混合動力汽車行星機構(gòu)動力耦合器控制策略仿真

doi:10.3969/j.issn.1000-1298.[year].[issue].[sequence]

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混合動力汽車行星機構(gòu)動力耦合器控制策略仿真
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                        10.3969/j.issn.1000-1298.[year].3.[sequence]
                    
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摘要:

行星機構(gòu)動力耦合器通過一組離合器的結(jié)合、分離實現(xiàn)混合動力汽車的各種驅(qū)動模式,。運用虛擬杠桿法分析了行星機構(gòu)動力耦合器的轉(zhuǎn)速合成特性和轉(zhuǎn)矩合成特性。為滿足驅(qū)動模式切換過程的動態(tài)特性及離合器結(jié)合平順的要求,，研究了動力耦合器的模糊控制策略,。該策略以加速踏板行程和踏板行程變化率為模糊輸入量，得到的輸出量為離合器結(jié)合的初始壓力和結(jié)合時壓力變化率。建立了動力耦合器的仿真模型，仿真結(jié)果表明該模糊控制策略既能反映駕駛員的操作意圖,，又能滿足車輛的動力性和平順性的要求。

Abstract:

The principle of coupler with planetary mechanism was elaborated. The coupler can decide the HEV driving mode through a set of clutches engaging and disengaging. The rotation and torque composition of coupler was analyzed through the means of virtual level. The fuzzy algorithm was proposed to control the clutches for desired transient and smooth performance. The acceleration pedal travel and its change rate were used as input, and the output were clutches initial pressure and the change rate of engaging pressure. The simulation model of the coupler with planetary mechanism was established finally. The simulation results showed that this control strategy could meet the driver operating demands, increase HEV speed and switch driving mode smoothly under different driving conditions. 

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鄒乃威,劉金剛,周云山,張友坤,黃偉,蔡源春.混合動力汽車行星機構(gòu)動力耦合器控制策略仿真[J].農(nóng)業(yè)機械學(xué)報,2008,39(3):5-9.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(3):5-9.

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