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基于懸架效用函數(shù)的車身姿態(tài)控制
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國家自然科學基金資助項目(50875112);江蘇省自然科學基金資助項目(BK2010337);江蘇省普通高校研究生科研創(chuàng)新計劃項目（CX10B_253Z);高等學校博士學科點專項科研基金資助項目（2009322711013）;江蘇省高校自然科學研究重大項目（09KJA580001）


Body Posture Control Based on Suspension Utility Function
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    摘要:

    為了研究懸架控制對車身運動姿態(tài)的影響,，運用八板塊假說對整車模型進行分析，提出了構造懸架效用函數(shù)的方法,，并且給出了基于熵值法優(yōu)化權值方法,，設計出相應的Simulink控制器,；以某車型為例建立整車多體動力學模型，進行了脈沖路面和蛇形道路下不同車速工況的SIMPACK/Matlab聯(lián)合仿真,將基于懸架效用函數(shù)優(yōu)化的模糊控制和現(xiàn)有其他控制方法的懸架減振效果進行了對比分析,；理論分析和仿真試驗證明,，基于懸架效用函數(shù)優(yōu)化的模糊控制是可行的，較好地改善了車輛的平順性,，并能有效抑制車身俯仰和側(cè)傾運動,。

    Abstract:

    In order to study the influence of body posture interdependency on suspension control, the model of full vehicle using eight schematic of vehicle plate was analyzed. An approach based on the suspension utility function and a weighted optimization algorithm based on entropy value was presented. A kind of control strategy used in Simulink was designed. Meantime, taking a certain vehicle as an example, a whole multi-body model of vehicle was built. The SIMPACK/Matlab co-simulation in different vehicle speeds under impulse road and snakelike road was tested respectively. Then, the effects of semi-active suspension with fuzzy logical of optimal suspension utility function and other controls were compared. Theoretical analysis and simulation experiment showed that semi-active suspension controlled with fuzzy logical of optimal suspension utility function was practicable. It could improve ride comfort and restrain pitch and roll motion.

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陳龍,黃晨,江浩斌,陳蓉蓉.基于懸架效用函數(shù)的車身姿態(tài)控制[J].農(nóng)業(yè)機械學報,2011,42(8):15-19,25. Chen Long, Huang Chen, Jiang Haobin, Chen Rongrong. Body Posture Control Based on Suspension Utility Function[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(8):15-19,25.

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