Search found 21 matches

by Madmax
Tue, 07 Jun 2016, 22:39
Forum: Scooters, mopeds and electric toys
Topic: Electric dirt kart build
Replies: 5
Views: 1982

Electric dirt kart build

Eca.pdf

schematic done and components purchased....!

I'm still waiting on M17 Intercontec motor power connectors from Deutschland...
by Madmax
Mon, 30 May 2016, 20:32
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Maybe a decent DIY charger...?
by Madmax
Sat, 28 May 2016, 00:45
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

I have a couple of these..... The hearts of 30kw inverters http://i90.photobucket.com/albums/k248/ohospaghettio/Mobile%20Uploads/6BEC3FFC-E267-4C0C-B8FE-45B30E8D3970_zpsipgf54a3.jpg http://i90.photobucket.com/albums/k248/ohospaghettio/Mobile%20Uploads/E7D094B9-9D14-45F5-9F22-0A94BE2ADC22_zpszqwrgjst...
by Madmax
Fri, 27 May 2016, 18:42
Forum: Scooters, mopeds and electric toys
Topic: Electric dirt kart build
Replies: 5
Views: 1982

Electric dirt kart build

The loom will comprise of a relay and fuse box for ~48V motor power, and an controls box with reverse switch and connection for throttle. THe motor logic requires a separate 24v supply @~70mA which will be from a separate smaller 18650 pack. This pack will supply power to the motor logic, power rela...
by Madmax
Fri, 27 May 2016, 17:15
Forum: Scooters, mopeds and electric toys
Topic: Electric dirt kart build
Replies: 5
Views: 1982

Electric dirt kart build

http://i90.photobucket.com/albums/k248/ohospaghettio/Mobile%20Uploads/62A2CC7A-5ADF-496E-9B09-D873E08F823C_zps9th4fayo.jpg http://i90.photobucket.com/albums/k248/ohospaghettio/Mobile%20Uploads/72A3F4F7-0E67-4D14-A746-8DF1A211C86E_zpspokxbauf.jpg http://i90.photobucket.com/albums/k248/ohospaghettio/...
by Madmax
Fri, 27 May 2016, 15:52
Forum: Scooters, mopeds and electric toys
Topic: Electric dirt kart build
Replies: 5
Views: 1982

Electric dirt kart build

Hello ev fans, I'm cutting my teeth on an ev build that is for my kids to use on our farm. Sofar i think i have the motors and battery sorted but have nothing in the way of loom, drivetrain or chassis..... Motors are a pair of Dunkermotoren BG75x50 which are rated at 400W continuous, with a peak of ...
by Madmax
Thu, 26 May 2016, 16:10
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Big thanks to everyone for showing such interest in my potential ev project!

Is there such thing as a 132L frame?

What are the options with controllers for 132 and 160 frame rewound ac motors?
by Madmax
Wed, 25 May 2016, 13:30
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

The direct drive idea has been replaced with a mid mount motor close coupled to the gearbox idea. I am not sure exactly how this would work mechanically, whether a short drive shaft with a pair of flexible couplings is required to minimise radial loads on the motor/clutch shaft or if a single flexib...
by Madmax
Tue, 24 May 2016, 21:07
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Yeah, at ~$15K plus a decent battery and install I might as well just save up for a Model 3.... But that comes with a whole lot of stuff I dont want...! Am I right that it seems an industrial motor of acceptable size/mass can have acceptable/great torque but is limited in speed range? In terms of pe...
by Madmax
Tue, 24 May 2016, 01:14
Forum: Electric motors and controllers
Topic: 0-10v throttle
Replies: 4
Views: 1827

0-10v throttle

0-5V should also work (simply config the controller).

Richo, yes its for an industrial controller... I have a couple of Dunkermotoren BG75x50PI motors which have integral controllers that I'm testing for a project.


by Madmax
Mon, 23 May 2016, 16:51
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

I dont think it would be a good outcome to do a direct drive in this case.... I've come to my senses...! Instead a motor coupled directly to the transaxle and mounted toward the rear of the transmission tunnel could work. This would allow for battery mass to be distributed toward the front of the ca...
by Madmax
Mon, 23 May 2016, 05:19
Forum: Electric motors and controllers
Topic: 0-10v throttle
Replies: 4
Views: 1827

0-10v throttle

Hi all,

where/what is a good source for a 0-10v throttle?

cheers!
by Madmax
Fri, 20 May 2016, 00:44
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Would a 160 frame 15kw 4 pole motor be suitable for a rewind for this application?
by Madmax
Thu, 19 May 2016, 19:45
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Another option is to wait for a Tesla 3... A fair bit of the Alfa ICE torque is not available to accelerate the car as the drive train has a bit more inertia than a standard front engine rear wheel drive arrangement, due to the clutch at the back. This is very noticeable in first gear... So a direct...
by Madmax
Wed, 18 May 2016, 20:56
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

I've just calculated starting torque based on incline for 1100kg vehicle and the torque requirement is somewhat less... around 100NM at motor shaft with a 4:1 final drive to hold a car on a 15 degree (27% grade) slope... To match stock 0-100 average accleration of ~3m/s/s acceleration torque is abou...
by Madmax
Wed, 18 May 2016, 20:40
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Hi Johny, Yep, With the original motor producing 180NM with 1.72:1 2nd gear torque to the final drive is ~300NM I really like the idea of ditching the gearbox and coupling the emotor directly to the final drive (until i have to perform maintenance on the motor). It looks like the AC75 would achieve ...
by Madmax
Wed, 18 May 2016, 18:43
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

heres a dyno run of a lightly modified alfa 75 motor

http://www.alfabb.com/bb/forums/attachm ... a_dyno.pdf
by Madmax
Wed, 18 May 2016, 18:34
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Thanks guys for the warm welcome! Fortunately (or not), I love driving all of them. The Golf is a bare shell at present and the Berlina is a rolling chassis. I have two 75s, one is a daily driver and the other a parts car (but intact enough for a conversion). The suzuki is running but not registered...
by Madmax
Wed, 18 May 2016, 15:42
Forum: Technical and conversion discussion
Topic: Hello From Castlemaine
Replies: 37
Views: 4221

Hello From Castlemaine

Hi Everyone, My name is Matt and this is my first post on AEVA. I am a mechanical engineer and have a reasonable skillset with mechanical systems and tools. I am interested in performing an EV conversion and would like some input into what car to convert. Ideally the EV would have the same or better...