bearing space with respect to a top portion of the separating wall so that the bottom portion radial overlaps with the restriction part as viewed perpendicular to a rotational axis of the drum member.Type: ApplicationFiled: November 5, 2012Publication date: September 18, 2014Inventors: Katsuyuki Saito, Kazuhiro Miyachi, Kazutoshi Shimozono, Kiyoto Tamura, Yutaka Yoshikawa, Akihisa Kawai
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Publication number: 20140230593Abstract: A drive force transmission device is provided with a motor shaft, a transmission input shaft, a drive side sprocket, a resolver rotor and a cylindrical resolver retainer. The motor shaft is configured to be connected to a motor rotor of a motor. The driving force transmission shaft is coaxially connected to the motor shaft. The oil pump sprocket is provided on the driving force transmission shaft for rotating an oil pump. The resolver rotor is disposed on the motor shaft adjacent the oil pump sprocket for detecting a rotational position of the motor. The cylindrical resolver retainer is coaxially disposed on the motor shaft to fix the resolver rotor to the motor shaft. The resolver retainer includes a stopper that forms an axial positioning surface for the resolver rotor by contacting an end portion of the motor shaft, and an axial position limiting surface of the oil pump sprocket.Type: ApplicationFiled: October 31, 2012Publication date: August 21, 2014Applicant: Nissan Motor Co, Ltd.Inventors: Yasuo Takagi, Kazuhiro Miyachi