A method for controlling a hybrid electric vehicle includes selecting a first target engine speed in response to a driver power request, calculating an available engine torque at the first target engine speed, adjusting the target engine speed if the available engine torque is insufficient to satisfy the driver power request, and commanding an engine to run at the target engine speed. The first target engine speed is optimized for fuel economy. The calculated available engine torque is less than a calculated maximum engine torque at the target engine speed, such that a torque reserve is maintained for engine vacuum.


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    Title :

    Altitude compensation for target engine speed in hybrid electric vehicle


    Contributors:

    Publication date :

    2019-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



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