General discussion

Hi,

I'm looking for any advice from anyone who may be familiar with using the VEVOR (or other) MY 1020 D inrunner motor with a Flipsky 75100 controller. I'm trying to use it in an electric dirt bike I'm building for my 8 year old daughter. But I can't get it to accelerate or run smoothly, it's very jerky and the motor is really bucking and kicking hard as it passes through certain rpm bands, and then near full throttle. Earlier on it threw the chain off. I've absolutely no idea what to change in the VESV Tool settings to make it run smoothly.

forget

I have a strange issue with a motor configuration on an ebike. During the test the motor is locked up with a break. Typical behavior of vesc would be to ramp up the duty cycle with increasing current linearly and maintain 0 erpm. Here that is true to some randomly changing point(usually 20-70A), but then the duty jumps to >0.2 and ERPM is at ~4K. It seems that the observer is unstable at higher current, the motor "overtakes" its target position.

Hello All,

I want to use VESC to drive some coils so it can illustrate some basic principles of electric motors. I use a coreless disk generator with nine coils in Y connection. I would like to excite this disk so I tried to use foc_openloop_duty from VESC devtools console. It seems to work, but it only last around 1 second. After that it stops generating the rotating magnetic field. Is there any way to set VESC generating this rotating magnetic field for longer times?? Thanks, best regards.

Diego.

Hi there,

It's been a while. I'm finishing my electric assisted Foil and running on 8S 12AH with a Maker X SV6 controller. 

I just can't get it work. it's becoming mystical. I've tried many things but unsuccessful.

either on 5.2 or 5.3 (removing the phase filtering)... the FOC detection fails. 

I've used the hw nolimits but also the standard one.

Did I miss something?

https://www.youtube.com/watch?v=02hXPcCKOco&feature=youtu.be

Thanks

Hi,

My project consist of hybrid powerplant for UAV, it's ICE generator with 4.4kW spinning BLDC  and 12S Lipo batteries. Currently I stuck with voltage regulation from generator, my main goal is to vary RPM on gas engine depending from load, but then I am getting variable voltage to charge batteries and for system supply. It's around 15-50V range. 
 

As far I know, VESC has regenerative braking, so my Idea was to use it. As bonus, it also can start engine, when running as motor. 

Hey Guys,

Got my first Trampa VESC recently and am working hard on a big project for it. I made a video going over it all, and this will possibly be the first in a series of videos coving this build.

Is it a big no-no to give small amount of power with anti-spark resistor connected on the battery->vesc connection?

I'm new to all this, including this forum, hope this is the right place to post this issue I'm having. So yeah, I'm running a "Flipsky BLDC Belt Motor 6374 190KV 3500W" also a, "FSESC 4.12 50A Based on VESC4.12" and a, 36V 20ah Lithium with a BMS that allows 35amp peak and 30 amp continuous. I've fab'ed the motor onto my son's 4wheeler, its pretty small, weighs 80lbs, he weighs 40lbs, 13 tooth motor sprocket driving a 64 tooth axle sprocket, tires are 12" diameter.

hw4.0

motor:42jsf630as-1000, 8 poles 

vesc:release_5_03

When measuring the res and ind, I fould that the value changes, about the res result, can I say less than 3A is too small to lock when measuring the res, for when larger than 3A, the res result is almost the same.

But about the ind, I really have no idea why it changes in different duty, and it even shifts in same duty.

I used a RCL to test the res and ind between phase to phase, the res should be 0.55 omh and the ind should be 295 uH. Neither matches the result.