Effects of Steering System Friction and Jacking Force on On-Center Driving Performance in a Commercial Vehicle

Paper #:
  • 2017-26-0339

Published:
  • 2017-01-10
DOI:
  • 10.4271/2017-26-0339
Citation:
Mari, J. and Srinivasan, E., "Effects of Steering System Friction and Jacking Force on On-Center Driving Performance in a Commercial Vehicle," SAE Technical Paper 2017-26-0339, 2017, https://doi.org/10.4271/2017-26-0339.
Pages:
6
Abstract:
In heavy commercial vehicle segment in India, driver comfort and feel was largely ignored. Fierce competition in the recent years and buyer’s market trend is compelling the designers of heavy truck to focus more on the finer aspects of attribute refinements. Steering is one driver-Vehicle interface which the driver is engaged throughout. Comfort and feel in steering wheel is defined by parameters like steering effort, manoeuvrability, on-center feel & response, cornering feel & response, Torque dead band, return-ability etc. and is influenced by a long list of components and systems in the truck. This study focuses on the influences of jacking torque and steering system friction on the on-center driving performance.Experiments to measure the Jacking torque and steering system friction were conducted in the lab and subjective and objective assessments of on-center driving performance were later conducted at test track in two similar 12 Ton truck to correlate their effects. This correlation is discussed in detail in this publication.
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