JPWO2015151535A1 - 物理量検出装置 - Google Patents
物理量検出装置 Download PDFInfo
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- 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
- F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
- G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/228—Circuits therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
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- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/281—Interface circuits between sensors and control unit
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- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/286—Interface circuits comprising means for signal processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0418—Air humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
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- Testing Or Calibration Of Command Recording Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Testing Of Engines (AREA)
Abstract
Description
図1は、本発明の物理量検出装置が適用されるエンジン制御システムの概略図、図2は、本発明の物理量検出装置の一実施形態を説明する機能ブロック図である。
従来のセンサ100は、湿度センサ101や温度センサ102で湿度や温度などの物理量を計測し、電圧や信号周波数などの間接的な物理現象に変調して出力するのが一般的であった。これらの情報はECU110に取り込まれ処理され、ECU110の絶対湿度計算部111と誤差計算部112で他のセンサなどの情報と組み合わせて別の物理量や各種の補正を行い、制御に利用されていた。例えば絶対湿度計算部111は、湿度センサ101の湿度情報と温度センサ102の温度情報から絶対湿度を求める。湿度センサ101、温度センサ102とも公差や温度特性などがあるため、総合誤差は複雑であり、温度によっては絶対湿度の誤差は、絶対湿度の情報が使い物にならないくらい、悪化する。したがって、ECU110の誤差計算部112で絶対湿度を求めて使うためには、煩雑な誤差管理が必要となるが、この誤差を計算するための演算処理は極めて煩雑で、開発コストもかかる。
11 エアフローセンサ
21 湿度センサ(第1物理量検出部)
31 温度センサ(第2物理量検出部)
41 信号出力部
42 記憶部
43 総合誤差計算部
61 絶対湿度計算部(第3物理量計算部)
Claims (6)
- 複数の物理量をそれぞれ検出する複数の物理量検出部と、
前記複数の物理量検出部が個々に有する誤差特性を記憶する記憶部と、
該複数の物理量検出部の少なくとも二つの物理量検出部で検出された少なくとも2つの物理量を用いて別の物理量を計算する物理量計算部と、
前記複数の物理量検出部の誤差特性を前記記憶部から読み出して前記別の物理量の総合誤差を計算する総合誤差計算部と、
を有することを特徴とする物理量検出装置。 - 前記物理量検出部は、第1物理量を検出する第1物理量検出部と、第2物理量を検出する第2物理量検出部を有し、
前記物理量計算部は、前記第1物理量と前記第2物理量を用いて第3物理量を計算し、 前記記憶部は、前記第1物理量検出部の誤差特性と前記第2物理量検出部の誤差特性を記憶し、
前記総合誤差計算部は、前記記憶部に記憶されている第1物理量検出部の誤差特性と第2物理量検出部の誤差特性を用いて前記第3物理量の総合誤差を計算する
ことを特徴とする請求項1に記載の物理量検出装置。 - 前記第1物理量と前記第2物理量と前記総合誤差の各情報を、単一または2線のディジタル通信で重畳して出力することを特徴とする請求項2に記載の物理量検出装置。
- 前記総合誤差計算部は、前記第1物理量と前記第2物理量を用いて格子状に配置されたマップまたは複数のテーブルを検索することによって前記第3物理量の総合誤差を計算することを特徴とする請求項3に記載の物理量検出装置。
- 前記総合誤差計算部は、前記総合誤差の情報を、外部からの要求と、電源投入時からの時間と、前記第1物理量検出部と前記第2物理量検出部が検出信号を出力する回数とのいずれかによって、一括して出力することを特徴とする請求項2から請求項4のいずれか一項に記載の物理量検出装置。
- 内燃機関に吸入される吸入空気の物理量を検出する物理量検出装置であって、
前記吸入空気の相対湿度を検出する相対湿度センサと、
前記吸入空気の温度を検出する温度センサと、
前記相対湿度と前記温度を用いて絶対湿度を計算する絶対湿度計算部と、
前記相対湿度センサの誤差特性と、前記温度センサの誤差特性を記憶する記憶部と、
該記憶部に記憶された相対湿度センサの誤差特性と温度センサの誤差特性を用いて絶対湿度の総合誤差を計算する総合誤差計算部と、
を有することを特徴とする物理量検出装置。
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JP2014073519 | 2014-03-31 | ||
JP2014073519 | 2014-03-31 | ||
PCT/JP2015/050193 WO2015151535A1 (ja) | 2014-03-31 | 2015-01-07 | 物理量検出装置 |
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JPWO2015151535A1 true JPWO2015151535A1 (ja) | 2017-04-13 |
JP6161797B2 JP6161797B2 (ja) | 2017-07-12 |
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US (1) | US10006392B2 (ja) |
EP (1) | EP3128297B1 (ja) |
JP (1) | JP6161797B2 (ja) |
CN (1) | CN106164624B (ja) |
WO (1) | WO2015151535A1 (ja) |
Families Citing this family (9)
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US10126260B2 (en) | 2015-05-07 | 2018-11-13 | International Business Machines Corporation | Moisture detection and ingression monitoring systems and methods of manufacture |
US9739199B2 (en) * | 2015-10-30 | 2017-08-22 | General Electric Company | Intercooled gas turbine optimization |
JP6421763B2 (ja) * | 2016-01-13 | 2018-11-14 | トヨタ自動車株式会社 | 湿度センサの異常検出装置 |
JP6431005B2 (ja) | 2016-07-13 | 2018-11-28 | ファナック株式会社 | センサ装置 |
JP6919176B2 (ja) * | 2016-10-28 | 2021-08-18 | 株式会社デンソー | 空気物理量センサ |
CN106681139B (zh) * | 2016-12-19 | 2020-01-14 | 重庆承亿机电设备有限公司 | 变频器频率模拟给定自动控制方法 |
WO2019139153A1 (ja) * | 2018-01-15 | 2019-07-18 | 国立大学法人九州工業大学 | ペロブスカイト化合物及びこれを用いた光変換素子 |
CN112119286B (zh) * | 2018-05-24 | 2023-09-22 | 日立安斯泰莫株式会社 | 物理量检测装置 |
JP7412254B2 (ja) * | 2020-04-02 | 2024-01-12 | 三菱電機株式会社 | 物体認識装置および物体認識方法 |
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JPH09113310A (ja) * | 1995-10-13 | 1997-05-02 | Denso Corp | センサ装置 |
JP2004503746A (ja) * | 2000-07-11 | 2004-02-05 | テスト アーゲー | 気体中の湿度を判定する装置および方法 |
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- 2015-01-07 US US15/126,298 patent/US10006392B2/en active Active
- 2015-01-07 EP EP15773168.8A patent/EP3128297B1/en active Active
- 2015-01-07 CN CN201580017261.7A patent/CN106164624B/zh active Active
- 2015-01-07 JP JP2016511403A patent/JP6161797B2/ja active Active
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JPH09113310A (ja) * | 1995-10-13 | 1997-05-02 | Denso Corp | センサ装置 |
JP2004503746A (ja) * | 2000-07-11 | 2004-02-05 | テスト アーゲー | 気体中の湿度を判定する装置および方法 |
JP2011099757A (ja) * | 2009-11-06 | 2011-05-19 | Hitachi Automotive Systems Ltd | 熱式流体流量センサおよびその製造方法 |
JP2014048246A (ja) * | 2012-09-03 | 2014-03-17 | National Univ Corp Shizuoka Univ | 物理量検出システム、物理量検出方法および物理量検出プログラム |
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WO2015151535A1 (ja) | 2015-10-08 |
US20170082051A1 (en) | 2017-03-23 |
CN106164624B (zh) | 2017-11-21 |
JP6161797B2 (ja) | 2017-07-12 |
EP3128297A4 (en) | 2017-11-08 |
EP3128297A1 (en) | 2017-02-08 |
CN106164624A (zh) | 2016-11-23 |
EP3128297B1 (en) | 2019-09-11 |
US10006392B2 (en) | 2018-06-26 |
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