Electric Motorcycle Inventor Crashes at Wired Conference 337
not5150 writes "The inventor of the electric 'KillaCycle" motorcycle was taken to the hospital for x-rays after demonstrating the vehicle to reporters. Bill Dube, a government scientist during the day and bike builder at night, attempted a burnout in front of the Los Angeles Convention Center during the Wired NextFest fair. Fueled by the "most powerful" lithium-ion batteries in the world, the bike accelerated uncontrollably into another car. There's a video interview (thankfully before the crash) and footage of Dube crashing."
Electric Motorcycle + Wired (Score:5, Funny)
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0-60 in less than a second (Score:2)
At that rate of acceleration, you'd be at the top speed in less than 3 seconds. Then what? Then the engine gives out? Governor kicks in? The tires blow up?
As for the driver in question. Stupid is as stupid does.
Re:0-60 in less than a second (Score:4, Informative)
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If you race over the quarter, you would top out about 2/3 down it.
Wow, a "Drag" bike crashes on "TGVideo"... (Score:5, Funny)
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That thing is fast.
Re:0-60 in less than a second (Score:5, Informative)
Of course you can. Do you have an electric fan? Does it always run at full speed? Or is there a little switch that lets you adjust the fan speed?
My understanding is that when you turn an electric engine on, that's it, full power full torque.
No. Electric motors can do that (which is nice in many applications), but they don't have to do that. It depends on how much voltage/current goes to the electric motor, and it's pretty easy to control voltage & current.
Re:0-60 in less than a second (Score:5, Informative)
You can't easily apply gradually more power with high-power engines running on AC.
There are numerous tricks like switching configuration of the coils, using high-power thyrystors etc. You can't just put some resistance because it would be enormously wasteful. Some railway engines use "convert 1-phase AC from the wire to DC, then convert back to three-phase AC of desired frequency" making them actually more efficient than running on 1-phase AC straight from the wire.
But not in this case. The batteries produce DC. They can be switched one at a time to limit voltage(->torque) if it's a DC motor, or the conversion to AC can be freely configured providing frequency (->RPM) just as desired if the motor is AC.
(also note using all kinds of resistors, pots and other "power drains" for limiting current/voltage when such powers are in use, are useless - they would have to dissipate (and waste) enormous amounts of power. Devices that limit the "average" voltage by dutycycle method ( x% of a milisecond on, 100-x% of a milisecond time off => x% power) are much better but not every kind of end-target device can accept this kind of power, plus it generates lots of electromagnetic noise from all the instant on-off action )
Simply put, getting limiting voltage by a half in a 5V 10mA DC configuration is trivial - wasting 0.25W of power is not a problem. In 500V 10A DC configuration is very tricky. Dissipating 2500W is not really an option.
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Listen to what he explains in the beginnig of the video, about using a Palm Pilot because it is immune to the electromagnetic interference....
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pulse width you increase or decrease the speed of the motor.
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Anyway, you mentioned the railway engine's AC-DC-AC drive. Now, to run on DC, just skip the first rectifier: you can run the inverters directly on DC. In fact, many railroads do just that. There are lower-powered inverters and motors available for lighter-duty applications. Did you know your average "brushless DC" CPU fan is in effect an induction motor with an integrated drive?
So, if
Re:0-60 in less than a second (Score:4, Insightful)
Taking that in mind when I read this...I thought "Ok, I could maybe get by with a fairly silent car, but, NO WAY would this make a motorcycle fun"!!
I mean, that IS a huge part of the fun of a big cruiser bike. I'm not talking about straight pipes here...I know those annoy some people. I like loud things, but, I do try to respect my neighbors. But, really, first thing I think of when I get a new bike...is what aftermarket pipes I'm gonna get...to give me that rumble as I drive it.
I think an electric bike would be kinda boring in that respect. Sure, I guess you could sync some mp3's of good engine/exhaust notes with the motor...but, still.....something would be missing.
Hell..many people buy the Harley JUST for the "potato...potato...potato.." engine note and rumble. Didn't they even try to patent that?
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An electric car at high speed is still going to emit a fair amount of noise. Modern gasoline and even diesel engines are very quiet even at low speeds.
For the motorcyclist's 'being noisy is safer', well, you still have to worry about deaf people, even half-deaf elderly who are running around in a relativly soundproofed car. With the radi
Re:0-60 in less than a second (Score:5, Informative)
You can vary the amount of power sent to the motor, it is also possible to have motors with switchable windings to give different torque and speed settings. In the case of a vehicle such as a car or motorbike an electric motor can be connected via the same sort of gearbox you'd use with an internal combustion engine. Indeed the only real difference between a regular motorcycle and an all electric one is that the latter wouldn't need a starter.
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Apart from what have been said already, I'd like to add that power is not the same thing as torque.
Re:0-60 in less than a second (Score:5, Funny)
and vice versa
Re:0-60 in less than a second (Score:4, Funny)
Re:0-60 in less than a second (Score:5, Funny)
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Re:0-60 in less than a second (Score:5, Insightful)
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Re:0-60 in less than a second (Score:5, Informative)
As to the time, 0-60 in 1 second is standard for drag cars or bikes running in the 7s on the quarter mile.
1/4 mile times like that are pretty good for an electric vehicle though.
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It's storage that's the problem, and on such short distances
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Dear Richard Hammond,
If those wacky producers and Clarkson ask you to test ride a motorbike, JUST SAY NO.
Regards,
A Friend
some pictures (Score:5, Informative)
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More seriously, though (Score:5, Insightful)
The fact that he hit a parked minivan tells me quite a bit about the kinds of stupid risks he was taking. He's lucky that he's the only one that got hurt.
Re:More seriously, though (Score:5, Insightful)
In fact, the only stupid risk he took was not wearing a helmet. What sort of a dick rides a bike without a helmet? (Hint: 'a freedom loving dick' is not an acceptable answer.)
Re:More seriously, though (Score:5, Insightful)
I suspect, being electric, this wouldn't have a clutch.
In fact, the only stupid risk he took was not wearing a helmet. What sort of a dick rides a bike without a helmet?
To be fair, he was attempting a burnout - going over the handlebars at high speed isn't usually a big hazard when you're stationary with the back wheel spinning.
Re:More seriously, though (Score:5, Insightful)
Re:More seriously, though (Score:5, Informative)
On diesel railway locomotives, they have a diesel engine that generates electricity, which is then used to power electric motors on the wheels. One reason for this arrangement is that using electric motors like this means you don't need a clutch and it's more compact than a fully mechanical transmission for such huge power would be.
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1. If you had direct gearing from the shaft to the wheel, the engine would need to be able to accelerate from 0 RPM. Combustion engines cannot turn at less than certain speeds while still maintaining ignition. In English this means you need a clutch to pull of from standing.
2. Combustion engines have relatively low ceilings on maximum RPM. So you need to change gears to go faster. This is why manual drive cars have that third pedal - you have t
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Point being, you *still* need gears using a rotary engine in a car, so both points still stand 100%.
Re:More seriously, though (Score:4, Funny)
I'm aware that's a synonym for freedom loving.
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And who drives up insurance costs for the rest of the riders who do wear helmets.
Re:More seriously, though (Score:4, Informative)
Complete myth. I can attest to this. We used to be free in Louisiana to choose to wear a helmet or not. New Gov. Blanco (aka Blank-Stare after katrina) repealed the law.
We now have to wear helmets. However, the insurance rates for motorcycle riders (or even auto) did not go down one cent.
Re:More seriously, though (Score:5, Insightful)
Re:More seriously, though (Score:5, Insightful)
So someone who permits a 10 year old to ride with him without a helmet is being a "dick". Someone who decides for himself not to wear one is at worst a "fool".
Re:More seriously, though (Score:5, Funny)
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Go away, your nerdy definitions are cluttering up my pornographic search results.
Re:More seriously, though (Score:4, Funny)
Not that there's anything wrong with that...
Re:More seriously, though (Score:5, Funny)
They call that sort of dick "organ donor."
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Not only do the professionals put a lot of effort ensuring that things are a safe as possible for anyone involved they also have emergency equiptment and crew there for the unlikely event of something going wrong.
Without a helmet!!! (Score:2, Insightful)
Re:More seriously, though (Score:5, Funny)
And yes, I'm serious, not mocking.
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KillaCycle? (Score:5, Funny)
Finally (Score:3, Funny)
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Idiot (Score:5, Insightful)
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That being said, good luck to the guy. Balls, money and heart where his mouth is and all that.
Re:Idiot (Score:5, Funny)
Thankfully it wasn't that bad a crash !
Re:Idiot (Score:5, Funny)
Calling the thing "KillaCycle" probably wasn't the smartest of ideas either. It sounds more like the title of a low budget horror movie...
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Scientist are just you and me. (Score:2)
I know high level professionals who as soon as crossing the state border take their helmets off. Some ride around locally with party helmets (the fake looking ones or just skull caps). After all "THEY" are entitled to do as they see and "THEY" are not going to get hurt and "THEY" are too skillful to need it and "THEY" are
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I know a highly skilled motorcyclist who forgot to take his padlock from the rear wheel and fell to the left side when trying to leave the parking spot. Please note that he fell at 0 Km/h velocity.
He had all the protections in place, helmet, leather jacket and leather gloves, but his left elbow hit his left abdomen causing the spleen to rupture. He didn't notice anything, but half an hour later he started feeling incapacitating pain and passed out. He spent two weeks in the hospital and lots of time at
Is it just me? (Score:2, Funny)
Just needed stiches (Score:5, Informative)
from the comments on the linked page:
I wasn't wearing a helment, because we did not intend the bike to even move!
We were spinning the tire in soapy water. The tire unexpectantly gripped, (water ran out?) and launched the bike. I couldn't get it shut down as quickly as I would have liked. I had to release the front brake to fully untwist the throttle. I then managed to slow it down to about 20 mph.
The positive message here is that when we crunched the battery pack, NOTHING happened. No smoke. No flames. Not even sparks. Not only are these cells more powerful, they are are the safest possible for automobiles.
Also, there was NO ONE in front of the bike or in the possible trajectory of the bike.
Bill Dube
Re:Just needed stiches (Score:4, Funny)
Best wishes, but come on buddy, common sense (Score:5, Insightful)
But come on buddy, a little common sense, and remember you're a role model. *You* might have known what you're doing but lots of idiot teenagers would have been watching the footage of you doing this gig and other ones similar to it. They might take home the message that it's ok not to wear helmet and body armour. The fact that something did go wrong showed that you weren't completely in control.
Please, even if you're happy taking those risks, wear a helmet and body protection. You wouldn't use DIY power tools at home without safety gear so why take risks with your superbike? You seem like a nice guy, stick around for a bit longer so you can pick up your Darwin award and don't encourage idiot teenagers (or adults) to think its ok to do burns on stationary bikes without protection. You've just proved that it's not safe...
Re:Best wishes, but come on buddy, common sense (Score:5, Funny)
Won't somebody PLEASE think of the CHILDREN!!!???
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My wife has a story from her college days about some guys who decided to try making nitroglycerin. This is a process that obviousl
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And your comment about being a "role model" is inane. Are you saying no one should take any risks because stupid people might copy them? Berate the man for endangering his own safety if you wish, but get off your high horse.
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Cool bike, man!
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That being said, you probably should change the name of the bike.
Re:Just needed stiches (Score:4, Informative)
The Slashdot crowd is already familiar with exploding laptop batteries, and electric RC news groups are filled with horror stories of houses and cars burning down from LiPo batteries that "randomly" burst into flame. Just this weekend my brother-in-law and I flew our electric RC planes with LiPo packs in them. On the way back into the house, he dropped a battery pack on the sidewalk from about 3 feet in the air. It instantly started spewing smoke and flames, and kept going for about a minute. We were lucky that it was sitting on concrete.
The moral of the story is, I wouldn't trust anything as volitile as the LiPo's that I use for RC sitting between my legs or in the trunk of my car. While the injury is unfortunate, the publicity of a safe LiPo might do good things for the KillaCycle.
In other news (Score:5, Funny)
Free press? (Score:5, Insightful)
GLAYVIN! (Score:5, Funny)
-----
Frink tests his new flying motorcycle.
Frink: Hello, son. You want to try the flying motorcycle I just invented?
Bart: No time.
Frink: Okay.
Later, Bart loses his skateboard in the wet cement.
Bart: I could sure use that flying motorcycle now.
Frink flies by.
Frink: You had your chance. Whoa-hai.
-----
Quote of the Video (Score:5, Funny)
I was already going "oh dear..."
Killa-Minivan (Score:4, Insightful)
Before you flame, I'm aware he wasn't wearing a helmet, was showing off with a burn out, was riding an prototype vehicle, and that the minivan was a parked. But instead of addressing the rare occurance this incident was, I wanted to address a common occurance, and provide a solution that we could actually take steps toward achieving.
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I agree pretty strongly with you on this. From what I've read massive vehicles aren't any safer for the people riding in them, and a lot more dangerous for everybody else. Not only that, but a lot of people who drive them drive them because they think they're safer, then drive like idiots because they think they can't get hurt. Also, many people who get them are just generally really insecure about their ability to drive which will make them bad drivers even if they don't feel invulnerable.
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Before you flame, I'm aware he wasn't talking on a cell phone. But instead of addressing the rare occurance this incident was, I wanted to address a common occur
Then what do you think the topic is? (Score:2)
Re:Killa-Minivan (Score:5, Informative)
I got a twelve day stay in an ICU, four major surguries, four months in the hospital, a year of rehab, more than a half million US dollars in medical bills, and pain that I would never wish on anyone. She got a ticket for failure to yield right of way and a new SUV.
If you want to ride a bike on the highways in the U.S. beware that the consequences of the bad judgement of the drooling idiots you share the road with is extremely high. The helmet will ensure that you remain concious throughout the ordeal... if you are lucky... and if you aren't, at least your wife, kids, parents, or whatever will be able to have an open casket funeral.
Other Videos (Score:5, Informative)
There are a lot of videos of the thing in action at http://video.google.com/videosearch?q=KillaCycle [google.com]. The thing is clearly [google.com] not [google.com] a scooter [google.com]
It's really a bummer that he decided not to wear a helmet.
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well... (Score:2)
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Too bad the batteries are sooo big, it's a hell of a drag bike but i don't think it's a very agile circuit runner.
Still, this gets my hopes back up. Up until now I could've never imagined a blazing fast motorcycle that runs on electricity. By the time I hit my mid-life crisis I hope they've marketed some of these
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yeah, and banned those stupid cars too! (or was it a van?)
Electric has grown up. (Score:5, Funny)
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The first cars to break through the 100km/h barrier as well as the first cars to break through the 100mph barrier were electric. They also crashed nicely on quite a few occasions. If it was not for the first world war which rapidly accelerated petrol engine development and allowed it to overtake the electric and steam competition we would have been all riding in electric vehicles today.
hmm. (Score:3, Interesting)
I'm still waiting for my live action Akira bike
http://www.burningart.com/meico/moto/akira/ [burningart.com]
http://translate.google.com/translate?u=http%3A%2F%2Fplusd.itmedia.co.jp%2Flifestyle%2Farticles%2F0404%2F02%2Fnews040.html&langpair=ja%7Cen&hl=en&ie=UTF8 [google.com]
http://negatendo.net/kmc/en_neo_fukuoka.htm [negatendo.net]
And the eye candy who was hired to sit on the bike was quite nice. Sorry that's amazingly un-PC of me and I apologize.
May I be the first to..... (Score:2, Funny)
Killacycle (Score:2, Interesting)
Name.....
Ever!
KillaCycle (Score:2)
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Seriously, when the tires grabbed that sucker looked like it was shot out of a slingshot.
No helmet? (Score:4, Insightful)
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Hey, whatever works...
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Most real innovations in the course of this (U.S.A.) country's history have been made by amateurs and hobbyists. Such "citizen scientists" have had a tremendous impact on most areas of science and industry and have only been supplanted (in their rate of discovery) in the past few decades by corporations and research labs associated with educational institutions. Instead
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