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TAE 23rd International Tribology Colloquium 2022

Base oil benchmarking for gear oils in electric vehicle drivetrains

The penetration of electric vehicle technology is a major trend resulting from global regulations intended to improve vehicle fuel efficiency and reduce emissions of greenhouse gases. OEMs, suppliers and researchers look for base oils that meet new e-fluid needs. So far few systematic studies benchmark crucial properties of e-fluid base oils.

This talk will compare base oil properties of Polyalphaolifins and new Polyglykol solutions covering the following topics:

  1. cooling performance evaluating thermal conductivity and heat transfer properties
  2. energy efficiency evaluating friction on a ball on disc tribometer
  3. electrical properties evaluating electric conductivities
  4. sustainability assessing ecotox profile and biodegradability
  5. thermal and thermal-oxidative stability.