Beaver Works Assistive Technology | Design of Assistive Technology | AT Trike
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AT Trike

Co-Designer

My co-designer is Alfonso. He has a wife and three kids, has a great sense of humor, and loves to spend time with his family. Alfonso is a person who is quadriplegic.

Co-Designer Needs Statement

My co-designer needs a device that will allow him to go on off-road trips with his family, and can be controlled with his hands, and without the use of his limbs.

Product Requirements

Product will be able to support a 200 pound 6'2" user. Is operated only by a joystick. Can go up to 13 mph. Can go on grass, woods trails, and fit on side walks.

Initial Brainstorming Narrative

I decided early on that I was going to get a frame from an existing product as a jumping off point. I did a lot of external research on small off-road vehicles with electric motor capabilities. I settled on using some form of a commercial trike, and looked through various companies to find a frame that worked best for my design. I went through many iterations of brainstorming on how steering would work. I found that the steering damper worked in a linear motion, and I figured instead of the steering moving the damper, a linear actuator in its place could conversely control the steering. For braking I toyed around with a lever design, but decided a compact solenoid brake would work best, although it would have a binary input of either braking or not.

Initial Prototype

a top, side, and front view of the proposed motorized tricycle

a photo of the initial tricycle prototype

Second Prototype

Coming soon!

Third Prototype

Coming soon!

Nth Prototype

Coming soon!

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