Search found 66 matches

by MikeG
Fri, 11 Dec 2009, 21:34
Forum: AEVA ACT Branch
Topic: Canberra Branch Xmas BBQ
Replies: 0
Views: 870

Canberra Branch Xmas BBQ

Peter Weissmann has been so gracious as to offer his home for the end of year BBQ. Food & Softdrinks will be provided, BYO alcohol and snacks. Please RSVP using the POLL. If you're not sure, then don;t do the poll until the day before the event. If you're still unsure on Saturday 19th then vote unsu...
by MikeG
Sat, 31 Oct 2009, 01:27
Forum: Technical and conversion discussion
Topic: Luxo Sequential Hybrid Project
Replies: 14
Views: 2013

Luxo Sequential Hybrid Project

How did the ABB motor price? Finish stuff usually isn't cheap.
by MikeG
Sat, 31 Oct 2009, 01:14
Forum: Technical and conversion discussion
Topic: Luxo Sequential Hybrid Project
Replies: 14
Views: 2013

Luxo Sequential Hybrid Project

Trick is which has more area under the power curve. I've been modifying performance cars for a while now, and although people toss on about peak power, it's really the area under the curve that makes a car drivable... They have a name for a car with huge peak power and most of it in a tight power ba...
by MikeG
Sat, 10 Oct 2009, 23:37
Forum: Technical and conversion discussion
Topic: Luxo Sequential Hybrid Project
Replies: 14
Views: 2013

Luxo Sequential Hybrid Project

I'm noting that a 1997 Audi A8 with double glased windows goes for around $16000... I've also estimated the cost of headways (500 batteries) to be around US$7500 which would be capable of bursts of up to 170kW - not bad... I've also seen a 65kW genset for around $11K which would fit nicely onto a tr...
by MikeG
Sat, 10 Oct 2009, 22:10
Forum: Technical and conversion discussion
Topic: Luxo Sequential Hybrid Project
Replies: 14
Views: 2013

Luxo Sequential Hybrid Project

Thanks guys. The advice is great, and I had a sanity-check with a good mate of mine, and he's talked me toward a smaller genset and more batteries. Also the ACP iZero is actually a 200kW motor from what I've read on the website. I'll look into the headways. By the way, the Festival was more work tha...
by MikeG
Thu, 08 Oct 2009, 01:27
Forum: Technical and conversion discussion
Topic: Luxo Sequential Hybrid Project
Replies: 14
Views: 2013

Luxo Sequential Hybrid Project

I've been on the sidelines for a while, watching, learning, listening & thinking about what conversion would be best for me. I'd like to build something akin to a Tesla (based on a late model RX-7 or Nissan Sports Car) but without a huge bank balance, that doesn't seem overly practical. I've also lo...
by MikeG
Mon, 01 Jun 2009, 15:36
Forum: Technical and conversion discussion
Topic: Honda Integra Si 1989 conversion
Replies: 1
Views: 613

Honda Integra Si 1989 conversion

Hi. I have sourced a 1989 Honda Integra Si Automatic, which is in good condition except for the IC Engine which has a serious bottom end knock. I'm looking for suggestions for the conversion. (its not going to be a high performance conversion) I am leaning towards an AC motor and controller, as thes...
by MikeG
Fri, 27 Mar 2009, 15:51
Forum: General EV Discussion
Topic: EV run to Canberra.. from Perth?
Replies: 39
Views: 3996

EV run to Canberra.. from Perth?

Turbos usually get better efficiency on the highway than n/a. Even though the turbo isn't running real boost, it does seem to increase the thermal efficiency of the engine at highway cruising speeds and loads. My old turbo Silvia also got 7L/100km on the highway, and I could only manage 7.2L/100km ...
by MikeG
Thu, 12 Mar 2009, 20:48
Forum: General EV Discussion
Topic: Another newbie joining the EV enthusiasts ranks
Replies: 15
Views: 2034

Another newbie joining the EV enthusiasts ranks

How much did the AC-150 cost? I'm looking at one of these also...
by MikeG
Fri, 27 Feb 2009, 16:13
Forum: General EV Discussion
Topic: EV run to Canberra.. from Perth?
Replies: 39
Views: 3996

EV run to Canberra.. from Perth?

onboard or trailer gensets would be easier and cheaper guys. My concern with this is that it's a bit hypocritical.. It's basically turning the EV into a hybrid, but gensets are (usually) much less efficient and less clean than ICEs in production vehicles, and towing a trailer in itself sucks up ene...
by MikeG
Thu, 26 Feb 2009, 17:20
Forum: General EV Discussion
Topic: EV run to Canberra.. from Perth?
Replies: 39
Views: 3996

EV run to Canberra.. from Perth?

Train is cheaper (and includes driver passage) BUT only goes to Adelaide or Sydney, then you need to drive at least 300km to Canberra (more from Adelaide).
by MikeG
Thu, 26 Feb 2009, 17:12
Forum: General EV Discussion
Topic: EV run to Canberra.. from Perth?
Replies: 39
Views: 3996

EV run to Canberra.. from Perth?

onboard or trailer gensets would be easier and cheaper guys. BTW I've got some preliminary prices on trucking EVs from Perth to Canberra - you're looking at $700 insured (not bad). We will have to wait until early July to get firm quotes though... And there may be room for bulk discounts (if we can ...
by MikeG
Mon, 02 Feb 2009, 22:39
Forum: Batteries, charging, management and monitoring
Topic: Power Consumption for Dummies
Replies: 144
Views: 15915

Power Consumption for Dummies

If you don't mind me asking, what did the battery set you back? Does it include a charger?
by MikeG
Wed, 03 Dec 2008, 17:54
Forum: General EV Discussion
Topic: Agassi's plan neglects Canberra
Replies: 8
Views: 835

Agassi's plan neglects Canberra

Was Tassie included? I note that Tasmania is missing off the Australia image to the right on this page . Everyone knows they don't have cars in Tasmania, just horse drawn carts and bicycles... ;) http://www.news.com.au/couriermail/story/0,23739,24541248-5012321,00.html No sign of Tassie in the line...
by MikeG
Wed, 03 Dec 2008, 17:38
Forum: General EV Discussion
Topic: Agassi's plan neglects Canberra
Replies: 8
Views: 835

Agassi's plan neglects Canberra

Canberra suffers the fate of Australia's lowest population mainland Capital City of only ~300,000 people. The transitary population (visitors, politicians and contractors) are not counted of course. Newcastle is bigger... I guess macquarie & AGL have to think of their profits, the good be damned...
by MikeG
Wed, 03 Dec 2008, 16:35
Forum: General EV Discussion
Topic: Agassi's plan neglects Canberra
Replies: 8
Views: 835

Agassi's plan neglects Canberra

The deal struck with Macquarie and AGL plans to roll out plugin EV recharge stations everywhere BUT Canberra. Copy of my note sent to www.betterplace.com: "Dear Mr Agassi, I note that the Australian announcement for recharge stations excludes the nation's capital Canberra. There are more cars on Can...
by MikeG
Mon, 01 Dec 2008, 17:59
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

Sounds good. My only concerns with that approach (and that can be worked around several ways) is that if power is lost for whatever reason, you have no brakes. You've hit the nail on the head. Not only can it use regen but DC injection and motor revese independantly on each wheel. The list of featur...
by MikeG
Mon, 01 Dec 2008, 17:56
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

All the power figures for the hub motors are PER WHEEL, right? The power levels sound monsterous and I can only dream of a battery system advanced enough to support this sort of peak power.   Especially in a 4-wheel driven case. Anything beyond ~100kW per wheel is going to be in supercar territory (...
by MikeG
Mon, 01 Dec 2008, 17:36
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

Don't hub-motor cars do away with the HEAVY disk rotors, and rely on the motors to provide the braking force? Makes sense to me... By loading up the motors for regen, I wonder what sort of braking force can be applied, and if you can impart some sort of active brake control for ABS-like performance....
by MikeG
Mon, 01 Dec 2008, 17:00
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

This begs the question, how would you program oversteer characteristics into such a design. As you know, racing vehicles tend to harness oversteer to enhance cornering. Many driving enthusiests ask the same (even in FWD's with lift-off oversteer), so the only way this would interest me is if such a ...
by MikeG
Thu, 27 Nov 2008, 15:31
Forum: AEVA ACT Branch
Topic: EV Run to Canberra AGM 2009
Replies: 90
Views: 25413

EV Run to Canberra AGM 2009

Maybe we could get a bulk deal on gen set trailers for club members...

Does someone know of a company who can put a design into production? is there something already available?

Mike
by MikeG
Tue, 25 Nov 2008, 15:08
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

Don't be fooled by the sales blurb of a wiki. Rotating mass (of say a drive shaft) is of little consequence to efficiency and consumes no power when cruising anyway. The drive shaft inertia is maybe 0.1% or less compared with the vehicles inertia. It is gears first and CVs then bearings in that ord...
by MikeG
Mon, 24 Nov 2008, 20:49
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

A gearbox insitu in a FWD has less losses than a RWD setup due to less rotating mass for starters... There's no drive shaft in a FWD... This from my own motor racing, performance modifications & general automotive experience... But there are other references to this: "Improved drivetrain efficiency:...
by MikeG
Mon, 24 Nov 2008, 16:59
Forum: Technical and conversion discussion
Topic: Hipo AWD project
Replies: 89
Views: 7351

Hipo AWD project

Comparing engine Dyno results to rolling road dyno results a 2WD transmission has a 30% power loss between flywheel and tire while a 4WD transmission has a 40% loss. This is why there is so much interest in Wheel Motors for EVs. It might be worth considering the fact that FWD has less losses than R...
by MikeG
Tue, 18 Nov 2008, 19:27
Forum: For Sale/Wanted
Topic: Wanted: ~20Ah battery
Replies: 13
Views: 998

Wanted: ~20Ah battery

I've been told that induction motors don;t like cheap modified sine wave inverters, so you need a true sine wave inverter which could be quite expensive.