Design and Fabrication of Electromechanical Power Attachment Wheelchair

Being one of the most common modern day assistive device, a wheelchair provides mobility access to a specific group of individuals who carve for mobility, for example a person with spinal cord injuries muscular dystrophy etc. One billion people or roughly 15% of the world population is suffering fro

Project Title

Design and Fabrication of Electromechanical Power Attachment Wheelchair

Project Area of Specialization

Mechanical Engineering

Project Summary

Being one of the most common modern day assistive device, a wheelchair provides mobility access to a specific group of individuals who carve for mobility, for example a person with spinal cord injuries muscular dystrophy etc. One billion people or roughly 15% of the world population is suffering from significant disability. These people are at the center stage of experiencing discriminations and rejections at various platforms they may engage to such as education, employment that directly results in poor health outcomes, lower employment and high poverty rates. The project aims to deliver a power attachment wheelchair that would provide roughly three times the speed a regular electric wheel chair provides. This core objective would provide the people with disability to travel with more comfort and would be a definite time saving device. The power attachment can be manually attached and detached from the wheelchair in order to provide the user the access to either use the device as a regular wheelchair and when necessary, as a combined power attachment wheelchair which would give a three time speed increase.

Project Objectives

The objective of this project is to provide an electromechanical power attachment wheelchair that would provide three times the speed which is equivalent to adequate speed of a motorcycle. This speed enhancing feature would provide the users with roughly more travel speed than a regular electric wheelchair and hence would be certain time saving assistive device. With this feature, the users would also be able to move through the pathways easily and effectively as the power attachment unit consists of a handle bar which results in easy maneuvering. This power attachment unit would be easily attachable and detachable with the wheelchair through easily coupling. This coupling feature enables the users to use the device either as a wheelchair alone or as a combined power attachment wheelchair unit to avail increased speed.

Project Implementation Method

Project development will start with theoretical studies and calcualtions followed by prototyping and development which will be followed as follows:

• Theoretical studies
• Theoretical calculations
• Design development 
• Development and fabrication
• Testing and calibration 
• Improvement and debugging 

Benefits of the Project

The desired electromechanical power attachment wheelchair would provide the following benefits and perks:

• Three times the speed than regular electric wheelchair
• Easy power attachment and detachment from the wheelchair
• Increased handling through handle bar fitted on power attachment 
• Increase in overall mobility and accesibility

Technical Details of Final Deliverable

The proposed parameters and specification are as follow:

• A pre-manufactured wheelchair will used as the base for attachment
• Power attachment will transmitt a power of 500W using a BLDC motor.
• The motor will be powered by a dry-cell battery of 7V.
• Front mounted forks will be installed for comfort.
• handle bar will have throttle for speed control as well as brake lever.
• Coupling for wheelchair, motor and steering wheel will be manufactured as per the requirement(s). 

Final Deliverable of the Project

Hardware System

Core Industry

Transportation

Other Industries

Health

Core Technology

Others

Other Technologies

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

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