Its a series motor - the current goes through the armature then the field coil
Remember the voltage and the current are dependent on each other
For any given rpm and current there is ONE voltage that will achieve that - the controller takes the battery voltage and reduces it to the correct voltage for the motor
Rough numbers - for illustration
Zero rpm --- 1000 amps motor ---- 15v motor ==== 150v battery and 100 amps battery
1000 rpm --- 1000 amps motor ---- 45 volts motor ==== 150v battery and 300 amps battery
2000 rpm --- 1000 amps motor ---- 80 volts motor ==== 150v battery and 533 amps battery
3000 rpm --- 1000 amps motor ---- 110 volts motor ==== 150v battery and 733 amps battery
4000 rpm --- 1000 amps motor ---- 140 volts motor ==== 150v battery and 933 amps battery
5000 rpm --- 800 amps motor ---- 150 volts motor ====150v battery and 800 amps battery
6000 rpm --- 600 amps motor ---- 150 volts motor ====150v battery and 600 amps battery
Hi Duncan, thanks for your great technical reply. Love the voltage/current breakdown. I poorly explained my theory im sorry.
What I'm talking about here is that inside the warp9 the two pairs of brushes are connected to the external brush terminal posts in parallel (not in relation to the field posts).. the same for the two pairs of field poles they are in parallel with the field terminal posts. (Not in relation to the brushes terminal posts).
Then "externally" we run these two sets of connections in series. I do understand that the motor is called a series wound motor due to it being connected with its brushes and field terminals all in series with each other in the visible cable circuit to the controller.
So what I'm suggesting is:
The 4 field poles all connected inside the motor in series rather than parallel.
Then connected in series to the brushes and those 4 brushes also connected internally with each other in series rather than in parallel. And finally back to the controller circuit.
The idea behind this is that it would half the "current capacity" of the motor but at double the voltage without reducing the torque provided. Plus for temporary acceleration burst you could use 1000A at 288V and the motor sees only the same voltage at each brush contact as the normal configuration (at 144V) but you now have the equivalent of running a 144v controller with a 2,000A peak current for launching hard off the line.
Of course the idea is that this would also mean at regular cruise conditions your only running rather low battery current draw at the high system voltage. Potentially better overall efficiency etc etc. But with the ability to very very briefly push 288-300kW through a Single warP9 motor with a Soliton1.