Development of New Generation Continuously Variable Transmission

Paper #:
  • 2014-01-1728

Published:
  • 2014-04-01
Citation:
Aoyama, T., Takahara, H., Kuwabara, S., Miyata, H. et al., "Development of New Generation Continuously Variable Transmission," SAE Technical Paper 2014-01-1728, 2014, https://doi.org/10.4271/2014-01-1728.
Pages:
7
Abstract:
In response to global demands for environmental conservation, the automotive industry is placing greater focus on the development of fuel-efficient technologies to help reduce global CO2 emissions.With the aim of simultaneously improving fuel economy and driveability, TOYOTA has developed a new continuously variable transmission (CVT) vehicles in North America equipped with a 1.8-liter engine [1].This new CVT features various technologies for improving fuel economy, including: the world's first coaxial 2-discharge port oil pump system, wider ratio coverage, a flex start system, low-viscosity CVT fluid, and a higher final gear ratio.This paper outlines the configuration, characteristics, performance, and new technologies of this CVT.
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