Search found 3057 matches

by jonescg
Mon, 11 Nov 2019, 10:37
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

I think there must be some capacitor that needs to be precharged. The master contactor should only switch under load in a fault condition. Have you tried to put a precharge resistor and checked that it is not trying to switched into a discharged capacitor? Yes, that's why I installed one, and it's ...
by jonescg
Mon, 11 Nov 2019, 09:26
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Well the aircon compressor is likely to be installed at some point this week. I'm wondering what the best approach here is - I think I will need to install a better quality master contactor precharge delay timer for a start, but the risk of a master contactor sticking is pretty real.
by jonescg
Sat, 09 Nov 2019, 13:49
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Is it a new contactor or old or did you get the upgraded gigavac already? My experience is if contacts weld once they'll be very prone to weld again and again. It was new once ;) But yeah, this one has welded several times now. I wouldn't mind getting one of these GV350 units, but it looks like the...
by jonescg
Sat, 09 Nov 2019, 11:36
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

New coilovers fitted - the car drives like a dream :D They are set to give about 140 mm of clearance all round, but still offer good damping over some of the usual bumps. Getting harder and harder to hand this car over! New ride height.jpg However I noticed when turning the car on it would still giv...
by jonescg
Fri, 08 Nov 2019, 16:18
Forum: Mitsubishi
Topic: No more i-miev's
Replies: 25
Views: 1270

Re: No more i-miev's

Well now that I've finished the Prelude I can finally move on with fitting the 60 Ah cells to Pauline's iMiEV. Will make it a bit more useful I think.
by jonescg
Fri, 08 Nov 2019, 11:01
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

I think the motor is speed limited. Rod Dilkes will be coming around on Monday night to mess with the settings a bit. It would be nice to have more torque than its current settings, as taking off in 3rd is a bit sluggish and 4th is way too slow for most circumstances. We also need to bump the regen ...
by jonescg
Fri, 08 Nov 2019, 09:05
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Yeah I am very impressed. It seems to hold about 95 km/h in 4th gear, top speed. This is no doubt a controller setting which I hope to change on Monday. Otherwise 5th gear is fine, and has a top speed of about 110 km/h I guess. No need to exceed 100 most of the time. It seems in stop-start traffic t...
by jonescg
Thu, 07 Nov 2019, 21:46
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

I took Roe Highway home today to check the car's energy consumption on the freeway. At 100 km/h it averages 13.5 kW :o If there is a slight incline, you might see 20 kW, but it soon drops to under 10 kW as you crest the hill. So on net flat ground, the electric Prelude has a highway speed range of a...
by jonescg
Thu, 07 Nov 2019, 12:53
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Can I ask did you do most of this yourself or did you get the odd bit of help from ppl? I did most of it myself. The adaptor plate was drawn up myself, but I got a mate with a big lathe to finish the job. A few friends helped with the pulling out of the oily bits (between cans of beer) but most of ...
by jonescg
Thu, 07 Nov 2019, 09:54
Forum: Charging Infrastructure
Topic: OpenEVSE Charging Station any Users?
Replies: 24
Views: 1071

Re: OpenEVSE Charging Station any Users?

I've been using reecho 's OpenEVSE on the Prelude while I test it. Unfortunately it's the only EVSE which seems to work reliably with the Prelude conversion. So I will be inclined to buy it (or a similar single phase version) for leaving with Francess. The 3-phase cables are way too heavy for the job.
by jonescg
Wed, 06 Nov 2019, 20:28
Forum: Other
Topic: MG eZS
Replies: 4
Views: 1029

Re: MG eZS

Suits me. Wonder when we'll see them?
by jonescg
Wed, 06 Nov 2019, 20:07
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Thanks for the advice on the contactors - makes sense that the bigger ones don't stick as much - more heft of copper to throw around perhaps? Another good test-drive to work and back today. I went via Cockburn to visit Jon Edwards and his DC powered fast charger. Not that the Prelude could use it, b...
by jonescg
Wed, 06 Nov 2019, 11:28
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Cabin heat.jpg
Cabin heat.jpg (244.46 KiB) Viewed 1137 times
:o :o :o

No wonder children and animals die in hot cars!
by jonescg
Wed, 06 Nov 2019, 10:06
Forum: AEVA WA Branch
Topic: Mosman Park Mens Shed - Craft Fair and EV Display - Sunday November 10th
Replies: 0
Views: 454

Mosman Park Mens Shed - Craft Fair and EV Display - Sunday November 10th

The Mosman Park Men's Shed are hosting a craft fair on the 10th of November and the AEVA will be displaying a selection of EVs. Please get in touch with Ant or Myself (secretary@aeva.asn.au) if you want to display a vehicle or bike. We need to be there at 8:30 am for a 9 am start, as once the vehicl...
by jonescg
Wed, 06 Nov 2019, 06:48
Forum: Electric motors and controllers
Topic: Grounding shielding around motor cable
Replies: 7
Views: 672

Re: Grounding shielding around motor cable

I think it resides in the correct forum 😕
by jonescg
Mon, 04 Nov 2019, 21:30
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

I'll have to get a number on this tomorrow, but about 21 kW I think. It takes about 8 kW to maintain 60 km/h, and 14 kW to do 80 km/h.
by jonescg
Mon, 04 Nov 2019, 21:04
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

I should add - the wobble board effect has been reduced somewhat, but it's definitely still there. I need to mount a gopro under the car and go for a drive to see what's happening. Hopefully the new coilovers will fix a lot of that.
by jonescg
Mon, 04 Nov 2019, 20:22
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Drive report - After a few short trips not far from home over the weekend, I decided to drive to work today. I packed the OpenEVSE just in case I needed a 3 phase socket at some point. There was no regen going down the hill. So presumably the controller was set to engage regen below a particular vol...
by jonescg
Mon, 04 Nov 2019, 08:35
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

Well in the case of the drive contactor, I might swap it out for one of these: https://www.gigavac.com/sites/default/files/catalog/spec_sheet/gv200.pdf The auxiliary contacts are good for indicating it's on (or stuck). I didn't wire up the auxiliary contacts on the master contactor, mainly because I...
by jonescg
Sun, 03 Nov 2019, 10:02
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

One option might be to abandon the master contactor all together? Since the rear modules are in the middle of the battery, it's easy enough to install an isolator back there. Then I can enjoy having all components at the front of the car being powered all the time, but at least no nuisances with con...
by jonescg
Sat, 02 Nov 2019, 21:29
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 534
Views: 40420

Re: Prelude conversion project - some questions

The charger was replaced with a CAN-controlled one, but frustratingly, the charger ran on a 500 kbps rate, while all other BMS stuff was on 250 kbps. The only remedy for this was to re-program all 8 BMS modules, the current sensor, EVMS and the screen. Thankfully Ian came around to my house to help ...
by jonescg
Fri, 01 Nov 2019, 15:42
Forum: Nissan
Topic: Leaf in the tropical north
Replies: 16
Views: 1134

Re: Leaf in the tropical north

Was that the black one from Wangarra? I had my eye on it too ;)
by jonescg
Thu, 31 Oct 2019, 16:02
Forum: Renewable Energy and Storage (Non-EV)
Topic: Storing energy
Replies: 13
Views: 684

Re: Storing energy

Screw pumps are low flow, high pressure (head) systems which would be a good fit for sending water a long way uphill. We used one back in Emu Vale to pump about 60 m of head. I use this calculator - https://www.engineeringtoolbox.com/hydropower-d_1359.html Put in the head and the flow and calculate ...
by jonescg
Wed, 30 Oct 2019, 09:34
Forum: Electric motors and controllers
Topic: Grounding shielding around motor cable
Replies: 7
Views: 672

Re: Grounding shielding around motor cable

Check for continuity between the shield and the motor chassis. If there is none, that's good - it means you can connect the shielding cable to the same shield as your BMS communications. You want to minimise any potential ground loops, so have all shields meet at the same point if possible.
by jonescg
Tue, 29 Oct 2019, 14:34
Forum: Renewable Energy and Storage (Non-EV)
Topic: Storing energy
Replies: 13
Views: 684

Re: Storing energy

I have wanted to do a similar thing in the opposite direction - run an efficient heat pump for cooling water/glycol and circulating this through the home aircon system. If you went as far as making ice you can exploit the high latent heat of fusion to cool things down. Since water has the highest sp...