Search found 13 matches

by Tonic
Fri, 06 Mar 2009, 21:25
Forum: General EV Discussion
Topic: Why are you into EV's
Replies: 21
Views: 3020

Why are you into EV's

This one will scare you. I'm in the process of converting a 1998 Hyundai Excel and can claim no success as yet ... however my primary reason is that I want to stop funding Saudi Arabia's Islamic Expansionist regime. Work that one out. Image
by Tonic
Tue, 03 Mar 2009, 22:46
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

OK. I just need to confirm the maths to ensure that I'm not going to get this wrong (sorry if it appears like a stupid question). http://forums.aeva.asn.au/smileys/smiley5.gif If I'm running the DC motor at 144V do I require 48 x 3V LiFePO4 batteries? (Qty = Total Voltage / Voltage per Battery). Als...
by Tonic
Mon, 02 Mar 2009, 21:32
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Hi Johny, To get max hill climbing power I guess I will run the motor at 120V. I intend to keep the gearbox that comes in the Excel as it is still in great condition and uses three of the mounts in the engine bay - which should make the motor easier to install and secure. Some of the parts you have ...
by Tonic
Mon, 02 Mar 2009, 21:13
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

After serious reflection on both my (lack of) knowledge in this field and with the resources I am willing to put into my first EV project, I have now decided to buy the 203-06-4001 from EV Motors . This will give me more money for the batteries which I will need to buy and thus give me greater range...
by Tonic
Mon, 23 Feb 2009, 23:35
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Would running the motor at 156vdc still give me reasonable performance and range (as well as half the battery cost)?
by Tonic
Mon, 23 Feb 2009, 22:39
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Hi Matt, The past few weeks has been a real crash course in electronics for me and I do believe I'm getting a good grip of all this stuff. After extensive reading I am quite sure that I want to go 3ph AC, and the Azure Dynamics AC24LS with DMOC445 Drive System will probably be the way I will go (sho...
by Tonic
Tue, 17 Feb 2009, 21:30
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Expertise on tap? ... That would be you gentlemen Image ...
by Tonic
Tue, 17 Feb 2009, 16:14
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Do all DC motors contain brushes? I read here that brushes in DC motors are bad because they obviously wear out over time, but also because they produce ozone, cause heat loss, etc. This site makes AC motors look a much more efficient option than DC, and three phase AC looks even better still.
by Tonic
Mon, 16 Feb 2009, 16:56
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Thanks for that clarification. Does that mean a battery is a form of resistor? And I guess the name "resistor" implies "resistence", therefore it is resisting the flow of electrons? I'm pretty sure now that I have a reasonable grasp of the mathematics behind things. I have also decided that I will g...
by Tonic
Fri, 13 Feb 2009, 23:01
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

OK. I think I have most of that now. Thanks heaps Matt, Coulomb and Woody for your explanations. I'm sure it will sink in more over time.   From this discussion, and a little bit of WikiPedia reading, my understanding is basically as follows: Energy is the amount of work that can be performed by a f...
by Tonic
Mon, 09 Feb 2009, 23:03
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Thank you all very much for your input. I must admit that I've had to read all these posts a few times to pick up on what is being said but I do believe I'm getting there. I understand that AC motors require a higher voltage than DC motors but I don't really understand how this impacts battery confi...
by Tonic
Sat, 07 Feb 2009, 00:01
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Hi Richo,

Thanks for ur swift reply. Yes I was intending to leave the gearbox in.

Would it be foolish to pursue the AC option? If so is the 120-144V range still applicable for a suitable motor?

by Tonic
Fri, 06 Feb 2009, 21:04
Forum: Electric motors and controllers
Topic: AC or DC?
Replies: 99
Views: 14156

AC or DC?

Hi to all. This is my first post and I am in need of an answer to which type of motor is best given my application. I must point out that I know little about electric motors and hope to learn as I go along. I have obtained a Hyundai Excel in great condition for next to nothing and intend to pull the...