In present commercial vehicles, the cranking torque required for a heavy duty compression ignition engine is very high. This results in higher durability and reliability requirement of cranking system components and also makes it cumbersome to implement start-stop micro hybrid feature which requires more number of cranking cycles in lifetime. Hence higher capacity starter motor and battery is being used for implementing start-stop feature. However this would result in cost and packaging issues. In order to implement start-stop feature maintaining the same starter motor and battery capacity, the cranking energy demand of the engine needs to be reduced. Studies conducted shows that the major source of breakaway torque is the work done in compression stroke during a starting cycle. Hence the concept of decompression which is used only in smaller capacity engines at present was benchmarked and modified to create an energy venting actuator for a heavy duty 4 cylinder engine which would release the compression pressure momentarily during starting. The cranking torque requirement for the engine was analyzed with and without the decompression device and an experimental reduction of 29% in starting current requirement was obtained.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Reducing Starting Current for Existing Commercial Vehicle Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Symposium on International Automotive Technology 2015 ; 2015



    Publication date :

    2015-01-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Reducing Starting Current for Existing Commercial Vehicle Engines

    Gurusamy, S.K. / Rajagopalan, C. / Kumar, R.S. et al. | British Library Conference Proceedings | 2015



    Remote starting of engines via vehicle keypads

    European Patent Office | 2018

    Free access

    REMOTE STARTING OF ENGINES VIA VEHICLE KEYPADS

    ELANGOVAN VIVEKANANDH / VAN WIEMEERSCH JOHN ROBERT / KING DANIEL M et al. | European Patent Office | 2018

    Free access

    Remote starting of engines via vehicle keypads

    ELANGOVAN VIVEKANANDH / VAN WIEMEERSCH JOHN ROBERT / KING DANIEL M et al. | European Patent Office | 2019

    Free access