Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

The design of a smart controller for electric powered wheelchairs

Salatin, B and Grindle, G and Hongwu, W and Cooper, RA (2008) The design of a smart controller for electric powered wheelchairs. In: UNSPECIFIED UNSPECIFIED, 133 - 138. ISBN 9780889867406

[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)


Electric powered wheelchair (EPW) controllers have not seen substantial improvement since the introduction of the microprocessor. There are no features that warn the driver of danger or help keep the EPW under control in adverse conditions such as slipping or tipping. With an estimated 300,000 EPWs in use in the United States and the population of older adults increasing rapidly, the need for safer control systems for EPWs is a priority. This paper presents in detail the electronic, mechanical, and software design used in developing a smart controller for EPWs. A single board computer provides the computational power and storage space needed to execute normal operations, complex safety algorithms, and extensive data logging. An array of sensors connects to the computer, providing feedback on velocity, inertia, caster angle, and obstacle range. A rugged aluminum enclosure protects the electronics and provides connectors for all the sensors. A real-time operating system is used as the basis for programming. The software architecture uses a 3 level hierarchical structure that organizes tasks based on periodicity, priority, and computational load. The goal of this project is to demonstrate what can be done with an EPW to enhance the mobility, participation, and safety of its occupant.


Social Networking:
Share |


Item Type: Book Section
Status: Published
CreatorsEmailPitt UsernameORCID
Salatin, B
Grindle, Gggg3@pitt.eduGGG3
Hongwu, W
ContributionContributors NameEmailPitt UsernameORCID
EditorCooper, Rory Arcooper@pitt.eduRCOOPERUNSPECIFIED
Centers: Other Centers, Institutes, Offices, or Units > Human Engineering Research Laboratories
Date: 1 December 2008
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Proceedings of the 4th IASTED International Conference on Telehealth and Assistive Technologies, Telehealth/AT 2008
Page Range: 133 - 138
Event Type: Conference
Institution: University of Pittsburgh
Schools and Programs: School of Health and Rehabilitation Sciences > Rehabilitation Science and Technology
Refereed: Yes
ISBN: 9780889867406
Date Deposited: 26 Nov 2012 16:14
Last Modified: 02 Feb 2019 14:56


Monthly Views for the past 3 years

Plum Analytics

Actions (login required)

View Item View Item