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公开(公告)号：US20240344586A1
公开(公告)日：2024-10-17
申请号：US18682969
申请日：2022-06-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Mikio YAMASHITA
CPC classification number: F16F9/5126 , F16F9/348
Abstract: The shock absorber includes a cylinder, a piston, a first passage through which a flow of the working fluid occurs due to movement of the piston in one direction, a first damping valve providing resistance to a flow of the working fluid from a chamber on an upstream side to a chamber on a downstream side of the first passage, a back pressure chamber causing an internal pressure to act on the first damping valve in a valve closing direction, a bottomed cylindrical case member having an opening at one end, the first damping valve disposed in the opening, and the back pressure chamber formed therein, a second passage introducing the working fluid into the back pressure chamber from the chamber on the upstream side, a second damping valve seated on a first seat part formed on a bottom portion of the case member.
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公开(公告)号：US12118801B2
公开(公告)日：2024-10-15
申请号：US17767043
申请日：2020-09-08
Applicant: HITACHI ASTEMO, LTD.
Inventor： Takeshi Endo , Haruki Matono , Takeshi Nagasaki
CPC classification number: G06V20/58 , G06T7/55 , G06V10/255 , G06V10/267 , G06V20/588 , G06V20/64 , G08G1/166 , G06T2207/10016 , G06T2207/30252
Abstract: Provided is an object recognition device capable of accurately estimating a distance from an own vehicle to an object such as a pedestrian. There are provided: a part specification unit 104 that determines a specific part region in an object by analyzing an image of a region corresponding to the object detected by an overlapping region object detection unit 103; an image information storage unit 105 that stores image information on the part region determined by the part specification unit 104; a three-dimensional information acquisition unit 106 that acquires three-dimensional information of the part region specified by the part specification unit 104 on the basis of the distance information acquired by a distance information acquisition unit 102; a non-overlapping region object detection unit 107 that detects the part region specified by the part specification unit 104 with reference to the image information stored in the image information storage unit 105 for the non-overlapping region; and a distance calculation unit 108 that calculates a distance to an object including the part region on the basis of the detection region information on an image of the part region detected by the non-overlapping region object detection unit 107 and the three-dimensional information acquired by the three-dimensional information acquisition unit 106.
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公开(公告)号：US12115957B2
公开(公告)日：2024-10-15
申请号：US17435797
申请日：2020-03-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Daisuke Goto , Haruhiko Fujita
Abstract: A rear electric brake electronic control unit (ECU) includes a delay circuit between a microcomputer of the rear electric brake ECU and a switch for driving a solenoid of a parking mechanism. The delay circuit is configured to delay a signal for driving the switch. The rear electric brake ECU further includes a diagnosis circuit for diagnosing an actuation state of the microcomputer. The diagnosis circuit is able to shut off a power supply to the solenoid regardless of a state of a signal of the solenoid if the actuation state of the microcomputer is abnormal.
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公开(公告)号：US20240338292A1
公开(公告)日：2024-10-10
申请号：US18579730
申请日：2022-03-10
Applicant: c/o Hitachi Astemo, Ltd.
Inventor： Satoshi IIMURO , Yuki HORITA , Mikio KATAOKA
CPC classification number: G06F11/3476 , G06F11/3013 , G06F2212/173
Abstract: An in-vehicle processing device mounted in a vehicle includes a calculation unit that calculates output data based on input data, a storage unit that stores data, a data management unit that manages data stored in the storage unit, and a log collection unit that collects a log in the in-vehicle processing device and outputs the log to outside. The data management unit inputs data stored in the storage unit to the calculation unit as the input data and stores the output data output from the calculation unit in the storage unit, and the log collection unit refers to and acquires data stored in the storage unit and outputs the log to the outside.
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公开(公告)号：US12112885B2
公开(公告)日：2024-10-08
申请号：US17597076
申请日：2020-04-20
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuichiro Tanaka , Shinji Seto , Norio Nakazato , Shunsuke Mori , Yohei Katayama , Teruaki Yamanaka , Motohiro Hirao
CPC classification number: H01F5/06 , H01F5/02 , H01F27/325 , H01F7/16
Abstract: The solenoid coil includes a coil having a first end surface and a second end surface on its both ends in an axial direction, a member which is in contact with the first end surface, and has a groove through which the wire material of the coil passes, and an insulating resin formed to coat at least an outer circumferential surface and the second end surface of the coil. The resin with a substantially U-shaped section is continuously coated on at least a part of an inner circumferential surface of the coil via an area from the outer circumferential surface to the second end surface.
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Patent Agency Ranking
公开(公告)号：US12109861B2
公开(公告)日：2024-10-08
申请号：US17697408
申请日：2022-03-17
Applicant: Hitachi Astemo, Ltd.
Inventor： Hajime Tsukahara
IPC: B60G17/018 , B60G17/019
CPC classification number: B60G17/018 , B60G17/019 , B60G2300/12 , B60G2400/25 , B60G2400/90 , B60G2401/25 , B60G2600/082
Abstract: A calibration device includes: a first coefficient calculation unit, a first output unit, an ideal value calculation unit, a second coefficient calculation unit configured to calculate a second coefficient by dividing a second output value by the ideal value, the second output value being an actual output value of the detector when the extension/contraction amount of the suspension device is the first extension/contraction amount, and a calibration unit configured to calculate a calibration value which is an output value after calibration of the detector when the suspension device has the minimum extension/contraction amount, by using the second output value, the first extension/contraction amount, the operation amount, the first output value, and the second coefficient.
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公开(公告)号：US12104652B2
公开(公告)日：2024-10-01
申请号：US17291048
申请日：2019-10-30
Applicant: Hitachi Astemo, Ltd.
Inventor： Daiki Tsutsumi , Yasushi Akita , Kenichiro Ishikura
IPC: F16D1/10
CPC classification number: F16D1/101 , F16D2001/103
Abstract: In a propeller shaft, a crowning portion of a male spline portion is provided in a predetermined range including a front end portion in an axial direction, and a tooth tip surface is shaped in such a manner that a tooth thickness thereof gradually increases from the front end portion toward an intermediate portion of the male spline portion in the axial direction.
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公开(公告)号：US20240322734A1
公开(公告)日：2024-09-26
申请号：US18263222
申请日：2021-12-29
Applicant: HITACHI ASTEMO, LTD.
Inventor： Nobuki SATO , Fumiya IIJIMA , Nagamori HIRAKI
IPC: H02P29/028 , B62D5/04 , H04W4/48
CPC classification number: H02P29/028 , B62D5/046 , B62D5/0481 , H04W4/48
Abstract: An electronic control device for vehicle-mounted equipment according to the present invention includes: a first microcomputer that operates by receiving power supply through a first power source connector; a second microcomputer that operates by receiving power supply through a second power source connector; a first voltage monitoring line that connects an output end of the second power source connector and the first microcomputer; and a second voltage monitoring line that connects an output end of the first power source connector and the second microcomputer. With this configuration, both the first microcomputer and the second microcomputer can accurately determine the state of voltage supply to the other microcomputer.
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公开(公告)号：US20240318701A1
公开(公告)日：2024-09-26
申请号：US18574518
申请日：2022-07-22
Applicant: Hitachi Astemo, Ltd.
Inventor： Masato HIGUMA , Atsushi KOSHIZAKA , Keiji KAWAHARA , Yu ISHIMARU
CPC classification number: F16F9/3228 , F16F9/19 , F16F9/3271 , F16F9/3221 , F16F2222/12 , F16F2226/045 , F16F2230/0005
Abstract: A first annular groove is filled with a material of a solenoid case and a first joined portion is formed after a second annular groove is filled with the material of the solenoid case and a second joined portion is formed. This allows a load applied to a piston rod when the material of the solenoid case flows into the first annular groove to be partially received by the second joined portion, thereby contributing to reducing a reaction force received by the piston rod and thus preventing the deformation of an upper-end portion of the piston rod due to the reaction force received by the piston rod.
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60.发明授权公开(公告)号：US12097591B2
公开(公告)日：2024-09-24
申请号：US17946694
申请日：2022-09-16
Applicant: Hitachi Astemo, Ltd. , HONDA MOTOR CO., LTD.
Inventor： Hirokatsu Kameda , Toshihiro Ogawa , Shinji Kasatori , Hideki Kato , Keiichi Maekawa , Kentaro Tokita , Kenji Nagaoka , Atsushi Murakami
CPC classification number: B24C1/10 , B05D3/12 , B21F35/00 , B60G11/14 , C21D7/06 , B60G2206/426 , G05B2219/32182 , Y10T29/479 , Y10T29/49611 , Y10T29/49982
Abstract: The invention relates to a method for manufacturing a coil spring and for determining a propelling condition for a shot medium. In a case where it is confirmed that the coating film remains in a third step, at least one or more of conditions of the shot peening treatment including a propelling speed of the shot medium, a propelling time of the shot medium, a material of the shot medium, and an average particle diameter of the shot medium are changed and the second step and the third step are repeated until the coating film does not remain. In a case where it is confirmed that the coating film does not remain in the third step, the condition of the shot peening treatment in the second step in which the coil spring is obtained with no remaining coating film is determined as the propelling condition for the shot medium.
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