Effect of in-wheel motor suspended configuration on ride comfort of electric vehicle under dual excitations

被引：0
|
作者：
Han Y. [1 ]
Li G. [1 ]
Chen T. [1 ]
机构：
[1] Transportation College, Shandong University of Science and Technology, Qingdao, 266000, Shandong
来源：
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2020年 / 52卷 / 09期
关键词：
Dual excitations; In-wheel motor (IWM); Optimization; Ride comfort; Suspended configuration;
D O I：
10.11918/201904235
中图分类号：
学科分类号：
摘要：
To solve the problem that the vertical negative effect of electric vehicles (EVs) is aggravated when added with in-wheel motor (IWM), the influence of different suspended configurations of IWM on vehicle vertical performance was studied under the coupling excitations of road excitation and motor vertical excitation. Effects of various configurations of EVs at home and abroad on ride comfort were comprehensively analyzed. The ride comfort of two schemes of IWM stator and whole motor suspended as dynamic absorber of vehicles was compared, and the computational model of dual excitations was built and used to select the optimal scheme. Then, by taking the minimum root mean square (RMS) value of vehicle ride comfort index as the optimization objective, NSGA-II algorithm was applied to optimize the stiffness and damping of rubber bushing of dynamic vibration absorber in the optimal scheme, and suitable configuration and matching parameters were obtained. At last, the optimized vehicle configuration was verified by simulation. Results show that the proposed two suspended schemes both alleviated the negative effects, while after the optimization of the selected whole motor suspended scheme, the acceleration of the vehicle body and the dynamic load of the tyre were reduced by 38.53% and 7.94% respectively. Simulation results verify that the optimized configuration and parameters under dual excitations reduced the vertical negative effect of EV driven by IWM and improved the vehicle ride comfort and safety. © 2020, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：193 / 200
页数：7
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