This problem will only appear in the FOC mode brakes, FOC acceleration is no problem, BLDC is no problem,
Brake DRV error at low speed, and then brake failure, the following error information
Fault: FAULT_CODE_DRV
Current: -2.0
Current filtered: -7.4
Voltage: 40.87
Duty: 0.014
RPM: 2238.6
Tacho: 4164
Cycles running: 11314
TIM duty: 120
TIM Val samp: 2
TIM current samp: 4200
TIM top: 8400
Comm step: 0
Temperature: 24.33
Fault: FAULT_CODE_DRV
Current: -11.5
Current filtered: 7.6
Voltage: 40.84
Duty: -0.022
RPM: 1836.6
Tacho: 4298
Cycles running: 289
TIM duty: -186
TIM Val samp: 2
TIM current samp: 4200
TIM top: 8400
Comm step: 0
Temperature: 24.23
I have the same problem with the (Maytech) VESC 4.12 fw 4.18 with 6S battery with 2 different type 190KV BLDC motor. It happening at the very first Break so no FET overheat!
Yeah, we're gonna need a bit more information.
This problem will only appear in the FOC mode brakes, FOC acceleration is no problem, BLDC is no problem,
Brake DRV error at low speed, and then brake failure, the following error information
Fault: FAULT_CODE_DRV
Current: -2.0
Current filtered: -7.4
Voltage: 40.87
Duty: 0.014
RPM: 2238.6
Tacho: 4164
Cycles running: 11314
TIM duty: 120
TIM Val samp: 2
TIM current samp: 4200
TIM top: 8400
Comm step: 0
Temperature: 24.33
Fault: FAULT_CODE_DRV
Current: -11.5
Current filtered: 7.6
Voltage: 40.84
Duty: -0.022
RPM: 1836.6
Tacho: 4298
Cycles running: 289
TIM duty: -186
TIM Val samp: 2
TIM current samp: 4200
TIM top: 8400
Comm step: 0
Temperature: 24.23
I have the same problem with the (Maytech) VESC 4.12 fw 4.18 with 6S battery with 2 different type 190KV BLDC motor. It happening at the very first Break so no FET overheat!
Have anybody a solution for this DRV error?
same problem here! with maytech vesc too! Maybe they had a bad batch?
Yes, I bought another brand of VESC. There is no such problem. Their batches are not good.
My VESC is Maytech
This issue is solved by adding a paralel capacitor to C18. In total I have arround 13uF capacitance and it works great.