Can you attach a second motor with its own power source and use the one accelerator to control both motors? I want to attach a chain motor to the front wheel but I'm thinking if possible just buy a separate battery for the motor . I hoping that you can use the same accelerator to control both motors? I'm not to concerned with the rotation of the motor. I just want to use it as a boost for longer distances. Can you do that that without blowing yourself up?
Good question, thanks! You could use a system based on two optocouplers to keep controllers voltages seperated. And control them both with one speed controller. Check out info about an optocoupler :)
thank you for the nice video. i wonder how both wheels can spin 'forward' when you connect the same phase wires for both. Becoz since they are facing each other, one is actually spinning oposite direction to the other..
Hi. Thanks for your comment! Since this is not a dc motor - the direction is actually controlled by pulses. And if 3 main wires are exactly in parallel - they will spin the same way :)
Thanks for the video... I especially appreciate the discussion it created. I'm looking forward to the finished build. I'm working on a project and need the same motors/controllers that you're using. Who did you buy them from?
i had a two controller setup which worked great, but one of the controllers crapped out. So I am taking your advice and setting 2 350 wt hub motors on 1 1000w controller. I thought that a bigger controller would reduce the chance of it burning out. the one controller means less wires and less space used on the bike then having two controllers. I will write again later on and tell you what happens
very informative experiments - the question was asked below on increasing the controller power capability but one also has to make sure he battery BMW is ok with about 2x power delivery - right?
Hello! Thanks for Your comment. I personally dont use BMS systems on my batteries, so I dont have an amp-limiter in that sence. But yeah, you should have a battery pack with appropriate amp-rating for Your device :)
In practice, only small loads would have a hope of functioning properly. The only way this would work cleanly is if the wheels were clamped together (with magnets/poles at the same angle) and always rotated exactly the same. So it could perhaps be useful if you want a single more powerful wheel.
Thanks for the comment! Really good point in theory. I was thinking the same before I did this test. But was surprised at the results. Just have to really try this out on a actual scooter next spring :) thanks for watching!
This was very good, thank you. Can you have a Master and a Slave running in opposite directions ? (i.e. switching one of the 3 phase wires on the slave)
Hello! Thanks for watching and for this very interesting question. I did not try that out, sorry. I'm not gonna say that in theory changing the position of two wires will do that, because this master-slave thing is already pretty unorthodox and I was surprise that it works well like this. It could ether work, or just create an electric brake effect on both motors. So be careful if you try that out and please post me a comment if you succeed :)
This will only work if you place 2 hub motors in the same line like on the scooter. If you apply resistance to one of the motors the phase sync if going out of control and basically one motor is pulling or stopping the other. So if you would like to use it on let's say a go cart,it will not work properly
Hi. Thanks for your comment! That's exactly what I'm examining here. And the result is yes, you can. But not on a same axle, like a go cart. You should watch the video till the end, if you haven't yet :)
Always thought that two hubs one controller and one throttle and multiple batteries was the only way to go. Hiding all wires in frame using Bluetooth connections when possible. For speedo & battery levels if posdible. UBCO is about the best I've seen up to now.
What about 72v 1500watt system , like adding a same power hub motor model n front wheel to rear hub motors controller. What will happen? Will both motor's peak power will deduct due to 2loads in controller? My controller is 72v 1500watt peak current 50A ?
Hi! Well it's the same situation, so you would need a controller of double the power. Otherwise you will overload it and eventually burn it. Or course it would work for some time first :)
hes right. it works fine. the 1000w controller doesnt get hot and the hubs only drop phase occasionally and always just when getting the bike going. and my 350w hubs are not made by the same company. does anyone know if a throttle can be split to feed two controllers?
Hello. Thanks a lot for your comment! Yes, you can hookup two controllers to one throttle. It's pretty simple, just connect them in parallel. But I advise to create a "valve" with two diodes. I show that diagram in this video, while making another eBike-project: th-cam.com/video/6TIP0e4Qdx4/w-d-xo.html Thanks again for watching!
Hello brother it's a very much learning video I have a question on this topic can we add joystick to this controller please make one on 3 way front back and rotating side through joystick it'll more helpful
Hello! Good question. That would require a separate controller on each motor. Also there needs to be a reverse switch on those controllers. Making a joystick interface and connecting it is not that hard, if you have all of those functions available. I advise you to check out general controller boards. Ebike controllers are not the best choice for that kinda project :)
still running fine. id just make sure the controller can handle both hub motors. now i am adding a setup booster to my 48v 60ah battery. im jumping the hubs to 72v
Any idea how to get one throttle running two motor? Each motor has its own controller but shares one throttle. I got it working by sharing the throttle signal wire and the positive wire (do not connect the ground wire) As soon as I turn off the power switch on either controller, one of the motor spins at full speed. Any suggestions?
Hi! Well ground is shared anyways, if they are in the same battery. So try putting diodes in the signal to prevent back voltage from a controller to other controller :)
@@3LECTROSHOCKED I got it working properly right after I commented your video. Apparently, if you are running separate batteries like I am, you must connect Ground on each battery together, then connect only the Signal wire from the throttle on both controller. Nobody mentioned the Ground wire on the batteries every video I watched lol. Thanks for getting to my comment. Thanks for making this video.
I want to use two no of 350 watt brushed dc gear motor , total 750 watts. Can I use an 800 watt brushed motor controller with a single throttle to control the motors any suggestions pls.
Hi! So you have two basic DC motors? Well that should be super easy :))) Just connect them parallel and hookup to a controller that can deliver twice the power. Shouldn't be any problem - I think :D Only thing I can think about is the slash in the resistance - but in theory that should not be a problem if your controller is powerful enough :)
Hi! Thanks for your comment! They shouldn't draw more power than combined rating, so having a controller twice as powerful should keep the system ok :)
I have 2wd scooter a xiaomi m365 and I seem to have the same type of controller. If I wanted to shut the second motor off to save battery with wire should I tap and make switch? Im thinking should it be the signal wire? I havent tried disconnecting it yet but would like to hear your input as to which wire should I make a switch out of.
Hello! Wou, that's a very good question. So if 3-phase motors are connected in parallel, then you need to disconnect two power wires out of three. That way one of the motors will spin freely and not create a conflict of resistanses between both of them. Need to remember that a motor is also a generator :) Hope this helps. Thanks for a very good question and a comment!
Hello! Wou, that's a very good question. So if 3-phase motors are connected in parallel, then you need to disconnect two power wires out of three. That way one of the motors will spin freely and not create a conflict of resistanses between both of them. Need to remember that a motor is also a generator :) Hope this helps. Thanks for a very good question and a comment!
Hi! Im sorry, I forgot to mention, I'm running two separate controllers. The phase wires are not paralleled. The display/throttle wire is the only thing on parallel. But I will try what youve mentioned since its better to put a switch on the phase wires to avoid the motor from generating electricity. :)
Oh, well actually in that case I suggest to just shut down the second controller. No resistance will be applied on that motor wires in that case. Unless there is a some kind of anti theft system to close motor power wires in a bunch to stop it from moving freely :)
Hello! Thanks for your comment. That's a very good question. You should at least separate signals with diodes to try to avoid any problems with lowering resistance and back voltage. I showed that in this video th-cam.com/video/6TIP0e4Qdx4/w-d-xo.html Hope that helps :)
If you have 2 hub motors does that mean you need a battery with double the voltage of what the motor takes? P.S. is there anyway I can get in touch with u so I can ask you multiple questions for a project im working on.
Hello! Thanks for your comment. No, not the voltage. These are connected in parallel, so you need double the amps. So bigger battery pack and twice more powerful controller. Please ask your questions here in the comments, I will try to help :) Thanks for watching!
the controller should be double capacity to support the 2 hub motors.. i tried 1 1200 watts 30amp controller on 2 450watts hub motor and it works fine.. this setup will stress the controller
Hello! Yes, that's really important in the long run, so you won't stress the controller with using it at full capacity all the time. These hubs I have here in the video are rated at about 180w each, so a 350w controller is just about ok for those :) Surely need a bigger controller if motors are bigger than 180w - there you are right! Thanks for watching!
@@3LECTROSHOCKED okay thanks, I guess I should try, i want to add a front hub motor trying to run them both on my 36v 10AH battery and same display monitor. Both motors are 36v 250W, do you think it can work?
Hello! Thanks for asking! That's a good question. How will you use those motors? Running at the same rpm or different rpm like on an actual hoverboard?
@@3LECTROSHOCKED thanks for your answer, yes I want to run with the same speed and on the same shaft, which controller should I use and where can I buy? thank you
Well in that case use two controllers with one throttle. Separate throttle inputs with diodes. This is because the difference in rpm will be too big when turning, if those wheels will be on a same axle. Using one controller definitely won't work. Hope this helps! :)
Hello. Thanks for the comment! Not yet. We have 30cm of snow right now :D But I'm thinking about it a lot. There is a big issue I'm trying to figure out - how to brake? Don't want to grind against the rubber wheel. I have been researching into electric brake, cause it's possible with bldc, but I can't find a practical solution. Any ideas?
@@3LECTROSHOCKED My chinese controller has low level e brake. It gets triggered in conjuction with the mechanical brake lever. It some times gets two powerful since i run a 2wd scooter.
Just like I thought..👍🏼😁😁... BTW, I ran 4 pcs Brushed motor only with 1 controller (PWM). But the speed & torque is decrease. Not like when I used 1 dc motor with 1 controller...
Hello! Yeah, in that normal DC config everything will be split. Resistance goes down, resulting in sucking more current from controller, which results in lowering voltage, which results in lower rotation speed. That's how I see it :) Thanks for watching! :)
Thanks for the comment! :) Can you please tell why You think that? I'd love to know, if You have any insights on this matter. Me, at this point, I don't see any reason for a major malfunction like that, if you connect only one set of sensors. Motor wires are essentially short circuited all the time inside a motor, so if the second motor put more stress - that won't actually do anything besides draw more current. And current is limited by mosfets itself. And as I said, the efficiency is something that needs to be considered here. Maybe having two sets of windings spinning at different speeds create a lot of unnecessary current draw. Although I did not noticed that when testing. I had current meter hooked up during this test. Thanks for watching and I will appreciate Your thoughts on this! :)
@@3LECTROSHOCKED on flat even grounds it's fine from my experience when using 2 350w watt motors while connected with 1 controller it had the same effect stated in this video and worked fine for about 3 months then 1 morning the bike died and when opening it up and look at the controller the capacitors n MOSFETs fried I can only guess as the controller still only sees 1 wheel not 2 the amps and voyages being drawn from the wheels running at different resistents took its toll with the controller as over time the controller has to keep voltage and current and amps regular due to seeing 1 wheel not 2. I mean you may have better luck but this was my finding using 48v 350w bike hubs and a 48v 20amp controller
Great insight! Thanks a lot! :) In this setup I had two 180w motors and controller was running at 48v. It says 350w on the controller, but it can handle 17 amps, so really it should be 800w at 48v. Maybe having more power headroom is the key? Any ways, I don't mind burning one of these small contrs. Maybe I make a scooter and report with some data in my videos. Thanks a lot for Your input on this! :)
Hello 😮 nice job. I ve got a big problem. I ve got a scooter 5600 watt dual motor. I want to connect second battery but i can't find connectors with two cables for batteries two cables for controllers 😢😢 scooter it's 5600 60volt and each battery it's 40ah
Hi! Thanks for Your message. Well, I guess you should start searching for the cables, starting from the battery. They should be there for sure :) Best I can advise at this point.
Hello! Good question. Try it out with one master (hall connected) and other slave (only power connected). Xiaomi is kinda far out with electronics on their motor vehicles, as basically all the rest of the main stream manufactures. So it is really no way of knowing how that controller computer will behave, since it's not a typical motor controller. Usually those devices are much more complicated than a regular brushless motor controller. Good luck! :)
It won't work.. the only reason it's barely working in your test is because the motor can bump forward/backward to align the phases again with the other motor.. when there is friction on the tyre and the motor can't bump itself back in to alignment with the other motor you will have constant desyncs. The reason either motor shuddered when both motor's hall sensor wires were connected was because you're sending two different signals.. the motor that you aren't putting resistance on will still be sending pulses, so the speed controller keeps doing its thing.. The speed controller doesn't know that you've stopped one motor.
Hi! Thanks for your comment! Good points. That's exactly what I was testing. The surprising result was that they kept producing torque in a slight disalignment. Need to test on a real vehicle:) maybe this summer
@@3LECTROSHOCKED There isn't such a thing as a slight misalignment.. the motor will either cog forward or backwards one full phase, or the current draw will jump through the roof. If you had this on a bike and you turned the corner, even the slightest additional distance covered by the front wheel would mean that the phases are no longer aligned and the front wheel will lock up.
Can you attach a second motor with its own power source and use the one accelerator to control both motors?
I want to attach a chain motor to the front wheel but I'm thinking if possible just buy a separate battery for the motor . I hoping that you can use the same accelerator to control both motors?
I'm not to concerned with the rotation of the motor. I just want to use it as a boost for longer distances.
Can you do that that without blowing yourself up?
Good question, thanks! You could use a system based on two optocouplers to keep controllers voltages seperated. And control them both with one speed controller. Check out info about an optocoupler :)
thank you for the nice video.
i wonder how both wheels can spin 'forward' when you connect the same phase wires for both. Becoz since they are facing each other, one is actually spinning oposite direction to the other..
Hi. Thanks for your comment! Since this is not a dc motor - the direction is actually controlled by pulses. And if 3 main wires are exactly in parallel - they will spin the same way :)
this was helpful. thank ya
Hi! Glad it was helpful!
Thanks for the video... I especially appreciate the discussion it created. I'm looking forward to the finished build. I'm working on a project and need the same motors/controllers that you're using. Who did you buy them from?
Thanks a lot for your comment! Motors are from the dumpster and controller is just a basic model from AliExpress. Thanks again for watching!
i had a two controller setup which worked great, but one of the controllers crapped out. So I am taking your advice and setting 2 350 wt hub motors on 1 1000w controller. I thought that a bigger controller would reduce the chance of it burning out. the one controller means less wires and less space used on the bike then having two controllers. I will write again later on and tell you what happens
Hello! Thanks for your comment! Sounds very interesting. Please do keep me posted on how it works with your setup. Btw, is it a scooter or a bike?
very informative experiments - the question was asked below on increasing the controller power capability but one also has to make sure he battery BMW is ok with about 2x power delivery - right?
Hello! Thanks for Your comment. I personally dont use BMS systems on my batteries, so I dont have an amp-limiter in that sence. But yeah, you should have a battery pack with appropriate amp-rating for Your device :)
In practice, only small loads would have a hope of functioning properly. The only way this would work cleanly is if the wheels were clamped together (with magnets/poles at the same angle) and always rotated exactly the same. So it could perhaps be useful if you want a single more powerful wheel.
Thanks for the comment! Really good point in theory. I was thinking the same before I did this test. But was surprised at the results. Just have to really try this out on a actual scooter next spring :) thanks for watching!
This was very good, thank you. Can you have a Master and a Slave running in opposite directions ? (i.e. switching one of the 3 phase wires on the slave)
Hello! Thanks for watching and for this very interesting question. I did not try that out, sorry. I'm not gonna say that in theory changing the position of two wires will do that, because this master-slave thing is already pretty unorthodox and I was surprise that it works well like this. It could ether work, or just create an electric brake effect on both motors. So be careful if you try that out and please post me a comment if you succeed :)
This will only work if you place 2 hub motors in the same line like on the scooter. If you apply resistance to one of the motors the phase sync if going out of control and basically one motor is pulling or stopping the other. So if you would like to use it on let's say a go cart,it will not work properly
Hi. Thanks for your comment! That's exactly what I'm examining here. And the result is yes, you can. But not on a same axle, like a go cart. You should watch the video till the end, if you haven't yet :)
These controller actually running at sensorless mode after pass certain rpm
Hi! Thanks for your comment! That's an interesting point, thanks. I can't verify that though :)
Always thought that two hubs one controller and one throttle and multiple batteries was the only way to go. Hiding all wires in frame using Bluetooth connections when possible. For speedo & battery levels if posdible. UBCO is about the best I've seen up to now.
Hi. Thanks for sharing:)
Thanks for the info..I love it.. good video
Hello! Thank you so much for your comment! :)
What about 72v 1500watt system , like adding a same power hub motor model n front wheel to rear hub motors controller. What will happen? Will both motor's peak power will deduct due to 2loads in controller? My controller is 72v 1500watt peak current 50A ?
Hi! Well it's the same situation, so you would need a controller of double the power. Otherwise you will overload it and eventually burn it. Or course it would work for some time first :)
hes right. it works fine. the 1000w controller doesnt get hot and the hubs only drop phase occasionally and always just when getting the bike going. and my 350w hubs are not made by the same company. does anyone know if a throttle can be split to feed two controllers?
Hello. Thanks a lot for your comment! Yes, you can hookup two controllers to one throttle. It's pretty simple, just connect them in parallel. But I advise to create a "valve" with two diodes. I show that diagram in this video, while making another eBike-project: th-cam.com/video/6TIP0e4Qdx4/w-d-xo.html Thanks again for watching!
Hello brother it's a very much learning video I have a question on this topic can we add joystick to this controller please make one on 3 way front back and rotating side through joystick it'll more helpful
Hello! Good question. That would require a separate controller on each motor. Also there needs to be a reverse switch on those controllers. Making a joystick interface and connecting it is not that hard, if you have all of those functions available. I advise you to check out general controller boards. Ebike controllers are not the best choice for that kinda project :)
@@3LECTROSHOCKED can you make one video on this topic of 3 way drive front back and side ways
Sorry, I don't have any use for that now. Maybe in the future :)
Nice !!!
Can 4 hub motors work with a single controller or is a special controller needed ?
Hi. Thanks for your comment! Why not, but you will have problems while turning your 4-wheel vehicle :) I assume that is what you want to build.
@@3LECTROSHOCKED that's right, i plan to build a mini utv in the near future
Yeah, too much radius if on a same axle:(
still running fine. id just make sure the controller can handle both hub motors. now i am adding a setup booster to my 48v 60ah battery. im jumping the hubs to 72v
Great! Sounds awesome! We still have a lot of snow on the ground, so I haven't had a chance to build anything yet to actually try this out.
@@3LECTROSHOCKED Please update us when you do, i am very interested in a full wheel drive electric bike.
Of course!
Hi, where did you get those brackets from that you placed the hubs into?
Hi! Those are from the front end of escooters :)
Any idea how to get one throttle running two motor? Each motor has its own controller but shares one throttle. I got it working by sharing the throttle signal wire and the positive wire (do not connect the ground wire)
As soon as I turn off the power switch on either controller, one of the motor spins at full speed. Any suggestions?
Hi! Well ground is shared anyways, if they are in the same battery. So try putting diodes in the signal to prevent back voltage from a controller to other controller :)
@@3LECTROSHOCKED I got it working properly right after I commented your video. Apparently, if you are running separate batteries like I am, you must connect Ground on each battery together, then connect only the Signal wire from the throttle on both controller. Nobody mentioned the Ground wire on the batteries every video I watched lol. Thanks for getting to my comment. Thanks for making this video.
Oh, great that I could help! :)
can u do a step booster video about it increasing an ebikes speed. the ones on youtube are vague, id like something more difinitive
Hi! What do you mean by "booster"? There are no such thing - you can only limit the power.
I want to use two no of 350 watt brushed dc gear motor , total 750 watts. Can I use an 800 watt brushed motor controller with a single throttle to control the motors any suggestions pls.
Hi! So you have two basic DC motors? Well that should be super easy :))) Just connect them parallel and hookup to a controller that can deliver twice the power. Shouldn't be any problem - I think :D Only thing I can think about is the slash in the resistance - but in theory that should not be a problem if your controller is powerful enough :)
But does connecting two motors overload the controller?
Hi! Thanks for your comment! They shouldn't draw more power than combined rating, so having a controller twice as powerful should keep the system ok :)
I have 2wd scooter a xiaomi m365 and I seem to have the same type of controller. If I wanted to shut the second motor off to save battery with wire should I tap and make switch? Im thinking should it be the signal wire? I havent tried disconnecting it yet but would like to hear your input as to which wire should I make a switch out of.
Hello! Wou, that's a very good question. So if 3-phase motors are connected in parallel, then you need to disconnect two power wires out of three. That way one of the motors will spin freely and not create a conflict of resistanses between both of them. Need to remember that a motor is also a generator :) Hope this helps. Thanks for a very good question and a comment!
Hello! Wou, that's a very good question. So if 3-phase motors are connected in parallel, then you need to disconnect two power wires out of three. That way one of the motors will spin freely and not create a conflict of resistanses between both of them. Need to remember that a motor is also a generator :) Hope this helps. Thanks for a very good question and a comment!
Hi! Im sorry, I forgot to mention, I'm running two separate controllers. The phase wires are not paralleled. The display/throttle wire is the only thing on parallel. But I will try what youve mentioned since its better to put a switch on the phase wires to avoid the motor from generating electricity. :)
Oh, well actually in that case I suggest to just shut down the second controller. No resistance will be applied on that motor wires in that case. Unless there is a some kind of anti theft system to close motor power wires in a bunch to stop it from moving freely :)
Sir how about 2hub motots 2 controler but only one throttle how to wire it should ii connect parallel?
Hello! Thanks for your comment. That's a very good question. You should at least separate signals with diodes to try to avoid any problems with lowering resistance and back voltage. I showed that in this video th-cam.com/video/6TIP0e4Qdx4/w-d-xo.html Hope that helps :)
Very good vid. When turning it's best to accelerate into it. Vehicle is more stable in the turn. See you again soon.
Thank you.
Hi! Thanks for your comment! :D Good tip! Full throttle on!
If you have 2 hub motors does that mean you need a battery with double the voltage of what the motor takes?
P.S. is there anyway I can get in touch with u so I can ask you multiple questions for a project im working on.
Hello! Thanks for your comment. No, not the voltage. These are connected in parallel, so you need double the amps. So bigger battery pack and twice more powerful controller. Please ask your questions here in the comments, I will try to help :) Thanks for watching!
the controller should be double capacity to support the 2 hub motors.. i tried 1 1200 watts 30amp controller on 2 450watts hub motor and it works fine.. this setup will stress the controller
Hello! Yes, that's really important in the long run, so you won't stress the controller with using it at full capacity all the time. These hubs I have here in the video are rated at about 180w each, so a 350w controller is just about ok for those :) Surely need a bigger controller if motors are bigger than 180w - there you are right! Thanks for watching!
I have the same thought.
Do you have a motor specifications?
Hi. Sorry don't remember anymore. I think I said it in the video:)
Anyone know where I can get a 40mm hub motor?
Hi! Check amazon or aliexpress :)
In London U.K. there is someone who can build in my G2pro another hub motor?
Hi. Maybe you should check out some local forums etc
Did you use one battery too?
Hi! Yeah, one controller - one battery - one throttle.
@@3LECTROSHOCKED okay thanks, I guess I should try, i want to add a front hub motor trying to run them both on my 36v 10AH battery and same display monitor.
Both motors are 36v 250W, do you think it can work?
You need a controller of twice the power, so probably no :(
@@3LECTROSHOCKED okay thanks I will go with your recommendation. I appreciate your time...
@@3LECTROSHOCKED , one more question, will 2 separate controllers work on 1 36v, right?
Thanks for sharing
Please make a 4wd project
Hi! Thanks for your comment! Yeah, maybe in the future:)
hi, i want to control two hoverboard motor, which controller should i use, thank you?
Hello! Thanks for asking! That's a good question. How will you use those motors? Running at the same rpm or different rpm like on an actual hoverboard?
Would those wheels be on one axle?
@@3LECTROSHOCKED thanks for your answer, yes I want to run with the same speed and on the same shaft,
which controller should I use and where can I buy? thank you
Well in that case use two controllers with one throttle. Separate throttle inputs with diodes. This is because the difference in rpm will be too big when turning, if those wheels will be on a same axle. Using one controller definitely won't work. Hope this helps! :)
yes you can but they dont have the same power output, so its not recommended as you may burn the other motor
Yeah, You'r right! This was nearly an experement :)
So did you ever build it ??? Results ??
Hello. Thanks for the comment! Not yet. We have 30cm of snow right now :D But I'm thinking about it a lot. There is a big issue I'm trying to figure out - how to brake? Don't want to grind against the rubber wheel. I have been researching into electric brake, cause it's possible with bldc, but I can't find a practical solution. Any ideas?
@@3LECTROSHOCKED My chinese controller has low level e brake. It gets triggered in conjuction with the mechanical brake lever. It some times gets two powerful since i run a 2wd scooter.
Just like I thought..👍🏼😁😁... BTW, I ran 4 pcs Brushed motor only with 1 controller (PWM). But the speed & torque is decrease. Not like when I used 1 dc motor with 1 controller...
Hello! Yeah, in that normal DC config everything will be split. Resistance goes down, resulting in sucking more current from controller, which results in lowering voltage, which results in lower rotation speed. That's how I see it :) Thanks for watching! :)
The controller will burn out after a while lol
Thanks for the comment! :) Can you please tell why You think that? I'd love to know, if You have any insights on this matter. Me, at this point, I don't see any reason for a major malfunction like that, if you connect only one set of sensors. Motor wires are essentially short circuited all the time inside a motor, so if the second motor put more stress - that won't actually do anything besides draw more current. And current is limited by mosfets itself. And as I said, the efficiency is something that needs to be considered here. Maybe having two sets of windings spinning at different speeds create a lot of unnecessary current draw. Although I did not noticed that when testing. I had current meter hooked up during this test. Thanks for watching and I will appreciate Your thoughts on this! :)
@@3LECTROSHOCKED on flat even grounds it's fine from my experience when using 2 350w watt motors while connected with 1 controller it had the same effect stated in this video and worked fine for about 3 months then 1 morning the bike died and when opening it up and look at the controller the capacitors n MOSFETs fried I can only guess as the controller still only sees 1 wheel not 2 the amps and voyages being drawn from the wheels running at different resistents took its toll with the controller as over time the controller has to keep voltage and current and amps regular due to seeing 1 wheel not 2.
I mean you may have better luck but this was my finding using 48v 350w bike hubs and a 48v 20amp controller
@@3LECTROSHOCKED I would strongly suggest repeat the experiment but this time add weight eg sit on it and move about lol
Great insight! Thanks a lot! :) In this setup I had two 180w motors and controller was running at 48v. It says 350w on the controller, but it can handle 17 amps, so really it should be 800w at 48v. Maybe having more power headroom is the key? Any ways, I don't mind burning one of these small contrs. Maybe I make a scooter and report with some data in my videos. Thanks a lot for Your input on this! :)
Wou, thanks for the info! I should look into that.
Hello 😮 nice job. I ve got a big problem. I ve got a scooter 5600 watt dual motor. I want to connect second battery but i can't find connectors with two cables for batteries two cables for controllers 😢😢 scooter it's 5600 60volt and each battery it's 40ah
Hi! Thanks for Your message. Well, I guess you should start searching for the cables, starting from the battery. They should be there for sure :) Best I can advise at this point.
i think that you must to probe in the road this sistem for a week to be very sure!
Hello! Yes, you are right, this setup needs some field testing. Maybe next summer :) Thanks for watching!
So now i can just put 2 motors on my xiaomi scooter?
Hello! Good question. Try it out with one master (hall connected) and other slave (only power connected). Xiaomi is kinda far out with electronics on their motor vehicles, as basically all the rest of the main stream manufactures. So it is really no way of knowing how that controller computer will behave, since it's not a typical motor controller. Usually those devices are much more complicated than a regular brushless motor controller. Good luck! :)
And of course there will be a problem with power. You need twice more powerful controller to drive two motors, so I guess sorry, that won't work :(
@@3LECTROSHOCKED but do you now i can put 2 motors on my xiaomi scooter
Sorry but is this a question?
@@3LECTROSHOCKED yes, sorry if i say it wrong becous i'm dutch and my age is 11
It won't work.. the only reason it's barely working in your test is because the motor can bump forward/backward to align the phases again with the other motor.. when there is friction on the tyre and the motor can't bump itself back in to alignment with the other motor you will have constant desyncs.
The reason either motor shuddered when both motor's hall sensor wires were connected was because you're sending two different signals.. the motor that you aren't putting resistance on will still be sending pulses, so the speed controller keeps doing its thing.. The speed controller doesn't know that you've stopped one motor.
Hi! Thanks for your comment! Good points. That's exactly what I was testing. The surprising result was that they kept producing torque in a slight disalignment. Need to test on a real vehicle:) maybe this summer
@@3LECTROSHOCKED There isn't such a thing as a slight misalignment.. the motor will either cog forward or backwards one full phase, or the current draw will jump through the roof.
If you had this on a bike and you turned the corner, even the slightest additional distance covered by the front wheel would mean that the phases are no longer aligned and the front wheel will lock up.
Yeah, thanks for your comment! :)
SLAVE MOTOR?
Yeah, master and slave. Like in any cluster config :)
Aku nggak ngerti blas.
Hi. Sorry, I don't understand :)
@@3LECTROSHOCKED l from jawa indo...