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APW Air Powered Wheelchair

APW Air Powered Wheelchair. Team: Aaron Breault Bryant Langley Keith Willis. Background. Electric Wheelchairs have limited range Require a recharge that takes 8-14 hours Have difficulties functioning in wet and hot conditions Short battery life of abou t 6 months

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APW Air Powered Wheelchair

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  1. APWAir Powered Wheelchair Team: Aaron Breault Bryant Langley Keith Willis

  2. Background • Electric Wheelchairs have limited range • Require a recharge that takes 8-14 hours • Have difficulties functioning in wet and hot conditions • Short battery life of about6 months • Battery replacement cost of $240 or greater

  3. Problem Statement • To design a pneumatic powered wheelchair that has the capability to be “refueled” quickly • Has to have the ability to move a person of 300 pounds at least • Has to incorporate variable speed control • Needs to be able to be reversible • Needs to be able to achieve a maximum speed of 10 mph • Needs to be able to be controlled precisely

  4. Different Types of Motors • Radial Piston • Axial Piston • Rotary Vane

  5. Our Solution • Inline Pneumatic Piston motor • Stepper Motor controlled steering • PLC control • Air tank with flow rate control and capacity monitoring system

  6. System Diagram Aaron Bryant Keith Steering System Pressure & Flow Rate Control System Pneumatic Motor Control System

  7. System layout AirPiston Air Tank Connectingrod Flow rate controller Chair Stepper Motor Joystick Controller Crank shaft Airsolenoid Steering Wheels Driving wheels

  8. Design

  9. Budget

  10. Schedule

  11. Questions

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