JP4466718B2 - 走行軌跡生成方法及び走行軌跡生成装置 - Google Patents
走行軌跡生成方法及び走行軌跡生成装置 Download PDFInfo
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Description
また、本発明に係る走行軌跡生成方法は、駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成方法であって、少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算ステップと、拘束条件演算ステップでの拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数を最適化するように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算ステップとを含むことを特徴とする。
また、本発明に係る走行軌跡生成装置は、駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成装置であって、少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算手段と、拘束条件演算手段での拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数を最適化するように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算手段とを備えることを特徴とする。
Claims (10)
- 駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成方法であって、
少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算ステップと、
前記拘束条件演算ステップでの拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数の評価値の変動が小さくなるように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算ステップと
を含むことを特徴とする走行軌跡生成方法。 - 車両の減速時に回生減速で減速することを優先させた走行軌跡を初期条件として生成する初期条件生成ステップを含み、
前記拘束条件演算ステップは、前記初期条件生成ステップにより生成された走行軌跡を初期条件として収束演算することを特徴とする請求項1に記載する走行軌跡生成方法。 - 前記初期条件生成ステップでは、ハイブリッド方式のシステム能力によって決定される減速度上限値と加速度上限値との和に対する減速度上限値の割合が大きいほどクリッピングポイントをカーブ入口側に移動させるとともに、前記減速度上限値と前記加速度上限値との和に対する減速度上限値の割合が大きいほど最小速度ポイントをカーブ出口側に移動させた走行軌跡を生成することを特徴とする請求項2に記載する走行軌跡生成方法。
- 連続するカーブを複数のブロックに分割するブロック分割ステップと、
前記カーブを最も短い通過時間である最速通過時間で走行する条件での最適化処理を行う最速走行最適化ステップと、
前記最速走行最適化ステップでの最適化結果に基づいて、前記ブロック分割ステップで分割した各ブロックの通過時間をそれぞれ演算する通過時間演算ステップと、
前記カーブでのブレーキ放熱量に対し、前記ブロック分割ステップで分割した各ブロックでのブレーキ放熱量の割合をそれぞれ算出し、算出した割合及び前記カーブでの目標通過時間に対する前記最速通過時間の差分から算出される余裕時間に基づいて、各ブロックの余裕時間をそれぞれ演算する余裕時間演算ステップと、
前記通過時間演算ステップで演算した各ブロックの通過時間と前記余裕時間演算ステップで演算した各ブロックの余裕時間とに基づいて各ブロックの目標通過時間をそれぞれ演算する目標通過時間演算ステップと
を含み、
前記拘束条件演算ステップは、前記目標通過時間演算ステップにより演算された前記目標通過時間を拘束条件に含めて収束演算すること
を特徴とする請求項1〜請求項3のいずれか1項に記載する走行軌跡生成方法。 - 駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成装置であって、
少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算手段と、
前記拘束条件演算手段での拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数の評価値の変動が小さくなるように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算手段と
を備えることを特徴とする走行軌跡生成装置。 - 車両の減速時に回生減速で減速することを優先させた走行軌跡を初期条件として生成する初期条件生成手段を備え、
前記拘束条件演算手段は、前記初期条件生成手段により生成された走行軌跡を初期条件として収束演算することを特徴とする請求項5に記載する走行軌跡生成装置。 - 前記初期条件生成手段では、ハイブリッド方式のシステム能力によって決定される減速度上限値と加速度上限値との和に対する減速度上限値の割合が大きいほどクリッピングポイントをカーブ入口側に移動させるとともに、前記減速度上限値と前記加速度上限値との和に対する減速度上限値の割合が大きいほど最小速度ポイントをカーブ出口側に移動させた走行軌跡を生成することを特徴とする請求項6に記載する走行軌跡生成装置。
- 連続するカーブを複数のブロックに分割するブロック分割手段と、
前記カーブを最も短い通過時間である最速通過時間で走行する条件での最適化処理を行う最速走行最適化手段と、
前記最速走行最適化手段での最適化結果に基づいて、前記ブロック分割手段で分割した各ブロックの通過時間をそれぞれ演算する通過時間演算手段と、
前記カーブでのブレーキ放熱量に対し、前記ブロック分割ステップで分割した各ブロックでのブレーキ放熱量の割合をそれぞれ算出し、算出した割合及び前記カーブでの目標通過時間に対する前記最速通過時間の差分から算出される余裕時間に基づいて、各ブロックの余裕時間をそれぞれ演算する余裕時間演算手段と、
前記通過時間演算手段で演算した各ブロックの通過時間と前記余裕時間演算手段で演算した各ブロックの余裕時間とに基づいて各ブロックの目標通過時間をそれぞれ演算する目標通過時間演算手段と
を備え、
前記拘束条件演算手段は、前記目標通過時間演算手段により演算された前記目標通過時間を拘束条件に含めて収束演算すること
を特徴とする請求項5〜請求項7のいずれか1項に記載する走行軌跡生成装置。 - 駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成方法であって、
少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算ステップと、
前記拘束条件演算ステップでの拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数を最適化するように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算ステップと
を含むことを特徴とする走行軌跡生成方法。 - 駆動方式がハイブリッド方式の車両の将来の走行軌跡を生成する走行軌跡生成装置であって、
少なくとも道路境界線の条件を含む拘束条件を満たす走行軌跡を収束演算により算出する拘束条件演算手段と、
前記拘束条件演算手段での拘束条件を満たしつつ、少なくともハイブリッドシステムにおける電力収支が正の場合の電力収支の評価を含む評価関数を最適化するように、加速度を変動させて収束演算して走行軌跡を導出する評価関数演算手段と
を備えることを特徴とする走行軌跡生成装置。
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| PCT/JP2008/069779 WO2009057703A1 (ja) | 2007-11-01 | 2008-10-30 | 走行軌跡生成方法及び走行軌跡生成装置 |
| CN2008800204919A CN101689330B (zh) | 2007-11-01 | 2008-10-30 | 行驶轨迹生成方法以及行驶轨迹生成装置 |
| DE112008003209T DE112008003209T5 (de) | 2007-11-01 | 2008-10-30 | Fahrspurerzeugungsverfahren und Fahrspurerzeugungsvorrichtung |
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| JP4766152B2 (ja) * | 2009-05-13 | 2011-09-07 | トヨタ自動車株式会社 | 車両走行制御装置 |
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| JP6324157B2 (ja) | 2014-03-27 | 2018-05-16 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | 情報処理装置、情報処理方法、およびプログラム |
| DE102017000591A1 (de) * | 2017-01-24 | 2018-07-26 | Man Truck & Bus Ag | Verfahren zum Betreiben eines Fahrzeugs, insbesondere eines Nutzfahrzeugs |
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| JP7069518B2 (ja) * | 2018-01-17 | 2022-05-18 | マツダ株式会社 | 車両制御装置 |
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| WO2009057703A1 (ja) | 2009-05-07 |
| JP2009115466A (ja) | 2009-05-28 |
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| CN101689330A (zh) | 2010-03-31 |
| CN101689330B (zh) | 2012-04-25 |
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