JP7343837B2 - 運転支援装置 - Google Patents
運転支援装置 Download PDFInfo
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- JP7343837B2 JP7343837B2 JP2019182638A JP2019182638A JP7343837B2 JP 7343837 B2 JP7343837 B2 JP 7343837B2 JP 2019182638 A JP2019182638 A JP 2019182638A JP 2019182638 A JP2019182638 A JP 2019182638A JP 7343837 B2 JP7343837 B2 JP 7343837B2
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- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
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Description
車両のドライバーがブレーキペダルを踏む意図を有しながら誤ってアクセルペダルを踏み込んでしまう操作である誤踏み操作が発生したと推定される場合に成立する所定の誤踏み判定条件が成立するか否かを判定する判定手段(S11)と、
前記判定手段によって前記誤踏み判定条件が成立したと判定された場合、前記ドライバーに対して警告を行う警告手段(S12)と、
を備えた運転支援装置において、
前記警告手段は、
前記ドライバーに対して現時点において踏み込んでいるペダルを戻すことを直接的に指示する表示及び音声の少なくとも一方を前記警告として発生するように構成されたことにある。
前記警告手段は、
足でペダルを踏んでいる状態を車両の横方向から見た図柄に足をペダルから離す向きの矢印を追加した図柄である注意喚起用図柄(A)を前記ドライバーが視認可能な表示器(51)に表示させることにより前記警告を行なうように構成されたことにある。
前記警告手段は、
現時点において踏込み操作しているペダルを戻すことを指示する文言を含む音声メッセージをスピーカから発生させることにより前記警告を行なうように構成された(10,26)ことにある。
前記警告手段は、
足でペダルを踏んでいる状態を車両の横方向から見た図柄に足をペダルから離す向きの矢印を追加した図柄である注意喚起用図柄を前記ドライバーが視認可能な表示器に表示させるとともに、
現時点において踏込み操作しているペダルを戻すことを指示する文言を含む音声メッセージをスピーカから発生させることにより前記警告を行なうように構成されたことにある。
前記警告手段は、
現時点において踏込み操作しているペダルを戻すことを指示する音声メッセージを発生させる前に、アクセルペダルが踏まれている旨の音声メッセージを前記スピーカから発生させるように構成されたことにある。
次に、誤踏み急発進抑制支援について、その概要から説明する。
ここで、誤踏み操作が発生したか否かについて判定(推定)する手法について説明する。
1.シフトレバーポジションが後退レンジ「R」である。
2.アクセル操作量が誤踏み判定操作量以上である。
3.アクセル操作速度が誤踏み判定操作速度以上である。
上記の条件1~3が、本実施形態における誤踏み判定条件である。
誤踏み判定操作量は、予め設定された誤踏み判定用のアクセル操作量の閾値である。誤踏み判定操作速度は、予め設定された誤踏み判定用のアクセル操作速度の閾値である。アクセル操作速度は、アクセル操作量の単位時間当たりの変化量を表す。
誤踏み操作が検出された場合、車両の駆動力が通常時に比べて弱められる。駆動力ECU30は、通常時においては、ドライバー要求駆動力マップに基づいて、アクセル操作量に対応したドライバー要求駆動力(目標駆動力)を設定し、駆動装置32で発生する車両の駆動力(実駆動力)がドライバー要求駆動力に近づくようにスロットルモータ31の作動を制御する。ドライバー要求駆動力マップは、アクセル操作量が大きいほど、ドライバー要求駆動力が大きくなるように、アクセル操作量とドライバー要求駆動力とを対応付けたデータである。
運転支援ECU10は、誤踏み操作が検出された場合、表示ECU50に誤踏み注意喚起表示指令を送信し、スピーカ26に誤踏み注意喚起用の音声信号を送信し、ブザー27に警報音出力指令を送信する。
次に、誤踏み急発進抑制支援の具体的な処理について説明する。図4は、運転支援ECU10の実施する誤踏み急発進抑制支援制御ルーチンを表す。運転支援ECU10は、支援選択スイッチ21のオン操作によって「誤踏み急発進抑制支援の実施を許可」するモードが選択されている場合に誤踏み急発進抑制支援制御ルーチンを繰り返し実施する。
例えば、注意喚起用図柄Aは、複数の図柄を使って切替表示されるようにしてもよい。例えば、表示ECU50は、図7に示すような、第1図柄A1、第2図柄A2、第3図柄A3を記憶しており、誤踏み判定条件が成立してからの時間経過に合わせて第1図柄A1→第2図柄A2→第3図柄A3の順番で表示を切り替える。
例えば、注意喚起の開始後、アクセルペダル22aが解放された(アクセル操作量=0)ことが検出された時点から、ブレーキ操作を行うように指示する態様で注意喚起を行ってもよい。例えば、運転支援ECU10は、図8に示す誤踏み急発進抑制支援制御ルーチンを実施する。この変形例2に係る誤踏み急発進抑制支援制御ルーチンは、実施形態に係る誤踏み急発進抑制支援制御ルーチン(図4)のステップS13とステップS14との間に、ステップS21、ステップS22の処理を追加したもので、他の処理については、実施形態に係る誤踏み急発進抑制支援制御ルーチンと同じである。
Claims (4)
- 車両のドライバーがブレーキペダルを踏む意図を有しながら誤ってアクセルペダルを踏み込んでしまう操作である誤踏み操作が発生したと推定される場合に成立する所定の誤踏み判定条件が成立するか否かを判定する判定手段と、
前記判定手段によって前記誤踏み判定条件が成立したと判定された場合、前記ドライバーに対して警告を行う警告手段と、
を備えた運転支援装置において、
前記警告手段は、
前記誤踏み判定条件が成立したと判定されたとき、前記ドライバーに対して、前記アクセルペダルが踏まれている旨の第1の音声メッセージを発生し、前記第1の音声メッセージを発生した後に現時点において踏み込んでいるペダルを戻すことを直接的に指示する第2の音声メッセージを発生する、ことを前記警告として行うように構成された、
運転支援装置。 - 請求項1に記載の運転支援装置において、
前記警告手段は、
前記誤踏み判定条件が成立したと判定されたとき前記ドライバーに対して現時点において踏み込んでいるペダルを戻すことを直接的に指示する表示を前記警告として発生するように構成された、
運転支援装置。 - 請求項2に記載の運転支援装置において、
前記警告手段は、
足とペダルとが接触している状態であって足でペダルを踏んでいる状態、を車両の横方向から見た図柄に、足をペダルから離す向きの矢印を追加した図柄、である注意喚起用図柄を前記ドライバーが視認可能な表示器に表示させることにより前記ドライバーに対して現時点において踏み込んでいるペダルを戻すことを直接的に指示する前記表示を発生する ように構成された、
運転支援装置。 - 請求項1に記載の運転支援装置において、
前記警告手段は、
前記警告を発生した後に初めて前記アクセルペダルの操作量がゼロになった場合、ブレーキ操作を行うことを指示する表示及び音声の少なくとも一方を発生するように構成された、
運転支援装置。
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