JP5550660B2 - 車両駆動装置の駆動出力を低減する方法 - Google Patents
車両駆動装置の駆動出力を低減する方法 Download PDFInfo
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Description
本発明の基本は、駆動出力の低減が、危険な走行状態を避けると同時に、走行状態に依存して、特に駆動出力を安全に低減できる走行状態において行われるということである。これに適した走行状態としては、小さな推力での走行又は速度が一定もしくは低下していく走行の他に、とりわけ制動又は回生状態がある。
ΔT=[(PmaxBeschleunigung−PKuehl)*tUeberhol]/CKomponente
ここで、PmaxBeschleunigungは最大の加速出力損失を、PKuehlは実際の冷却出力又は例えば周囲温度を考慮して求めることのできる予測される冷却出力を、tUeberholは追い越しの最大持続時間、例えば20s又は40sを、CKomponenteは部品の熱容量を表している。
ΔT=[(PmaxBeschleunigung−PKuehl)*tUeberhol]/CKomponente
ここで、PmaxBeschleunigungは最大の加速出力損失を、PKuehlは実際の冷却出力又は例えば周囲温度を考慮して求めることのできる予測される冷却出力を、tUeberholは追い越しの最大持続時間、例えば20s又は40sを、CKomponenteは関連する部品の熱容量を表している。
Claims (6)
- 車両駆動装置の駆動出力を低減する方法であって、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求めるステップ(101)と、
前記車両駆動装置の現在の走行状態を求めるステップ(103)と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定するステップ(105)と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減するステップ(107)と
を有しており、
前記現在の走行状態が、変化のない走行状態又は制動走行状態又は回生走行状態又は加速度閾値未満の加速度での加速走行状態である場合には、駆動出力の低減を許可し、
前記現在の走行状態が加速度閾値を超える加速度での加速走行状態、又は追い越し走行状態である場合には、駆動出力の低減を許可しない、
ことを特徴とする、車両駆動装置の駆動出力を低減する方法。 - 車両駆動装置の駆動出力を低減する方法であって、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求めるステップ(101)と、
前記車両駆動装置の現在の走行状態を求めるステップ(103)と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定するステップ(105)と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減するステップ(107)と
を有しており、
前記現在の走行状態が駆動出力の低減を許可する場合であって、
所定の又は予想される走行状態が前記温度差よりも大きい前記部品の温度上昇を引き起こす場合にのみ、駆動出力を低減する、
ことを特徴とする、車両駆動装置の駆動出力を低減する方法。 - 車両駆動装置のための制御装置であって、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求める手段と、
前記車両駆動装置の現在の走行状態を求める手段と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定する手段と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減する手段と
を有しており、
前記現在の走行状態が、変化のない走行状態又は制動走行状態又は回生走行状態又は加速度閾値未満の加速度での加速走行状態である場合には、駆動出力の低減を許可し、
前記現在の走行状態が加速度閾値を超える加速度での加速走行状態、又は追い越し走行状態である場合には、駆動出力の低減を許可しない、
ことを特徴とする、制御装置。 - 車両駆動装置のための制御装置であって、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求める手段と、
前記車両駆動装置の現在の走行状態を求める手段と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定する手段と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減する手段と
を有しており、
前記現在の走行状態が駆動出力の低減を許可する場合であって、
所定の又は予想される走行状態が前記温度差よりも大きい前記部品の温度上昇を引き起こす場合にのみ、駆動出力を低減する、
ことを特徴とする、制御装置。 - 車両駆動装置を制御するコンピュータに下記ステップを実行させるためのコンピュータプログラムであって、
前記プログラムが、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求めるステップ(101)と、
前記車両駆動装置の現在の走行状態を求めるステップ(103)と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定するステップ(105)と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減するステップ(107)と、
前記現在の走行状態が変化のない走行状態又は制動走行状態又は回生走行状態又は加速度閾値未満の加速度での加速走行状態である場合には駆動出力の低減を許可するステップと、
前記現在の走行状態が加速度閾値を超える加速度での加速走行状態、又は追い越し走行状態である場合には駆動出力の低減を許可しないステップと
を前記コンピュータに実行させる、
ことを特徴とする、プログラム。 - 車両駆動装置を制御するコンピュータに下記ステップを実行させるためのコンピュータプログラムであって、
前記プログラムが、
前記車両駆動装置の少なくとも1つの部品の温度と温度閾値との間の温度差を求めるステップ(101)と、
前記車両駆動装置の現在の走行状態を求めるステップ(103)と、
前記現在の走行状態が駆動出力の低減を許可するか否かを判定するステップ(105)と、
前記現在の走行状態が駆動出力の低減を許可する場合に、前記温度差を広げるために、前記少なくとも1つの部品の温度が低下するように前記車両駆動装置の駆動出力を低減するステップ(107)と、
前記現在の走行状態が駆動出力の低減を許可する場合であって、所定の又は予想される走行状態が前記温度差よりも大きい前記部品の温度上昇を引き起こす場合にのみ、駆動出力を低減するステップと
を、前記コンピュータに実行させる、
ことを特徴とする、プログラム。
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DE102008054699.2 | 2008-12-16 | ||
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US20110295451A1 (en) | 2011-12-01 |
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CN102245455A (zh) | 2011-11-16 |
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