cogging hobbywing 150A
 

Hello I have just put the esc in my e-maxx with a neu 1515 2.5d on 5s geared for 42mph.... But with the truck is runing in very slow speed, about 1mph-2mph its do cogging..... when the truck go more fast, about 5mph it doesn't have cogging..... What is causing the cogging?
The wires have good solder.........
my esc program is:
Running mode: Forward/reverse with brake
drag brake:0
cut off: 3.2v
Star mode(punch): level 3
max brake force: 100%
Max reverse force:25%
neutral range: 9 normal
Timing: 11.25
Over heat protection: Eneable
Motor rotation: Counter Clockwise
Lipo cells: 5

Are you sure it is cogging? I know that at low speeds, these ESCs do do a sort of lurching behavior.

I am not sure.
the truck at low speed run a meter and do a little stop, and continue running.....

Yeah, that's what I thought. Near the bottom of the review I posted for the 80A version, there is a link for a video. It's kinda blurry, but you can definitely hear the lurching which I suspect is what you're seeing. Generally, true cogging is where the motor doesn't actually turn a complete revolution, but sits there quickly oscillating back and forth (and pulls a lot of ESC-killing current while doing so).

YES My car do it, What can i do for reduce it?
regards and thank you

The only way I know to reduce it would be to go above 2mph. :smile:

I believe that's just the result of the firmware programming and there is no way to reduce/eliminate it except to go a tad faster. Looks like HW needs to tweak their starting algorithm a little. But really, how many people get BL systems to go slow (other than crawlers of course)? If we wanted that, we'd stick with brushed motors.

ok, THAK YOU BRIANG, I think that HW is a very good.......... but not for crawling........
And the last question, is good my esc program?

No problem!

The programming is easy once you know how to do it. Somewhere in that thread I linked above, there is a post that more clearly explains how to program it. The manual isn't totally clear on how to advance to the various settings.

One word of caution; IIRC, changing the punch to 0 could FRY the esc. So I wouldn't touch that setting...

Hello I have just run my truck about 40minutes and it run very well. The esc run well and finish 100ºf, And the neu 1515 2.5d runing always between 131-140ºf.
Regards

What about gearing down a little bit? Wouldnt that help out?

Gearing down will just slightly reduce the point where the surging behavior stops.