this post was submitted on 13 Jun 2024
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[–] Death_Equity@lemmy.world 5 points 5 months ago (1 children)

It was Bose. Yes, the premium sound system producers. It never went anywhere, despite being practical magic, because it added around 2,000lbs and cost six figures.

They also developed a semi-tractor seat using the same sort of voodoo, which is on the aftermarket for around $5k installed.

[–] blackluster117@possumpat.io 1 points 5 months ago (1 children)

I've started seeing magnetic suspension offered as a luxury option in nicer cars, wonder if it's derived from that Bose system. I remember watching the demo from the 90s, mind-blowing.

[–] Death_Equity@lemmy.world 2 points 5 months ago

Not the same sort of thing. Bose's "magic carpet" suspension used linear electromagnetic drivers and sensors to move the suspension to compensate for the road conditions detected. They took speaker drivers on steroids and did noise cancellation on bumps and dips in the road.

Magneride and similar use an electromagnetic coil to adjust dampening by acting on a ferrofluid, which changes how hard or soft the suspension is. You want a stiff "sport" suspension, fluid is high viscosity and harder to move. You want a soft "comfort" suspension, the fluid is lower viscosity and moves easily.