Development of High-Efficiency New CVT for Midsize Vehicle

Paper #:
  • 2013-01-0365

Published:
  • 2013-04-08
Citation:
Inukai, K., Shibahara, A., Uchino, T., Keiichi, N. et al., "Development of High-Efficiency New CVT for Midsize Vehicle," SAE Technical Paper 2013-01-0365, 2013, https://doi.org/10.4271/2013-01-0365.
Pages:
6
Abstract:
A CVT for midsize vehicles was developed that simultaneously achieves high levels of fuel efficiency performance and driving enjoyment, and marketability enabling deployment to global markets, and support for high-torque direct injection engines. This was done by modifying the CVT for 2.4 L-class vehicles sold in Japan, expanding the ratio range, using CVTF with a high friction-coefficient that simultaneously realizes both high efficiency and a high transmission capacity. This enabled achievement of an overall length of 386.5 mm, total weight of 96.1 kg, and maximum transmission torque of 270 Nm, and also enhanced fuel efficiency by approximately 10% (EAP fuel economy label) compared to the 2008 model year Accord 5AT and approximately 5% (JC08) compared to the 2010 model year STEP WGN CVT. Thus, CVT performance was obtained that can simultaneously realize high levels of both fuel efficiency and driving enjoyment. This CVT is applied from the 2012 model year STEP WGN and the 2013 model year Accord.
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