Search found 2431 matches

by jonescg
Today, 09:25
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

A little more progress to report. The rear pack subframe is painted and bolted in position. The battery pack can now be offered up to it and bolted in place. Just need to finish the battery pack :) All the modules are done, and the BMS + thermistors have been set into position. I need to get some 2-...
by jonescg
Fri, 18 Jan 2019, 08:55
Forum: Batteries, charging, management and monitoring
Topic: 7kW vehicles using 3-phase sockets
Replies: 5
Views: 102

Re: 7kW vehicles using 3-phase sockets

So long as there is a current interrupt in the line, it should be okay. My understanding of AS3000 says you can't have a 32 A supply and a 15 A socket without a 15 A MCB/RDC in line. Otherwise you could plug a 25 A appliance in, roast the 15 A cable section and nothing will trip. So why would a 25 ...
by jonescg
Thu, 17 Jan 2019, 08:54
Forum: Batteries, charging, management and monitoring
Topic: 7kW vehicles using 3-phase sockets
Replies: 5
Views: 102

Re: 7kW vehicles using 3-phase sockets

So long as there is a current interrupt in the line, it should be okay. My understanding of AS3000 says you can't have a 32 A supply and a 15 A socket without a 15 A MCB/RDC in line. Otherwise you could plug a 25 A appliance in, roast the 15 A cable section and nothing will trip.
by jonescg
Tue, 15 Jan 2019, 15:44
Forum: Mitsubishi
Topic: Replacement Battery Options for 2012 i-MiEV?
Replies: 20
Views: 849

Re: Replacement Battery Options for 2012 i-MiEV?

Well if the 100 Ah cells don't fit, there's a good option for two 42 Ah cells in parallel.
Will need to try and lay them out, but there should be a way of making it work. Even if it means remote fly-wires for the BMS.
by jonescg
Mon, 14 Jan 2019, 13:00
Forum: The Lounge
Topic: 48V DC pump for fire fighting?
Replies: 6
Views: 133

Re: 48V DC pump for fire fighting?

Oh - only a little guy. I thought you were chasing a 10 hp pump for firefighting or something.
Any electric water pump for a household running on mains power will have an AC motor, and this calls for an inverter. But if you aren't chasing high power then yes a simple, small DC motor should be fine.
by jonescg
Mon, 14 Jan 2019, 09:58
Forum: The Lounge
Topic: 48V DC pump for fire fighting?
Replies: 6
Views: 133

Re: 48V DC pump for fire fighting?

Surely you could couple a DC motor often used for forklifts and the like to a pump? Nice and simple, and it doesn't rely on an inverter to function. At a pinch you can hook it up directly to the battery.
by jonescg
Fri, 11 Jan 2019, 13:06
Forum: Nissan Leaf
Topic: Non OEM Leaf battery upgrade?
Replies: 24
Views: 1950

Re: Non OEM Leaf battery upgrade?

https://www.youtube.com/watch?v=d-ka4-mG_0I In this video the guy explains how retaining the vehicle's original BMS was the easiest way to keep the vehicle's onboard computer happy. So I might try and re-pack a Leaf battery with a new BMS and wiring, but have it so you can swap the BMS at the last m...
by jonescg
Fri, 11 Jan 2019, 10:06
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

I finally got around to testing the cooling system on this battery module. To be honest I'm disappointed, but it's not all bad. Let me explain. First up, this is a 4.4 C discharge on a cell which is nominally 1-2 C and 5 C burst - so I'm fairly hammering it. At 330 amps, the busbar linking the two h...
by jonescg
Thu, 10 Jan 2019, 16:04
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

I'm not too worried about heating the battery - like Brisbane, Perth is pretty mild and it will warm up in operation before too long. I can choose to not circulate the pumps below 22'C.
One option could be to put the battery radiator in front of the aircon condensor since it's shedding less heat?
by jonescg
Thu, 10 Jan 2019, 15:36
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

After watching the Weber Auto video https://www.youtube.com/watch?v=_ILkLUE3Zxc on the three coolant loops on the Chevy Bolt, I'm starting to reconsider my approach to cooling the battery with a radiator. The Bolt EV uses a liquid coolant circulated through the battery pack, however it doesn't pass ...
by jonescg
Thu, 10 Jan 2019, 09:01
Forum: The Lounge
Topic: Hello from Perth
Replies: 4
Views: 198

Re: Hello from Perth

Hi Fred,
Welcome to the forum! Our first WA branch meeting for the year is in February at UWA. Hope to catch you there!
The image thing is frustrating, and we're steadily working on it. Hopefully it's rectified soon.
Cheers,
Chris
by jonescg
Wed, 09 Jan 2019, 11:40
Forum: Holden/Chev Volt
Topic: Chevy Bolt motor / transaxle teardown
Replies: 3
Views: 317

Chevy Bolt motor / transaxle teardown

I really love watching these videos by John Kelly and the Weber Auto team. APhRPSdmdmk The Bolt motor and transaxle is an outstanding bit of engineering. I love the way the driveshaft goes right through the rotor :D Also notice how big the entire assembly is - smaller than a watermelon but good for ...
by jonescg
Wed, 09 Jan 2019, 08:33
Forum: Mitsubishi
Topic: Replacement Battery Options for 2012 i-MiEV?
Replies: 20
Views: 849

Re: Replacement Battery Options for 2012 i-MiEV?

Interesting - I just noticed this:
iMiEV Capacity.JPG
iMiEV Capacity.JPG (172.11 KiB) Viewed 522 times
It looks like the maximum capacity is set to 60 Ah... Might be worth sticking to a 70 Ah cell then :?
by jonescg
Tue, 08 Jan 2019, 14:01
Forum: The Lounge
Topic: Solar panels on an EV roof
Replies: 17
Views: 348

Re: Solar panels on an EV roof

@T1 Terry - I don't think I can move threads, but hopefully Dave, Mike or Rob can.
by jonescg
Mon, 07 Jan 2019, 20:36
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 71
Views: 3430

Re: Francisco's Electric Pajero

Looking at the area of the floor of the battery, you will want a fairly strong material. I'm using that honeycomb sandwich material for the battery floor of the Prelude, but it's a lot of trouble - I wouldn't recommend it. But maybe the Dibond aluminium / polyethylene with appropriate beams would wo...
by jonescg
Mon, 07 Jan 2019, 20:17
Forum: EV Racing
Topic: HP in EV vs HP in ICE
Replies: 10
Views: 370

Re: HP in EV vs HP in ICE

One of the bonuses of EVs doing burnouts is that you can spin the tyre up to full speed within a few rotations. You get to something like this pretty quick :)
Image
by jonescg
Mon, 07 Jan 2019, 14:54
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 71
Views: 3430

Re: Francisco's Electric Pajero

That is going to be one rather large battery! Looks good.
by jonescg
Mon, 07 Jan 2019, 14:28
Forum: Admin Notices
Topic: Image uploading problem fixed
Replies: 2
Views: 201

Re: Image uploading problem fixed

Yay! No more 'square-circle-triangle' icons!
by jonescg
Sun, 06 Jan 2019, 20:34
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

I have finished the rear pack subframe. Well, I think it's done. Seeking advice, but I think this will be sufficiently rigid and plenty strong to support a 120 kg battery pack. If push comes to shove I can add additional rails which bolt back onto the main frame rails. Subframe done.jpg I mounted an...
by jonescg
Thu, 03 Jan 2019, 21:06
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

Hehe, I spent a bit of time in Vancouver, so I learned the word there, but yes, AVE uses the word quite a lot :D Honestly with this build the most complicated part is the motor adaptor plate and clutch fitment, which I will happily leave to Daniel Booth to work out for the most part. The Prelude has...
by jonescg
Thu, 03 Jan 2019, 14:55
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

Apologies for the shaky picture...
Subframe almost done.jpg
Subframe almost done.jpg (55.29 KiB) Viewed 588 times
Much better. I could gusset the back of the tubes with a piece of 3 mm flat bar, so now everything is skookum.
by jonescg
Thu, 03 Jan 2019, 09:19
Forum: Other
Topic: Chris' E-Max 110S (Pb to Li)
Replies: 27
Views: 6257

Re: Chris' E-Max 110S (Pb to Li)

I think we're seeing a peak of 80 A - so barely 1.3 C. It's only a 4 kW hub motor and it's limited to 70 km/h.
by jonescg
Wed, 02 Jan 2019, 22:10
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

Hmm, change of plans - I will instead build two separate uprights using SHS. One for either side of the 4WS rod. Should make it easier to install too.
by jonescg
Wed, 02 Jan 2019, 20:10
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

Progress was made on the rear battery subframe. I figured I would start with the 900 mm x 700 mm perimeter of the battery floor. I used 25 mm SHS (1.6 mm wall thickness) and welded it up using my trusty stick welder. The next step was to affix hangers where I could use the existing M6 threaded holes...
by jonescg
Mon, 31 Dec 2018, 19:30
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 132
Views: 9562

Re: Prelude conversion project - some questions

IDjDTpXltbM I hope to set the temperature logging up at the end of the week and do a full discharge test. At 12 kW load (that's 5C) the module should be generating 760 W of heat. I'm keen to see how the thermal epoxy goes at transferring the heat across to the cooling plate, however this is the 'sp...