基于模糊控制的EPS車(chē)輛操縱穩定性研究

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基于模糊控制的EPS車(chē)輛操縱穩定性研究
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作者單位:(江蘇理工學(xué)院 汽車(chē)與交通工程學(xué)院,江蘇 常州 213001)
作者簡(jiǎn)介:袁傳義(1976-),男,安徽壽縣人,博士,講師,主要從事車(chē)輛動(dòng)態(tài)性能模擬與控制方向的研究。 [FQ)]
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中圖分類(lèi)號:U463
基金項目:江蘇省自然科學(xué)基金(BK2012586)；江蘇省六大人才高峰資助項目(ZBZZ-023)；江蘇省高校自然科學(xué)基金(11KJB580001)。

Research on Vehicle Handling and Stability with EPS Based on Fuzzy Control

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(School of Automobile and Traffic Engineering, Jiangsu University of Technology, Changzhou 213001, China)

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摘要:

電動(dòng)助力轉向系統(EPS)通過(guò)電動(dòng)機提供助力轉矩,協(xié)助駕駛員進(jìn)行轉向操縱;在EPS動(dòng)力學(xué)分析的基礎上,建立了EPS和汽車(chē)二自由度動(dòng)力學(xué)模型,設計了基于模糊控制理論的EPS控制系統及其控制策略,在Simulink中搭建EPS及其模糊控制系統模型,得到汽車(chē)車(chē)身側偏角和橫擺角速度仿真結果;計算結果表明,與無(wú)助力的機械式轉向系統相比,裝備EPS的車(chē)輛車(chē)身側偏角的峰值和標準差分別減少了18.8%和19.1%,具有更好的汽車(chē)操縱穩定性。

Abstract:

The torque was provided by the electric motor of electric power steering system (EPS) to assist driver steering. EPS and vehicle two degrees of freedom dynamic model were established on the basis of kinetic analysis of EPS, EPS control system based on fuzzy control theory and its control strategy were disigned. The EPS and its fuzzy control system model were established in simulink, vehicle body side slip angle and yaw rate graphics were obtained. The simulation analysis showed that, peak and standard deviation vehicle side slip angle were decreased by 18.8% and 19.1%, vehicle handling and stability were improved significantly by EPS compared with the mechanical steering systems.

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袁傳義,貝紹軼,劉成曄,黃學(xué)勤.基于模糊控制的EPS車(chē)輛操縱穩定性研究計算機測量與控制[J].,2014,22(5):1647-1649.

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收稿日期:2014-01-11
最后修改日期:2014-02-21
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在線(xiàn)發(fā)布日期: 2014-12-16
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