Just updated my FOCBOXES to the newest Firmware… now i have this “issue” as well… pretty annoying…
Is the @SkaterBoy58 way, stil the only way ?
It’s strange that it works as in BLDC Tool that setting is in a section labeled “BLDC only”
I think so. I set mine to 500 and braking is a lot more manageable
Is it something in vesc-tool you set to 500 ? Or do i need to do this bldc/xml thing ?
Edit the xml
If I don’t edit the xml file, just use vesc-tool to setup, can I do full break? thanks
Hi SkateBoy58, personally I do prefer strong brakes over weak ones… Imagine you are going down a steep hill at relatively slow speed. You will need brakes that have some grip to prevent an unwanted acceleration down that hill. People should be able to brake to a near stand still on a hill. Without strong brakes that is not possible. It is no big trick to release the brake trigger further when slowing down to a near stand still. If you ride a car you do the same, approaching traffic lights. On the last few mph you usually start to release the brakes a bit since the kinetic energy the brakes need to work against is getting very little close before the full stop.
A lot also depends on your motor and gearing. Your setup is quite rich of torque. In consequence your brakes do also work quite well.
The post was deleted so I don’t know.
He’s not complaining about the torque of his brakes. I’m having the same issue since updating to the latest firmware. Brakes are fine, then i get to about 2-3 mph and the motors lock up. It has nothing to do with releasing the break trigger… The max ERPM setting needs to be exposed for FOC, its as simple as that.
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These two topics should really be merged
I’m experiencing this as well on my new build. 6355, focbox, FOC, 16/40 belt. Slowing down/stopping from any speed above around 4mph is smooth - all the way to stand still. Anything below 4mph and it doesn’t matter how gentle I am on the brakes it just locks up and jerks.
Manageable but annoying. I’m using ackmaniac, has anyone found a solution other than editing the xmls yet?
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Editing XML didn’t work for me
Well that’s wank 
Yup I am subscribed to all these; hopefully a fix come about. It is present on all my builds. All ack firmware FOC sensored.
10s6p on 107s with 18/40 12s5p on 6shooters 20/60 6s3p on 83s with 14/36
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Still hate this “handbrake” thing.
Just set up my first FOC build and am joining this club. If anyone has any resources on exporting, editing and reloading an XML file with the VESC tool I would appreciate seeing them before I give it a shot.
In the PID Controllers section, reduce the value of “Minimum ERPM” and see if this fixes the problem. This value is used while braking, and if the current erpm is lower than this value, it switches to “duty cycle” mode and sets the duty cycle to 0 which I think causes this sudden sticky stop while doing low speed braking… Anyway, made it a lot better for me when i reduced this from 900 to 300, so you might wanna give it a try
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Where does it switch to duty cycle mode?