In order to solve the problems of insufficient accuracy for theoretical models and data-driven models for objective drivability evaluation requiring a large amount of data, an objective drivability evaluation method based on a hierarchical mixture model is proposed. First, a novel method of constructing a drivability evaluation system is developed, which combined by work breakdown structure (WBS) and analytic hierarchy process (AHP). Then, downshift condition is taken as a case study, and the subdivision condition is identified based on the hybrid mixture model. What's more, the drivability evaluation indexes of downshift condition are analyzed to establish the evaluation system of drivability. Finally, combined with the real road test, the comprehensive weighting method is used to construct the downshift drivability evaluation model, in which the subjective weight is determined by the fuzzy AHP, and the objective weight is determined by criteria improved through inter-criteria correlation (CRITIC) method. The test results show that the evaluation method proposed in this paper has good reliability and provides effective guidance for the objective drivability evaluation of passenger cars.The evaluation system proposed in this paper can be extended to other conditions of vehicle drivability evaluation, including engine start conditions, static shift conditions, idling conditions, crawling conditions, starting conditions, Tip in/Tip out conditions, upshifts conditions and shutoff conditions. At the same time, the subjective and objective weight determination methods proposed in this paper can provide certain theoretical support for evaluation, classification and decision-making.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Evaluation of Objective Drivability for Passenger Cars Based on Hierarchical Mixture Model: A Case Study of Downshift Condition


    Additional title:

    Sae Technical Papers


    Contributors:
    Zhang, Chengcai (author) / Xia, Jialei (author) / Yan, Jun (author) / Zhou, Wei (author) / Pei, Xiaofei (author) / Guo, Xuexun (author)

    Conference:

    SAE WCX Digital Summit ; 2021



    Publication date :

    2021-04-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Objective Drivability Evaluation on Compact SUV and Comparison with Subjective Drivability

    Kurella, Chaitanya / Chandrasekaran, Krishnaraj / Lebbai, Mohamed noohu et al. | SAE Technical Papers | 2017


    Experimental Study on Drivability of Passenger Car with DCT Based on the Data-Driven Objective Evaluation Model

    Xia, Jialei / Guo, Xuexun / Zhou, Wei et al. | British Library Conference Proceedings | 2021


    Effects of gasoline properties and oxygenates on drivability of passenger cars

    Tanaka, S. / Hozumi, A. / Miyamoto, K. et al. | British Library Conference Proceedings | 2005


    Research on Objective Drivability Evaluation with Multi-Source Information Fusion for Passenger Car

    Xia, Jialei / Yan, Jun / Zhou, Wei et al. | SAE Technical Papers | 2020