Estimating Path Clearing Effects during Potential Hydroplaning through the Use of Vehicle CAN Bus Data

Paper #:
  • 2013-01-0408

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-0408
Citation:
Metz, L. and Meyers, D., "Estimating Path Clearing Effects during Potential Hydroplaning through the Use of Vehicle CAN Bus Data," SAE Int. J. Passeng. Cars - Mech. Syst. 6(1):28-42, 2013, doi:10.4271/2013-01-0408.
Pages:
15
Abstract:
During wet weather operating conditions, tire hydroplaning can occur, potentially altering the handling characteristics of a vehicle. The rear tires of the vehicle run in a path previously cleared by the front tires under some operating conditions. Although path clearing has been previously demonstrated both analytically and qualitatively, it is difficult to estimate the changes in the tire/road coefficient of friction resulting from path clearing because of the complexity of the hydroplaning flow regime. In the present work, we utilize wheelspeed information captured from the vehicle CAN bus and photography to examine potential variations in tire/road coefficient of friction that result from path clearing. Results suggest that differences in friction availability may result from such path clearing. Maneuvers performed include steady-state cornering tests, straight-line braking and ISO lane change maneuvers. An understanding of the path clearing phenomenon is central in the estimation of vehicle paths and behavior during hydroplaning conditions.
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