Recent electric vehicle studies in literature utilize electric motors within an anti-lock braking system, traction-control system, and/or vehicle-stability controller scheme. Electric motors are used as hub motors, on-board motors, or axle motors prior to the differential. This has led to the need for comparing these different drivetrain architectures with each other from a vehicle dynamics standpoint. With this background in place, using MATLAB simulations, these three drivetrain architectures are compared with each other in this study. In anti-lock braking system and vehicle-stability controller simulations, different control approaches are utilized to blend the electric motor torque with hydraulic brake torque; motor ABS, torque decomposition, and optimal slip-tracking control strategies. The results for the anti-lock braking system simulations can be summarized as follows: (1) Motor ABS strategy improves the stopping distance compared to the standard anti-lock braking system. (2) In case the motors are not solely capable of providing the required braking torque, torque decomposition strategy becomes a good solution. (3) Optimal slip-tracking control strategy improves the stopping distance remarkably compared to the standard anti-lock braking system, motor anti-lock braking system, and torque decomposition strategies for all architectures. The vehicle-stability controller simulation results can be summarized as follows: (1) higher affective wheel inertia of the on-board and hub motor architecture dictates a higher need of wheel torque in order to generate the tire force required for the desired yaw rate tracking. A higher level of torque causes a higher level of tire slip. (2) Optimal slip-tracking control strategy reduces the tire slip trends drastically and distributes the traction/braking action to each tire with the control-allocation algorithm specifying the reference slip values. This reduces reference tire slip-tracking error and reduces vehicle sideslip angle. (3) Tire slip trends are lower with the hub motor architecture, compared to the other architectures, due to more precise slip control.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance comparison of electric-vehicle drivetrain architectures from a vehicle dynamics perspective


    Contributors:


    Publication date :

    2020-03-01


    Size :

    21 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Electric vehicle drivetrain optimisation

    Eckert, Jony J. / Silva, Ludmila C.A. / Costa, Eduardo S. et al. | IET | 2017

    Free access

    Transmission, hybrid drivetrain and drivetrain for an electric vehicle

    ZIEMER PETER / KUBERCZYK RAFFAEL / SIBLA CHRISTIAN et al. | European Patent Office | 2019

    Free access

    Transmission, Hybrid Drivetrain and Drivetrain for an Electric Vehicle

    ZIEMER PETER / KUBERCZYK RAFFAEL / SIBLA CHRISTIAN et al. | European Patent Office | 2016

    Free access

    Electric drivetrain for motor vehicle

    MAUREL HERVE / BOIDIN GUILLAUME / CHOLVY PIERRE et al. | European Patent Office | 2023

    Free access

    Transmission, hybrid drivetrain and drivetrain for an electric vehicle

    ZIEMER PETER / KUBERCZYK RAFFAEL / SIBLA CHRISTIAN et al. | European Patent Office | 2018

    Free access