JP6342856B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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Description
Claims (10)
- 運転状態を自動運転と手動運転とに切換可能な車両に搭載された車両制御装置であって、
カメラの撮像情報に基づいて前記車両が走行する道路の白線を検出すると共に、前記白線の検出結果に基づいて前記車両の走行車線を認識する車線認識部と、
前記車線認識部で認識された走行車線に基づいて、前記車両の運転状態が前記自動運転となるように前記車両の走行を制御する走行制御部と、
前記車線認識部における前記白線の検出精度に基づいて、前記走行制御部による前記車両の走行の制御が停止するまでのシステム余裕時間を推定する第一推定部と、
前記車両のドライバの状態に基づいて、前記車両の運転状態が前記自動運転の状態から前記ドライバが前記手動運転に復帰できるまでのハンドオーバー時間を推定する第二推定部と、
前記システム余裕時間及び前記ハンドオーバー時間を表示部に表示する表示制御部と、
を備え、
前記表示制御部は、前記システム余裕時間と前記ハンドオーバー時間との大小関係を視認可能に前記表示部に表示する、車両制御装置。 - 前記表示制御部は、前記システム余裕時間を棒グラフで前記表示部に表示し、前記ハンドオーバー時間を横棒で前記表示部に表示し、
前記システム余裕時間は、前記棒グラフの棒が長いほど時間が長いことを示している、請求項1に記載の車両制御装置。 - 前記表示制御部は、前記システム余裕時間と前記ハンドオーバー時間との変化の様子を折れ線グラフで前記表示部に表示する、請求項1に記載の車両制御装置。
- 前記表示制御部は、前記システム余裕時間と前記ハンドオーバー時間とを、2Dマップ上に示したポイントの位置で表示し、
前記2Dマップは、横軸が前記システム余裕時間に対応し、縦軸が前記ハンドオーバー時間に対応する、請求項1に記載の車両制御装置。 - 自動運転余裕時間を算出する自動運転余裕時間算出部をさらに備え、
前記自動運転余裕時間は、前記第一推定部によって推定された前記システム余裕時間から、前記第二推定部によって推定された前記ハンドオーバー時間を減算することによって算出され、
前記走行制御部は、前記車両を前記自動運転させている状態で、前記自動運転余裕時間算出部によって算出された前記自動運転余裕時間が0未満となった場合、運転状態を前記自動運転から前記手動運転に切り替える、請求項1に記載の車両制御装置。 - 前記表示制御部は、前記車両が前記自動運転の状態であり、前記自動運転余裕時間算出部によって算出された前記自動運転余裕時間が0未満となった場合に警報表示を行い、
前記走行制御部は、前記表示制御部によって前記警報表示がされた後に、前記車両の運転状態を前記自動運転から前記手動運転に切り替える、請求項5に記載の車両制御装置。 - 前記表示制御部は、前記警報表示として、ステアリングホイールを把持することを促す文字或いはアイコンを前記表示部に表示する、請求項6に記載の車両制御装置。
- 自動運転余裕時間を算出する自動運転余裕時間算出部をさらに備え、
前記自動運転余裕時間は、前記第一推定部によって推定された前記システム余裕時間から、前記第二推定部によって推定された前記ハンドオーバー時間を減算することによって算出され、
前記表示制御部は、前記車両が前記自動運転の状態であり、前記自動運転余裕時間が0以上、且つ注意喚起閾値未満の場合、注意喚起表示を行う、請求項1に記載の車両制御装置。 - 前記第一推定部は、前記白線の検出精度に加え、前記車両の周囲を走行する周辺車両の状況についても考慮して前記システム余裕時間を推定する、請求項1〜8のいずれか一項に記載の車両制御装置。
- 前記第一推定部は、前記白線の検出精度に加え、前記車両の周囲の走行環境についても考慮して前記システム余裕時間を推定する、請求項1〜8のいずれか一項に記載の車両制御装置。
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