Coast Down Method in Time and Distance Variables for Tire Rolling Resistance Determination

2009-01-0072

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
An improvement of coast down method used for vehicle tire rolling resistance determination at drum benches is described.
The method is based on the discovered differential equation solution in form of explicit function “time-distance” for deceleration motion of mechanical system. This solution conforms with the partial solution of Rikkati equation [1]. It eliminates the traditional necessity to find values of the speed as parameter of indirect measuring which contains several sources of error. This simplifies required measurement instruments. A simple but highly accurate way of measuring the inertia moment of rotating bodies, free from the mass limitations, is proposed as an important part of the new method. It does not require a dismounting the rotating bodies and removing them from their supports. Examples showing the new method accuracy, repeatability and reproducibility are presented.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-0072
Pages
23
Citation
Petrushov, V., "Coast Down Method in Time and Distance Variables for Tire Rolling Resistance Determination," SAE Technical Paper 2009-01-0072, 2009, https://doi.org/10.4271/2009-01-0072.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-0072
Content Type
Technical Paper
Language
English