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高速履帶車輛靜液傳動(dòng)改進(jìn)模糊控制
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Control of High Speed Tracked Vehicle Hydrostatic Transmission
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    摘要:

    針對(duì)高速履帶車輛靜液傳動(dòng)系統(tǒng)具有非線性及時(shí)變負(fù)載等特點(diǎn)，設(shè)計(jì)了應(yīng)用于該傳動(dòng)系統(tǒng)的模糊控制器，因系統(tǒng)響應(yīng)在上升和穩(wěn)定階段對(duì)模糊控制器的比例因子有不同的要求，定比例因子的模糊控制器難以二者兼顧，故提出一種改進(jìn)方法，以補(bǔ)償量及其絕對(duì)值的乘積作為新的補(bǔ)償量對(duì)系統(tǒng)進(jìn)行控制，構(gòu)成變比例因子的模糊控制器。仿真及試驗(yàn)表明，改進(jìn)的模糊控制器響應(yīng)迅速，能有效抑制系統(tǒng)超調(diào)量，且系統(tǒng)的動(dòng)態(tài)和靜態(tài)性能有明顯改善，適用于高速履帶車輛的靜液傳動(dòng)控制。

    Abstract:

    It is difficult to formulate exact mathematical model of hydrostatic transmission due to nonlinear and time-varying characteristic, thus fuzzy control was performed to the system. To improve the traditional fuzzy controllers, a novel fuzzy control scheme was studied. By generating a new compensation amount with the product of original one and its absolute value, a fuzzy controller with variable scale factor was formed. The simulation and test results showed that the new controller can achieve high speediness response, restrain the overshoot effectively and obviously improve the dynamic and static characteristics of the system. It is suitable for the high speed tracked vehicle hydrostatic transmission.

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陳寶瑞,馬彪,李和言,楊磊.高速履帶車輛靜液傳動(dòng)改進(jìn)模糊控制[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(11):18-21. Control of High Speed Tracked Vehicle Hydrostatic Transmission[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(11):18-21.

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