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I was curious so looked at a few power wheelchairs...It's wild how expensive they are, especially considering the advancements in electric mobility tech elsewhere. You'd think they'd share some components with e-scooters, e-bikes, or even electric cars – motors, batteries, controllers. Are the powertrains and control systems in power wheelchairs really that specialised? Or is it another case of the medical device mar…
I'm a guy who has disassembled and reverse engineered a standard Jazzy power chair, and what I noticed was the attention to detail regarding failures. The chair is thoroughly designed to shut down at the slightest bit of trouble. There's some redundancy in things like the controller, where it used redundant hall effect sensors that were identical to the others, but ran in an inverted power profile, to detect any weir…
This makes me actually appreciate reliability in e-vehicles motor cutoffs etc. I keep thinking if this could have been avoided with a better quality e-bike or if actually it would be even worst with a cheaper one.
Which makes one think, how often a wheelchair with cheap e-scooter parts would crash people into staris, cars etc