MXUS 3000 Hub Motor - V1 V2 V3

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VelluK   100 mW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by VelluK » May 19 2018 3:29am

Update:
My problem were solved: viewtopic.php?f=2&t=94291

Original post:
My MXUS V3 hub motor get really hot when driving by bike. I made 30 min test drive and controller cut the power to the motor couple of times. Motor temperature limit was set to 130 C degrees (266 F). Voltage is about 66 V and max current is maybe 50 A. That's only guess because I don't have any wattmeter to measure that.

Here is the motor wiring:

Hall sensors
Motor blue - controller green
Motor green - controller blue
Motor yellow - controller yellow

Phase wire
Motor blue - controller green
Motor green - controller yellow
Motor yellow - controller blue

I have already put 5 ml ferrofluid to the motor. Motor is 5Tx12 / 7,2 kV model and I have 21" moto wheel at back.

Motor calculation shows that consumption should be about 24 Wh/km when my bike's real consumption is about 45 Wh/km. Battery capacity is 13,2 Ah and I can drive about 20 km when I should be able to drive like 40 km. More information here: viewtopic.php?f=2&t=94291&p=1381334#p1380877

So there should be something wrong on my motor. But what? Do you have any ideas what to do next? Is there any magic tricks what I can do for the motor to get the temperature down?

Is it possible that there is several possible wirings which get the motor rotationg but some wirings get motor running hotter than some other wirings?

Thanks!
Stealth ebike, hub motor MXUS V3 3K Turbo, controller Kelly KLS7230S, batteries Sony VTC5 20s6p (84V 15.6Ah), rear wheel moto 21"

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 03 2018 10:16pm

Anyone use a Kelly 7230 controller on it? Does it work well?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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VelluK   100 mW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by VelluK » Jun 03 2018 11:44pm

I use and it work well now when I have found the correct wiring.
Stealth ebike, hub motor MXUS V3 3K Turbo, controller Kelly KLS7230S, batteries Sony VTC5 20s6p (84V 15.6Ah), rear wheel moto 21"

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 04 2018 6:45am

VelluK wrote:
Jun 03 2018 11:44pm
I use and it work well now when I have found the correct wiring.
Thanks does it make a high pitch noise when running? And was the auto tune working?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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VelluK   100 mW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by VelluK » Jun 04 2018 6:53am

cwah wrote:
Jun 04 2018 6:45am
Thanks does it make a high pitch noise when running? And was the auto tune working?
Yes and yes :)
Stealth ebike, hub motor MXUS V3 3K Turbo, controller Kelly KLS7230S, batteries Sony VTC5 20s6p (84V 15.6Ah), rear wheel moto 21"

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 04 2018 10:25am

VelluK wrote:
Jun 04 2018 6:53am
cwah wrote:
Jun 04 2018 6:45am
Thanks does it make a high pitch noise when running? And was the auto tune working?
Yes and yes :)
With my leaf motor it's absolutely silent. I really like it.

Can that be completely silent, or is it dependent on the motor?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

redline2097   100 W

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by redline2097 » Jun 05 2018 1:48am

Mxus paired with Foc or Sinewave controller should be almost dead quiet.

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 05 2018 4:55am

redline2097 wrote:
Jun 05 2018 1:48am
Mxus paired with Foc or Sinewave controller should be almost dead quiet.

Which controller is the most silent? I can't stand the high pitch noise from the phaserunner.
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

redline2097   100 W

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by redline2097 » Jun 05 2018 7:07am

Infineon sinewave and Sabvoton 72150 has been quiet on me. At 50kph chain noise is 10x the motor noise.

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 05 2018 7:16am

redline2097 wrote:
Jun 05 2018 7:07am
Infineon sinewave and Sabvoton 72150 has been quiet on me. At 50kph chain noise is 10x the motor noise.
Which one you recommend for the quietest and most reliable set up? And link to the seller please

Thanks
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

redline2097   100 W

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by redline2097 » Jun 07 2018 1:37am

cwah wrote:
Jun 05 2018 7:16am
redline2097 wrote:
Jun 05 2018 7:07am
Infineon sinewave and Sabvoton 72150 has been quiet on me. At 50kph chain noise is 10x the motor noise.
Which one you recommend for the quietest and most reliable set up? And link to the seller please

Thanks
http://www.cnqsmotor.com/en/article_rea ... r/537.html

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 07 2018 3:18pm

redline2097 wrote:
Jun 07 2018 1:37am
cwah wrote:
Jun 05 2018 7:16am
redline2097 wrote:
Jun 05 2018 7:07am
Infineon sinewave and Sabvoton 72150 has been quiet on me. At 50kph chain noise is 10x the motor noise.
Which one you recommend for the quietest and most reliable set up? And link to the seller please

Thanks
http://www.cnqsmotor.com/en/article_rea ... r/537.html
I already have a Kelly controller kls7230s. Is the sabvoton much better?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

redline2097   100 W

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by redline2097 » Jun 08 2018 12:57am

cwah wrote:
Jun 07 2018 3:18pm
redline2097 wrote:
Jun 07 2018 1:37am
cwah wrote:
Jun 05 2018 7:16am
redline2097 wrote:
Jun 05 2018 7:07am
Infineon sinewave and Sabvoton 72150 has been quiet on me. At 50kph chain noise is 10x the motor noise.
Which one you recommend for the quietest and most reliable set up? And link to the seller please

Thanks
http://www.cnqsmotor.com/en/article_rea ... r/537.html
I already have a Kelly controller kls7230s. Is the sabvoton much better?
In other league. Kelly is worth about $50 (unit price when ordering 15 pieces). My 5 year old son has KLS7230s on this modified Oset and it gets warm on his usage. I could not imagine using it myself.

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 08 2018 8:21am

Which sabvoton model do you recommend for this motor and 15s (60v) battery? My battery can pull up to 10kw peak.

Is it easy to set up? Is there something showing what combination works best?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

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BionicBlitz   100 µW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by BionicBlitz » Jun 13 2018 9:48am

People are saying the 4t can handle more power/ is more efficient than the 3t?
Could someone explain a little please. Looking to buy one and I want atleast 50mph/80kmh. But if the 4t is really that much more efficient I'll get one and overvolt. Thank you
Not really sure what this does :)

markz   100 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by markz » Jun 18 2018 4:32pm

What is the size of the bearings for the V2?

Thanks

edit -


viewtopic.php?f=2&t=92101&p=1345207&hil ... g#p1345207
Side covers been modified.
Linukas wrote:
Oct 09 2014 3:37am
axles are made with 2 side grooves, in one goes hall wires, in other goes pipes and hall/temp cable, axle diameter in that side is 30mm, so side cover is modified to fit bigger bearing ID-30, OD-42. axles are pressed to standard stamped steel stator.
I can offer just completely modified motors for 420euro. 4x15 and 3x19 winding. lead time is 1-2 weeks.

This one
6004 Bearing 20mm id on wire side
http://www.pedelecs.co.uk/forum/threads ... tor.23493/


https://kinayems.com/Archive/Products/D ... S_3K-Turbo
The 3K-Turbo, upgrades the axle from 17mm to 20mm diameter on the wire side with a larger bearing to squeeze in 5.26mm² phase wires

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teslanv   100 MW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by teslanv » Jun 19 2018 7:44am

BionicBlitz wrote:
Jun 13 2018 9:48am
People are saying the 4t can handle more power/ is more efficient than the 3t?
Could someone explain a little please. Looking to buy one and I want atleast 50mph/80kmh. But if the 4t is really that much more efficient I'll get one and overvolt. Thank you
The 4T has one more strand of .5mm copper magnet wire compared to the 3T winding (16x4T vs. 21x3T)

The total power handling is thus a theoretical 1/64th more.

I'd go with a 3T personally, and keep the voltage lower. But I also like a more modest acceleration, so feeding the 3T more amps isn't a priority for me.

Just my $0.02.
DD Hubs, Batteries, Controllers & Custom Ebikes.
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West Coast Electric Cycles
Bellevue, WA
USA

markz   100 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by markz » Jun 19 2018 2:03pm

I'd have to agree with Teslaenvy, I have the 4T but in the V2 flavor on 48V and I like it.
You can feed it more amps then a higher turn count motor.
You can decrease the wheel diameter = less speed, but more torque!
I am not into speed as much as others here on the "Sphere" buts these motors are friggin' fun a.f.
teslanv wrote:
Jun 19 2018 7:44am
BionicBlitz wrote:
Jun 13 2018 9:48am
People are saying the 4t can handle more power/ is more efficient than the 3t?
Could someone explain a little please. Looking to buy one and I want atleast 50mph/80kmh. But if the 4t is really that much more efficient I'll get one and overvolt. Thank you
The 4T has one more strand of .5mm copper magnet wire compared to the 3T winding (16x4T vs. 21x3T)

The total power handling is thus a theoretical 1/64th more.

I'd go with a 3T personally, and keep the voltage lower. But I also like a more modest acceleration, so feeding the 3T more amps isn't a priority for me.

Just my $0.02.

LuckySchwinning   10 µW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by LuckySchwinning » Jun 20 2018 9:50am

Hey everyone.

I have a quick question that I hope someone can help me with.

I just built a system that uses the mxus v2 4t motor wired to a Sabvoton 100A controller. I hooked up the Luna Cycles 72v 20s3P 10ah battery pack for testing. Everything is running on the stand very well. I have the current limit set to 30a continous and 40a max for that battery pack. I am running a 17" rear moto wheel.

Should I be able to ride this thing w/ my big ass on it w/o exeecding the 40a limit?

I was thinking about buying another battery to run in parallel so I could increase the current limits to 60a and 80a. Or should I just buy a different battery?

Thanks

litespeed   100 kW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by litespeed » Jun 20 2018 10:24pm

A different battery would be ideal with more P and with higher current batteries.

Set up your batteries for 50% of what they can actually draw for longevity.

Tom
I'm married so you know I'm no stranger to pain!

LuckySchwinning   10 µW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by LuckySchwinning » Jun 21 2018 8:13am

Tom,

Thanks for the advice. Are there any good places to buy batteries right now? High voltage high current batteries are like finding unicorns.

Cheers

cwah   10 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by cwah » Jun 21 2018 8:29am

What's the dropout width of the mxus v3? Can it for 135mm dropout?
Help me find my stolen electric brompton: http://bit.ly/1a0vbBC and Bosch Sinus B3 http://bit.ly/1eV0WQz

litespeed   100 kW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by litespeed » Jun 21 2018 5:54pm

LuckySchwinning wrote:
Jun 21 2018 8:13am
Tom,

Thanks for the advice. Are there any good places to buy batteries right now? High voltage high current batteries are like finding unicorns.

Cheers
https://ru.nkon.nl/rechargeable/18650-size.html

Only place to buy in my opinion. I bought 305 30Q cells and took about a month to get. NO ONE offers a better deal right now, NO ONE!

Tom
I'm married so you know I'm no stranger to pain!

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by n2mb » Jun 22 2018 9:39am

Is this motor still the best 3000W hub motor available?

How does it compare to the Crystalyte Crown TC3080?

Does anyone know where I can buy one built with a wheel in the US?

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Rix   100 GW

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Re: MXUS 3000 Hub Motor - V1 V2 V3

Post by Rix » Jun 22 2018 9:50am

n2mb wrote:
Jun 22 2018 9:39am
Is this motor still the best 3000W hub motor available?

How does it compare to the Crystalyte Crown TC3080?

Does anyone know where I can buy one built with a wheel in the US?
I can personally attest that the MXUS 4T has quite a bit more grunt than the TC3080 with same amp/volts imput and all other things being equal. BUUTTT.... the TC 3080 is 5 pounds lighter and the quality of the motor's construction is more refined.

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