nope it was never set and tbh i never knew about remote timeout failsafes until now so i never had one set but ill definitely setup the timeout setting so this wont happen again.
This is the case, there is a failsafe in place. Thereās even a timeout value you can set for how long it will wait before it drops you to neutral throttle. The only thing that should keep your throttle going after you let off of it is negative ramping time.
Hmmm. Now thatās weird. Second board Iāve heard of doing this.
what is this called and where is this setting?
need to check mine.
app > general > timeout ms and brake current is near the top
what would be ok parameters there?
thats a good question
Personally I have mine set to 500ms but the default is fine at 1000ms.
I havenāt had a remote disconnect in 3+ years at this point, so really the only thing that can cut acceleration are faults. In addition, your fault timeout can be adjusted so it doesnāt cut out for a full 1000ms as well. IIRC mine is set to 100ms.
Theoretically with 1000ms timeout + a 0.2s default negative ramping value, a board could continue for 1.2 seconds after losing connection.
@Takachi14 was it spinning longer than that? Still spinning after it crashed?
mines didnt have brake timeout amps set so my board just kept goin once the board ran out of range
it didnt have enough runway for me to see it free roll from range cutout
Eh? Iām not sure anyone sets that.
So impossible to know if it was still trying to go after 1.2seconds?
u can set timeout brake current i never had that set to anything so it was 0amps
unless i replicate it no. Once i get my board back up and running ill test in a massive open area to see if the board will keep goin after 1.2 secs
Brake amps seems scary in case of unforseen timeout.
id get rid of this sharpish.
I got literally the same setup, same deck, same enclosure and same blue bergs!!
What are the specs?
its not the wands fault XD
So hereās why I think you might have just disconnected and the timeout/throttle ramping did the rest:
The receiver itself is pretty dumb. Itās receiving packets from the Wand over NRF-ESB comms and itās pushing vesc command packets over the UART to your ESC.
Thereās no code running on the NRF/BLE receiver that would allow for it to send throttle commands unless itās receiving packets from the Wand. So if you have lost connection to your board, itās defaulting to the ESC fail-safes and timeouts as the only means of input.
My theory, as Iāve observed this happen before:
Board is idle at 0 throttle, there are connectivity issues with the remote and the user gives the board throttle. Because of the interference it grabs the first input at a higher level than it would, 0 ā 70-100% all at once, before falling to idle timeout.
If you have 0.4s positive ramping + 0.2s neg ramping + 1000ms timeout thatās potentially up to 1.6 seconds where your board is not responding but ramping up/down in throttle. Couple that with no rider on the board and vrooooom!
Either that, or your connection was maintained and you got an erroneous full reverse throttle signal from the potentiometer input on the Wand.
Gonna need some more info on this dawg