JP5130162B2 - ハイブリッド車両の制御装置および制御方法 - Google Patents
ハイブリッド車両の制御装置および制御方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 17
- 239000003054 catalyst Substances 0.000 claims description 163
- 239000000446 fuel Substances 0.000 claims description 43
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 238000000746 purification Methods 0.000 claims description 29
- 239000000498 cooling water Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 description 27
- 239000004215 Carbon black (E152) Substances 0.000 description 26
- 150000002430 hydrocarbons Chemical class 0.000 description 23
- 230000006866 deterioration Effects 0.000 description 20
- 239000007789 gas Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 238000002347 injection Methods 0.000 description 10
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- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- -1 hydrocarbons HC Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 239000002828 fuel tank Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D41/0255—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus to accelerate the warming-up of the exhaust gas treating apparatus at engine start
-
- 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
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/067—Introducing corrections for particular operating conditions for engine starting or warming up for starting with control of the choke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/445—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/068—Engine exhaust temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
-
- 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
- F02D2200/023—Temperature of lubricating oil or working fluid
-
- 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
-
- 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
- F02D41/14—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
- F02D41/1441—Plural sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
Description
触媒温度取得部421は、触媒140の温度(触媒温度)TCを取得する。触媒温度取得部421は、触媒140の温度と密接な関係にあるパラメータ(たとえばエンジン水温TW、吸入空気量Gaの積算値、エンジン回転数など)に基づいて触媒温度TCを推定する。
以下、本実施の形態の変形例について説明する。前述の実施の形態においては、エンジン水温TWおよび吸入空気量Gaの積算値に基づいて触媒温度TCを算出し、その算出結果に基づいてエンジン100の運転態様を切り換えていた。これに対し、本変形例は、触媒温度TCを算出することなく、エンジン水温TWおよび吸入空気量Gaの積算値に基づいて直接的にエンジン100の運転態様を切り換えるものである。その他の制御ブロックおよびフローチャートは、前述の実施の形態と同じであるため、ここでの詳細な説明は繰り返さない。
Claims (7)
- 触媒によって排気が浄化される内燃機関を少なくとも1つの動力源とするハイブリッド車両の制御装置であって、前記ハイブリッド車両においては、前記内燃機関を一時的に停止させる間欠運転による走行が可能であり、前記触媒は、前記内燃機関の継続運転中の排気浄化に必要な前記触媒の第1温度よりも前記内燃機関の始動時の排気浄化に必要な前記触媒の第2温度が高いという特性を有し、
前記制御装置は、
前記触媒の温度を取得する取得部と、
前記触媒の温度に基づいて、前記間欠運転を許容する通常運転、前記間欠運転を禁止しつつ前記内燃機関への燃料供給量を前記通常運転時よりも増加させる暖機運転、前記燃料供給量を前記通常運転時と同様にしつつ前記間欠運転を禁止する間欠禁止運転のいずれかの態様で前記内燃機関を制御する制御部とを含み、
前記制御部は、前記触媒の温度が前記第1温度よりも低い場合に前記暖機運転を行ない、前記触媒の温度が前記第1温度と前記第2温度との間である場合に前記間欠禁止運転を行ない、前記触媒の温度が前記第2温度よりも高い場合に前記通常運転を行なう、ハイブリッド車両の制御装置。 - 前記制御部は、前記ハイブリッド車両の始動時に、前記いずれかの態様で前記内燃機関を制御する、請求項1に記載のハイブリッド車両の制御装置。
- 前記制御部は、前記ハイブリッド車両の始動時の前記触媒の温度が前記第1温度と前記第2温度との間である場合、前記触媒の温度が前記第2温度に達するまで前記間欠禁止運転を継続して行なう、請求項1または2に記載のハイブリッド車両の制御装置。
- 前記制御部は、前記ハイブリッド車両の始動時の前記触媒の温度が前記第1温度よりも低い場合に前記触媒の温度が前記第1温度に達するまで前記暖機運転を継続して行なうとともに、前記触媒の温度が前記第2温度に達するまで前記間欠禁止運転を継続して行なう、請求項1または2に記載のハイブリッド車両の制御装置。
- 前記制御装置は、
前記内燃機関の冷却水温を検出するセンサと、
前記内燃機関の吸入空気量を検出するセンサとを含み、
前記取得部は、前記冷却水温および前記吸入空気量に基づいて、前記触媒の温度を推定する、請求項1〜4のいずれかに記載のハイブリッド車両の制御装置。 - 前記取得部は、前記ハイブリッド車両の始動時の前記冷却水温と前記ハイブリッド車両の始動後の前記吸入空気量の積算値とに基づいて、前記触媒の温度を推定する、請求項5に記載のハイブリッド車両の制御装置。
- 触媒によって排気が浄化される内燃機関を少なくとも1つの動力源とするハイブリッド車両の制御装置が行なう制御方法であって、前記ハイブリッド車両においては、前記内燃機関を一時的に停止させる間欠運転による走行が可能であり、前記触媒は、前記内燃機関の継続運転中の排気浄化に必要な前記触媒の第1温度よりも前記内燃機関の始動時の排気浄化に必要な前記触媒の第2温度が高いという特性を有し、
前記制御方法は、
前記触媒の温度を取得するステップと、
前記触媒の温度に基づいて、前記間欠運転を許容する通常運転、前記間欠運転を禁止しつつ前記内燃機関への燃料供給量を前記通常運転時よりも増加させる暖機運転、前記燃料供給量を前記通常運転時と同様にしつつ前記間欠運転を禁止する間欠禁止運転のいずれか
の制御態様で前記内燃機関を制御する制御ステップとを含み、
前記制御ステップは、前記触媒の温度が前記第1温度よりも低い場合に前記暖機運転を行ない、前記触媒の温度が前記第1温度と前記第2温度との間である場合に前記間欠禁止運転を行ない、前記触媒の温度が前記第2温度よりも高い場合に前記通常運転を行なう、ハイブリッド車両の制御方法。
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US12/552,035 US20100058737A1 (en) | 2008-09-05 | 2009-09-01 | Control device and control method of hybrid vehicle |
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JP4449917B2 (ja) * | 2006-02-14 | 2010-04-14 | トヨタ自動車株式会社 | 動力出力装置、その制御方法及び動力出力装置を搭載した車両 |
JP5093319B2 (ja) * | 2010-09-17 | 2012-12-12 | トヨタ自動車株式会社 | ハイブリッド自動車 |
CN102822029A (zh) * | 2011-03-30 | 2012-12-12 | 丰田自动车株式会社 | 车辆、发动机的控制方法以及发动机的控制装置 |
JP5716652B2 (ja) * | 2011-12-21 | 2015-05-13 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP2014234090A (ja) * | 2013-06-03 | 2014-12-15 | トヨタ自動車株式会社 | ハイブリッド自動車の制御装置 |
JP6390100B2 (ja) * | 2013-12-26 | 2018-09-19 | 日産自動車株式会社 | プラグインハイブリッド車両の制御装置 |
KR101646122B1 (ko) | 2014-12-03 | 2016-08-05 | 현대자동차 주식회사 | 연비 개선 방법 및 이를 수행하는 차량용 제어장치 |
JP6725880B2 (ja) * | 2016-09-29 | 2020-07-22 | 三菱自動車工業株式会社 | ハイブリッド車両の制御装置 |
US11285937B2 (en) * | 2017-12-15 | 2022-03-29 | Nissan Motor Co., Ltd. | Catalyst warm-up control method for hybrid vehicle and catalyst warm-up control apparatus for hybrid vehicle |
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JP3381185B2 (ja) * | 1998-09-18 | 2003-02-24 | 本田技研工業株式会社 | ハイブリッド車両の制御装置 |
JP3783430B2 (ja) * | 1998-09-30 | 2006-06-07 | マツダ株式会社 | ハイブリッド車の故障診断装置 |
JP3578044B2 (ja) * | 2000-04-21 | 2004-10-20 | トヨタ自動車株式会社 | ハイブリット車の内燃機関制御装置 |
JP2003247417A (ja) * | 2002-02-21 | 2003-09-05 | Toyota Motor Corp | 車両制御装置 |
JP2004124827A (ja) * | 2002-10-02 | 2004-04-22 | Toyota Motor Corp | 動力出力装置及びハイブリッド型の動力出力装置並びにその制御方法、ハイブリッド車両 |
DE10300298A1 (de) * | 2003-01-02 | 2004-07-15 | Daimlerchrysler Ag | Abgasnachbehandlungseinrichtung und -verfahren |
JP2004225539A (ja) * | 2003-01-20 | 2004-08-12 | Hitachi Ltd | 排気ガス浄化装置 |
JP4325264B2 (ja) * | 2003-04-23 | 2009-09-02 | トヨタ自動車株式会社 | 内燃機関の空燃比制御装置 |
JP2005009474A (ja) * | 2003-05-26 | 2005-01-13 | Toyota Motor Corp | 動力出力装置およびその制御方法 |
JP2004169711A (ja) * | 2004-03-24 | 2004-06-17 | Mitsubishi Electric Corp | 内燃機関の触媒昇温制御装置 |
JP4195018B2 (ja) * | 2005-02-18 | 2008-12-10 | 本田技研工業株式会社 | ハイブリッド車両の制御装置 |
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TWI731029B (zh) | 2016-02-01 | 2021-06-21 | 美商3M新設資產公司 | 具有多個剝離正面之折疊翼片吊具裝置 |
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