Mars ME0913 Owners and discussion thread

A

atbrandt

100 µW
Joined
Oct 16, 2010
Messages
8
As I've just received the Mars Electric ME0913 motor, i thought it useful to start a thread discussing the experiences with this motor and create a place for people that consider buying this motor to find info on it.

This is the official site of the motor:
http://www.marselectricllc.com/me0913.html

Some specs:
- 12kW continues; 30 kW peak
- 849,- USD official price
- 92% efficiency between 24-96 volt
- Brushless BLDC / PMSM
- 15.8 kg (seems heavier; need to confirm)
- temperature sensor
- Hall sensors
- 4 poles
- http://lib.store.yahoo.net/lib/yhst-57437235823410/drawingme0913.pdf
- cooling by internal fan
View attachment yhst-57437235823410_2131_0.jpg\

Nice DIY controllers for this motor (none done yet unfortunately):
Jeremy's Simple BLDC controller: http://endless-sphere.com/forums/viewtopic.php?f=2&t=23350
Rickys High Power Flexable motor controller: http://endless-sphere.com/forums/viewtopic.php?f=2&t=23205
Esden's sensorless Open-BLDC controller: http://open-bldc.org

Commercial controller for this motor:
Kelly KHB72701 controller@ ~999,- USD: http://www.kellycontroller.com/khb7270124-72v700aopto-bldc-controllerwith-regen-p-838.html

Cool applications:
- Main drive in Electric Cagiva project of poster
- Main drive in RIPPERTON's motor bike described on diyelectriccar.
- ??
 
such a nice motor you bought for a motorbike project .... :shock:
Have you already planned the kind of battery to use for the required juice? :p

I limited myself to a ME0907 ... the smaller brother with only one stator ....
Still it is an impressive motor: very massive and nice big bearings for
the heavy duty business of driving the motorbike's chain directly.
I'm planning to mount it inside an enduro frame from a 125 italian gas bike.
I expect to achieve something working in 2 years maximum ...
Should the result not appeal me, I will reuse the motor as a marine outboard. :oops:

have fun
 
zEEz said:
ps.

If anybody is interested in the internals of the mars ME0913, I suggest this link:

http://www.diyelectriccar.com/forum...ric-track-bike-41173p20.html?highlight=ME0913

It is about a nice conversion of a race bike to electric using this motor .....

have fun!
Click to expand...


Wow. I never would have guessed it was an axial flux motor with such a cubic form factor....

DSC00068.jpg

DSC00072.jpg

DSC00071.jpg

DSC00070.jpg
 
salty9 said:
Workmanship looks kinda rough. I would have expected better.
Click to expand...

As i said I bought the ME0907 (single stator) and I'm very impressed: it is really over-dimensioned and has above average quality bearings .... 8)
On the other side: It is MADE IN CHINA! :? this explains why it is reasonably priced, but also is the main reason
for the -below state of the art- appearance of the stator, just to name one part .... :|
But to be fair to the motenergy company and to Fiorenza: he is aiming to the best compromise between price and quality .... and from my perspective he met that goal very well !

have fun!
 
2rc76up.jpg


In relation to the idea, given few posts before, to use an e-bike 250W controller
to drive a Mars motor, this is the first step: test with a controller mounting the original mosfets
and reduced voltage ....

Controller is dead cold either during no load running and after repeated accelerations. :arrow:

Motor is rotating smooth, no particular noise, acceleration is strong
when taking care of keeping fix the motor to avoid ripping all the cables :mrgreen:

Not seen in the picture is the lab supply feeding the system: the 2 SLA batteries act as
a convenient current peak buffer.

Of course with just 24V supply the top motor speed is reduced ....

Indeed now I have to find those big IXYS mosfets, modify slightly the supply part of the controller
to accept around 60V :twisted:
 
tomaj said:
Is there any european supplier for those motors?
Click to expand...

not at the moment, from what I know .... but the company is
shipping worldwide at reasonable prices ...

have fun!
 
Hi Everyone - I thought I would share an unfortunate event regarding my ME0913 as to hopefully keep someone else from doing the same :cry:

I have been running my ME0913 for over a year now on a hybrid that I built. It has been a great motor and performs very well. I unfortunately modified the cooling system and then drove 30 fast / hilly miles at high amps. The motor is now cooked!! Images are attached.

Anyone need a toasted motor or know how to fix this?

Good luck!

DSCN1741.JPG

DSCN1742.JPG
 
Hi ncwa,

I am interested in a toasted ME0913, as long as the magnets are not demagnetized. Does not matter if the wires/coils are bad.

Sent you an email. FYI.
 
Hi guys,

where can I get sprockets (520 chain) or sprocket holder that fits on ME913 shaft?

Thanks :D
 
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