JP6696282B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- JP6696282B2 JP6696282B2 JP2016082728A JP2016082728A JP6696282B2 JP 6696282 B2 JP6696282 B2 JP 6696282B2 JP 2016082728 A JP2016082728 A JP 2016082728A JP 2016082728 A JP2016082728 A JP 2016082728A JP 6696282 B2 JP6696282 B2 JP 6696282B2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
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- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Hybrid Electric Vehicles (AREA)
- Regulating Braking Force (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Transmission Device (AREA)
Description
図1に示す車両10において、エンジン11は、ガソリンや軽油等の燃料の燃焼により駆動される多気筒内燃機関であり、周知のとおり燃料噴射弁や点火装置等を適宜備えている。エンジン11には、電動機としてのISG13(Integrated Starter Generator)が一体に設けられており、ISG13の回転軸はエンジン出力軸12に対してベルト等により駆動連結されている。この場合、エンジン出力軸12の回転によってISG13の回転軸が回転する一方、ISG13の回転軸の回転によってエンジン出力軸12が回転する。つまり、ISG13は、エンジン出力軸12の回転により発電(回生発電)を行う発電機能と、エンジン出力軸12に回転力を付与する力行機能とを備えるものとなっている。エンジン始動時には、ISG13の回転によりエンジン11に初期回転(クランキング回転)が付与される。また、車両10の加速時には、ISG13による駆動力の付与が適宜実施される。
本実施形態では、惰性走行の解除直前に半クラッチ制御が実施されており、かつ惰性走行状態からアクセルオンに伴い当該惰性走行が解除される場合に、そのアクセルオン時において半クラッチ制御の終了後にクラッチ装置16に残存している残存係合度合に基づいて、ISG13の駆動力による加速アシストを実施することとしている。
図4のステップS39における加速アシスト処理を以下の図15のように実現してもよい。つまり、惰性走行の解除直後であって、かつアクセルオンに伴う加速要求が生じている場合に、図15の加速アシスト処理を実施する。
・上記実施形態では、ブレーキ操作情報として、ドライバによるブレーキ操作量(ブレーキペダル踏み込み量)を取得する構成としたが、これに代えて、ブレーキ操作情報としてブレーキ操作のオンオフ情報を取得する構成であってもよい。この場合、惰性走行中においてブレーキオン状態であることを条件に、クラッチ係合度合を所定値として半クラッチ制御を実施するとよい。
Claims (8)
- 走行駆動源としてのエンジン(11)と、該エンジンの出力軸(12)に繋がる動力伝達経路に設けられるクラッチ装置(16)と、車両の加速に用いられる駆動力を生じさせる電動機(13)とを備える車両(10)に適用され、
所定の実施条件の成立に応じて、前記クラッチ装置の操作により前記動力伝達経路の伝達動力を減少させて前記車両を惰性走行状態とし、惰性走行中において少なくともアクセル条件を含む所定の解除条件の成立に応じて、前記クラッチ装置の操作により惰性走行状態を解除する車両制御装置(31)であって、
前記車両が惰性走行状態であることを判定する走行判定部と、
惰性走行状態下において当該惰性走行の解除直前である場合に、前記クラッチ装置の係合度合を中間度合状態とする半クラッチ制御を実施するクラッチ制御部と、
惰性走行の解除直前に前記半クラッチ制御が実施されており、かつ惰性走行状態からアクセルオンに伴い当該惰性走行が解除される場合に、そのアクセルオン時において前記半クラッチ制御の終了後に前記クラッチ装置に残存している残存係合度合に基づいて、前記電動機の駆動力による加速アシストを実施する加速制御部と、
を備える車両制御装置。 - ドライバによるブレーキ操作情報を取得する取得部を備え、
前記クラッチ制御部は、惰性走行状態下において、前記取得部により取得したブレーキ操作情報に基づいて、前記クラッチ装置の係合度合を制御する請求項1に記載の車両制御装置。 - 前記取得部は、前記ブレーキ操作情報としてブレーキ操作量を取得し、
前記クラッチ制御部は、惰性走行状態下において、前記ブレーキ操作量が大きいほど、前記クラッチ装置の係合度合を大きくする請求項2に記載の車両制御装置。 - 前記クラッチ制御部により前記半クラッチ制御が実施されている場合に、ドライバのブレーキ操作量に応じて付与されるブレーキ装置(28)のブレーキ力を制限するブレーキ制御部を備える請求項1乃至3のいずれか1項に記載の車両制御装置。
- 惰性走行状態からアクセルオンに伴い当該惰性走行が解除される場合に、そのアクセルオン時におけるエンジン回転速度に基づいて、前記電動機の駆動力による加速アシストを実施する加速制御部を備える請求項1乃至4のいずれか1項に記載の車両制御装置。
- 惰性走行状態下において前記エンジンを停止させるようにした車両に適用され、
惰性走行状態からアクセルオンに伴い当該惰性走行が解除される場合に、そのアクセルオン時におけるエンジン回転速度が、燃料の燃焼による前記エンジンの再始動が可能な所定値よりも高回転であるか否かを判定する回転判定部と、
前記アクセルオン時のエンジン回転速度が前記所定値よりも高回転であると判定された場合に、前記電動機の駆動力を用いず前記エンジンの燃焼開始により当該エンジンを再始動させ、前記アクセルオン時のエンジン回転速度が前記所定値よりも低回転であると判定された場合に、前記電動機の駆動力と前記エンジンの燃焼開始により当該エンジンを再始動させる始動制御部を備える請求項1乃至5のいずれか1項に記載の車両制御装置。 - 惰性走行状態からアクセルオンに伴い当該惰性走行が解除される場合に、そのアクセルオンに伴う加速要求の度合に基づいて、前記電動機の駆動力による加速アシストを実施する加速制御部を備える請求項1乃至6のいずれか1項に記載の車両制御装置。
- 前記クラッチ装置の温度が所定の高温域にあるか否かを判定する温度判定部を備え、
前記クラッチ制御部は、前記クラッチ装置の温度が前記高温域にあると判定された場合に、前記半クラッチ制御において前記クラッチ装置を中間度合状態とすることを禁止する請求項1乃至7のいずれか1項に記載の車両制御装置。
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