Dual sensorless motors from one ESC?

[Digger]

I have seen several dual motor/dual ESC setups in Clods as well as other dual-motor applications. My question is why can't you just get a higher-powered esc and paralel the two motors?

The EZ Run brushless setups are sensorless, and the 35amp esc will run at room temp all day on the 13 turn motor. Why wouldn't it work to get the 65amp ESC and just "Y" each of the three motor wires to drive dual 13t(3000kv) motors?

 

[william g]

Neil,
Sensorless is not exactly a correct name. Even the sensorless setups sense feedback through the 3 wires to know where the rotor position is. So if you put 2 motors on 1 ESC the ESC could not put out the right power pulse to turn both motors correctly.

 

[Budhatrain]

brushless motors and esc's use an electronic timing system to turn that baby round round (just like the song). One esc electronically controls one motor and cannot run dual motors because of this timing.

Wiki does a great job explaining the difference between brushed and brushless setups here http://en.wikipedia.org/wiki/Brushless_DC_electric_motor

 

[Digger]

Oh well... it would work in theory if it weren't for the sensing thing... LOL!