General discussion

hi

i am planning to use a vesc6

in a high power scooter project and want to make heavy use of coms port.

adc for throttle, switch for variable regen   and bluetooth to monitor speed ect.

from what i have read so far it looks like this might not be possible, as bluetooth  uses rx pin but so would the switch for the regen. is this correct?

is there a way to use a spare adc pin for the regen switch ?

thanks

just been on trampa website , all traces of 

vesc6 are gone where to buy from now ?? 

thanks

Hello every one, good to be back.

I can't wrap my head around the current situation - do you have an idea? FOC with Hall Sensor, LRP Dynamic 8 1600kv Inrunner motor.

*** Never mind, looks like there is something in my code that's creating the blockage ***

For my robotics project I would like to be able to have access to the vesc tachometer value.  I'm using Rollinggeckos amazingly helpful VescUartControl. As a first step I have my Teensy (arduino like microcontroller)  get a bldcMeasure struct from the VESC, then get the .tachometer value from the struct and display that on the little screen I attached (for now).

Hi Guys

When I accelerate on grass with 200mm tyres,
if I have the motors set to say 75A each, and I take off full speed, I get a violent wobble of the rear truck and motors stop partially suddenly. Which I am calling a de-sync of the motors. 
It will pass this after a fraction of a second, and then continues normally, I believe its just occurring at peak current. 

Is this a matter of lowering the amps? (as it cant handle approaching the limit and thus spazzes out?)

Or modifying the observer gain and just see what happens?

Hi,

I'm using the VESC6 in my electric scooter. I have the throttle input going into ADC1. I want to use a push button switch on the handlebars to swap the motor torque direction ie. to activate regen mode. Essentially the throttle will become a variable regen brake whilst the switch is pushed.

My question is, what input do I connect the switch to? Is there a pin with a pull up resistor so the switch can just pull the input to ground? It'd be nice to avoid having to do all that myself.

Thanks in advance,

James

Latest firmware, FOC, Hallsensors, 1600kV motor, PID Speed Control

At very low speeds the motor does not rotate smoothly, it more looks like there are ripples. Realtime Data shows those nicely. I wonder if you can do something about that. In fact I don't understand the root cause of that. Thanks to the Hall Sensor the Vesc knows which phase to use and based on the target speed, it can apply the amps in a sinus form of the proper wave length.

Hi, 

Does the firmware somehow keep track of the RPM separately with the HALL sensors? Any idea on how to implement that?

My motor COULD turn faster than the battery allows. So when that is almost happening I will set the current to 0, and command three relays to disconnect the motor (two would be enough in theory, but I want to keep the current paths symmetric) But I want to know when it is safe to reconnect the relays again. So it would be nice to use the hall sensors to keep track of the speed of the motor. 

Hello everyone,