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極限工況下汽車穩(wěn)定性的最優(yōu)保性能控制
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    摘要:

    考慮輪胎側(cè)偏剛度參數(shù)的不確定性,建立了用于控制器設(shè)計(jì)的線性參數(shù)不確定性車輛模型。在分析現(xiàn)有的汽車操縱穩(wěn)定性控制策略特點(diǎn)的基礎(chǔ)上,提出了二次最優(yōu)保性能汽車穩(wěn)定性控制方案;基于模型跟蹤控制技術(shù)和參數(shù)不確定性車輛模型推導(dǎo)了汽車穩(wěn)定性二次最優(yōu)保性能控制器。仿真結(jié)果表明,與傳統(tǒng)二次最優(yōu)控制相比,最優(yōu)保性能控制方案在保證系統(tǒng)穩(wěn)定性和魯棒性的同時(shí)可以獲得更小的質(zhì)心側(cè)偏角和更好的橫擺響應(yīng)。

    Abstract:

    Considering the uncertain characteristic of the tire cornering stiffness, a linear parametric uncertainty vehicle model was developed for designing the controller. An optimal guaranteed cost control scheme was proposed on the basis of an analysis of the existing strategies for vehicle handling and stability control. An optimal guaranteed cost controller for the vehicle stability was developed based on model-following technique and the vehicle model with parametric uncertainties. Some simulations have been carried out, and the result demonstrated that the optimal guaranteed cost control scheme could not only keep the system stable but also obtain a much smaller slip angle and have much better yaw rate response.

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楊秀建,王增才,路玉峰,彭偉利.極限工況下汽車穩(wěn)定性的最優(yōu)保性能控制[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(6):38-41.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(6):38-41.

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