Search found 179 matches

by juk
Wed, 06 May 2009, 18:19
Forum: General EV Discussion
Topic: 4WD EV
Replies: 18
Views: 3027

4WD EV

You guys know the relationships between speed and load for an electric motor better than I. You know that when load changes so does the speed for a given input power. You know that given two motors, two controllers and the same duty though through two separate drive mechanisms, that they will adapt ...
by juk
Wed, 06 May 2009, 09:43
Forum: General EV Discussion
Topic: 4WD EV
Replies: 18
Views: 3027

4WD EV

I presume the supposition of different wheel speeds comes from the application of different torques, however whilst the road is connecting the wheels (and the chassis) the only manner in which you can have different wheel speeds is in the case of a loss of traction. The only way in which a loss of t...
by juk
Wed, 06 May 2009, 01:50
Forum: General EV Discussion
Topic: 4WD EV
Replies: 18
Views: 3027

4WD EV

Before i get carried away with my frustration can you explain how you get sudden and minute variances in torque that are sufficient to either compress or stretch a car or cause it to break traction spontaneously? Can you further describe how the variances are sufficiently large enough in magnitude t...
by juk
Tue, 05 May 2009, 20:29
Forum: General EV Discussion
Topic: 4WD EV
Replies: 18
Views: 3027

4WD EV

"I think you would need something to compensate for front/rear speed variations"

Dude, if you have front to rear speed variations, then you're either ripping your car apart or compressing it. There are no front to rear speed variations for the rest of us.
by juk
Sat, 02 May 2009, 06:42
Forum: Technical and conversion discussion
Topic: Accelerator Pedal Sensors
Replies: 41
Views: 5295

Accelerator Pedal Sensors

Johny, that's definitely a side mount pedal. not that that should be a problem, you just need a L bracket. Having worked in the wrecking industry, and never once sold anyone a pedal, except for when someone was turning an auto into a manual or vice versa i reckon you could pick one up pretty cheap. ...
by juk
Thu, 30 Apr 2009, 22:38
Forum: Technical and conversion discussion
Topic: Accelerator Pedal Sensors
Replies: 41
Views: 5295

Accelerator Pedal Sensors

How about a fly by wire pedal assembly from a suitable donor?
by juk
Fri, 24 Apr 2009, 06:14
Forum: General EV Discussion
Topic: EEStore Patent Approved
Replies: 23
Views: 4560

EEStore Patent Approved

From Green car Congress 22/04/2009: EEStor, Inc. issueda short press release announcing that a third-party has certified that EEStor’s patented and patent pending Composition Modified Barium-Titanate Powders have met and/or exceeded a relative permittivity of 22,500. In the few public statements mad...
by juk
Fri, 10 Apr 2009, 01:11
Forum: EV Motoring
Topic: iMiev passed all 83 safety tests
Replies: 57
Views: 7808

iMiev passed all 83 safety tests

I registered my interest on their website, got a return email: Dear Sir We acknowledge receipt of your recent enquiry regarding the i MiEV. Please be advised that Mitsubishi Motors Corporation Japan (MMC) is committed to the continuing research and development of alternative fuel, environmentally aw...
by juk
Fri, 10 Apr 2009, 00:29
Forum: General EV Discussion
Topic: EV ideas.
Replies: 9
Views: 988

EV ideas.

Hoverboards? Too complicated, too far out and too expensive. What the world really needs is the Scarpar. Said device is an off-road powerboard that just moved on from the concept stage to engineering. Its creators have thrown together an absolutely sick video (after the break) which showcases all th...
by juk
Mon, 06 Apr 2009, 23:47
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 339263

Weber and Coulomb's MX-5

Might as well bolt an outboard to the back of Andrew's; it might as well look like a boat if it's going to handle like one.
by juk
Sat, 04 Apr 2009, 06:19
Forum: Batteries, charging, management and monitoring
Topic: Battery Chargers
Replies: 9
Views: 3117

Battery Chargers

This is the best 12V battery charger there is: http://www.ctek.com/EN-GB/MULTI-XS-25000.aspx?p=technical I brought one back from Sweden for a mate of mine to run his fridge from. Specs: TECHNICAL SPECIFICATIONS MODEL      MULTI XS 25000 Input voltage AC      220-240VAC, 50-60Hz Output voltage      N...
by juk
Thu, 02 Apr 2009, 06:26
Forum: Batteries, charging, management and monitoring
Topic: US wiring Specs released
Replies: 0
Views: 642

US wiring Specs released

USCAR'S EWCAP ISSUES NEW SPECIFICATIONS THAT HELP HYBRIDS AND ELECTRIC VEHICLES 'CONNECT' Detroit Three research group issues three new SAE/USCAR specifications SOUTHFIELD, Mich., March 31 – The United States Council for Automotive Research LLC (USCAR) Electrical Wiring Component Application Partner...
by juk
Fri, 27 Mar 2009, 06:43
Forum: Technical and conversion discussion
Topic: Something NOT to do
Replies: 5
Views: 1005

Something NOT to do

Soak the shirt and yourself in iron II Sulphate. Add in a touch of peroxide if you like. Might stain everything brown however. You could try copper I sulphate for a greeny/blue tinge that's much more likely to wash out.
by juk
Tue, 24 Mar 2009, 08:18
Forum: EV Motoring
Topic: i-MiEV at the Melbourne Motor Show...
Replies: 14
Views: 2008

i-MiEV at the Melbourne Motor Show...

Kiwi's test driving the MiEV. Choice they reckon, seven youtube vids included (that's one more than sux, eh?)

http://www.autobloggreen.com/2009/03/23 ... -w-videos/
by juk
Wed, 18 Mar 2009, 10:24
Forum: Batteries, charging, management and monitoring
Topic: Exchange rates and Thundersky batteries
Replies: 23
Views: 3156

Exchange rates and Thundersky batteries

July 21 2005 (Bloomberg) -- China ended its decade-old peg to the dollar and said it will let the yuan fluctuate versus a basket of currencies, responding to criticism from the U.S. and Europe that its currency was undervalued. The new yuan rate strengthens the currency by 2.1 percent to 8.11 per U....
by juk
Tue, 17 Mar 2009, 10:23
Forum: General EV Discussion
Topic: CINHESE NEW EV WANT TO BE IMPORT TO AUSTRALIA
Replies: 30
Views: 2775

CINHESE NEW EV WANT TO BE IMPORT TO AUSTRALIA

"The 3 figures of RANGE, PRICE and WEIGHT don't go together in this setup."

But y'see it's not a price, it's a date.
"price:5000AD "
and it's nearly 3000 years into the future.

by juk
Fri, 13 Mar 2009, 06:33
Forum: Members Machines
Topic: Toyota Corolla Conversion
Replies: 128
Views: 20952

Toyota Corolla Conversion

You have probably done this already, but I'll suggest it anyhow. Have you changed the oil in the Gearbox? Did you change to a lighter or heavier oil?? P.S. I was not well today so I didn't make it up your way, sorry for not calling. On that subject the oil should probably be a lighter oil since the...
by juk
Thu, 12 Mar 2009, 22:04
Forum: Batteries, charging, management and monitoring
Topic: 100 fold improvement of LiPO discharge rates
Replies: 14
Views: 2849

100 fold improvement of LiPO discharge rates

Also from the same paper: A battery research group out of MIT and led by Dr. Gerbrand Ceder just published remarkable research findings in the journal Nature. The scientists were able to develop a new formulation of lithium iron phosphate that allows for extremely rapid charging, and massive specifi...
by juk
Thu, 12 Mar 2009, 22:01
Forum: Batteries, charging, management and monitoring
Topic: 100 fold improvement of LiPO discharge rates
Replies: 14
Views: 2849

100 fold improvement of LiPO discharge rates

Lithium batteries charge ahead Researchers demonstrate cells that can power up in seconds. Geoff Brumfiel Coated electrodes allow lithium-ion cells to charge up in secondsGetty Two researchers have developed battery cells that can charge up in less time than it takes to read the first two sentences ...
by juk
Thu, 12 Mar 2009, 19:40
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 339263

Weber and Coulomb's MX-5

The tie rod end IS a ball joint.
by juk
Thu, 12 Mar 2009, 08:43
Forum: Batteries, charging, management and monitoring
Topic: Ponilion's LiFePo4,5-33C LiPolymer battery
Replies: 118
Views: 18113

Ponilion's LiFePo4,5-33C LiPolymer battery

HeadsUp wrote: gpsnettrack , are you talking about Admiralty Resources ?


Admiralty resources sold out their lithium to a Panamanian shell company from memory. I wouldn't be the least surprised if it was director owned either, through the requisite number of trusts no doubt.
by juk
Thu, 12 Mar 2009, 01:52
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 339263

Weber and Coulomb's MX-5

Lads, i've done hundreds of these like this when i used to work as a mechanic. It is the proper way to do it without using a press. If you hit the thread you risk damaging the thread and the ball joint itself. The thread is meant to maintain constant pressure not impact pressure and you risk stressi...
by juk
Wed, 11 Mar 2009, 06:59
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 339263

Weber and Coulomb's MX-5

I guess it was a fairly standard install, but it sure taxed us all the way. Without the proper tool, it took a lot of "drifting" (whacking with a hammer) to separate the steering rod from the steering nuckle. We found that supporting the steering rod on a hydraulic jack helped. The steering rods ar...
by juk
Mon, 09 Mar 2009, 20:39
Forum: Electric motors and controllers
Topic: How Does Regeneration Work
Replies: 46
Views: 6515

How Does Regeneration Work

Surely this must upset the brake balance. Is there any adjustment made in the brake bias? How legal is it?


We're lucky we don't get snow here.
by juk
Sat, 07 Mar 2009, 05:21
Forum: Electric motors and controllers
Topic: adding a 'sort of' turbo
Replies: 17
Views: 2441

adding a 'sort of' turbo

"I don't think nitrogen is that safe when exposed to anything slightly warmer than a badgers freshly laid turd."

Nitrogen comprises 78% of the earths atmosphere as molecular nitrogen. Stable as.