Search found 12 matches

by ibruinsma
Tue, 01 May 2012, 23:32
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

Yea, I agree. Why can't all this be in controllers, including the main contactor, it does not cost much and it makes it all so simple... I wish!!!! One day – I will design a controller/charger/main contactor/BMA interface all in one box, now wouldn’t that be logical… One day… When I am rich and famo...
by ibruinsma
Tue, 01 May 2012, 17:02
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

I would like to add that this circuit still needs you own design work on the: * 12V battery Charger connection and relay (it is wrong), and pre-charge (if possible) for the charger etc... * Fusing everywhere to the appropriate limits on all signals, including the DC-DC converter circuit. Especially ...
by ibruinsma
Fri, 02 Sep 2011, 04:41
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

After studying up on AC and DC relays, and why the DC rating is lower than the AC rating, it ends up that: 1)     Both AC and DC form an arc when the contacts open, however for AC the arc is only sustainable until the AC has a zero crossing (approx 10mS worst case). A DC arc is sustained continually...
by ibruinsma
Sun, 21 Aug 2011, 14:16
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

Oh Yea, Someone pointed out that the Relay part number was not changed from Ver 2.0 (SPDT: Jaycar SY4050) to Ver 3.0 (DPDT: Jaycar SY4052). So if you still want to experiment with this circuit, then the DPDT relay (Jaycar SY4052), even though it doesn not have the "DC Volatge Rating". "I don't make ...
by ibruinsma
Sun, 21 Aug 2011, 03:30
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

Excellent stuff guys... It is good to see there is some good discussion about safety here... I think there is not enough safety applied to any of this EV stuff... Yes I agree with the safety hazards when using AC rated parts that are used as a DC circuit breakers. All the reading I have done so far ...
by ibruinsma
Tue, 02 Aug 2011, 01:46
Forum: AEVA NSW Branch
Topic: Precharge & PostDischarge
Replies: 16
Views: 6896

Precharge & PostDischarge

Here is version 3 of the Precharge and Post Discharge circuit that a number of us have used so far. This one does not use a rectifier, it switched the polarity of the Buzzer by using the second half of the relay. I have also found that if you are using a DC circuit with a very large capacitor, you m...
by ibruinsma
Wed, 16 Mar 2011, 03:10
Forum: AEVA NSW Branch
Topic: Purchase of a Headways - How to buy & Air freight
Replies: 2
Views: 1485

Purchase of a Headways - How to buy & Air freight

I spoke to the Customs Broker and they were happy for me to give their details on this forum for anyone else who wants to use them.

He is:
William Jacobs
http://www.alltradecustomsclearing.com.au/
willj@accf.com.au

by ibruinsma
Tue, 15 Mar 2011, 22:55
Forum: AEVA NSW Branch
Topic: Purchase of a Headways - How to buy & Air freight
Replies: 2
Views: 1485

Purchase of a Headways - How to buy & Air freight

OK, I have gone with a different option... I did the lowest cost economy to Sydney Airport option with the Chinese Headway supplier. It ended up only slightly higher than sea freight, and the batteries arrived within less than a week. Economy air option means that they will ship it on the next empty...
by ibruinsma
Mon, 14 Feb 2011, 14:57
Forum: AEVA NSW Branch
Topic: Purchase of a Headways - How to buy & Air freight
Replies: 2
Views: 1485

Purchase of a Headways - How to buy & Air freight

OK I am ready to organize a group buy my batch of Headways for the Sydney Members. Is there anyone else out there that wants to join in an pool the shipping costs? It is typically about $1000 shipping for a large amount, if we can get 4 of us, we can pool together - then it is a great deal. ....15th...
by ibruinsma
Wed, 27 Oct 2010, 18:13
Forum: The Lounge
Topic: Smart car conversion
Replies: 10
Views: 3612

Smart car conversion

It is a bit late fr the weight measurments, besides I need to add and subtract - So the key aspect is the weights and weigth distribution with the Electric Version in Europe. Does anyone have info on the weights??.... PS: So far the origianl Combustion engine is out and the Smart shell is all that's...
by ibruinsma
Sun, 17 Oct 2010, 03:06
Forum: The Lounge
Topic: Smart car conversion
Replies: 10
Views: 3612

Smart car conversion

OK, Mine is a Feb 2004 Pulse. The Engine is warn, so I am giving it a new heart.

Ian
by ibruinsma
Sat, 16 Oct 2010, 14:38
Forum: The Lounge
Topic: Smart car conversion
Replies: 10
Views: 3612

Smart car conversion

I have taken the plung in converting the Smart (early stages yet)... But it should not be too hard. Big issues: 1) Fooling the ECU that the engine is still running 2) Getting the ECU to change gears 3) Weight distribution. Has anyone got any data on the weight distibution of the european electric sm...