A Study on the Optimum Reduction of Required Brake Fluid Level for Improvement of the High Speed Continuous Brake Distance

2019-01-2121

09/15/2019

Event
Brake Colloquium & Exhibition - 37th Annual
Authors Abstract
Content
The high speed continuous braking distance assessment is the worst condition for thermal fades. This study was conducted to investigate the relationship between fade characteristic and friction materials & brake fluid amount for improving braking distance. So, we used the dynamometer to measure the friction coefficient, braking distance and required brake fluid amount. Through the measurements, the research was carried out as follows. First of all, we studied the influence of friction coefficient about different shapes (chamfer shape, area of the friction material, number of slots) on the same friction material. Secondly, we knew the effects of braking distance by the shape of the friction material. Through these two studies, the shape of the friction material favorable to the fade characteristics was derived. Finally, we measured the amount of required brake fluid in caliper after 10 consecutive braking cycles through Dynamometer. And then, we measured the amount of compression deformation and uneven wear of the friction material. It was found that the above two factors cause the increase the amount of required brake fluid. Through this study, in order to have strength for the fade characteristic, it is required that continuous management of the friction material and shape of brake pad. This is because the friction coefficient and the high temperature compression deformation of the friction material are determined by its material. Also, it is necessary to robust design the caliper for reducing for uneven wear about the brake pad.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-2121
Pages
5
Citation
Kim, J., Kim, K., and So, E., "A Study on the Optimum Reduction of Required Brake Fluid Level for Improvement of the High Speed Continuous Brake Distance," SAE Technical Paper 2019-01-2121, 2019, https://doi.org/10.4271/2019-01-2121.
Additional Details
Publisher
Published
Sep 15, 2019
Product Code
2019-01-2121
Content Type
Technical Paper
Language
English