JP2017002845A - 燃料推定装置 - Google Patents
燃料推定装置 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 144
- 238000002485 combustion reaction Methods 0.000 claims abstract description 212
- 238000002347 injection Methods 0.000 claims description 102
- 239000007924 injection Substances 0.000 claims description 102
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000011159 matrix material Substances 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3005—Details not otherwise provided for
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- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0634—Determining a density, viscosity, composition or concentration
- F02D19/0636—Determining a density, viscosity, composition or concentration by estimation, i.e. without using direct measurements of a corresponding sensor
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
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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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
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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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
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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
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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
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2829—Mixtures of fuels
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
- F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
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- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/38—Control for minimising smoke emissions, e.g. by applying smoke limitations on the fuel injection amount
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- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
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- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/028—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the combustion timing or phasing
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/144—Sensor in intake manifold
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- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
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- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
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- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
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Abstract
【解決手段】ECU80(燃料推定装置)は、燃焼特性取得手段81および混合割合推定手段82を備える。燃焼特性取得手段81は、内燃機関10の燃焼に関する物理量を表した燃焼特性値であって、異なる燃焼条件で燃焼した場合の各々の燃焼特性値を取得する。混合割合推定手段82は、燃焼特性取得手段81により取得された複数の燃焼特性値に基づき、燃料に含まれている各種成分の混合割合を推定する。
【選択図】図1
Description
以上、発明の好ましい実施形態について説明したが、発明は上述した実施形態に何ら制限されることなく、以下に例示するように種々変形して実施することが可能である。各実施形態で具体的に組合せが可能であることを明示している部分同士の組合せばかりではなく、特に組合せに支障が生じなければ、明示してなくとも実施形態同士を部分的に組み合せることも可能である。
Claims (8)
- 内燃機関(10)の燃焼に関する物理量を表した燃焼特性値を取得する手段であって、異なる燃焼条件で燃焼した場合の各々の前記燃焼特性値を取得する燃焼特性取得手段(81)と、
前記燃焼特性取得手段により取得された複数の前記燃焼特性値に基づき、燃料に含まれている各種成分の混合割合を推定する混合割合推定手段(82)と、
を備えることを特徴とする燃料推定装置。 - 前記混合割合の推定対象となる成分は、分子構造の種類の違いにより分類される成分であることを特徴とする請求項1に記載の燃料推定装置。
- 前記分子構造の種類には、直鎖パラフィン類、側鎖パラフィン類、ナフテン類および芳香族類の少なくとも1つが含まれていることを特徴とする請求項2に記載の燃料推定装置。
- 前記燃焼条件は、複数種類のパラメータの組み合わせにより特定される条件であることを特徴とする請求項1〜3のいずれか1つに記載の燃料推定装置。
- 複数種類の前記パラメータには、筒内圧、筒内温度、吸気酸素濃度および燃料噴射圧力の少なくとも1つが含まれていることを特徴とする請求項4に記載の燃料推定装置。
- 前記内燃機関は圧縮自着火式であり、
前記燃焼特性値は、前記内燃機関の燃焼室(11a)へ燃料を噴射してから自着火するまでの時間、或いは燃料噴射を指令してから自着火するまでの時間であることを特徴とする請求項1〜5のいずれか1つに記載の燃料推定装置。 - 前記燃焼特性取得手段は、前記内燃機関の1燃焼サイクル中に複数回燃料を噴射する多段噴射を実施するにあたり、最も噴射量が多いメイン噴射の前または後に噴射された燃料の燃焼に関する前記燃焼特性値を取得することを特徴とする請求項1〜6のいずれか1つに記載の燃料推定装置。
- 前記内燃機関の運転中に所定条件を満たした場合に、燃料の噴射を一時的に停止させるように指令する燃料カット指令手段(86)と、
前記燃料カット指令手段による指令期間中に、所望の前記燃焼条件で燃焼させて前記燃焼特性値を取得するカット時取得手段(87)と、
を備えることを特徴とする請求項1〜7のいずれか1つに記載の燃料推定装置。
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JP2015118593A JP2017002845A (ja) | 2015-06-11 | 2015-06-11 | 燃料推定装置 |
DE102016110517.1A DE102016110517A1 (de) | 2015-06-11 | 2016-06-08 | Kraftstoffschätzvorrichtung |
US15/176,540 US9845761B2 (en) | 2015-06-11 | 2016-06-08 | Fuel estimation apparatus |
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JP2015118593A JP2017002845A (ja) | 2015-06-11 | 2015-06-11 | 燃料推定装置 |
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US (1) | US9845761B2 (ja) |
JP (1) | JP2017002845A (ja) |
DE (1) | DE102016110517A1 (ja) |
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JP6477435B2 (ja) * | 2015-11-12 | 2019-03-06 | 株式会社デンソー | 燃焼システムの推定装置 |
JP6536369B2 (ja) | 2015-11-12 | 2019-07-03 | 株式会社デンソー | 潤滑性推定装置および燃料供給制御装置 |
JP6439659B2 (ja) * | 2015-11-12 | 2018-12-19 | 株式会社デンソー | 燃焼システムの推定装置及び制御装置 |
JP6477434B2 (ja) | 2015-11-12 | 2019-03-06 | 株式会社デンソー | 燃焼システムの推定装置 |
JP6436064B2 (ja) * | 2015-11-12 | 2018-12-12 | 株式会社デンソー | デポジット推定装置および燃焼システム制御装置 |
JP6365515B2 (ja) | 2015-11-23 | 2018-08-01 | 株式会社デンソー | センサ故障診断装置 |
JP6384458B2 (ja) * | 2015-11-23 | 2018-09-05 | 株式会社デンソー | 燃焼システム制御装置 |
US10801462B2 (en) * | 2019-02-20 | 2020-10-13 | Ford Global Technologies, Llc | Fuel composition and aging estimation |
EP3956556B1 (en) | 2019-04-16 | 2023-04-12 | Wärtsilä Finland Oy | Heating value estimation |
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DE102016110517A1 (de) | 2016-12-15 |
US20160363084A1 (en) | 2016-12-15 |
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