JP2009035128A - 車両のエネルギ回生装置 - Google Patents
車両のエネルギ回生装置 Download PDFInfo
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Abstract
【解決手段】モータジェネレータ7は、ハイブリッド車両1が減速走行しているとき回生状態に設定される。トランスミッション5は、モータジェネレータ7が回生状態に設定されたとき、トランスミッション5のギア段を固定し、ハイブリッド車両1の速度が所定速度以下であるとハイブリッド制御装置15が判定したとき、トランスミッション5のギア段の固定を解除して所定車速に対応した低ギア段側にギア段を設定する。
【選択図】図1
Description
エンジン3に高負荷がかかるハイブリッド車両1の発進時や加速時には、モータジェネレータ7を駆動状態に設定し、エンジン3とモータジェネレータ7とによって駆動輪29を回転駆動させる。これにより、エンジン3の負荷が軽減される。モータジェネレータ7によるトルクアシスト量は、排ガスや燃費が最適となるように制御される。このようなトルクアシストによって、トランスミッション5が早期にシフトアップを行うため、燃費が向上する。なお、本実施形態では、車速信号が示す車速の上昇率(ハイブリッド車両1の加速度)が大きく、且つアクセル操作信号がアクセルペダルの操作を示しているとき、ハイブリッド車両1の発進時又は加速時と判定するが、例えば、アクセルペダルの踏み込み方向への変動速度が所定速度よりも速い場合に発進時又は加速時と判定するなど、他の方法によってハイブリッド車両1が発進時又は加速時であるか否かを判定してもよい。さらに、ハイブリッド車両1がGPS情報の受信機能を有する場合、車速センサ35を設けず、ハイブリッド車両1の位置情報からハイブリッド車両1の車速を算出してもよい。
ハイブリッド車両1の定速走行時には、モータジェネレータ7を非作動状態に設定し、エンジン3によってのみ駆動輪29を回転駆動させる。これにより、走行状態に応じた最適なギア段でハイブリッド車両1が走行し、燃費が向上する。また、モータジェネレータ7が駆動系から切り離されているので、モータフリクションや磁界によってエネルギが無駄に消費されてしまうことがない。本実施形態では、車速信号が示す車速がゼロではなく且つその変動率(ハイブリッド車両1の加速度)が所定の範囲内であるとき、ハイブリッド車両1の定速走行時と判定するが、例えば、アクセルペダルの踏み込み方向又は踏み込み解除方向への変動速度が所定速度よりも遅い場合に定速走行時と判定するなど、他の方法によってハイブリッド車両1が定速走行時であるか否かを判定してもよい。
ハイブリッド車両1の減速時には、モータジェネレータ7を回生状態に設定し、トランスミッション5の出力軸の回転を第2クラッチ33及びギア31を介してモータジェネレータ7に伝達し、モータジェネレータ7が発電した電力を回生エネルギとしてM/Gインバータ17を介してバッテリ9に蓄電する。この減速時には、第1クラッチ21によってエンジン3とトランスミッション5とを切り離す。これにより、モータジェネレータ7にプロペラシャフト23の回転が無駄なく伝達され、回生エネルギを効率良く発生さて回収することができる。さらに、停車直前のエンジンアイドル回転以下の車速やエンジンブレーキ相当の緩減速での走行であっても、回生エネルギを得ることができる。本実施形態では、車速信号が示す車速がゼロではなく且つアクセル操作信号がアクセルペダルの非操作(操作解除)を示しているとき、ハイブリッド車両1の減速時と判定するが、例えば、車速信号が示す速度が減少傾向である場合に減速時と判定したり、ハイブリッド車両1がGPS情報の受信機能を有する場合にハイブリッド車両1の位置情報からハイブリッド車両1の加速度を算出し、この加速度が減速状態である場合に減速時と判定したり、ハイブリッド車両1が前後方向の加速度を検出する加速度センサを有する場合にこの加速度センサが検出する加速度が減速状態である場合に減速時と判定するなど、他の方法によってハイブリッド車両1が減速時であるか否かを判定してもよい。
3 エンジン
5 トランスミッション(有段変速機)
7 モータジェネレータ(発電手段、電動手段)
9 バッテリ(二次電池)
11 エンジン制御装置
13 トランスミッション制御装置(変速制御手段)
15 ハイブリッド制御装置(車速判定手段、変速制御手段)
17 モータジェネレータ・インバータ
19 表示装置
21 第1クラッチ
23 プロペラシャフト(駆動軸)
25 差動装置
27 リヤアクスル
29 後輪(駆動輪)
31 ギア
33 第2クラッチ
35 車速センサ(走行状態検出手段)
37 アクセルセンサ(走行状態検出手段)
39 燃料噴射装置
41 シフトアクチュエータ
43 発電量検知部
47 スタータ
49 モータ制御装置
51 バッテリ制御装置
53 シフトセンサ(走行状態検出手段)
55 回転速度センサ(走行状態検出手段)
Claims (2)
- 駆動軸とを連結する有段変速機と、
前記有段変速機のギア段を設定変更する変速制御手段と、
前記駆動軸によって従動回転して発電する回生状態に設定可能な発電手段と、
前記駆動軸を駆動回転する駆動状態に設定可能な電動手段と、
前記発電手段が生起した電力を蓄電するとともに、前記電動手段に電力を供給する二次電池と、
車両の速度が所定速度以下であるか否かを判定する車速判定手段と、を備え、
前記発電手段は、前記車両が減速走行しているとき前記回生状態に設定され、
前記変速制御手段は、前記発電手段が前記回生状態に設定されたとき、前記有段変速機のギア段を固定し、前記車両の速度が所定速度以下であると前記車速判定手段が判定したとき、前記有段変速機のギア段の固定を解除して前記所定車速に対応した低ギア段側に前記ギア段を設定する
ことを特徴とする車両のエネルギ回生装置。 - 請求項1に記載の車両のエネルギ回生装置であって、
前記車両の走行状態を検出する走行状態検出手段を備え、
前記変速制御手段は、前記走行状態検出手段が検出した走行状態に基づいて前記ギア段を設定変更する自動変速機能を有し、前記発電手段が前記回生状態に設定されたとき、前記自動変速機能を無効とし、前記車両の速度が所定速度以下であると前記車速判定手段が判定したとき、前記自動変速機能を有効とする
ことを特徴とする車両のエネルギ回生装置。
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Cited By (6)
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JP2011213305A (ja) * | 2010-04-01 | 2011-10-27 | Toyota Motor Corp | 車両制御システム |
JP2013113138A (ja) * | 2011-11-25 | 2013-06-10 | Daihatsu Motor Co Ltd | 内燃機関の制御装置 |
EP2631140A4 (en) * | 2010-10-22 | 2015-08-05 | Hino Motors Ltd | VEHICLE, CONTROL METHOD AND PROGRAM |
WO2016001728A1 (en) | 2014-06-30 | 2016-01-07 | Toyota Jidosha Kabushiki Kaisha | Driving system for vehicle |
JP2016030472A (ja) * | 2014-07-25 | 2016-03-07 | トヨタ自動車株式会社 | 車両用駆動装置 |
JP2018016130A (ja) * | 2016-07-26 | 2018-02-01 | 三菱自動車工業株式会社 | ハイブリッド車両用ギア制御装置 |
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JP6354241B2 (ja) * | 2014-03-25 | 2018-07-11 | いすゞ自動車株式会社 | ハイブリッド車両及びその制御方法 |
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JP3542158B2 (ja) * | 1994-03-17 | 2004-07-14 | 本田技研工業株式会社 | 電動車両の制動装置 |
JP3584549B2 (ja) * | 1995-06-16 | 2004-11-04 | アイシン・エィ・ダブリュ株式会社 | 車両用駆動装置の制御装置 |
JP3591153B2 (ja) * | 1996-07-02 | 2004-11-17 | トヨタ自動車株式会社 | ハイブリッド車両の駆動制御装置 |
JP3991502B2 (ja) * | 1999-05-14 | 2007-10-17 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP3712910B2 (ja) * | 2000-03-23 | 2005-11-02 | トヨタ自動車株式会社 | 車両の変速機制御装置 |
JP4206879B2 (ja) * | 2003-09-22 | 2009-01-14 | トヨタ自動車株式会社 | ハイブリッド車両のシフトダウン操作時におけるモータジェネレータの回生制御方法 |
JP4039427B2 (ja) * | 2005-02-16 | 2008-01-30 | トヨタ自動車株式会社 | 自動車及びその制御方法 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011213305A (ja) * | 2010-04-01 | 2011-10-27 | Toyota Motor Corp | 車両制御システム |
EP2631140A4 (en) * | 2010-10-22 | 2015-08-05 | Hino Motors Ltd | VEHICLE, CONTROL METHOD AND PROGRAM |
JP2013113138A (ja) * | 2011-11-25 | 2013-06-10 | Daihatsu Motor Co Ltd | 内燃機関の制御装置 |
WO2016001728A1 (en) | 2014-06-30 | 2016-01-07 | Toyota Jidosha Kabushiki Kaisha | Driving system for vehicle |
US10232845B2 (en) | 2014-06-30 | 2019-03-19 | Toyota Jidosha Kabushiki Kaisha | Driving system for vehicle |
JP2016030472A (ja) * | 2014-07-25 | 2016-03-07 | トヨタ自動車株式会社 | 車両用駆動装置 |
JP2018016130A (ja) * | 2016-07-26 | 2018-02-01 | 三菱自動車工業株式会社 | ハイブリッド車両用ギア制御装置 |
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