Search found 32 matches

by BiGH
Tue, 18 May 2010, 18:20
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

Oh, i'm also trying to find some contactors that are rated to that level (300v 1000a). I want to run multiple contactors through the battery pack to split the 288v LETHAL DC into smaller safer voltages. so that when the car is off its split into 72v packs. which might also help with charging
by BiGH
Tue, 18 May 2010, 18:16
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

Hi Haydon, Yeah, sounds like we are aiming for similar performance. I've mentioned it in my other thread, but basically I'm looking to build a car suitable for track work so it can be used in time attack events. The car will need to be able to perform 3 laps around a race for each round of the time...
by BiGH
Tue, 18 May 2010, 17:48
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

I think your probably aiming for a similar level of performance as I am. i'm looking at doing a toyota MR2 with around 288v (or whatever the max of the motor is) with up to 1000a). Assuming some voltage sag thats what 250 kw? more than enough power for a light small car with limited batteries. I'm ...
by BiGH
Wed, 12 May 2010, 20:29
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

Try the digikey P11666-ND. They are only 560uF so you may need to use more of them. Hey Everyone, I don't have the logic side done as yet, i'm waiting on the next incarnation that will include CAN, but i've got a need to order some parts for my ebike from Digikey, and I figgured I may as well order...
by BiGH
Thu, 22 Apr 2010, 20:26
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

just to update - my situation has changed, got myself a full time job so there is now more to be spent on this conversion. I've ordered 8x igbts from an ebay seller (from my other thread) and am waiting for those to arive. I'm trying to find out information on ADRs - specifically ADR86 for post 1995...
by BiGH
Sat, 20 Mar 2010, 01:23
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

JohnStan - thanks but i'm looking at using IGBTs

Mcudogs - I'm wanting a higher voltage caps than 200v, did you want to suggest some parts that had say a 400v limit?
by BiGH
Fri, 19 Mar 2010, 15:17
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

to the more electrically inclined. Why do we use 16 x 820uF caps instead of less Larger capacity ones? is it a price thing? or is to do with the caps properties?
by BiGH
Fri, 19 Mar 2010, 00:13
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

do we have any photos of completed Rev 2d? boards?
by BiGH
Thu, 18 Mar 2010, 19:31
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

THANKYOU!! :)
by BiGH
Thu, 18 Mar 2010, 18:17
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

mcudogs - the link to the 2D schematic is broken, could you provide a new link? Also what differences are there to the 2c one?
by BiGH
Tue, 16 Mar 2010, 01:31
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

going direct drive has little effect on how much battery you need. more battery = more range + more *max* power for direct drive you will need a bigger controller. more controller = more torque = more acceleration. Matt bigger controller = pulls more amps at high load situations (ie taking off) = i...
by BiGH
Mon, 15 Mar 2010, 20:26
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

Your welcome. Mmm direct drive. That's gonna need a LOT of batteries! Hav you worked out what your max speed is likely to be? If I was going to do direct drive I'd be very much considering an AC drive.

Regardless. Transwarp 11 I'm jelous.
by BiGH
Mon, 15 Mar 2010, 20:16
Forum: Electric motors and controllers
Topic: Open Source DC controller
Replies: 110
Views: 17776

Open Source DC controller

You might want to hold off then. Paul is working on a 1000a synchronous rectification based controller at the moment. The alternate is that you could use igbts insted of mosfets for the power stage. This drives the cost up slightly but makes for an easier build. Two users in the thread have gone the...
by BiGH
Sat, 13 Mar 2010, 03:23
Forum: AEVA VIC Branch
Topic: Is there a March Melbourne Meeting 2nite?
Replies: 5
Views: 2212

Is there a March Melbourne Meeting 2nite?

Was great meeting everyone tonight. Was interesting, learned a bit and most importantly, enjoyed it a lot.

Thanks everyone. Looking forward to the next one!
by BiGH
Fri, 12 Mar 2010, 20:29
Forum: AEVA VIC Branch
Topic: Is there a March Melbourne Meeting 2nite?
Replies: 5
Views: 2212

Is there a March Melbourne Meeting 2nite?

Melbourne Branch holds meetings at 7.00pm, on the second Friday of each month at the Oakleigh RSL Hall, Drummond St , Oakleigh. Opposite the Oakliegh Libraryl. Melway Map 69 G7 Is this where the meeting is/ should be? edit i'll be riding in circles on the electric bike waiting for people to arrive m...
by BiGH
Fri, 12 Mar 2010, 19:37
Forum: AEVA VIC Branch
Topic: Is there a March Melbourne Meeting 2nite?
Replies: 5
Views: 2212

Is there a March Melbourne Meeting 2nite?

Hi Tim,
Yep might do that later on. But I'll definitely get down there tonight regardless too.

Haydon
by BiGH
Fri, 12 Mar 2010, 13:59
Forum: AEVA VIC Branch
Topic: Is there a March Melbourne Meeting 2nite?
Replies: 5
Views: 2212

Is there a March Melbourne Meeting 2nite?

hey everyone,
Is there going to be a march melbourne meeting tonight in oakley?
by BiGH
Thu, 11 Mar 2010, 01:09
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

i've got no problems with taking a lot of time, its more the money side of things I've got problems with at the moment.

To make things worse had a car accident on monday. :(
by BiGH
Fri, 05 Mar 2010, 12:56
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

I also need to visit some service centers to see if i can get some batteries. forklift batteries tend to be rather heavy for the energy they store. they are also fairly low voltage. IIRC, the last forklift battery i saw brand new was 48v 1000Ah and cost AUS$5000. i tried to find numbers for gear ra...
by BiGH
Fri, 05 Mar 2010, 06:37
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

Thanks Johnny I will :)

edit: just tried to upload the photo again - its 61kB and still gets the error :(
by BiGH
Thu, 04 Mar 2010, 06:39
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

I've got no idea on sources for a forklift motor tho. I'm going to start to try forklift supply places around.

I also need to visit some service centers to see if i can get some batteries.
by BiGH
Thu, 04 Mar 2010, 06:36
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

hi Matt, I think you're right. one of the cars on EValbum has a impulse9 - so i'd assume that up to a 9" motor would be not too mcuh dramas - which is plenty for a small light car like the mirage. I'd love an AC motor, but I just don't think its possible for me just yet. maybe in a year i'll retrofi...
by BiGH
Wed, 03 Mar 2010, 23:42
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

hi Haydon, how big was the file? there is a 100kb limit. i usually get that error when trying to uplad something a little to big. good to hear you're going ahead with it :D Matt I tried to upload one that was >100kb. then made a second one smaller than 100kb, still no joy. i'll try again later. her...
by BiGH
Wed, 03 Mar 2010, 16:26
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

trying to upload a photo of the car i'm getting: Microsoft VBScript runtime error '800a0035' File not found /forums/functions/functions_upload.asp, line 455 booo :( anyways i'm going to buy the car - and start fixing up the bodywork in a few places. (minor scrapes and a dint in) maybe some minor met...
by BiGH
Tue, 02 Mar 2010, 20:34
Forum: General EV Discussion
Topic: Suitable EV - 1997 Mitsubishi Mirage?
Replies: 25
Views: 3006

Suitable EV - 1997 Mitsubishi Mirage?

USD $4455 from EV components plus shipping. HMM that's not as bad as I thought it would be. That's really do-able!