2 ESCs 1 Motor - can two ESCs drive a single brushless motor? 

Great video, 3 Phase Sensorless ESCs are not only driving the motors. They are also sensing the magnet positions by reading the zero-cross point of the floating wire. So, you cant connect them as parallel when internal comparator, power supply and the crystals have slightly different outputs. In your case, one of the ESCs are firing the different coil and the other ESC is thinking it's a generated EMF by the magnet and so on. Cheers :)

Quirky as usual Pawel - love it!

Glad this video exists, I was totally going to try this. LOL

When I first saw the vid title I wondered if u we’re going to use 1 esc for forward and the other for reverse

Great video andgood experiment thank u for the lesson.

Can you do this with brushed esc and motor?

what if you use two independent power sources? one for each esc?

can you make the two esc in series connection to make it 4s?

Did u try calibrating the esc's maybe they r firing at different times

So what about in series? And have you tried this with a sensored setup?

My only suprise is no magic smoke. I really thought it would produce smoke quickly. Chances of the 3 phase fire in harmony not good.... I have had luck with some controllers being larger running more than one motor though....

Well... Not the smartest idea, let's say. 😬 Great work, Pawel! 😊 Stay safe there with your family! 🖖😊

Hmmm, is it impossible to use some diodes from one ESC to the other or to the motor so current can only be drawn towards the motor, and have that ESC as "dumb", while the other ESC can flow in both directions read position, and simply allow the motor to draw some of the current through the other ESC via diodes?

What about sending the signal from 1 ecs direcrly to the transistors of the others

LMAO, you absolute legend. Result was disappointing but not exactly surprising.

Cześć Pawle. Ja taką właśnie akcję robiłem tak 2.5 roku temu. Oczywiście w afekcie ułańskiej fantazji bo miałem 20A a potrzebowałem 40A. No to myk jak by to zrobić. Spaliłem 2 esc. Skończyło się na tym że potrzebny by był synchronizator fazy i to przełączalny. Więc taniej wyszło nabyć nowe esc. Próbowałem jeszcze później rozkminiać temat ale z braku czasu porzuciłem temat.

Dzien Dobry Pawel, I have a question for you. Would it be functionally possible to use two AIO boards Stacked Act in concert to drive each four motors either as a quad Octo set up four props up four down, or if in configuration to set one board 45 degrees offset, as a planar octocopter? Or would the FC's fight one another. Conceptually as a dual redundant FC as purpose and function. Just curious. Thank you for your videos!

I believe it's not only the phase difference or the trigger channel, it was due to cross talk* ( not what we mean true crosstalk,) it is -one esc is sensing other's signal as back emf and tries to compensate for that and same for the other so they miss the true backward signal from the motor . Thankyou for trying though.

Not that I expect you to try this experiment again but I think I have an idea what might have gone wrong. I think the 3 phases were out of sync on the ESC's . Even after you got both ESC'S spinning in the same direction, I think the read channel was out of sync. It makes sense to me that the motor would still spin because BLHeli uses a right before read function which would allow both ESC"s to pump energy into the motor before monitoring for the 0 cross. At low power this would theoretically still cause the motor to spin, Then cause D-sync as the power increases. If you used and an oscilloscope to align all 6 faces it might work better-ish. 🤷‍♂️

What about 2 motors with 2 ESCs on one signal line from flight controller? Will that work?

Have you ever wondered what would happen if we replace the mosfets of a esc with higher rating mosfets to increase the current rating of the esc? Or what if we parallel solder additional identical mosfets to the existing ones to increase the current ratings?

I wonder if you can pull the traces on one board to get the control logic of a single ESC to run the fets on both ESC's. That'd make issues with losing sync between the two a non-issue.

im on the edge of my seat squinting for the bang and nothing. disappointing really lol thx for doing stuff we dare not to mate!!!

I was thinking about this the other day.

Not sure if this was asked in the comments below but can you then connect two escs to one motor but only use one esc at a time? Connect the two to separate channels on the receivers? Swap between channels via a switch? Thanks!! Asking for a friend! LOL!

Can you wire it in series

Bro please test ,modify cheap esc with external parallel mosfets ,,,current test

What about this with sensord motors .. if it's all parallel wouldn't them sinc do to the polarity revived threw the sensor wires.. because30+30=60Amp would be interesting, or a 300Amp rc car.. motor won't survive it but be interesting

Prepared to burn up two ESC's and a motor for science! (Or a YT video) but still, I like it! It makes me wonder though if it would be possible to make an ESC that could be upgradable in Amp rating like adding more fets and caps on a small board. The image in my head is similar to adding RAM to a PC, a small board with fet's caps etc that can slot into an expansion port on an up-gradable ESC. Just a thought! :-) :-)

Maybe need a esc same beep... code??

How about connect in series?

You may cut the gates on the one and drive them from the other ;-)))

Don't you have to sync the ESCs like you have to sync a solar power system to the grid if you want to connect them ? That is part of the phases games.

Not the same fases were used by the ESC’s in this setup... Redo the test but make sure that the BLHeli settings on both ESC’s are set to normal or reversed direction... Still won’t work, but maybe for a bit longer than 3 seconds...

What if.... Make it 2 flight controller father than 1. What if... Just using servo tester, without using flight controller, but also parallel the ESC in-out voltage..😁 Great experiment.

This can't work without phase synchronizing the 2 units

You can try using 3 esc with only one wire connected to the motor each...

Maybe sensored motors work better than sensorless with shunt to measure the correct position.

Interesting idea 🤓

I think, only one of two ESC's must be with microcontroller. It means you may just add mosfets from one ESC to another. Pain in a butt

Cool experiment! What about connecting 2 ESC in one straight line instead of parallel? 🤔

Connect 2 escs power in series! Wonder if the speed is gonna be divided in half.

Nonsense