JP6272495B2 - 電気的駆動システムのためのトラクションコントロールのための制御装置及び方法 - Google Patents
電気的駆動システムのためのトラクションコントロールのための制御装置及び方法 Download PDFInfo
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Description
Claims (8)
- 電気で駆動する車両の、n相(但し、n≧1)電動機(4)に電圧供給する変圧器(3)のための制御装置(10)であって、
前記電動機(4)の現在の回転数(nm)と、前記変圧器(3)の現在の出力電流(lm)と、を定めるよう構成された監視ユニット(11)と、
前記監視ユニット(11)と結合されており、定められた前記現在の回転数(nm)に従って前記車両の車輪の瞬間車輪速度を計算するよう構成された計算ユニット(12)と、
前記計算ユニット(12)と結合されており、前記車輪の前記車輪速度の瞬間変化量が第1の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(Im)に少なくとも一時的に電流補正量を加えるよう構成されたスリップ制御ユニット(13)と、
を備え、
前記計算ユニット(12)はさらに、定められた前記現在の出力電流(Im)から定まる駆動トルクに基づいて前記車両の加速度を推定し、前記加速度を積算することにより前記車両の現在の車両速度を計算し、前記車両の前記計算された現在の車両速度と、前記定められた現在の回転数(nm)に依存する、前記車両の前記車輪の前記車輪速度と、を比較し、前記車輪の前記車輪速度と、前記車両の前記計算された現在の車両速度と、の差分が、第2の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(Im)に少なくとも一時的に電流補正量を加えるよう構成される、制御装置(10)。 - 前記計算ユニット(12)はさらに、前記定められた現在の出力電流(Im)から現在の駆動トルクを計算し、前記車輪に加えられている駆動トルクを計算するために、計算された前記現在の駆動トルクを現在の走行抵抗の分だけ補正し、前記車両の前記現在の車両速度を計算するために、補正された前記車輪に加えられている駆動トルクを利用するよう構成される、請求項1に記載の制御装置(10)。
- 前記スリップ制御ユニット(13)はさらに、前記車輪の前記車輪速度の瞬間変化量と、前記車両の前記計算された現在の車両速度の変化量と、の差分が、第3の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(Im)に少なくとも一時的に電流補正量を加えるよう構成される、請求項1又は2に記載の制御装置(10)。
- 電気で駆動する車両の電気的駆動システム(1)であって、
n相(但し、n≧1)の電動機(4)と、
前記n相電動機(4)と結合されており、前記電動機(4)のためのn相供給電圧を提供するよう構成された変圧器(3)と、
前記電動機(4)及び前記変圧器(3)と結合されており、トラクションコントロールのために、前記変圧器(3)のための出力電流制御信号(Mc)を提供するよう構成された、請求項1〜3のいずれか1項に記載の制御装置(10)と、
を備えた、電気的駆動システム(1)。 - 請求項4に記載の電気的駆動システムを備えた電気で駆動する車両。
- 電気で駆動する車両の電気的駆動システム(1)におけるトラクションコントロールのための方法(20)であって、前記電気的駆動システム(1)は、電気で駆動する車両の、n相(但し、n≧1)電動機(4)に電圧供給する変圧器(3)を有し、
前記方法は、以下の工程を有し、即ち、
前記電動機(4)の現在の回転数(nm)と、前記変圧器(3)の現在の出力電流(Im)と、を定める工程(21)と、
定められた前記現在の回転数(nm)に従って、前記車両の車輪の瞬間車輪速度を計算する工程(22)と、
前記車輪の前記車輪速度の瞬間変化量が、第1の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(1)に少なくとも一時的に電流補正量を加える工程(24)と、を有し、
前記方法(20)は、以下の工程、即ち、
定められた前記現在の出力電流(Im)から定まる駆動トルクに基づいて前記車両の加速度を推定し、前記加速度を積算することにより前記車両の現在の車両速度を計算する工程(23a)と、
前記車両の計算された前記現在の車両速度と、前記定められた現在の回転数(nm)に依存する、前記車両の前記車輪の前記車輪速度と、を比較する工程(23b)と、
前記車輪の前記車輪速度と、前記車両の前記計算された現在の車両速度と、の差分が、第2の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(Im)に少なくとも一時的に電流補正量を加える工程(24a)と、
をさらに有する、方法(20)。 - 前記車両の前記現在の車両速度を計算する前記工程(23a)は、
前記定められた現在の出力電流(Im)から現在の駆動トルクを計算する工程と、
前記車輪に加えられている駆動トルクを計算するために、現在の走行抵抗の分だけ、前記計算された現在の駆動トルクを補正する工程と、
補正された前記車輪に加えられている前記駆動トルクを介して、前記車両の前記現在の車両速度を計算する工程と、
を含む、請求項6に記載の方法(20)。 - 前記方法(20)は、
前記車輪の前記車輪速度の瞬間変化量と、前記車両の前記計算された現在の車両速度の変化量と、の差分が、第3の所定の閾値を上回る場合には、前記変圧器(3)の前記出力電流(Im)に電流補正量を少なくとも一時的に与える工程(24b)を含む、請求項6又は7に記載の方法(20)。
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DE102019113772A1 (de) * | 2019-05-23 | 2020-11-26 | Kiepe Electric Gmbh | Verfahren zur Abschätzung eines Drehmoments mindestens eines elektrischen Antriebsmotors eines Fahrzeugs |
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