Search found 683 matches

by Tritium_James
Tue, 29 Oct 2013, 19:20
Forum: Nissan Leaf
Topic: EV Highway Perth to Augusta to where-ever
Replies: 105
Views: 9495

EV Highway Perth to Augusta to where-ever

We all might be a bit surprised on usage for CBD locations. Obviously we're biased, but we use the one we've installed in our carpark all the time - it's really useful. You don't need to do a full charge: it's adding about 50km range in 10 minutes, so just a quick go for 5-10 minutes is great.
by Tritium_James
Tue, 29 Oct 2013, 16:20
Forum: General EV Discussion
Topic: The chademo M1 (F3) pacfic motorway
Replies: 25
Views: 2844

The chademo M1 (F3) pacfic motorway

Yeah, putting the E-stop at a convenient height and entirely visible is just asking for trouble - those buttons are so satisfying to press!
by Tritium_James
Tue, 29 Oct 2013, 16:18
Forum: Nissan Leaf
Topic: EV Highway Perth to Augusta to where-ever
Replies: 105
Views: 9495

EV Highway Perth to Augusta to where-ever

We're going to roll out half a dozen ourselves around Brisbane / Gold Coast in the next few months as a bit of a showcase.

But unfortunately we haven't sold 1000 to maccas just yet!
by Tritium_James
Mon, 28 Oct 2013, 21:15
Forum: Nissan Leaf
Topic: EV Highway Perth to Augusta to where-ever
Replies: 105
Views: 9495

EV Highway Perth to Augusta to where-ever

That's why we've put the E-stop on ours out of the way, and behind a 'break glass' window. Less likely to have some random passerby hit the button...
by Tritium_James
Mon, 28 Oct 2013, 16:52
Forum: Nissan Leaf
Topic: EV Highway Perth to Augusta to where-ever
Replies: 105
Views: 9495

EV Highway Perth to Augusta to where-ever

Hitting the E-stop on a Chademo charger *must* trip the incoming 3-phase breakers - kind of stupid for stuff out in public but that's the spec. So it requires someone to open the unit and flip the breaker.
by Tritium_James
Fri, 25 Oct 2013, 15:23
Forum: Batteries, charging, management and monitoring
Topic: ChaDeMo: possible replication discussion.
Replies: 12
Views: 2172

ChaDeMo: possible replication discussion.

That's the Chinese version of Chademo. They've rolled their own copy, used entirely on in-country vehicle and charger sales. It's not compatible with actual Chademo.
by Tritium_James
Thu, 24 Oct 2013, 16:28
Forum: Nissan Leaf
Topic: EV Highway Perth to Augusta to where-ever
Replies: 105
Views: 9495

EV Highway Perth to Augusta to where-ever

Oh the waste Probably even worse than you think - all those stations were put in by Better Place, require one of their cards to use, and probably aren't currently operational. Is there anyone nearby that could check? So the 'might just make it' trip from Sydney is probably doomed to disappointment ...
by Tritium_James
Thu, 10 Oct 2013, 23:38
Forum: Electric motors and controllers
Topic: adaptive magnetic flux array motor
Replies: 26
Views: 6253

adaptive magnetic flux array motor

Their (EV Engineering's) argument - and it's probably a pretty valid one - is that people want to buy large cars anyway, so if you convert large cars to EVs you make more of a difference to emissions. Selling only small EVs means that the 'large car' people will never buy an EV. It's better having a...
by Tritium_James
Mon, 16 Sep 2013, 15:22
Forum: Nissan Leaf
Topic: Nissan Leaf - Charging.
Replies: 70
Views: 12794

Nissan Leaf - Charging.

I've got 180km out of ours around town, driving like grandma! That's all on short trips doing random running about, I'm sure a steady drive could get a bit further out of it.

Our Leaf also reports about 21-22kWh pack capacity via Chademo (it varies each time), and has since it was new.
by Tritium_James
Fri, 13 Sep 2013, 17:28
Forum: Batteries, charging, management and monitoring
Topic: Accessory battery
Replies: 10
Views: 1208

Accessory battery

Yep, I pulled a number out of the air and specified that it had to run the hazard lights for 20 minutes. Which is a really small battery, especially if you have LED indicators! You'll probably want something a bit bigger so your 12V doesn't sag too badly if you have a high-current load that turns on...
by Tritium_James
Wed, 11 Sep 2013, 17:44
Forum: The Lounge
Topic: Solar (thermal) HWS vs PVs
Replies: 31
Views: 2992

Solar (thermal) HWS vs PVs

Sounds like a nice system would be an electric HWS you can run from the ~600V DC coming off the PV, so that the excess electrical capacity can be used, but without having to have a larger inverter to go with it.
by Tritium_James
Tue, 03 Sep 2013, 22:46
Forum: Mitsubishi
Topic: New to the forum & new I-miev
Replies: 448
Views: 39188

New to the forum & new I-miev

Kurt, Look for that guy to have a post in a couple of months where his car burnt his house down because he forgot to turn it off / the charger had a fault / etc etc. Charging in any way where the vehicle's BMS doesn't have control over the process is incredibly dangerous. Yes, he's thought through t...
by Tritium_James
Tue, 03 Sep 2013, 15:42
Forum: Batteries, charging, management and monitoring
Topic: NCR18650B
Replies: 12
Views: 2248

NCR18650B

I've done them as 'sheets' of cells on a large (700 x 180mm) PCB. For the solarcar, it's 11 cells in parallel for each group, and then 8 groups in series, per sheet. There's one of our BMS CMUs mounted on the sheet, with all cell sense wiring on the PCB. There's five sheets in the pack, along with a...
by Tritium_James
Mon, 02 Sep 2013, 16:30
Forum: Batteries, charging, management and monitoring
Topic: NCR18650B
Replies: 12
Views: 2248

NCR18650B

We've just designed and assembled a 5kWh solarcar battery pack for a client, and bought the NCR18650B cells from Master Instruments in Sydney. They did a great job with spot-welded PCB mount tabs on the cells. Pricing seemed good to me. The cells are VERY consistent with capacity and internal resist...
by Tritium_James
Mon, 02 Sep 2013, 16:17
Forum: Nissan Leaf
Topic: Nissan Leaf - Charging.
Replies: 70
Views: 12794

Nissan Leaf - Charging.

Yep, it's limited by the 3.3kW charger in the car, so it's still 6-8 hours for a full charge. The salesmen are completely clueless about DC fast charging - the guy that sold ours didn't even know what the 2nd charging connector in the car was for... PlanB, don't put too much hope on the telemetry. I...
by Tritium_James
Wed, 28 Aug 2013, 18:59
Forum: Nissan Leaf
Topic: Nissan Leaf - Charging.
Replies: 70
Views: 12794

Nissan Leaf - Charging.

Yep, we paid $80+GST for the last service on ours. I think they check the wheels are still attached and give you the battery health printout!
by Tritium_James
Tue, 27 Aug 2013, 23:24
Forum: Nissan Leaf
Topic: Nissan Leaf - Charging.
Replies: 70
Views: 12794

Nissan Leaf - Charging.

The main reason for the transformer is probably that they're being paranoid. It's probably not necessary, and it definitely adds a lot of cost, bulk, and losses. Yes, our charger (and any Chademo charger) monitors both the AC side for earth leakage, and runs an isolation monitor on the DC side as we...
by Tritium_James
Mon, 26 Aug 2013, 18:47
Forum: Nissan Leaf
Topic: Nissan Leaf - Charging.
Replies: 70
Views: 12794

Nissan Leaf - Charging.

Chademo requires isolation (>2kV) to the mains from the car, you MUST have a transformer in there somewhere. We use a HF transformer in our design, which is why we've got the size down as far as we have on the Veefil. At this power load, to be able to connect to the grid, you also need very careful ...
by Tritium_James
Fri, 16 Aug 2013, 20:46
Forum: Charging Infrastructure
Topic: Commercial charging stations
Replies: 16
Views: 2825

Commercial charging stations

Gabz, are you looking for a slow charge (overnight) or fast charge (20-30 minutes) type charger?
by Tritium_James
Fri, 16 Aug 2013, 18:20
Forum: Batteries, charging, management and monitoring
Topic: Chademo
Replies: 22
Views: 2781

Chademo

Chademo is sure a lot easier to implement than SAE. :) The software side of it is two CAN packets and some quite tight timing requirements.

SAE is about 4 layers deep of their protocol over compression over SOAP over HTTPS over IPv6 over HomePlug GreenPhy powerline comms. What a mess...
by Tritium_James
Fri, 16 Aug 2013, 18:16
Forum: Mitsubishi
Topic: CHAdeMO retrofit
Replies: 18
Views: 2376

CHAdeMO retrofit

Oh, I know *they've* done it already, but that software sure isn't in the production vehicles and you'll have a hell of a time trying to do the same thing yourself here! The Chademo standard has no provision whatsoever for V2G (the requested current from the vehicle can only be positive), any car th...
by Tritium_James
Fri, 16 Aug 2013, 16:09
Forum: Mitsubishi
Topic: CHAdeMO retrofit
Replies: 18
Views: 2376

CHAdeMO retrofit

Chademo, both from the factory and retrofitted (if that's possible) isn't going to let you do V2G. Although the electrical connections might be pretty much straight into the pack, there is a huge number of safety cross-checks that are run before and during charge. The vehicle controls the charger by...
by Tritium_James
Tue, 13 Aug 2013, 22:19
Forum: Technical and conversion discussion
Topic: C-Tick/RCM for EV components.
Replies: 39
Views: 4128

C-Tick/RCM for EV components.

I can buy a whole stack of off the shelf chargers, batteries, solar panels, displays, computers that are EMC shove them all in a box and everybody is happy. Not if you then sell that box. You are then the supplier of that product, and it needs to be C-Tick (now RCM) marked, which will involve EMC t...
by Tritium_James
Tue, 13 Aug 2013, 15:44
Forum: Technical and conversion discussion
Topic: C-Tick/RCM for EV components.
Replies: 39
Views: 4128

C-Tick/RCM for EV components.

All of our EV conversion customers in Europe (Netherlands, Germany for certain) have had to have their vehicles EMC tested to be able to get them registered. Probably only a matter of time before it's required here too... Bigmouse, an "RF device" as far as the EMC regs go is anything capable of emit...
by Tritium_James
Mon, 05 Aug 2013, 14:35
Forum: Batteries, charging, management and monitoring
Topic: Chademo
Replies: 22
Views: 2781

Chademo

Chademo plugs lock to the car with a solenoid driven by the charger. Someone can't unplug it while charging without hitting "Stop" on the charger first, or by the charger ending the charge cycle automatically. The "Stop" button may or may not be active based on card swipe, security settings, etc dep...