The invention relates to a method for operating a preferably serial hydraulic hybrid drive system (1), comprising an internal combustion engine (8), a first expulsion machine (11), a second expulsion machine (12), a pressure accumulator (20) and an isolating valve device (30). For the purpose of optimization it is proposed that for various operating modes in each case a total efficiency level is read out from characteristic maps. These total efficiency levels are compared with one another. The operating mode with the best total efficiency level is subsequently selected.


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    Title :

    Method for operating a serial hydraulic hybrid drive system


    Contributors:

    Publication date :

    2015-07-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



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