JP7211254B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- JP7211254B2 JP7211254B2 JP2019088878A JP2019088878A JP7211254B2 JP 7211254 B2 JP7211254 B2 JP 7211254B2 JP 2019088878 A JP2019088878 A JP 2019088878A JP 2019088878 A JP2019088878 A JP 2019088878A JP 7211254 B2 JP7211254 B2 JP 7211254B2
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Classifications
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- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
-
- 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
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
本実施形態の車両制御装置では、エンジン11のフィードバック学習値の早期学習が要求されていない場合には、まずバッテリ14の充放電制御の要求を満たすように充放電要求出力PB*を決定した後、要求駆動力TP*分の駆動力が得られるように要求エンジン出力PE*、目標エンジン回転数NE*及び目標エンジントルクTE*を決定している。すなわち、この場合には、バッテリ14の充電状態SOCが制御目標範囲内の値に保持されるように第2発電電動機13に対する同バッテリ14の充放電量を制御するとともに、同制御が行われている状態で要求駆動力TP*分の駆動力が得られるようにエンジン出力を制御することで、ハイブリッド車両10の駆動力制御が行われる。
(1)本実施形態では、早期学習が要求されると、上記早期学習要求時制御により、学習実行条件を満たす運転状態となるようにエンジン11が制御される。そのため、ハイブリッド車両10に搭載されたエンジン11のフィードバック学習値の学習完了に要する時間を、早期学習の求めに応じて短縮できる。しかも、そうした早期学習のためのエンジン11の動作点の変化に伴うエンジン出力の変化分をバッテリ14の充放電制御により吸収しているため、ハイブリッド車両10の駆動力を保持できる。
・上記実施形態では、(A)フィードバック学習値の学習完了の履歴が無い場合、(B)フィードバック補正量が乖離判定値以上となっている場合、の少なくとも一方の場合に早期学習を要求していたが、上記(A)、(B)のいずれか一方の場合のみに早期学習を要求するようにしてもよい。また、上記(A)、(B)以外の場合に早期学習を要求するようにしてもよい。
・上記実施形態では、早期学習が要求されているときには無条件で早期学習要求時制御を実行していたが、条件付で実行するようにしてもよい。例えば、ハイブリッド車両10が停車中では無いことを条件に早期学習要求時制御を実行するようにしてもよい。ハイブリッド車両10の停車中は、バッテリ14の充電や車室内の空調のためにエンジン11の運転が要求されている場合を除き、エンジン11を停止するようにしている。そのため、そうした停車中に、早期学習要求時制御のためにエンジン11の運転が行われると、同制御の実行に伴って燃費が大きく悪化する虞がある。また、ハイブリッド車両10のユーザは、停車中にはエンジン11が停止することを期待しているため、早期学習要求時制御により停車中にエンジン11が停止しない状態となると、その期待に沿えなくなる。そのため、ハイブリッド車両10の停車中は早期学習制御の実行を見合わせるようにすれば、停車中のエンジン11の稼働による燃費やドライバビリティの悪化を抑えられる。
Claims (8)
- エンジンと、バッテリが放電した電力を受けて動力を発生するとともに外部から動力を受けて発電した電力を前記バッテリに充電する発電電動機と、を走行用の駆動源として備えるハイブリッド車両に適用されて、
前記バッテリの蓄電量を既定の制御目標範囲内の値に保持すべく前記発電電動機に対する前記バッテリの充放電量を制御するとともに、当該ハイブリッド車両の走行状況に応じて設定された要求駆動力分の駆動力が前記充放電量の制御が行われている状態で得られるようにエンジン出力を制御する駆動力制御部と、
前記エンジンが既定の学習実行条件を満たす運転状態にあるときに、既定のエンジン制御量のフィードバック学習値の学習を行う学習制御部と、
を備える車両制御装置において、
前記駆動力制御部は、前記フィードバック学習値の早期学習が要求されているときには、前記学習実行条件を満たす運転状態とすべく前記エンジンを制御するとともに、同エンジンが前記学習実行条件を満たす運転状態にある状態で前記要求駆動力分の駆動力が得られる分の充放電を行うべく前記バッテリの充放電量を制御する早期学習要求時制御を行い、
前記駆動力制御部は、前記早期学習要求時制御を実行した場合と実行しなかった場合との前記エンジンの運転状態の乖離が一定の範囲内であることを条件に同早期学習要求時制御を実行する
車両制御装置。 - 前記学習実行条件は、前記エンジンが既定の範囲内の動作点で運転されている場合に成立するものであって、前記早期学習要求時制御において前記駆動力制御部は、前記既定の範囲内の特定の動作点で運転すべく前記エンジンを制御する
請求項1に記載の車両制御装置。 - 前記学習制御部は、前記フィードバック学習値の学習開始後に既定の学習完了条件が満たされたときに同フィードバック学習値の学習を完了するとともにその完了後に既定の学習再開条件が満たされたときに同フィードバック学習値の再学習を行うものであり、
かつ前記フィードバック学習値の早期学習は、前記フィードバック学習値の学習が完了した履歴が無い場合に要求される
請求項1又は請求項2に記載の車両制御装置。 - 前記フィードバック学習値の早期学習は、前記エンジン制御量のフィードバック補正量が既定値以上の場合に要求される
請求項1~請求項3のいずれか1項に記載の車両制御装置。 - 前記駆動力制御部は、前記ハイブリッド車両の停車中では無いことを条件に前記早期学習要求時制御を実行する請求項1~請求項4のいずれか1項に記載の車両制御装置。
- 前記学習制御部は、前記早期学習要求時制御の実行中の前記フィードバック学習値の学習を行っているときに車速の変化量が既定値以上となった場合には同フィードバック学習値の学習を一時停止する請求項1~請求項5のいずれか1項に記載の車両制御装置。
- 前記学習実行条件は、前記エンジンの回転数、トルク、吸入空気量、燃料の噴射方式、排気再循環の実施の有無、及び点火時期のうちのいずれか1つ以上により規定されている請求項1~請求項6のいずれか1項に記載の車両制御装置。
- 前記学習制御部は、気筒内で燃焼する混合気の空燃比を目標空燃比とするための燃料噴射量のフィードバック補正量、アイドル運転時のエンジン回転数を目標アイドル回転数とするためのスロットル開度のフィードバック補正量、ノッキングの発生状況に応じた点火時期進角量のフィードバック補正量のいずれかを前記フィードバック学習値として学習する請求項1~請求項7のいずれか1項に記載の車両制御装置。
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JP3952884B2 (ja) * | 2002-07-19 | 2007-08-01 | トヨタ自動車株式会社 | 自動車の制御装置 |
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JP5114340B2 (ja) * | 2008-08-08 | 2013-01-09 | 株式会社デンソー | エンジン停止制御装置 |
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JP6380448B2 (ja) * | 2016-04-05 | 2018-08-29 | トヨタ自動車株式会社 | ハイブリッド車両 |
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JP2000291471A (ja) | 1999-04-08 | 2000-10-17 | Toyota Motor Corp | 空燃比学習制御装置 |
JP2005269705A (ja) | 2004-03-16 | 2005-09-29 | Toyota Motor Corp | 動力出力装置およびこれを搭載する自動車並びに動力出力装置の制御方法 |
JP2009248586A (ja) | 2008-04-01 | 2009-10-29 | Fujitsu Ten Ltd | ハイブリッド制御装置 |
JP2010000836A (ja) | 2008-06-18 | 2010-01-07 | Toyota Motor Corp | 動力出力装置およびその制御方法並びに車両 |
US20160251013A1 (en) | 2015-02-26 | 2016-09-01 | Robert Bosch Gmbh | Method for carrying out an engine function in an internal combustion engine |
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