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Perspective Planetary-Layshaft Transmissions with Three Power Flows

  • Konstantin SalamandraEmail author
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

The most effective way to reduce fuel consumption by the vehicle equipped with internal combustion engine is to increase the number of speed ratios in the transmission. It leads to design complication and increasing the number of gear trains used. Here is proposed to make combinations of planetary gear sets and gears with fixed axles for obtaining simple designs of multi-speed transmissions with a small number of shifting elements used. The aim of the paper is to analyze compound transmission structures consisting of three simple gear trains with fixed axles and two planetary differential gear sets which forms three parallel power flows (three-stream transmissions). The possible structures of combined transmissions with planetary gears and gears with fixed axles are considered in the article. Such transmissions have a great perspective because of utilization simple gears and a small number of clutches, while these transmissions allow obtaining a significantly larger number of different speed ratios than the transmissions made up of the identical gears type. The possible three-stream transmissions structures were analyzed and classified, and a general expression is obtained for calculating the number of speeds in such transmission. A technique for synthesizing kinematic diagrams of transmissions with three power flows is described, using which new transmissions designs are obtained for each possible structure.

Keywords

Power flows Gearbox Transmission Synthesis Planetary-layshaft transmission Differential 

Notes

Acknowledgements

The research was supported by Russian Science Foundation (project No. 17-79-10493).

References

  1. 1.
    Wagner G, Naunheimer H, Scherer H et al (2007) Achtgang-automatikgetriebe zur reduzierung des kraftstoffverbrauchs. ATZ Automob Z 109(6):512–519.  https://doi.org/10.1007/BF03221894CrossRefGoogle Scholar
  2. 2.
    Ota H, Nozaki K, Honda A et al (2007) Toyota’s world first 8-speed automatic transmission for passenger cars. SAE technical paper 2007-01-1101.  https://doi.org/10.4271/2007-01-1101
  3. 3.
    Dong P, Liu Y, Tenberge P et al (2017) Design and analysis of a novel multi-speed automatic transmission with four degrees-of-freedom. Mech Mach Theory 108:83–96.  https://doi.org/10.1016/j.mechmachtheory.2016.10.013CrossRefGoogle Scholar
  4. 4.
    Förster H (1991) Automatische fahrzeuggetriebe. Springer, Berlin.  https://doi.org/10.1007/978-3-642-84118-7
  5. 5.
    Naunheimer H, Bertsche B, Ryborz J et al (2011) Automotive transmissions. Springer, Berlin.  https://doi.org/10.1007/978-3-642-16214-5
  6. 6.
    Volkov DP, Kraynev AF (1974) Transmissii stroitelnikh i dorojnikh mashin. Spravochnoye posobie (Transmissions of Building and Road Machines. Reference Manual). Mashinostroenie, MoscowGoogle Scholar
  7. 7.
    Müller HW (1982) Epicyclic drive trains. Analysis, synthesis, and applications. Wayne State University Press, DetroitGoogle Scholar
  8. 8.
    Zhang X, Li C, Kum D et al (2012) Prius(+) and volt(−): configuration analysis of powersplit hybrid vehicles with a single planetary gear. IEEE Trans Veh Technol 61(8):3544–3552.  https://doi.org/10.1109/TVT.2012.2208210CrossRefGoogle Scholar
  9. 9.
    Yang H, Kim B, Park Y et al (2009) Int J Automot Technol 10:381.  https://doi.org/10.1007/s12239-009-0044-y
  10. 10.
    Kraynev A, Salamandra K, Raghavan M (2013) Synthesis of the two-stream transmissions. In: Dobre G (eds) Power transmissions. Mechanisms and machine science, vol 13. Springer, Dordrecht.  https://doi.org/10.1007/978-94-007-6558-0_25
  11. 11.
    Antonov AS (1975) Silovie peredachi kolesnikh i gusenichnikh mashin. Teoriya i raschet (Power transmission of wheeled and caterpillar vehicles. Theory and calculation), 2nd edn. Mashinostroenie. LeningradGoogle Scholar
  12. 12.
    Krajnev AF, Astashev VK, Salamandra KB et al (2010) Gearbox. RU Patent 2391588, 10 Jun 2010Google Scholar
  13. 13.
    Kraynev AF, Astahev VK, Salamandra KB et al (2013) Multi-speed transmission. US Patent 8,360,919, 29 Jan 2013Google Scholar
  14. 14.
    Wolf A (1958) Die Grundgesetze der Umlaufgetriebe. Vieweg, BraunschweigGoogle Scholar
  15. 15.
    Kirdyashev YuN (1969) Mnogopotochnie peredachi differentsialmogo tipa (Multistreamed differential type transmissions). Mashinostroenie, LeningradGoogle Scholar
  16. 16.
    Matthes B (2005) Dual clutch transmissions—lessons learned and future potential. SAE technical paper 2005-01-1021.  https://doi.org/10.4271/2005-01-1021
  17. 17.
    Salamandra K (2018) Static analysis and parameters synthesis of planetary-layshaft transmissions with three power flows. In: MATEC Web of conferences, p 224.  https://doi.org/10.1051/matecconf/201822402040

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Mechanical Engineering Research Institute of the Russian Academy of Sciences (IMASH RAN)MoscowRussia

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