Open Access. Powered by Scholars. Published by Universities.®
Acoustics, Dynamics, and Controls Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Acoustics, Dynamics, and Controls
An Advanced Controller For A Semi-Active Wheelchair Suspension, David J. Smith
An Advanced Controller For A Semi-Active Wheelchair Suspension, David J. Smith
Master's Theses
An Advanced Controller for a Semi-Active Wheelchair Suspension was designed, built and tested. The suspension consisted of a Goodyear 1S3-011 air spring, IQ Valves high speed proportional solenoid valve, and a custom made accumulator. Several controller designs specific to semi-active suspensions were designed and tested. The controllers investigated were skyhook, acceleration driven damping, and a combined control law employing both a dual and single sensor version. The implementation of skyhook control suffered performance degradation from the idealization due to particular elements of hardware, however acceleration driven damping showed a marked and statistically significant improvement over skyhook control, in hardware, by …