Design and Power Flow Analysis for Multi-speed Automatic Transmission with Hybrid Gear Trains

A design approach for multi-speed automatic transmission with hybrid gear trains is proposed. The approach can be used to design automatic transmissions composed of planetary gear trains, fixed-axis gear trains or hybrid gear trains and the shifts follow the “one controlled part changing rule”. This approach consists of four parts: determining graphical configuration of the system using hypergraphs, analyzing power flow formulation, obtaining shifts configurations by shift searching algorithm, and determining physical configuration. A nine forward speed automatic transmission is analyzed to highlight the capacities of the proposed approach. The results have shown that the suggested approach is much clearer and less time consuming than the methods currently used.


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  • Accession Number: 01603178
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 2 2016 12:24PM