Transmission synthesis program

  • 09-Feb-2011 01:32 EST
trans synthesis_high res.jpg

IAV Automotive Engineering Inc. is introducing a computerized tool set for the selection of automatic transmission gearing arrangements. The program systematically searches through all power-flow permutations for a specific application and then selects the architecture with the highest mechanical efficiency and the lowest number of loaded components. Searches can be performed for both conventional planetary and dual-clutch lay shaft structures. Future transmission wants include lower weight and cost, hybridization, a small package, and good shift quality. The manual search for transmission architectures cannot support these stringent and complex requirements. The IAV transmission structure search process entails three main phases: first, the application parameters are established; second, all possible transmission variants are generated for the application; and third, selection and ranking criteria are used to narrow the set of transmission concepts down to candidate structures with favorable properties.

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