The Study Of The Limited Slip Differential Based On TRIZ

With the era of knowledge economy accelerating and global economic integrationprocess， enterprises in the increasingly fierce market competition environment， take theroad of independent innovation is the inevitable choice for enterprises. Rational use of TRIZcan greatly facilitate business and engineering and technical personnel to grasp the laws ofscience inventions， product innovation to solve the conflict.This paper describes the current research on technology and automobile differentialtheory of TRIZ. Through the history of ordinary symmetrical bevel gear differentialsummarize its review， to understand the evolution of different forms and at different times，the differential. On this basis， the use of technical systems evolution of TRIZ principle beanalyzed by the relevant patent survey summary， draw the number of patents， patentlevel， performance three curves， and technical systems evolution curve to match thegeneral pattern matching， results in differential levels of development of China’s currentforecast to continue its innovative design.Secondly， the principles of the common symmetric differential and limited slipdifferential principle analysis， functional analysis using TRIZ theory to establish thefunctional model，find out the insufficiency and harmful functions，using the contradictionmatrix of TRIZ and40Article inventive principles， combined with product design theoryproposed solutions. Machine learning parameters of a small car designed a differential，according to the given parameters of a sedan vehicle， combined with a planetary geardifferential symmetrical cone design theory， this car matches the differential gear designcalculation， the basic parameters of the geometry and parameters calculated by the basicparameters and then use it in the form of the powerful features of three-dimensional surfacesCATIA software to use differential straight bevel gears for spherical involute way， wereaccurate three-dimensional parameter Modeling. And other parts and then build three-dimensional virtual model assembly， complete the establishment of the entire model.Finally， the differential main parts: a planetary gear and axle gear and pawl locking device for finite element analysis. Verify its strength meets the requirements， and based onthe analysis results of the model to be modified appropriately. Eventually established byADAMS software virtual prototype and dynamic simulation analysis， the differential instraight running and slipping with two kinds of conditions were simulated. The resultsproved that the novel has a non-slip differential characteristics.