JP7120452B2 - ハイブリッド駆動装置 - Google Patents
ハイブリッド駆動装置 Download PDFInfo
- Publication number
- JP7120452B2 JP7120452B2 JP2021511960A JP2021511960A JP7120452B2 JP 7120452 B2 JP7120452 B2 JP 7120452B2 JP 2021511960 A JP2021511960 A JP 2021511960A JP 2021511960 A JP2021511960 A JP 2021511960A JP 7120452 B2 JP7120452 B2 JP 7120452B2
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- change
- engine
- torque
- driving force
- motor
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Images
Classifications
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
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- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
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- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H2059/147—Transmission input torque, e.g. measured or estimated engine torque
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1296—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is an electric machine forming part of the transmission
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2043—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with five engaging means
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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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- 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
- Y02T10/64—Electric machine technologies in electromobility
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Electric Propulsion And Braking For Vehicles (AREA)
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Description
エンジンに駆動連結される入力部材と、車輪に駆動連結される出力部材と、を有し、前記入力部材と前記出力部材との変速比を変更する変速制御を実行する変速機構と、
前記変速機構に駆動連結される回転電機と、
前記変速機構の変速制御中に、前記変速機構に作用させる駆動力を変更する変更時機及び変更量を演算し、前記回転電機によって前記変更量の駆動力の変更が可能である場合に、前記回転電機の駆動力が前記変更量で変更されるように前記回転電機を制御し、かつ前記回転電機によって前記変更量の駆動力の変更が不能である場合に、前記エンジンに駆動力を変更するエンジン指令信号を出力する制御部と、を備え、
前記制御部は、
前記回転電機によって前記変更量の駆動力の変更が可能である場合、前記変速制御における回転変化が生じるイナーシャ相の開始時である変更時機に前記回転電機の駆動力の変更を開始し、
前記回転電機によって前記変更量の駆動力の変更が不能である場合、前記イナーシャ相の開始前であり前記変更時機よりも前の変更前時機に前記エンジンに前記エンジン指令信号を出力する。
図1に示すように、ハイブリッド駆動装置1は、例えばFR(フロントエンジン・リヤドライブ)タイプの車両に用いて好適であり、駆動源としてのエンジン2に入力軸1Aが駆動連結されている。また、ハイブリッド駆動装置1は、ケース6の内部に、ステータ3a及びロータ3bを有する、駆動源としての回転電機(モータ・ジェネレータ)MGと、エンジン2及びモータMGと車輪9との間の動力伝達経路上に設けられる変速機構5と、変速機構5を油圧制御する油圧制御装置(V/B)40と、動力伝達経路上のエンジン2とモータ・ジェネレータ(以下、単にモータという)MGとの間に配置され、エンジン2を切離すことが可能なエンジン切離しクラッチとしてのクラッチK0と、動力伝達経路上のモータMGと変速機構5との間に配置され、エンジン2及びモータMG(つまり駆動源)と変速機構5との動力伝達を接断可能であって、特に車両の発進時に係合される発進クラッチ(発進用摩擦係合要素、駆動伝達クラッチ)WSCと、第1制御部としてのトランスミッション制御部(以下、「TCU」という)31と、を備えている。
ついで、変速機構5について、図2及び図3を用いて説明する。変速機構5には、入力部材としての入力軸12(及び中間軸13)上において、プラネタリギヤDPと、プラネタリギヤユニットPUとが備えられている。プラネタリギヤDPは、サンギヤS1、キャリヤCR1、及びリングギヤR1を備えており、該キャリヤCR1に、サンギヤS1に噛合するピニオンP1及びリングギヤR1に噛合するピニオンP2を互いに噛合する形で有している所謂ダブルピニオンプラネタリギヤである。
ついで、変速制御中におけるモータMG及びエンジン2のトルク変更制御について図4乃至図6を用いて説明する。なお、トルク変更制御とは、変速機構5の変速制御中にあって、TCU31がアクセル開度等に基づき決定したエンジン2が出力する駆動力とモータMGが出力する駆動力とに対し、TCU31がトルクリダクション又はトルクインクリースによって出力トルクを変更する制御のことである。
ついで、トルク変更制御の一例として、前進2速段から前進3速段へのパワーオンアップシフト変速の変速制御中にモータMGによってトルクリダクションを実行した場合について図6を用いて説明する。
続いて、トルク変更制御の一例として、前進2速段から前進3速段へのパワーオンアップシフト変速の変速制御中に、モータMGがモータ状態(例えばバッテリ50がフル充電状態であって回生できない状態)により使用できず、エンジン2によってトルクリダクションを実行した場合について図5を用いて説明する。
本ハイブリッド駆動装置(1)は、
エンジン(2)に駆動連結される入力部材(12)と、車輪(9)に駆動連結される出力部材(15)と、を有し、前記入力部材(12)と前記出力部材(15)との変速比を変更する変速制御を実行する変速機構(5)と、
前記変速機構(5)に駆動連結される回転電機(MG)と、
前記変速機構(5)の変速制御中に、前記変速機構(5)に作用させる駆動力を変更する変更時機及び変更量を演算し、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能である場合に、前記回転電機(MG)の駆動力が前記変更量(deTr)で変更されるように前記回転電機(MG)を制御し、かつ前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が不能である場合に、前記エンジン(2)に駆動力を変更するエンジン指令信号(Tesig1)を出力する制御部(31)と、を備え、
前記制御部(31)は、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が不能である場合、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能である場合に前記回転電機(MG)の駆動力を変更する変更時機(t15)よりも前の変更前時機(t14)に前記エンジン(2)に前記エンジン指令信号(Tesig1)を出力する。
前記制御部(31)は、
前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能である場合に、前記回転電機(MG)の駆動力が前記変更量(deTr)で変更されるように、前記変更時機(t15)に前記回転電機(MG)に駆動力を変更する回転電機指令信号(Tmgsig1)を出力し、
前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が不能である場合、前記回転電機指令信号(Tmgsig1)を出力する前記変更時機(t15)よりも前の前記変更前時機(t14)に前記エンジン(2)に前記エンジン指令信号(Tesig1)を出力する。
前記制御部は、第1制御部(31)であり、
前記回転電機指令信号は、第1回転電機指令信号(Tmgsig1)であり、
前記エンジン指令信号は、第1エンジン指令信号(Tesig1)であり、
前記第1制御部(31)は、前記回転電機(MG)の駆動を制御する回転電機駆動信号(MGcd)を出力する第2制御部(70)に第2回転電機指令信号(Tmgsig2)を出力し、かつ前記エンジン(2)の駆動を制御するエンジン駆動信号(EGcd)を出力する第3制御部(80)に第2エンジン指令信号(Tesig2)を出力する第4制御部(60)に対して、前記第1回転電機指令信号(Tmgsig1)と前記第1エンジン指令信号(Tesig1)とを出力可能であり、
前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が不能である場合、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能である場合に前記第2制御部(70)から前記回転電機(MG)に駆動力を変更する回転電機駆動信号(MGcd)が出力される出力時機よりも前の出力前時機に前記第3制御部(80)から前記エンジン(2)に駆動力を変更するエンジン駆動信号(EGcd)が出力される。
前記変更前時機(t14)は、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能である場合に前記回転電機(MG)の駆動力を変更する変更時機(t14)よりも、前記エンジン(2)が駆動力の変更に必要な時間(TA)の分、前である。
前記制御部(31)は、前記変速機構(5)の変速制御中に、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が可能であるか否かを随時演算し、前記変更前時機(t14)に、前記回転電機(MG)によって前記変更量(deTr)の駆動力の変更が不能であることを判断する。
前記制御部は、前記エンジンが駆動力の変更を行う場合の種類を判断し、前記種類によって前記変更前時機(t14)を異ならせる。
前記変速機構(5)は、歯車機構(DP、PU)と、前記歯車機構(DP、PU)の伝達経路を変更する複数の摩擦係合要素(C1,C2,C3,B1,B2)と、を有し、前記複数の摩擦係合要素(C1,C2,C3,B1,B2)のうちの少なくとも2つを掴み換えることで前記変速制御を実行し、
前記変更時機(t15)は、前記変速制御における回転変化が生じるイナーシャ相の開始時であり、
前記変更前時機(t14)は、前記イナーシャ相の開始前である。
なお、以上説明した本実施の形態においては、ハイブリッド駆動装置として、エンジン2とモータMGとの駆動回転を変速機構5で変速する、いわゆるパラレル式のハイブリッド駆動装置1を一例に説明したが、これに限らず、エンジンの駆動回転を入力回転として変速を行う変速機構とモータにより変速機構に作用させるトルクのトルク変更が可能なハイブリッド駆動装置であれば、どのようなハイブリッド駆動装置であってもよい。例えばモータは変速機構の出力軸に駆動連結されているような構成であっても構わず、特にモータを2つ以上備えているような構成であってエンジンとモータとの出力回転を変速し、他のモータで変速機構の出力軸のトルク変更を行うような構成でも構わない。
2…エンジン
5…変速機構
9…車輪
12…入力部材(入力軸)
15…出力部材(出力軸)
31…制御部、第1制御部(TCU)
60…第4制御部(HV-ECU)
70…第2制御部(MCU)
80…第3制御部(ECU)
MG…回転電機(モータ)
TA…必要な時間
t14…変更前時機
t15…変更時機
deTr…変更量(入力トルク変更量)
DP…歯車機構(プラネタリギヤ)
PU…歯車機構(プラネタリギヤユニット)
C1…摩擦係合要素(第1クラッチ)
C2…摩擦係合要素(第2クラッチ)
C3…摩擦係合要素(第3クラッチ)
B1…摩擦係合要素(第1ブレーキ)
B2…摩擦係合要素(第2ブレーキ)
EGcd…エンジン駆動信号(エンジンコマンド信号)
MGcd…回転電機駆動信号(モータコマンド信号)
Tesig1…エンジン指令信号、第1エンジン指令信号(エンジントルク信号)
Tesig2…第2エンジン指令信号(エンジントルク信号)
Tmgsig1…回転電機指令信号、第1回転電機指令信号(モータトルク信号)
Tmgsig2…第2回転電機指令信号(モータトルク信号)
Claims (7)
- エンジンに駆動連結される入力部材と、車輪に駆動連結される出力部材と、を有し、前記入力部材と前記出力部材との変速比を変更する変速制御を実行する変速機構と、
前記変速機構に駆動連結される回転電機と、
前記変速機構の変速制御中に、前記変速機構に作用させる駆動力を変更する変更時機及び変更量を演算し、前記回転電機によって前記変更量の駆動力の変更が可能である場合に、前記回転電機の駆動力が前記変更量で変更されるように前記回転電機を制御し、かつ前記回転電機によって前記変更量の駆動力の変更が不能である場合に、前記エンジンに駆動力を変更するエンジン指令信号を出力する制御部と、を備え、
前記制御部は、
前記回転電機によって前記変更量の駆動力の変更が可能である場合、前記変速制御における回転変化が生じるイナーシャ相の開始時である変更時機に前記回転電機の駆動力の変更を開始し、
前記回転電機によって前記変更量の駆動力の変更が不能である場合、前記イナーシャ相の開始前であり前記変更時機よりも前の変更前時機に前記エンジンに前記エンジン指令信号を出力する、
ハイブリッド駆動装置。 - 前記制御部は、
前記回転電機によって前記変更量の駆動力の変更が可能である場合に、前記回転電機の駆動力が前記変更量で変更されるように、前記変更時機に前記回転電機に駆動力を変更する回転電機指令信号を出力し、
前記回転電機によって前記変更量の駆動力の変更が不能である場合、前記回転電機指令信号を出力する前記変更時機よりも前の前記変更前時機に前記エンジンに前記エンジン指令信号を出力する、
請求項1に記載のハイブリッド駆動装置。 - 前記制御部は、第1制御部であり、
前記回転電機指令信号は、第1回転電機指令信号であり、
前記エンジン指令信号は、第1エンジン指令信号であり、
前記第1制御部は、前記回転電機の駆動を制御する回転電機駆動信号を出力する第2制御部に第2回転電機指令信号を出力し、かつ前記エンジンの駆動を制御するエンジン駆動信号を出力する第3制御部に第2エンジン指令信号を出力する第4制御部に対して、前記第1回転電機指令信号と前記第1エンジン指令信号とを出力可能であり、
前記回転電機によって前記変更量の駆動力の変更が不能である場合、前記回転電機によって前記変更量の駆動力の変更が可能である場合に前記第2制御部から前記回転電機に駆動力を変更する回転電機駆動信号が出力される出力時機よりも前の出力前時機に前記第3制御部から前記エンジンに駆動力を変更するエンジン駆動信号が出力される、
請求項2に記載のハイブリッド駆動装置。 - 前記変更前時機は、前記回転電機によって前記変更量の駆動力の変更が可能である場合に前記回転電機の駆動力を変更する変更時機よりも、前記エンジンが駆動力の変更に必要な時間の分、前である、
請求項1ないし3のいずれか1項に記載のハイブリッド駆動装置。 - 前記制御部は、前記変速機構の変速制御中に、前記回転電機によって前記変更量の駆動力の変更が可能であるか否かを随時演算し、前記変更前時機に、前記回転電機によって前記変更量の駆動力の変更が不能であることを判断する、
請求項1ないし4のいずれか1項に記載のハイブリッド駆動装置。 - 前記制御部は、前記エンジンが駆動力の変更を行う場合の種類を判断し、前記種類によって前記変更前時機を異ならせる、
請求項1ないし5のいずれか1項に記載のハイブリッド駆動装置。 - 前記変速機構は、歯車機構と、前記歯車機構の伝達経路を変更する複数の摩擦係合要素と、を有し、前記複数の摩擦係合要素のうちの少なくとも2つを掴み換えることで前記変速制御を実行する、
請求項1ないし6のいずれか1項に記載のハイブリッド駆動装置。
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