Brushless DC & AC Induction motors > 15 HP

[Deepkimchi]

I keep toying with the idea of converting a car to electric, but cannot find sources for larger brushless DC motors or AC induction motors.

From different sites I'm finding to get a 4 seater car cruising at 60 mph you need continuous 15-25 HP, depending on drag coefficient of the car.

Most sites list the Warp motors, ADC, etc - but these are all BRUSHed motors.

PML Flightlink has a nice brushless hub motor - but they don't sell to individuals.

Where are those 15-25 HP and up brushless motors? :|

 

[slayer]

Yes i understand you and probably a lot of guys here would like that too i wrote to http://www.tm4.com/fra/tm4transport/moto_moteurroue/ and the same answer they don t sell to individual...

I wonder if some of the guys here know Kenny enough to put the idea of making a whole system like he did for the bike but now for cars ...a x9904 or something that would fit in a 4 or 5 bolts pattern kind.... that would be almost as easy as a bike and he would selll them like hotcake....it would be kool .

 

[fechter]

Yes, there doesn't seem to be much available in that range.

If you have tons of money, go for one of these: http://www.acpropulsion.com/technology/gen2.htm

I don't know how much they cost, but I'm sure it's not cheap.

I have occasionally seen large VFD drives for induction motors on eBay for cheap (search eBay for "VFD"). One of these could possibly be converted to DC input. An induction motor that's rated for 10hp at 60hz will produce way more than that at higher frequency.
A VFD unit that is made for 200-240vac input would probably work with a DC input in the same range if the logic circuits were driven separately. Some of them are 120vac input.

Something like this: http://cgi.ebay.com/15-hp-VFD-Varia...ryZ71393QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
More here: http://stores.ebay.com/driveswarehouse
Bunch of smaller ones, including sensorless vector drive units:
http://search.stores.ebay.com/PEO-D...53252336QQsspagenameZSTOREQ3aPROMOBOXQ3aLINKS

 

[Chris]

What about taking a Mars PMAC for each driven wheel? No differential necessary then. Rated power would be 2 x 4.5 kW = 9 kW = 12 hp (with solid potential to tease out more).

 

[fitek]

Check out electricmotorsport.com in Oakland California.

Here's a link to their AC motor kits up to 46hp (they've got the controllers too)
http://www.electricmotorsport.com/store/ems_ev_parts_motors_ac-induction.php

Not cheap, but far cheaper than anything else I've seen.

The AC propulsion kit is super expensive. Think > $10k...

 

[Deepkimchi]

These seem like great motors - but as usual they are making secret deals with auto manufacturers

http://www.autobloggreen.com/2006/10/20/raser-to-show-off-a-new-electric-motor-at-evs-22/

 

[JRP3]

http://www.metricmind.com/index1.htm

They sell AC motors. There's another site that slips my mind at the moment.....I'll post it if it comes to me.

 

[Deepkimchi]

Thanks. They have a large selection for sure.

Also very interesting was their battery BMS systems - had a good narrative and circuit board pictures.

 

[blackstangt]

What about taking a Mars PMAC for each driven wheel? No differential necessary then. Rated power would be 2 x 4.5 kW = 9 kW = 12 hp (with solid potential to tease out more).

That could cause some problems, but putting them both on one wheel is no harder than one motor. Think serpantine belt on a piston engine... Gearing to reduce RPM if necessary.

I actually thought about an electric motorcycle with two brushless, but it's not necessary.

Stacked Mars Brushless motors could potentially make the power necessary, like more cylinders in a car.