First Cable-Free Elevator Zooms Horizontally and Vertically Using Maglev Tech(technologyreview.com)
technologyreview.com
First Cable-Free Elevator Zooms Horizontally and Vertically Using Maglev Tech
https://www.technologyreview.com/s/608167/worlds-first-cable-free-elevator-zooms-horizontally-and-vertically-using-maglev-tech/
6 comments
One function of elevator cables is the emergency brake system (fail closed) — hope the power in this mag system is really really redundant!
They have emergency batteries, and a mechanical brake if those fail, just like regular elevators.
Please not. I wouldn't want to put my life in the hand of a (hopefully charged) battery. Any failsafe in an elevator must be mechanical and work with total loss of power. Anything else would fail at some point. This happens with other product at some points. But elevators are one of the few products trusted by nearly everyone because they never kill anyone.
"and a mechanical brake"
This is what you want, they built in into their product.
This is what you want, they built in into their product.
Maybe they are based on electropermanent magnets - ie. defaults to on, current switches off.
I'm not sure how the elevator works, but if you've ever tried to toss a magnet down a copper tube, it appears to defy gravity - no electricity involved. Something similar could work to create a "fail-proof" elevator.
It could still have the type of safety brake that mounts under the car and engages when excessive downward motion is detected.
I'm guessing there is a mechanical failsafe in place, but I want to see test data proving it works before I get in one of these
"One function of elevator cables is the emergency brake system "
With this maglev system (as with conventional elevators, trains and trolleys), there is a speed governor system. When the governor spins too fast, the centrifugal force activates a braking system.
With this maglev system (as with conventional elevators, trains and trolleys), there is a speed governor system. When the governor spins too fast, the centrifugal force activates a braking system.
How does this behave in the event of a power failure?
I'm curious to learn about the routing algorithms for this -- more precisely, how they differ from 1-d elevator scheduling routines.
Going horizontally and vertically in an elevator is like playing side scrolling games but this time you are inside the game! Very exciting!
5 times as expensive to install, and looking at all those moving parts probably 10 times as epensive to maintain.
That's only for the first version. It's not unlikely that they can compete by price in the future. First versions of a new technology are (nearly) always more expensive than the existing, mass produced product.
Elevators are a huge constraint in tall buildings, something like this could have a dramatic impact on overall building costs.