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by BigMouse
Mon, 16 Dec 2013, 03:29
Forum: General EV Discussion
Topic: DIY Game Changer?
Replies: 41
Views: 4698

DIY Game Changer?

4. The Blade is already a workable EV. Yes, it is a conversion/retrofit, but so was the Tesla Roadster. Similar but hardly the case now with the model S !!! That's exactly the point I was trying to make. The "next generation" Blade could be something novel and polished. You mention "that's business...
by BigMouse
Sun, 15 Dec 2013, 23:43
Forum: General EV Discussion
Topic: DIY Game Changer?
Replies: 41
Views: 4698

DIY Game Changer?

BigMouse I’m curious about why you think the Blade Vehicle should be supported from the tax payers’ dollar? Can you list your top ten reasons why? I ask this because I (like acmotor) have very mixed views about the Blade and want to be convinced it would be a good idea. After Mitsubishi and now Hol...
by BigMouse
Sun, 15 Dec 2013, 19:49
Forum: General EV Discussion
Topic: DIY Game Changer?
Replies: 41
Views: 4698

DIY Game Changer?

With the dinosaurs of the auto world packing up and going home by 2017, there is a real chance that a locally produced small EV could really take off. Even if it's got some element of DIY to it... Maybe this time the gov't will pay more attention to Ross Blade when he comes knocking? I doubt it, bu...
by BigMouse
Sun, 15 Dec 2013, 19:46
Forum: Parts & Suppliers
Topic: Leaf cells
Replies: 40
Views: 11082

Leaf cells

jonescg wrote: Heading back to the USA?


Possibly. Graduate in July, got a phone interview with a US company next week, and visiting their HQ in January (because I'll be in town). Will see how it goes.
by BigMouse
Sun, 15 Dec 2013, 16:56
Forum: Parts & Suppliers
Topic: Leaf cells
Replies: 40
Views: 11082

Leaf cells

Looks like my situation may be changing mid next year, and my personal EV conversion may not happen (in Australia at least). I'm going to have to stop collecting EV parts (including these batteries) until I know what's going to happen. Sorry about that. It's so hard to let a deal like that go! They'...
by BigMouse
Sun, 15 Dec 2013, 01:49
Forum: Members Machines
Topic: The mauswerkz 300zx EV build
Replies: 43
Views: 7919

The mauswerkz 300zx EV build

Update! Motor is mounted! https://dl.dropboxusercontent.com/u/301235/EV%20Project/300zx/motormounted.jpg The mounts will come off again to make the welds a bit nicer and paint them up for protection. The mounting is fairly rigid, which should transfer -some- motor whine in to the cabin. Hopefully th...
by BigMouse
Fri, 13 Dec 2013, 05:42
Forum: General EV Discussion
Topic: VW stretch with Tesla S underpinnings DIY
Replies: 1
Views: 461

VW stretch with Tesla S underpinnings DIY

Otmar of Zilla controller fame. Shame it's going in to something so hideous.
by BigMouse
Thu, 12 Dec 2013, 22:21
Forum: General EV Discussion
Topic: DIY Game Changer?
Replies: 41
Views: 4698

DIY Game Changer?

I've been working for several years now toward the goal of producing an AC motor controller for the DIY market. Now, as I'm finally getting around to putting it in a car, the reality that the market has gone is starting to settle in. No big deal, I'm happy that EVs are taking off. I think instead of...
by BigMouse
Thu, 12 Dec 2013, 22:10
Forum: EV Motoring
Topic: New production EVs and PHEV
Replies: 38
Views: 5787

New production EVs and PHEV

Adverse Effects wrote:
$200K USD there jokeing arnt they?


Ahhh, the Tango. Such a silly looking thing. They're proper fast though. Apparently George Clooney has one (I think). Outrageously priced, for sure. It's hilarous what they want for something that looks like half a Ford Fiesta.
by BigMouse
Thu, 12 Dec 2013, 03:24
Forum: Parts & Suppliers
Topic: Leaf cells
Replies: 40
Views: 11082

Leaf cells

They're in a sealed enclosure in the Leaf. It'd have to be a very hard hit to damage the battery pack. As long as it's not caught up in a flood or fire, they should be in good shape.
by BigMouse
Thu, 12 Dec 2013, 01:17
Forum: Parts & Suppliers
Topic: Leaf cells
Replies: 40
Views: 11082

Leaf cells

That sounds pretty good.

A 60Ah CALB cell is roughly AU$0.45/Whr
These would be roughly AU$0.25/Whr. I'd be up for that, for sure! I'd want 6x8packs, if they have it.

EDIT: Or 2x24packs, or 50 individual modules, or any other combination that gets me 22-26kWhr.
by BigMouse
Sun, 08 Dec 2013, 03:23
Forum: Batteries, charging, management and monitoring
Topic: TC Charger or What?
Replies: 11
Views: 1702

TC Charger or What?

I contacted them about a "CAN" enabled charger, but they didn't seem to want to sell me one without their $50 CAN box. I tried to tell them my BMS communicates directly with the charger without their box and they insisted it wouldn't work without it. I couldn't get across that I actually had one of ...
by BigMouse
Sat, 07 Dec 2013, 05:16
Forum: EV Motoring
Topic: OK Cheap DC Clamp Meter
Replies: 4
Views: 2345

OK Cheap DC Clamp Meter

I've had one of these for a couple years now, but I've only used it rarely. I recently tested it on AC against a calibrated clamp meter and got values that were reasonably close. I wouldn't use it to calibrate anything else, but it's more than good enough for general testing.
by BigMouse
Fri, 06 Dec 2013, 15:54
Forum: Mitsubishi
Topic: New MY14 Imiev Fast charging $22,995
Replies: 11
Views: 1593

New MY14 Imiev Fast charging $22,995

People have to be educated about the incorrect justification that it "costs more to ship here" and recognize that the AUD/USD exchange rate has been close to parity for around 5yrs now. There's just no reason for a price difference like the ones we see. Well actually there is - volume. Australia is...
by BigMouse
Fri, 06 Dec 2013, 14:42
Forum: Mitsubishi
Topic: New MY14 Imiev Fast charging $22,995
Replies: 11
Views: 1593

New MY14 Imiev Fast charging $22,995

You realise, those new BEV prices (e.g. 2014 iMiEV) are going to make buying a leaf or volt etc in Oz even less popular. Shame in a way.    http://forums.aeva.asn.au/smileys/smiley6.gif You mean because the price would likely be close to double that here? I think the more people are aware of the ri...
by BigMouse
Mon, 02 Dec 2013, 04:41
Forum: General EV Discussion
Topic: G2 Prius Plug in Purchased....
Replies: 89
Views: 14318

G2 Prius Plug in Purchased....

Cells 6 and 7 seems to mirror each other toward the first part of the log and again in the middle. ... We certainly suspect the BMS to be faulty at this point. It could be as simple as the connections from the BMS to the cells. For example, if the connection between cells 6 and 7 was loose or open ...
by BigMouse
Sun, 01 Dec 2013, 19:14
Forum: General EV Discussion
Topic: G2 Prius Plug in Purchased....
Replies: 89
Views: 14318

G2 Prius Plug in Purchased....

Here's a screen capture for easier review (right click, "View Image" in Firefox to see full res): https://dl.dropboxusercontent.com/u/301235/EV%20Project/Prius%20PHEV%20log.jpg Some words to go with it: The plot shown shows the BMS's logged cell votlages for each cell over roughly 18 minutes while o...
by BigMouse
Sun, 01 Dec 2013, 15:28
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 368863

Weber and Coulomb's MX-5

Not to limp mode yet as it could still maintain 55 km/h. Some impatient person beeped their horn at me so I thought it unsafe to slow any further on the motorway. Everyone behind me was probably pissed off but they were politely restrained, and at least the MX-5 kept going. By the time we got near ...
by BigMouse
Sat, 30 Nov 2013, 17:13
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 368863

Weber and Coulomb's MX-5

Does your BMS report SoC, or do you only know it's empty when it approaches the low-voltage cutout?
by BigMouse
Fri, 29 Nov 2013, 03:34
Forum: Technical and conversion discussion
Topic: Contactor orientation
Replies: 40
Views: 7747

Contactor orientation

I've often wondered, on AC conversions, what happens if you need to open the contactor during regen. The potential would be reversed. I suppose the controller would drop out as it senses a rising DC bus voltage within the controller and extinguish the arc. Regen can't occur due to shorted IGBTs (wit...
by BigMouse
Thu, 28 Nov 2013, 14:22
Forum: The Lounge
Topic: Derogatory auto acronyms
Replies: 7
Views: 1250

Derogatory auto acronyms

BMW: Break My Windshield
by BigMouse
Wed, 27 Nov 2013, 03:53
Forum: General EV Discussion
Topic: G2 Prius Plug in Purchased....
Replies: 89
Views: 14318

G2 Prius Plug in Purchased....

A drop from 3.3 to 2.9v at a current of 74A represents an internal resistance of 5mOhm. This isn't excessive and is likely within spec for the battery. I suspect they're simply at a lower SoC than the rest of the cells. I think manual balancing is worth a shot before replacing the pack.
by BigMouse
Wed, 27 Nov 2013, 00:53
Forum: General EV Discussion
Topic: Power lobby moots petrol kick for electric cars
Replies: 14
Views: 1963

Power lobby moots petrol kick for electric cars

From the article - "The cheapest – and currently the only – EV on sale in Australia is Nissan’s Leaf". Obviously the author has never heard of an i-Miev http://forums.aeva.asn.au/smileys/smiley3.gif The i-MiEV isn't "on sale" in Australia anymore. They'll import one, but only if you order it (and p...
by BigMouse
Sat, 23 Nov 2013, 16:47
Forum: Electric motors and controllers
Topic: Electronic Splitter for Throttle Outpu
Replies: 7
Views: 1397

Electronic Splitter for Throttle Outpu

A 3-wire throttle connection from a controller will have 5v (usually), ground, and the signal. The 5v from the controller is a very steady, regulated power supply. I have never seen one than changes. It's extremely likely that the 5v is just the voltage. The only time a voltage reference may be a pr...
by BigMouse
Fri, 22 Nov 2013, 05:32
Forum: General EV Discussion
Topic: G2 Prius Plug in Purchased....
Replies: 89
Views: 14318

G2 Prius Plug in Purchased....

Assuming these are LiFePO4 cells, anything below 2.5 indicates potential cell damage. It looks like cell 7 is the worst, at 1.94 (and also indicated as the low cell even when charged by your LCD photos above). I'd say a manual balancing is in order, and likely that some cells will need replacement. ...