JP2022044921A - 駆動装置 - Google Patents
駆動装置 Download PDFInfo
- Publication number
- JP2022044921A JP2022044921A JP2020150311A JP2020150311A JP2022044921A JP 2022044921 A JP2022044921 A JP 2022044921A JP 2020150311 A JP2020150311 A JP 2020150311A JP 2020150311 A JP2020150311 A JP 2020150311A JP 2022044921 A JP2022044921 A JP 2022044921A
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- JP
- Japan
- Prior art keywords
- fluid coupling
- stator
- rotor
- axial direction
- drive device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000012530 fluid Substances 0.000 claims abstract description 37
- 230000008878 coupling Effects 0.000 claims abstract description 36
- 238000010168 coupling process Methods 0.000 claims abstract description 36
- 238000005859 coupling reaction Methods 0.000 claims abstract description 36
- 230000002093 peripheral effect Effects 0.000 claims description 30
- 230000000452 restraining effect Effects 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 description 18
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 239000002783 friction material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0284—Multiple disk type lock-up clutch
-
- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Arrangement Of Transmissions (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
図1に示すように、駆動装置100は、トルクコンバータ2(流体継手の一例)と、回転電機3と、角度センサ4とを備えている。駆動装置100は、エンジン(図示省略)からトランスミッションまでの動力伝達経路に配置されている。
トルクコンバータ2は、軸方向の第1側からトルクが入力され、軸方向の第2側にトルクを出力するように構成されている。なお、本実施形態では、トルクコンバータ2は、エンジンからトルクが入力され、トランスミッションへとトルクを出力するように構成されている。
カバー21は、エンジンからのトルクが入力される。カバー21は、カバー本体部21aと、筒状部21bとを有している。カバー本体部21aは、円板状の部材である。筒状部21bは、カバー本体部21aの外周端部から、軸方向の第2側に延びている。カバー本体部21aの外周部に、フレキシブルプレート(図示省略)などが固定される。
インペラ22は、カバー21に固定されている。インペラ22は、カバー21と一体的に回転する。インペラ22は、インペラシェル22aと、複数のインペラブレード22bと、インペラハブ22cと、インペラコア22dを有している。
タービン23は、インペラ22に対して軸方向に対向して配置されている。タービン23は、主に、タービンシェル23aと、複数のタービンブレード23bと、タービンハブ23cと、タービンコア23dを有している。
第2ステータ24は、タービン23からインペラ22に戻る作動油の流れを整流するための機構である。第2ステータ24は、インペラ22とタービン23との間に配置されている。第2ステータ24は、主に、ステータシェル24aと、ステータシェル24aの外周面に設けられた複数のステータブレード24bと、第2ステータコア24cとを有している。
ワンウェイクラッチ26は、第2ステータ24の内周端部に取り付けられる。第2ステータ24は、ワンウェイクラッチ26を介して、筒状の固定シャフト102に支持される。固定シャフト102はトランスミッションの入力シャフト101の外周面とインペラハブ22cの内周面との間を延びている。固定シャフト102は、回転不能に配置されている。
ロックアップクラッチ装置25は、インペラ22とタービン23との間でトルクを伝達及び遮断するように構成されている。本実施形態では、ロックアップクラッチ装置25は、カバー21を介して、インペラ22とタービン23との間でトルクを伝達及び遮断している。
ピストンプレート25aは、タービンハブ23cに相対回転可能且つ軸方向移動可能に支持されている。ピストンプレート25aは、カバー21側に移動することによって、カバー21と摩擦係合して一体的に回転する。
ダンパ装置25bは、複数の弾性部材25dと、ドリブンプレート25eと、を有している。ドリブンプレート25eは、タービンシェル23aに固定されている。
回転電機3は、駆動輪を回転駆動するためのモータとしての機能を有している。また、回転電機3は、発電機としての機能も有している。例えば、回転電機3は、減速時に発電機として機能する。
第1ステータ31は、回転不能に配置されている。具体的には、第1ステータ31は、ハウジング103に取り付けられている。第1ステータ31は、ハウジング103に直接取り付けられていてもよいし、間接的に取り付けられていてもよい。
ロータ32は、回転軸Oを中心に回転するように構成されている。ロータ32は、トルクコンバータ2の外殻(インペラシェル22a)に取り付けられている。詳細には、ロータ32は、インペラシェル22aの取付面22eに取り付けられている。すなわち、ロータ32は、トルクコンバータ2のトーラスの中心Cに対して径方向内側でトルクコンバータ2に取り付けられている。ロータ32は、第2ステータ24の外周面よりも径方向内側で、トルクコンバータ2に取り付けられている。ロータ32は、A部分においてインペラシェル22aと接触することによっても、径方向の位置決めがされている。なお、ロータ32は、A部分において、インペラシェル22aに固定されていない。
界磁コイル33は、ロータ32の径方向内側に配置されている。界磁コイル33は、円筒状である。界磁コイル33の外周面は、ロータ32の内周面と間隔をあけて対向している。界磁コイル33は、回転不能に配置されている。例えば、界磁コイル33は、第1ステータ31と同様に、ハウジング103に取り付けられている。
角度センサ4は、回転電機3のロータ32の回転速度を検出するように構成されている。詳細には、角度センサ4は、ロータ32と一体的に回転するトルクコンバータ2の外殻の回転速度を検出するように構成されている。
以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。
上記実施形態では、回転電機3は、第1ステータ31、ロータ32、及び界磁コイル33によって構成されているが、回転電機3の構成はこれに限定されない。例えば、回転電機3は、第1ステータ31、及びロータ32から構成されていてもよい。すなわち、回転電機3は、界磁コイル33を有していなくてもよい。この場合、ロータ32は、例えば、永久磁石によって形成されている。
ロータ32は、トルクコンバータ2のトーラスの中心Cに対して径方向外側でトルクコンバータ2に取り付けられていてもよい。ロータ32は、トルクコンバータ2の第2ステータ24の外周面に対して径方向外側で、トルクコンバータ2に取り付けられていてもよい。
角度センサ4は、径方向視において、トーラスと重複するように配置されていてもよい。
上記実施形態では、第1ステータ31の第1コイルエンド31bは第1ステータコア31aから軸方向の第1側に突出していたが、第1コイルエンド31bの構成はこれに限定されない。例えば、第1コイルエンド31bは第1ステータコア31aから軸方向の第2側に突出しており、第2コイルエンド31cは第1ステータコア31aから軸方向の第1側に突出していてもよい。
上記実施形態における第1コイルエンド31bは、径方向外側に向かって折り曲げられているが、第1コイルエンド31bの構成はこれに限定されない。例えば、第1コイルエンド31bは、径方向に折り曲げられていなくてもよい。
上記実施形態では、回転電機3はインナーロータ型であったが、回転電機3はアウターロータ型であってもよい。
上記実施形態では、インペラシェル22aとカバー21とによってトルクコンバータ2の外殻を構成しているが、トルクコンバータ2の構成はこれに限定されない。例えば、カバー21とタービンシェル23aによってトルクコンバータ2の外殻を構成してもよい。この場合、インペラ22とタービン23との配置が上記実施形態の配置と逆になる。すなわち、インペラ22が、トルクコンバータ2の外殻内に配置される。そして、エンジンからのトルクは、外殻を貫通して内部へと延びる伝達シャフトによって、インペラ22へと伝達される。
上記実施形態では、ロックアップクラッチ装置25のクラッチ部は、摩擦材25cによって構成されているが、これに限定されない。例えば、図2に示すように、ロックアップクラッチ装置25のクラッチ部は、多板クラッチ25fによって構成されていてもよい。
22e 取付面
23 タービン
24 第2ステータ
26 ワンウェイクラッチ
3 回転電機
31 第1ステータ
32 ロータ
33 界磁コイル
32c 支持部材
4 角度センサ
Claims (8)
- 軸方向の第1側からトルクが入力され、軸方向の第2側にトルクを出力するように構成される流体継手と、
回転不能に配置される第1ステータ、及び前記流体継手の回転軸を中心に回転するように配置されるロータ、を有する回転電機と、
を備え、
前記回転電機は、前記流体継手に対して軸方向の第2側に配置され、軸方向視において前記流体継手と重複する、
駆動装置。
- 前記回転電機は、界磁コイルを有する、
請求項1に記載の駆動装置。
- 前記回転電機は、軸方向において前記流体継手のトーラスと隣り合うように配置される、
請求項1又は2に記載の駆動装置。
- 前記ロータは、前記流体継手の外殻に取り付けられる、
請求項1から3のいずれかに記載の駆動装置。
- 前記ロータは、前記流体継手のトーラスの中心に対して径方向内側で、前記流体継手の外殻に取り付けられる、
請求項1から4のいずれかに記載の駆動装置。
- 前記ロータは、前記流体継手のトーラスの中心に対して径方向外側で、前記流体継手の外殻に取り付けられる、
請求項1から4のいずれかに記載の駆動装置。
- 前記流体継手は、第2ステータと、前記第2ステータの内周端部に取り付けられるワンウェイクラッチと、を有し、
前記ワンウェイクラッチは、前記流体継手のトーラスの中心に対して、軸方向の第2側に配置される、
請求項1から6のいずれかに記載の駆動装置。
- 前記流体継手の外殻は、径方向外側を向く取付面を有し、
前記駆動装置は、前記取付面上に内周面が取り付けられる環状の抑制部材をさらに備える、
請求項1から7のいずれかに記載の駆動装置。
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