JP6852802B2 - ハイブリッド車両の制御方法および制御装置 - Google Patents
ハイブリッド車両の制御方法および制御装置 Download PDFInfo
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- JP6852802B2 JP6852802B2 JP2019547849A JP2019547849A JP6852802B2 JP 6852802 B2 JP6852802 B2 JP 6852802B2 JP 2019547849 A JP2019547849 A JP 2019547849A JP 2019547849 A JP2019547849 A JP 2019547849A JP 6852802 B2 JP6852802 B2 JP 6852802B2
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- Automation & Control Theory (AREA)
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Description
Claims (4)
- 理論空燃比を目標空燃比としたストイキ燃焼モードとリーン空燃比を目標空燃比としたリーン燃焼モードとに切換可能な内燃機関と、力行による上記内燃機関の動力のアシストが可能なモータと、を備えたハイブリッド車両の制御方法であって、
内燃機関のトルクおよび回転速度をパラメータとして、上記ストイキ燃焼モードとするストイキ燃焼運転領域と上記リーン燃焼モードとするリーン燃焼運転領域とを予め設定するとともに、
両運転領域の高トルク側の境界として、トルク上昇時にリーン燃焼モードからストイキ燃焼モードへの切換を行う第1の境界に比較して、トルク低下時にストイキ燃焼モードからリーン燃焼モードへの切換を行う第2の境界を低トルク側に設定し、
上記第2の境界を横切るストイキ燃焼運転領域からリーン燃焼運転領域への移行時には、燃焼モード切換後、切換に伴う吸気量変化の遅れに対し目標空燃比をリーン空燃比に維持するように燃料噴射量を減量補正するとともに、要求駆動力となるように上記モータによるアシストを行い、
上記モータの最大出力の範囲内で上記アシストが実行可能となるよう上記第2の境界を設定する、
ハイブリッド車両の制御方法。 - 上記モータとして、力行による上記内燃機関の動力のアシストと回生による上記内燃機関の動力の吸収とが可能なモータを用い、
上記ストイキ燃焼運転領域からリーン燃焼運転領域への移行時に、特定の条件下では、
燃焼モード切換に先行して目標吸気量をリーン空燃比に対応するように切り換えた後、吸気量変化の遅れの間、理論空燃比を目標空燃比として維持するように燃料噴射量を増量補正するとともに、要求駆動力となるように上記モータの回生を行う、請求項1に記載のハイブリッド車両の制御方法。 - 上記の特定の条件の1つは、上記モータの電源となるバッテリの充電状態が所定のレベル以下である、ことである請求項2に記載のハイブリッド車両の制御方法。
- 理論空燃比を目標空燃比としたストイキ燃焼モードとリーン空燃比を目標空燃比としたリーン燃焼モードとに切換可能な内燃機関と、
力行による上記内燃機関の動力のアシストが可能なモータと、
上記内燃機関および上記モータを制御するコントローラと、
を備え、
上記コントローラは、
内燃機関のトルクおよび回転速度をパラメータとして、上記ストイキ燃焼モードとするストイキ燃焼運転領域と上記リーン燃焼モードとするリーン燃焼運転領域とが予め設定された燃焼モード切換マップを有し、
この燃焼モード切換マップにおける両運転領域の高トルク側の境界は、トルク上昇時にリーン燃焼モードからストイキ燃焼モードへの切換を行う第1の境界と、上記第1の境界よりも低トルク側に設定されかつトルク低下時にストイキ燃焼モードからリーン燃焼モードへの切換を行う第2の境界と、を有し、
さらに上記コントローラは、上記第2の境界を横切るストイキ燃焼運転領域からリーン燃焼運転領域への移行時に、燃焼モード切換後、切換に伴う吸気量変化の遅れに対し目標空燃比をリーン空燃比に維持するように燃料噴射量を減量補正するとともに、要求駆動力となるように上記モータによるアシストを行い、ここで、上記第2の境界は、上記モータの最大出力の範囲内で上記アシストが実行可能となるよう設定されている、
ハイブリッド車両の制御装置。
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CN113859214B (zh) * | 2021-09-28 | 2023-03-14 | 清华大学 | 混合动力系统发动机动态能效控制方法及装置 |
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