JP2015131513A - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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- 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
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- B60K6/38—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
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- 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 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 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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- B60K6/00—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
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- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
- F16H3/727—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with at least two dynamo electric machines for creating an electric power path inside the gearing, e.g. using generator and motor for a variable power torque path
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
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- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
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- F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
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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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Abstract
【解決手段】エンジン2と、回転機MG2と、エンジンと駆動輪との動力の伝達経路11と、伝達経路に接続された第一係合要素32と、回転機に接続された第二係合要素33とを有し、第一係合要素と第二係合要素とを任意に係合あるいは解放させるクラッチCL1と、走行中にクラッチを解放し、かつ第二係合要素の回転数が第一係合要素の回転数よりも低い状態で回転機を回転させて待機するアイドリングモードと、アイドリングモードを実行する制御部40と、を備える。
【選択図】図3
Description
図1から図12を参照して、実施形態について説明する。本実施形態は、車両制御装置に関する。図1は、本発明の実施形態に係る車両制御装置の移行判断を示すフローチャート、図2は、実施形態に係る車両制御装置の復帰判断を示すフローチャート、図3は、実施形態に係る車両の概略構成図、図4は、実施形態に係る車両のスケルトン図、図5は、実施形態に係る車両制御装置のブロック図、図6は、実施形態に係る走行状態の一例を示す共線図、図7は、実施形態に係る他の走行状態を示す共線図、図8は、実施形態に係るさらに他の走行状態を示す共線図、図9は、実施形態の作動係合表を示す図、図10は、休止モードの回転状態を説明する図、図11は、目標回転数の説明図、図12は、実施形態の制御に係るタイムチャートである。
HV_ECU50のモード判定部50bは、算出された要求駆動力や車速等に基づいて、HV走行モードあるいはEV走行モードを選択する。HV走行モードは、少なくともエンジン2を動力源として車両1を走行させる走行モードである。HV走行モードにおいて、第一回転機MG1は、エンジントルクに対する反力受けとして機能することができる。第一回転機MG1は、例えば、図6に示すように、エンジントルクTeに対する反力トルクTm1を発生させて、エンジン2の動力をリングギヤR1から出力させる。リングギヤR1から出力されるエンジン2の動力は、出力軸20から駆動輪25に向けて伝達される。
EV走行モードは、第二回転機MG2を動力源として車両1を走行させる走行モードである。EV走行モードで車両1を前進走行させる場合、第一クラッチCL1は、例えば、解放状態とされる。HV_ECU50は、第二回転機MG2に正回転方向のトルクを出力させ、正回転させる。これにより、第二クラッチCL2が係合し、第二回転機MG2によって出力される正トルクが車両1を前進駆動する。HV_ECU50は、EV走行モードにおいて、第一回転機MG1を力行も回生も行わないフリーの状態とする。これにより、EV走行モードでは、エンジン2が回転を停止し、第一回転機MG1が空転する。
休止モードは、第一クラッチCL1を解放状態とし、かつ第二回転機MG2を停止してエンジン2を動力源として走行する走行モードである。休止モードは、HV走行モードの一形態と考えることもできる。図10において、破線で示す回転要素は、休止モードで回転を停止する。すなわち、第二回転機MG2のロータRt2および第二ドグ歯33は、休止モードで回転を停止する。一方、回転軸Shおよび第一ドグ歯32は、休止モードであっても走行中は回転し続ける。
アイドリングモードは、走行中に第一クラッチCL1を解放し、かつ第二ドグ歯33の回転数が第一ドグ歯32の回転数よりも低い状態で第二回転機MG2を回転させて待機する走行モードである。本実施形態では、例えば、図11を参照して説明するようにMG2回転数Nm2が制御される。
復帰モードは、休止モードあるいはアイドリングモードから復帰するモードである。復帰モードは、MG2回転数Nm2を上昇させてシャフト回転数Nsに同期させ、第二回転機MG2から伝達経路11に動力を伝達可能な状態とするモードである。MG2回転数Nm2がシャフト回転数Nsに同期すると、第二クラッチCL2が係合する。これにより、第二回転機MG2を動力源とする走行モードが実行可能となる。例えば、エンジン2および第二回転機MG2を動力源とするHV走行モードが実行可能である。なお、MG2回転数Nm2がシャフト回転数Nsと同期した状態で、第一クラッチCL1が係合されてもよい。第一クラッチCL1が係合されることで、第二回転機MG2に回生を行わせることも可能となる。
実施形態の第1変形例について説明する。上記実施形態の車両制御装置100を適用可能な車両1は、上記実施形態で例示したものには限定されない。例えば、第1変形例の車両1に対しても車両制御装置100を適用可能である。図13は、実施形態の第1変形例に係る車両のスケルトン図である。
実施形態の第2変形例について説明する。図14は、実施形態の第2変形例に係る車両のスケルトン図である。上記実施形態のトランスアクスル(図4)は、エンジン2の出力軸2aと第二回転機MG2の回転軸Shとが異なる軸上にある複軸式であった。第2変形例のトランスアクスルは、エンジン2と第二回転機MG2とが同軸上にある単軸式である点で上記実施形態と異なる。
実施形態の第3変形例について説明する。図15は、実施形態の第3変形例に係る車両の概略構成図、図16は、実施形態の第3変形例に係る車両のスケルトン図である。本変形例において、上記実施形態と異なる点は、パラレルハイブリッドとシリーズハイブリッドの切り替えが可能な点である。
実施形態の第4変形例について説明する。上記実施形態および各変形例において、第二クラッチCL2が省略されてもよい。図18は、実施形態の第4変形例に係る車両のスケルトン図である。図18に示す車両1は、上記実施形態に係る車両1(図4)において、第二クラッチCL2を省略したものである。
(1)第二回転機MG2を動力源として車両1を走行させる場合、第一クラッチCL1を係合する必要がある。
(2)第一クラッチCL1が解放していると、MG2回転数Nm2をシャフト回転数Nsよりも低い回転数とすることができるだけでなく、シャフト回転数Nsよりも高い回転数とすることも可能である。
(3)休止モードやアイドリングモードから復帰する場合、単にMG2回転数Nm2をシャフト回転数Nsに同期させるだけでなく、第一クラッチCL1を係合する必要がある。
実施形態の第5変形例について説明する。図19は、実施形態の第5変形例に係るアイドリングモードの説明図である。上記実施形態では、シャフト回転数NsとMG2回転数Nm2との差回転数ΔNが所定の回転数N1に維持されるように、MG2回転数Nm2が制御された。図19に一点鎖線で示す基準回転数Nofは、上記実施形態におけるMG2回転数Nm2の目標値、言い換えると、シャフト回転数Nsとの差回転数ΔNが所定の回転数N1である回転数である。シャフト回転数Nsと基準回転数Nofとは平行であり、同じ車速に関して、シャフト回転数Nsの値は、基準回転数Nofの値よりも所定の回転数N1だけ大きい。
0≦ΔNm≦ΔNmax…(1)
実施形態の第6変形例について説明する。第一クラッチCL1は、例示した噛み合い式のクラッチに限定されるものではなく、摩擦式のクラッチ等であってもよい。第一クラッチCL1は、例えば、湿式や乾式の多板クラッチ等であってもよい。第二クラッチCL2は、スプラグ式のワンウェイクラッチに限定されるものではなく、他の方式のワンウェイクラッチであってもよい。すなわち、第二クラッチCL2は、一方の係合要素から他方の係合要素への一方向のトルクを伝達し、他方向のトルクの伝達を遮断する機能を有するものであればよい。
2 エンジン
10 遊星歯車機構
11 伝達経路
25 駆動輪
32 第一ドグ歯(第一係合要素)
33 第二ドグ歯(第二係合要素)
40 制御部
50 HV_ECU
50a 駆動力算出部
50b モード判定部
50c 遮断モード指示部
60 MG_ECU
70 エンジンECU
100 車両制御装置
CL1 第一クラッチ(クラッチ)
CL2 第二クラッチ
MG1 第一回転機
MG2 第二回転機(回転機)
N1 所定の回転数
Nm2 MG2回転数
Ns シャフト回転数
ΔN 差回転数
Claims (6)
- エンジンと、
回転機と、
前記エンジンと駆動輪との動力の伝達経路と、
前記伝達経路に接続された第一係合要素と、前記回転機に接続された第二係合要素とを有し、前記第一係合要素と前記第二係合要素とを任意に係合あるいは解放させるクラッチと、
走行中に前記クラッチを解放し、かつ前記第二係合要素の回転数が前記第一係合要素の回転数よりも低い状態で前記回転機を回転させて待機するアイドリングモードと、
前記アイドリングモードを実行する制御部と、
を備えることを特徴とする車両制御装置。 - 前記制御部は、前記アイドリングモードにおいて、前記第一係合要素の回転数に応じて前記回転機の回転数を制御する
請求項1に記載の車両制御装置。 - 前記制御部は、前記第一係合要素の回転数が、所定の回転数よりも低い回転数である場合、前記回転機を停止する
請求項2に記載の車両制御装置。 - 前記制御部は、前記アイドリングモードにおいて前記回転機を制御し、前記第一係合要素の回転数と前記第二係合要素の回転数との差回転数を所定の回転数とする
請求項1に記載の車両制御装置。 - 前記制御部は、前記第一係合要素の回転数が、前記所定の回転数よりも低い回転数である場合、前記回転機を停止する
請求項4に記載の車両制御装置。 - 更に、前記クラッチと並列に配置され、かつ前記アイドリングモードにおいて解放するワンウェイクラッチを備える
請求項1から5のいずれか1項に記載の車両制御装置。
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PCT/IB2015/000002 WO2015104626A1 (en) | 2014-01-09 | 2015-01-05 | Controller, control method and control system for a vehicle |
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JP2017047813A (ja) * | 2015-09-03 | 2017-03-09 | トヨタ自動車株式会社 | 車両の制御装置 |
WO2019111458A1 (ja) * | 2017-12-04 | 2019-06-13 | 三菱自動車工業株式会社 | 車両の制御装置 |
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