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    Electronic control unit
    2.
    发明授权
    Electronic control unit 有权

    公开(公告)号：US11523493B2

    公开(公告)日：2022-12-06

    申请号：US17268849

    申请日：2019-06-27

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Miki Hiraoka ,  Ryosuke Ishida ,  Yoshio Kawai

    IPC: H05K1/18 ,  H05K1/02

    Abstract: An electronic control unit includes: a wiring substrate having a first surface on which a conductor wire is formed; a first electronic component that is implemented on the first surface of the wiring substrate, and has a large heat generation amount; a second electronic component that is implemented on the first surface of the wiring substrate, and has a heat generation amount smaller than the first electronic component; and a resin that covers the first electronic component, the second electronic component, and the first surface of the wiring substrate, and a second surface of the wiring substrate that is opposite to the first surface. A distance between an outer surface of the resin immediately below the first electronic component, and the second surface of the wiring substrate is longer than a distance between an outer surface of the resin immediately above the second electronic component, and the first surface of the wiring substrate.

    Electronic control device
    4.
    发明授权
    Electronic control device 有权

    公开(公告)号：US10044494B2

    公开(公告)日：2018-08-07

    申请号：US15531896

    申请日：2015-11-25

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Teppei Hirotsu ,  Ryosuke Ishida

    IPC: H04L7/00 ,  B60R16/023 ,  H04L29/06 ,  H04L12/26

    Abstract: The present invention achieves, using simple circuits, timing synchronization among ECUs of an electronic control device which is configured from a driver ECU, a sensor ECU, and an integrated ECU which are connected over a network. This electronic control device is provided with a driver ECU for driving various loads for vehicular control, a sensor ECU for sampling various sensor signals, and an integrated ECU which is connected to the driver ECU and sensor ECU over a network and calculates command values to the various loads in accordance with various sensor data, the electronic control device being characterized in that the driver ECU has timer D for generating internal timing, the sensor ECU has timer S for generating internal timing, and the integrated ECU has timer M serving as a reference for timer D and timer S.

    Electronic Control Unit
    5.
    发明申请
    Electronic Control Unit 有权
    电子控制单元

    公开(公告)号：US20150039913A1

    公开(公告)日：2015-02-05

    申请号：US14379709

    申请日：2013-02-01

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Yasushi Sugiyama ,  Takuya Mayuzumi ,  Ryosuke Ishida ,  Yasuhiko Okada ,  Kiyoomi Kadoya ,  Kenichi Hoshino

    IPC: G06F1/28 ,  G06F1/30 ,  B60W10/18 ,  G01R21/00

    CPC classification number: G06F1/28 ,  B60W10/18 ,  B60W2600/00 ,  B60W2710/18 ,  G01R19/16538 ,  G01R21/006 ,  G01R31/40 ,  G06F1/30 ,  G06F1/305

    Abstract: Disclosed is an electronic control unit capable of identifying an abnormality in a power supply voltage without narrowing the operating voltage range, and having minimal effects on cost and the circuit mounting surface area. The ECU includes a microcomputer containing an input terminal VCCin and an input terminal Vrin, a power supply IC that supplies a power supply voltage VCC to the input terminal VCCin, and as a reference-voltage-generator circuit a voltage-divider resistor and a voltage-divider resistor configuring a voltage-dividing circuit that outputs a sub-divided voltage Vc is sub-divided from the power supply voltage VCC, a capacitor coupled at one end to the input terminal Vrin and coupled on at the other end to ground, and a voltage isolation element coupled between the voltage-dividing circuit and the input terminal Vrin.

    Abstract translation: 公开了一种电子控制单元，其能够识别电源电压的异常而不使工作电压范围变窄，并且对成本和电路安装表面积的影响最小。 ECU包括微型计算机，其包含输入端子VCCin和输入端子Vrin，向输入端子VCCin提供电源电压VCC的电源IC，以及作为参考电压发生器电路的分压电阻器和电压 将构成分压电路Vc的分压电阻构成为从电源电压VCC分压，一端耦合到输入端子Vrin并在另一端耦合到地， 耦合在分压电路和输入端子Vrin之间的电压隔离元件。

    Load drive device
    6.
    发明授权
    Load drive device 有权

    公开(公告)号：US10340833B2

    公开(公告)日：2019-07-02

    申请号：US15580957

    申请日：2016-04-12

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Ming Liu ,  Taizo Yamawaki ,  Takuya Mayuzumi ,  Ryosuke Ishida ,  Yasushi Sugiyama ,  Goichi Ono

    IPC: H02P27/06 ,  H02P29/024 ,  H02P3/22

    Abstract: To achieve, in a load drive device including an H-bridge circuit, miniaturization of a capacitor or/and the constituent elements of the H-bridge circuit (e.g., reduction in volume) with circuit elements, for example, switching elements included in the H-bridge circuit, being inhibited from breaking down or destroying even in a case where a load is overloaded. The invention is disclosed in which, as a solution to the achievement, first and second modes are provided as a switching mode for the switching elements 11, 12, 13, and 14 and switching is appropriately performed between the first and second modes.

    Step-up/down power supply and power supply circuit
    7.
    发明授权
    Step-up/down power supply and power supply circuit 有权

    公开(公告)号：US10340799B2

    公开(公告)日：2019-07-02

    申请号：US15772128

    申请日：2016-09-28

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： Ming Liu ,  Shinya Kajiyama ,  Taizo Yamawaki ,  Ryosuke Ishida ,  Hirofumi Kurimoto ,  Yasushi Sugiyama

    IPC: H02M3/158 ,  G05F1/40 ,  G06F1/26 ,  H02M1/08 ,  H02M3/07 ,  H02M1/00

    Abstract: A step-up/down power supply, in which a circuit area is small, includes a step-down unit that generates an output voltage lower than an input voltage by turning on or off a step-down switch in which the input voltage of the step-up/down power supply is applied, and a step-up unit that generates an output voltage higher than the input voltage by turning on or off a step-up switch in which a ground is applied. A step-down gate voltage control circuit controls a gate voltage of the step-down switch and includes a gate voltage generating circuit that generates a first voltage and a second voltage for turning on the step-down switch. A gate voltage switching circuit switches between the first voltage and the second voltage, and the gate voltage generating circuit includes a first voltage source that generates the first voltage and a second voltage source that generates the second voltage.

    Electronic control device for vehicular automatic transmission
    8.
    发明授权
    Electronic control device for vehicular automatic transmission 有权

    公开(公告)号：US10221945B2

    公开(公告)日：2019-03-05

    申请号：US15545938

    申请日：2016-01-12

    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

    Inventor： Kenichi Hoshino ,  Ryosuke Ishida ,  Hideki Sekiguchi

    IPC: F16H61/12 ,  F16H61/04

    Abstract: The present invention addresses the problem of obtaining an electronic control device for a vehicular automatic transmission that suppresses sudden acceleration, sudden deceleration, and gear shift shock that occur when the transmission moves into a fail-safe mode due to the electronic control device stopping during a main CPU abnormality. An electronic control device 100 for a vehicular automatic transmission has: a main CPU 3 that performs gear shift control for the vehicular automatic transmission; and a sub-CPU 4 that detects abnormalities in the main CPU 3. When the sub-CPU 4 detects an abnormality in the main CPU 3 while the vehicle is traveling, the sub-CPU 4 stops the gear shift control executed by the main CPU 3.

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