JP4192939B2 - ハイブリッド動力装置 - Google Patents
ハイブリッド動力装置 Download PDFInfo
- Publication number
- JP4192939B2 JP4192939B2 JP2005307480A JP2005307480A JP4192939B2 JP 4192939 B2 JP4192939 B2 JP 4192939B2 JP 2005307480 A JP2005307480 A JP 2005307480A JP 2005307480 A JP2005307480 A JP 2005307480A JP 4192939 B2 JP4192939 B2 JP 4192939B2
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- Prior art keywords
- output
- power
- reduction
- motor
- reduced
- 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.)
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Classifications
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
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Description
これを防止するために変速時に電動機のトルクダウンを禁止すると、変速ショックを防止することができなくなる。
請求項1に記載のハイブリッド動力装置は、主動力源が出力する動力の一部を回転出力軸に分配し、他部を発電機に分配することで発電された電力により蓄電装置に充電すると共に、発電機の電力と蓄電装置の電力との一方又は両方によって駆動される電動機により変速機を介して回転出力軸に動力を伝達するハイブリッド動力装置であって、前記変速機の変速時に前記電動機の出力を低減する電動機出力低減手段と、前記蓄電装置への充電可不可を判定する充電判定手段と、前記電動機出力低減手段により前記電動機の出力が低減される期間に、前記充電判定手段にて充電不可と判定された場合には、前記変速機の変速時に前記電動機の出力を低減して主動力の回転数を増加させるとともに、前記電動機の出力低減分の電力によって前記蓄電装置が充電されることが抑制されるように前記発電機の発電量を低減する発電量低減手段とを備えたことを特徴とする。
請求項2に記載のハイブリッド動力装置では、請求項1において、前記発電量低減手段は、前記発電機の発電量を低減する場合は、前記電動機出力低減手段によりなされた前記電動機の出力低減分に対応した発電量低減を行うことを特徴とする。
請求項3に記載のハイブリッド動力装置では、請求項1又は2において、前記電動機出力低減手段は前記電動機の出力低減後に徐々に低減を解消すると共に、該低減解消に対応して前記発電量低減手段は前記発電機の発電量低減を徐々に解消することを特徴とする。
請求項4に記載のハイブリッド動力装置では、請求項1〜3のいずれかにおいて、前記主動力源又は前記発電機の回転数を検出する回転数検出手段と、前記電動機出力低減手段により前記電動機の出力が低減される期間に、前記回転数検出手段にて検出された回転数が基準回転数より高くなった場合に、前記主動力源の出力を低減する主動力源出力低減手段とを備えたことを特徴とする。
請求項6に記載のハイブリッド動力装置では、請求項1〜5のいずれかにおいて、前記主動力源は内燃機関であることを特徴とする。
図1は車両用ハイブリッド動力装置2の概略構成を表すブロック図である。車両用ハイブリッド動力装置2は車両に搭載されるものであって、動力源4の動力は回転出力軸6に伝達され、回転出力軸6からデファレンシャル8を介して駆動輪10に駆動力として伝達される。一方、走行のための駆動力を出力する力行制御、あるいはエネルギを回収する回生制御が可能なアシスト動力源であるモータジェネレータ12(以下「MG2」と称する)が設けられている。MG2は変速機14を介して回転出力軸6に連結され、MG2と回転出力軸6との間で伝達される動力は、変速機14にて設定される変速比に応じて増減される。
本処理が開始されると、まずT−ECU30の制御状態から変速機14が変速中か否かが判定される(S100)。変速中で無ければ(S100でno、図5:t0前)、このまま本処理を終了する。したがって実質的な処理はなされない。
尚、以後、同一の変速時においてステップS102にてyesと判定される状態が繰り返されても、MG2トルクダウン(S104)とMG1トルクダウン制御処理実行開始(S106)は、既に実行されているので、重複して実行はなされない。
以後、MG1による発電負荷の低下により、機関回転数Neは一時的に増加する(t12〜t14)。しかしNe<NET+aである限り(S152でyes)、ステップS156を経て、ステップS158にてnoと判定されて、一旦本処理を終了する経過を繰り返す。ただし、電力収支保持のためのMG1トルクダウン(S156)は、既に実行されているので、重複して実行されることはない。
(イ).変速機14の変速時にはT−ECU30からのトルクダウン要求により、変速時MG2トルクダウン制御処理(図3)のステップS104が実行されてMG2の出力を低減するので、変速時のショックが防止される。
(ハ).MG2のトルクダウンの解消も、MG1のトルクダウンの解消も共に徐々に実行しているので、急激な制御処理の変化が無く、安定した制御処理ができ、制御上のショックを防止できる。
(a).MG1トルクダウン制御処理(図4)のステップS152では、機関回転数Neにより過剰回転を判定していたが、MG1の過剰回転の防止の観点から、直接、MG1の回転を検出して判定しても良い。
Claims (7)
- 主動力源が出力する動力の一部を回転出力軸に分配し、他部を発電機に分配することで発電された電力により蓄電装置に充電すると共に、発電機の電力と蓄電装置の電力との一方又は両方によって駆動される電動機により変速機を介して回転出力軸に動力を伝達するハイブリッド動力装置であって、
前記変速機の変速時に前記電動機の出力を低減する電動機出力低減手段と、
前記蓄電装置への充電可不可を判定する充電判定手段と、
前記電動機出力低減手段により前記電動機の出力が低減される期間に、前記充電判定手段にて充電不可と判定された場合には、前記変速機の変速時に前記電動機の出力を低減して主動力の回転数を増加させるとともに、前記電動機の出力低減分の電力によって前記蓄電装置が充電されることが抑制されるように前記発電機の発電量を低減する発電量低減手段と、
を備えたことを特徴とするハイブリッド動力装置。 - 請求項1において、前記発電量低減手段は、前記発電機の発電量を低減する場合は、前記電動機出力低減手段によりなされた前記電動機の出力低減分に対応した発電量低減を行うことを特徴とするハイブリッド動力装置。
- 請求項1又は2において、前記電動機出力低減手段は前記電動機の出力低減後に徐々に低減を解消すると共に、該低減解消に対応して前記発電量低減手段は前記発電機の発電量低減を徐々に解消することを特徴とするハイブリッド動力装置。
- 請求項1〜3のいずれかにおいて、前記主動力源又は前記発電機の回転数を検出する回転数検出手段と、
前記電動機出力低減手段により前記電動機の出力が低減される期間に、前記回転数検出手段にて検出された回転数が基準回転数より高くなった場合に、前記主動力源の出力を低減する主動力源出力低減手段と、
を備えたことを特徴とするハイブリッド動力装置。 - 請求項4において、前記主動力源出力低減手段は、前記電動機出力低減手段にて低減された出力と前記発電量低減手段にて低減された発電量との一方又は両方に対応する出力低減を実行することを特徴とするハイブリッド動力装置。
- 請求項1〜5のいずれかにおいて、前記主動力源は内燃機関であることを特徴とするハイブリッド動力装置。
- 請求項1〜6のいずれかにおいて、前記充電判定手段は、前記蓄電装置が基準値以上の充電状態である場合、又は前記蓄電装置の温度が基準温度以下に低温化している場合に充電不可と判定することを特徴とするハイブリッド動力装置。
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DE102006049393.1A DE102006049393B9 (de) | 2005-10-21 | 2006-10-19 | Hybridantriebseinheit |
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