New controller for 23s battery

[Saper]

Hello, currently I have a bike built on vector frame:
- 23s14p samsung 30q battery
- QS V3 motor
- Adaptto Max-e controller + adaptto bms and charging coil

I've been having many problems with the controller, had to send it for repair few times even though I'm charging the battery only to 90v. I spent way to much on repair now so I'm thinking about just getting a different controller that can handle my battery on full charge.

So I've been looking at few controllers and Sabvoton 96120 seems to be the best option
https://www.alibaba.com/product-detail/Sabvoton-SVMC-96120-brushless-controller-Winter_62089011162.html?spm=a2700.galleryofferlist.0.0.3d4453d1eMpKrF

I've never used any other controller than Adaptto which was fairly simple to put together.

Can you recommend any other parts I need to make this work?
- BMS
- Display (cycle analyst or something else?)
- Charger

 

[markz]

https://endless-sphere.com/forums/viewtopic.php?f=3&t=102344&p=1496752&hilit=hard+Sabvoton#p1496752

Notoriously hard to (re-) program correctly.

https://endless-sphere.com/forums/viewtopic.php?f=3&t=34929&p=1021989&hilit=tough+Sabvoton#p1021980

The Sabvoton Sinewave Controller is very programmable. Much more so than the Infineon. There is an app, but the interconnect is USB/serial. It is always "live" so it can be read out and programmed while riding, if you had that set up.

I would say the only downside to the Sabvoton is the size and weight.

The Sabvoton seems to be very tough

On Sevcon's
https://endless-sphere.com/forums/viewtopic.php?f=2&t=101939&p=1490786&hilit=hard+Sabvoton#p1491183

If you think the BAC is hard to setup...wait till you see Sevcon...and you will need their software and programming hardware, which may cost more than the controlelr depending on what you need to do.

Nucular Controller are good I read.

So I've been looking at few controllers and Sabvoton 96120 seems to be the best option
https://www.alibaba.com/product-detail/Sabvoton-SVMC-96120-brushless-controller-Winter_62089011162.html?spm=a2700.galleryofferlist.0.0.3d4453d1eMpKrF

 

[MadRhino]

You know KISS?
‘Keep it simple stupid’

Buy at least one cheap infineon based controller with programming cable. Not a big set of functions, but cheap, simple, reliable, and easy to mod for high power.

Then 23s 14p is weird, and makes a lot of connections. Do 20 or 24s, modular. Next bike, build with big prismatic cells. Keep assembly simple and practical.

Complicated things with lots of components, are more likely to fail, and consuming to fix.

 

[Saper]

Nucular controllers have a maximum voltage of 90V on their website and 4-5 months wait after pre order so SVMC96120 still looks like the best way to go.

Then 23s 14p is weird, and makes a lot of connections. Do 20 or 24s, modular. Next bike, build with big prismatic cells. Keep assembly simple and practical.

I really would like to avoid any big changes, my goal is fixing the bike with lowest cost possible
Unless I could modify the battery somehow? I'm gonna ask in few places if they could rebuild my battery into maybe 20s16p, that would make everything easier.

I found a seller including a display with their sabvoton https://www.alibaba.com/product-det...8293689.scGlobalHomeHeader.380.35a567aflRfdh1 but when I asked a different seller they said SVMC96120 cannot be matched with SW900 display :?
Does anyone here have this controller? What display are you using?

 

[john61ct]

QS V3 means what, the 273 40H?

rated at 4000W but they say can do much more

stock controller when I enquired is SVMC96120 get it unlocked

 

[markz]

The 273 motor has various wattage rating (3kw-8kw and more probably!)
seeing their website.



QS205 3000W Electric Bicycle Spoke Hub Motor V3 Type (50H) drop-out 150mm
WOW I Just notice this --> QS273 13inch 12000W In-Wheel Hub Motor 70H V4 Type

I dont know what the different versions mean, I know with the MXUS lineup, their V3 meant a double hall setup/spare hall setup. Their V1 meant that it was a steel stamp plate armature, v2 meant aluminum armature which had better heat sinking capabilities to shed more heat. The 3kw was heavy and beefy but could use up a lot of power.

QSMOTOR thread is https://endless-sphere.com/forums/viewtopic.php?f=31&t=65972&hilit=qsmotor

 

[john61ct]

273 v3
40H refers to magnet (height)

https://endless-sphere.com/forums/viewtopic.php?p=1497772#p1497772

http://www.cnqsmotor.com/en/article_list/QS%20Motor%203000W-8000W%20273%20Spoke%20Hub%20Motor/117.html

http://www.cnqsmotor.com/en/article_list/E-Bike%20Hub%20Motor/90.html

My scratch notes
8840W continuous, 11245W peak @ 72V 200A, 
which might also call it 10kW

23~24kg, maximum 800~1500RPM, 200-300N.m.
max 1405RPM in 72V, 200N.m

For 8kW V3 motor, we suggest peak 150-200A battery current for general usage (72V). It's most stable configuration & longest life time

strongly suggest to install Thermic Probe (KTY 83/122)

 

[MadRhino]

Building an ebike with a 53 lbs hub is making a harsh ride. 33 lbs hub was a big challenge to tune a proper suspension. Took me 2 years riding various config, lot of parts and mods, and I am not a newb in this domain. If I ever decide to build heavier, I would definitely go mid drive and motorcycle drivetrain.