P R O J E C T "Y" KILLABICYCLE World record 17 june 2009

My bike is well under the UK 40kg rule (<70lbs total bike weight), has functional pedals, uses a stock bicycle frame without as much as an extra hole drilled into it, or weld placed on it. It has a 1,800wh battery that can discharge at 50,000w, and has 18hp of electric motor. Can hold 60mph up minor hills, gearing limited 64mph on flat with me sitting in a normal position, not even tucked down.

Does it meet the rule of being an electric bicycle? What sort of speed verification need to be required to claim the record? Do I call Guiness book of world records?

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liveforphysics said:
My bike is well under 80kg, has functional pedals, uses a stock bicycle frame without as much as an extra hole drilled into it, or weld placed on it. It has a 1,800wh battery that can discharge at 50,000w, and has 18hp of electric motor. Can hold 60mph up minor hills, gearing limited 64mph on flat with me sitting in a normal position, not even tucked down.

Does it meet the rule of being an electric bicycle? What sort of speed verification need to be required to claim the record? Do I call Guiness book of world records?

fullbikes2.jpg
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I envey your bike!!! lol

nice build .. very light; hight torque .. and off road capable!!

i don't know how the dual motor would be fair against a single motor ..

maybe doc could have dual 5302's instead on the next run!

-if you off road long enough how hot do those mini controllers get?
-do you think you could pull the bus without goingbang!!

-steveo
 
The little RC controllers were never able to hold up while charging up hills at 50-60mph. They have no current limiting ability, and the battery pack can deliver +600amps, so they turn into expensive plasma flares.

I mounted hall sensors on the RC motors and use dual very beefed up infinion controllers. I can get my 500amp ampmeter to read about 200-220amps at ~77v. I hate the soft start feel on the controllers so much that I don't even ride the bike anymore. When Methy gets proper programming software in English for the 18FET controllers, then I will upgrade, and I'm assuming with instant-start, the bike will be tolerable to ride.

Could it tow a bus? Umm... I don't know. If I wanted to tow something, I would swap my 1:8 gearing for something using dual planetary boxes right off the motors, maybe 1:100 gearing, so I could easily have a few thousand ft-lbs of torque, but that would require making my own hub with a well secured sprocket, and a solid disk to weld up to the rim to hold the torque, and it would be quite pointless on a bicycle. Not really trying to make a tow truck, though I do think it can provide a few hundred pounds of pull the way it sits now.


But! This is Doc's thread, and i don't want to clutter it up anymore than I all ready have! I would like to know who I contact to make a formal challenge of the record though :)

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steveo said:
5305 on 20"!!
can you feel the torque!!!
did you use your 18 fet controller doc? or the old trusty 12 mosfet x lite you have!!
What was your amp draw like? .. how long where you woot for?
-steveo
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He may have used the 12fet to tow the bus (since he used his every-day bike) but if you look at the pictures of the top-speed bike he ran an 18 fet Infineon kit that I sent him.

He did choose the limit the current to a very low value though.... I was expecting to see 200A off the line and 150A down the track. That is what I used to hit with my 5305.

-methods
 
Tiberius said:
liveforphysics said:
My bike is well under 80kg...
Click to expand...

80 kg? = 176 lbs

(There's an irony here in someone in England working in kg all day and only using lbs when dealing with people in the New World.)

Nick
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Oops! Typo :) My bike is just under 70lbs as it currently sits with it's battery and everything ready to ride. I will correct my typo above :)
 
hi doctorbass
congadulations,you did it big time!!!you worked very hard and deserve all the praise :D i wonder since that Ebike is an official world record holder of being the fastest on EARTH,,,what kind of $$$$ would it fetch on EBAY???any bidders here?also hows it feel to be the FASTEST EBIKE MAN ON THE PLANET :mrgreen:
 
maxwell65 said:
hi doctorbass
congadulations,you did it big time!!!you worked very hard and deserve all the praise :D i wonder since that Ebike is an official world record holder of being the fastest on EARTH,,,what kind of $$$$ would it fetch on EBAY???any bidders here?also hows it feel to be the FASTEST EBIKE MAN ON THE PLANET :mrgreen:
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Thanks Max,

We had not enough time to prepare everything perfect like i would have to so battery was not 100% charged, fairing was in the alfa version.. still nothing tested in wind tunel like i wanted to do ( i have some great contact for that :wink: ) and i thing that the controller parameters was not preperly configured.. ( i have not touched it form now.. the usb plug is still not soldered.. :? )... and i should have tested that in reverse direction too on the lane.. to get the average speed inb both direction to "cancel" the wind effect a bit but not perfectly..

So there is still alot of things to ameliorate and that was only the very first hig speed test.

All media that was there (TV news reporter, newspaper reporter, friends, familly, i had a bit difficulty to concentrate and and clear my mind...)

I'll do some next tests during this summer and will keep you updated for sure.

I also got the DVD of every video sequences that TVA local TV chanel filmed about me during that day.. so i'll post some great video catch in the next days

Also maybe i'll try serie parallel 5303 / 5301.5 :twisted: with my backup motor

Doc
 
Doctorbass said:
Also maybe i'll try serie parallel 5303 / 5301.5 :twisted: with my backup motor

Doc
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don't you mean 5303/5306? unless you are going to totaly rewind the motor.

i'm having real fun trying to wire all of the relays inside the stator and not have anything scrape across the sidecovers. ain't much room left in there for 12AWG wire.

rick
 
rkosiorek said:
Doctorbass said:
Also maybe i'll try serie parallel 5303 / 5301.5 :twisted: with my backup motor

Doc
Click to expand...

don't you mean 5303/5306? unless you are going to totaly rewind the motor.

i'm having real fun trying to wire all of the relays inside the stator and not have anything scrape across the sidecovers. ain't much room left in there for 12AWG wire.

rick
Click to expand...


Oh.. you are right... hmm.. i'll need to rewind the motor... scores and satisfying results never come without hard work !!! :lol:

Doc
 
you got a sub 20sec time by babying it off the line using a 5302. could be that a 5304 is all that you need to get you off of the line, and then switch to 5302 to top end.

oh well questions like that are what make this all so much fun.

rick
 
Great job Doc! I think you need to get your GPS recalibrated or something. If you did a 19.7sec quarter mile, that's a 45.7mph average, so shouldn't your top speed be much higher than 58.6mph? Otherwise you would have needed to reach top speed after slightly more than 100m.

John
 
John in CR said:
Great job Doc! I think you need to get your GPS recalibrated or something. If you did a 19.7sec quarter mile, that's a 45.7mph average, so shouldn't your top speed be much higher than 58.6mph? Otherwise you would have needed to reach top speed after slightly more than 100m.

John
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The 1/4 mile time was around 17-18 sec at the best run.
 
In a perfect world with zero wind resistance or rolling friction:

17 second pass on a 290lbs vehicle takes a sustained 11.6hp mechanical HP at the wheel.

18 second pass on a 290lbs vehicle takes a sustained 9.7hp mechanical HP at the wheel.


Can you just take a snap-shot of the time slip? Being a dragracer, I'm very interested to see the relations between the 60' and 330' when compared with ICE setups.

Thanks!

-Luke
 
Nicely done Doc. Lots of great publicity for ebikes!

-JD
 
liveforphysics said:
In a perfect world with zero wind resistance or rolling friction:

17 second pass on a 290lbs vehicle takes a sustained 11.6hp mechanical HP at the wheel.

18 second pass on a 290lbs vehicle takes a sustained 9.7hp mechanical HP at the wheel.


Can you just take a snap-shot of the time slip? Being a dragracer, I'm very interested to see the relations between the 60' and 330' when compared with ICE setups.

Thanks!

-Luke
Click to expand...

i'll try to get a time slip from the past 17 june drag race.


Something important to mention here is that i had problems with the 400m lenght and the right lenght needed to reach the 94.3km/h.

My first goal was not to get the best 1/4 mile time.. but almost the fastest speed i can get.
Knowing that the low speed phase current on a 5302 is VERY HIGH and to avoid blowing it since i had NO backup controller, i started slowly during the first 30-40km/h... so the 1/4 time is directly affected... AND.. that increased the requiered lenght to reach the max speed i was able to do... so the best speed i had was AFTER the 1/4 mile finish line!.. that'S why i wanted to use my GPS.. cause the 1/4 mile max speed recorded was a bit lower than what my GPS and calibrated Cycle analyst had recorded.

I also had a front wind ... :? and you all know that at that very fast speed, the main slowing factor is the wind for more than 90%.

When i came back from the end of the 1/4 lane, , whne i arrived a bit before to the 1/8 line, i decided to push the throttle to the max... until i cross the start line just to show off... then i reached the 94.3km/h..... so what that mean...:

I really think that the 94.3km/h was obtain only when i came back and btw profited to the wind that WAS IN THE SAME DIRECTION than me.

here is a little visual explanation...
 

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Here are the three videos that I know about of Doctorbass's World Record:
http://www.youtube.com/watch?v=xThvXMTMuXA
http://www.youtube.com/watch?v=Mo69jnowhgw
http://www.youtube.com/watch?v=joxyD3hzMfA
Now you wouldn't download them would you! :D
And you wouldn't use ffmpeg to convert them would you, like this:
ffmpeg -i St_phane_Melan_on_AKA_Doctorbass.flv -vcodec mpeg4 -b 800k -g 300 -bf 2 -acodec libmp3lame -ab 128k DoctorbassX.mp4
where X = 1,2,3
You're probably not even using Linux! :roll: :D
 
Doc,

Sorry if something got "Lost in Translation". I believe your speed was FASTER than you think. Even a gps reported speed can be significantly off for such short distances. Only trust a GPS speed as an average over at least 500m or 1km. If you had something between a 17 and 18 sec time in something very close to a 1/4 mile which is 402m, then, especially because you had to go easy on the throttle at the start, you must have had a top speed of over 60mph.

That said, if you want to compare speeds to those from a time slip at Bonneville, then you need a much longer course, because Bonneville speeds are an average over a mile and are an average over multiple runs. I know that your bike is far faster that the record claimed at Bonneville for the fastest electric bike, however, I believe it to be an apples and oranges comparison. Their no pedals bike is one thing, but if their bike was legally a bicycle in the US, which means only 750W.

Regardless, I'm on your side and feel your efforts are greatly beneficial to the e-bike cause as a whole. They are the most energy efficient form of transportation known to man. I just hope I get a few more years of lonely roads before we start having the bike congestion of China, because then much of the fun will be gone.

Get ready for some friendly competition though, because I have 5-6 months to prepare for dry season, and by then I should have the "fastest road legal electric bicycle in the world". Of course, I have a tremendous advantage in that all I need is pedals, since there is no wattage, speed, or weight limits that apply here. I also have 5 multi-kw hub motors that have a no-load speed of 960rpm at 60V, and 5kwh of konions + 3kwh of LiFePo4, so it's just a matter of getting some higher voltage controllers and building a safe enough vehicle. In other words, as Luke mentioned, get ready for some friendly competition.

You were definitely the first, so congratulations, and thank you for lighting the way for us all and sharing so much along the way.

John
 
John in CR said:
Doc,

Sorry if something got "Lost in Translation". I believe your speed was FASTER than you think. Even a gps reported speed can be significantly off for such short distances. Only trust a GPS speed as an average over at least 500m or 1km. If you had something between a 17 and 18 sec time in something very close to a 1/4 mile which is 402m, then, especially because you had to go easy on the throttle at the start, you must have had a top speed of over 60mph.

That said, if you want to compare speeds to those from a time slip at Bonneville, then you need a much longer course, because Bonneville speeds are an average over a mile and are an average over multiple runs. I know that your bike is far faster that the record claimed at Bonneville for the fastest electric bike, however, I believe it to be an apples and oranges comparison. Their no pedals bike is one thing, but if their bike was legally a bicycle in the US, which means only 750W.

Regardless, I'm on your side and feel your efforts are greatly beneficial to the e-bike cause as a whole. They are the most energy efficient form of transportation known to man. I just hope I get a few more years of lonely roads before we start having the bike congestion of China, because then much of the fun will be gone.

Get ready for some friendly competition though, because I have 5-6 months to prepare for dry season, and by then I should have the "fastest road legal electric bicycle in the world". Of course, I have a tremendous advantage in that all I need is pedals, since there is no wattage, speed, or weight limits that apply here. I also have 5 multi-kw hub motors that have a no-load speed of 960rpm at 60V, and 5kwh of konions + 3kwh of LiFePo4, so it's just a matter of getting some higher voltage controllers and building a safe enough vehicle. In other words, as Luke mentioned, get ready for some friendly competition.

You were definitely the first, so congratulations, and thank you for lighting the way for us all and sharing so much along the way.

John
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I will do many other tunes and test to get a 101+% valid official speed record for sure :wink: I just need alot of preparation for every tests. thst is becoming really nice and i hope that will encourage people to compete with that :wink:

Doc
 
what a wicked idea, dual motor friction drive. maybe just knurl the OD of the motor for better traction.....

just thinking out loud.....

rick
 
Karma You must post a vid of that working setup! :wink:

Doc
 
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