Next Generation Torque Control Fluid Technology, Part I: Break-Away Friction Screening Test Development 2006-01-3270
The popularity of SUVs and light trucks in North America, combined with the return to rear-wheel-drive cars globally, is significantly increasing the installation rates of torque control devices that improve vehicle stability and drivability. As with other driveline hardware, it is important to optimize the friction material-lubricant-hardware system in order to ensure that a torque control device provides consistent performance over the life of the vehicle. While there are many publications on friction tests relevant to automatic transmission fluids, the literature relating to torque control testing is not as well developed. In this paper we will describe the development of a break-away friction screening test using a Full-Scale Low-Velocity Friction Apparatus (FS-LVFA). Additionally, we will illustrate how this screening test can be used to investigate the fundamental friction material-lubricant interactions that occur in continuously engaged limited slip differentials.
Citation: Szappanos, G., Bartley, S., Schiferl, E., Huston, M. et al., "Next Generation Torque Control Fluid Technology, Part I: Break-Away Friction Screening Test Development," SAE Technical Paper 2006-01-3270, 2006, https://doi.org/10.4271/2006-01-3270. Download Citation
George Szappanos, Stuart Bartley, Elizabeth Schiferl, Michael E. Huston, Edward Akucewich, Mark Baker, Mitchell Gentile, Jerry Mount, Gabe Rhoads, Denise Vermilya, Dave Whitticar
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