]> 2026-04-04T22:17:45+02:00 Publications:Torque Sensor Free Power Assisted Wheelchair 500 en <p>A power assisted wheelchair combines human power, which is delivered by the arms through the pushrims, with electrical motors, which are powered by a battery. Todays electric power assisted wheelchairs use force sensors to measure the torque exerted on the pushrims by the user. This leads to rather expensive and clumsy constructions. A new design, which only relies on velocity feedback, thus avoiding the use of expensive force sensors in the pushrims, is proposed in this paper. The control design is based on a simple PD-structure with only two design parameters easily tuned to fit a certain user; one parameter is used to adjust the amplification of the user’s force and the other one is used to change the lasting time of the propulsion influence. Since the new assisting control system only relies on the velocity, the torque sensor free power assisted wheelchair will besides giving the user assisting power also give an assistant, which pushes the wheelchair, additional power. This is a big advantage compared to the pushrim activated one, where this benefit for the assistant is not possible.</p> 10th International Conference on Rehabilitation Robotics, June 12-15, Noordwijk, The Netherlands http://dx.doi.org/10.1109/ICORR.2007.4428421 http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239017 157 ICORR '07 : 2007 IEEE 10th International Conference on Rehabilitation Robotics : June 12-15, Noordwijk, The Netherlands Conference Paper International Conference on Rehabilitation Robotics ICORR 151 Torque Sensor Free Power Assisted Wheelchair 2007 2016-09-30T20:40:09Z 2457662.3612153 Torque Sensor Free Power Assisted Wheelchair 500 0 plainlist list 1 [[:Publications:Torque Sensor Free Power Assisted Wheelchair]] Torque Sensor Free Power Assisted Wheelchair# QUERY5c4c5f076e88140827fee880890e0368 500 [2,"smw-datavalue-property-restricted-annotation-use","Publisher"] Torque Sensor Free Power Assisted Wheelchair# ERR6c155b5d70b69ddb590b4f2e73389c2a 500 [2,"smw-datavalue-property-restricted-annotation-use","Author"] Torque Sensor Free Power Assisted Wheelchair# ERRe24f17e090c98448f3de99d03182b7b6