JPWO2016121044A1 - 駐車支援システム及び駐車支援方法 - Google Patents
駐車支援システム及び駐車支援方法 Download PDFInfo
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Abstract
Description
[非接触給電システム]
先ず、図1を参照して、実施形態に係わる非接触給電システムについて説明する。非接触給電システムは、地上側コイルユニット24と車両側コイルユニット7との間で非接触にて給電するシステムである。詳細には、電磁誘導や共振現象を利用して、接触なしに道路下に埋設されたコイル(地上側コイルユニット24)から車両2の底面付近に搭載されたコイル(車両側コイルユニット7)へ、車両が停止している時に給電することができるシステムである。給電された電力は、電圧センサ8及びリレースイッチ9を介してバッテリ10(二次電池を含む)へ送電され、送電された電力によってバッテリ10は充電される。
次に、非接触給電システムに用いる駐車支援システムについて説明する。上記した非接触給電を行うためには、図2(a)に示すように、地上側コイルユニット24に対する車両2の位置、詳細には、車両側コイルユニット7の位置を予め合わせる必要がある。駐車支援システム1は、駐車支援システム1のユーザである車両2の乗員が行う、車両の位置あわせ操作、即ち駐車を支援するシステムである。
(1)第1領域(α)の内側である。
(2)第1領域(α)の外側であり且つ第2領域(α+β)の内側である。
(3)第2領域(α+β)の外側である。
図7及び図8のフローチャートを参照して、第1実施形態に係わる駐車支援方法を説明する。第1実施形態に係わる駐車支援方法は、図1に示した駐車支援システムを用いて実施される。
第2実施形態では、駐車支援中に、車両側コイルユニット7と地上側コイルユニット24とのギャップを測定し、ギャップの測定値に基づいて給電可能性を判断する。更に、第2実施形態では、ギャップが最大と最小の間に位置する時に給電が可能となる第3領域に対する車両の位置を判断し、この判断結果及びギャップ測定値に基づいて給電可能性を判断する。
(1)第1領域(α)の内側である。
(2)第1領域(α)の外側であり且つ第1中間領域(α+γ1)の内側である。
(3)第1中間領域(α+γ1)の外側であり且つ第2中間領域(α+γ1+γ2)の内側である。
(4)第2中間領域(α+γ1+γ2)の外側であり且つ第2領域(α+γ1+γ2+β)の内側である。
(5)第2領域(α+γ1+γ2+β)の外側である。
2 車両
4 車両コントローラ(車両位置判断部、給電可能性判断部)
5 表示器
7 車両側コイルユニット
21 地上コントローラ(車両位置判断部、給電可能性判断部)
24 地上側コイルユニット
25a、25b 距離計測器
Gv ギャップ変動幅
L1、L2 ピッチ
Z1、Z2 中間ギャップ
α 第1凹凸構造
β 第2凹凸構造
γ1 第1中間凹凸構造
γ2 第2中間凹凸構造
Claims (7)
- 地上側コイルユニットと車両側コイルユニットとの間で非接触にて給電する非接触給電システムに用いる駐車支援システムであって、
車両側コイルユニットと地上側コイルユニットとのギャップが最大である時に給電が可能となる第1領域、及び前記ギャップが最小である時に給電が可能となる第2領域の各々に対する車両の位置を判断する車両位置判断部と、
前記車両位置判断部による判断結果に基づいて給電可能性を判断する給電可能性判断部と、
前記給電可能性判断部による判断結果を車両の乗員に対して表示する表示器と
を備えることを特徴とする駐車支援システム。 - 前記ギャップを測定する測定センサを更に備え、
前記給電可能性判断部は、車両の位置が第1領域の外側であり且つ第2領域の内側であると判断された場合において、前記測定センサにより計測されたギャップ測定値に基づいて、給電可能性を判断する
ことを特徴とする請求項1に記載の駐車支援システム。 - 前記車両位置判断部は、前記ギャップが最大と最小の間に位置する中間ギャップである時に給電が可能となる第3領域に対する車両の位置を判断し、
前記給電可能性判断部は、前記車両位置判断部による判断結果及びギャップ測定値に基づいて給電可能性を判断する
ことを特徴とする請求項2に記載の駐車支援システム。 - 前記給電可能性判断部は、車両の位置が前記第3領域の内側であると判断された場合において、前記ギャップ測定値に対してギャップ変動幅を加算した値が、前記中間ギャップよりも小さい場合、給電が可能であると判断する
ことを特徴とする請求項3に記載の駐車支援システム。 - 前記給電可能性判断部は、車両の位置が第1領域の外側であり且つ第2領域の内側であると判断された場合に、前記ギャップの変動によって給電可能から不可能へ変化する可能性があると判断する、ことを特徴とする請求項1に記載の駐車支援システム。
- 前記第1領域に対応する、地上側或いは車両側のいずれか一方の領域に形成された第1凹凸構造と、
前記第2領域から前記第1領域を除いた領域に対応する、前記一方の領域に形成された第2凹凸構造と、
地上側或いは車両側の他方に、前記第1凹凸構造及び前記第2凹凸構造のピッチと等しい間隔で配置された2つの距離計測器と、を更に備え、
前記第1凹凸構造における凹部の深さ又は凸部の高さは前記第2凹凸構造のそれと相違し、前記第1凹凸構造のピッチは前記第2凹凸構造のピッチと一致し、
前記車両位置判断部は、前記2つの距離計測器の各々が計測する距離の差と前記凹部の深さ又は前記凸部の高さとを比較することにより、車両の位置を判断する
ことを特徴とする請求項1〜5のいずれか一項に記載の駐車支援システム。 - 地上側コイルユニットと車両側コイルユニットとの間で非接触にて給電する非接触給電システムに用いる駐車支援方法であって、
車両側コイルユニットと地上側コイルユニットとのギャップが最大である時に給電が可能となる第1領域、及び前記ギャップが最小である時に給電が可能となる第2領域の各々に対する車両の位置を判断し、
前記車両の位置の判断結果に基づいて給電可能性を判断し、
前記給電可能性の判断結果を車両の乗員に対して表示する
ことを特徴とする駐車支援方法。
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