E-Drift trike motor. (Help me decide)

rlynd3

rlynd3

1 mW
Joined
Nov 29, 2018
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14
Working on my first rideable e-build (Plenty of RC planes, cars from scratch) and would like some advice on my Drift Trike project...

6M9W6lI_d.jpg


I've done way too much research and have talked my self in circles on the motor choice and "needed" power range. I don't need crazy speed like 100kmh (40-50kmh is more my goal) but I do want to take the PVC off the and race around like a go kart from time to time.

So I figure I need between 1.5kw/2kw continuous with 3-5kw peak given that I've built some fun go karts in the past with 5hp b&s motors. So peak of 5hp seems reasonable. I also love in a pretty hilly area so need some decent torque to get back home. Oh and would prefer to keep the motor under $200.

Here are my motor choices (so far)

1. Golden Motor 1500w BLDC-108
https://www.goldenmotor.com/frame-bldcmotor.htm(scroll down)

2. Volcano motor 3kw
http://www.volcanomotor.com/products/3kw_48v_bldc_motor-en.html

3. Some Giant outrunner like this https://app.alibaba.com/dynamiclink...share_detail&ck=share_detail&shareScene=buyer

4. Jenvos 2kw
https://app.alibaba.com/dynamiclink...share_detail&ck=share_detail&shareScene=buyer

5. QS 2000w (or 1000w?)
https://s.click.aliexpress.com/e/1d3SY4C

6. Kun Ray 2000w MY1020
https://s.click.aliexpress.com/e/bhSC3Eu0 (these just seem cheaper, anyone use and like them? They're very inexpensive...)

Your thoughts? Does this power range seem reasonable? Any experience with these motors? Any other motor suggestions?

Cheers!
 
Thanks for the reply. I saw that mobility trike and it's awesome :)

I had considered a Hub motor and it would certainly be a bit easier but I'm more interested in pushing the trike for powered drifts rather than pulling. Like this one https://youtu.be/EjDEZVBTTXQ

The other part is I would like to keep the pedals so that it's technically an e-bike and I can ride it on the street. :mrgreen:

I think what I'm coming to realize is that these motors can be pushed a little beyond there ratings. So I should over spec the batteries and controller?

Space is tight so I'm planning a 15s5p 30q pack with a Kelly 80a controller http://kellycontroller.com/kbs48151e80a24-48v-mini-brushless-dc-controller-p-1305.html
 
Then I would go with this motor and controller set if you want to stay under $200:
https://www.aliexpress.com/item/Ele...lgo_pvid=c8f12ce3-abf9-4ac8-a3ff-4c5bf0b1a8f2

But for more power (yes you want that... :wink: ) order this one:
https://www.aliexpress.com/store/pr...l?spm=2114.12010612.8148356.10.73e821acJKwV4x

Although I wonder if the price of the 2000W kit is correct and/or includes the controller. The 3000W kit including the controller is a really good deal. You can always perform a shunt mod and add cooling if you want even more power. But if you gear it low enough the power will be plenty enough for serious drift fun!
Here's some info on the 2000W version:
https://endless-sphere.com/forums/viewtopic.php?t=78486
 
Awesome thanks! Though the 2k is a great price but it will be hard to not go with the 3k one... :)

That thread has some really good info and answers my questions about these can motors vs the RC outrunners that was a little confusing...
 
No idea. You can ask the supplier who the manufacturer is but even then it's the question if the product that gets delivered is what they say it is. It's always an adventure if you order from China... :wink:
 
FWIW, if you go dual rear hubmotors, with independent torque (current) throttles and independent proportional regen/eabs braking on each, you could have even more fun with it.

My SB Cruiser trike's present tires have too much grip to drift (except on loose surfaces) with the weight it has now, but when it was lighter and I was using bicycle tires, I could drift it controllably and easily, if I wanted to, and could get out of a drift with the right cmbination of motor power on one or both sides, and/or mechanical braking on the front or regen+eabs on the rear. (I didn't have independent l/r braking on the rear; still don't, but would've made it even more controllable).

Independent reversing would also be nifty, but you'd have to test your controllers to see if they can change directions without coming to a complete stop first--some can, some can't. (most can't).

Using hubmotors on teh rear would be tougher than chain or belt driving those small wide wheels, but it's not impossible, depending on how small you need the wheels to be, and what kind of tires (if any) you're using on them (some drift trikes I've seen only have plastic large-diameter tubes on the wheels, so they have little traction and are super easy to drift)


Either way, if you're only using the high power in short infrequent bursts, you can probably triple the power input a motor is "rated" for. If they'll be frrequent longer bursts, maybe double.

If you use non-hubmotors, then don't put a freewheel or clutch between the mtoor and the wheel, and you can then still use regen / eabs, and you can also use reverse.
 
Hey rlynd3, have you seen the fiik drifter? Very nice low design with two 1000w bldc motors belt driven to each rear wheel.

It gets your bum right on the road and no go kart style axle required. Only thing is having to double up on controllers I spose.

I'm weighing up that style of build with a single chain drive axle with QS 3000w @ 72v with 20s4or maybe 5p 30q.

Keen to see your project mate, keep hacking
 
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