JP2023522254A - ハイブリッド車のトルク配分戦略 - Google Patents
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
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- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
Description
Claims (16)
- 車両の電気機械を制御するための制御システムであって、
前記車両は、第1車軸車輪トルクを生成するために前記車両の第1の車軸にトルクを提供するように構成された内燃式のエンジンと、第2車軸車輪トルクを生成するために前記車両の第2の車軸にトルクを提供するように構成された電気機械とを含み、
前記制御システムは、1以上のコントローラを含み、
前記制御システムは、
前記エンジンのトルク要求および前記電気機械のトルク要求を出力することであって、前記エンジンの前記トルク要求と前記電気機械との前記トルク要求は、前記第1車軸車輪トルクと前記第2車軸車輪トルクとの間の要求トルク分割に依存する第1の比率を有し、受け取った前記第1車軸車輪トルクおよび受け取った前記第2車軸車輪トルクは、前記エンジンと前記電気機械との車輪トルク応答能力の差に依存する可変的な第2の比率を有する、ことと、
トリガ条件が満たされたことを判断することと
前記トリガ条件の充足に依存して、前記第1の比率からの前記第2の比率の偏差が抑制されるように、電気機械のトルク要求の決定を抑制偏差制御すること、を行うように構成されている、制御システム。 - 前記トリガ条件は、低トラクショントリガ条件であり、
前記低トラクショントリガ条件の充足は、低トラクション駆動面に関連する地形への、前記車両に対する地形の変化に依存し、
任意に、前記車両に対する地形が変化したという判断に応答して、前記車両に対する地形が低トラクション走行路面に関連しない地形に変化したという後の判断まで、抑制偏差制御が維持される、請求項1に記載の制御システム。 - 地形が変化したという前記判断は、前記車両が現在走行している路面の特性及び/又は種類を判定することを含む、請求項2に記載の制御システム。
- 地形が変化したという前記判断は、前記車両ユーザからの前記車両の地形モードを選択する少なくとも1つの入力を受け取ることを含む、請求項2または3に記載の制御システム。
- 前記トリガ条件の充足は、車輪スリップの検出に依存し、
任意に、前記車輪スリップの検出に応答して、前記車輪スリップがもはや検出されないことに関連する終了条件が満たされるまで、制御が維持される、請求項1から4のいずれかに記載の制御システム。 - 前記電気機械に対する前記トルク要求および前記内燃機関に対する前記トルク要求は、前記車両の前記トルク要求に依存しており、
前記電気機械が前記第2の車軸にトルクを提供し、前記エンジンが前記第1の車軸にトルクを提供する、請求項1から5のいずれかに記載の制御システム。 - 前記要求トルク分割は、車速、車両ステアリング、横方向加速度、または縦方向加速度のうちの少なくとも1つに依存する、請求項1から6のいずれかに記載の制御システム。
- 前記エンジンによって提供可能なトルクに依存する、前記エンジンのトルク要求に対する不足の指示を受け取るように構成されており、
前記第2の比率からの前記第1の比率の偏差は、前記不足の指示に依存する、請求項1から7のいずれかに記載の制御システム。 - 前記抑制偏差制御は、前記電気機械から要求可能なトルクを制限する制約を用いて行われる、請求項1から8のいずれかに記載の制御システム。
- 前記抑制偏差制御は、前記電気機械に対するトルク要求を低減するように構成され、これにより、前記エンジンが前記エンジンのトルクを変化させる速度に基づいて、前記電気機械が前記電気機械の提供トルクを前記電気機械の能力よりも遅い速度で変化させることを許容される、請求項1から9のいずれかに記載の制御システム。
- 前記電気機械のトルク要求の低減は、検出または推定されたエンジントルクに依存するエンジントルク制約に依存し、
前記エンジントルクは、前記エンジンに対する前記トルク要求に応答して前記エンジンにより提供可能なトルクに依存する、請求項10に記載の制御システム。 - 前記電気機械に対する前記トルク要求の判断を制御して、前記電気機械に補償トルクを前記第2の車軸に提供させ、
前記補償トルクは、前記不足分を補償するが、可変の前記第2の比率を前記第1の比率から偏移させるように構成され、
トリガ条件が満たされると、前記抑制偏差制御は、前記第1の比率から前記第2の比率への偏差が抑制されるように、前記第2の車軸への前記補償トルクの提供を抑制する、請求項8に従属する請求項に記載された制御システム。 - 請求項1から12のいずれかに記載の制御装置と、前記電気機械と、前記内燃機関とを備えたシステム。
- 任意に、前記車両は、前記エンジンから前記第1の車軸にトルクを機械的に供給し、前記第1の電気機械から前記第2の車軸にトルクを供給するように構成されるが、前記エンジンから前記第2の車軸にトルクを機械的に供給することができず、前記第1の電気機械から前記第1の車軸にトルクを機械的に供給することができない、請求項13に記載のシステムを有する車両。
- 車両の電気機械を制御する方法であって、
前記車両は、第1の車軸ホイールトルクを生成するために前記車両の第1の車軸にトルクを提供するように構成された内燃式のエンジンと、第2の車軸ホイールトルクを生成するために前記車両の第2の車軸にトルクを提供するように構成された電気機械とを含み、
前記方法は、
前記エンジンに対するトルク要求と前記電気機械に対するトルク要求とを出力するステップであって、前記エンジンに対する前記トルク要求と前記電気機械に対する前記トルク要求は、前記第1車軸車輪トルクと前記第2車軸車輪トルクとの間の要求トルク分割に依存する第1の比率を有し、受け取った前記第1車軸車輪トルクと受け取った前記第2車軸車輪トルクは、前記エンジンと前記電気機械との車輪トルク応答能力の差に依存する第2の可変比率を有する、ステップと
トリガ条件が充足されたことを判断するステップと、
前記トリガ条件の充足に依存して、前記第1の比率からの前記第2の比率の偏差が抑制されるように、前記電気機械に対するトルク要求の決定を制御するステップとを有する、方法。 - 実行されると、請求項15に記載の方法を実行するように構成されるコンピュータソフトウェア。
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