Bicycle Powered Charger

Kento YamaguchiECE 498 Design Defense

Advisor: Professor Hedrick

Project Goals

• Generate and store enough energy to charge common small electronics.• Motivate people to use their bicycle for health.• Aggregate daily tasks by providing the user an alternative to charging

their electronics and transportation.

Design Requirements

• Optimize the components of the system for maximum generated stored energy for minimum effort. • Minimal interference with the normal function of the bicycle.• Fit on any bicycle.• Easy to attach and remove.

Top Level Design

Design Options

• AC or DC generator.• Lithium Ion, Nickel Metal

Hydride, or Nickel Zinc battery

Generator placement:• Gears for less resistance to the

overall bike speed.

Testing plan

• Test the bicycle without the device for:• time to complete a set distance • distance traveled in a set time• Test the bicycle with the device for time, distance, and energy produced.

• LCD display and circuit to monitor to show amount of energy in the battery

• Efficiency measurement:• Power = torque * radial velocity• Compare this power to what I actually get

Design ScheduleTime Plan

October 2015 Project presentationGet parts orderedSecond grant period

November 2015 Receive parts for projectTest parts when they arriveFinalize paper and website for the project

December 2015 Check up on parts that have arrivedThink about how the device will be put together

Winter Week 1 Test each part individually and gather information on their usage.Think about how to connect each part

Winter Week 2 Apply for grants on parts broken while testing if necessary.Continue testing and make decisions on which parts to use based on their performance.

Winter Week 3 Find ways to connect the parts together in a way that will successfully draw energy from a bicycle and be comforting to the user as well.

Winter Week 4 Start testing the device on the bicycle

Winter Week 5 Complete tests on the bicycle

Winter Week 6 Think about what conclusions that can be made based on the whole design experience.

Winter Week 7 Work on design presentation and report based on testing.

Winter Week 8 Capstone Design Presentation

Winter Week 9 Work on final report based on testing

Winter Week 10 Deliver final report

May 27, 2016 Steinmetz Day

Future Work more on the project

Estimated Cost of Project

QTY ITEM(S) ORDERED UNIT PRICE TOTAL2 AC Motor $50 $1002 DC Motor $25 $501 Lithium Ion Battery $20 $201 Sealed lead acid $20 $201 Nickel-Zinc battery $20 $201 Nickel-Metal Hydride battery $20 $201 USB port $35 $351 Torque Meter $170 $1701 LCD Display $30 $30 Total $465

The end

Questions?