Presentation
Wheel dust measurement and root cause assessment
21st Annual Brake Colloquium & Exhibition
(2003)
Abstract
North American drivers particularly dislike wheel dust (brake dust on their wheels). For some vehicle lines, customer surveys indicate that wheel dust is a significant concern. For this reason, Ford and its suppliers are investigating the root causes of brake dust and developing test procedures to detect wheel dust issues up-front. Intuitively, it would appear that more brake wear would lead to more wheel dust. To test this hypothesis, a gage was needed to quantitatively measure the wheel dust. Gages such as colorimeters were evaluated to measure the brightness (L*) of the wheel, which ranged from roughly 70-80% (clean) to 10-20% (very dirty). Gage R&R's and subjective ratings by a panel of 30 people were used to validate the wheel dust gages. A city traffic vehicle test and an urban dynamometer procedure were run to compare the level of wheel dust for 10 different lining types on the same vehicle. Wear (both mass and thickness loss) measurements were made for each test and compared to the level of wheel dust. Correlations between wheel dust level and wear were observed.
Keywords
- Braking systems,
- Brake linings,
- Disc brakes,
- Tires and traction,
- Wheels,
- Test procedures
Disciplines
Publication Date
October 19, 2003
Location
Warrendale, PA
DOI
10.4271/2003-01-3341
Comments
SAE Technical Paper
© 2003 SAE International. Publisher's version of record: https://dx.doi.org/10.4271/2003-01-3341
Citation Information
Paul George Sanders, Mohammad Vakili and Robert Mangan. "Wheel dust measurement and root cause assessment" 21st Annual Brake Colloquium & Exhibition (2003) Available at: http://works.bepress.com/paul-sanders/63/