team silver 2.009 final presentation december 7,...
TRANSCRIPT
Team Silver2.009 Final Presentation
December 7, 2009
Driven car without removing all ice?Time to clear ice
Data collected through online survey of 400 drivers over 18
Introduction
73% Yes
27% No42%
<5 min49%
5-10 min
9%
Motivation
10-20 min
User Need Performance Goals Technical Challenge
EfficientClear windshield in less than 5 min Effective ice chipping
mechanismEfficient
Minimal applied force at grips
Effective ice chipping mechanism
ComfortableHandle diameter and length
Ergonomics and compact design
Comfortable Reach distance over 2 feetErgonomics and compact design
ComfortableLightweight (less than 5 lbs)
Ergonomics and compact design
DurableFunctional in cold weather Electronics and
frictionDurable
Minimal component wear
Electronics and friction
Introduction
Design Targets
Proof of ConceptSlow Motion VideoBlade in Action
Proof of ConceptSlow Motion VideoBlade in Action
Technical
Eccentric Drive
motor
Technical
Eccentric Drive
motor
miter gears
Technical
Eccentric Drive
motor
miter gears
eccentric cam
Technical
Eccentric Drive
motoraxial
follower
blade
.045” throw
miter gears
eccentric cam
positivereturn
Technical
Eccentric Drive
In ActionActuation Simulation
Technical
In ActionActuation Simulation
Technical
Lithium NanoPhosphate Chemistry
Excellent cold weather performance
High energy density: 20 minutes of use
Safe, eco-friendly
Lightweight
Tradeoff: cost
Technical
26650 A123
LiFePO4
Cell
Batteries
26650 A123
LiFePO4
Cell
Powering IceTek
Lithium NanoPhosphate Chemistry
Excellent cold weather performance
High energy density: 20 minutes of use
Safe, eco-friendly
Lightweight
Tradeoff: cost
12-14V ChargeSignal
ChargingCircuitCar Jack
Technical
26650 A123
LiFePO4
Cell
Batteries
26650 A123
LiFePO4
Cell
Powering IceTek
Technical
Form Development
Anthropometric databaseNASA
Technical
Form Development
Anthropometric databaseNASA
Technical
Form Development
Hand tool ergonomicsCanadian Centre for Occupational Health and Safety
Anthropometric databaseNASA
Technical
Form Development
Hand tool ergonomicsCanadian Centre for Occupational Health and Safety
User testingFoam models & Popular scrapers on the market
User-Defined Needs Implementation
High end aesthetic Sleek contours
Freedom of grip Integrated smooth profile
Increased reach 2.5 feet from blade to end grip
Grip sized for all user groups Handle diameter is 1.25 in
Straight forward user interface Toggle button switch
Technical
Ergonomic User Needs
Ice Scoring Head
Brass Blade
Technical
Blade
Final Design
Powertoolmarket:$10.3billion
Snow&icetoolmarket:$70million
14milliontoolssoldannually
Ourmarket:1,000,000customers
Business
Market Data
Annual Sales
0!
20000!
40000!
60000!
80000!
100000!
120000!
1! 2! 3! 4! 5!
Uni
ts S
old
per Y
ear
YearsBusiness
Price & Costs
0!
20!
40!
60!
80!
100!
120!
140!
160!
180!
1! 2! 3! 4! 5!
Years
Dol
lars
per
Uni
t
Selling Price
Manufacturing Cost
Business
$165
$55
The Bottom Line
Sales Price: $165
NPV: $1.3 million
Investment: $350,000
ROI: 80%
Business
IceTek: The Next Generation
Reduce the size of gearbox (form factor)
Revise design based on mass production
Establish easier assembly methods
Business
Acknowledgements
Prof. David WallaceProf. Maria YangBarry KudrowitzLoren WoodJane KokernakGeoff TsaiDavid MeekerDr. Barbara HugheyJingying ZhangJustine Sheffield, AutoZoneBrett Windsor, Hopkins Mfg Corporation
Justin Coutu, R&D TechnologiesDick FennerJoe CroninSteve HaberekJim DudleyBob NuttalFred Cote400 User Survey Respondents
Back up
Power Decisions
Cord Always Ready Long Life Prohibitively Unwieldy
Cordless Charging Required Limited Battery Life Maneuverable
Charging
Built in Car Charger Circuit Charging Procedure:
Phase I -Constant Current
Phase II -Constant Voltage
Voltage
Current
2 A
7.4 V
Charging
Charging