The performance of high voltage batteries is the key factor for further success of electric vehicles. The primary areas for battery development include high voltage (HV) and functional safety, maximum power and usable energy, battery life, packaging and weight reduction.This paper explains the development of the HV battery and the battery management system for the FEV Liona fleet, a retrofit of a pure electric powertrain into a FIAT 500. The multi-disciplinary process used to develop this program includes electrical, mechanical and functional aspects.The layout of the electrical system includes cell selection, layout of modules and the interconnection of twelve modules to a battery pack. The mechanical design of mounting the battery under the floor addresses the housing issues regarding robustness and sealing, the packaging into the vehicle as well as the positioning of the HV components inside the battery. The key functional aspects include safety-relevant functionalities, such as isolation monitoring or emergency disconnect. Additional functions of the battery controller include cell balancing, charging and secure communication with other vehicle controllers.The fleet tests conducted as a part of this program provided valuable bench and performance data for analyzing the battery and its components.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Traction Battery and Battery Control Unit Development


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2012 World Congress & Exhibition ; 2012



    Publication date :

    2012-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Traction battery and battery control unit development

    Ogrzewalla,J. / FEV Motorentechnik,Aachen,DE | Automotive engineering | 2012


    Traction Battery and Battery Control Unit Development

    Ogrzewalla, J. / Society of Automotive Engineers | British Library Conference Proceedings | 2012


    Assembly for a Traction Battery With a Protective Unit, Traction Battery and Motor Vehicle

    HABERL SIMON / HARSCH THOMAS / TENFELDE FRANK | European Patent Office | 2023

    Free access

    TRACTION BATTERY

    ERLACHER MANUEL | European Patent Office | 2019

    Free access

    Traction battery discharge control

    GIBEAU JOHN PAUL | European Patent Office | 2015

    Free access