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公开(公告)号：US10900393B2
公开(公告)日：2021-01-26
申请号：US16239608
申请日：2019-01-04
发明人： Yusuke Morita , Motoichi Murakami , Takeshi Fukui , Yuichiro Kajiki , Katsuhiro Ashihara , Alan Hase , Takashi Izumi
IPC分类号： F01M1/16 , F01M9/10 , F01M1/06 , G01M15/00 , G01M13/045 , G01M15/09 , G01M15/12 , F01M1/02 , F01M11/02
摘要： A control device controls an internal combustion engine including: an elastic wave sensor arranged and configured to output a signal responsive to the strength of an acoustic emission wave produced at a sliding portion; and a variable oil pump. The control device is configured to execute an oil pressure control such that the oil pressure approaches a target oil pressure according to an engine operating condition. This oil pressure control includes a first pressure-increase processing executed where an AE correlation value correlated with the strength or occurrence frequency of the acoustic emission wave detected by the elastic wave sensor is greater than a first threshold value. The first pressure-increase processing increases the target oil pressure associated with a first engine operating condition present when the AE correlation value becomes greater than the first threshold value, as compared to when the AE correlation value is not greater than that.
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公开(公告)号：US20180142728A1
公开(公告)日：2018-05-24
申请号：US15808167
申请日：2017-11-09
发明人： Yusuke Morita , Tsutomu Kubota , Tadashi Namba
CPC分类号： F16C9/02 , F16C17/022 , F16C33/046 , F16C33/1065
摘要： A slide bearing configured to support a crankshaft or a crankpin includes: a halved upper bearing body which is disposed on the upper side in an up-and-down movement direction of a piston; and a halved lower bearing body which is disposed on the lower side in the up-and-down movement direction. The upper bearing body includes an upper sliding surface having an upper oil groove disposed along a circumferential direction of the upper sliding surface at a central portion in an axial direction of the upper sliding surface. The lower bearing body includes a lower sliding surface that configures, along with the upper sliding surface, a cylindrical sliding surface that rotatably supports the crankshaft or the crankpin through an oil film, and the axial width of the lower sliding surface is narrower than the axial width including the oil groove of the upper sliding surface.
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公开(公告)号：US20210370948A1
公开(公告)日：2021-12-02
申请号：US17307352
申请日：2021-05-04
发明人： Atsushi Yamaguchi , Yusuke Morita
摘要： A vehicle control method for controlling a vehicle includes: (A) detecting a rainfall condition or a non-rainfall condition using a first sensor mounted on the vehicle; (B) determining whether the vehicle is passing under an upper structure covering the vehicle using a second sensor mounted on the vehicle; (C) determining that the rainfall condition is continuing even when a transition from the rainfall condition to the non-rainfall condition is detected in a case where the vehicle passes under the upper structure; and (D) controlling the vehicle based on whether a weather condition is the rainfall condition or the non-rainfall condition.
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公开(公告)号：US10414390B2
公开(公告)日：2019-09-17
申请号：US15278614
申请日：2016-09-28
发明人： Yusuke Morita , Takashi Koyama
摘要： A control apparatus is applied to an internal combustion engine. The engine comprises a water pump, and an oil pump. The apparatus makes a second motor to drive the water pump drive the oil pump, if the first motor to drive the oil pump malfunctions. Consequently, if the first motor malfunctions, the oil pump can be driven by the second motor. Thus, the possibility of seizing of the sliding portions of the engine can be reduced. Further, if the first motor malfunctions, the friction in the engine can be reduced, since the oil pump is not driven by the crank shaft.
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公开(公告)号：US10605366B2
公开(公告)日：2020-03-31
申请号：US15950744
申请日：2018-04-11
发明人： Hisashi Ohki , Takashi Koyama , Hiroshi Yaguchi , Yusuke Morita , Takashi Suzuki
摘要： A pressure ring includes a first pressure ring fitted in a first ring groove of a piston; and a second pressure ring fitted in a second ring groove of the piston, and positioned between the first pressure ring and an oil ring. The second pressure ring is provided with a groove that extends across a surface of the second pressure ring from an inner peripheral side to an outer peripheral side. The groove is configured such that at least one of a width and a depth of the groove becomes larger toward the outer peripheral side from the inner peripheral side.
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公开(公告)号：US20180299011A1
公开(公告)日：2018-10-18
申请号：US15950744
申请日：2018-04-11
发明人： Hisashi Ohki , Takashi Koyama , Hiroshi Yaguchi , Yusuke Morita , Takashi Suzuki
摘要： A pressure ring includes a first pressure ring fitted in a first ring groove of a piston; and a second pressure ring fitted in a second ring groove of the piston, and positioned between the first pressure ring and an oil ring. The second pressure ring is provided with a groove that extends across a surface of the second pressure ring from an inner peripheral side to an outer peripheral side. The groove is configured such that at least one of a width and a depth of the groove becomes larger toward the outer peripheral side from the inner peripheral side.
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