JP6520858B2 - 車両走行制御装置 - Google Patents
車両走行制御装置 Download PDFInfo
- Publication number
- JP6520858B2 JP6520858B2 JP2016155793A JP2016155793A JP6520858B2 JP 6520858 B2 JP6520858 B2 JP 6520858B2 JP 2016155793 A JP2016155793 A JP 2016155793A JP 2016155793 A JP2016155793 A JP 2016155793A JP 6520858 B2 JP6520858 B2 JP 6520858B2
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- vehicle
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- stop
- driver
- force
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Description
更に、第2発明装置の前記制御手段は、前記停止保持制御の実行中に同停止保持制御の終了が要求されたとき(図6のステップ605及びステップ610それぞれでの「Yes」との判定)に前記シフトレバーの設定位置が前記パーキングレンジ及び前記ニュートラルレンジ以外のレンジである場合(ステップ615及びステップ630それぞれでの「No」との判定)、前記停止保持制御の終了を禁止する(ステップ632及び図8のステップ810)、ように構成される。
次に、実施装置の作動の概要について説明する。実施装置の運転支援ECU10は、車線維持制御(LKA)及び追従車間距離制御(ACC)を実行できるようになっている。更に、運転支援ECU10は、車線維持制御及び追従車間距離制御が実行されている場合、「運転者が車両を運転する能力を失っている異常状態(以下、単に「異常状態」と称呼する。)」にあるか否かを繰り返し判定する。運転支援ECU10は、運転者が異常状態にあると判定してから所定時間が経過する時点まで運転者の異常状態が継続している場合、車両の車速を低下させてその車両を停止させるようになっている。
車線維持制御は、自車両の位置が「その自車両が走行しているレーン(走行車線)」内の目標走行ライン付近に維持されるように、操舵トルクをステアリング機構に付与して運転者の操舵操作を支援する制御である。車線維持制御自体は周知である(例えば、特開2008−195402号公報、特開2009−190464号公報、特開2010−6279号公報、及び、特許第4349210号明細書、等を参照。)。従って、以下、車線維持制御を簡単に説明する。
YRctgt=K1×Dc+K2×θy+K3×ν …(1)
追従車間距離制御は、物標情報に基づいて、自車両の直前を走行している先行車と自車両との車間距離を所定の距離に維持しながら、自車両を先行車に追従させる制御である。追従車間距離制御自体は周知である(例えば、特開2014−148293号公報、特開2006−315491号公報、特許第4172434号明細書、及び、特許第4929777号明細書等を参照。)。従って、以下、追従車間距離制御について簡単に説明する。
Gtgt(加速用)=ka1・(k1・ΔD1+k2・Vfx(a)) …(2)
Gtgt(減速用)=kd1・(k1・ΔD1+k2・Vfx(a)) …(3)
運転支援ECU10は、運転者の異常状態が最初に発生した時点(図2の時刻t1)から所定時間(以下、「第1閾値時間」と称呼する。)T1th、その異常状態が継続した場合(図2の時刻t2)、運転者が異常状態にあると判定する。運転支援ECU10は、運転者が異常状態にあると最初に判定したとき、運転者の状態をそれまでに設定されていた「正常状態」から「仮異常状態」に変更する。更に、この場合、運転支援ECU10は、運転者に対して運転操作を促すための警告を行う。
運転支援ECU10は、車両停止制御によって車両を強制停止させた時点(図2の時刻t5)でAORの禁止を継続すると共にEPB制動を行う停止保持制御を開始し且つ摩擦ブレーキ機構42による油圧制動を終了する。これにより、車両の停止後、車両が停止状態に保持される。
ところで、車両の停止後、異常状態にある運転者を救助する救助者が終了要求ボタン20を誤って操作して停止保持制御の終了が誤って要求されたときに停止保持制御の終了が許可された場合において運転者がアクセルペダル11aを操作した状態にあると、運転者の救助中にもかかわらず、車両が急発進してしまう可能性がある。
次に、実施装置の具体的な作動について説明する。実施装置の運転支援ECU10のCPU(以下、単に「CPU」と称呼する。)は、図3にフローチャートにより示した正常時ルーチンを所定時間dTの経過毎に実行するようになっている。
Claims (6)
- 車両を走行させるための駆動力を前記車両の駆動輪に供給する駆動力供給装置、及び、前記車両を制動するための制動力を前記車両に付与する制動力付与装置、を備えた車両に適用され、
前記運転者が前記車両を運転する能力を失っている異常状態にあるか否かの判定を継続的に行う、異常判定手段、及び、
前記運転者が前記異常状態にあると判定された時点である異常判定時点以降において前記制動力付与装置により前記車両に前記制動力を付与して前記車両を停止させる車両停止制御を実行する、制御手段、
を備えた、車両走行制御装置において、
前記制御手段は、
前記車両停止制御により前記車両を停止させた場合、前記運転者が要求する駆動力である運転者要求駆動力に基づいて前記駆動力供給装置に前記駆動輪への供給を要求する供給要求駆動力を、前記運転者要求駆動力よりも小さい第1駆動力以下の値に制限する第1駆動力制限を行うと共に前記制動力付与装置から前記駆動輪に前記制動力を付与し続ける継続制動を行うことによって前記車両を停止状態に保持する停止保持制御を実行し、
前記停止保持制御の実行中に同停止保持制御の終了が要求されたときにシフトレバーの設定位置がパーキングレンジ及びニュートラルレンジの何れかである場合、前記第1駆動力制限を終了し、
前記停止保持制御の実行中に同停止保持制御の終了が要求されたときに前記シフトレバーの設定位置が前記パーキングレンジ及び前記ニュートラルレンジ以外のレンジである場合、前記第1駆動力制限を終了すると共に前記供給要求駆動力を、前記第1駆動力以上であって且つ前記運転者要求駆動力よりも小さい第2駆動力以下の値に制限する第2駆動力制限を行う、
ように構成された、
車両走行制御装置。 - 請求項1に記載の車両走行制御装置において、
前記第2駆動力は、前記第1駆動力と等しい、
車両走行制御装置。 - 請求項1又は請求項2に記載の車両走行制御装置において、
前記制御手段は、前記第2駆動力制限を開始してから所定閾値時間が経過した場合、前記第2駆動力制限を終了する、ように構成された、
車両走行制御装置。 - 請求項1乃至請求項3の何れか一項に記載の車両走行制御装置において、
前記制御手段は、前記停止保持制御の実行中に同停止保持制御の終了が要求されたときに前記シフトレバーの設定位置が前記パーキングレンジ及び前記ニュートラルレンジの何れかである場合、前記継続制動の終了を許可する、ように構成された、
車両走行制御装置。 - 車両を走行させるための駆動力を前記車両の駆動輪に供給する駆動力供給装置、及び、前記車両を制動するための制動力を前記車両に付与する制動力付与装置、を備えた車両に適用され、
前記運転者が前記車両を運転する能力を失っている異常状態にあるか否かの判定を継続的に行う、異常判定手段、及び、
前記運転者が前記異常状態にあると判定された時点である異常判定時点以降において前記制動力付与装置により前記車両に前記制動力を付与して前記車両を停止させる車両停止制御を実行する、制御手段、
を備えた、車両走行制御装置において、
前記制御手段は、
前記車両停止制御により前記車両を停止させた場合、前記運転者が要求する駆動力である運転者要求駆動力に基づいて前記駆動力供給装置に前記駆動輪への供給を要求する供給要求駆動力を、前記運転者要求駆動力よりも小さい所定駆動力以下の値に制限する駆動力制限を行うと共に前記制動力付与装置から前記駆動輪に制動力を付与し続ける継続制動を行うことによって前記車両を停止状態に保持する停止保持制御を実行し、
前記停止保持制御の実行中に同停止保持制御の終了が要求されたときにシフトレバーの設定位置がパーキングレンジ及びニュートラルレンジの何れかである場合、前記停止保持制御の終了を許可し、
前記停止保持制御の実行中に同停止保持制御の終了が要求されたときに前記シフトレバーの設定位置が前記パーキングレンジ及び前記ニュートラルレンジ以外のレンジである場合、前記停止保持制御の終了を禁止する、
ように構成された、
車両走行制御装置。 - 請求項5に記載の車両走行制御装置において、
前記制御手段は、前記停止保持制御の終了を禁止してから所定閾値時間が経過した場合、前記停止保持制御の終了を許可する、ように構成された、
車両走行制御装置。
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JP6158523B2 (ja) | 2013-02-04 | 2017-07-05 | トヨタ自動車株式会社 | 車間距離制御装置 |
JP2015089725A (ja) * | 2013-11-06 | 2015-05-11 | スズキ株式会社 | 緊急時暴走抑制装置 |
US9260059B2 (en) * | 2014-04-25 | 2016-02-16 | Robert Bosch Gmbh | False warning reduction using location data |
JP2016007894A (ja) * | 2014-06-23 | 2016-01-18 | トヨタ自動車株式会社 | 注意喚起装置及び走行制御装置 |
JP6455456B2 (ja) | 2016-02-16 | 2019-01-23 | トヨタ自動車株式会社 | 車両制御装置 |
CN105774772B (zh) * | 2016-03-09 | 2018-08-28 | 王德红 | 汽车智能制动自动执行系统及实施方法 |
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US10239537B2 (en) | 2019-03-26 |
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