PROBLEM TO BE SOLVED: To provide a hybrid-vehicular internal combustion engine start control apparatus capable of suppressing deterioration of fuel economy by selecting a transmission ratio with high transmission efficiency without allowing a specific component of emission to exceed a limit when cold-starting the internal combustion engine.SOLUTION: An internal combustion engine start control apparatus performs: determining a change amount of an operation point of an internal combustion engine 2 at a start on the basis of an engine temperature and required torque so that a PN that is a specific component of emission of the internal combustion engine does not exceed a limit; selecting, from among plural transmission stages of an automatic transmission 10, a transmission stage that yields the best integrated transmission efficiency that is produced by integrating respective transmission efficiency of the automatic transmission 10 and a power division mechanism 5 after changing the operation point; and changing to the selected transmission stage before starting the internal combustion engine 2.SELECTED DRAWING: Figure 1
【課題】内燃機関の低温の始動時にエミッションの特定成分が限界を超えることなく伝達効率の高い変速比を選択して燃費悪化を抑制できるハイブリッド車両の内燃機関始動制御装置を提供する。【解決手段】内燃機関始動制御装置は、内燃機関2の始動時における動作点の変更量を、内燃機関のエミッションの特定成分であるPNが限界を超えないように機関温度及び要求トルクに基づいて決定し、自動変速機10の複数の変速段の中から、動作点の変更後に動力分割機構5及び自動変速機10の各伝達効率を合成した合成伝達効率が最良となる変速段を選択し、その選択された変速段へ内燃機関2の始動前に変更する。【選択図】図1
HYBRID-VEHICULAR INTERNAL COMBUSTION ENGINE START CONTROL APPARATUS
ハイブリッド車両の内燃機関始動制御装置
2016-04-04
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
HYBRID VEHICULAR ENGINE START CONTROL APPARATUS AND START CONTROL METHOD
European Patent Office | 2019
|HYBRID VEHICULAR ENGINE START CONTROL APPARATUS AND START CONTROL METHOD
European Patent Office | 2019
|