This paper presents a novel method for optimal sizing of traction motors based on vehicle level targets. The method employs a scalable electric machine model inside the multiobjective optimization (MOO) algorithm. A reference motor geometry is scaled in axial and radial directions in the optimization routines according to the values of the design variables. The optimization candidates are the scaled versions of the reference motor and their performance is evaluated using the computationally inexpensive scalable electric machine model. The approach is demonstrated on a vehicle comprising in-wheel motors. The design variables are the rated torque and the base speed of the motor while the considered vehicle level design objectives are the maximization of driving performance and the minimization of energy consumption and unsprung mass. MOO approach considers the objective functions simultaneously and derives the Pareto-optimal solutions in both the objective functions and the design variables domains. The analysis is repeated with New European Driving Cycle and the Worldwide Harmonized Light Vehicles Test Procedure to present the influence of driving pattern on the optimization results.


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    Title :

    Optimal Sizing of Traction Motors Using Scalable Electric Machine Model




    Publication date :

    2018-03-01


    Size :

    3950815 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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