JP2022505602A - 充電端末によってアキュムレータバッテリーを充電するための方法 - Google Patents
充電端末によってアキュムレータバッテリーを充電するための方法 Download PDFInfo
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Abstract
【選択図】図1
Description
a)充電ステーションにおいて利用可能な電力と電気のコストとの時間経過に伴う変化に関するデータを受信するステップと、
b)利用可能な電力が0でなく、電気のコストが最低であるタイムスロットを選択するステップと、
c)アキュムレータバッテリーがタイムスロットの時間に示す温度と、タイムスロットの開始におけるアキュムレータバッテリーの充電状態とを推定するステップと、
d)ステップc)において推定された温度と充電状態とに基づいて、充電ステーションがタイムスロット中にアキュムレータバッテリーに送ることが可能な電力を決定するステップと、
e)ステップd)において決定された電力に基づいて、タイムスロットの終了におけるアキュムレータバッテリーの新しい充電状態を導出するステップと、
f)新しい充電状態をターゲット充電状態と比較し、次いで、新しい充電状態がターゲット充電状態よりも高いかまたはターゲット充電状態に等しい場合、
g)タイムスロット中に充電ステーションによって前記電力でアキュムレータバッテリーを充電するステップ
とを含む。
- 新しい充電状態がターゲット充電状態よりも低い場合、追加のタイムスロットに関してステップb)~ステップe)が繰り返され、ステップf)において、ターゲット充電状態が、2つのタイムスロットの後にアキュムレータバッテリーが示す充電状態と比較される。
- ステップa)において、自動車両が充電ステーションから外されることがスケジュールされている出発時間が取得され、ステップb)において、選択されたタイムスロットは出発時間より前である。
- ステップb)~ステップe)の繰り返しの間、充電ステーションがタイムスロットの各々中にアキュムレータバッテリーに送ることが可能な電力が決定され、次いで、そこから、出発時間までのアキュムレータバッテリーの充電状態の変化が導出される。
- ステップb)において、いくつかのタイムスロットにおいて電気のコストが最低である場合、これらのタイムスロットの中から選択されるタイムスロットは最も早いタイムスロットである。
- ステップa)の前に、アキュムレータバッテリーの瞬時充電状態を決定するためと、瞬時充電状態を充電状態しきい値と比較するためと、瞬時充電状態が充電状態しきい値よりも低い場合、利用可能な電力が0でない最初のタイムスロットにおいてアキュムレータバッテリーを充電するためとの準備が行われる。
- ステップc)において、アキュムレータバッテリーの温度が、所定の数学モデルまたは所定のマップに基づいて推定される。
- ステップd)において、電力を決定するために、選択されたタイムスロット中に充電ステーションにおいて利用可能な電力と、自動車両によって許容できる最大電力であって、ステップc)において推定された温度と充電状態とに基づいて決定される最大許容電力との中から最も低い電力を選択するための準備が行われる。
- ステップe)において、タイムスロットの終了においてアキュムレータバッテリー中に蓄えられているエネルギーを計算するためと、次いで、そこから新しい充電状態を導出するためとの準備が行われる。
- 電気自動車10を始動させることを可能にする、少なくとも1つの電気モーター11と、
- 電気モーターに電流を供給するように各電気モーター11に接続された(以下トラクションバッテリー12と呼ぶ)アキュムレータバッテリーと、
- (空調、マルチメディアコンソールなど)電流を消費する補助デバイス13と、
- 充電器14と、
- コンピュータ15と
を含む。
ここで、
- MCp、R、RthextおよびRth(Qm)は、トラクションバッテリー12の化学的性質に依存する熱定数であり、
- テキストは周囲温度であり、
- Tairは、前記システムがアクティブ化される場合にトラクションバッテリー12を加熱/冷却するためのシステムの温度であり、
- Iはトラクションバッテリー12の電流強度である。
Ei=SОC0.Emax.SOH/100
ここで、
- Emaxは、コンピュータ15のメモリ中に記録され、トラクションバッテリー12が記憶することができる最大電気エネルギーに対応する、所定の定数であり、
- SOHは、サードパーティコンピュータによってコンピュータ15に送信される、トラクションバッテリー12の健康状態である。
Ei+1=Ei+Pi.Δt
Δtは、本ケースにおいて、15分に等しい。
SОCi+1=100.Ei+1/(Emax.SOH)
Claims (10)
- 充電ステーション(20)に電気的に接続される自動車両(10)が取り付けられるアキュムレータバッテリー(12)を充電するための方法であって、前記方法は、
a)前記充電ステーション(20)において利用可能な電力(P20)と電気のコスト(C20)との時間経過に伴う変化に関するデータを受信するステップと、
b)前記利用可能な電力(P20)が0でなく、電気の前記コストが最低であるタイムスロット(δti)を選択するステップと
を含み、
前記方法は、
c)前記アキュムレータバッテリー(12)が前記タイムスロット(δti)の時間に示す温度(Ti)と、前記アキュムレータバッテリー(12)が前記タイムスロット(δti)の開始において示す充電状態(SОCi)とを推定するステップと、
d)ステップc)において推定された前記温度(Ti)と前記充電状態(SОCi)とに基づいて、前記充電ステーション(20)が前記タイムスロット(δti)中に前記アキュムレータバッテリー(12)に送ることが可能な電力(Pi)を決定するステップと、
e)ステップd)において決定された前記電力(Pi)に基づいて、前記タイムスロット(δti)の終了における前記アキュムレータバッテリー(12)の新しい充電状態(SОCi+1)を導出するステップと、
f)前記新しい充電状態(SОCi+1)をターゲット充電状態(SОCN)と比較するステップと、次いで、前記新しい充電状態(SОCi+1)が前記ターゲット充電状態(SОCN)よりも高いかまたは前記ターゲット充電状態(SОCN)に等しい場合、
g)前記タイムスロット(δti)中に前記充電ステーション(20)によって前記電力(Pi)で前記アキュムレータバッテリー(12)を充電するステップと
をさらに含むことを特徴とする方法。 - 前記新しい充電状態(SОCi+1)が前記ターゲット充電状態(SОCN)よりも低い場合、
- 追加のタイムスロット(δtj)に関してステップb)~ステップe)が繰り返され、
- ステップf)において、前記ターゲット充電状態(SОCN)が、前記2つのタイムスロット(δti、δtj)の後に前記アキュムレータバッテリー(12)が示す前記充電状態(SОC)と比較される、請求項1に記載の充電方法。 - ステップa)において、前記自動車両(10)が前記充電ステーション(20)から外されることがスケジュールされている出発時間が取得され、ステップb)において、前記選択されたタイムスロットが前記出発時間より前である、請求項1または2に記載の充電方法。
- ステップb)~ステップe)の前記繰り返しの間、前記充電ステーション(20)が前記タイムスロット(δti、δtj)の各々中に前記アキュムレータバッテリー(12)に送ることが可能な電力(P)が決定され、次いで、そこから、前記出発時間までの前記アキュムレータバッテリー(12)の前記充電状態(SОC)の変化が導出される、請求項2または3に記載の充電方法。
- ステップb)において、いくつかのタイムスロットにおいて電気の前記コストが最低である場合、これらのタイムスロットの中から選択される前記タイムスロット(δti)が最も早いタイムスロットである、請求項1から4のいずれか一項に記載の充電方法。
- ステップa)の前に、
- 前記アキュムレータバッテリー(12)の瞬時充電状態(SОC0)を決定するためと、
- 前記瞬時充電状態(SОC0)を充電状態しきい値(SОCmin)と比較するためと、前記瞬時充電状態(SОC0)が前記充電状態しきい値(SОCmin)よりも低い場合、
- 前記利用可能な電力(P20)が0でない最初のタイムスロットにおいて前記アキュムレータバッテリー(12)を充電するためと
の準備が行われる、請求項1から5のいずれか一項に記載の充電方法。 - ステップc)において、前記アキュムレータバッテリー(12)の前記温度(Ti)が、所定の数学モデルまたは所定のマップに基づいて推定される、請求項1から6のいずれか一項に記載の充電方法。
- ステップd)において、前記電力(Pi)を決定するために、
- 前記選択されたタイムスロット(δti)中に前記充電ステーション(20)において利用可能な電力(P20)と、
- 前記自動車両(10)によって許容できる最大電力であって、ステップc)において推定された温度(Ti)と前記充電状態(SОCi)とに基づいて決定される最大許容電力と
の中から最も低い電力を選択するための準備が行われる、請求項1から7のいずれか一項に記載の充電方法。 - ステップe)において、前記タイムスロット(δti)の終了において前記アキュムレータバッテリー(12)中に蓄えられることになるエネルギー(Ei+1)を計算するためと、次いで、そこから前記新しい充電状態(SОCi+1)を導出するための準備が行われる、請求項1から8のいずれか一項に記載の充電方法。
- 少なくとも1つの電気駆動モーター(11)と、各電気モーター(11)に電流を供給するように設計されたアキュムレータバッテリー(12)とを含む自動車両(10)であって、請求項1から9のいずれか一項に記載の充電方法を実装するようにプログラムされたコンピュータ(15)を含むことを特徴とする自動車両(10)。
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