中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.016 seconds)

    ELECTRIC POWER STEERING APPARATUS
    1.
    发明申请
    ELECTRIC POWER STEERING APPARATUS 审中-公开

    公开(公告)号：US20190210637A1

    公开(公告)日：2019-07-11

    申请号：US16243488

    申请日：2019-01-09

    Applicant: DENSO CORPORATION

    Inventor： Hiroyasu OTAKE ,  Toshihiro FUJITA ,  Takashi SUZUKI

    IPC: B62D5/04 ,  B62D15/02

    CPC classification number: B62D5/049 ,  B62D15/0235

    Abstract: A microcomputer includes an abnormality monitor unit, a rotation angle calculation unit and a current supply control unit. The abnormality monitor unit monitors an abnormality of the rotation angle sensor. The rotation angle calculation unit calculates an electrical angle based on angle information acquired from the rotation angle sensor and an abnormality state of the rotation angle sensor. The current supply control unit controls current supply to the winding sets based on the electrical angle. When an abnormality is detected in one of the sensor units, the rotation angle calculation unit calculates the electrical angle based on a hold value which is the electrical angle before the detection of abnormality during a period from the detection of abnormality to a final determination of the abnormality. When the abnormality of the sensor unit is finalized, the electrical angle is calculated based on the angle information of the other sensor unit which is normal.

    ROTATION DETECTION DEVICE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME
    2.
    发明申请
    ROTATION DETECTION DEVICE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME 审中-公开

    公开(公告)号：US20200039579A1

    公开(公告)日：2020-02-06

    申请号：US16530091

    申请日：2019-08-02

    Applicant: DENSO CORPORATION

    Inventor： Toshihiro FUJITA ,  Nobuyori NAKAJIMA ,  Masaya TAKI ,  Takahiro SUZUKI

    IPC: B62D5/04 ,  B62D15/02 ,  G01D5/14 ,  G01D5/16 ,  G01D18/00

    Abstract: An ECU includes plural sensor units and plural control units. The sensor units include magnetic field detection elements for detecting a rotation of a motor, and output mechanical angles related to the rotation angle in one rotation and count values related to the number of rotations of the motor, respectively. One rotation of the motor is divided into indefinite regions, in which detection deviation of the count values may occur, and definite regions, in which no detection deviation occurs. The definite region of the count value is set to deviate from the definite region of the other count value. Absolute angle calculation units calculate the absolute angles using the count values of the definite regions.

    SIGNAL CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING SAME
    3.
    发明申请
    SIGNAL CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING SAME 审中-公开

    公开(公告)号：US20190291775A1

    公开(公告)日：2019-09-26

    申请号：US16298224

    申请日：2019-03-11

    Applicant: DENSO CORPORATION

    Inventor： Masaya TAKI ,  Toshihiro FUJITA ,  Shuji KURAMITSU ,  Koichi NAKAMURA ,  Toshimitsu SAKAI

    IPC: B62D5/04

    Abstract: An ECU, which is a signal control apparatus, has a plurality of control units, which control one same motor. Steering angle calculation units acquire sensor signals from the angle sensors provided corresponding to the steering angle calculation units, respectively, and calculate the steering angles in correspondence to the sensor signals. The angle FB units perform the angle FB control based on the angle differences, which are between the target angle and the steering angle and between the target angle and the steering angle, respectively. In the angular FB unit of at least one of the control units, the angular feedback control is performed using the angle difference, which is subjected to the correction processing to reduce the error between the detection angle of the own system and the detection angle of the other system calculated by the steering angle calculation unit of the other control unit.

    STEERING ANGLE DETECTION DEVICE
    6.
    发明申请
    STEERING ANGLE DETECTION DEVICE 审中-公开

    公开(公告)号：US20200047806A1

    公开(公告)日：2020-02-13

    申请号：US16654314

    申请日：2019-10-16

    Applicant: DENSO CORPORATION

    Inventor： Takaharu KOZAWA ,  Shuji KURAMITSU ,  Koichi NAKAMURA ,  Yuki WATANABE ,  Atsuko OKA ,  Toshihiro FUJITA ,  Shuhei MIYACHI ,  Masaya TAKI ,  Toshimitsu SAKAI ,  Katsuhiko HAYASHI

    IPC: B62D15/02 ,  B62D5/04 ,  B60R16/027

    Abstract: A steering angle detection device is provided with a plurality of rotation angle sensors and a plurality of control units. The rotation angle sensors are capable of at least continuously calculating a rotation speed while an ignition switch of a vehicle is turned off, and are provided so as to correspond to steering angle calculation units which calculate steering angle based on the rotation speed and a rotation angle acquired from the rotation angle sensors and midpoint information related to the neutral position of a steering member. Power supplies are provided on a per-system basis. The rotation angle sensors or the control units are capable of holding the midpoint information while the ignition switch is turned off. If a power supply abnormality resulting in power supply failure occurs in some of the systems, the control unit of the abnormal system acquires the midpoint information and the rotation speed from the control unit of a normal system when the ignition switch is turned on.

    ROTATIONAL ANGLE DETECTING DEVICE AND ELECTRIC POWER STEERING DEVICE USING THE SAME
    7.
    发明申请
    ROTATIONAL ANGLE DETECTING DEVICE AND ELECTRIC POWER STEERING DEVICE USING THE SAME 审中-公开
    旋转角度检测装置和使用该方法的电动转向装置

    公开(公告)号：US20150239496A1

    公开(公告)日：2015-08-27

    申请号：US14631260

    申请日：2015-02-25

    Applicant: DENSO CORPORATION

    Inventor： Takaharu KOZAWA ,  Toshihiro FUJITA

    IPC: B62D5/04 ,  G01B7/30

    CPC classification number: B62D5/0484 ,  B62D5/046 ,  B62D5/0463 ,  B62D5/0481 ,  B62D15/021 ,  B62D15/0235 ,  G01B7/30

    Abstract: A rotational angle detecting device has a detecting element that detects a rotating magnetic field of a magnet that is variable according to a rotation of a motor. A rotational angle calculator calculates a rotational angle and a rotation number. A power supply failure determining circuit has a volatile memory that stores power supply failure information indicating that power supply failure occurs in which electric power is not supplied to the rotational angle detecting device from a battery. A communication portion outputs the rotational information and output information corresponding to the power supply failure information to the controller. The communication portion receives a notifying signal after the controller receives the output information indicating that the power supply failure occurs. The volatile memory stores the power supply failure information indicating that the power supply failure occurs after the power supply failure occurs until the communication portion receives the notifying signal.

    Abstract translation: 旋转角检测装置具有检测元件，该检测元件检测根据电动机的旋转而变化的磁体的旋转磁场。 旋转角度计算器计算旋转角度和旋转角度。 电源故障判定电路具有易失性存储器，其存储表示从电池未向旋转角度检测装置供给电力的电源故障的电源故障信息。 通信部将与电源故障信息对应的旋转信息和输出信息输出到控制器。 在控制器接收到指示发生电源故障的输出信息之后，通信部分接收通知信号。 易失性存储器存储指示在电源故障发生之后发生电源故障的电源故障信息，直到通信部分接收到通知信号。

    SEMICONDUCTOR DEVICE TO BE ATTACHED TO HEAT RADIATION MEMBER
    8.
    发明申请
    SEMICONDUCTOR DEVICE TO BE ATTACHED TO HEAT RADIATION MEMBER 有权
    要连接到热辐射部件的半导体器件

    公开(公告)号：US20150035136A1

    公开(公告)日：2015-02-05

    申请号：US14339653

    申请日：2014-07-24

    Applicant: DENSO CORPORATION

    Inventor： Toshihiro FUJITA

    IPC: H01L23/367 ,  H01L23/40

    CPC classification number: H01L23/367 ,  H01L23/4006 ,  H01L23/4334 ,  H01L24/34 ,  H01L24/37 ,  H01L24/40 ,  H01L25/072 ,  H01L2023/4031 ,  H01L2023/405 ,  H01L2224/37147 ,  H01L2224/40137 ,  H01L2224/40139 ,  H01L2224/40245 ,  H01L2924/00014 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/00 ,  H01L2224/84

    Abstract: A semiconductor device includes a semiconductor module and a pressing member pressing the semiconductor module to a heat radiation member. The semiconductor module includes heat generation elements generating heat by energization, three or more conductive members each of which mounted with at least one of the heat generation elements, and a molding part integrally molding the heat generation elements and the conductive members. The semiconductor module has a heat radiation possible region in which a forcing pressure by the pressing member is equal to or greater than a predetermined pressure. The conductive member mounted with the heat generation element disposed outside the heat radiation possible region has such a shape that at least a part of the conductive member is included in the heat radiation possible region.

    Abstract translation: 半导体器件包括半导体模块和将半导体模块按压到散热构件的按压构件。 半导体模块包括通过通电而产生热量的发热元件，三个或更多个导电构件，每个导电构件安装有至少一个发热元件，以及模制部件一体地模制发热元件和导电构件。 半导体模块具有其中加压构件的强制压力等于或大于预定压力的散热可能区域。 安装有设置在散热可能区域外部的发热元件的导电构件具有这样的形状，使得至少一部分导电构件被包括在可辐射可能区域中。

    SEMICONDUCTOR PACKAGE AND ELECTRONIC DEVICE HAVING THE SAME
    9.
    发明公开
    SEMICONDUCTOR PACKAGE AND ELECTRONIC DEVICE HAVING THE SAME 审中-公开

    公开(公告)号：US20230326817A1

    公开(公告)日：2023-10-12

    申请号：US18334625

    申请日：2023-06-14

    Applicant: DENSO CORPORATION

    Inventor： Noboru NAGASE ,  Ippei KAWAMOTO ,  Toshihiro FUJITA ,  Atsushi SAITO ,  Hideki KABUNE

    IPC: H01L23/08 ,  H01L23/14 ,  H01L23/29 ,  H01L23/495

    CPC classification number: H01L23/08 ,  H01L23/14 ,  H01L23/293 ,  H01L23/49568

    Abstract: A semiconductor package includes semiconductor elements, a lead frame, a crosslinked member, and sealing resin. Each of the semiconductor elements has a first surface and a second surface located on a side opposite to the first surface. The lead frame has a mounting portion and a connected portion. At least one of the semiconductor elements mounts on the mounting portion. The connected portion is separated from the mounting portion. The crosslinked member is connected to the second surface of at least one of the semiconductor elements and the connected portion to electrically connect at least one of the semiconductor elements and the connected portion. The sealing resin is electrically insulated and covers a portion of the lead frame, the semiconductor elements and the crosslinked member. At least one of the semiconductor elements is different from another one of the semiconductor elements in element size or power consumption.

    DETECTION UNIT
    10.
    发明申请
    DETECTION UNIT 审中-公开

    公开(公告)号：US20200307683A1

    公开(公告)日：2020-10-01

    申请号：US16823760

    申请日：2020-03-19

    Applicant: DENSO CORPORATION

    Inventor： Toshihiro FUJITA

    IPC: B62D5/04 ,  G01M17/06

    Abstract: A detection unit has a detection element for detecting a change of magnetic field according to a rotation of a magnet, and an angle calculator for calculating an angle signal according to a detected physical quantity detected by the detection element. Further, a storage stores a plurality of correction values for correcting detection error of the angle signal, and another storage stores a plurality of correction values for correcting detection error of the angle signal. An abnormality determiner determines abnormality of the correction values, an another abnormality determiner determines abnormality of the correction values. A control calculator performs a control calculation by using the angle signals corrected by using the correction value having been determined as normal.

Patent Agency Ranking