Design of an integral computer-based wheelchair controller/linear synchronous motor system.

Area of Science:

• Robotics and Control Systems
• Biomedical Engineering
• Mechanical Engineering

Background:

• Traditional powered wheelchairs often have complex drive systems.
• Advancements in microprocessor technology enable sophisticated motor control.
• Integrating controllers and motors offers system-level advantages.

Purpose of the Study:

• To demonstrate the benefits of designing computer-based motor controllers with innovative motors.
• To detail the design and development of an integrated controller/drive system for powered wheelchairs.
• To showcase the potential of microprocessor-based feedback motor controllers for advanced applications.

Main Methods:

• Design of a computer-based controller/drive system for powered wheelchairs.
• Selection and integration of a linear synchronous motor (LSM) for its efficiency and suitability.
• Development of microprocessor-based feedback control for precise LSM operation.

Main Results:

• The integrated system leverages the high efficiency (90%+) of LSMs.
• Microprocessor controllers enable precise, cost-effective speed control of LSMs.
• The system offers a "no-moving-parts" drive, enhancing reliability.

Conclusions:

• The combination of microprocessor-based controllers and LSMs creates a highly flexible powered wheelchair drive system.
• This integrated approach can be programmed to meet diverse user needs.
• This technology has the potential to significantly improve the experience for over 200,000 powered wheelchair users.