JP6176122B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- JP6176122B2 JP6176122B2 JP2014004510A JP2014004510A JP6176122B2 JP 6176122 B2 JP6176122 B2 JP 6176122B2 JP 2014004510 A JP2014004510 A JP 2014004510A JP 2014004510 A JP2014004510 A JP 2014004510A JP 6176122 B2 JP6176122 B2 JP 6176122B2
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- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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Description
図1から図10を参照して、第1実施形態について説明する。本実施形態は、車両制御装置に関する。図1は、本発明の第1実施形態に係る車両制御装置の動作を示すフローチャート、図2は、第1実施形態に係る車両の概略構成図、図3は、第1実施形態に係る車両のスケルトン図、図4は、第1実施形態に係る車両制御装置のブロック図、図5は、第1実施形態に係る走行状態の一例を示す共線図、図6は、第1実施形態に係る他の走行状態を示す共線図、図7は、第1実施形態に係るさらに他の走行状態を示す共線図、図8は、第1実施形態の作動係合表を示す図、図9は、捩れ荷重の説明図、図10は、第1実施形態に係る車両制御装置の動作に係るタイムチャートである。
HV_ECU50のモード判定部50bは、算出された要求駆動力や車速等に基づいて、HV走行モードあるいはEV走行モードを選択する。HV走行モードは、少なくともエンジン2を動力源として車両1を走行させる走行モードである。HV走行モードにおいて、第一回転機MG1は、エンジントルクに対する反力受けとして機能することができる。第一回転機MG1は、例えば、図5に示すように、エンジントルクTeに対する反力トルクTm1を発生させて、エンジン2の動力をリングギヤR1から出力させる。リングギヤR1から出力されるエンジン2の動力は、出力軸20から駆動輪25に向けて伝達される。
EV走行モードは、第二回転機MG2を動力源として車両1を走行させる走行モードである。EV走行モードで車両1を前進走行させる場合、第一クラッチCL1は、例えば、解放状態とされる。HV_ECU50は、第二回転機MG2に正回転方向のトルクを出力させ、正回転させる。これにより、第二クラッチCL2が係合し、第二回転機MG2によって出力される正トルクが車両1を前進駆動する。HV_ECU50は、EV走行モードにおいて、第一回転機MG1を力行も回生も行わないフリーの状態とする。これにより、EV走行モードでは、エンジン2が回転を停止し、第一回転機MG1が空転する。
本実施形態の車両制御装置100は、所定走行モードを有する。所定走行モードは、第一クラッチCL1を解放状態とし、かつ第二回転機MG2を伝達経路11から遮断してエンジン2を動力源として走行する走行モードである。所定走行モードは、HV走行モードの一形態と考えることもできる。所定走行モードでは、第二回転機MG2が発生させるトルクは、車両1を駆動するトルクとしても制動するトルクとしても用いられない。つまり、所定走行モードの第二回転機MG2は、車両1の駆動力源としても制動力源としても働かない休止状態にある。従って、所定走行モードは、第二回転機MG2を休止させる休止モードともいえる。また、所定走行モードの第二回転機MG2は、第二回転機MG2を動力源とするHV走行モード等への移行に備えて待機する待機状態にある。従って、所定走行モードは、第二回転機MG2を待機させる待機モードともいえる。
第二回転機MG2が伝達経路11から切り離されることで、伝達経路11の慣性が低減される。従って、図10に示すように、パーキング装置6が解放された後のドライブシャフトトルクの振幅が小さなものとなる。また、伝達経路11の慣性が低減されていることで、駆動軸24のトルク振動が早期に収束する。図10では、車両1に対する発進指示がなされる時刻t13よりも前に、駆動軸24のトルク振動が収束している。一方、図15に示すように、第二回転機MG2が伝達経路11に連結されたままであると、トルク振動が収束するまでの時間が長くなる。図15では、発進指示がなされる時刻t3において、なおトルク振動が収束していない。
第1実施形態の変形例について説明する。図11は、第1実施形態の変形例に係る車両制御装置の動作を示すフローチャートである。本変形例において、上記第1実施形態と異なる点は、坂路判定がなされている場合に、低減制御を実行する点である。パーキング装置6を解除する場合に解放されるエネルギーが特に大きくなるのは、車両1が坂路に停車しているときである。本変形例によれば、坂路判定がなされた場合に限り第二回転機MG2による低減制御を実行することで、低減制御の実行による電力消費量を抑制することができる。
図12を参照して、第2実施形態について説明する。図12は、第2実施形態に係る車両制御装置の動作を示すフローチャートである。第2実施形態において、上記第1実施形態と異なる点は、波状路走行を検出した場合に低減制御を行う点、および低減制御では第二回転機MG2を逆回転させることに代えて第一クラッチCL1を解放する点である。
上記第1実施形態および第2実施形態の第1変形例について説明する。図13は、各実施形態の第1変形例に係る車両のスケルトン図である。上記第1実施形態および第2実施形態のトランスアクスルは、エンジン2の出力軸2aと第二回転機MG2の回転軸Shとが異なる軸上にある複軸式であった。第1変形例のトランスアクスルは、エンジン2と第二回転機MG2とが同軸上にある単軸式である点で上記実施形態と異なる。
上記第1実施形態および第2実施形態の第2変形例について説明する。図14は、各実施形態の第2変形例に係る車両のスケルトン図である。第2変形例に係る車両1は、遊星歯車機構10と出力ギヤ26との間に配置された第三クラッチCL3を有する。第三クラッチCL3は、キャリアC1と出力ギヤ26および第二リングギヤR2との間に介在している。第三クラッチCL3は、例えば、摩擦係合式の多板クラッチであり、係合状態と解放状態とに任意に切り替え可能である。遊星歯車機構10のサンギヤS1は第一回転機MG1のロータRt1に接続されている。キャリアC1は、エンジン2の出力軸2aおよび第三クラッチCL3に接続されている。リングギヤR1は、車体側に固定されており、回転不能である。その他の構成については、各実施形態の第1変形例に係る車両1(図13)の構成と同様とすることができる。
上記第1実施形態および第2実施形態の第3変形例について説明する。上記各実施形態では、所定走行モードにおいて、第二回転機MG2の回転が停止されたが、所定走行モードにおける第二回転機MG2の作動状態は、これに限定されるものではない。例えば、所定走行モードにおいて、第二回転機MG2は、シャフト回転数Nsよりも低い回転数で正方向に回転していてもよい。MG2回転数Nm2がシャフト回転数Nsよりも低回転とされることで、MG2回転数Nm2がシャフト回転数Nsと同回転数である場合よりも、引き摺り損失等の損失が低減される。なお、所定走行モードにおいて第二回転機MG2を回転させておく場合、第二回転機MG2を適宜力行あるいは回生させてもよい。
2 エンジン
5 シフトポジションセンサ
6 パーキング装置
10 遊星歯車機構
11 伝達経路
20 出力軸
24 駆動軸
25 駆動輪
40 制御部
100 車両制御装置
CL1 第一クラッチ
CL2 第二クラッチ
MG1 第一回転機
MG2 第二回転機(回転機)
Claims (5)
- エンジンと、
回転機と、
前記エンジンと駆動輪との動力の伝達経路と前記回転機との間に介在し、係合状態あるいは解放状態に任意に切り替え可能な第一クラッチと、
前記第一クラッチと並列に配置され、前記伝達経路と前記回転機との間に介在し、前記回転機の回転数に応じて係合状態あるいは解放状態に切り替え可能なワンウェイクラッチである第二クラッチと、
制御部と、
前記伝達経路の回転を規制するパーキング装置と、を備え、
前記制御部は、前記伝達経路に作用する捩れ荷重に応じて前記回転機あるいは前記第一クラッチの少なくともいずれか一方を制御して前記伝達経路の慣性を低減し、前記パーキング装置を解除する解除要求があった場合、前記パーキング装置が解除する前に、前記第二クラッチを解放する回転方向に前記回転機を回転させる
ことを特徴とする車両制御装置。 - エンジンと、
回転機と、
前記エンジンと駆動輪との動力の伝達経路と前記回転機との間に介在し、係合状態あるいは解放状態に任意に切り替え可能な第一クラッチと、
前記第一クラッチと並列に配置され、前記伝達経路と前記回転機との間に介在し、前記回転機の回転数に応じて係合状態あるいは解放状態に切り替え可能なワンウェイクラッチである第二クラッチと、
制御部と、
前記伝達経路の回転を規制するパーキング装置と、を備え、
前記制御部は、前記伝達経路に作用する捩れ荷重に応じて前記回転機あるいは前記第一クラッチの少なくともいずれか一方を制御して前記伝達経路と前記回転機との動力の伝達を遮断し、前記パーキング装置を解除する解除要求があった場合、前記パーキング装置が解除する前に、前記第二クラッチを解放する回転方向に前記回転機を回転させる
ことを特徴とする車両制御装置。 - 前記制御部は、前記パーキング装置を解除する解除要求があり、かつ車両が坂路に停車している場合に、前記第二クラッチを解放する回転方向に前記回転機を回転させる
請求項1または2に記載の車両制御装置。 - 前記制御部は、前記第二クラッチを解放する回転方向に前記回転機を回転させてから前記パーキング装置に対して解除指令を出力する
請求項1〜3のいずれか1項に記載の車両制御装置。 - 前記制御部は、車両が波状路を走行している場合、前記第一クラッチを解放する
請求項1〜4のいずれか1項に記載の車両制御装置。
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CN201580004464.2A CN105916718B (zh) | 2014-01-14 | 2015-01-13 | 车辆的控制器 |
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US10093287B2 (en) * | 2014-02-06 | 2018-10-09 | Ford Global Technologies, Llc | Transmission and method of engagement |
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FR3040159B1 (fr) * | 2015-08-18 | 2019-03-22 | Renault S.A.S | Procede de controle d'un groupe motopropulseur electrique ou hybride |
DE102015222692A1 (de) * | 2015-11-17 | 2017-05-18 | Volkswagen Aktiengesellschaft | Betreiben einer Antriebseinrichtung eines Hybridfahrzeuges und Hybridfahrzeug |
JP6613989B2 (ja) * | 2016-03-30 | 2019-12-04 | アイシン・エィ・ダブリュ株式会社 | 制御装置 |
JP2018169026A (ja) * | 2017-03-30 | 2018-11-01 | 本田技研工業株式会社 | 変速制御装置及びこれを備えた自動変速機 |
CN110945260B (zh) * | 2017-09-06 | 2021-05-14 | 优尼邦斯股份有限公司 | 离合器以及车辆的动力传递结构 |
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JP2003111205A (ja) | 2001-09-28 | 2003-04-11 | Honda Motor Co Ltd | ハイブリッド型車両の駆動力制御装置 |
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