Electric Skateboard ESK8

1
Electric SkateboardESK8

• Benchmarking and Critical Function Prototype

2
Overview

• Schedule
• Budget
• Benchmarking
• Critical Function Prototype

3
Schedule

• Current Progress
• Obtained motor and controller
• Obtained prototype batteries
• Future Deliverables
• Select regenerative circuit to match motor
• Clutch/drive mechanisms

4
Budget
Deposits/Donations Deposits/Donations
Allotted budget 300
Donation (Holly Corporation) 300

TOTAL 600 TOTAL 600
Item Purchased Cost
Motor 220
Batteries for prototype 50

TOTAL 270 TOTAL 270
GRAND TOTAL 330
5
Benchmarking

• Motor
• Batteries
• Clutch

http//www.pukkausa.com/
http//www.batteryspace.com/index.asp?PageActionV
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http//www.nextag.com/centrfugal-clutches/search.h
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6
Benchmarking

• Motor

Electric Vehicle Power Range Speed Battery
Viza Volt Scooter 200 Watts 5-8 miles 10-12 mph 2 lead acid
Tres Terra Bike 400 Watts N/A 20 mph Lithium ion
Pukka Mini Bike 400 Watts 24 miles 17-18 mph Lead acid
7
Benchmarking

• Batteries

Battery Type Voltage Amperage Weight Dimensions Cost Quantity Needed Charger Included
Polymer Lithium Ion 24 V 12.3 Ah 3.8 lbs 7"x5"x2.4" 395.95 1 No
Nickel Metal Hydride 24 V 13 Ah 11 lbs 13.25"x 2.65"x 3.6" 279.95 1 Yes
Nickel Cadmium 24 V 7 Ah 8.3 lbs 12.5 "x 2.5 "x 3.6 " 149.95 2 Yes
Lead Acid 12 V 18 Ah 13.1 lbs 7.1"x 3"x 6.6" 31.99 2 No
8
Benchmarking

• Clutch

Electric Vehicle Centrifugal Clutch Type Belt/Chain
Go-Kart Pulley V- belt
Mini-bike Belt Drive Belt
Go-Kart Geared Chain
9
Critical Function Prototype (CFP)

• Drive Motor
• Regenerative System
• Control Systems

10
CFP, cont.

• Drive motor
• 400 Watt motor
• 24 volt
• Carries 200 lb person

http//www.pukkausa.com/
11
CFP, cont.

• Regenerative System
• Dynamo generator
• Attached to axle shaft
• Directly charge batteries

12
CFP, cont.

• Control system
• Ability to switch between drive and regenerative
  circuits
• Pulse width modulator
• Increase performance of motor and batteries
• Clutch
• Idle until certain RPM of motor is reached

13
Overview

• Team is on schedule
• Received donation to add to budget
• Benchmarking
• Motor
• Batteries
• Clutch
• Critical Function Prototype
• Drive mechanism
• Regenerative system
• Control system

14
ESK8 Contact Information

• Kari Keddington
• karikedd_at_hotmail.com
• Susan Rich
• susanrich467_at_hotmail.com
• Andres Condemarin
• fatdre_at_hotmail.com