IN2012DE00333A - - Google Patents

Info

Publication number
IN2012DE00333A
IN2012DE00333A IN333DE2012A IN2012DE00333A IN 2012DE00333 A IN2012DE00333 A IN 2012DE00333A IN 333DE2012 A IN333DE2012 A IN 333DE2012A IN 2012DE00333 A IN2012DE00333 A IN 2012DE00333A
Authority
IN
India
Prior art keywords
humidity
space
intake pipe
bypass passage
structural component
Prior art date
Application number
Inventor
Takayuki Saito
Keiji Hanzawa
Takayuki Yogo
Original Assignee
Hitachi Automotive Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Publication of IN2012DE00333A publication Critical patent/IN2012DE00333A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/04—Compensating or correcting for variations in pressure, density or temperature of gases to be measured
    • G01F15/043—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means
    • G01F15/046—Compensating or correcting for variations in pressure, density or temperature of gases to be measured using electrical means involving digital counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F5/00—Measuring a proportion of the volume flow

Abstract

In relation to a humidity sensor sensitive to water and contamination, a sensor implementation structure that achieves both the protection performance against water and contaminants and measurement performance such as humidity responsiveness is provided. A sensor structure has a mass airflow measurement element that measures a mass airflow flowing in an intake pipe, a humidity sensing element that senses humidity of air flowing in the intake pipe, a housing structural component having a connector that carries out input/output to/from outside and a terminal component of the connector, and a bypass passage that is composed by using part of the housing structural component and takes in part of the air that flows in the intake pipe, the mass airflow measurement element being mounted in the bypass passage; wherein space is provided in the housing structural component in the vicinity of the bypass passage, the humidity sensing element is mounted in the space, and the part of the space does not have a structure sealed by an adhesive, a seal material, or the like.
IN333DE2012 2011-02-09 2012-02-06 IN2012DE00333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011025559A JP5396410B2 (en) 2011-02-09 2011-02-09 Sensor structure

Publications (1)

Publication Number Publication Date
IN2012DE00333A true IN2012DE00333A (en) 2015-04-10

Family

ID=45655498

Family Applications (1)

Application Number Title Priority Date Filing Date
IN333DE2012 IN2012DE00333A (en) 2011-02-09 2012-02-06

Country Status (5)

Country Link
US (1) US8549901B2 (en)
EP (1) EP2487355B1 (en)
JP (1) JP5396410B2 (en)
CN (1) CN102636218B (en)
IN (1) IN2012DE00333A (en)

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DE102010043083A1 (en) * 2010-10-28 2012-05-03 Robert Bosch Gmbh Sensor device for detecting a flow characteristic of a fluid medium
JP5557767B2 (en) * 2011-02-09 2014-07-23 日立オートモティブシステムズ株式会社 Sensor structure
JP5445535B2 (en) * 2011-08-09 2014-03-19 株式会社デンソー Air flow measurement device
JP5675708B2 (en) * 2012-06-15 2015-02-25 日立オートモティブシステムズ株式会社 Thermal flow meter
JP5675717B2 (en) * 2012-06-29 2015-02-25 日立オートモティブシステムズ株式会社 Air physical quantity detector
DE102012218758A1 (en) 2012-10-15 2014-04-17 Robert Bosch Gmbh Sensor arrangement for determining the moisture content of a flowing in a main flow fluid medium
JP6208251B2 (en) * 2013-11-07 2017-10-04 日立オートモティブシステムズ株式会社 Physical quantity measuring device
JP6090116B2 (en) * 2013-11-07 2017-03-08 株式会社デンソー Flow measuring device
EP3081929B1 (en) * 2013-12-10 2019-04-10 Hitachi Automotive Systems, Ltd. Humidity measurement device
JP6142840B2 (en) * 2014-04-28 2017-06-07 株式会社デンソー Air flow measurement device
JP6194852B2 (en) 2014-06-06 2017-09-13 株式会社デンソー Air flow measurement device with humidity detection function
JP6237495B2 (en) * 2014-06-27 2017-11-29 株式会社デンソー Air flow measurement device
CN106537099B (en) 2014-07-30 2020-03-24 日立汽车系统株式会社 Physical quantity detecting device
JP6184915B2 (en) * 2014-07-30 2017-08-23 日立オートモティブシステムズ株式会社 Physical quantity detection device
US10203257B2 (en) * 2014-07-30 2019-02-12 Hitachi Automotive Systems, Ltd. Physical-quantity detection device
EP3176546B1 (en) 2014-07-30 2019-02-20 Hitachi Automotive Systems, Ltd. Physical-quantity detection device
JP5826355B1 (en) * 2014-10-03 2015-12-02 三菱電機株式会社 Flow measuring device
JP6686276B2 (en) * 2014-12-09 2020-04-22 株式会社デンソー Air flow meter
JP6426205B2 (en) * 2015-01-30 2018-11-21 日立オートモティブシステムズ株式会社 Electronic device
JP6413930B2 (en) * 2015-05-28 2018-10-31 株式会社デンソー Air flow measurement device
JP6641789B2 (en) * 2015-08-27 2020-02-05 株式会社デンソー Air flow measurement device
JP6641820B2 (en) 2015-09-16 2020-02-05 株式会社デンソー Flow measurement device
EP3358314B1 (en) * 2015-09-30 2021-05-12 Hitachi Automotive Systems, Ltd. Physical quantity detection device
JP6474342B2 (en) * 2015-10-28 2019-02-27 日立オートモティブシステムズ株式会社 Physical quantity detection device
JP6387953B2 (en) * 2015-12-22 2018-09-12 株式会社デンソー Air flow measurement device
JP6812688B2 (en) 2016-07-20 2021-01-13 株式会社デンソー Intake flow measuring device
JP6919176B2 (en) * 2016-10-28 2021-08-18 株式会社デンソー Air physical quantity sensor
JP6565867B2 (en) 2016-10-28 2019-08-28 株式会社デンソー Air physical quantity sensor
DE112017004373T5 (en) * 2016-11-30 2019-05-16 Hitachi Automotive Systems, Ltd. Measuring device for determining the flow velocity of air
JP6851466B2 (en) * 2017-04-21 2021-03-31 日立Astemo株式会社 Humidity measuring device
JP6855590B2 (en) * 2017-09-29 2021-04-07 日立Astemo株式会社 Physical quantity detector
DE202018100186U1 (en) * 2018-01-15 2018-01-26 Sensirion Automotive Solutions Ag Sensor module for air quality measurement
JP7225549B2 (en) 2018-03-23 2023-02-21 株式会社デンソー Intake device
WO2020202723A1 (en) * 2019-03-29 2020-10-08 日立オートモティブシステムズ株式会社 Physical quantity detection device
JP2021039026A (en) * 2019-09-04 2021-03-11 株式会社デンソー Aur flowrate measuring device
AT524543B1 (en) * 2021-03-25 2022-07-15 Avl List Gmbh Measuring device for determining a nitrogen and/or hydrogen flow
CN114593780B (en) * 2022-05-09 2022-07-15 江苏双辉环境科技有限公司 Water floating rate testing device for water retaining curtain of cooling tower

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JP4929333B2 (en) * 2009-09-30 2012-05-09 日立オートモティブシステムズ株式会社 Sensor structure

Also Published As

Publication number Publication date
EP2487355A1 (en) 2012-08-15
JP5396410B2 (en) 2014-01-22
US8549901B2 (en) 2013-10-08
EP2487355B1 (en) 2021-05-26
CN102636218A (en) 2012-08-15
JP2012163505A (en) 2012-08-30
CN102636218B (en) 2015-04-08
US20120198925A1 (en) 2012-08-09

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