JP5880740B1 - 衝突回避システム及び衝突回避方法 - Google Patents
衝突回避システム及び衝突回避方法 Download PDFInfo
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Abstract
Description
図1は、第1実施形態にかかる衝突回避システムの機能ブロック図である。図1において、本実施形態にかかる衝突回避システム1は、車両に設けられるものであり、運転者状態検出部21と、制御装置30と、車外警報装置40と、車内警報装置50とを備えている。
図5は、第2実施形態にかかる衝突回避システムの機能ブロック図である。図5において、本実施形態にかかる衝突回避システム1は、図1および図2を参照して説明した第1実施形態にかかる衝突回避システムに、さらに、距離測定部22および距離判定部34を追加した構成である。
図7は、第3実施形態にかかる衝突回避システムの機能ブロック図である。図7において、本実施形態にかかる衝突回避システム1は、図5および図6を参照して説明した第2実施形態にかかる衝突回避システムに、さらに、時間判定部35を追加した構成である。
運転者状態検出部21および運転者状態判定部31は、運転開始時刻からの経過時間を検出及び判定してもよい。例えば、自車10がレンタカーである場合、運転開始直後(運転開始時刻からの経過時間が短い)だと、運転者が自車10の運転に慣れていないことがあり、そのような場合に他車への警告を行うことにより、他車が適切にブレーキもしくはアクセルの操作またはステアリングの操作を行うための時間を十分に確保することができ、衝突を回避することができる。
運転者の属性に応じて他車への警告を行うようにしてもよい。例えば、運転歴、運転免許証の色(ゴールド免許かそれ以外かなど)、免許の種別(大型免許を持っているか否かなど)を運転者が予め入力しておき、時間判定部35が判定する所定時間を調整するようにしてもよい。
運転中の携帯電話機やスマートフォンに着信があった場合に、他車への警告を行うようにしてもよい。着信音が鳴ったことに反応して(驚いて)、運転者が急ブレーキや急ハンドルの操作を行った場合でも、車外警報装置40により他車に警告を行った後に、車内警報装置50により自車10の運転者に警告を行うため、他車が適切にブレーキもしくはアクセルの操作またはステアリングの操作を行うことが期待でき、衝突を回避することができる。着信音は、車内にマイクロフォンを設けておくことによって検出できる。
運転者状態検出部21および運転者状態判定部31は、居眠り状態に限らず、他の運転者状態を検出し、判定するようにしてもよい。例えば、運転者のわき見状態、運転者の持病(例えば、てんかん)の発作の発生状態を検出して、車外警報装置40により他車に警告を行った後に、車内警報装置50により自車10の運転者に警告を行うようにしてもよい。運転者のわき見状態は、運転者の顔を撮影して解析することによって検出できる。また、運転者の持病の発作は、例えば筋電図によって検出できる。
図8は、本実施形態にかかる衝突回避システムによる衝突回避方法の例を示すフローチャートである。図8において、運転者状態検出部21は、自車10の運転者の状態を検出する(ステップS101)。運転者状態判定部31は、運転者状態検出部21が検出した運転者の状態が、居眠り状態か否かを判定する(ステップS102)。
11 車体
12F 前輪
12R 後輪
13F 前部
13R 後部
21 運転者状態検出部
22 距離測定部
30、130 制御装置
31 運転者状態判定部
32 車外警報装置制御部
33 車内警報装置制御部
34 距離判定部
35 時間判定部
40 車外警報装置
41 警告表示部
42 警告音出力部
43 警告信号送信部
50、150 車内警報装置
51、151 警告表示部
52、152 警告音出力部
53 警告振動部
100 後続車
110 警告信号受信部
Claims (10)
- 自車の運転者の状態を検出する運転者状態検出部と、
前記自車の周囲を走る他車に向けて警報に関する車外警報動作を行う車外警報装置と、
前記自車の運転者への警報に関する車内警報動作を行う車内警報装置と、
前記運転者状態検出部によって検出した前記運転者の状態に基づいて、前記車外警報装置および前記車内警報装置を制御する制御部と、を備え、
前記制御部は、前記運転者の状態に基づいて、前記車外警報動作を行った後、前記車内警報動作を行うように、前記車外警報装置および前記車内警報装置を制御する
衝突回避システム。 - 前記自車と前記他車との距離を測定する距離測定部をさらに備え、
前記制御部は、前記距離測定部によって測定された前記距離が所定範囲内である場合に、前記車外警報動作および前記車内警報動作を行うように、前記車外警報装置および前記車内警報装置を制御する
請求項1に記載の衝突回避システム。 - 前記他車は、自車の後方を走る後続車を含む
請求項1または2に記載の衝突回避システム。 - 前記運転者状態検出部は、前記運転者の居眠り状態を検出する
請求項1から請求項3のいずれか1項に記載の衝突回避システム。 - 前記運転者状態検出部は、前記運転者の脳波を検出する脳波センサを含み、
前記運転者の脳波に基づいて、前記運転者の居眠り状態を検出する
請求項4に記載の衝突回避システム。 - 前記運転者状態検出部は、運転者の画像を検出する撮影部を含み、
前記運転者の画像に基づいて、前記運転者の居眠り状態を検出する
請求項4に記載の衝突回避システム。 - 前記制御部は、前記車外警報動作を行った後、さらに所定時間が経過した後に、前記車内警報動作を行う
請求項1から請求項6のいずれか1項に記載の衝突回避システム。 - 前記車外警報動作は、前記他車に向けて所定の表示を行う動作と、前記他車に向けて所定の音を出力する動作と、の少なくとも一方を含む
請求項1から請求項7のいずれか1項に記載の衝突回避システム。 - 前記車外警報動作は、前記他車内に設けられた他の警報装置を動作させるための信号を、該他車へ送信する動作を含む
請求項1から請求項8のいずれか1項に記載の衝突回避システム。 - 自車の運転者の状態を検出するステップと、
前記自車の周囲を走る他車に向けて警報に関する車外警報動作を行うステップと、
前記自車の運転者への警報に関する車内警報動作を行うステップと、
を含み、
前記運転者の状態に基づいて、前記車外警報動作を行った後、前記車内警報動作を行う
衝突回避方法。
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JPWO2016103468A1 (ja) | 2017-04-27 |
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US9913607B2 (en) | 2018-03-13 |
CN107004364A (zh) | 2017-08-01 |
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