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    IN-VEHICLE POWER SUPPLY SYSTEM WITH MULTIPLE VOLTAGE-REDUCING DEVICES
    3.
    发明申请
    IN-VEHICLE POWER SUPPLY SYSTEM WITH MULTIPLE VOLTAGE-REDUCING DEVICES 有权
    具有多个电压降低装置的车内电源系统

    公开(公告)号：US20130234632A1

    公开(公告)日：2013-09-12

    申请号：US13796478

    申请日：2013-03-12

    Applicant: DENSO CORPORATION

    Inventor： Takahiro YAMANAKA ,  Toshihisa YAMAMOTO

    IPC: B60R16/03

    CPC classification number: B60R16/03

    Abstract: An in-vehicle power supply system includes a DC power source, a steering power converter, a steering drive control unit, a plurality of voltage-reducing devices, and a voltage-reducing control unit. The steering power converter converts electric power supplied from the DC power source, and provides the electric power converted to a steering assist motor. The steering drive control unit is supplied with electric power from the DC power source, and controls the steering power converter. The voltage-reducing devices are coupled in parallel to each other between the DC power source and the steering power converter. Each of the voltage-reducing devices reduces a power source voltage of the DC power source and generates a reduced voltage when being operated. The voltage-reducing control unit determines operation state or non-operation state of each of the voltage-reducing devices such that at least one of the voltage-reducing devices is in operation at a time.

    Abstract translation: 车载电源系统包括直流电源，转向功率转换器，转向驱动控制单元，多个降压装置和降压控制单元。 转向功率转换器转换从直流电源提供的电力，并且提供转换为转向辅助电动机的电力。 转向驱动控制单元由直流电源供电，并控制转向功率转换器。 降压装置在直流电源和转向功率转换器之间彼此并联耦合。 每个降压装置降低直流电源的电源电压，并且在操作时产生降低的电压。 降压控制单元确定每个降压装置的操作状态或非操作状态，使得至少一个降压装置一次运行。

    CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS HAVING THE CONTROL UNIT
    4.
    发明申请
    CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS HAVING THE CONTROL UNIT 有权
    控制单元和具有控制单元的电动转向装置

    公开(公告)号：US20150251690A1

    公开(公告)日：2015-09-10

    申请号：US14632541

    申请日：2015-02-26

    Applicant: DENSO CORPORATION

    Inventor： Toshihisa YAMAMOTO

    IPC: B62D5/04 ,  H02P6/24 ,  H02P6/00

    CPC classification number: B62D5/046 ,  B62D5/0484 ,  B62D5/0487 ,  H02P6/24 ,  H02P29/0241

    Abstract: In a control unit, a control part is operated by electric power from an ignition power supply, and controls operations of relays and inverters. A first end of a boosting part is electrically connected between at least one relay and a corresponding inverter. A second end of the boosting part is electrically connected to the control part. The boosting part boosts a voltage at the first end, and outputs the voltage boosted from the second end. An abnormality detecting portion detects an abnormality of the boosting part. When the abnormality detecting portion detects an abnormality of the boosting part, the control part controls the at least one relay to which the first end of the boosting part is connected to shut off a flow of electric power from a main power supply to the boosting part and to the inverter corresponding to the at least one relay.

    Abstract translation: 在控制单元中，通过来自点火电源的电力对控制部进行动作，控制继电器和逆变器的动作。 升压部的第一端电连接在至少一个继电器和相应的逆变器之间。 升压部的第二端电连接到控制部。 升压部分提高第一端的电压，并输出从第二端提升的电压。 异常检测部检测升压部的异常。 当异常检测部分检测到升压部分的异常时，控制部分控制升压部分的第一端连接到的至少一个继电器，以切断从主电源到升压部分的电力流 以及对应于所述至少一个继电器的逆变器。

    ELECTRONIC CONTROL UNIT AND ROTATING ELECTRIC MACHINE
    5.
    发明申请
    ELECTRONIC CONTROL UNIT AND ROTATING ELECTRIC MACHINE 有权
    电子控制单元和旋转电机

    公开(公告)号：US20140225482A1

    公开(公告)日：2014-08-14

    申请号：US14174936

    申请日：2014-02-07

    Applicant: DENSO CORPORATION

    Inventor： Yoshimichi HARA ,  Toshihisa YAMAMOTO ,  Takahiro YAMANAKA

    IPC: H05K7/20 ,  H02K5/22

    CPC classification number: H05K7/20509 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/13091 ,  H01L2924/181 ,  H02K5/22 ,  H02K9/22 ,  H02K11/33 ,  H05K7/20854 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

    Abstract: An electronic control unit is equipped with a semiconductor module having a semiconductor chip electrically connected to the first circuit pattern and the second circuit pattern. A resin body is wrapped around the semiconductor chip. A first metal plate has a side connected to the semiconductor chip and an other side connected to the first circuit pattern. A radiator projects toward and is connected to the first circuit pattern by a first heat conductor. As a result, heat generated by the semiconductor chip is transmitted to the radiator through the first metal plate, the first circuit pattern, and the first heat conductor during operation of the semiconductor module.

    Abstract translation: 电子控制单元配备有具有电连接到第一电路图案和第二电路图案的半导体芯片的半导体模块。 树脂体被包裹在半导体芯片周围。 第一金属板的一侧连接到半导体芯片，另一侧连接到第一电路图案。 散热器通过第一导热体向第一电路图形投影并连接到第一电路图案。 结果，在半导体模块的工作过程中，由半导体芯片产生的热量通过第一金属板，第一电路图案和第一导热体传递到散热器。

    MOTOR DRIVE SYSTEM
    6.
    发明申请
    MOTOR DRIVE SYSTEM 审中-公开
    电机驱动系统

    公开(公告)号：US20130181639A1

    公开(公告)日：2013-07-18

    申请号：US13709326

    申请日：2012-12-10

    Applicant: DENSO CORPORATION

    Inventor： Takahiro YAMANAKA ,  Toshihisa YAMAMOTO

    IPC: H02P3/14

    CPC classification number: H02P3/14 ,  B62D5/046 ,  B62D5/0481 ,  H02P6/24

    Abstract: A first drive circuit of a motor drive apparatus drives a motor by converting electric power of a battery. A relay is connected in high potential line between the battery and an inverter. A diode is connected in parallel to the relay. The diode conducts a current in a regeneration direction, which is from a high potential side of the inverter to a high potential electrode of the battery, under a state that the relay is in the off-state. Thus, an inductive voltage, which is generated by the motor when a reverse input torque is applied from a load side, is led to the battery through the diode, and switching elements forming the inverter are protected from the inductive voltage.

    Abstract translation: 电机驱动装置的第一驱动电路通过转换电池的电力来驱动电动机。 继电器连接在电池和逆变器之间的高电位线路中。 二极管与继电器并联连接。 在继电器处于截止状态的状态下，二极管在从逆变器的高电位侧向电池的高电位电极的再生方向导通电流。 因此，当从负载侧施加反向输入转矩时由电动机产生的感应电压通过二极管被引导到电池，并且形成逆变器的开关元件被保护免受感应电压的影响。

    ELECTRONIC ELEMENT AND ELECTRONIC DEVICE
    7.
    发明申请
    ELECTRONIC ELEMENT AND ELECTRONIC DEVICE 有权
    电子元件和电子设备

    公开(公告)号：US20150029673A1

    公开(公告)日：2015-01-29

    申请号：US14336346

    申请日：2014-07-21

    Applicant: DENSO CORPORATION

    Inventor： Yuta KADOIKE ,  Hideki KABUNE ,  Toshihisa YAMAMOTO

    IPC: H05K1/02 ,  H05K1/18

    CPC classification number: H05K1/0203 ,  B62D5/0406 ,  H01L2224/40245 ,  H01L2924/181 ,  H01L2924/1815 ,  H05K1/181 ,  H05K3/284 ,  H05K7/20454 ,  H01L2924/00012

    Abstract: An electronic element surface-mounted on a substrate has a leg part that protrudes from a back surface of the electronic element toward a heat sink along a peripheral portion of a back electrode. As such, if the substrate warps, the protruding leg part abuts a heat reception surface of the heat sink, thereby preserving an insulation gap between the back electrode and the heat sink. As a result, short-circuiting is prevented.

    Abstract translation: 表面安装在基板上的电子元件具有从电子元件的背面朝着背电极的周边部分朝向散热器突出的支脚部。 因此，如果基板翘曲，则突出的腿部邻接散热片的热接收面，从而保持背面电极和散热器之间的绝缘间隙。 结果，防止短路。

    ROTARY ELECTRIC MACHINE CONTROL APPARATUS AND ELECTRIC POWER STEERING SYSTEM USING THE SAME
    9.
    发明申请
    ROTARY ELECTRIC MACHINE CONTROL APPARATUS AND ELECTRIC POWER STEERING SYSTEM USING THE SAME 有权
    旋转电机控制装置和使用该电机的电动转向系统

    公开(公告)号：US20140009094A1

    公开(公告)日：2014-01-09

    申请号：US13894044

    申请日：2013-05-14

    Applicant: Denso Corporation

    Inventor： Toshihisa YAMAMOTO

    IPC: H02P6/14 ,  B62D5/04

    CPC classification number: H02P6/14 ,  B62D5/0403 ,  B62D5/0406 ,  B62D5/046

    Abstract: Synthesized signal generation circuits are provided to correspond to a U-coil, a V-coil, a W-coil, respectively, and generate synthesized signals by synthesizing a first command signal and a second command signal generated by a command signal generation circuit. CPU output terminals output the synthesized signals. Signal wires are provided with one ends being connected electrically to the CPU output terminals, respectively, and other ends being connected electrically to IC input terminals of a driver IC, respectively. Gate signal generation circuits separate the synthesized signals applied to the IC input terminals to generate first gate signals as gate signals for high-side FETs and second gate signals as gate signals for low-side FETs.

    Abstract translation: 提供合成信号生成电路以对应于U线圈，V线圈，W线圈，并通过合成由命令信号产生电路产生的第一命令信号和第二命令信号来产生合成信号。 CPU输出端输出合成信号。 信号线的一端分别与CPU输出端子电连接，另一端分别与驱动器IC的IC输入端子电连接。 门信号发生电路分离施加到IC输入端的合成信号，以产生作为高侧FET和第二栅极信号的栅极信号的第一栅极信号，作为低端FET的栅极信号。

    MOTOR DRIVE APPARATUS
    10.
    发明申请
    MOTOR DRIVE APPARATUS 审中-公开
    电机驱动装置

    公开(公告)号：US20130277138A1

    公开(公告)日：2013-10-24

    申请号：US13860046

    申请日：2013-04-10

    Applicant: DENSO CORPORATION

    Inventor： Kanta ARAI ,  Toshihisa YAMAMOTO

    IPC: H02H7/08 ,  B62D5/04

    CPC classification number: H02H7/0833 ,  B62D5/04 ,  B62D5/046 ,  B62D5/0481

    Abstract: A motor drive apparatus includes a back EMF detection element and a protection control circuit. When a voltage detected by the back EMF detection element exceeds a threshold voltage of a Zener diode, a voltage signal is applied to a sensing gate through a detection signal line to sequentially turn on switching element of the low-side arm. A current caused by the back EMF applied to a drive circuit flows to the ground through the switching element of the low-side arm in an on-state. Thus a braking torque is applied to a motor, which is driven to rotate by an external force, and hence the back EMF is reduced. Switching elements in the drive circuit are thus protected from the excessive voltage.

    Abstract translation: 电动机驱动装置包括反电动势检测元件和保护控制电路。 当由反电动势检测元件检测到的电压超过齐纳二极管的阈值电压时，通过检测信号线将电压信号施加到感测门，以依次打开低侧臂的开关元件。 由施加到驱动电路的反电动势引起的电流在接通状态下通过低侧臂的开关元件流到地面。 因此，制动转矩被施加到由外力驱动旋转的电动机，因此减小了反电动势。 因此，驱动电路中的开关元件被保护免受过电压的影响。

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