Electrical vehicles are equipped with battery packs to provide energy to the electrical motor of the electrical vehicle, as well as to auxiliary functionalities containing an electrical actuator requiring energy for its operation. A disadvantage of the current electrical vehicles is that they are either limited in performance or in range. Both are improved with a battery system according to the invention. A battery system (100) comprising: a fixed battery pack (110) arranged for electrically powering a propulsion system of an electrical vehicle, and comprising a set of terminals (111, 112) for electrically connecting the fixed battery pack; a battery bay (120, 130) having an electrical connector for receiving and connecting to a removable battery pack comprising a set of terminals (121, 122, 131, 132) for electrically connecting the removable battery pack; an electrical adapter (140) arranged for electrically connecting the removable battery pack and the fixed battery pack via the respective terminals; and a system controller (150) arranged for the steps of: obtaining (210) a fixed state indicator based on a state of charge of the fixed battery pack and/or a terminal voltage of the fixed battery pack; receiving (220) a presence indicator indicating presence of a removable battery pack in the battery bay; obtaining (230) a removable state indicator based on a state of charge of the removable battery pack and/or a terminal voltage of the removable battery pack; determining (240) if charge of the removable battery pack is to be provided to the fixed battery pack and/or the propulsion system based on the fixed state indicator and/or the removable state indicator; and controlling (250) the electrical adapter to transfer charge from the removable battery pack to the fixed battery pack and/or the propulsion system, wherein the current from the removable battery pack is lower than the peak current required for the propulsion system.


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    Title :

    BATTERY ARRANGEMENT FOR ELECTRICAL VEHICLES


    Additional title:

    BATTERIEANORDNUNG FÜR ELEKTRISCHE FAHRZEUGE
    DISPOSITION DES BATTERIES POUR LES VÉHICULES ÉLECTRIQUES


    Contributors:

    Publication date :

    2021-05-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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