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公开(公告)号：US20250047174A1
公开(公告)日：2025-02-06
申请号：US18717755
申请日：2021-12-28
Applicant: HITACHI ASTEMO, LTD.
Inventor： Takuro KANAZAWA , Kenichirou NAKAJIMA , Tadashi SUGIURA
Abstract: An electric drive device includes a motor, an inverter, cooling water paths, a housing, a connector that connects the inverter and an external device, a fuse member connected to a bus bar extending from the inverter, and a connecting member including the same; in which the housing includes an accommodating portion that accommodates at least a part of the motor and the inverter, the connecting member is provided on a side wall of the housing, the fuse member is accommodated in the accommodating portion, and the inverter, the fuse member, and the connector are electrically connected.
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公开(公告)号：US12219744B2
公开(公告)日：2025-02-04
申请号：US18015644
申请日：2021-05-31
Applicant: Hitachi Astemo, Ltd.
Inventor： Yusuke Takahashi , Yoshio Kawai
Abstract: In order to prevent a short-circuit failure between a conductive connecting portion (1) that is provided as a countermeasure against external electrical noises and an electronic circuit, a structure is adopted where a large number of electronic components (8) are mounted on a circuit board (5) that is mounted on a base (7), a metal cover (6) is disposed so as to cover upper portions of the electronic components (8), opening portions (3) are formed in the circuit board (5) at four positions on a periphery of the circuit board (5), protruding members (12) that are integrally formed with the base (7) are disposed at four positions respectively in alignment with the positions where the opening portions (3) are formed, the protruding members (12) are made to pass through the opening portions (3) at four positions from a back surface side of the circuit board (5) to protrude to a front surface side of the circuit board 5, the conductive connecting portions (1) are arranged in an outside direction with respect to the protruding members (12) at four positions on the board, the protruding members (12) are disposed between the conductive connecting portions (1) and the electronic circuit so as to electrically connect the metal cover (6), the conductive connecting portion (1), and a ground circuit to each other.
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33.发明授权公开(公告)号：US12218027B2
公开(公告)日：2025-02-04
申请号：US17636124
申请日：2020-04-20
Applicant: HITACHI ASTEMO, LTD.
Inventor： Minami Teranishi , Hideyuki Sakamoto , Shinya Kawakita
IPC: H05K7/20 , H01L23/367 , H01L23/467
Abstract: An electrical device includes a first housing which has therein a first circuit board on which a first electronic component is mounted, a second housing which has therein a second circuit board on which a second electronic component is mounted, and fans which send air passing between the first housing and the second housing. The first housing has a plurality of fins facing the second housing. The second housing has a plurality of fins facing the first housing. In at least one of cross sections of the first circuit board in a thickness direction, the electrical device has a structure having a region in which the fin of the first housing is longer than the fin of the second housing and a region in which the fin of the first housing is shorter than the fin of the second housing.
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公开(公告)号：US20250035017A1
公开(公告)日：2025-01-30
申请号：US18689786
申请日：2022-07-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Masatoshi MATSUO , Masafumi KURITA
Abstract: Provided is a balancer device for an internal combustion engine, which includes: an upper-side housing to be mounted to an internal combustion engine; a lower-side housing fixed to the upper-side housing; a balancer main body accommodated in a space defined by the upper-side housing and the lower-side housing; and an oil pump fixed at least to the upper-side housing. An end surface portion of the upper-side housing and an end surface portion of the oil pump are mounted in contact with each other, and an end surface portion of the lower-side housing and the end surface portion of the oil pump are mounted to each other so as to define a predetermined gap.
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公开(公告)号：US12213294B2
公开(公告)日：2025-01-28
申请号：US17605650
申请日：2020-03-31
Applicant: HITACHI ASTEMO, LTD.
Inventor： Masahiro Toyama , Yuki Nakamura , Yutaka Uematsu , Hideyuki Sakamoto
Abstract: An electronic control device includes a conductive casing; a circuit board which is provided in the casing, and on which an electronic component including an integrated circuit is mounted; and a conductive conductor component that is provided on the circuit board, is disposed at a position higher than the electronic component, and has an elongated shape, in which a distance between the conductor component and the casing is shorter than a distance between the conductor component and the circuit board.
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Patent Agency Ranking
公开(公告)号：US12213279B2
公开(公告)日：2025-01-28
申请号：US17760581
申请日：2020-06-18
Applicant: HITACHI ASTEMO, LTD.
Inventor： Shinya Kawakita , Hideyuki Sakamoto , Minami Teranishi , Miki Hiraoka
IPC: H05K7/20
Abstract: An electronic control device includes a base, a first fan and a second fan provided on one surface, a plurality of first heat-dissipating fins provided on the one surface in a first region including a region between first and second fans such that the plurality of first heat-dissipating fins are provided in the region between the first second fans, and a plurality of second heat-dissipating fins provided on the one surface and in a second region. The plurality of first heat-dissipating fins guide a refrigerant sent by one of the first and second fans toward a remaining one of the first and second fans in the first region, and the plurality of second heat-dissipating fins provided in the second region have a structure for guiding a refrigerant flowing in from the first fan or the second fan away from the first fan and the second fan.
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公开(公告)号：US20250029401A1
公开(公告)日：2025-01-23
申请号：US18709662
申请日：2022-11-04
Applicant: Hitachi Astemo, Ltd.
Inventor： Felipe GOMEZCABALLERO , Haruki MATONO , Takeshi NAGASAKI
Abstract: Provided is an image processing device that is capable of storing three-dimensional information relating to a road surface (3D road surface information), transforming/converting the stored 3D road surface information into a current time by using motion of a vehicle, using the three-dimensional information from the road surface together with monocular-based distance estimation processing, increasing the distance measurement accuracy without requiring a special sensor while maintaining the obstacle detection accuracy, and, in particular, supporting a case where an ego vehicle is turning at an intersection that may include a sidewalk area (that is, which includes a difference in ground height relative to a roadway area) that requires accurate monocular-based distance measurement for a detected obstacle. The obstacle ranging unit 161 performs monocular-based distance estimation processing, and uses the 3D road surface information stored via the 3D road surface information acquisition unit 131 and converted to the current time by the 3D road surface information management unit 141.
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公开(公告)号：US20250023406A1
公开(公告)日：2025-01-16
申请号：US18710078
申请日：2021-11-16
Applicant: Hitachi Astemo, Ltd.
Inventor： Yukihiro YOSHINARI , Noriaki HINO , Takuya MIYAGI
Abstract: A rotor of a rotating electric machine includes a pair of magnets arranged in a V shape and a rotor core provided with magnet holes into which the magnets are inserted. The rotor core has, on an outside in a radial direction, a magnetic gap between the rotor core and an outermost diameter corner located on an outermost side in the radial direction among corners of the magnet, and has a protrusion formed so as to protrude toward the magnet between a first outermost diameter portion closer to a magnetic pole center of the rotor than the outermost diameter corner in an outer diameter of the magnetic gap and a second outermost diameter portion closer to a magnetic pole boundary of the rotor than the outermost diameter corner in an outermost diameter of the magnetic gap, and the protrusion faces a main surface of the magnet.
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公开(公告)号：US20250022116A1
公开(公告)日：2025-01-16
申请号：US18714260
申请日：2022-12-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Hideaki ONOZUKA , Takamasa IMAIZUMI , Hiroyuki HAYASHI
Abstract: One aspect of the present invention acquires a plurality of virtual images when an imaging target is imaged by a virtual imaging portion while a posture of three-dimensional data is changed to each of a plurality of specific postures.
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公开(公告)号：US20250018760A1
公开(公告)日：2025-01-16
申请号：US18274068
申请日：2022-01-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuki YOSHIDA , Ryusuke HIRAO , Shingo NASU
IPC: B60G17/016
Abstract: A suspension control unit includes a slip state detection apparatus configured to detect a slip state of a wheel. The slip state detection apparatus includes a second slip ratio calculation portion, a slip ratio distribution calculation portion, and a third slip ratio calculation portion. The second slip ratio calculation portion determines a tire characteristic-considered slip ratio (a second slip ratio) according to a longitudinal acceleration of a vehicle detected by a longitudinal acceleration sensor (a longitudinal acceleration) and a tire characteristic (a slip ratio coefficient). The slip ratio distribution calculation portion calculates a percentage of a slip ratio of each wheel. The third slip ratio calculation portion determines a corrected slip ratio of each wheel (a third slip ratio) by correcting the tire characteristic-considered slip ratio (the second slip ratio) according to the percentage of the slip ratio of each wheel calculated according to a rotational velocity signal of each wheel.
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