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公开(公告)号：US20240092287A1
公开(公告)日：2024-03-21
申请号：US18253952
申请日：2021-09-07
Applicant: HITACHI ASTEMO, LTD.
Inventor： Motomune SUZUKI , Hideyuki SAKAMOTO
IPC: B60R16/023 , B60W50/04 , B60W50/14
CPC classification number: B60R16/0232 , B60W50/04 , B60W50/14
Abstract: The present disclosure provides a vehicle control device capable of detecting overheating of a CPU or a heat dissipation failure of the cooling mechanism, while suppressing increases in the size, the number of components, and the cost. A vehicle control device according to the present embodiment includes a memory, a CPU, a temperature sensor that is provided internal of the CPU, and a cooling mechanism that cools the CPU. The memory stores therein a standard pattern SP1, a wait time tw, a standard temperature Ts, and a normal temperature difference. The CPU then stores the load of the CPU in the memory, and monitors the load. When the load changes in accordance with the standard pattern SP1, the CPU calculates a temperature difference ΔTse between the standard temperature Ts and an evaluation temperature Te of the temperature sensor at the time point when the wait time tw elapses from the first pattern SP1 has started, and determines a failure when the temperature difference ΔTse is larger than the normal temperature difference.
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公开(公告)号：US11933642B2
公开(公告)日：2024-03-19
申请号：US17559099
申请日：2021-12-22
Applicant: Hitachi Astemo, Ltd.
Inventor： Yosuke Murakami
CPC classification number: G01D5/20 , H03B5/08 , H05K1/181 , H05K2201/10151
Abstract: A two-wire displacement sensor device includes an LC oscillation circuit including a coil whose inductance changes in accordance with a displacement amount of an object and an oscillation unit provided with capacitors and amplifying elements; and an interface unit serving as a signal output unit and a power supply input unit. The interface unit includes a constant current circuit that outputs at least two current values.
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公开(公告)号：US20240086179A1
公开(公告)日：2024-03-14
申请号：US18550882
申请日：2022-01-25
Applicant: Hitachi Astemo, Ltd.
Inventor： Miki YAMADA , Takafumi SUZUKI , Takashi MATSUBARA
Abstract: A software component update system is connected to a first database and a second database and includes a component tree rebuilding unit that rebuilds a software component tree of the second database on the basis of tag information and software component tree information of the first database; a component extraction unit that specifies the software components of the second database requiring update mirroring, on the basis of the rebuilt software component tree; and a file update unit that updates the software component file of the specified software components.
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公开(公告)号：US20240085253A1
公开(公告)日：2024-03-14
申请号：US18275625
申请日：2021-08-31
Applicant: Hitachi Astemo, Ltd.
Inventor： Kenji YOSHIHARA , Hiroyuki ABE , Tsukasa TAKAHASHI , Takeo HOSOKAWA
IPC: G01L1/22
CPC classification number: G01L1/2231 , B60C2019/004
Abstract: An object of the present invention is to provide a strain amount detection device capable of accurately detecting deformations, in multiple directions, of a tire by one strain measuring element. A strain amount detection device according to the present invention includes a disk-shaped base member that holds a strain measuring element, in which the base member acts as a strain body by transmitting strain of a tire to the strain measuring element.
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505.发明公开公开(公告)号：US20240083208A1
公开(公告)日：2024-03-14
申请号：US18274887
申请日：2022-02-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Miho SHIMAZAKI , Milton MUZVIDZIWA , Koichi YAMAKA
IPC: B60G17/015 , H01F7/16
CPC classification number: B60G17/015 , H01F7/16 , B60G2500/11
Abstract: Provided is a solenoid comprising a molded coil, an anchor, and an armature. In the anchor, an outer peripheral convex portion and an inner peripheral convex portion are formed. When no current is being applied, axial distance between the outer peripheral convex portion of the anchor and an outer peripheral portion of the armature which is radially closest to the outer peripheral convex portion is smaller than axial distance between the inner peripheral convex portion of the anchor and an inner peripheral portion of the armature which is radially closest to the inner peripheral convex portion. In other words, timing at which the outer peripheral convex portion of the anchor and the outer peripheral portion of the armature face each other in a radial direction is shifted from timing at which the inner peripheral convex portion of the anchor and the inner peripheral portion of the armature face each other in the radial direction.
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Patent Agency Ranking
公开(公告)号：US11927243B2
公开(公告)日：2024-03-12
申请号：US17270462
申请日：2019-08-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Mikio Yamashita
CPC classification number: F16F9/516 , F16F9/18 , F16F9/32 , F16F9/36 , B60G17/06 , B60G2202/23 , B60G2202/24 , B60G2206/41 , B60G2500/10 , B60G2600/21 , B60G2800/162 , F16F9/364 , F16F2222/04 , F16F2222/12 , F16F2228/066 , F16F2230/02 , F16F2230/30 , F16F2232/08 , F16F2234/02
Abstract: A shock absorber includes a seal member that is slidably in contact with a piston rod, a friction member that is formed of an annular elastic rubber section slidably in contact with the piston rod and an annular base section to which the elastic rubber section is fixed, and an communication path that reduces pressure difference between both sides of the friction member in axial direction. The elastic rubber section is provided with a minimum inner diameter section, a first enlarged diameter section, and a second enlarged diameter section. A force is applied to the piston rod by the friction member such that movement in an outward direction of the cylinder becomes difficult and movement in an inward direction of the cylinder becomes easy.
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公开(公告)号：US20240074034A1
公开(公告)日：2024-02-29
申请号：US18261250
申请日：2021-11-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Akira ISHII , Tomio SAKASHITA
CPC classification number: H05K1/0218 , H05K1/14 , H05K2201/09345
Abstract: An electronic control device includes a plurality of circuit boards that transmit signals to each other and a power supply connector for direct-current power. A ground line connected to a ground terminal of the power supply connector is connected to a ground of one of the plurality of circuit boards by way of a ground of another one of the plurality of circuit boards. In this way, the electronic control device including the plurality of circuit boards needs fewer noise reduction components while enabling easier routing of ground lines.
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508.发明公开公开(公告)号：US20240060782A1
公开(公告)日：2024-02-22
申请号：US18257971
申请日：2021-09-02
Applicant: HITACHI ASTEMO, LTD.
Inventor： Tomoaki WATAHIKI , Shinichi AMAYA
CPC classification number: G01C21/3446 , G01C21/32
Abstract: The present disclosure provides a route conversion apparatus which enables, in a case where a first route based on first map data is converted into a second route based on second map data in a range which is narrower than a section of an electronic map, an error of the converted second route to be detected, and conversion into a correct second route to be performed. The route conversion apparatus 100 includes a route conversion unit 122a that generates a second route RT2 based on location reference information LRI of a first route RT1, a storage unit 121 that stores a route verification model RVM, and a route verification unit 122b that inputs the second map data MD2, the location reference information LRI, and the second route RT2 to the route verification model RVM to verify whether the second route RT2 is correct or incorrect.
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公开(公告)号：US11904949B2
公开(公告)日：2024-02-20
申请号：US17925906
申请日：2020-06-16
Applicant: Hitachi Astemo, Ltd.
Inventor： Satoshi Enomoto
CPC classification number: B62D3/126 , F16H19/04 , F16H2019/046
Abstract: A vehicular steering device includes a turning shaft, a housing storing therein the turning shaft, a stopper provided at a shaft end of the turning shaft, and an annular elastic body. An opening of the housing is formed in a U-shaped cross-sectional shape and in an annular shape opened toward the stopper by an external cylinder portion and an internal cylinder portion. The elastic body includes a first elastic portion and a second elastic portion. The first elastic portion is supported by an inner circumferential surface of the external cylinder portion and the bottom surface, and is provided with a first clearance from an outer circumferential surface of the internal cylinder portion. The second elastic portion extends toward the stopper from the first elastic portion, and is provided with a second clearance larger than the first clearance from the inner circumferential surface of the external cylinder portion.
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公开(公告)号：US11901837B2
公开(公告)日：2024-02-13
申请号：US17464067
申请日：2021-09-01
Applicant: Hitachi Astemo, Ltd.
Inventor： Kazunari Kurokawa , Takuma Kato , Masahiro Shimada , Morifumi Shigemasa , Akihiro Suzuki
Abstract: A power control unit includes a power device, a heat dissipation member disposed to face the power device with an insulating resin member interposed therebetween, and a plurality of plate-shaped bus bars each of which has one end connected to the power device, in which a plurality of input bus bars connected to an input terminal of the power device are provided as the bus bar, and at least one of the plurality of input bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the power device, and is disposed with respect to the heat dissipation member with the insulating resin member interposed therebetween.
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