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公开(公告)号：US20240102528A1
公开(公告)日：2024-03-28
申请号：US17954390
申请日：2022-09-28
Applicant: Hitachi Astemo, Ltd.
Inventor： Joel DONAHUE , Jordan TRUITT , Takeru YOKOTA , Koji MINAMINO
CPC classification number: F16F9/185 , F16F9/3214 , F16F9/3271 , F16F9/348 , F16F9/368 , B60G13/08 , F16F2222/12 , F16F2226/04 , F16F2232/08 , F16F2234/02
Abstract: In this shock absorber, a piston includes a first piston body, a second piston body, and a piston band. The first piston body includes a first passage, a second passage, a first seat, and a second seat. The first seat communicates with the first passage and on which a first damping valve is placed. A second damping valve is placed on the second seat. The second piston body includes a third passage, a fourth passage, a third seat, and a fourth seat. The third seat communicates with the fourth passage and on which a third damping valve is placed. A fourth damping valve is placed on the fourth seat.
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公开(公告)号：US11939013B2
公开(公告)日：2024-03-26
申请号：US17425379
申请日：2019-08-19
Applicant: Hitachi Astemo, Ltd.
Inventor： Shinya Kasai , Kotaro Shiino , Junya Takahashi , Masaru Yamasaki
IPC: B62D6/00
CPC classification number: B62D6/002 , B62D6/008 , B60W2540/18
Abstract: An object of the present invention is to provide a steering control device capable of reducing a steering amount while securing operability of a driver according to a traveling condition. A steering control device 61 forming a steer-by-wire system, which has no physical connection between a steering shaft by a driver and an actual steered angle of a vehicle wheel, the steering control device including an actual steered angle calculation unit 74 that determines the actual steered angle based on a steering angle and a steering torque generated on the steering shaft. The actual steered angle calculation unit 74 controls the actual steered angle based on the steering torque in a region where the steering angle is equal to or smaller than a predetermined value, and controls the actual steered angle based on a parameter different from the steering torque when the steering angle is larger than the predetermined value or a changed steering torque gain from when the steering angle is smaller than the predetermined value.
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公开(公告)号：US20240093751A1
公开(公告)日：2024-03-21
申请号：US18274456
申请日：2022-02-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Takuya HAKOISHI , Shinichi KAGAWA , Eiichi KOMORI
IPC: F16F9/32
CPC classification number: F16F9/32
Abstract: Provided is a bumper cap to be attached to a shock absorber main body, and includes a cover part having an opening at one end, having a bottom part and a through hole penetrating the bottom part at another end, and configured to cover the shock absorber main body, and a plurality of protruding parts protruding from the bottom part of the cover part toward the opening side, and in which a gap is formed between the adjacent protruding parts, in which a suppression part configured to suppress a rotation of a fluid, which has flowed into a space between the inside of the cover part and the shock absorber main body from an outside of the cover part through the through hole, in the cover part is further provided.
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公开(公告)号：US11929687B2
公开(公告)日：2024-03-12
申请号：US17610245
申请日：2020-04-21
Applicant: HITACHI ASTEMO, LTD.
Inventor： Youhei Nishizawa , Akihiro Goto , Yusaku Katsube
CPC classification number: H02M7/003 , H02M1/08 , H02M7/537 , H02M7/5387 , H02P27/06
Abstract: Provided is a power converter that allows a reduction in EMC noise current flowing through a control circuit board. A power converter 1 includes a semiconductor module 52, a capacitor 51, a control circuit board 45a, positive and negative-side bus bars 41, 42 connecting the semiconductor module 52 and the capacitor 51, a base 33 electrically connected to a ground of the control circuit board 45a, the control circuit board 45a being placed on the base 33, and an electrical conductor 35 electrically connected to the base 33 and extending in a stacking direction in which the base 33 and the control circuit board 45a are stacked. The positive and negative-side bus bars 41, 42 extend around the electrical conductor 35 and are connected to the semiconductor module 52.
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公开(公告)号：US20240071095A1
公开(公告)日：2024-02-29
申请号：US18269753
申请日：2021-09-13
Applicant: Hitachi Astemo, Ltd.
Inventor： Jyunya IIZUKA , Takashi OKADA
CPC classification number: G06V20/58 , B60W50/0098 , B60W2420/42 , B60W2420/52 , B60W2554/4049
Abstract: Provided is a vehicle control system which selects detection information of a delay time or reliability according to a content of a driving support function and supplies the detection information to a control processing unit. The vehicle control system includes: an externality recognition device which detects a target around a vehicle; an accuracy-prioritized control unit which controls an in-vehicle control target based on integrated information supplied from the externality recognition device; and a response-prioritized control unit which controls an in-vehicle control target based on prompt report information supplied from the externality recognition device, wherein the externality recognition device includes: a first type sensor which detects the target and outputs first detection information; a second type sensor which detects the target and outputs second detection information, the second type sensor having a longer delay time required to output detection information than the first type sensor; a sensor fusion processing unit which generates the integrated information and the prompt report information based on the first detection information and the second detection information; and a controller which generates an activation instruction of the response-prioritized control unit based on the prompt report information.
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Patent Agency Ranking
公开(公告)号：US11905906B2
公开(公告)日：2024-02-20
申请号：US17297314
申请日：2019-11-19
Applicant: Hitachi Astemo, Ltd.
Inventor： Koichi Tsukio
CPC classification number: F02D41/20 , F02D41/062 , F02D2041/2003 , F02D2041/2051 , F02D2041/2086 , F02D2200/503
Abstract: Provided is a load drive device for controlling a fuel injection device for a vehicle engine and capable of checking an operation of the fuel injection device with high reliability without actually injecting fuel before starting the engine. The load drive device includes: a first switching element that is connected to a high-side of a load; a second switching element that is connected to a low-side of the load; a pre-driver circuit that transmits a drive instruction to the first switching element and the second switching element; and an arithmetic device that transmits a control instruction to the pre-driver circuit, in which a first monitor line and the second monitor line are connected to the arithmetic device, the first monitor line monitoring the drive instruction from the pre-driver circuit to the first switching element before starting an engine, and the second monitor line monitoring the drive instruction from the pre-driver circuit to the second switching element, and the pre-driver circuit has a first control mode in which the first switching element is turned off and the drive instruction is transmitted to the second switching element, and a second control mode in which the second switching element is turned off and the drive instruction is transmitted to the first switching element.
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公开(公告)号：US11904896B2
公开(公告)日：2024-02-20
申请号：US17290835
申请日：2019-11-20
Applicant: HITACHI ASTEMO, LTD.
Inventor： Ryoh Inaba , Toshiharu Sugawara , Hidehiro Toyoda
CPC classification number: B60W60/0016 , B60W40/09 , B60W50/14 , B60W60/0013 , B60W2050/143
Abstract: Provided is a vehicle control device that can ensure riding comfort or safety. A vehicle control device includes a driving plan calculation unit that calculates a drivable area, which is a space in which an own vehicle is safely drivable, based on a driving environment around the own vehicle and a destination of the own vehicle; and a vehicle motion control unit that calculates a target track including a route and a velocity satisfying a predetermined riding comfort condition in the drivable area calculated by the driving plan calculation unit and controls the own vehicle so as to follow the target track.
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公开(公告)号：US11901836B2
公开(公告)日：2024-02-13
申请号：US17405466
申请日：2021-08-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Daiki Kudo , Shogo Tokita , Kohei Nakano
Abstract: A power control unit includes a plurality of power devices, 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 at least one of the plurality of 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, the power devices are arranged in a row along one direction in a straight line, an input bus bar is disposed on one side of the power device in a direction orthogonal to an arrangement direction of the power device, and an output bus bar is disposed on the other side of the power device in the orthogonal direction.
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公开(公告)号：US20240047231A1
公开(公告)日：2024-02-08
申请号：US18266405
申请日：2021-09-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Yasuhiro TSUYUKI , Nobutake TSUYUNO , Eiichi IDE , Yujiro KANEKO
IPC: H01L21/56 , H01L23/473 , H01L25/11 , H01L25/18 , H01L23/31
CPC classification number: H01L21/566 , H01L23/473 , H01L25/115 , H01L25/18 , H01L23/3121 , H01L24/32
Abstract: An electric circuit body including a power semiconductor element joined to one surface of a conductor plate; a sheet member including an insulating layer joined to the other surface of the conductor plate; a sealing member that integrally seals the sheet member, the conductor plate, and the power semiconductor element in a state where a surface of the sheet member opposite to a surface joined to the conductor plate is exposed; a cooling member that cools heat of the power semiconductor element; and a heat conduction member provided between the opposite surface of the sheet member and the cooling member, where the heat conduction member is provided over a first projection region facing the conductor plate and a second projection region facing the sealing member, and a thickness of the heat conduction member is thicker in the second projection region than in the first projection region.
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公开(公告)号：US20240044949A1
公开(公告)日：2024-02-08
申请号：US18267602
申请日：2021-09-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Toshinari TEZUKA
IPC: G01R19/165 , G01R31/388 , G01R35/00
CPC classification number: G01R19/16542 , G01R31/388 , G01R35/00
Abstract: A voltage detection circuit includes a first buffer circuit and second buffer circuit that output a voltage corresponding to an input voltage, a voltage detection unit that detects an output voltage from the first buffer circuit and an output voltage from the second buffer circuit, a reference voltage output circuit capable of selectively outputting one of a plurality of reference voltages different in voltage value from each other, and a switch circuit connected to the first buffer circuit and second buffer circuit. The switch circuit switches an input voltage to the first buffer circuit, from a first input voltage corresponding to a voltage of a first input terminal connected to a measurement target to the reference voltage outputted from the reference voltage output circuit, and switches an input voltage to the second buffer circuit, from a second input voltage to the reference voltage outputted from the reference voltage output circuit.
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