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Breakfast of runners-up.
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Small electric motors in the wheels of roller skates, blades, skateboards, Big Wheels, kid's bikes, go-karts etc. An electronic controller that measures speed and slope, with a user (or parental unit) adjustable speed limit.
At normal speed, the motors do nothing except power the controller and
feed it speed data. When max speed is exceeded, the controller uses the motors as regenerative brakes, pulsing the braking so as to supply the necessary amount of braking to maintain a safe speed whilst still allowing forward/downhill travel.
The energy generated by braking could be dumped into a resistive load and wasted as heat, or stored in a small bank of supercaps or batteries (optional upgrade) so you can still coast up that next hill.
The battery option would be called the Up Grade Upgrade.
Electric Brakes
Electric_20brakes_2...r_20roller_20skates
21Q's inspiration [BunsenHoneydew, Oct 29 2006]
Short name, e.g., Bob's Coffee
Destination URL.
E.g., http://www.coffee.com/
Description (displayed with the short name and URL.)
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Sounds kinda like my electric brakes. |
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[phlish] There's a time and a place
for coasting at high speed, and a
time and a place for not. Parents
could buy this system, pre-
installed or aftermarket, to
reasssure themselves that little
Jarod isn't going to lose control on
that big hill between home and
school. |
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What I'm proposing is more akin
to cruise control than straight
brakes. Force would be applied
automatically, and only as much
as necessary to limit speed.
Normal, driver-controlled brakes
would still need to be fitted for
actual stopping. |
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The regen battery storage is just
an option, to (less than 100%)
make up for the lost momentum. |
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[21 Quest] Yes, they were inspired
by your electric brakes. I'm sorry,
I should have provided a link and
credit. |
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Bunsen, I wasn't worried about the credit, so don't fret. I like the idea, so I didn't bone it. My bun was pending on me trying to understand the difference between this idea and mine, and I think I see what you were getting at with this. Good idea! + |
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[-] for the parental controlled unit. I can see a perfectly valid logic behind the idea, I just think that it would be misused by over-protective parents who wouldn't want to see their precious little angel using a bike/skateboard/whatever at more than a walking pace. |
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That and the fact that this idea just strikes me as another 'limit the maximum speed on vehicle x' ideas, only transferred to children's vehicles. |
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//Parents could buy this system, pre- installed or aftermarket, to reasssure themselves that little Jarod isn't going to lose control on that big hill between home and school.// |
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Thats how kids learn. How are they going to learn to be responsible adults without learnig from their own mistakes. I don't think our children should live in a santised environment like this. How about the good old fashioned "that hurt, I won't do that again!". |
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Sorry, but I cannot ignore the evidence. The above annos are too correct for me to go with this. |
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I got serious physical damage while rolling downhill on my rollerskates when I was 13. When I became concious again, I learned that my injuries didn't come from the super speed I achieved (that was exciting!) but from that sudden stop at the end. Who put that wall there, anyways? |
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Once, my friends and I decided to scrub out a few old-fashion metal trashcans and see who could roll the farthest down a hill. I got the most distance... and the biggest lump on the side of my head when I hit a rock. Ouch! |
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Needless to say, that was probably the most half-baked scheme I ever came up with (even if I didn't come up with it by myself). |
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