JP2009520629A - ハイブリッド車両の作動方法 - Google Patents
ハイブリッド車両の作動方法 Download PDFInfo
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- 230000007246 mechanism Effects 0.000 claims abstract description 11
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- UPPMZCXMQRVMME-UHFFFAOYSA-N valethamate Chemical compound CC[N+](C)(CC)CCOC(=O)C(C(C)CC)C1=CC=CC=C1 UPPMZCXMQRVMME-UHFFFAOYSA-N 0.000 claims description 11
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Abstract
Description
本発明によれば有利には、パラレル式のハイブリッドにおいて、駆動トルクを車両の動力装置、具体的には内燃機関と電気機械に対して最適に割当てることが可能となる。その他にも搭載電源網の電力需要を充足させ、電気的なエネルギー蓄積器の充電状態を許容範囲に維持することが可能である。例えば搭載電源網の目下の電力需要と目下の充電状態から、電気機械に対する目標電力を求めることが可能である。電気的な目標電力を電気機械の作動点の選択のもとで予め設定することはあまり意味がない。なぜなら電気機械のトルクは電気機械の目下の回転数を考慮して直接その結果からもたらされるからである。ハイブリッド運転(=内燃機関と電気機械が作動されている運転状態)の際に存在する自由度、すなわち2つの動力装置としての内燃機関と電気機械に対する目標駆動トルクの割当ては、それによって既に定められるようになる。例えば(トータル的にみて)有利な"エネルギーコスト"であることがわかっている場合には、むしろ電気的な目標電力から偏差させることの方がかえって有利となるときがある。例えばこの場合は充電を増加させることである。エネルギーコストとは、例えば電気的なエネルギーを生成するのに必要な燃料量と生成された電気エネルギー量から形成されるものである。エネルギーコストはドライブトレーンの現下の作動時点ないしは走行状態に依存している。エネルギーコストが不利な場合には、充電量を減少させたり放電させることも考えられる。電気的な目標電力は、各時点毎ではなく、時間的にも平均して充足されなければならない。相応の方法は他のハイブリッド構想、例えばパワー分岐型のハイブリッド車両のもとでも用いられる。エネルギー蓄積器は、有利には電気的なエネルギー蓄積器である。しかしながら他のエネルギー蓄積方式、例えばフライホイール方式も考えられる。
図1はハイブリッド駆動機構の有利な制御ストラテジを表した図であり、
図2は、内燃機関ないし電気機械の角速度に依存して最大トルクの経過を表した図であり、
図3は2つの作動点の間の跳躍的変化のもとでのトルクと電力の関係を時間に関して表した図である。
図1〜図3には本発明の実施例が示されている。内燃機関10は例えば吸気管内燃料噴射機構と電子制御式アクセルペダル(電子制御式アクセル、スロットル弁機構)を備えている。内燃機関10のフライホイールは、介在する分離クラッチなしで電気機械12に連結されており(クランクシャフトスタータジェネレータ)、そのためここでは電気のみによる走行は不可能である。内燃機関10のトルクと電気機械12のトルクが、駆動トルクに加算される。この駆動トルクは有段の変速比を有するマニュアルトランスミッション14とシャフト16を介して図には示されていない駆動輪に伝達される(図1参照)。さらに内燃機関10のための制御機器18と電気機械12のための制御機器18′が設けられている。
Claims (13)
- 少なくとも2つの動力装置(10,12)が駆動形態で協働し、少なくとも一時的にエネルギー蓄積器が一方の動力装置(12)から充電され、さらに少なくとも一時的に一方の動力装置(12)がエネルギー蓄積器から駆動エネルギーを供給され、前記動力装置(12)は目標電力(Pelsoll)を生成している、ハイブリッド駆動機構の作動のための方法において、
駆動機構の要求された目標駆動トルク(Msoll)が生成されると同時に動力装置(12)の目標電力(Pelsoll)が時間的に平均して維持され、その際目標電力(Pelsoll)からの偏差が動力装置(10,12)の実際の作動点に依存して許容されるようにしたことを特徴とする方法。 - 前記動力装置(10,12)の作動点の最適化が実際の周辺条件と目標駆動トルク(Msoll)に依存して行われる、請求項1記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)が、最適化の際に考慮される、請求項2記載の方法。
- 充電が前記動力装置(10,12)の作動点の最適化に結び付く場合に、エネルギー蓄積器の充電が増強される、請求項1から3いずれか1項記載の方法。
- 前記最適化は、車両制御アルゴリズムの実行期間中に行われる、請求項2から4いずれか1項記載の方法。
- 前記最適化のために、複数の周辺条件の様々なセットに対する結果が車両制御部の特性マップ内にファイルされる、請求項2から4いずれか1項記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)に基づいて、特性マップを用いてファイルされた結果が修正変更される、請求項6記載の方法。
- 平均して動力装置(12)の様々な電力実際値(Pelist)に結び付くような複数の特性マップのセットがファイルされる、請求項2から4いずれか1項記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)に基づいて、複数の特性マップのセットの選択が行われる、請求項6記載の方法。
- 個々の特性マップセットの出力間で補間が行われる、請求項8または9記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)が、増幅係数(k)の設定によって重み付けされる、請求項2から10いずれか1項記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)が、ドライブトレーンの作動状態に依存して制限される、請求項2から11いずれか1項記載の方法。
- 先行する期間において加算若しくは積分された、前記動力装置(12)の電力目標値(Pelsoll)と電力実際値(Pelist)の偏差(ΔE)が、ドライブトレーンの1つの作動状態から他の作動状態への切り替わりの際に新たに初期化される、請求項2から12いずれか1項記載の方法。
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DE102010011163A1 (de) * | 2010-03-12 | 2011-09-15 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Steuerung eines Lade- und/oder Entladevorgangs eines Energiespeichers in einem Hybridfahrzeug |
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DE102020204562A1 (de) | 2020-04-08 | 2021-10-14 | Volkswagen Aktiengesellschaft | Verfahren zur Steuerung eines Antriebsstranges eines Hybridfahrzeugs |
CN111559387B (zh) * | 2020-04-09 | 2022-06-14 | 宁波吉利汽车研究开发有限公司 | 一种节能驾驶提示方法、装置、设备和存储介质 |
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