To efficiently perform a catalyst warming-up operation in a short warming-up operation time while avoiding fuel consumption deterioration in cooling of an internal combustion engine 2 that drives a power generation motor generator 1 in a hybrid vehicle.SOLUTION: A controller 8 executes a warming-up operation until a prescribed catalyst warming-up completion state regardless of a power request in cooling of an internal combustion engine 2. The controller 8 obtains the combination of the output of the internal combustion engine 2 in the warming-up operation and combustion timing Mb50 that simultaneously satisfies the first restriction in which the SOC of a battery 5 reaches the prescribed upper limit SOC when reaching the catalyst warming-up completion state and the second restriction in which the increase in a fuel consumption amount by the warming-up operation is minimum, and performs the warming-up operation with the output and the combustion timing as a target output and target combustion timing.SELECTED DRAWING: Figure 1
【課題】ハイブリッド車両において発電用モータジェネレータ1を駆動する内燃機関2の冷機時に、燃料消費悪化を回避しつつ短い暖機運転時間で効率良く触媒暖機運転を行う。【解決手段】コントローラ8は、内燃機関2の冷機時に、電力要求によらずに所定の触媒暖機完了状態となるまで暖機運転を実行する。コントローラ8は、触媒暖機完了状態に達したときにバッテリ5のSOCが所定の上限SOCに到達するという第1の制約と、暖機運転による燃料消費量の増加が最小であるという第2の制約と、を同時に満たす、暖機運転中の内燃機関2の出力と燃焼タイミングMb50との組み合わせを求め、これらの出力と燃焼タイミングとを目標出力および目標燃焼タイミングとして暖機運転を行う。【選択図】図1
WARMING-UP CONTROL METHOD AND WARMING-UP CONTROL DEVICE OF HYBRID VEHICLE
ハイブリッド車両の暖機制御方法および暖機制御装置
2023-03-09
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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