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《Modular Machine Tool & Automatic Manufacturing Technique》 2011-09
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Theory Analysis of Shift Optimization Strategy for Mechanical Transmission

LIU Hai-ming1,HUANG Shuang-gen2,HUANG Da-xing3(1.Heyuan Polytechnic,Heyuan 517000,China;2.Jiangxi Agricultural University school of Vocational and Technical,Nanchang 330045,China)  
The powerful and energy-saving machinery are widely used in modern mechanical products as to the high transmission efficiency of mechanical transmission,and which promote the rapid development of the current mechanization.The methods of establishing the engine model are discussed through the analysis of engine universal properties based on the requirements of the power and fuel economy performance,the mathematical equations of the engine characteristics are established using surface fitting method,and the engine characteristics curves based on fuel consumption ratio are draw using MATLAB tool.Through the analysis of mechanical dynamic performance,the optimization method of mechanical transmission shift is studied based on the vehicle dynamics equations,the shift time curve of the best power performance is draw,and the shift optimization strategy is proposed.The fuel economy calculation method is analyzed using internal combustion engine theory,the engine characteristic curve based on throttle opening is draw,and the model of optimal fuel economy shift point is established and the shift optimization strategy is proposed.
【Fund】: 江苏省汽车工程重点实验室开放基金项目(QC200804);; 韶关学院科研项目(200915004);; 江西农业大学青年基金项目(200985)
【CateGory Index】: TH132.46
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