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Technical Paper

Tire Cost of Ownership Relative to Vehicle Energy Cost, Route, and Tread Depth

2021-04-06
2021-01-0938
Use of passenger and light truck vehicle fleets is likely to increase. Reducing operating cost is a common objective of fleet owners. Tires impact cost in two primary ways, rolling resistance and replacement cost. The total cost due to rolling resistance, replacement cost, and other secondary contributions is referred to as ‘tire total cost of ownership’. Both costs due to rolling resistance and replacement are a function of the driving route and the tread depth. In this paper, tire total cost of ownership for a broad distribution of routes is compared in a relative sense to the other route-dependent energy consumption costs resulting from vehicle inertia and vehicle aerodynamic drag. The algorithm developed includes the route history of velocity and forces on the tires and their effect on tire rolling resistance, tire wear rate, energy required to accelerate the vehicle inertia, and the energy lost to aerodynamic drag.
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