EV360 - Electric Monowheel
Since the beginning of 2019, I have been working on designing and building the world's fastest electric monowheel. This one-wheeled motorcycle, which our team of four Duke University students named the EV360, has been approved by the Guinness Book of World Records to try and set the record at a minimum of 45 mph (72 km/h). Though we have designed the vehicle to reach speeds of up to 70 mph (113 km/h) and have finished its construction, the coronavirus pandemic has so far prevented us from attempting the record.
The EV360 features an electric motor rated for 11 kW (14.75 hp) continuous and 23 kW (31 hp) peak that is powered by 72V 22Ah lithium batteries. A double V-belt pulley system delivers this power to a cast urethane drive wheel, which is pressed against a 5 foot diameter steel wheel through gas springs.
My main responsibilities included the design and construction of the main aluminum frame, the battery mount and protective casing, the motor mount, the drivewheel arm and suspension, the belt tensioning system, and various other structural components. I used Fusion360 to design the appropriate CAD models and analyze components before fabricating and testing each part. I incorporate a careful attention to detail and high level of precision into my designs, allowing me to create critical components that call for efficiency and professional execution.
Apart from some over-sized parts, the entire monowheel was constructed at Duke University's makerspace and student machine shop by milling, lathing, water jet cutting, laser cutting, and 3D printing components. This project helped me become highly proficient in the use of these tools and honed my rapid prototyping and manufacturing skills.
While the coronavirus pandemic prevented us from officially attempting our world record run, we used the time to assemble and manage a volunteer team of marketing experts and content creators who helped us with media outreach. Our project has been featured on major tech websites and blogs, including UNILAD, Car and Driver, Electrek, Interesting Engineering, Wonder World, and World of Engineering.
The EV360 features an electric motor rated for 11 kW (14.75 hp) continuous and 23 kW (31 hp) peak that is powered by 72V 22Ah lithium batteries. A double V-belt pulley system delivers this power to a cast urethane drive wheel, which is pressed against a 5 foot diameter steel wheel through gas springs.
My main responsibilities included the design and construction of the main aluminum frame, the battery mount and protective casing, the motor mount, the drivewheel arm and suspension, the belt tensioning system, and various other structural components. I used Fusion360 to design the appropriate CAD models and analyze components before fabricating and testing each part. I incorporate a careful attention to detail and high level of precision into my designs, allowing me to create critical components that call for efficiency and professional execution.
Apart from some over-sized parts, the entire monowheel was constructed at Duke University's makerspace and student machine shop by milling, lathing, water jet cutting, laser cutting, and 3D printing components. This project helped me become highly proficient in the use of these tools and honed my rapid prototyping and manufacturing skills.
While the coronavirus pandemic prevented us from officially attempting our world record run, we used the time to assemble and manage a volunteer team of marketing experts and content creators who helped us with media outreach. Our project has been featured on major tech websites and blogs, including UNILAD, Car and Driver, Electrek, Interesting Engineering, Wonder World, and World of Engineering.
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