No drag brake on my 1080.

[Smonkman]

Hey guys,
Ran into a new issue with my TF2 at my class 1 comp today. The drag brake no longer held on any inclines. I’m running a 1080 with a Holmes Hobbies Crawlmaster Sport 13t.
I assumed it was the programming on my 1080 but when I hooked up the programming card my Max Brake Force was 100% and my Drag Brake was at 100%, with the Drag Break Rate set a level 9.

Am I missing something? Do I have the esc programmed wrong or is there something else at play here?

Thanks!

 

[Voodoobrew]

Freewheeling, and your trim is probably off.

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[Smonkman]

Freewheeling, and your trim is probably off.

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Free wheeling is currently disabled. Should I have it enabled?

 

[Voodoobrew]

I can never remember which way is correct. But it is active drag brake. Or drag brake when not in neutral.

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[durok]

Pretty sure HobbyWing recommends that Freewheeling be turned "On" for use in a crawler, off for regular R/C vehicles.

They've never really explained exactly what it does, just that it has better linearity during low-speed running and also less heat.

"Off" is supposed to give slightly better acceleration.

 

[JimInMiami]

Pretty sure HobbyWing recommends that Freewheeling be turned "On" for use in a crawler, off for regular R/C vehicles.

They've never really explained exactly what it does, just that it has better linearity during low-speed running and also less heat.

"Off" is supposed to give slightly better acceleration.

Funny I was about to post a new thread asking just what the whole freewheeling thing meant, but at the risk of highjacking this thread. From the manual: "For a crawler we suggest enabling it. With it enabled, your crawler can have a better linearity during a low speed running and also less heat."

 

[Voodoobrew]

Basically then when freewheeling is on your tire will not freewheel faster then the motor going down hill.

Drag brake only works in neutral.

Freewheel is drag brake when you are not in neutral.

So if your throttle trim is off, you are not in neutral and not using drag brake. If freewheeling is also off your call will roll downhill with gravity or motor speed, which ever is faster.

Replace active drag with freewheeling in this video
https://youtu.be/zvGCOfVIXVM

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[JimInMiami]

Basically then when freewheeling is on your tire will not freewheel faster then the motor going down hill.

Drag brake only works in neutral.

Freewheel is drag brake when you are not in neutral.

So if your throttle trim is off, you are not in neutral and not using drag brake. If freewheeling is also off your call will roll downhill with gravity or motor speed, which ever is faster.

Replace active drag with freewheeling in this video
https://youtu.be/zvGCOfVIXVM

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Voodoobrew, many thanks for that video, it finally makes sense to me!

 

[CamoColton]

Basically then when freewheeling is on your tire will not freewheel faster then the motor going down hill.

Drag brake only works in neutral.

Freewheel is drag brake when you are not in neutral.

So if your throttle trim is off, you are not in neutral and not using drag brake. If freewheeling is also off your call will roll downhill with gravity or motor speed, which ever is faster.

Replace active drag with freewheeling in this video
https://youtu.be/zvGCOfVIXVM

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Finally a concise explanation for this. I always wondered what it actually did but never turned it off to try to figure it out.

You'd think though with a name like "freewheeling" you'd disable, not enable it for the effect it actually does. Or call it freewheel braking or something.

 

[durok]

Finally a concise explanation for this. I always wondered what it actually did but never turned it off to try to figure it out.

You'd think though with a name like "freewheeling" you'd disable, not enable it for the effect it actually does. Or call it freewheel braking or something.

Probably an issue with translation, many instruction manuals haven't had adequate proof-reading, coming from overseas companies... ;-)

 

[Voodoobrew]

Probably an issue with translation, many instruction manuals haven't had adequate proof-reading, coming from overseas companies... ;-)

Maybe its on purpose...


But generally Freewheeling is considered the opposite of regenerative braking, which is what this option should be called.

 

[King Dork]

I’m glad that I stumbled on this thread. I’m gonna check all my 1080 escs now because I’m pretty certain I would have disabled it on them just given the name of the setting. I got so irritated with one of my trucks because it crept even with all of the settings maxed. Ran out of patience and bought a Holmes BRXL (?) to replace the 1080.

 

[Voodoobrew]

This is why throttle calibration is important. If you were actually still in neutral and creeping down hill then you are over geared IMO.

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