VESC doesn't draw full power

ESK8 Electronics
1

Hey everyone A buddy of mine is using 2x esk8 VESC 4.12 in his mountainboard and he’s got a the weird problem that his setup only draws ~1400W total.

Here is his setup: 2x esk8.de 170kv 3kW Motors 2x esk8.de 4.12 VESC Zippy 10S 8000mAh Lipo 15:80 Belt Transmission

We tried in FOC and BLDC and didn’t touch anything in VESC Tool besides Motor Detection and different Motor/Battery max combinations (of which all should have used much more than 1400W in dual). The Turnigy Wattmeter only shows 1400W even with full throttle (which is also fine) and i don’t know what to test further. His whole driving experience isn’t that great so there’s definitely no fault in the wattmeter.

I’d consider myself as fairly good with VESCs so i don’t know where to begin troubleshooting. Any input would be appreciated!

2

Could the wattmeter be limiting current, is it inline or a sensor meter?

3

Have you tested under load? Set battery max to 30 each then it should be drawing 1080W per VESC under heavy load.

4

It’s inline and i also thought about it. It’s a 100A 60V turnigy wattmeter so that at least shouldn’t be part of it’s function. You also can’t find anything online about that. I will urge im to try without meter but i don’t know if it’s easily removable since he bought it used.

@myreala the wattmeter shows peak values and they were produced while driving. I’ve tried it myself, could pull full throttle and barely move.

5

I definitely would first try without the wattmeter

6

You can also buy a bluetooth module (it’s dirt cheap), and use Ackmaniac’s app on your phone to check the real time values.

7

Thanks! Didn’t think of that, will tell him.

Currently we are suspecting the antispark switch, didn’t know it had one before :smile: