[Objective] The increasing use of fully automated driving and high-redundancy technologies in urban rail transit vehicles (hereinafter referred to as ′metro′) leads to the increase of on-board device amount to varying degrees, resulting in the increasing mass of metro vehicles. Additionally, due to the significant overall transport capacity of metro vehicles, their overall energy consumption remains at a higher level. Therefore, it is necessary to study the light-weighting and energy-saving technologies for metro vehicles. [Method] Measures for reducing the weight of carbody, traction and auxiliary power systems, bogies and braking systems, air-conditioning and door systems, couplers and gangways, as well as vehicle interior and compartment equipment, are introduced. Energy-saving measures for the traction and auxiliary power systems, air-conditioning system, and lighting system are presented respectively. [Result & Conclusion] Feasible light-weighting measures include adopting a full aluminum carbody structure for , utilizing permanent magnet synchronous motors for the traction system, employing high-frequency auxiliary inverters for auxiliary power system, implementing high-frequency soft-switching design for chargers, adopting light-weighting design for bogies, modular design for braking system, and new material for interior and compartment equipment. Available energy-saving measures include the adoption of permanent magnet synchronous motor in traction system, the application of high-frequency topological structure for auxiliary power system, the use of frequency converter technology for air-conditioning system, and OLED (organic light-emitting diode) light sources for lighting system. By implementing the described light-weighting and energy-saving measures, the target of vehicle overall light-weighting by over 10% and achieving energy-saving of over 10% can be effectively realized.


    Access

    Download


    Export, share and cite



    Title :

    Urban Rail Transit Vehicle Light-weighting and Energy-saving Technologies


    Contributors:
    Chengpeng CAO (author) / Juncai YAN (author) / Xingjia WANG (author)


    Publication date :

    2024




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    URBAN RAIL TRANSIT VEHICLE

    SUN BANGCHENG / HUANG LIEWEI / LI MINGGAO et al. | European Patent Office | 2017

    Free access

    Urban rail transit vehicle bogie

    LAI ZHENYOU | European Patent Office | 2020

    Free access


    Thinking of Comprehensive Energy-Saving System Construction for Urban Rail Transit

    Liang, J.K. / Liu, Z.G. / Huang, Y.C. | British Library Conference Proceedings | 2014


    Energy Saving Analysis for Permanent Magnet Traction System in Urban Rail Transit

    Gengyu, Li / Yan, Li / Shifeng, Wang et al. | Springer Verlag | 2023