electric bike 3 phase bldc hub motor controller home build open source project part #1 prototype

[0wn3dwill]

Great Job! Would it be possible to look at your schematics please or at least where you based your design from? :)

[speed2010andspeed]

yehh

[kirill98]

so it comes with pedals? are they any useful?

[nubbynubs123]

sounds like a bong in the background at about 2:17 :o lol!

nice vid

[jlucasound]

Awesome! Thanks for sharing this. I am fascinated with electronics. I used to work for iRobot building the B21R (now obsolete). I designed the wiring harness when they went to rflex. I am an amateur at best at pcb component level, but I learned a lot at this job. Mechanical and electrical were my area. Thanks again!

[X2YeZCAMCNC]

you are welcome

[fishcake1235]

cool vid thanks

[X2YeZCAMCNC]

thanks

[jpmorgan187]

Why is the word "danger" showing up as a mirror image? Was that a mistake?

Are those chemicals toxic?

[X2YeZCAMCNC]

I designed the board layout that way so the word "DANGER" would be seen from component side of board. The chemicals are standard PC board making products sold by MG Chemicals...ferric chloride is also used at water treatment plants to clean water

[Spencerian]

Nice Job. :)

[dmgcat]

A real artisan....very nice . Can't go wrong with Def Leppard either.

[X2YeZCAMCNC]

Thank you

[Crio2c5]

what are the mosfet transistors that you are using ? thanks :)

[X2YeZCAMCNC]

n channel mosfet (metal oxide semiconductor field effect transistor)

[ChrisLuxembourg]

Good idea, excellent work & a nice video!

My idea, I wanna fix the MosFETs on a tunnel heat sink. The MosFETs are getting very hot and so I can use it to warm up my cockpit in winter, in summer I'll blow it outside. Take a look in "LOWRACER HYBRID"..... Thanks, Chris

[X2YeZCAMCNC]

great idea

[siddallservices]

Def Leopard cool

[Galilee1986]

do you think is possible to go faster with the same motor and battery with a 36volt motor ?

[X2YeZCAMCNC]

The controller that can with the bike will limit your speed to 32Km/h. This controller doesn't limit the speed. On my bike the controller responds to 0-3.5V from throttle. The throttle hall effect sensor outputs 0-5V. At 0.95Km/V rating you can do the math with a 48V source. (48 x 0.95) equals ???

[X2YeZCAMCNC]

48V 21AH batteries that should read...sorry

[mdivinc]

I knew what you ment, nice work

[X2YeZCAMCNC]

The prototype was designed and tested on 48V motors with 21A batteries. The FET's I used are rated 75V 80A each and are paired in parallel. They have an on resistance of 0.0095 ohms each now divide by two to get on resistance in parallel. Pretty low. There is not really a limit on the current but the low battery cut off is important. If you have ever tried to built one of these you will know what I mean. Anyway you could put in larger caps and 4110 mosfet and have a ball. Have fun.

[mdivinc]

What kind of amps can it pull? Also what voltage,12,24 or 36vdc? Thanks

[X2YeZCAMCNC]

24 to 72V at 100-150A I figure as is but that depends on how close you want to run everything near max. You could just put in MOSFETs with higher rating and all that would change.

[Odziz]

Neat!

[X2YeZCAMCNC]

Thanks