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    Electronic Control Device
    1.
    发明申请
    Electronic Control Device 有权

    公开(公告)号：US20210318940A1

    公开(公告)日：2021-10-14

    申请号：US17272098

    申请日：2019-08-07

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Kenichi SHIMBO ,  Tadanobu TOBA ,  Hideyuki SAKAMOTO

    IPC: G06F11/273 ,  G06F11/22

    Abstract: An electronic control device includes: a diagnostic circuit unit configured to be reconfigurable so as to be used to diagnose each of a plurality of processing circuits that processes an input signal; an input data storage unit configured to temporarily store the input signal; an output data storage unit configured to temporarily store an output signal of the plurality of processing circuits; a reconfiguration control unit configured to sequentially write, to the diagnostic circuit unit as circuit configuration information, circuit information the same as that of the plurality of processing circuits; a diagnostic control unit configured to cause the diagnostic circuit unit to perform calculation using the input signal stored in the input data storage unit when the circuit configuration information is written to the diagnostic circuit unit; and a comparator configured to diagnose each of the plurality of processing circuits by comparing output of the diagnostic circuit unit and the output signal stored in the output data storage unit.

    Electronic Control Device and Error Detection Method of Configuration Memory
    3.
    发明申请
    Electronic Control Device and Error Detection Method of Configuration Memory 审中-公开

    公开(公告)号：US20200379831A1

    公开(公告)日：2020-12-03

    申请号：US16970855

    申请日：2018-11-20

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Kenichi SHIMBO ,  Tadanobu TOBA ,  Taisuke UETA ,  Hideyuki SAKAMOTO

    IPC: G06F11/07 ,  G06F11/10 ,  G06F11/14 ,  H03K19/1776

    Abstract: An electronic control device includes a rewritable configuration memory composed of a plurality of frames in which logic circuit information is stored, a reconfiguration control unit configured to rewrite the logic circuit information of the frames, a logic unit configured to form a logic circuit based on the logic circuit information stored in the frames, and a configuration memory diagnosis unit configured to read the logical circuit information stored in the frames of the configuration memory and to perform error detection which is detection of an error in the stored logic circuit information, in which when the frames are rewritten by the reconfiguration control unit, the configuration memory diagnosis unit performs the error detection of ones of the frames that are rewritten prior to ones of the frames that are not rewritten.

    ELECTRONIC CONTROL DEVICE AND METHOD OF CONTROLLING LOGIC CIRCUIT
    4.
    发明申请
    ELECTRONIC CONTROL DEVICE AND METHOD OF CONTROLLING LOGIC CIRCUIT 审中-公开

    公开(公告)号：US20200050580A1

    公开(公告)日：2020-02-13

    申请号：US16606830

    申请日：2018-03-22

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Taisuke UETA ,  Satoshi TSUTSUMI ,  Hideki ENDO ,  Hideyuki SAKAMOTO

    IPC: G06F15/78 ,  G06F9/30

    Abstract: An electronic control device includes: a partially reconfigurable logic circuit in which a calculation unit which is reconfigured and executes calculation and a storage unit which stores calculation target date to be calculated by the calculation unit is configured; and a processing control unit which transmits circuit data for reconfiguring the calculation unit and the calculation target date to the logic circuit. When the processing control unit obtains next calculation target date which is the calculation target date relating to a next calculation unit which is the calculation unit after completion of reconfiguration, transmission of the next calculation target date to the storage unit is started regardless of whether the reconfiguration of the next calculation unit is completed, and upon completion of the reconfiguration, the next calculation unit performs calculation using the next calculation target date.

    VEHICLE CONTROL APPARATUS
    6.
    发明申请
    VEHICLE CONTROL APPARATUS 审中-公开

    公开(公告)号：US20190179310A1

    公开(公告)日：2019-06-13

    申请号：US16324115

    申请日：2017-07-04

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Hideyuki SAKAMOTO ,  Akio IKEYA ,  Masayuki KAWABATA ,  Hirotaka AMO

    IPC: G05D1/00 ,  B60W50/023 ,  B60R16/023

    Abstract: Provided is a vehicle control apparatus capable of continuing a control function against abnormality in operation of an arithmetic processor and abnormality in the power supply voltage and capable of improving reliability. In a case where there is no abnormality in a main CPU 11b and a main CPU 12b of an autonomous travel control unit 11 and an auxiliary control unit 12, the autonomous travel control unit 11 and the auxiliary control unit 12 calculate control instruction values for automatic driving control, validate a CAN communication circuit 11c of the autonomous travel control units 11 while invalidating a CAN communication circuit 12c of the auxiliary control unit 12. In a case where abnormality occurs in the autonomous travel control unit 11 and there is no abnormality in the auxiliary control unit 12, the CAN communication circuit 11c of the autonomous travel control unit 11 is invalidated and the CAN communication circuit 12c of the auxiliary control unit 12 is validated. In a case where the auxiliary control unit 12 has no abnormality when the autonomous travel control unit 11 has abnormality during automatic driving control of the autonomous travel control unit 11, it is possible to continue seamless automatic driving control with substantially no time lag.

    Electronic Control Device
    7.
    发明申请
    Electronic Control Device 有权

    公开(公告)号：US20210362706A1

    公开(公告)日：2021-11-25

    申请号：US17269768

    申请日：2019-08-08

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Tatsuya HORIGUCHI ,  Teppei HIROTSU ,  Hideyuki SAKAMOTO

    IPC: B60W30/095 ,  B60W40/04 ,  B60W50/00 ,  B60W60/00 ,  B60W50/04 ,  B60W50/023 ,  B60W50/14

    Abstract: The reliability of path planning calculation can be evaluated with low load without using multiplexing of calculation or an additional sensor. The electronic control device includes an integration unit that acquires information around a vehicle as sensor information from a plurality of sensors for each processing cycle, and integrates the acquired sensor information to create vehicle peripheral information for each processing cycle, a path planning unit that calculates a planned path on which the vehicle will travel in the future using the vehicle peripheral information for each processing cycle, and a path evaluation unit that evaluates reliability of the path planning unit, in which the path evaluation unit that uses, in the planned path calculated by the path planning unit in a first processing cycle, a position of the vehicle in a second processing cycle, which is a processing cycle after the first processing cycle, and the vehicle peripheral information created by the integration unit in the second processing cycle to evaluate the reliability of the path planning unit in the first processing cycle.

    Electronic Control Device
    8.
    发明申请
    Electronic Control Device 有权

    公开(公告)号：US20210321539A1

    公开(公告)日：2021-10-14

    申请号：US17267578

    申请日：2019-06-27

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Minami TERANISHI ,  Shinya KAWAKITA ,  Hideyuki SAKAMOTO

    IPC: H05K7/20 ,  H01L23/367

    Abstract: Provided is an electronic control device including a first electronic component having a first heat generation amount, a second electronic component having a second heat generation amount smaller than the first heat generation amount, a substrate on which the first and second electronic components are mounted, and a housing that accommodates the first electronic component, the second electronic component and the substrate, and includes a case for heat radiation having a heat radiation structure through which heat of the first and second electronic components is radiated. The heat radiation structure includes a heat radiation block that is heat-bonded to the first electronic component, and a plurality of plate-shaped heat radiation fins extending outward from an outer peripheral portion of the heat radiation block.

    POWER CONVERSION DEVICE
    10.
    发明申请
    POWER CONVERSION DEVICE 有权

    公开(公告)号：US20170194872A1

    公开(公告)日：2017-07-06

    申请号：US15321238

    申请日：2015-06-17

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Keisuke FUKUMASU ,  Masayoshi TAKAHASHI ,  Hideyuki SAKAMOTO

    IPC: H02M7/00 ,  H05K5/00 ,  H05K5/04 ,  H02M7/537

    CPC classification number: H02M7/003 ,  H02M7/537 ,  H05K5/0017 ,  H05K5/0026 ,  H05K5/04

    Abstract: A power conversion device possesses a capacitor module, a power module, a circuit board on which a control circuit is mounted and which has a ground layer formed in a control circuit mounting region, a noise shielding plate, and a metal housing. The circuit board is above the capacitor module, and the noise shielding plate faces the control circuit mounting region between the circuit board and the capacitor module, in which the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing. A first end part on the power module side of the noise shielding plate is on the power module side more than a second end part on the power module side of the ground layer, and the connection part which is the closest to the first end part is provided on the power module side more than the second end part.

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