Study on Contribution of Tire Driving Stiffness to Vehicle Fuel Economy

Paper #:
  • 2012-01-0794

Published:
  • 2012-04-16
Citation:
Mogi, E., Notomi, S., Mizone, T., Yamazaki, S. et al., "Study on Contribution of Tire Driving Stiffness to Vehicle Fuel Economy," SAE Technical Paper 2012-01-0794, 2012, https://doi.org/10.4271/2012-01-0794.
Pages:
9
Abstract:
In recent years, the contribution of tires on vehicle fuel economy has been garnering attention. Up until now, rolling resistance coefficient (RRC) has been the standard way of measuring the amount of impact the tire has on fuel economy. We devised a new method for evaluating the impact of tires on fuel economy that incorporates the concept of tire “driving transmission efficiency” (hereinafter referred to as “driving stiffness”). In doing so, we have clarified the technology direction for contributing to the improvement of fuel economy while maintaining vehicle maneuverability by reducing RRC and improving tire driving stiffness.
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