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211.发明授权公开(公告)号：US11726794B2
公开(公告)日：2023-08-15
申请号：US17641252
申请日：2020-08-14
Applicant: Hitachi Astemo, Ltd.
Inventor： Masahiro Doi , Yuri Moizumi , Takeo Yamashita
IPC: G06F9/44 , G06F9/4401 , G06F1/26 , H02J7/00
CPC classification number: G06F9/4401 , G06F1/26 , H02J7/0063
Abstract: To obtain a highly reliable electronic control device capable of reliably causing a microcomputer to perform normal termination and normal re-activation by controlling a power supply voltage. According to the present invention, an electronic control device 25 includes a microcomputer 18, a power supply control unit 20 that controls a power supply voltage of the microcomputer, and a capacitor 19 provided between the power supply control unit and the microcomputer. The power supply control unit 20 includes a power supply unit 24 that supplies a first power supply voltage V1 to the microcomputer by turning ON an activation signal for activating the microcomputer, and stops the supply of the power supply voltage by turning the activation signal OFF, a reset control unit 14 that generates a Low reset signal by turning the activation signal OFF, and a discharge control unit 12 that discharges electric charges of the capacitor when acquiring the Low reset signal.
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公开(公告)号：US20230252153A1
公开(公告)日：2023-08-10
申请号：US18010297
申请日：2021-02-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Shun KINUGASA , Kenji ANDO , Yusuke ABE
CPC classification number: G06F21/572 , G06F8/654 , G06F2221/033
Abstract: Provided is a technique for enabling software having different memory maps to be written in a nonvolatile memory of an electronic control device in reprogramming of control software.
The electronic control device includes a microcomputer including a CPU and a nonvolatile memory. The nonvolatile memory includes activation software, control software, and validity confirmation information for confirming validity of the control software. A storage area of the validity confirmation information in the nonvolatile memory is different from a storage area of the activation software.-
公开(公告)号：US20230251120A1
公开(公告)日：2023-08-10
申请号：US18008027
申请日：2021-01-29
Applicant: Hitachi Astemo, Ltd.
Inventor： Akira UENODAN , Naoki SAITO , Takahiro MIKI , Nobuaki GORAI
Abstract: According to the present invention, it is possible to provide a flow rate measurement device capable of accurately measuring a flow rate of a measurement target gas by improving anti-contamination property. A flow rate measurement device (20) of the present invention includes a board (304) disposed along a flow direction of a measurement target gas (2) in a sub passage (134), a support body (401) that is disposed to face one surface (304a) of the board, and a flow rate sensor (411) that is supported by the support body, faces the one surface of the board, and measures a flow rate of the measurement target gas passing between the support body and the board. The sub passage includes a first passage portion D1 between the support body and one surface of the board, a second passage portion D2 between the other surface of the board and a passage wall surface of the sub passage opposed thereto, and a third passage portion D3 between the support body and the passage wall surface of the sub passage that faces the support body. The support body has a first side surface (407) that faces in the flow direction of the measurement target gas in the sub passage.
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公开(公告)号：US20230242140A1
公开(公告)日：2023-08-03
申请号：US18101155
申请日：2023-01-25
Applicant: HONDA MOTOR CO., LTD. , HITACHI ASTEMO, LTD.
Inventor： Masayuki NAKATSUKA , Takeshi KIBAYASHI , Keiichiro NAGATSUKA , Hirofumi IKOMA
CPC classification number: B60W50/14 , G06V20/584 , B60W2050/143 , B60W2050/146 , B60W2420/42
Abstract: A driving assistance device comprises: a recognition unit configured to recognize a lighting color of a traffic light from an image captured by a camera that images an outside world of a vehicle; and an alarm output unit configured to output an alarm to a driver of the vehicle when the lighting color is red and there is no braking operation of the vehicle. When a plurality of traffic lights are recognized from the image by processing of the recognition unit, the alarm output unit controls the output of the alarm based on a combination of lighting colors of the plurality of traffic lights.
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公开(公告)号：US20230242071A1
公开(公告)日：2023-08-03
申请号：US18008220
申请日：2021-03-18
Applicant: Hitachi Astemo, Ltd.
Inventor： Tetsuya YAMADA , Mikio KATAOKA , Nobuyoshi MORITA
Abstract: The present disclosure provides a vehicle control system capable of safely and forcibly controlling a vehicle. A vehicle control system VCS includes a mode setting unit 56 configured to output a forced mode signal upon receiving a forced control instruction from the outside of a vehicle V via a communication device 30, and a forced operation unit 58 configured to output a forced operation signal of forcibly operating the vehicle V to an operation control unit 20. Further, the vehicle control system VCS includes a signal selection unit 59 configured to allow all the operation signals to pass therethrough before receiving the forced mode signal, and block at least a part of the operation signals and allow the forced operation signal instead of the blocked operation signal to pass therethrough after receiving the forced mode signal. The vehicle control system VCS controls an operation of the vehicle V by controlling the operation control unit 20 based on the operation signal or the forced operation signal passing through the signal selection unit 59.
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Patent Agency Ranking
公开(公告)号：US20230241940A1
公开(公告)日：2023-08-03
申请号：US18296114
申请日：2023-04-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuichiro MINAKUCHI
IPC: B60G17/0165 , B60G17/018
CPC classification number: B60G17/0165 , B60G17/018 , B60G2500/10 , B60G2600/1875
Abstract: A suspension control device which controls an operation of a suspension of a vehicle includes an operation-induced state quantity estimation portion which estimates an operation-induced state quantity caused by an operation of a vehicle, a road surface-induced state quantity estimation portion which estimates a road surface-induced state quantity caused by a road surface, an operation-induced state quantity conversion portion which converts the operation-induced state quantity into an operation-induced required damping force, a road surface-induced state quantity conversion portion which converts the road surface-induced state quantity into a road surface-induced required damping force, and a current value calculation portion which determines a current value to be applied to the suspension with reference to the operation-induced required damping force and the road surface-induced required damping force.
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公开(公告)号：US20230228238A1
公开(公告)日：2023-07-20
申请号：US18009633
申请日：2021-02-05
Applicant: Hitachi Astemo, Ltd.
Inventor： Ryohei MATSUTAKE , Kenichi GUNJI , Masashi SUGAYA
CPC classification number: F02M61/10 , F02M51/06 , F02M61/161
Abstract: Provided is a prestroke adjustment method for a fuel injection valve capable of reducing variations in a prestroke amount regardless of the level of machining accuracy of a component. The prestroke adjustment method adjusts a prestroke amount D2 of a fuel injection valve 1 including a gap forming member 50 that forms a gap G2 defining a prestroke between a valve member 30 and engagement portions 33a and 423a of a movable core 42 by a second portion 52a abutting on the movable core 42 in a state where a first portion 51a is positioned at a reference position 33b of the valve member 30. In the prestroke adjustment method, a load L in the direction from the first portion 51a toward the reference position 33b of the valve member 30 is applied to the gap forming member 50 assembled to the valve member 30 to plastically deform the gap forming member 50, thereby shortening the relative length between the first portion 51a and the second portion 52a and setting the prestroke amount D2 to the target value T2.
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公开(公告)号：US20230228227A1
公开(公告)日：2023-07-20
申请号：US18009205
申请日：2021-02-09
Applicant: Hitachi Astemo, Ltd.
Inventor： Fumihiro ITABA , Osamu MUKAIHARA
Abstract: In abnormality determination of determining whether fuel injection has been executed normally, making an erroneous determination is prevented. A fuel injection control device 127 that controls a plurality of fuel injection valves each having a coil for energization includes a drive state detection unit 211 that detects a drive state of a fuel injection valve, from an energization current or an applied voltage of the coil of the fuel injection valve, an injection abnormality detection unit 213 that detects an injection abnormality of the fuel injection valve by comparing a fuel injection instruction with the drive state of the fuel injection valve, and an injection abnormality detection execution determining unit 212 that based on a state of an internal combustion engine, determines whether or not to permit execution of injection abnormality detection by the injection abnormality detection unit 213.
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公开(公告)号：US20230226868A1
公开(公告)日：2023-07-20
申请号：US17928878
申请日：2021-04-16
Applicant: Hitachi Astemo, Ltd.
Inventor： Yasuaki AOYAMA , Ryosuke HOSHI , Nobuyuki ICHIMARU
IPC: B60G15/04 , H02K41/03 , B60G17/06 , B60G17/015
CPC classification number: B60G15/04 , H02K41/031 , B60G17/06 , B60G17/0157 , B60G2202/25 , B60G2202/422 , B60G2204/62 , B60G2206/41 , B60G2500/104 , B60G2600/24 , B60G2800/162
Abstract: The present invention provides an electromagnetic suspension capable of suppressing interference with other components and devices, being mounted in a narrow space, and having a small thrust pulsation, a large thrust, and a high damping performance even for a high-frequency vibration source. An electromagnetic suspension of the present invention includes a linear motor that includes an armature and a permanent magnet portion, the armature including a winding and a magnetic body, the permanent magnet portion being disposed on an outer periphery of the armature and including a permanent magnet and a cylindrical magnetic body, and the armature and the permanent magnet portion being relatively linearly driven in the linear motor, in which a recess recessed from an outer peripheral portion of the cylindrical magnetic body and a protrusion protruding from the outer peripheral portion are disposed on the same circumference of the outer peripheral portion of the cylindrical magnetic body.
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公开(公告)号：US20230213083A1
公开(公告)日：2023-07-06
申请号：US18182105
申请日：2023-03-10
Applicant: Hitachi Astemo, Ltd.
Inventor： Tsubasa Kimura
CPC classification number: F16F13/02 , B29C45/64 , B29C45/261 , F16F2230/0029 , B29L2031/721
Abstract: A shock absorber, including: a first cylindrical body; a second cylindrical body surrounding an outer peripheral surface of the first cylindrical body and provided movably in a direction of an axis of the first cylindrical body with respect to the first cylindrical body; a spring provided between the outer peripheral surface of the first cylindrical body and an inner peripheral surface of the second cylindrical body and applying a force in a direction of separating the first cylindrical body and the second cylindrical body; and a spring seat portion that is a cylindrical body provided between the outer peripheral surface of the first cylindrical body and the inner peripheral surface of the second cylindrical body and supporting an end portion of the spring in the axis direction, the spring seat portion being made of resin and being arranged movably in a direction intersecting the axis direction.
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