Hey all,
I’ve got a strange problem with a pair of Maytech v6 ESCs both of which are running FW 5.1. After accelerating above a certain speed (~5mph), if I let go of the throttle it won’t respond anymore until I coast back down below the magic speed again. If I keep a light throttle to maintain a speed above that magic point, it’s fine and doesn’t cause issue. Issue is when I release the throttle above that speed.
After repeating the problem back at home I checked for faults and found both ESCs where throwing over current faults:
Fault : FAULT_CODE_ABS_OVER_CURRENT
Motor : 1
Current : 18.0
Current filtered : 10.4
Voltage : 47.21
Duty : 0.351
RPM : 19312.8
Tacho : 8615
Cycles running : 23
TIM duty : 2361
TIM val samp : 3360
TIM current samp : 3360
TIM top : 6720
Comm step : 0
Temperature : 29.91
What’s strange is that I set my general amp settings for both the ESCs way higher than this for absolute limits:
So I set the absolute max value to 150A and although I didn’t have a chance to get it to max speed before dark it definitely seems to have fixed it. Very strange, I’d expect the FW to have reported a current value at or above the previous limit. Is this a known bug? It seems like if the FW is to properly honor the abs max value then it should be reported in the fault code if anywhere
Oh one other quick question! If I want to keep the max target amp draw of my pack at 50A, that is when I fully engage the throttle it should try not to exceed that much draw off the pack, I can have my motor amp max way higher than that battery max value without issue right? For example if the ESC was a perfect machine that took 10A @50v off the battery and stepped it down to 25v I’d expect up to 20A be able to be drawn through the motor. I want to increase my motor max amps to manufacturer specs so long as it shouldn’t draw more than specified off my pack.
