Hi Guys
Spent long time to finish my Gokart project , after some issue with single VESC control by PWM , I finally move to Dual VESC 75V 100A
hardware :
13S7P with balancer 60A , 2 x 48V 800W wheel hub
So now , I use CAN bus 125k between front and back or my vehicke
On the front when is a CAN bus "transmitter" I made a brake and accelerate paddle
on tge back - when is a CAN bus "receive" , is connect tto VESC and control what front is sending to the rear
is there anyone who is able to point to right direction ? Now , I can drive up to 48km/h and accelerate with 90A is good enough
But with -90A brake ,, is hard to stop well ,
what value your recommend to use for brake ?
can be more than ESC can handle ? 150A for example ?
I am confuse because over CAN message I send
#define BRAKE_MAX_CURRENT 100000 // from what I see that value is set up with mA , so is 100A
and is doesnt look like it accept CAN message , because more response I see if i adjust Motor current Brake directly in VESC
any suggestion is welcome guys
-200A for the battery reverse current is most definitely too much/unsafe. Can your battery take that much charge current? You want to set the reverse battery current max to the max charge current your battery is able to accept and you would use the motor negative current setting to adjust the braking force: the more negative current you set, the more braking power you will have. You would want to figure a comfortable number based on the vehicle gross weight and rate of braking you would want to achieve. Probably a good number to start is 1/3 of the forward motor current. For example, motor current 100A, so the braking power is -30A. Then tweak the negative number if you need more or less braking power.
NextGen FOC High voltage 144v/34s, 30kw (https://vesc-project.com/node/1477)
Hi.
this is just sample, as i need to adjust it finally
My battery balancer is 60A common port, so 60A discharging, 60A charging as I understand that correct
to underdtand motor brake - it will use also VESC to brake it ? so motor brake power should not be more than VESC power , do I am right ?
Martin