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.

公开(公告)号：US20200309566A1

公开(公告)日：2020-10-01

申请号：US16823771

申请日：2020-03-19

Applicant: DENSO CORPORATION

Inventor： Toshihiro FUJITA ,  Nao UEMATSU ,  Katsuhiko HAYASHI

IPC: G01D5/14 ,  G01L5/00

Abstract: A control unit includes a detection device that includes: a multi-turn detection unit capable of continuing detection of a rotation position of multiple rotations of a steering shaft driven by a motor without power supply from outside; a position detector detecting the rotation position in one rotation of the rotor; a count calculator calculating multiple rotation position information related to the rotation position of multiple rotations based on a detection value of the multi-turn detection unit; and an angle calculator calculating a motor rotation angle related to the rotation position in one rotation based on a detection value of the position detector. The multi-turn detection unit is disposed at a position different from the motor, thereby detection of the rotation position of multiple rotations is continuable even when a supply of electric power from outside is interrupted.

公开(公告)号：US20200047805A1

公开(公告)日：2020-02-13

申请号：US16654307

申请日：2019-10-16

Applicant: DENSO CORPORATION

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

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

Abstract: A steering angle detection device includes plural control units and plural steering angle sensors. Each control unit is configured to transmit steering angle information related to a steering angle of a vehicle to an external device and transmit and receive information mutually therebetween. Each steering angle sensor is provided in correspondence to each control unit and configured to output a sensor signal corresponding to a detection value of a change in the steering angle to the corresponding control unit. One of the control units transmits, as a transmission control unit, the steering angle information to the external device at one transmission timing.

公开(公告)号：US20150189794A1

公开(公告)日：2015-07-02

申请号：US14582877

申请日：2014-12-24

Applicant: DENSO CORPORATION

Inventor： Tsuyoshi TASHIMA ,  Jyunichi OOGOSHI ,  Takayuki UCHIDA ,  Katsuhiko HAYASHI ,  Shinsuke OOTA

IPC: H05K7/20 ,  B62D5/04

CPC classification number: B62D5/0406 ,  H05K1/0203 ,  H05K1/181 ,  H05K7/1432 ,  H05K7/20854 ,  H05K2201/09972

Abstract: In an electronic control unit, high-heat-generating devices are mounted on a first surface or a second surface of a board, a heat-dissipating member is located facing the first surface of the board, and a heat-conducting member is located between the board and the heat-dissipating member. The heat-conducting member is in contact with the high-heat-generating devices to transfer heat of the high-heat-generating devices to the heat-dissipating member. A ratio of the number of the high-heat-generating devices mounted on the board to the number of the high-heat-generating devices arranged inside a first limited region of the first surface or a second limited region of the second surface is greater than a predetermined ratio. The second limited region is located at a position corresponding to the first limited region.

Abstract translation: 在电子控制单元中，高温发生装置安装在板的第一表面或第二表面上，散热构件面向板的第一表面定位，并且导热构件位于 板和散热构件。 导热构件与高发热装置接触，以将高发热装置的热传递到散热构件。 安装在板上的高发热装置的数量与布置在第一表面的第一有限区域内的高发热装置的数量或第二表面的第二限制区域的数量的比率大于 预定比例。 第二有限区域位于与第一有限区域对应的位置。

公开(公告)号：US20190152524A1

公开(公告)日：2019-05-23

申请号：US16091247

申请日：2017-04-06

Applicant: DENSO CORPORATION

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

IPC: B62D15/02 ,  B62D5/04 ,  G01D5/14

Abstract: In a rotation detecting apparatus, each of first and second sensor elements measures rotation of a detection target. A circuit module includes first and second rotational angle calculators each calculating, based on a corresponding one of a first measurement value of the first sensor element and a second measurement value of the second sensor element, a rotational angle of the detection target. The circuit module includes first and second rotation number calculators each calculating, based on the corresponding one of the first measurement value and the second measurement value, a rotation number of the detection target. The circuit module includes first and second communicators each outputting, to a controller, a rotational angle signal based on the rotational angle and a rotation number signal based on the rotation number. A package packages the first and second sensor elements, and is mounted to a circuit board separately from the controller.