General discussion

Hi guys,

I've built an e-kick-scooter and it works very well, except the German laws ;)

Driving electronic vehicles in the street without number plates, insurance, helmet, etc is illegal. But, there are "pedelecs", which are the smallest models of the e-bike section. Those are (nearly) handled as regular bikes, having the following limitations:

P_max = 250 W (on the wheel)

v_max = 25 km/h

- only Assist Mode: fire at 250 watts while pedaling (no throttle)

Hi guys, I'm having a bit of a strange problem with my vesc. I've got it set up on a scooter with a D5035-125kv sensored motor (the hobbyking kit) using a twist grip throttle hooked up to the adc pin. I get what sounds like the motor loosing sync at high throttle input, but it only seems to happen over a certain speed as taking off from a stand still at wide open throttle I don't see the issue until I am about 75% of my maximum speed. If I return the throttle to zero and then open it again the motor starts up again like nothing happened.

Hey community,

I actually am really frustrated now, short overview of what happened:

Hello. I'm trying to connect to the vesc by hm-10 module. Everything is wired like on image below. Red led on module is blinking quite slowly. VESC tool mobile is recognizing module, but after clicking "connect" nothing happens, just red led stops blinking and flash constantly for about 1 sec. Tried on 2 phones- Xiaomi mi 5s plus and Huawei p9 lite- both the same. After many tries i got such information (2nd image below). What i can do now? Is anyone knows what that error means?

Hello,

We are having a problem with the VESC Re-gen/braking Amps tripping out the BMS on the battery pack we are using.

We are having to disable the braking function, it would be good to have braking on our project so we can slow down, but for now are running this in 'current' mode and freewheel if no throttle.

Question?

I am having a problem that results in absolute overcurrent faults where it appears that the foc observer / phase looses track of the rotor position.

system specs:

vesc 4.2 running fw 3.38,

motor is alternator with 3A rotor current (basically bldc motor where the permanent magnets are replaced with an electromagnet)

real life phase measurements from lcr meter is 0.09ohms, 88uh at 20khz

running sensored with as5047 encoder (and it is so butter smooth with the encoder, until the fault.) (this fault happens in sensorless mode too)

I'm using the VESC Tool as a controller for a motor that is being used to test flexible drive shafts. I like the feature of picking a desired RPM, but when I get to higher RPMs, I have to manually ramp up the motor speed so I do not break the shaft. Is there a way where I can enter my desired RPM and the motor will accelerate to that speed uniformly over a finite period of time?

We would really love a bit of guidance. Thanks!

hello , i have a motor witch i like to run with vesc .

the motor runs in BLDC or FOC mode but does not reach its maximum speed.

the motor should have 200rpm (20inch wheel) but only reaches only 80rpm @ 24V

how can i set the rotating field frequency of the motor in the vesc software?

Hey,

I have soldered the MPU 9150, but because of the footprint of the chip it is impossible for me to know if I soldered it correctly. What would be the best way to test it. Is there a function in the VESC tool that will help?

Thanks

Hey everybody, I am trying to figure out, how to flash benjamins software on a nrf51822 module.

Still being kind of a Tech-Noob, I am stuck with this and don't have any idea how to proceed.

Can someone point me in the right direction?