The Green Wheel The design of a selfcontained

The Green. Wheel: The design of a selfcontained bicycle electric-assist system. Arthur Petron Smart Cities 2

Schedule 1. Purpose Problem Importance 2. Approach Modules/Parts Technology and Testing 3. Originality e. Bike Comparison Contributions to Field 4. Evaluation Methodology Expected Outcomes

Purpose General Information Purpose The Problem and Importance Problem: Assisted biking dramatically expands the market, but current e. Bike systems are unintelligent, ugly, and cumbersome. Importance: The research areas required are motor design, electrical engineering, mechanical engineering, and industrial design. It is intended that the work be published in a way that makes is a useful reference for the process of building an electromechanical system. 2

Approach features Approach Features ABS braking Data logging and workout plans Fully wireless control Gearless drivetrain Integrated energy storage and charger in wheel Ratiometric torque control mode Water-resistant 3

Module Breakdown modules Approach Module Breakdown Modules Two main modules 4

Module Breakdown modules Approach Module Breakdown Modules Outer Casing Motor Electronics and Batteries 5

Module Breakdown modules Approach Module Breakdown Modules Enclosure (19) Electronics and Batteries (16, 17) Gear and Mount (15) 6

Technology onboard intelligence Approach Technology Onboard Intelligence Intelligent velocity matching toque assist can provide either adjustable 1 x - 2 x torque or full torque Data-logging enables users to retrieve vital statistics such as calories burned or distance traveled Safety countermeasures provide back-up circuitry in the event of hardware failure 7

Testing methodology Approach Testing Methodology Mechanical and Electronic devices can be tested to determine specifications and areas of improvement User experience is determined by mass interaction with the device in order to determine flaws The look and feel of the device (subjective artistic impression) gauged by polling, art history, etc. 8

Originality electric bikes Originality Competitive Analysis E-bikes Feature Cost Battery Cycle Life Range Motor Power Fits any Bike Top Speed Data Logging Torque Sensing Exercise Mode Water Proof Integrated Battery Protection Regenerative Braking Charge Time Green. Wheel $1, 100 2500 15 -25 miles 800 W Yes 30 mph Yes Yes Yes 15 minutes Bion. X Schwinn Green. Line $1, 700 $3, 500 $1, 300 800 2000 800 25 -30 mi 20 mi 500 W 180 W 250 W No No No 25 mph No No Bo No No No Yes No No 30 minutes 15 mph No No No Yes No No Ultra. Motor $2, 700 800 20 mi 500 W No 20 mph No No No Yes No 3. 5 Hours 9

Competitive Analysis advantages Originality Competitive Analysis Green. Wheel Advantages Green. Wheel is the least expensive kit when paired with a < $200 bicycle Most powerful motor Competitive cycle life and charge time Most advanced features (ABS/data-logging/workout plan potential) 10

Contributions Originality Contributions to the Field As much about the innovations required to make the device as the process through which the innovations are made Goal is to have a guide, or design reference, that can be used by others to design anything from a better toaster to a world ending robot 11

Evaluation methodology Evaluation Methodology In-field faculty and local expert consultations to determine the extent to which the goals of the work have been met Physical evaluation similar to testing 12

Evaluation expected outcomes Evaluation Expected Outcomes Strong Engineering Successful Industrial Design Useful Resource to Others 13