1. Bicycle Assist ET 493 Fall 2017 Thomas Ballinger Evan Vasalech
Samuel Campo
Jeremy Passaro
Dr. Mitra

2. About The Project Low Cost Low Profile Readily Available Safe
Universal Fit
Efficient

3. Electric Motor Vs Gas Motor
Pros
Quiet
Emission Free
Able to apply max torque instantly
High Efficiency
Cons
Battery Cost
Frequent Recharging
Limited Range
Pros
Convenient
Repairable
Range
Fast refueling
High torque output at max rpm
Cons
Refueling can get expensive
Emissions
Noisy

4. Power Recharging Options
Wall Outlet
Solar
Manual
Easy to recharge after use
Need an DC battery charger to charge
Constrained to outlet locations
Uses sunlight to recharge battery
Limited to weather conditions
Not constrained to civilization
Least involved method
Possible slow recharge time
No constraints but manual labor

5. Safety Stop Options Tension Sensor in chain
Rocker switch with relay on brakes
Angle sensors
Acceleration sensors

6. Tasks Ahead Motor options Motor placement Safety stop options
Electrical circuit
Ergonomic considerations
Look into safety laws and regulations
Bracket designs
Sensors
Budget
Staying on schedule

7. Budget “Low Cost, Low Profile”
Other designs cost up to $1200 with some of the cheaper ones costing around $500
Battery, sensors, and motor will be our biggest budget issues
Giving up some benefits for cost

8. Individual Tasks – Team Tasks
ET 493
Jeremy
Samuel
Evan
Tommy
Research
Force Analysis
Battery
Motor
Range
Circuit
Motor Mount
Safety
Budget Analysis
Schedule

9. Schedule (Subject to change)
Research Best Methods
Start: 9/22/17 ID: 1
Finish: 9/28/17 Dur: 5 days
Schedule
Start: 9/22/17 ID: 2
Finish: 9/23/17 Dur: 2 days
Force Analysis
Start: 9/25/17 ID: 3
Finish: 10/5/17 Dur: 9 days
Circuit Design
Start: 10/5/17 ID: 4
Finish: 10/12/17 Dur: 6 days
Battery Research
Start: 10/13/17 ID: 5
Finish: 10/17/17 Dur: 3 days
Motor Research
Start: 10/13/17 ID: 6
Finish: 10/17/17 Dur: 3 days
Motor Mount Design
Start: 10/18/17 ID: 7
Finish: 10/26/17 Dur: 7 days
Range Calculations
Start: 10/27/17 ID: 8
Finish: 11/6/17 Dur: 7 days
Safety
Start: 11/7/17 ID: 9
Finish: 11/15/17 Dur: 7 days
Final Report Due
Start: 11/16/17 ID: 10
Finish: 11/28/17 Dur: 9 days