General discussion

In older firmware up to 3.65 the motor runs well in sensor less control. But at firmware V4 the motor jerk but does not spin. It does spin when perform motor profiling. So as a result, I revert the firmware version back to V3.65 and continue using it. The motor is a U8 170KV which has 21 pole pairs from Tmotor. Will it be possible that the inductance of the motor is too high which cause it to work abnormal. Out of few times result i collected it shows a winding resistance of 58mohm and 47uH.

I  look at firmware files but I couldn't figure out the main algorithm for motor control. 

Is there a schematic diagram of code? 

That makes more understandable for me.

In short, I bought an engine(6354.KV190.1650W) from the seller with aliexpress and I can not configure it, also the scheme(Dual FSESC4.

Hello all!

I'm experiencing some issues with the 2.02 version of the tool.  I have a 0.95 older version that works perfectly.  

Hi.

i seems that the source code have some servo functions, but i didn t managed to find more real Information in the Web.

Is it possible to use the VESC as a Servo controller together with a sensored 3-Phase brushless Motor ?

(Setting Current and Speed, commutation is fixed, read back from the sensor maybe used to decrease the current until steplost happens).

If this is not possible at the Moment: are there any plans to implement this function?

Its possible use IMU balance APP and PPM  signal radio controller in the same time? I want realize a self balance robot

Thanks in advance

Good morning all,

I use a VESC 75v 300A with an Alien Power CA80 electric motor. VESC is a very good product and has great functionality  !

Unfortunately, during the tests I found an inconsistent battery current.

On the following graph at the end the motor current is 145.22A and the Duty cycle 90.00%. So I should have a battery current of around 145.22 x 0.9 = 130A. However, the value indicated is 99A, very far from that calculated.

Can you help ?

Thanks

Jean

Hello all,
my intention was to control 2 BLDC motors with VESC6 MKIII (one each). The electrical values of these motors are within the VESC's rage (48 V, 80 A max), but they weigh 7.8 kg. Starting the VESC Tool FOC wizard the heaviest motors mentioned there are about 2 kg. And at the screen occures a warning not to choose a wrong weight - this could destroy the motor.
Is the VESC able to control my motor? (HPM3000L, 48V, Goldenmotor.com)
Gruß, Günter

Anyone have a lipo power cable wiriing diagram for the MK3 pushbutton start setup when using 2x Lipos in series on a Trampa ESK8 mountain board.  The part that's throwing me off is the charging port...is it ok to charge the lipos on the same port that is connected directly to the 2x MK3s?  I imagine they're built to handle the charging amps but am not really sure how that is supposed to be setup.

Thanks for any help!:)

Adam

While tuning the motor, how does the VESC measure the magnetic flux?

If it calculates from voltage produced on each phase, then does it counts IR term with back-EMF?

Or does it assume that back-EMF = total voltage produced on each phase?

Because for most motors which is laminated, they need very small current to rotate with un-loaded condition so IR term could be assumed 0.

But the motor I'm testing is not laminated so it needs high current to rotate, which means IR term isn't negligible.