voicecoils
1 MW
SplinterOz said:
Great photos Tony! A heads up to anyone who saw the 4 photos earlier, quite a few more are now up.
jonescg's NEW electric racebike BUILD thread!
- Thread starter jonescg
- Start date
Great photos Tony! A heads up to anyone who saw the 4 photos earlier, quite a few more are now up.
jonescg
100 MW
BrammoBrian said:Congratulations! Excellent build and I'm sure that victory is tasting pretty d@mn sweet right now after all the hard work. 140kW is also very, very impressive.What ended up being the overall capacity of the pack?
Thanks mate,
Pack came in at about 9 kWh. It's 168s3p LiPo, but we're only charging up to 700 V as per the rules.
The bloke running the Dyno was funny - He's looking at the screen ad looking at me, sort of jaw-dropped and rather surprised
Dark Knight
100 W
Brilliant work Chris (and Danny obviously) - congrats. Hopefully the rest of the season is just a continual progression from here...
I still clench cheeks each time I read that 700V...
I still clench cheeks each time I read that 700V...
jonescg
100 MW
One of the other bikes had a lower (but equally lethal) voltage, and there's no way I'd ride that thing in the rain...
RIPPERTON
100 W
jonescg said:The bloke running the Dyno was funny
Ill say, after my run (100hp) I was just about to leave and were standing next to the bike and he flicks the throttle and the bike takes off with me trailing after it, nearly dropped it. He was quite sheepish after that.
Ohbse
10 kW
Chris - congratulations! Awesome machine and a supreme effort that has paid off in some dominating wins
Out of interest, how much current are you pulling to achieve the 140kw figure?
Where to from here as far as power production? I presume you're at some hard limits of the controller, given that you're already at the voltage limit of the regulations (and perhaps sanity)
Out of interest, how much current are you pulling to achieve the 140kw figure?
Where to from here as far as power production? I presume you're at some hard limits of the controller, given that you're already at the voltage limit of the regulations (and perhaps sanity)
jonescg
100 MW
liveforphysics said:
Yeah, there was an element of restraint once we knew we were in front. Now is not the time to be binning it. Pottz was dropping 2 seconds a lap in race three, and probably could have taken the record as he got to know the circuit, but if it came at the cost of tucking the front on tun 4 it wouldn't have been worth it. How on earth he can learn the circuit in a dozen laps has got me beat - but that's why he's riding it and not me :lol:
We weren't pushing the thermal limits either, so the cooling system is working flawlessly. We were pushing it harder, had the higher torque settings, added a few teeth to the front sprocket, and set the torque ramp rate higher, and we still had no heat issues.
Arlo - the 600 Nm is just the launch torque of the motor at 300 A rms. The dyno just tries to infer a torque value from the power and speed readings, so it's not really all that useful.
It's just so good to be working on bike stuff like suspension rather than stressing about the powertrain. As Rip knows, reliability is king.
"He was quite sheepish after that"
Oh man what a clown! That's just what you need...Ohbse - I don't know how much current we're pulling from the battery, but the torque settings (ipso facto motor currents) are at their hard limit. The CA just isn't working for us, so it's more like a glorified voltmeter at the moment. Put it this way, the 200 A fuses haven't popped yet, but they're good for a few seconds of 400 A.
TheBeastie
1 MW
Just watched that Sunday race stream!, was funny to hear the commentator kind of surprised to see the "WA machine" kick so much ass.
I now demand Casey Stoner ride the bike to make it even more exciting
I now demand Casey Stoner ride the bike to make it even more exciting
Rodney64
100 kW
TheBeastie said:Just watched that Sunday race stream!, was funny to hear the commentator kind of surprised to see the "WA machine" kick so much ass.
I now demand Casey Stoner ride the bike to make it even more exciting
You must have known the commentator well Chris. Just some of his comments.
jonescg
100 MW
Yeah Trev and I have known each other for about 10 years. He runs www.mcnews.com.au and does lots of moto-journalism.
dingoEsride
100 kW
You must feel pretty chuffed right now Chris, a great outcome for all your efforts, Bravo Sir, thanks Rod for the link to the race, didn't find it till Beastie commented and yeah feelin prouder to be west aussie
SplinterOz
1 kW
Note more photos uploaded... pits shots and behind the scenes goodness. https://www.flickr.com/photos/splinter/sets/72157645434972333/
RIPPERTON
100 W
Ripperton front camera Saturday Afternoon.
https://www.youtube.com/watch?v=VPqn2M3d4sc
Ripperton Rear Camera.
https://www.youtube.com/watch?v=Y6Cbg1ALnho
Voltron Front Camera. Listen to Pottz losing his mind with demented laughter at 10 seconds. That's what 200hp does to you.
https://www.youtube.com/watch?v=8oXKrT1Zt3A
https://www.youtube.com/watch?v=VPqn2M3d4sc
Ripperton Rear Camera.
https://www.youtube.com/watch?v=Y6Cbg1ALnho
Voltron Front Camera. Listen to Pottz losing his mind with demented laughter at 10 seconds. That's what 200hp does to you.
https://www.youtube.com/watch?v=8oXKrT1Zt3A
DarylMc
100 mW
Hi Ripperton
Thanks for the videos
The speed differential was huge on the straight and I'm sure everyone will get a kick out of watching that.
I had a great weekend to get out there, see the bikes and meet everyone.
All the best for the next race.
Thanks for the videos
The speed differential was huge on the straight and I'm sure everyone will get a kick out of watching that.
I had a great weekend to get out there, see the bikes and meet everyone.
All the best for the next race.
Rodney64
100 kW
Queensland is meant to be warm
https://m.facebook.com/story.php?story_fbid=10152780738052345&id=566237344
https://m.facebook.com/story.php?story_fbid=10152780738052345&id=566237344
jonescg
100 MW
Rodney64 said:
It wasn't that weekend...
I'm pretty bad with getting photos and video at these sorts of things, but I did manage to get this one - end of race two, Saturday.
[youtube]XqNsDjXEr9Y[/youtube]
RIPPERTON
100 W
Voltron has the cool space ship / turbine sound.
Rodney64
100 kW
No that sound is patiented by Harley Davidson. Thinking about flying over to Sydney for the last race anyone else keen.RIPPERTON said:
voicecoils
1 MW
Rodney64 said:
:lol: special electric Harley sound ... Who are they kidding?
I'm hoping to make it to the Wakefield Park and Sydney Motorsport rounds to spectate. Would be nice to see other E-S members at the track. The past races I've been to have a very friendly atmosphere in the pits and a good chance to see the bikes up close.
jonescg
100 MW
Some folks might have already seen this article but I might post the link up here anyway.
http://www.mcnews.com.au/2014-electric-bikes-hell-yes/#comment-43275
It's been quite well received around the interwebs.
An ES cohort at Eastern Creek would be awesome! Start making plans guys!
http://www.mcnews.com.au/2014-electric-bikes-hell-yes/#comment-43275
It's been quite well received around the interwebs.
An ES cohort at Eastern Creek would be awesome! Start making plans guys!
DarylMc
100 mW
Hi Chris
It was a pleasure to meet you and the crew at QLD raceway.
Hope the bike made it out of here in one piece and Warren did not bust it out of the crate for donuts
I'm getting old and haven't been to watch races for a while.
Goodness it was a revelation to see the gassers stinking it up and making lots of noise in the garages while your bike was sitting silently on the charger waiting for the race.
The series is an excellent place to get up close with the riders and bikes.
Well at least it was here and I'm sure it will be the same everywhere else.
I strongly recommend anyone who is even a little bit interested in electric bikes make the effort to get out to see them.
It was a pleasure to meet you and the crew at QLD raceway.
Hope the bike made it out of here in one piece and Warren did not bust it out of the crate for donuts
I'm getting old and haven't been to watch races for a while.
Goodness it was a revelation to see the gassers stinking it up and making lots of noise in the garages while your bike was sitting silently on the charger waiting for the race.
The series is an excellent place to get up close with the riders and bikes.
Well at least it was here and I'm sure it will be the same everywhere else.
I strongly recommend anyone who is even a little bit interested in electric bikes make the effort to get out to see them.
jonescg
100 MW
Getting exciting!!!
We had several power issues at QR, so often we found ourselves scouting out the backs of sheds for extra power points. One thing we did notice was the abundance of 32 A 3-phase outlets like this one:
We have used 3-phase to 15 A single phase adapters before, but there was a stack of unused power behind the socket. So I created my Superbike Supercharger!
It takes a phase to neutral line for each 15 A socket, and each socket has it's own 20 amp MCB and RCD. So if I ever have the funds to buy a pair of 4 kW chargers, I can still power them from any 5 pin, 32 amp plug I find. The 8 metres of flex means I can leave the box in the pits, out of the weather.
Bike is looking good, and the front end has been re-valved and re-sprung. Should be a great weekend of racing!
We had several power issues at QR, so often we found ourselves scouting out the backs of sheds for extra power points. One thing we did notice was the abundance of 32 A 3-phase outlets like this one:
We have used 3-phase to 15 A single phase adapters before, but there was a stack of unused power behind the socket. So I created my Superbike Supercharger!
It takes a phase to neutral line for each 15 A socket, and each socket has it's own 20 amp MCB and RCD. So if I ever have the funds to buy a pair of 4 kW chargers, I can still power them from any 5 pin, 32 amp plug I find. The 8 metres of flex means I can leave the box in the pits, out of the weather.
Bike is looking good, and the front end has been re-valved and re-sprung. Should be a great weekend of racing!
DarylMc
100 mW
Hi Chris
I was wondering regarding the handling of the bike.
Have put much thought into the rotating mass of the rotor and gyroscopic forces or whatever the proper name is.
I think changing directions would create significant forces due to the spinning motor.
Do you know how it compares to say a Superbike engine.
I imagine whatever forces it generates are a lot further towards the rear also.
Would different gearing make an appreciable difference etc.
Nice job on the charging cord
Best wishes to everyone for the next race.
I was wondering regarding the handling of the bike.
Have put much thought into the rotating mass of the rotor and gyroscopic forces or whatever the proper name is.
I think changing directions would create significant forces due to the spinning motor.
Do you know how it compares to say a Superbike engine.
I imagine whatever forces it generates are a lot further towards the rear also.
Would different gearing make an appreciable difference etc.
Nice job on the charging cord
Best wishes to everyone for the next race.
jonescg
100 MW
DarylMc said:Hi Chris
I was wondering regarding the handling of the bike.
Have put much thought into the rotating mass of the rotor and gyroscopic forces or whatever the proper name is.
I think changing directions would create significant forces due to the spinning motor.
Do you know how it compares to say a Superbike engine.
I imagine whatever forces it generates are a lot further towards the rear also.
Would different gearing make an appreciable difference etc.
Nice job on the charging cord
Best wishes to everyone for the next race.
The rotating mass component is very small. In the grand scheme of things, half a degree of steering rake will make more of a difference than the gyroscopic forces. If anything, having the rotor spinning in the same direction as the wheels should make it easier to tip in.
Oh, and I got a job at the Scitech Discovery centre! I'm now a part-time science presenter! Yes, I turned down the latest opportunity to go working offshore and earning recycled petro-dollars for something I believe in. It's tough, but I feel much better about it
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