Matthew Smith

Document Type

Honors Thesis


As the effects of climate change have left the horizon and become a present-day problem, the transportation industry is aggressively seeking to reduce harmful emissions. The majority of cars currently on the road are powered by a central engine connected to two or four wheels through a transmission driveshaft(s), and other mechanical linkages. Each of these components, however, introduces significant inefficiencies and can result in let power losses upwards of 15%. By replacing the central motor with four smaller motors placed inside the wheel hubs, these mechanical inefficiencies can be eliminated. This project develops a conceptual steering and suspension system to accommodate the inclusion of a drive motor inside the wheel hub. Additionally, a quarter car analysis was used to determine the necessary spring and damping rates for optimal ride comfort.

Publication Date






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