JP3783712B2 - ハイブリッド車両における内燃機関の制御方法 - Google Patents
ハイブリッド車両における内燃機関の制御方法 Download PDFInfo
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- 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
- B60K6/48—Parallel type
- B60K6/485—Motor-assist type
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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
- 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
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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
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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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions
- F02D41/1487—Correcting the instantaneous control value
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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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
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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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
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- 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
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/068—Engine exhaust temperature
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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
- 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
- B60W2710/0622—Air-fuel ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/43—Engines
- B60Y2400/435—Supercharger or turbochargers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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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
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
- F02D2200/1004—Estimation of the output torque
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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
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
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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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
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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
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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
- Y02T10/60—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)
- Exhaust Gas After Treatment (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
なお、ここで内燃機関の燃焼空燃比とは、内燃機関の燃焼室内における平均空燃比のことを言うものとする。
なお、ここで通常時の目標蓄電量とは、特別な制御を何ら実施していない通常運転時におけるバッテリの目標蓄電量であり、例えば蓄電量60%等に設定される。
このようにすると、電動ターボチャージャの力行駆動によりバッテリの電力が消費されるため、その分モータジェネレータによる吸収可能トルクを大きくすることができ、上記NOx吸蔵能力回復制御において燃焼空燃比をリッチ状態に変化させるのに伴って発生するトルク段差をより確実に低減することができる。
なお、上述したような硫黄被毒再生制御が実施される場合には、NOx吸蔵触媒15を昇温するためにも燃焼空燃比がリッチ状態にされること等から、一般にNOxの還元浄化制御を実施する場合よりも長い時間燃焼空燃比がリッチ状態とされることになる。
X=TEd+TMp−TM
ステップ111において、上記過剰分Xが算出されるとステップ113に進む。ステップ113においては、モータジェネレータ37が、その発生/吸収トルクTMがTMpとなるように制御されると共に、内燃機関1の燃焼空燃比を所定のリッチ空燃比とする一方で内燃機関1の発生トルクが上記過剰分Xだけ低減されるように発生トルク低減制御を実施して、意図するNOx吸蔵能力回復制御が実施される。
より具体的には、点火時期を遅角することによって内燃機関1の発生トルクTEを低減する場合には、図3(a)に示すような、内燃機関1の発生トルクTEを上記過剰分Xだけ低減するのに必要な遅角量SAdを上記過剰分Xの関数として示したマップを予め作成して電子制御ユニット50のROM52に記憶させておく。そして、このマップに基づいて求めた遅角量SAdだけ点火栓3aの点火時期SAを遅角させる(点火時期SA←SA−SAd)ことによって内燃機関1の発生トルクTEを上記過剰分Xだけ低減するようにする。図3(a)に示されているように上記過剰分Xが大きいほど、遅角量SAdは大きくなる。
一方、バッテリ41の蓄電量SOCは、目標蓄電量OSOCが設定され、実際の蓄電量SOCが目標蓄電量OSOCになるようにモータジェネレータ37での電力消費量/発電量が調整されて制御される。
また、上記電動ターボ制御回路24へは電子制御ユニット50の出力ポート56が接続されており、この電動ターボチャージャ23の作動もモータジェネレータ37の作動と同様、電子制御ユニット50により制御されるようになっている。
そのようにすると、電動ターボチャージャ23の力行駆動によりバッテリ41の電力が消費されるため、その分モータジェネレータ37による吸収可能トルクTMpを大きくすることができ、上記NOx吸蔵能力回復制御において燃焼空燃比をリッチ状態に変化させるのに伴って発生するトルク段差をより確実に低減することができる。また、上記NOx吸蔵能力回復制御における燃費悪化を抑制することができる。
3…燃料噴射弁
12…スロットル弁
15…NOx吸蔵触媒
19…EGR制御弁
23…電動ターボチャージャ
35…変速機
37…モータジェネレータ
41…バッテリ
Claims (2)
- 車両駆動用の内燃機関及びモータジェネレータと、該モータジェネレータに電力を供給すると共に該モータジェネレータにより発電された電力を充電するバッテリと、上記内燃機関の排気ガス通路に配置されたNOx吸蔵触媒とを備えたハイブリッド車両において、上記NOx吸蔵触媒のNOx吸蔵能力を回復させるべく上記内燃機関の燃焼空燃比をリッチ状態とするNOx吸蔵能力回復制御の実施時に生じ得るトルク段差を上記モータジェネレータによって吸収する場合には、
上記モータジェネレータの発生または吸収トルクを推定すると共に、上記モータジェネレータによる吸収可能トルクを上記バッテリの状態及び上記モータジェネレータの特性に基づいて推定し、更に上記内燃機関の燃焼空燃比を上記リッチ状態にすることによる内燃機関の増加トルクを推定して、これら推定された各トルクの値に基づいて上記内燃機関の増加トルクを上記モータジェネレータにより吸収しきれないと判断された場合には、その過剰分に応じて、上記NOx吸蔵能力回復制御が行われる際に、点火時期を遅角することと、吸入空気量を減少することと、排気再循環量を増加することとのうちの少なくとも一つが実施されるハイブリッド車両における内燃機関の制御方法であって、
上記NOx吸蔵能力回復制御の開始時または実施中における上記NOx吸蔵触媒の温度を推定し、該推定触媒温度に基づいて上記NOx吸蔵能力回復制御完了までの必要時間を推定して、該推定必要時間に応じて上記モータジェネレータによる吸収可能トルクの推定値が補正されることを特徴とする、ハイブリッド車両における内燃機関の制御方法。 - 車両駆動用の内燃機関及びモータジェネレータと、該モータジェネレータに電力を供給すると共に該モータジェネレータにより発電された電力を充電するバッテリと、上記内燃機関の排気ガス通路に配置されたNOx吸蔵触媒とを備えたハイブリッド車両において、上記NOx吸蔵触媒のNOx吸蔵能力を回復させるべく上記内燃機関の燃焼空燃比をリッチ状態とするNOx吸蔵能力回復制御の実施時に生じ得るトルク段差を上記モータジェネレータによって吸収する場合には、
上記NOx吸蔵能力回復制御の実施前に、上記バッテリの目標蓄電量が通常時の目標蓄電量よりも低下せしめられるハイブリッド車両における内燃機関の制御方法であって、
上記ハイブリッド車両は更に電動ターボチャージャを備えていて、上記NOx吸蔵能力回復制御の実施中は、上記電動ターボチャージャを力行駆動させることを特徴とする、ハイブリッド車両における内燃機関の制御方法。
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JP2003404670A JP3783712B2 (ja) | 2003-12-03 | 2003-12-03 | ハイブリッド車両における内燃機関の制御方法 |
FR0412623A FR2863373B1 (fr) | 2003-12-03 | 2004-11-29 | Procede de commande d'un moteur a combustion interne dans un vehicule hybride |
DE102004058231A DE102004058231A1 (de) | 2003-12-03 | 2004-12-02 | Verfahren zur Steuerung einer Brennkraftmaschine in einem Hybridfahrzeug |
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US10001069B2 (en) | 2015-07-07 | 2018-06-19 | Hyundai Motor Company | Method for reducing exhaust gas of mild hybrid system |
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JP4631767B2 (ja) * | 2006-03-22 | 2011-02-16 | 日産自動車株式会社 | ハイブリッドシステムの排気浄化装置 |
JP2008007004A (ja) * | 2006-06-30 | 2008-01-17 | Fuji Heavy Ind Ltd | ハイブリッド車両の制御装置 |
DE102007035097B4 (de) * | 2007-07-26 | 2016-05-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Antriebseinheit |
JP5050917B2 (ja) * | 2008-02-25 | 2012-10-17 | マツダ株式会社 | 過給機付エンジンシステム |
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CN105246748B (zh) * | 2013-05-31 | 2017-07-28 | 丰田自动车株式会社 | 混合动力车辆的控制装置 |
JP6070497B2 (ja) * | 2013-10-03 | 2017-02-01 | トヨタ自動車株式会社 | ハイブリッド自動車の制御装置 |
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FR3025833B1 (fr) * | 2014-09-15 | 2017-12-29 | Renault Sas | Groupe motopropulseur equipe d'un compresseur electrique et procede de pilotage de ce groupe motopropulseur |
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DE102015209014A1 (de) * | 2015-05-18 | 2016-11-24 | Robert Bosch Gmbh | Verfahren zur Ansteuerung einer fremderregten elektrischen Maschine zur Unterstützung einer Regeneration eines NOx-Speicherkatalysators |
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JP3569120B2 (ja) * | 1997-12-25 | 2004-09-22 | トヨタ自動車株式会社 | 希薄燃焼内燃機関の燃焼制御装置 |
FR2784626B1 (fr) * | 1998-10-16 | 2000-12-15 | Renault | Groupe motopropulseur hybride |
JP2001050086A (ja) * | 1999-08-09 | 2001-02-23 | Denso Corp | 内燃機関の空燃比制御装置 |
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US10001069B2 (en) | 2015-07-07 | 2018-06-19 | Hyundai Motor Company | Method for reducing exhaust gas of mild hybrid system |
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JP2005163667A (ja) | 2005-06-23 |
DE102004058231A1 (de) | 2005-07-21 |
FR2863373A1 (fr) | 2005-06-10 |
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