JP5609910B2 - 車載動力伝達装置 - Google Patents
車載動力伝達装置 Download PDFInfo
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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 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
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- 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
- B60K6/48—Parallel type
- B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
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Description
以下、本発明にかかる動力伝達装置を車載主機として内燃機関のみを備える車両に適用した第1の実施形態について、図面を参照しつつ説明する。
以下、第2の実施形態について、先の第1の実施形態との相違点を中心に図面を参照しつつ説明する。
なお、上記各実施形態は、以下のように変更して実施してもよい。
Ts=−ρTc/(1+ρ) …(eq2)
この関係によれば、回生制御処理が行われる状況下において、車両の走行状態に応じてキャリアCへの入力トルクが定まることで、サンギアS及びリングギアRの出力トルクが定まることとなる。なお、キャリアCの回転速度Nc、サンギアSの回転速度Ns及びリングギアRの回転速度Nrのそれぞれについては、下式(eq3)で表される関係を満たすことが要求される。
Nr=(1+ρ)×Nc−ρ×Ns …(eq3)
また、駆動輪18から遊星歯車機構32及び入力軸34aを介してフライホイール50に供給される車両の運動エネルギは、フライホイール50の回転速度とフライホイール50への入力トルク(サンギアSの出力トルクを増速歯車機構48の増速比で除算したトルク)との積に比例する。この比例関係と、車両の走行状態に応じてサンギアS、キャリアC及びリングギアRの印加トルクが定まることとによれば、フライホイール50の回転速度が高くなるほど、トルク調節装置36及びフライホイール50のうちフライホイール50側に供給される車両の運動エネルギが増大することとなる。このため、フライホイール50の回転速度を規定速度よりも高い状態に極力維持することで、回生制御処理が行われる場合にフライホイール50に回収可能な車両の運動エネルギが増大する。
Claims (12)
- 車載主機(10)が備えられる車両に適用される動力伝達装置であって、
入力軸(34a)を介して入力されるエネルギを蓄積可能なエネルギ蓄積手段(34,50,28,46)、自身に作用するトルクを調節可能なトルク調節手段(36)及び駆動輪(18)の間の動力伝達を可能とすべく、前記入力軸、前記駆動輪及び前記トルク調節手段のそれぞれに連結される第1の回転体(S)、第2の回転体(C)及び第3の回転体(R)を有する遊星歯車機構(32)と、
前記入力軸から前記第1の回転体へのトルク伝達を遮断する遮断部材(42,88)と、
前記車載主機の動力生成指示がなされない状況下において、前記遊星歯車機構及び前記入力軸を介して前記車両の運動エネルギを前記エネルギ蓄積手段に蓄える回生制御処理を行う回生処理手段と、
前記回生制御処理が行われていない状況下において、前記第1の回転体及び前記入力軸の回転速度差を小さくすべく、前記トルク調節手段のトルクを調節する速度差調節手段とを備えることを特徴とする車載動力伝達装置。 - 前記遮断部材は、前記入力軸と前記第1の回転体とを連結してかつ、前記入力軸の回転速度に対する前記第1の回転体の相対回転速度が負でない場合にのみ該第1の回転体から前記入力軸へとトルクを伝達させる一方向伝達機構(42)であり、
前記速度差調節手段は、前記相対回転速度が負となる状況下において前記トルク調節手段のトルクを調節することを特徴とする請求項1記載の車載動力伝達装置。 - 前記速度差調節手段は、前記遊星歯車機構に生じる機械損失及び前記遮断部材の入出力間の回転速度差に起因して該遮断部材に生じる機械損失の合計値に基づき前記第1の回転体の回転速度の目標値を設定する目標値設定手段を備え、前記第1の回転体の回転速度を前記目標値に制御すべく前記トルク調節手段のトルクを調節することを特徴とする請求項2記載の車載動力伝達装置。
- 前記遮断部材は、前記第1の回転体及び前記入力軸の間のトルクを伝達状態又は遮断状態とすべく通電操作されるクラッチ(88)であり、
前記車両の制動指示がなされると予測する又は該制動指示がなされていると判断する制動判断手段を更に備え、
前記速度差調節手段は、前記制動判断手段によって前記制動指示がなされると予測された場合又は該制動指示がなされていると判断された場合に前記トルク調節手段のトルクを調節することを特徴とする請求項1記載の車載動力伝達装置。 - 前記エネルギ蓄積手段は、前記入力軸を介して入力されるエネルギを回転エネルギのまま蓄えるフライホイール(50)であることを特徴とする請求項1〜4のいずれか1項に記載の車載動力伝達装置。
- 前記エネルギ蓄積手段は、前記入力軸を介して入力されるエネルギを電気エネルギに変換する発電機(46)と、該発電機によって変換された電気エネルギを蓄える蓄電池(28)とを備えることを特徴とする請求項1〜5のいずれか1項に記載の車載動力伝達装置。
- 入力軸(34a)を介して入力されるエネルギを蓄積可能なエネルギ蓄積手段(34,50,28,46)、自身に作用するトルクを調節可能なトルク調節手段(36)及び駆動輪(18)の間の動力伝達を可能とすべく、前記入力軸、前記駆動輪及び前記トルク調節手段のそれぞれに連結される第1の回転体(S)、第2の回転体(C)及び第3の回転体(R)を有する遊星歯車機構(32)と、
前記入力軸から前記第1の回転体へのトルク伝達を遮断する遮断部材(42,88)とを備え、
前記エネルギ蓄積手段は、前記入力軸を介して入力されるエネルギを電気エネルギに変換する発電機(46)と、該発電機によって変換された電気エネルギを蓄える蓄電池(28)とを備えることを特徴とする車載動力伝達装置。 - 前記トルク調節手段は、湿式クラッチ機構(35)を有する電子制御式のブレーキであることを特徴とする請求項1〜7のいずれか1項に記載の車載動力伝達装置。
- 入力軸(34a)を介して入力されるエネルギを蓄積可能なエネルギ蓄積手段(34,50,28,46)、自身に作用するトルクを調節可能なトルク調節手段(36)及び駆動輪(18)の間の動力伝達を可能とすべく、前記入力軸、前記駆動輪及び前記トルク調節手段のそれぞれに連結される第1の回転体(S)、第2の回転体(C)及び第3の回転体(R)を有する遊星歯車機構(32)と、
前記入力軸から前記第1の回転体へのトルク伝達を遮断する遮断部材(42,88)とを備え、
前記トルク調節手段は、湿式クラッチ機構(35)を有する電子制御式のブレーキであることを特徴とする車載動力伝達装置。 - 前記第1の回転体は、サンギアであり、
前記第2の回転体は、キャリアであり、
前記第3の回転体は、リングギアであり、
自身の中心軸線方向に沿って貫通孔が形成された円筒状の支持部材(60)と、
前記サンギアの中心軸線と同軸上に配置されてかつ該サンギアに連結されたサンギア軸(40)と、
前記リングギアの中心軸線と同軸上に配置されてかつ該リングギアに連結されたリングギア軸(44)と、
前記支持部材の内周に固定された内周側軸受(62)と、
前記支持部材の外周に固定された外周側軸受(66)とを更に備え、
前記サンギア軸は、前記内周側軸受に支持され、
前記リングギア軸は、前記外周側軸受に支持されていることを特徴とする請求項1〜9のいずれか1項に記載の車載動力伝達装置。 - 入力軸(34a)を介して入力されるエネルギを蓄積可能なエネルギ蓄積手段(34,50,28,46)、自身に作用するトルクを調節可能なトルク調節手段(36)及び駆動輪(18)の間の動力伝達を可能とすべく、前記入力軸、前記駆動輪及び前記トルク調節手段のそれぞれに連結されるサンギア(S)、キャリア(C)及びリングギア(R)を有する遊星歯車機構(32)と、
前記入力軸から前記サンギアへのトルク伝達を遮断する遮断部材(42,88)と、
自身の中心軸線方向に沿って貫通孔が形成された円筒状の支持部材(60)と、
前記サンギアの中心軸線と同軸上に配置されてかつ該サンギアに連結されたサンギア軸(40)と、
前記リングギアの中心軸線と同軸上に配置されてかつ該リングギアに連結されたリングギア軸(44)と、
前記支持部材の内周に固定された内周側軸受(62)と、
前記支持部材の外周に固定された外周側軸受(66)とを備え、
前記サンギア軸は、前記内周側軸受に支持され、
前記リングギア軸は、前記外周側軸受に支持されていることを特徴とする車載動力伝達装置。 - 前記遮断部材は、前記入力軸と前記サンギア軸とを連結してかつ、前記入力軸の回転速度に対する前記サンギア軸の相対回転速度が負でない場合にのみ該サンギア軸から前記入力軸へとトルクを伝達させる一方向伝達機構(42)であり、
前記内周側軸受を第1の内周側軸受とし、
前記支持部材の内周面には、該支持部材の中心軸線方向に沿って第1の内周部(60a)と、第2の内周部(60b)とが形成され、
前記第1の内周部には、前記第1の内周側軸受が固定され、
前記第2の内周部には、第2の内周側軸受(64)が固定され、
前記入力軸は、前記第2の内周側軸受に支持されていることを特徴とする請求項10又は11記載の車載動力伝達装置。
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US10608497B2 (en) | 2017-12-18 | 2020-03-31 | Caterpillar Inc. | Electric power system having energy storage with motor-charged flywheel |
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JP2004042760A (ja) * | 2002-07-11 | 2004-02-12 | Takayuki Miyao | エネルギ蓄積型駆動装置 |
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JP4229175B2 (ja) * | 2006-11-22 | 2009-02-25 | トヨタ自動車株式会社 | 動力出力装置、それを備えた自動車、および動力出力装置の制御方法 |
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