Modeling of Tyre Parameters’ Influence on Transport Productivity for Heavy Trucks
Examensarbete för masterexamen
Automotive engineering (MPAUT), MSc
Today in Volvo Group Trucks Technology, in order to increase the accuracy and reliability of tyre selection, as well as to minimize the rolling resistance to lower the cost of operation, a PhD project ‘TyreOpt – Fuel consumption reduction by tyre drag optimization’ was started in 2012. As the phase one of this project, this master thesis was to construct a simple but accurate enough model to calculate the cost of operation for heavy trucks, specifically, fuel cost and tyre cost. With the help of Matlab and Simulink, a mathematical model was built and it enables to select the best suitable tyre for a particular vehicle specification and operating environment. Besides, it can also preliminary demonstrate the relationship between each of the tyre parameters and cost of operation. In order to ensure that other tyre dependent features are still on acceptable levels for specific vehicle and operating environment, three constraints equations were also conducted as a supplement to the model. They are startability, handling and ride comfort models, representing three basic vehicle dynamics in three directions. Finally, a Simulink model was built to model fuel cost and tyre wear, and constraints equations were also created for basic dynamics performance. But future work is needed to improve the result accuracy due to the models are simplified.
Transport , Farkostteknik , Transport , Vehicle Engineering