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1.发明申请公开(公告)号：US20190277820A1
公开(公告)日：2019-09-12
申请号：US16424618
申请日：2019-05-29
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Teruaki KAIFU
Abstract: A humidity measurement device is configured to measure a humidity of a gas. The humidity measurement device includes: a second-order calculation part to calculate a second-order differential value by performing second-order differentiation by time on a humidity signal output from a humidity detection part; and an adherence determination part to determine whether a liquid has adhered to the humidity detection part based on the second-order differential value obtained by the second-order calculation part.
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公开(公告)号：US20200370937A1
公开(公告)日：2020-11-26
申请号：US16985416
申请日：2020-08-05
Applicant: DENSO CORPORATION
Inventor： Hiroyuki AKUZAWA , Hiroshi TAGAWA , Teruaki KAIFU , Kengo ITO , Noboru KITAHARA
IPC: G01F1/688
Abstract: A physical quantity measurement device includes a housing forming a measurement flow path, a physical quantity sensor that detects a physical quantity of fluid in the measurement flow path, and a sensor support that supports the physical quantity sensor. The sensor support includes a support front surface on which the physical quantity sensor is disposed, and a support back surface behind the support front surface. The housing includes a floor surface facing a support end of the sensor support, a front wall surface facing the support front surface, and a back wall surface opposite to the front wall surface across the floor surface and facing the support back surface. A front distance between the physical quantity sensor and the front wall surface in a front-back direction is larger than a floor distance between the floor surface and the support end in a height direction orthogonal to the front-back direction.
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公开(公告)号：US20170074196A1
公开(公告)日：2017-03-16
申请号：US15264648
申请日：2016-09-14
Applicant: DENSO CORPORATION
Inventor： Teruaki KAIFU , Keisuke ITAKURA
CPC classification number: F02D41/18 , F02D2200/0418 , F02D2400/18 , F02M35/10386 , F02M35/10393 , G01M15/05
Abstract: The present disclosure provides a flow rate measuring device including a flow rate detecting body, a humidity detecting body, and a base. The flow rate detecting body protrudes inside of an intake passage. The humidity detecting body protrudes inside of the intake passage at a position away from the flow rate detecting body. The base is connected to the flow rate detecting body and the humidity detecting body. The humidity detecting body holds a sensor chip that includes a humidity detecting element sensitive to the humidity of the intake air. A length, along a flow direction of the intake air, of an exposed portion of the humidity detecting body is defined as a referential length. The humidity detecting element exists within a range from an upstream end of the exposed portion of the humidity detecting body to a position of half the referential length.
Abstract translation: 本公开提供一种流量测量装置，其包括流量检测体，湿度检测体和基部。 流量检测体突出在进气通道的内部。 湿度检测体在远离流量检测体的位置处在进气通道的内部突出。 基座与流量检测体和湿度检测体连接。 湿度检测体保持包括对进气的湿度敏感的湿度检测元件的传感器芯片。 将湿度检测体的露出部分沿进气的流动方向的长度定义为参考长度。 湿度检测元件存在于从湿度检测体的露出部的上游端到参考长度的一半的位置的范围内。
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公开(公告)号：US20200319003A1
公开(公告)日：2020-10-08
申请号：US16910585
申请日：2020-06-24
Applicant: DENSO CORPORATION
Inventor： Junzo YAMAGUCHI , Noboru KITAHARA , Hiroshi TAGAWA , Masaki INOUE , Kengo ITO , Teruaki KAIFU
IPC: G01F1/684
Abstract: A physical quantity measurement device includes a measurement channel through which the fluid flows to be measured, a physical quantity detector that detects a physical quantity of a fluid in the measurement channel, a housing forming the measurement channel, and a measurement outlet provided in the housing as a downstream end of the measurement channel. An outer peripheral surface of the housing includes an outer peripheral flat surface that extends in an arrangement direction along which an upstream end and a downstream end of the housing are arranged, and an outer peripheral inclined surface inclined with respect to the outer peripheral flat surface and provided between the upstream end and the outer peripheral flat surface in the arrangement direction. The measurement outlet is positioned upstream of the downstream end of the housing.
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公开(公告)号：US20200003597A1
公开(公告)日：2020-01-02
申请号：US16564017
申请日：2019-09-09
Applicant: DENSO CORPORATION
Inventor： Teruaki KAIFU , Noboru KITAHARA , Kengo ITO
Abstract: An air flow rate measuring device measures an air flow rate based on an output value of a sensing unit placed in an environment that allows air to flow therethrough. The air flow rate measuring device includes: an acquisition unit configured to acquire the output value; a storage unit configured to store uneven flow information that indicates an uneven flow state of the air in the environment; a pulsation error correction unit configured to correct the air flow rate by using at least one of the uneven flow information and the output value such that the pulsation error Err in the air flow rate caused by the uneven flow becomes smaller.
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Patent Agency Ranking
公开(公告)号：US20190162629A1
公开(公告)日：2019-05-30
申请号：US16265207
申请日：2019-02-01
Applicant: DENSO CORPORATION
Inventor： Teruaki KAIFU
Abstract: A humidity measuring device is located at a vehicle and includes a humidity sensing unit configured to detect a humidity of an air, a humidity information acquisition unit configured to acquire a variation quantity of the humidity with time or a humidity information that is information relating to the variation quantity of the humidity with time, a vehicle information acquisition unit configured to acquire a vehicle information including at least one of information indicating a driving state of the vehicle or information of an attachment environment of the humidity sensing unit, a threshold setting unit configured to set a threshold for determining whether water is adhered to the humidity sensing unit, based on the vehicle information, and an adhesion determination unit configured to compare the humidity information with the threshold and to determine that water is adhered to the humidity sensing unit when the humidity information reaches the threshold.
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公开(公告)号：US20160290893A1
公开(公告)日：2016-10-06
申请号：US15086902
申请日：2016-03-31
Applicant: DENSO CORPORATION
Inventor： Keisuke ITAKURA , Teruaki KAIFU
CPC classification number: G01N27/121 , G01F1/00 , G01F1/6845 , G01F5/00
Abstract: A measurement device includes a bypass housing placed at a position in the intake duct that introduces an intake air to an internal combustion engine and defining a passage through which a part of the intake air flowing through an interior of the intake duct passes, a flowing amount sensor measuring a flowing amount of the intake air passing through the interior of the bypass housing, a humidity detection element measuring a humidity of the intake air passing through a position in the vicinity of the bypass housing, and a heat discharge portion being directly in contact with the intake air and being thermally bonded to the humidity detection element.
Abstract translation: 测量装置包括：旁路箱，其设置在进气管道中的一个位置处，该进气管道将进气排放到内燃机中，并限定一个通道，一部分通过进气管道内部流动的进气通过， 测量通过旁路箱体内部的进气的流量的传感器，测量通过旁路箱附近的位置的进气的湿度的湿度检测元件和直接接触的排热部 与吸入空气并热粘合到湿度检测元件。
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公开(公告)号：US20210108952A1
公开(公告)日：2021-04-15
申请号：US17132292
申请日：2020-12-23
Applicant: DENSO CORPORATION
Inventor： Noboru KITAHARA , Kengo ITO , Teruaki KAIFU , Amane HIGASHI
Abstract: A measurement control device measures an air flow rate using an output value of a sensing portion that outputs a signal according to the air flow rate, and outputs the measurement result of the air flow rate to a predetermined external device. The measurement control device includes: a pulsation state calculator that calculates a pulsation state, which is a state of pulsation generated in the air flow rate, by using the output value of the sensing portion instead of acquiring an output value from an external device; and a flow rate correcting unit that corrects the air flow rate using the pulsation state calculated by the pulsation state calculator.
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公开(公告)号：US20200370941A1
公开(公告)日：2020-11-26
申请号：US16985496
申请日：2020-08-05
Applicant: DENSO CORPORATION
Inventor： Hiroshi TAGAWA , Hiroyuki AKUZAWA , Teruaki KAIFU , Kengo ITO , Noboru KITAHARA
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.
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公开(公告)号：US20190338733A1
公开(公告)日：2019-11-07
申请号：US16512831
申请日：2019-07-16
Applicant: DENSO CORPORATION
Inventor： Noboru KITAHARA , Hajime MASHITA , Takashi OOGA , Teruaki KAIFU
Abstract: A temperature sensor differs from a relative humidity sensor in responsiveness when the temperature of air changes. An absolute humidity acquisition unit acquires absolute humidity of air from outputs from the temperature sensor and the relative humidity sensor. A delay adjustment unit is to delay an output from one of the temperature sensor and the relative humidity sensor, which is a high response sensor having a higher responsiveness, and to reconcile change-behaviors of the output from the temperature sensor and the output from the relative humidity sensor in response to a temperature change in air. The absolute humidity acquisition unit acquires the absolute humidity based on the output from the other of the temperature sensor and the relative humidity sensor, which is a low response sensor having a lower responsiveness, and the sensor signal, which is from the high response sensor and delayed in the delay adjustment unit.
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