公开(公告)号：US20220278665A1

公开(公告)日：2022-09-01

申请号：US17633123

申请日：2020-05-11

Applicant: HITACHI ASTEMO, LTD.

Inventor： Yutaka UEMATSU ,  Hideyuki SAKAMOTO

IPC: H03H7/01 ,  H04B3/02 ,  B60R16/023

Abstract: A signal transmission circuit includes a common frequency filter configured to filter a signal centering on a common frequency that is an anti-resonance frequency; a first frequency filter configured to filter a signal centering on a first frequency that is an anti-resonance frequency; a second frequency filter configured to filter a signal centering on a second frequency that is an anti-resonance frequency; a first route connected to a first signal wiring line configured to transmit a digital signal; and a second route connected to a second signal wiring line configured to transmit a digital signal. The first route has the common frequency filter connected to a power supply circuit, and the first frequency filter disposed between the common frequency filter and the first signal wiring line and connected in series to the common frequency filter, the second route has the common frequency filter, and the second frequency filter disposed between the common frequency filter and the second signal wiring line and connected in series to the common frequency filter, and both the first frequency and the second frequency are equal to or higher than the common frequency.

公开(公告)号：US20220248575A1

公开(公告)日：2022-08-04

申请号：US17605650

申请日：2020-03-31

Applicant: HITACHI ASTEMO, LTD.

Inventor： Masahiro TOYAMA ,  Yuki NAKAMURA ,  Yutaka UEMATSU ,  Hideyuki SAKAMOTO

IPC: H05K9/00 ,  H05K1/02 ,  H05K1/11

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.

公开(公告)号：US20220017108A1

公开(公告)日：2022-01-20

申请号：US17414814

申请日：2019-10-11

Applicant: Hitachi Astemo, Ltd.

Inventor： Shigenobu KOMATSU ,  Hiroshi SHINODA ,  Hideyuki SAKAMOTO ,  Masaru KOKUBO ,  Hidetatsu YAMAMOTO

IPC: B60W50/02 ,  B60W50/029 ,  G07C5/08

Abstract: Provided is an in-vehicle control system capable of reducing an increase in cost accompanying advancement of a fallback operation. Therefore, the in-vehicle control system includes: a plurality of control circuits 3 and 4 respectively including control units that perform data communication with each other; an external environment recognition sensor a5; and a plurality of wirings 11, 12, 13, and 14 connecting the external environment recognition sensor a5 and the plurality of control circuits 3 and 4. The plurality of control circuits 3 and 4 include: a first power supply unit that supplies power to the external environment recognition sensor a5 via a corresponding wiring among the plurality of wirings 11, 12, 13, and 14; and a first detection unit that detects an abnormality related to the power supplied to the external environment recognition sensor a5. A control unit in a control device including a first detection unit that has detected the abnormality is controlled to acquire data of the external environment recognition sensor a5 from a control unit included in the other control device.

公开(公告)号：US20250147749A1

公开(公告)日：2025-05-08

申请号：US18836908

申请日：2022-08-24

Applicant: HITACHI ASTEMO, LTD.

Inventor： Tatsuaki NAGAI ,  Hideyuki SAKAMOTO ,  Yuji FUKUSHIMA ,  Tsutomu KANEKO ,  Takaaki NOKAIDO

IPC: G06F8/65

Abstract: An object of the present invention is to obtain an update management system that makes it possible to perform writing and switching of a program in an ECU configuration having redundancy while a vehicle is traveling, even when the ECU configuration does not have a double-sided memory structure. An update management system of the present invention is mounted on a vehicle and includes: a plurality of arithmetic operation devices; and an update management device that controls the plurality of arithmetic operation devices. The plurality of arithmetic operation devices include at least a first arithmetic operation device and a second arithmetic operation device. The update management device determines whether the second arithmetic operation device is executing a redundant process while the vehicle is traveling, and when determining that the second arithmetic operation device is not executing the redundant process, the update management device restricts execution of the redundant process by the first arithmetic operation device and updates a program stored in the second arithmetic operation device.

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.

公开(公告)号：US20230232589A1

公开(公告)日：2023-07-20

申请号：US18009911

申请日：2021-05-20

Applicant: Hitachi Astemo, Ltd. ,  HITACHI, LTD.

Inventor： Ryujo SUGAHARA ,  Eiji ICHIKAWA ,  Hideyuki SAKAMOTO ,  Daisuke TANAKA ,  Hidetatsu YAMAMOTO ,  Michihito WATARAI ,  Minami TERANISHI

IPC: H05K7/20

CPC classification number: H05K7/20409 ,  H05K7/20154

Abstract: An electronic control device includes a housing including a first region in which heat dissipation fins are formed on one side and an electronic component generating the largest amount of heat is in thermal contact with the other side, and a second region in which an electronic component is in thermal contact with the one side and the other side.

公开(公告)号：US20230209738A1

公开(公告)日：2023-06-29

申请号：US18008464

申请日：2021-05-20

Applicant: Hitachi Astemo, Ltd. ,  HITACHI, LTD

Inventor： Ryujo SUGAHARA ,  Hidetatsu YAMAMOTO ,  Daisuke TANAKA ,  Eiji ICHIKAWA ,  Michihito WATARAI ,  Hideyuki SAKAMOTO

IPC: H05K5/00 ,  H05K1/14 ,  H05K5/06

CPC classification number: H05K5/0069 ,  H05K1/14 ,  H05K5/069

Abstract: An electronic control device includes: a first board on which a bus bridge and an external communication connector are mounted; a second board on which an accelerator SoC is mounted, the second board being electrically connected to the first board; and a B-to-B connector capable of performing signal transmission between the bus bridge and the accelerator SoC.

公开(公告)号：US20230031292A1

公开(公告)日：2023-02-02

申请号：US17787852

申请日：2020-11-24

Applicant: HITACHI ASTEMO, LTD

Inventor： Yuki Nakamura ,  Masahiro TOYAMA ,  Hiroki FUNATO ,  Hideyuki SAKAMOTO ,  Shina KAWAKITA

IPC: H05K5/00 ,  H05K1/02 ,  H05K9/00 ,  H01L23/66

Abstract: An electronic control device including a circuit substrate having a signal wiring and a ground wiring; at least one connector having a signal conductor and a ground conductor respectively connected to the signal wiring and the ground wiring of the circuit substrate on one end side and extending on the other end side; a housing including an accommodating portion that accommodates the circuit substrate and the at least one connector, in which a radio wave path through which a leakage electromagnetic wave propagates from one end on the circuit substrate side toward the other end on the side opposite to the circuit substrate side of the at least one connector is formed in an internal space at the periphery of the at least one connector; and a leakage electromagnetic wave attenuating structure provided between the housing and the at least one connector; where the leakage electromagnetic wave attenuating structure includes a plurality of conductors that are arrayed along a direction in which the leakage electromagnetic wave propagates from the one end of the at least one connector, and attenuate the leakage electromagnetic wave propagating through the radio wave path.

公开(公告)号：US20220354006A1

公开(公告)日：2022-11-03

申请号：US17622174

申请日：2020-05-13

Applicant: HITACHI ASTEMO, LTD.

Inventor： Yuki NAKAMURA ,  Masahiro TOYAMA ,  Isao HODA ,  Hiroki FUNATO ,  Umberto PAOLETTI ,  Hideyuki SAKAMOTO ,  Yutaka UEMATSU

IPC: H05K5/00 ,  H05K1/18 ,  H05K9/00

Abstract: A signal transmission circuit includes: a circuit board stored in a housing; a connector which is mounted on the circuit board and includes a first signal terminal and a first ground terminal; and an integrated circuit which is mounted on the circuit board and includes a second signal terminal and a second ground terminal. The first signal terminal and the second signal terminal are connected to each other by a signal wiring arranged on the circuit board. The first around terminal and the second ground terminal are connected to each other by a ground wiring arranged in a predetermined range including a portion immediately above or immediately below the signal wiring in the circuit board. At least a part of the ground wiring immediately above or immediately below the signal wiring has a high impedance structure formed to be wider than the signal wiring and narrower than a combined width of the first signal terminal and the first ground terminal.

公开(公告)号：US20220089179A1

公开(公告)日：2022-03-24

申请号：US17425525

申请日：2020-01-15

Applicant: HITACHI ASTEMO, LTD.

Inventor： Hideyuki SAKAMOTO ,  Teppei HIROTSU ,  Taisuke UETA ,  Hidetatsu YAMAMOTO

IPC: B60W60/00 ,  G06V10/80 ,  G06V10/776 ,  G06V20/56 ,  G06V10/82 ,  G06N3/04 ,  G01S13/931 ,  G01S13/86

Abstract: There are realized a vehicle control device and an electronic control system with high reliability capable of safely shifting control even when an operation abnormality occurs in a sensor around a vehicle or an arithmetic block that processes sensor fusion. The vehicle control device includes a first arithmetic block which performs sensor fusion processing based on pieces of raw data output from a plurality of surrounding environment sensors, a second arithmetic block which performs sensor fusion processing based on pieces of object data generated by processing the pieces of raw data output from the plurality of surrounding environment sensors, and a third arithmetic block which diagnoses an output result of the first arithmetic block by using the output result of the first arithmetic block and an output result of the second arithmetic block.