| The rapid development of science and technology can not stop the world's natural disasters occur frequently. Environmental degradation result of global hidden trouble more and more serious. For posterity survival and social harmony development, people pay more attention to saving energy and protecting environment. As one of the pillar industries of the national, automotive industry should set the example, developed low energy consumption, low emissions, to meet all kinds of performance requirements of new vehicles. The prominent advantage of hybrid vehicles have been attracted much attention by people. Hydraulic hybrid vehicles fitted with a hydraulic drive system on the original car transmission system. According to the demands of vehicle, two sources of power distribute the output energy, and distribution of the energy need to realize by coupling transmission mechanism.The design of dynamic coupling transmission mechanism directly related to the vehicle's power, fuel economy and comfort and so on. Reliable power coupling system is to play the good performance of the core of car parts. However, from an economic point of view, the pursuit of high reliability, the manufacturing costs inevitable increased, so, in order to achieve a reasonable match with the economy and efficiency, must be considered, optimization, reliability of optimization design for the coupler.In consulting a large number of the basis of relevant literature at home and abroad, this article summarizes the research situation of coupling drive system reliability optimization design. Analysis of the coupled system coordinate manner and according to design requirements and characteristics of planetary gear transmission, design a coupling transmission system match pattern. In structural design, simultaneously reliability optimization design, through the reliability optimization design optimizing institutional structure. This article is based on the coupling body the smallest, lightest, and to drive more smoothly as the goal, as one of the constraints of reliability, with the parts of coupler coordination and functional requirements, using Matlab toolbox for the gears, shafts and spline optimization of reliability of the coupler. According to the optimization results, using of CATIA and AutoCAD draw a three-dimensional structure and two-dimensional Engineering drawings of the coupler. Finally, this paper also developed a Matlab and VB integration program, designed the coupler transmission system reliability optimization design for the subsequent man-machine interface, for subsequent coupling system design provides a visual window. |
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