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中文摘要：
针对分布式驱动电动汽车存在转矩波动和非簧载质量增加的问题,建立了整车刚柔耦合多体系统模型,同时考虑永磁同步电机磁场的非正弦分布,建立了相应的Matlab/Simulink模型,并利用两者联合仿真模型研究了转矩波动及非簧载质量对电动汽车舒适性的影响规律。基于响应面近似模型,利用多目标优化方法对车辆舒适性进行了稳健性优化。结果表明,优化后不仅提高了车辆的舒适性,同时也提高了车辆的可靠性。
英文摘要：
For the problem of torque fluctuation and increased unsprung mass in distributed-drive electric vehicle, a vehicle rigid-flexible coupling model is established. Then in consideration of the non-sinusoidal distribution of magnetic field of permanent magnet synchronous motor, a Matlab/Simulink simulation model is established, which is used to study the effect law of torque fluctuation and unsprung mass on electric vehicle＇s ride comfort. Based on the response surface approximation model, robust optimization is made to vehicle comfort with the multi- objective optimization method. The results show that after optimization, both the car＇s ride comfort and reliability are improved.
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