Electric Vehicle Discussion List - Uve Rick's EV Resources

Uve Rick's Motor Page
Rescued from Geocities

Motor Chart

The equation for current vs. torque is: Torque = k * i^n.
The equation for voltage vs. torque vs RPM is: V = (d * rpm)/((a/(torque ^ b)) + c).

Model	HP	Weight	Diameter	length	k	n	a	b	c	d
ADC FB-4001	28	143	9.1"	14.5"	.0085	1.55	46264	.907	2068	120
Kostov	30	173	10.7"	17.9"	.0167	1.46	24414.8	.071	-14737	144
ADC XP1227	28	120	8"	15.5"	.0282	1.37	21163	.19	-4663.98	192
ADC XP1263	28	120	8"	15.5"	.0172	1.43	23633.9	.447	617.1	168
ADC 203-06-4001	28	120	8"	14.5	.0118	1.43	16796.4	.209	-3380.45	108
GE 5BT1346B50	?	?	10"		.0076	1.50	21592.4	.206	-6299.34	108

torque = k * current^n

Enter values for torque and current from the motor graph and then click on the calculate button.

Have patience, it takes a while (up to 5 minutes).

voltage = (rpm * d)/((a /(torque^b)) + c).

Have patience, this takes a long time.

Thanks to Gray Flo at InnEVations for supplying the motor curves for the Kostov, XP-1227, and XP-1263 motors.