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基于相平面法的制动方向稳定性分析 被引量:8

An Analysis on Braking Directional Stability Based on Phase-plane Technique
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摘要 基于7自由度车辆动力学仿真模型,利用β相平面鞍点位于稳定域和非稳定域的分界处和初始稳定相点集合对应稳定域的性质,确定了稳定域边界函数,而将能量相平面方法应用于制动方向稳定性分析。对典型转向制动工况下有/无ABS时的方向稳定性进行仿真,结果表明采用β相平面和能量相平面可定量评价制动方向稳定性。 Based on 7 DOF vehicle dynamics model and utilizing the properties that the saddle points of βphase-plane are located on the boundary between stable and unstable regions and the initial stable phase points set correspond to stability region,the boundary function of stable region is determined and the technique of energy phase plane is applied to the analysis on braking directional stability. A simulation on directional stability in a typical condition of braking in a turn with and without ABS is conducted. The results show that the use of β and energy phase-planes can quantitatively evaluate the braking directional stability of vehicle.
出处 《汽车工程》 EI CSCD 北大核心 2014年第8期974-979,共6页 Automotive Engineering
基金 长江学者和创新团队发展计划项目(IRT1017) 新世纪优秀人才支持计划项目(NCET-09-0421) 国家自然科学基金(50805063,51275206)资助
关键词 制动方向稳定性 相平面 边界函数 制动防抱死系统 仿真 braking directional stability phase-plane boundary function ABS simulation
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参考文献11

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