公开(公告)号：US11585286B2

公开(公告)日：2023-02-21

申请号：US17655667

申请日：2022-03-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Takafumi Yamada ,  Hiroyuki Akuzawa ,  Noboru Kitahara ,  Takashi Ooga ,  Taichi Watanabe

IPC: F02D41/00 ,  F02D41/24 ,  F02D41/28

Abstract: A data processing method of variable measurement data in an electronic control unit (ECU) is provided. The ECU that processes the data processing method calculates a filtering frequency based on a delay time frequency based on a transmission timing cycle of the measurement data and a processing timing cycle of the measurement data in the ECU, and also based on a pulsation frequency of the measurement data, and removes, from the measurement data, a component of the filtering frequency calculated in the calculation of the filtering frequency.

公开(公告)号：US11480455B2

公开(公告)日：2022-10-25

申请号：US16985496

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Hiroshi Tagawa ,  Hiroyuki Akuzawa ,  Teruaki Kaifu ,  Kengo Ito ,  Noboru Kitahara

IPC: G01F1/68 ,  G01F1/69 ,  G01F5/00 ,  G01F1/684 ,  G01F1/688 ,  G01F15/14 ,  G01F15/18 ,  F02M35/10 ,  G01K1/14 ,  G01K13/02 ,  G01K13/024

Abstract: A physical quantity measurement device includes a housing forming a measurement flow path through which the fluid flows and a container space that houses a part of a detection unit. An inner surface of the housing includes a housing intersecting surface that intersects an arrangement direction in which the measurement flow path and the container space are arranged, a housing flow path surface extending from the housing intersecting surface toward the measurement flow path, and a housing container surface extending from the housing intersecting surface toward the container space. The housing includes a housing partition that protrudes from the inner surface toward the detection unit and contacts the detection unit between the housing and the detection unit such that the housing partition separates the measurement flow path and the container space from each other.

公开(公告)号：US11448543B2

公开(公告)日：2022-09-20

申请号：US16749485

申请日：2020-01-22

Applicant: DENSO CORPORATION

Inventor： Junzo Yamaguchi ,  Noboru Kitahara ,  Hiroshi Tagawa ,  Masaki Inoue ,  Hiroyuki Akuzawa

IPC: G01F15/02 ,  G01K13/02 ,  G01F1/68 ,  G01F5/00 ,  F02M35/10 ,  G01F1/684 ,  G01F1/696 ,  G01F15/14 ,  G01F15/16 ,  G01F15/18 ,  G01K13/024

Abstract: A physical quantity measurement device measures a physical quantity of a fluid. A detection unit has a physical quantity detector that detects a physical quantity of the fluid in a measurement flow channel. A housing accommodates at least a part of the detection unit and forms the measurement flow channel. The housing includes a housing attachment that is attached to a predetermined attaching target, and a position holder holding a position of the detection unit by contacting the detection unit. The housing includes an inward part positioned inward of the attaching target and an outward part positioned outward of the attaching target. The position holder is provided inward of the housing attachment in an alignment direction along which the inward part and the outward part are aligned.

公开(公告)号：US12061667B2

公开(公告)日：2024-08-13

申请号：US17579961

申请日：2022-01-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Takafumi Yamada ,  Hiroyuki Akuzawa ,  Noboru Kitahara ,  Taichi Watanabe

IPC: G06F17/18 ,  G01M15/04

CPC classification number: G06F17/18 ,  G01M15/042

Abstract: A data processing method is a data processing method in which variable measurement data transmitted from a sensor at a first cycle is computationally processed at a second cycle that is longer than the first cycle. The measurement data is acquired in a third cycle that is longer than the first cycle and shorter than the second cycle, an average value of the acquired measurement data is calculated at the second cycle, and computation processing thereof is performed.

公开(公告)号：US11300434B2

公开(公告)日：2022-04-12

申请号：US16985322

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Kengo Ito ,  Hiroyuki Akuzawa ,  Hiroshi Tagawa ,  Teruaki Kaifu ,  Noboru Kitahara

IPC: G01F1/69 ,  G01F5/00 ,  G01F1/684 ,  G01F1/688 ,  G01F15/14 ,  G01F15/18 ,  F02M35/10 ,  G01K1/14 ,  G01K13/02 ,  G01K13/024

Abstract: A physical quantity measurement device includes a housing forming a measurement flow path including a measurement inlet and a measurement outlet. The measurement flow path includes a sensor path in which a physical quantity sensor is disposed, an upstream curved path curved to extend from the sensor path toward the measurement inlet, and a downstream curved path curved to extend from the sensor path toward the measurement outlet. An inner surface of the housing includes an upstream outer curved surface that defines an outer outline of a curved part of the upstream curved path, and a downstream outer curved surface that defines an outer outline of a curve part of the downstream curved path. A degree of recess of the downstream outer curved surface is larger than a degree of recess of the upstream outer curved surface.

公开(公告)号：US11313709B2

公开(公告)日：2022-04-26

申请号：US16985663

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Akuzawa ,  Kengo Ito ,  Hiroshi Tagawa ,  Teruaki Kaifu ,  Noboru Kitahara

IPC: G01F1/69 ,  G01F5/00 ,  G01F1/684 ,  G01F1/688 ,  G01F15/14 ,  G01F15/18 ,  F02M35/10 ,  G01K1/14 ,  G01K13/02 ,  G01K13/024

Abstract: A physical quantity measurement device includes a housing forming a measurement flow path in which a sensor support supports a physical quantity sensor. The measurement flow path includes a sensor path in which the physical quantity sensor is disposed, an upstream curved path between the sensor path and an inlet, and a downstream curved path between the sensor path and an outlet. The housing includes a measurement narrowed portion that gradually narrows the measurement flow path in a direction from the inlet toward the physical quantity sensor. An upstream end of the sensor support is provided upstream of the measurement narrowed portion in an arrangement cross section along an imaginary straight line passing through the physical quantity sensor and extending in an arrangement direction in which the upstream curved path and the downstream curved path are arranged.

公开(公告)号：US11255709B2

公开(公告)日：2022-02-22

申请号：US16985547

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Noboru Kitahara ,  Teruaki Kaifu ,  Kengo Ito ,  Hiroyuki Akuzawa ,  Hiroshi Tagawa

IPC: G01F1/69 ,  G01F5/00 ,  G01F1/684 ,  G01F1/688 ,  G01F15/14 ,  G01F15/18 ,  F02M35/10 ,  G01K1/14 ,  G01K13/02 ,  G01K13/024

Abstract: A physical quantity measurement device includes a housing forming a through flow path, and a measurement flow path branching from the through flow path. A physical quantity sensor is provided in the measurement flow path. An inner surface of the housing includes an inlet ceiling surface and an inlet floor surface which face each other and define an inlet through path that is between and connects an inlet of the through flow path and an inlet of the measurement flow path, The inlet ceiling surface includes a ceiling inclined surface that extends from the inlet of the through flow path and is inclined with respect to the inlet floor surface. A distance between the ceiling inclined surface and the inlet floor surface gradually decreases in a direction from the inlet of the through flow path toward an outlet of the through flow path.

公开(公告)号：US10962391B2

公开(公告)日：2021-03-30

申请号：US16267421

申请日：2019-02-05

Applicant: DENSO CORPORATION

Inventor： Takuma Tsuchiya ,  Junzo Yamaguchi ,  Takashi Enomoto ,  Hiroyuki Akuzawa

IPC: G01D11/24 ,  G01F1/684 ,  G01M15/02 ,  G01N27/22 ,  F02D41/18

Abstract: A sensor body contains a sensor element in a body recess opened at a body opening. A sensor substrate has a mounting surface on which a circuit element for processing a detection signal is mounted and holds the sensor body on the mounting surface. A sensor cover has a cover window penetrating between an intake passage and the body opening and covers the sensor body. A sensor filter is interposed between the sensor body and the sensor cover. A potting resin body is cured on the mounting surface so as to seal the circuit element. The sensor cover is embedded in the potting resin body on the outer peripheral side of the sensor body.

公开(公告)号：US10480973B2

公开(公告)日：2019-11-19

申请号：US15665721

申请日：2017-08-01

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Akuzawa

IPC: G01M15/04 ,  G01F1/684 ,  F02D9/10 ,  G01F1/69 ,  F02M35/10 ,  F02D41/18 ,  F02D9/02 ,  G01N27/10 ,  G01F5/00

Abstract: A flow measuring device includes a housing including a bypass passage and a flow sensing chip located in the bypass passage and including a sensing surface portion. A throttle portion that is a part of a flowing passage wall facing a sensing surface portion throttles a cross-sectional area of a bypass passage. A position where the throttle portion starts is referred to as a start point position, and a position of the throttle portion where a distance between a gravity center of the sensing surface portion and the throttle portion is shortest is referred to as an end point position. The start point position and the end point position define an imagination line, and the imagination line and the flowing direction define an angle that is in a range from 0 degrees to 20 degrees.