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by district9prawn
05 Jun 2018, 13:07
Forum: FOC
Topic: FOC on eBike - cuts in acceleration
Replies: 5
Views: 1698

Re: FOC on eBike - cuts in acceleration

Isn't observer gain of 2.37 very low?

I have a vesc 4 on my ebike and have phase at 130A and abs max at 220A. The configuration has proven reliable so I'm comfortable with such a high current threshold for faults.
by district9prawn
05 Jun 2018, 12:39
Forum: Hardware Problems
Topic: Vesc6 GVDD under voltage fault.
Replies: 3
Views: 1203

Re: Vesc6 GVDD under voltage fault.

I was having this same problem on another HW6 board I was soldering. In this case it turned out that some solder mask had peeled back on the DRV ground pad and the tinned area of ground pad extended all the way up to some pins, shorting gate drive to ground. At least it was able to be fixed with ref...
by district9prawn
18 May 2018, 04:27
Forum: Hardware Problems
Topic: Vesc6 GVDD under voltage fault.
Replies: 3
Views: 1203

Re: Vesc6 GVDD under voltage fault.

The fets checked out fine and it ended up being the drv. No idea how but replacing it did the trick.

Ah the drv....
by district9prawn
15 May 2018, 15:35
Forum: Hardware Problems
Topic: Vesc6 GVDD under voltage fault.
Replies: 3
Views: 1203

Vesc6 GVDD under voltage fault.

Hi all, I finished soldering my vesc 6 and was able to power up and flash firmware successfully as well as stream RT data in vesc tool. When I tried bldc auto detect, I got GVDD error immediately. When trying RL detect in FOC, the motor buzzed very briefly and I got the same error. Fault : FAULT_COD...
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[phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1236: count(): Parameter must be an array or an object that implements Countable

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