JP2013523523A - 車両のレンジ計算のためのシステムおよび方法 - Google Patents
車両のレンジ計算のためのシステムおよび方法 Download PDFInfo
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Abstract
【選択図】図6
Description
y=a0+a1x (1)
ここにおけるa0およびa1係数は、それぞれ切片値と傾きを示している。エネルギー消耗の傾きが決定される。たとえば、最小二乗線形回帰アルゴリズムは次の式に基づいてエネルギー消耗の傾きを決定する。
xextrap=-a0/a1 (4)
timeremain=xextrap−xi (5)
Rangeremain=timeremain *vavg (6)
である。
Claims (15)
- 車両の残余の運転距離レンジを計算するためのシステムであって、
(a)所定の車両運転条件データを検知するためのドライバー入力センサと、
(b)対応するエネルギー供給手段のエネルギー蓄積容量データを検知するためのエネルギー蓄積センサと、
(c)前記ドライバー入力センサと前記エネルギー蓄積センサと通信状態にあるコントローラであって、該コントローラはメモリとプロセッサと含むところの、コントローラと、
(d)前記コントローラの前記メモリに格納された実行可能なレンジ計算ソフトウエアプログラムであって、該レンジ計算ソフトウエアプログラムは、前記ドライバー入力センサからの検知された車両運転条件データと、前記エネルギー蓄積センサからの検知されたエネルギー蓄積容量データとを用いて、前記エネルギー蓄積容量データの平均を計算し、前記エネルギー蓄積容量データの傾きを決定し、前記エネルギー蓄積容量データの切片値を決定し、決定された平均と傾きと切片値とに対して最小二乗線形回帰を適用して、残余のレンジを求めることによりレンジを決定するところの、レンジ計算ソフトウエアプログラムと、
(e)前記コントローラと通信状態にある表示装置であって、該表示装置は決定された残余のレンジを受信し、ユーザによって利用される表示装置に残余のレンジを表示する、表示装置と
を備えてなるシステム。 - 前記エネルギー供給手段はバッテリーであり、前記エネルギー蓄積センサはバッテリーの充電状態を判定する請求項1に記載のシステム。
- 前記バッテリーのデータは、前記バッテリーの電気的エネルギー消耗の距離レンジを計算するため、車両運転中連続的に測定される請求項2に記載のシステム。
- 前記バッテリーの充電状態は、バッテリーエネルギー制御モジュールによって測定される、請求項2に記載のシステム。
- 前記エネルギー供給手段はエンジンであり、前記エネルギー蓄積センサは燃料タンクのレベルセンサである、請求項1に記載のシステム。
- 決定されたレンジは、前記バッテリーおよびガソリンエンジンの両方によって供給されるエネルギーの残余の合計距離レンジである、請求項5記載のシステム。
- 車両によって使用されるエネルギーが消耗されるであろう距離レンジを計算するための方法であって、
(a)所定の車両運転条件データを検知するためのドライバー入力センサを用いて所定の車両運転条件を検知するステップと、
(b)対応するエネルギー蓄積容量センサを用いてエネルギー供給手段のエネルギー蓄積容量データを検知するステップと、
(c)検知されたエネルギー蓄積容量に対し最小二乗線形回帰を適用するコントローラのメモリに格納された実行可能なレンジ計算ソフトウエアプログラムを用いる車両コントローラにおいて、前記エネルギー供給手段による前記車両の残余の距離レンジを計算するステップと、
(d)前記車両の運転者によって利用される前記車両に備えられるディスプレイに、計算された残余の距離レンジを表示するステップと、
を備えてなる方法。 - 残余の距離レンジを計算するステップはさらに、
(a)検知されたエネルギー蓄積容量データの平均を決定するステップと、
(b)検知されたエネルギー蓄積容量データの傾きを決定るステップと、
(c)検知されたエネルギー蓄積容量の切片値を決定するステップと、
(d)判定された平均と傾きと切片値とに対し最小二乗線形回帰を適用して、前記車両の残余のレンジを求めるステップと
を含む、請求項7に記載の方法。 - さらに、
(a)時間に対してエネルギー消耗の線形比率を確立するステップと、
(b)最小二乗線形回帰アルゴリズムを用いてエネルギー消耗の傾きを計算するステップと、
(c)平均値を計算し、切片値を求めるステップと、
(d)エネルギーがゼロまで消耗されるであろう、将来の時間を推定するステップと、
(e)標本が取得された時点ですべてのエネルギーが消耗されると推定された残余の時間を計算するステップと、
(f)走行距離を費やした時間で割った値に残余の時間を乗じた値を用いて残余のレンジを計算するステップと、
を含む、請求項8に記載の方法。 - エネルギー蓄積容量を検知するステップは、さらに、バッテリーエネルギー制御モジュールによって高圧バッテリーから充電状態のデータを検知するステップを含む、請求項7に記載の方法。
- エネルギー蓄積容量を検知するステップは、さらに、エンジンに備えられる燃料タンクからの燃料タンクレベルのデータを検知するステップを含む、請求項10に記載の方法。
- 残余の距離レンジを計算するステップは、検知されたエネルギー蓄積容量と検知された燃料タンクのレベルとを足して、車両を運転するための残余の合計距離レンジを予測すること、
を含む、請求項11に記載の方法。 - コントローラとディスプレイは、最小二乗線形回帰アルゴリズムを実行するよう適用されたソフトウエアプログラムを有する一体ユニットである、請求項7に記載の方法。
- ムービングウインドウを用いて、初期の収集データ点を除く、動く一連のデータ点を計算することにより、エネルギー容量を決定するステップを、さらに有する、請求項7に記載の方法。
- 車両は、車両を運転するエネルギーを供給するために高圧バッテリーとガソリンにより動力が得られるエンジンとを有するハイブリッド車である、請求項7に記載の方法。
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