First spinnup

[skullin67]

what we really need to know is how much horse power is it

[coolestdude80]

noisy for electric

[bestlocksmith]

THE MOTOR NEED'S TO BE BIGER - PAT FORD*

[mptrax]

a cool hub motor (in wheels) will be better.

[pandabuba1001]

@mptrax wrong....

[mptrax]

explain me man :) explain also why a GEAR BOX for an electric engine please. Thank you.

[lilililillijhjkf]

@mptrax hey dick wipe there is no gearbox on the screen

[ibleed1]

@lilililillijhjkf hey arsewipe. What do you think that is connected to the motor? Thats right, its a freakin GEARBOX.

[htomerif]

@ibleed1 dumbass, thats clearly not a gearbox, thats the ice cream maker.

[mptrax]

@lilililillijhjkf sure Einstein, in this case.... why to use all this shit ? LOLLL ! can't you find something better ?

[htomerif]

@mptrax Gladly. Theres more than likely a GEAR BOX because most electric motors have a pretty narrow power band. The torque drops way off if it goes too slow or too fast.

[mptrax]

@htomerif Sure ! Typically electric engines from Wheelchairs !!! Serious El. engines for traction can run from 0 to 12-16K RPM with a stable torque. Electric engine with V.F. (Variable Flux) can turn 30K or more rpm with less torque but using VERY LOW ENERGY. Check BMW project for i3 or i8. El engine have narrow power band ??? Really ? Are You sure ? Diesel engines have 1,800 rpm and gas engine has 3.400 or less. Electric has the WHOLE band of RPM. Gear box is totally useless here.

[htomerif]

@mptrax I couldn't tell especially what kind of engine this was. It looks like a golf cart motor. From the electrical setup it certainly seems to be something similar. The back EMF on these things limits their top speed. If this was a fancy AC servomotor you might be right, but it's not. It's probably a simple DC brush motor. I'm pretty sure the slower it spins, the less efficient it is as well. This is the best you can do on a limited budget and technical capability.

[mptrax]

@htomerif No right ! This kind of engine turn at 3K rpm DC permanente mag. type. Efficiency is 83 % (!!!!) but with all this stuff He looses the most part of its advantages. Better was to make it spinning the final stage of the transmission. bye

[fcguy7]

@htomerif far from a golf cart motor. I live in a town where 70% of households own a golf cart and I have personally worked at a golf cart shop while I was in my teens. Golf cart motors are usually only 3hp and are a fraction of what you see in this video.

[takhele1]

@fcguy7 what city and country do u live at??

[fcguy7]

@takhele1 Peachtree City, Georgia, USA

[fcguy7]

@htomerif **** fraction of the size. 

[mptrax]

nice but... gearbox ? why? it's unuseful with a cool motor !

[KLowD9x]

Looks like an Advanced DC unit.

[sickasso72]

Its cool but very parasitic. You need inwheel motors!!!

[otoakki]

@sickasso72 In wheel motors are good but a tranny would help lower the stress on the motor when climbing or offroading. The lower you can maintain the amp, the more mileage you can get

[bulletman100]

@thePANGvideos AC motors switch polarity, not DC, 1000x a second. Drag racing? never mentioned it. I DID say climbing, btw. Being a professional youtube poster has you throwing you expertise out there so much you are getting your posts cunfused. I DID say one gear. I didnt have time to write 10.000 words so you will know i have built 3 e- cars and 2 motorcycles and countless other projects. I just assumd you would assume you dont know everything about everyone. i assumd wrong. BYE NOW!

[bulletman100]

@thePANGvideos he does have some energy waste by using the gearbox due to friction and heat. but there is the convienence factor of having a ready-made reverse without having to switch the polarity every time, plus lower apm draw on the batteries on hills or pulling a load from a dead stop. Plus the cool and fun factor of changing gears in an almost completely quiet car. Its probably fun to drive that way.

[peggus2]

@thePANGvideos

There is a reason the Tesla can get away with a seventy pound motor the size of a water melon, it spins at very high speed, Power = Speed x Torque, the gearbox is what enables this. But, I'm sure the engineers at Tesla has no clue what they are doing....

In short, there is no free lunch!

[peggus2]

@thePANGvideos

cooling continued:

Operating the motor in the low RPM high current region also makes it less efficient, you can compensate somewhat by using more copper and exotic materials but you're limited by the envelope of the wheel and more copper means more weight.

[peggus2]

@thePANGvideos

cooling:

Since wheel motors operate at low speed they need to be very high torque, high torque means high sustained current density, which mean lots of heat, P=I^2R. Getting that heat out of a motor with spinning hermetically sealed outer shell is no trivial task. Motors that run hot live a short and hard life, insulation MTBF is cut in half for every ten degrees temp rise.

[peggus2]

@thePANGvideos

Shock:

Electric motors don't much like vibration and shock, it is bad on the winding, magnets, laminations and bearings. Obviously putting them in the wheels is the worst thing you can do in this regard.

Enviromental exposure:

Similar to shock, the wheel motors need to be hermetically sealed to prevent water and dust ingress which will destroy a motor in short order. This makes the next issue really tricky.

[peggus2]

@thePANGvideos

Unsprung mass continued:

....This is the biggest show stopper of all, you'll see wheel motors on bicycles and solar competition cars because they don't really have suspension anyway. You'll also find them on really heavy vehicles like busses where the sprung weight and is so great that the added weight of the wheel motor doesn't matter much.

[peggus2]

@thePANGvideos

There are a number of engineering challenges to putting motors in the wheels, I'll address a few of the major ones here.

Unsprung mass:

By putting the motor in the wheel you add significant unsprung mass to the dynamics of the vehicle suspension, the motor can double, or worse, the weight of the wheel. This means that when you go over a bump your wheels loose contact with the ground for much longer making the vehicle uncontrollable.

[peggus2]

@thePANGvideos

Thanks for proving my point, if you're building an EV would you go with a choice of component that you cannot buy unless you're auto manufacturer? There is more to good design then the engineering aspect alone, a design that results in no EV being built is poor design.

[peggus2]

@thePANGvideos

As for the engineering aspect of wheel motors..

You will not see in wheel motors in any production car for the forseeable future because putting the motor in the wheel is actually a really bad idea for a number of engineering reasons. Yes it is one of those things that look really great at first look, and attracts a lot of investors with more money than engineering savvy.

[sirhcskoorb]

@thePANGvideos There will have to be a step by step transition.

It will start by converting existing equipment then fazing out the unnecessary parts until ll thats left is the ideal system.

[peggus2]

@thePANGvideos

Great, so where can I buy some and how much do they cost?

[sirhcskoorb]

@thePANGvideos Maybe one day but this system can be adapted to any car on the market today.

There is no faster or more efficient way to get a electrically powers car on the road than to use what we already have.

[peggus2]

@thePANGvideos

Light weight in wheel motors are made out of unobtainium, and so might as well not exist. I would call that a pretty poor design choice.

Transmission does not prevent regen by the way.

[NeeKroVal]

shift errr shift errr

[alphaindustrypak]

alphaindustry@

[mbunds]

Very nice, clean job. What kind of DC motor?

[ionsunteu]

noisy

[jonnyasprin]

looks like the start of something good

[Adideva01]

What kind of electric motor is this!

[TehErrorOfDoom]

lol rc car motor on steroids

[lcalarea47]

hi whats the tranny out of ??? thx lonnie

[retaessa]

nice!!! keep those vids coming!!!!!!

[phxfreddy]

ouch.....the power loss in that tranny

[claviz13]

Clearly you don't know what your talking about. LOL!

[TWHELIMAG]

would you provide the motor information as well as the info of the little blck box in the front (on off switch)? would appreciate the info very much

[Dennis5587]

the black box was just a relay to safely start the motor...

[cant7think7clearly]

What's interesting is that most of that noise is coming from the gears inside the gearbox. By itself those motors are quiet. I'd never noticed how noisy gearboxes are until I'd driven my own electric car.

[halo7]

sweet

[imacrazydude9999999]

who machined the adaptor plate?

[peggus2]

I did.

There's a drawing of it at electric-lemon(dot)com, however you'll need to cut of the lower 1/4 of the plate or it interferes with the steering linkage. It's pretty well detailed on the blog.

-Peter

[Dilekz]

Shame that there is so many losses in that transmission.. but its the easiest way to hook up the electric motor. =)

[ManRayDali]

The tranny also helps to keep the amps down when climbing hills.

[FreeEnergyNow1]

It will also climp the hills at a slower speed too. No free lunch here, just a waste of energy!

[jmoyet]

wow that motor has a lot of torque!