Doctorbass 2WD ADAPTTO / NYX / MXUS 32kW 105 pounds

[macribs]

hi Doc, don't know if you named your bike yet or not but if not may I suggest Double Treble

Hmm more like double trouble

 

[amberwolf]

hi Doc, don't know if you named your bike yet or not but if not may I suggest Double Treble

As long as he doesn't end up riding it off a clef....

 

[ridethelightning]

hi Doc, don't know if you named your bike yet or not but if not may I suggest Double Treble

As long as he doesn't end up riding it off a clef....

oh! stop it already

 

[macribs]

He actually put in a pic of a music symbol so 'i am sure he was going for some kind of word play, although I didn't catch that pun I figured the rewritten one double trouble would suit the bike well.


Double treble and

Treble as high pitched tones, the upper en of a scale. Still don't get the pun, so pls pitch in even if we are way off topic.

 

[jakequicksilver9]

Idk what a treble does I was just going for a music pun because he is doctor bass

 

[jakequicksilver9]

Lol just looked it up
"tones of high frequency or range, the counterpart of bass"

 

[Stielz]

Just read back through the discussion about the new 14kW Max-e. If it is in fact just the gate driver boards that have been changed I wonder if Adaptto would sell us those separately to allow us to upgrade our old version Adaptto..

 

[madin88]

Just read back through the discussion about the new 14kW Max-e. If it is in fact just the gate driver boards that have been changed I wonder if Adaptto would sell us those separately to allow us to upgrade our old version Adaptto..

the entire power stage is different - not only the driver borards..

 

[cwah]

what wheel size is it?

Why not using 20" for better efficiency and acceleration?

 

[John in CR]

Why not using 20" for better efficiency and acceleration?

Small guy (about 75kg if I recall), light bike, 2 motors, no slow steep off-road mountain climbing, all combine to tell me his motors are geared fine with no need for a smaller wheel...and that's coming from the biggest proponent of small wheels for DD hubbies on the forum.

 

[Doctorbass]

In fact i have calculated the motor winding and wheel size to give me the torque curve that give the fastest speed and acceleration for the 1/8 mile. but as well if i would go 20" wheel my top speed would reduce but the 0-60ft would be better. In the best conditios i could get about the same 0-60ft than my modified Zero 2012 SR and get 1.6s, just lik ethe P90D does, it's all a matter of traction and weight disstribution.

This actual bike is 21kW and not 32kW yet.

On spring 2016 i will test various front tire pressure to find the optimum traction, replace the 2kWh battery by the 13 pounds of military Lipo, unlock the rear Max-E to 16-18kW.

Doc

 

[jansevr]

Doc, have you considered trying Justins statorade for increased efficiency of the hubs? Those little mxus can't be happy at 10-15kw. Even with air cooling efficiency is still low maybe 60% at 10kw. It is possible that you can increase the efficiency to 70 or even 80 at those power levels with the ferrofluid.

Awesome bike can't wait to see more progress and the unlocking of the max e!

 

[Doctorbass]

Doc, have you considered trying Justins statorade for increased efficiency of the hubs? Those little mxus can't be happy at 10-15kw. Even with air cooling efficiency is still low maybe 60% at 10kw. It is possible that you can increase the efficiency to 70 or even 80 at those power levels with the ferrofluid.

Awesome bike can't wait to see more progress and the unlocking of the max e!

The Statorade that Justin offer is an awsome solution, but for the purpose of the drag bike, the thermal mass of the motor is enough to sustain 16kW burst. But as well if i would make the Pike Peak or some race i would need more efficient cooling system.

Doc

 

[macribs]

You got mail Doc

 

[Doctorbass]

I jus repost the pictures of the ultra high power density i'll use for the 32kW NYX.

These are 100C and have been tested at 200C by a former member of the NAtional Electric Drag Racing Association ( NEDRA).

These are 100C rated ( true 100C ) LiPo cells of 4.5Ah coming from unclassified military drone project. John Metric, the legend from electric drag racing community is selling these under the name of LONESTAR cells. The previous John was using was the polyquest 45/90C he tested and fund the lonestar to be way better. I posted a graph of the polyquest

They come with 8 gauge wire and 8mm bullet connector. I have used gauge 2 and SB120 connector on the output. Thsi pack is capable of burst 10sec 70kW and weight only 13 pounds total. I configured it in 20 to 22s and 2p

This is the final result of the battery i assembled for the project:

 

[steveo]

doc will you be posting any of your own discharge tests?

im curious to compare one of these 6s1p 4.5ah packs vs turnigy 6s1p 5ah... id like to see temps from start to finish as each ah is discharged for the cells.. maybe 50amp..75amp..100amp.. costant load would be cool to see..

how do you make these nice aluminum cases?.. im looking for a soloution to place my battery inside my new ebike..

i will look to do... 6p20s configuration with 20c turnigy lipos its will need to be 2 bricks wide by 12 bricks long per say

i need around 300amp peak... to feed that hubmonster hubie

 

[Doctorbass]

doc will you be posting any of your own discharge tests?

im curious to compare one of these 6s1p 4.5ah packs vs turnigy 6s1p 5ah... id like to see temps from start to finish as each ah is discharged for the cells.. maybe 50amp..75amp..100amp.. costant load would be cool to see..

how do you make these nice aluminum cases?.. im looking for a soloution to place my battery inside my new ebike..

i will look to do... 6p20s configuration with 20c turnigy lipos its will need to be 2 bricks wide by 12 bricks long per say

i need around 300amp peak... to feed that hubmonster hubie

I have built it by hand with a metal sheet plier at work. Then cutted everything with a bandsaw, then i filed all sharp edges. I have then used cute flat head SS bolt that are just the right thickness.

I will test these soon, i'm just to busy with various client project for EV

Here is the aluminum case before anodizing:

 

[ridethelightning]

nice work doc!
I can see why you have no time for making torque arms :lol:

 

[kfong]

Haven't been on the forum for a while. Good to see you are still pushing the boundries of ebikes Doc.

 

[Doctorbass]

Haven't been on the forum for a while. Good to see you are still pushing the boundries of ebikes Doc.

 

[ecross]

thank you for making this very informative video. this helps a lot to understand how the Adaptto controllers work and why everyone has different maximum batt amp settings (and also max phase amps i believe).
On one of my Max-E i only can set 123A batt and 335A phase, while on another i have 138 and 370 or something like this..

@madin88: the video from DrBass is really nice. After this video and some more interesting infos from Allex and Andew/Adaptto, I change my mind and sold the "too" expensive controller. Much too many bugs, software and hardware is not worth +1000Euro ( have buy a early controller from Allex, the first and last buy from Allex, many thanks for your helping hand Allex!) My way was in the past: Lyen 9Fet, Lyen 12Fet, Lyen 12Fet-4115, Lyen 18Fet, Lyen 18Fet modding, max-e, Lyen 18Fet extrem-modding, more is waiting....

@Doctorbass: So some experience is into my lab, but looking now for my modding 4503 WC, for a better controller! Need helping hand, is the Sevcon Gen4 a good controller?
My favourite batteries are Sony VTC5 have some 12S8P, so I can connect 24S16P or 24S32P
Batteries are not my problem, Motor are also not my problem, the water-cooled 4503 is great

 

[madin88]

@madin88: the video from DrBass is really nice. After this video and some more interesting infos from Allex and Andew/Adaptto, I change my mind and sold the "too" expensive controller. Much too many bugs, software and hardware is not worth +1000Euro ( have buy a early controller from Allex, the first and last buy from Allex, many thanks for your helping hand Allex!) My way was in the past: Lyen 9Fet, Lyen 12Fet, Lyen 12Fet-4115, Lyen 18Fet, Lyen 18Fet modding, max-e, Lyen 18Fet extrem-modding, more is waiting....

Yes there had been bugs, but most of them are fixed, or at least i don't have any i get annoyed of since latest Firmware.
What i don't like are a few things with the power monitor, however, if you do a "reset and full battery" everytime you charge to full, the values should be accurate.
Another thing is that autodetect only is good for getting the right hall and phase wire combination in some cases, so manual tuning is what you need to do.
this is a "bug" you can forget about if you have manually tuned the motor.

So normally, once everything is setup correct, you should have no problems with Adaptto.
with my controllers everything works how it should and i can give my bikes to friends for a ride since it's "idiot proof" (with password protected menu of course!)

ecross, i think you gave up to early. It takes a lot of time reading the manual, understanding the settings and getting familiar with them.
if you would have had the pleasure of riding with an Adaptto, i think you don't would use infineon again - at least on your bike with MXUS3k^^

 

[Ohbse]

What's happening with this bike?

Summer's here! (well, for you it is) Have you been for a ride?

 

[Doctorbass]

What's happening with this bike?

Summer's here! (well, for you it is) Have you been for a ride?

I m finishing my Zero mod first, then the drag bike and then my 2nd NYX for friends.
I ll keep you updated no worrie 8)

Doc

 

[cwah]

Would hobbyking new battery chemistry graphene be a good bang for the buck for your bike?
http://www.hobbyking.co.uk/hobbyking/store/__91204__Turnigy_Graphene_6000mAh_4S_65C_Lipo_Pack_w_XT90.html
True 65C and 600+ cycle and fast charge