GT E-drive from Russia

[r3volved]

Great video!
Bike looks nice and strong with those wheels

 

[madin88]

is this an 17 or 18" moto rim?
what tires you use?

nice vids^^ it looks fast and simple but it takes much more time lol :lol:

 

[ridethelightning]

are you able to keep the same configuration to put inside the new frame or will you use pelican again?

yep, at this moment:



The new battery (440pks, 22s20p, 95v 60ah ~4840wh) during welding. Today ready only 1\5 of this - 5s20p

that is one serious mother of a battery!

keen to see how it performs....

 

[ivanovlev]

is this an 17 or 18" moto rim?
what tires you use?

nice vids^^ it looks fast and simple but it takes much more time lol :lol:

18x1.40 + Michelin Gazelle M62 18 x 2.75

i'm really recreate this bike for a week (by evenings after work)

...The new battery (440pks, 22s20p, 95v 60ah ~4840wh)...

that is one serious mother of a battery! .

No, THAT's mother of all ebikes battery: http://electrotransport.ru/ussr/index.php?topic=18196.990 6.6kwh, 80v 90ah (20s31p), 32kg (620pks) of LG D1:

 

[ivanovlev]

Day four:

[youtube]u0TMHD0CZTY[/youtube]

 

[ivanovlev]

Day five
[youtube]kWypXeVqDSA[/youtube]

 

[ivanovlev]

Day Six

[youtube]UrKvoZ-oyxQ[/youtube]

 

[Allex]

LOL "Zhuravli" vodka, I though you would have another Coffee brake there!
Nice video!

 

[ivanovlev]

[youtube]U7lN5TG_y3M[/youtube]

 

[Allex]

Great compilation, keep up the good work.

 

[Brake]

Great vids. Thanks for the inspiration.

 

[ivanovlev]

Battery just ready:



20s20p, 73v60ah, 4400wh

 

[newman64]

I want to build packs like you
Can you tell us what that soldering machine is that you use to solder the batteries together and where to get it from?
And what are those metal conductors you use to connect the cells?

thanks, Newman

 

[ivanovlev]

tape from nickel with 0.3 mm thickness. Machine from taobao. Up "to 1 mm" as said in docs. DN-16. For normal operation needs supply >=220v 32a

 

[ivanovlev]

First lite trip on single charge to Alex with AndreyM, Nick_DR and Neez:






other photos here: http://fotki.yandex.ru/users/inz-voiska/album/217312/

 

[Rix]

Subscribed, because this thread is Uber Cool!

 

[madin88]

do some riding in a group is great. thanks for sharing pics

only 18Wh/km is good, or was it because of drafting trucks?

About half year ago andreym sent me good fitting settings for Cromotor (V2, 9.3kV).
Did you guys find out even better settings the past time or during your rides?
I ask because i noticed with "OVS 0" the Cromotor gets much hotter than with OVS 2 or 3, so i guess settings are not optimal because normally it should be the opposite way (the higher the OVS or flux weakening, the hotter it should get).

 

[Rix]

Ivan, going through your thread, found this swing arm pic back towards the beginning, whats going on here? That's my swingarm design. :wink: Just joking :lol: , but for real, this is a drawing of the perfect ebike hub motor swingarm I came up with over two years ago. Its close to the one in the pics on this thread though. Kind of validates that I at least have a clue. Can a guy buy this swing arm with Paypal?

Rick

 

[Allex]

Rick, look here:
http://endless-sphere.com/forums/viewtopic.php?f=31&t=55782

You could buy the kit from them. It is the same frame as Ivans. I believe they just made an update(reinforced/design change) of their swing arm.

 

[ivanovlev]

only 18Wh/km is good, or was it because of drafting trucks?

This is clear data without tracks (... may be 4% of all way is trucks)

Rix - contact with developers by link before

 

[Allex]

do some riding in a group is great. thanks for sharing pics

only 18Wh/km is good, or was it because of drafting trucks?

About half year ago andreym sent me good fitting settings for Cromotor (V2, 9.3kV).
Did you guys find out even better settings the past time or during your rides?
I ask because i noticed with "OVS 0" the Cromotor gets much hotter than with OVS 2 or 3, so i guess settings are not optimal because normally it should be the opposite way (the higher the OVS or flux weakening, the hotter it should get).

Madin, you should tune your values manually.
Take "Angle Corr" and "Ind Timing"

First Angles, lift up the wheel accelerate to 10-15km/h and holding this speed, adjust your angle so you have a smooth rotation. If the angle is wrong you will hear it and also the wheel will turn more slowly. So keep adjusting it until you have the most silent spin at this speed.
You can also test it on a very long stretch. Find a flat road and drive 15km/h with one setting, take note of the motor temperature and then change the value. If the temp. will get lower, then the new value is more correct, keep going until you get the lowest possible temp.

Same goes with Ind Timing. But this time you need to have a constant speed of ~35-50km/h. Take note of the motor temperature and then change the value. If the temp. will get lower, then the new value is more correct, keep going until you get the lowest possible temp.

Then you have PWR timing. Adjust this value so you have maximum torque when you go WOT from 50km/h.Works best at about +1,5-2,5 with Cro and my Crystalyte 5403

Note: Dial OVS down to 0 when you do all of the above .

 

[madin88]

Allex, thanks for this good explaination.
If i have the time i will do some tests by my own, but it would be fine if someone would share better cromotor settings.
As i mentioned the motor stays cooler if i set OVS to 2 instead of 0 and this is strange.
I never touched the "indTiming". maybe this will do the change. as far as i know this setting is set automatically during autodetect. maybe this was improved in the newest firmware, i dont know have to try it out..

 

[Allex]

New firmware have better autodetect, but I would not rely on it 100%
Try to upgrade and run Autodetect, see if you get deff. values.
Also play with the figures manually. For instance, When I ride at 50km/h and change the Angle corr on the fly I can feel the difference.

 

[ivanovlev]

Allex, big thanks for a nice weekend!

[youtube]IexI4chx9us[/youtube]

 

[Rix]

Great video. Thats what ebiking is all about, fun with friends on two wheels. Thanks for posting.

Rick