Controller for 12000w hub motor

[Thomasjames]

just bought a hub motor off ebay. It is 72v 12000w. The seller said it was from a stealth bomber bike. The battery I'm currently using is 72v 50ah with maximum discharge of 300 amps. The controller I'm using is a fardriver 72450. I don't know if this controller is allowing me to get the full potential of this motor or do I need a bigger controller?

Current Controller has max batt current of 200a and max phase current of 450a.

 

[lnanek]

72V x 200A = 14,400 watts. So over 12,000 watts anyway. You could use a bigger controller, but make sure it has a temperature wire to the motor and thermal throttling.

 

[dominik h]

Most of this stealth clones use a Sabvoton SVMC72150 with 150bA and 350pA , so the 72450 is a little stronger.
But if you can afford it, I would go for a ND72680.
The bigger controller gives you more tourque from a standstill.
If you already have the 72450, then just try it.

 

[Thomasjames]

Most of this stealth clones use a Sabvoton SVMC72150 with 150bA and 350pA , so the 72450 is a little stronger.
But if you can afford it, I would go for a ND72680.
The bigger controller gives you more tourque from a standstill.
If you already have the 72450, then just try it.

I am able to ride just fine with the 72450. I am able to do 75mph. The only issue I'm having is that when I take off from a standstill, it's very slow and jittery, but after it starts rolling to about 20mph, I can accelerate really quick. I've tried adjusting different parameters but no luck. Also if I give it too much throttle when I take off from standstill, I'll get a hall sensor error. After the bike gets going and then I full throttle, there won't be an issue. I was just seeing if I was to get a bigger controller, would it allow me to take off faster? What's the max phase amp can a 12000w motor draw?

 

[dominik h]

I run a ND721800 with 400bA and 1400pA on my 13" QS72V10000W 60H motor in a 190kg heavy scooter, toopseed 125kmH (little over 75mph)
Before I tested the motor with the ND72680 >> slower start and jitter at top speed.
The higher phase currents give you more starting tourque. I started with 800pA and raised to 1400pA, now it starts like a midsized motorcycle. The controller now takes 30kW at 30kph, before with the ND72680 it was 25kW at 50kph.

I never had a hall error.

I do not know how this compares to your 12000W bike motor.
Do you have pictures from your motor, probably where can be seen what motor it is exactly?
What is the size of the phase wires?