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Controller (VESC) not going over a certain amout of motor amps

AxelSSS

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Joined
Jun 11, 2025
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Location
Norway
Hello!
I am using a vesc 75100 v2 on my Escooter, i am running 100 motor amps and 60 battery, but still wont go over around 60-70 amps, and the tourqe when standing on the scooter is just bad, i am wondering if anyone has a known fix for this and or is able to help me resolve this issue.
Im using a 52v 20ah battery with a sensorless foc motor
 
Motor will only draw the power it need to get the work done
Can your battery do 60 amps?
what power is your motor rated?
What is the torque/amp rating of your motor?
 
Hello!
I am using a vesc 75100 v2 on my Escooter, i am running 100 motor amps and 60 battery, but still wont go over around 60-70 amps, and the tourqe when standing on the scooter is just bad, i am wondering if anyone has a known fix for this and or is able to help me resolve this issue.
Im using a 52v 20ah battery with a sensorless foc motor

Probably the FOC parameters automatic detection aren't good. You need to play with the parameters to find which ones work well... maybe try the automatic detection with different parameters and see if you always get similar results for the parameters.

Also to try, you can force always hall sensors and disable the sensorless, that way you are disabling the source of issues when FOC parameters. You should get the max torque your motor can give for the specific amount of currents on set.
 
You should see if it is going to 90%+ duty cycle, I had a cheap flipsky VESC on a hub motor that just didn't like going full duty cycle at mid RPM, played around a lot and got it better but I think it was the low quality hardware was introducing a lot of noise, well I know it was I could see that, but that noise was causing the current controller loop to not want to push the duty cycle past 60% sometimes even though it was below the set phase current demanded. I messed around a lot with the PI settings although I don't exactly recommend you do this unless you know what you are doing.
 
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