JP7183915B2 - ハイブリッド車両およびその制御方法 - Google Patents
ハイブリッド車両およびその制御方法 Download PDFInfo
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- JP7183915B2 JP7183915B2 JP2019066624A JP2019066624A JP7183915B2 JP 7183915 B2 JP7183915 B2 JP 7183915B2 JP 2019066624 A JP2019066624 A JP 2019066624A JP 2019066624 A JP2019066624 A JP 2019066624A JP 7183915 B2 JP7183915 B2 JP 7183915B2
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- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- B60K6/445—Differential gearing distribution type
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- B60W30/1882—Controlling power parameters of the driveline, e.g. determining the required power characterised by the working point of the engine, e.g. by using engine output chart
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02D19/12—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 non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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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- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
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- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B60Y2400/435—Supercharger or turbochargers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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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
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
<ハイブリッド車両の構成>
図1は、本開示の実施の形態に従うハイブリッド車両の全体構成図である。図1を参照して、車両1は、ハイブリッド車両であって、エンジン10と、第1モータジェネレータ21と、第2モータジェネレータ22と、遊星歯車機構30と、駆動装置40と、駆動輪50と、電力制御ユニット(PCU:Power Control Unit)60と、バッテリ70と、電子制御ユニット(ECU:Electronic Control Unit)100とを備える。
図2は、エンジン10の構成の一例を示す図である。図2を参照して、エンジン10は、たとえば直列4気筒型の火花点火式内燃機関である。エンジン10は、エンジン本体11を備える。エンジン本体11は、4つの気筒111~114を含む。4つの気筒111~114は一方向に並べられている。各気筒111~114の構成は同等であるため、以下では気筒111の構成について代表的に説明する。
図3は、車両1の制御システムの構成例を示す図である。図3を参照して、車両1は、車速センサ801と、アクセル開度センサ802と、第1モータジェネレータ回転速度センサ803と、第2モータジェネレータ回転速度センサ804と、エンジン回転速度センサ805と、タービン回転速度センサ806と、過給圧センサ807と、ノックセンサ808と、クランク角センサ809と、燃焼圧センサ810と、電池センサ811と、モータジェネレータ温度センサ812と、インバータ温度センサ813と、タービン温度センサ814とを含む。ECU100は、HV-ECU110と、MG-ECU120と、エンジンECU130とを含む。
図4は、エンジン10の動作の一例をエンジン回転速度NeとエンジントルクTeとの座標平面を用いて説明するための図である。図4および後述する図5において、横軸はエンジン回転速度Neを表し、縦軸はエンジントルクTeを表す。
図5は、本実施の形態における最大トルク決定処理を説明するための図である。図5を参照して、最大トルク決定処理においては、燃料が高マンガン燃料でない場合(あるいは、燃料が高マンガン燃料であると判定される前)には、「第1の最大トルクラインMAX1」が設定される。第1の最大トルクラインMAX1は、図4に示した最大トルクラインMAXと同様のトルクラインである。
第2の最大トルクラインMAX2を設定することでエンジントルクTeの上昇を制限(抑制)すると、所望の車両駆動パワーを得るためにはバッテリ70からの持出し(放電電力)を増加させることが求められる可能性がある。しかし、バッテリ70からの放電が放電電力上限値Woutに達して制限されている場合には、それ以上、バッテリ70からの放電電力を増加させることができない。よって、本実施の形態では、放電電力上限値Woutについても燃料の性状に応じて切り替えるものとする。
図7は、本実施の形態における最大トルク決定処理の一例を示すフローチャートである。図7および後述する図8に示すフローチャートに示される一連の処理は、HV-ECU110において所定の制御周期毎に繰り返し実行される。各ステップ(以下、Sと略す)は、基本的にはHV-ECU110によるソフトウェア処理によって実現されるが、HV-ECU110内に作製された電子回路によるハードウェア処理によって実現されてもよい。
Claims (5)
- ハイブリッド車両であって、
前記ハイブリッド車両の動力源である、過給機を含む内燃機関と、
前記内燃機関における低速早期着火の発生を検出するセンサと、
前記ハイブリッド車両の動力源である回転電機と、
前記回転電機に電力を供給する蓄電装置と、
前記内燃機関および前記回転電機を制御するように構成された制御装置とを備え、
前記制御装置は、前記低速早期着火の発生が検出された場合には、前記低速早期着火の発生が検出されていない場合と比べて、前記内燃機関が前記過給機を用いて出力可能な最大トルクを制限することで、所定領域外に位置する前記内燃機関の動作点が前記所定領域内に移動しないようにし、前記最大トルクの制限に伴い前記内燃機関の出力が不足したときには、当該出力不足分を前記蓄電装置からの供給電力により補い、
前記所定領域は、前記低速早期着火が発生しやすい低回転高負荷の領域である、ハイブリッド車両。 - 前記制御装置は、前記低速早期着火の発生が検出された場合には、前記低速早期着火の 発生が検出されていない場合と比べて前記最大トルクを制限することで、前記所定領域内 に位置する前記動作点を前記所定領域外に移動させ、前記最大トルクの制限に伴い前記内 燃機関の出力が不足したときには、当該出力不足分を前記蓄電装置からの供給電力により 補う、請求項1に記載のハイブリッド車両。
- 前記制御装置は、前記低速早期着火の発生が検出された場合には、前記低速早期着火の発生が検出されていない場合と比べて、前記蓄電装置から前記回転電機に供給可能な電力の制御上限値を大きくする、請求項1または2に記載のハイブリッド車両。
- 前記制御装置は、第1および第2の条件のうちの少なくとも一方が成立した場合に、前記低速早期着火の発生が検出されたと判定し、
前記第1の条件は、前回の給油時以降における前記低速早期着火の検出回数が所定回数を上回ったとの条件であり、
前記第2の条件は、所定期間内における前記低速早期着火の検出頻度が所定頻度を上回ったとの条件である、請求項1~3のいずれか1項に記載のハイブリッド車両。 - 過給機を含む内燃機関と、回転電機と、前記回転電機に電力を供給する蓄電装置とを備えたハイブリッド車両の制御方法であって、
前記内燃機関における低速早期着火の発生を検出するステップと、
前記低速早期着火が検出された場合には、前記低速早期着火が検出されていない場合と比べて、所定領域外に位置する前記内燃機関の動作点が前記所定領域内に移動しないように、前記内燃機関が前記過給機を用いて出力可能な最大トルクを制限するステップとを備え、
前記所定領域は、前記低速早期着火が発生しやすい低回転高負荷の領域であり、
前記制限するステップは、前記最大トルクの制限に伴い前記内燃機関の出力が不足したときには、当該出力不足分を前記蓄電装置からの供給電力により補うステップを含む、ハイブリッド車両の制御方法。
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