Transportation GroupTransportation Group

Christina Fenn

Patrick Wheeler

Rob Benkovic

Brian Brown

Vince Crossley

Ryan Botzler

Nick Lynch

Segway HTSegway HT

Changed the way we think about sidewalk travel

Provided a cheaper, environmentally safe alternative to automobiles

Uses revolutionary new technology to balance and control a 2 wheeled vehicle

Our MissionOur Mission

To design and construct a significantly cheaper and more efficient alternative to the Segway HT

Goals for the ProjectGoals for the Project

Make sidewalk travel in a city environment much easier

Provide an environmentally safe alternative to automobiles

Allow people to travel at up to 3 times the speed of walking

Maintain a “user-friendly” control system Allow for easy maneuverability through crowed

areas Keep lightweight and portable

Technical GoalsTechnical Goals

2 front drive wheels with either 1 or 2 heavy-duty casters in the back

2 independent reversible motors allowing for a 0 degree turning radius

Rechargable 12 or 24 volt batteriesHandgrip operated accelerator/decelerator

controlsAluminum frame

Preliminary SchedulePreliminary Schedule

1/15-2/12 Initial Planning 2/12-2/19 Order Scooter 2/19-2/25 Take Apart Scooter…Order Wheels, axels, gears, speed

controllers 2/26-3/1 Continue analyzing scooter…organize parts and materials 3/2-3/11 Spring Break 3/12-3/18 Finalize design plans…Order framework, bearings, bolts,

plating 3/19-3/26 Begin building motor/wheel/battery setup 4/3-4/9 Build framework, incorporate drivetrain 4/10-4/17 Finish construction, test and fine-tune product 4/18 FINISH

Actual Project TimelineActual Project Timeline

1/15-2/25 Project Planning (1 week behind) 2/26-3/1 Order scooters (1 week behind) 3/2-3/11 Spring Break

3/12-3/18 Analyze Scooters…Organize Parts and Materials (2 weeks behind)

3/19-3/26 Modify scooter frame, develop new project design, meet with Prof. Haller about motor control, order motor controls

4/3-4/9 Finalize Design, begin build wheel/gear setup, order aluminum plating (2 weeks behind)

4/10-4/17 Continue wheel/gear construction, attach handlebars, purchase final parts, build throttle controls, put together wiring harness

4/18-4/24 Attach caster, bolt together frame, attach motor, speed controls 4/25 Fine tune and test, FINISH (1 week behind)

Initial BudgetInitial Budget

Component Quantity Estimated Cost

Motor 2 160.00$ Battery 2 220.00$ Wheels 2 80.00$ Caster 1 35.00$ Motor Control 2 100.00$ Bearings 4 140.00$ Throttle Control 2 10.00$ Alluminum Framing ? 20.00$ Alluminum Plating 4-5 sq. ft. 100.00$ Axel 2 15.00$ Gears ? 30.00$

Total Estimated Cost: 910.00$

Store Part Quantity Total Cost

American Science and Surplus Silver Bomber Electric Scooter 2 212.95$ Wal-Mart Plastic Spoke Wheel 2 14.28$ Home Depot 1/2" Alluminum Axle 1 6.14$ Golf Tech Industries Curtis Model 1204-001 Motor Controller 2 330.00$ Ace Hardware Assorted Nuts and Bolts ? 7.29$ Radio Shack Electronic Components 5 21.99$ Home Depot Assorted Nuts and Bolts ? 13.06$ McMaster Carr 3/16" x 12" x 24" Alluminum Sheet Metal 2 73.20$ Farm & Country Store 6" Caster 1 25.43$

Total Cost: 704.34$

Remaining Funds: 295.66$

Expense Report

Project ComponentsProject Components

H an d leb ars

In te rn a l S u p p orts E xte rio r P la tin g N u ts an d B o lts

B od y D es ig n W h ee ls /C as te r

F ram ew ork

M oto rs G ears

B atte ry C h arg er

B atte ries

D rive tra in

W irin g H arn ess

Th ro tt le

M oto r C on tro l

E lec tron ics

F in a l P rod u c t

ChallengesChallenges

Limited timeframeLimited technical knowledgeNeeded lots of researchProblems finalizing designDifficulty finding necessary componentsDifficulty scheduling meeting times

AccomplishmentsAccomplishments

Capable of both forward and reverse motion Accomplishes 0 degree turning radius goal Semi-portable, can be lifted by one person

(approx. 50-60 lbs.) About shoulder width and only 17” long, allowing

for easy maneuverability through crowds 11” Platform allows user to see above crowds

Needs ImprovementNeeds Improvement

Slow acceleration and reaction time by motors

Gear ratio does not provide enough powerSingle caster can become unstable at higher

speedsInefficient use of spaceForced to put motor controls outside of the

body

How to ImproveHow to Improve

Spend more time testing and analyzing strengths and weaknesses

Enable more direct control of wheel speedsCut back on weight allowing for quicker

accelerationDesign and build a more efficient frameIncorporate charging capability