Search found 492 matches

by bga
Fri, 11 Oct 2013, 19:12
Forum: Electric motors and controllers
Topic: adaptive magnetic flux array motor
Replies: 26
Views: 7917

adaptive magnetic flux array motor

That graph was a good demonstration of just how bad the low throttle losses are with the (big?) V6 motors. The sustainability argument is another entire topic. We have been experimenting with E-Bikes for weekend errands and visiting. The feeble-sounding 200 watt hub motor turns out to be very good a...
by bga
Fri, 11 Oct 2013, 03:35
Forum: Electric motors and controllers
Topic: adaptive magnetic flux array motor
Replies: 26
Views: 7917

adaptive magnetic flux array motor

Gravity... real or does the planet just suck?? [Went to see Gravity on the weekend. Surprisingly good for a hollywood production. We were happy to accept the odd physics omission and continuity failure in the interests of good story telling and cinematography] I think the point is that a conformodor...
by bga
Thu, 05 Sep 2013, 20:05
Forum: The Lounge
Topic: Solar (thermal) HWS vs PVs
Replies: 31
Views: 4616

Solar (thermal) HWS vs PVs

Summer is always a problem for PV - all batteries charged by 10AM and nowhere for the excess energy to go, save running an airconditioner.

by bga
Thu, 05 Sep 2013, 20:04
Forum: The Lounge
Topic: Solar (thermal) HWS vs PVs
Replies: 31
Views: 4616

Solar (thermal) HWS vs PVs

The numbers are a bit of fiction http://forums.aeva.asn.au/smileys/smiley1.gif It was more about a magnitude thought experiment. The storage tanks lose a lot if outside. My best guess is 3kwh per day. ~10MJ lost through the tank insulation! One issue would be the size of the collector needed. Again,...
by bga
Wed, 04 Sep 2013, 16:03
Forum: The Lounge
Topic: Solar (thermal) HWS vs PVs
Replies: 31
Views: 4616

Solar (thermal) HWS vs PVs

There is a good value suplier of evacuated tube solar water systems: RunOnSun in the sydney area and ships Australia wide. A friend has had one of these for severalyears with good results. I like the idea of PV solar, but the numbers aren't so good: Fundamental facts: Specific heat of water 4.87 Kj/...
by bga
Wed, 04 Sep 2013, 01:43
Forum: Mitsubishi
Topic: Head Room?
Replies: 6
Views: 1254

Head Room?

I only discovered the seat elevator the other day. Now I can look like a giraffe!
by bga
Sun, 02 Jun 2013, 05:19
Forum: General EV Discussion
Topic: the i-MiEV experience
Replies: 32
Views: 9886

the i-MiEV experience

Tuarn,

I moved the antenna out onto the dash. This made a big difference to the startup time.

I get the idea that the GPS unit doesn't store the ephemerus very well (at all?). It takes a long time to start up after a short time off. A hint may be that the clock freezes until the GPS gets a lock.
by bga
Mon, 27 May 2013, 17:21
Forum: General EV Discussion
Topic: Range 1000 mi, IF you stop every 200 mi for Water!
Replies: 3
Views: 768

Range 1000 mi, IF you stop every 200 mi for Water!

Sounds like a steam train!
This was about the regime with coal and water!
- all those towns across the Nullarbor (Rawlinna, Cook, Forrest etc) were for watering the trains.
by bga
Tue, 21 May 2013, 22:01
Forum: For Sale/Wanted
Topic: Wa Used 2010 imiev $24k + on roads, 9395km
Replies: 1
Views: 337

Wa Used 2010 imiev $24k + on roads, 9395km

Hi All,

Paceway Mitsubishi (Chris 9429 9460) has two on the lot this week:

2010, circa 10,000km,
$24990.
Dealer demos
by bga
Tue, 21 May 2013, 21:58
Forum: The Lounge
Topic: Wear more clothes when in an imiev
Replies: 2
Views: 761

Wear more clothes when in an imiev

And don't let rev-head motoring journalists anywhere near them. This guy must think he's Jeremy Clarkson testing a Tesla. ... On Empty at 31 Miles. ???! So far... Heater for about 5 minutes to warm the windscreen up first thing. Recirc on (a good mitsubishi feature) to keep the drafts down. Seat hea...
by bga
Tue, 21 May 2013, 21:23
Forum: The Lounge
Topic: Courtesy and consideration when public charging
Replies: 6
Views: 1265

Courtesy and consideration when public charging

Currently, it is a small club and I have not seen another vehicle on the PTA charge point. I currently use it for a) an 'executive' car bay b) to make the EV prominent in the car park. Only occasionally, is it necessary to make the next leg of the vehicle's tour possible. I think that 'not actively ...
by bga
Fri, 29 Mar 2013, 16:32
Forum: For Sale/Wanted
Topic: demo imiev Paceway Mitsubishi $24,990 + on roads
Replies: 6
Views: 732

demo imiev Paceway Mitsubishi $24,990 + on roads

At least one! It's only a bit more expensive than a $13,000 mirage!, so I suspect that consumers would usually choose petrol these days. Luckily it's not about the economics for some http://forums.aeva.asn.au/smileys/smiley1.gif . I am tempted to keep the wrap, but was a bit concerned that the adhes...
by bga
Fri, 29 Mar 2013, 02:25
Forum: For Sale/Wanted
Topic: demo imiev Paceway Mitsubishi $24,990 + on roads
Replies: 6
Views: 732

demo imiev Paceway Mitsubishi $24,990 + on roads

Bought it today!! It's in the AEVA family now. It was in a nice blue vinyl wrap that I would have been happy to have except that it was somewhat faded on the top surfaces, so I've had Paceway remove it while it will still come off, thus restoring the car to white. I'll get some other EV vinyl made f...
by bga
Mon, 18 Mar 2013, 23:33
Forum: Electric motors and controllers
Topic: adaptive magnetic flux array motor
Replies: 26
Views: 7917

adaptive magnetic flux array motor

Bit odd that they're talking trialling in a car and still using rendered images of the motor. Also, no brakes on the hub motor and the mount looks like something Michelin? proposed some time back! Richo makes the point that the motor they are showing is a hub motor, but the trial is on a commodore w...
by bga
Wed, 13 Mar 2013, 21:12
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 443
Views: 74467

Low cost BMS

Hi Arber333, Some more thoughts: Layout: ======= Hot side of the opto-coupler is very close the cold side tracks. Consider revising to maintain 5mm clearance. Maybe more leadins off the bolt holes so the washer can't cut the track so easily. Bypass shunt: ============ Use a SOT23 FET?, say NXP's PMV...
by bga
Sat, 02 Mar 2013, 19:28
Forum: EV Motoring
Topic: “Electric cars won’t save us” Article
Replies: 29
Views: 4643

“Electric cars won’t save us” Article

We should be wary of energy intensive solutions to, what is effectively, a planning failure. In Perth, the rail system works really well for city centre commuting, and is much less effective for suburb to suburb commutes, such as from wherever to UWA. This is because of the bus legs, which add 20 or...
by bga
Sat, 02 Mar 2013, 05:51
Forum: EV Motoring
Topic: “Electric cars won’t save us” Article
Replies: 29
Views: 4643

“Electric cars won’t save us” Article

Did anybody hear a report on the ABC today discussing fuel security. Apparently Australia as a total reserve of transport fuels in the order of 21 days. It wouldn't take much of a disruption to stop Australia in its tracks.
by bga
Sat, 02 Mar 2013, 05:36
Forum: EV Motoring
Topic: “Electric cars won’t save us” Article
Replies: 29
Views: 4643

“Electric cars won’t save us” Article

Some of my dodgy pennies... The report makes a a telling point; that Australian cities are some of the most car dependent in the world. Rivaling the USA where enforced car culture has been on the agenda for 50 or more years is not very flattering and points to serious future problems. Undoubtedly, t...
by bga
Sun, 17 Feb 2013, 01:25
Forum: The Lounge
Topic: Presenting the Turbo Encabulator
Replies: 5
Views: 1073

Presenting the Turbo Encabulator

How could I have missed this important transmission announcement??

the Turbo Encabulator video

A better version:
a better Turbo Encabulator video
(expanded description)

Enjoy!
by bga
Thu, 08 Nov 2012, 15:23
Forum: General EV Discussion
Topic: Golden motors
Replies: 1
Views: 778

Golden motors

by bga
Wed, 31 Oct 2012, 17:34
Forum: Batteries, charging, management and monitoring
Topic: One for the BMS-o-philes
Replies: 38
Views: 6755

One for the BMS-o-philes

hey Chris,
Like the bus bar arrangement!


The 9.9mm could be accommodated by shimming every 2nd or 3rd cell with a thin sheet of plastic such that the cells line up nicely.

Cheers
by bga
Tue, 23 Oct 2012, 20:07
Forum: General EV Discussion
Topic: Holden Volt - Charging Cable Limited To Six Amps.
Replies: 53
Views: 7747

Holden Volt - Charging Cable Limited To Six Amps.

6 Amps - does this point to some sort of hyper-conservatism on the part of GM?

I would have expected 10 amps, being the common draw for heaters and the like that operate reliably across the country.
by bga
Wed, 17 Oct 2012, 18:23
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 27378

Questions on Elcon/TC chargers

The charger's control jack (connector) is referenced to the negative battery lead, so this needs to be considered in any design. The charger supplies a low current 12V source to enable controlling the charge enable line. As far as I know, all models of the charger talk a TTL (non-RS232) async serial...
by bga
Tue, 16 Oct 2012, 20:55
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 27378

Questions on Elcon/TC chargers

Just a voltage divider - the power will be less because the voltage is lower, so the same size will be OK
by bga
Tue, 16 Oct 2012, 19:50
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 27378

Questions on Elcon/TC chargers

Halving the output voltage should be easy with the above procedure.

One issue will be that the current will be the same, so it will become a 750 watt charger.

cheers