公开(公告)号：US20250003453A1

公开(公告)日：2025-01-02

申请号：US18828967

申请日：2024-09-09

Applicant: DENSO CORPORATION

Inventor： Yoshihiro KIDA ,  Takanobu KAWANO ,  Yusuke KIMURA ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Tetsuya OHMI ,  Yasuhiro KITAURA ,  Atsushi KOBAYASHI ,  Teppei MORIKAWA ,  Akihiro HANDA

IPC: F16C41/00 ,  G01D5/20 ,  G01L5/164

Abstract: A detection apparatus includes a base part, a bearing, a discoid rotating part for detection, and a displacement detection unit. The bearing has a first bearing member fixed to a rotating object, and a second bearing member fixed to the base part. The rotating part for detection is provided so as to rotate together with the first bearing member and extends radially outward of the bearing with respect to the first bearing member. The displacement detection unit is provided at a position in the base part which is radially away from the bearing and faces the rotating part for detection in an axial direction of the bearing. Moreover, the displacement detection unit is configured to output a voltage signal according to displacement of the rotating part for detection in the axial direction and displacement of the rotating part for detection in a direction perpendicular to the axial direction.

公开(公告)号：US20230003267A1

公开(公告)日：2023-01-05

申请号：US17940327

申请日：2022-09-08

Applicant: DENSO CORPORATION

Inventor： Hitomi HONDA ,  Yoshinori INUZUKA ,  Yusuke KIMURA ,  Shinji KOMATSU

IPC: F16D48/06 ,  G01D5/245

Abstract: A position detection device includes a magnetic detection element that is positioned radially outside a first clutch component portion and a second clutch component portion of a dog clutch around an axis. The magnetic detection element is provided between a first magnetic flux path portion and a second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating the direction of a magnetic flux passing between the first magnetic flux path portion and the second magnetic flux path portion. The magnetic detection element outputs a sensor signal indicating a position relationship between the first clutch component portion concerning a first hole portion as well as a first tooth portion and the second clutch component portion concerning the second hole portion as well as the second tooth portion, based on changes in magnetic flux directions depending on the position relationship in a rotation direction around the axis.

公开(公告)号：US20200088309A1

公开(公告)日：2020-03-19

申请号：US16569965

申请日：2019-09-13

Applicant: DENSO CORPORATION

Inventor： Masaaki KONO ,  Takahiro TOMEDA ,  Fukuo KITAGAWA ,  Yusuke KIMURA ,  Tadayoshi NAKASE ,  Shinichi KONDO ,  Kazuhiro SASAO ,  Masato ARAI ,  Motoyoshi ANDO

IPC: F16K11/07 ,  F16K27/04 ,  F16F1/04 ,  F16K31/56

Abstract: A spool valve unit includes a sleeve member having a high-pressure port and a low-pressure port, a spool member movably accommodated in the sleeve member in an axial direction, and a spring member for biasing the spool member in a first axial direction. The spool valve unit produces an intermediate fluid pressure to be outputted to an outside of the spool valve unit, when electromagnetic force is applied to the spool member so that the spool member is moved at a high speed between the high-pressure port and the low-pressure port. The spring member is composed of a non-linear spring, a biasing force of which is non-linearly changed with respect to a displacement of the spool member.

公开(公告)号：US20200089261A1

公开(公告)日：2020-03-19

申请号：US16573074

申请日：2019-09-17

Applicant: DENSO CORPORATION

Inventor： Masaaki KONO ,  Yusuke KIMURA ,  Fukuo KITAGAWA ,  Takahiro TOMEDA ,  Tadayoshi NAKASE ,  Shinichi KONDO ,  Kazuhiro SASAO ,  Masato ARAI ,  Motoyoshi ANDO

IPC: G05D16/20 ,  F16K31/06 ,  G05B19/042

Abstract: A current control device includes a target setting unit, a storage unit, an oil pressure ratio calculation unit, a specific current detection unit and a correction unit. The target setting unit adds a dither amplitude to a target current so that the current of the solenoid periodically changes at a dither cycle period longer than a PWM cycle period of the solenoid. The storage unit stores a stroke-current relationship between a stroke of the spool and the current of the solenoid. The oil pressure ratio calculation unit calculates an oil pressure ratio which is a value calculated by dividing an amplitude of the output oil pressure by an average value of the output oil pressure. The specific current detection unit detects a specific current based on the oil pressure ratio. The correction unit corrects the stroke-current relationship based on the specific stroke and the specific current.

公开(公告)号：US20250163977A1

公开(公告)日：2025-05-22

申请号：US19030584

申请日：2025-01-17

Applicant: DENSO CORPORATION

Inventor： Yusuke KIMURA ,  Junji UTE ,  Hiroya ANDO ,  Shuhei OE ,  Daigo ARAKIDA

IPC: F16D48/06

Abstract: A dog clutch control system includes a dog clutch including a first engagement member and a second engagement member, an actuator, a rotational speed detecting unit, an arrival timing predicting unit, and a phase correcting unit. The arrival timing predicting unit predicts an arrival timing at which a rotational speed difference between the first engagement member and the second engagement member is adjusted to a value equal to or less than a predetermined threshold, based on the rotational speeds of the first and second engagement member and a time variation characteristic of the rotational speed difference during a rotational speed adjustment. The phase correcting unit performs a phase correction to bring an engageable timing, which is a timing at which the first engagement member is engageable with the second engagement member after the arrival timing, closer to the arrival timing compared to a case without the phase correction.

公开(公告)号：US20240426345A1

公开(公告)日：2024-12-26

申请号：US18828215

申请日：2024-09-09

Applicant: DENSO CORPORATION

Inventor： Yoshihiro KIDA ,  Takanobu KAWANO ,  Yusuke KIMURA ,  Sadahiro AKAMA ,  Harumi HORIHATA ,  Tetsuya OHMI ,  Yasuhiro KITAURA ,  Atsushi KOBAYASHI ,  Teppei MORIKAWA

IPC: F16C41/00 ,  F16C19/08 ,  G01B11/275

Abstract: A detection device for vehicles includes a base section fixed to a body of a vehicle, and a bearing having an outer ring member, an inner ring member, and rolling elements, which rotatably supports a wheel of the vehicle against the base section. A first bearing member of the outer ring member and the inner ring member is fixed to the wheel, and a second bearing member of the outer ring member and the inner ring member is fixed to the base section. The detection device includes a disk-shaped rotating section for detection that extends radially outward of the bearing with respect to the first bearing member, and a displacement detection section that outputs a signal in response to an axial displacement of the rotating section for detection.