Search found 118 matches

by fuzzy-hair-man
Thu, 19 Feb 2009, 18:23
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

Weber: that's more like what I was thinking earlier less the coupling but with some sort of motor to shaft join in it's place. However the precision coupling would have to have a slide in sort of joint I'd think other wise I can't see how you'd be able to do the coupling up. http://forums.aeva.asn....
by fuzzy-hair-man
Tue, 17 Feb 2009, 23:56
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

In some rear wheel drives the propshaft must be free to slide axially relative to the gearbox as you go over bumps, hence the plain bearing. That's mine. The rear tail casing bearing is oil flooded and there is an oil seal to the rear of that. The slip-yoke has a polished outer surface that doesn't...
by fuzzy-hair-man
Tue, 17 Feb 2009, 22:37
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

Has anyone else used either of these, or can point us to other EV conversions that used the gearbox tail for direct drive, or have any thoughts on the matter? This is as close as I can get to using the gearbox tail for direct drive: http://www.electric7.com/IMG_2901.jpg from Birkin S3 kit Electric ...
by fuzzy-hair-man
Tue, 17 Feb 2009, 22:31
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

But using the gearbox tail casing requires a face mount anyway. Doesn't it? Yeah, I just hoped (depending on whether you needed to keep oil in there or not) that it might have been considerably simpler (like a flat piece of thick aluminium) which the gearbox tail bolts up to (the holes are there al...
by fuzzy-hair-man
Tue, 17 Feb 2009, 22:18
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

So a photo of Zeva's gearbox http://www.zeva.com.au/conversion_blog/large/4-gearbox-supported.jpg Where I mean is there's a join in the gearbox between where the jack is on the left and the brass gearbox drain plug, if you used the housing to the rear of that and mounted a aluminium plate on the fro...
by fuzzy-hair-man
Tue, 17 Feb 2009, 22:02
Forum: Technical and conversion discussion
Topic: Direct Drive: Mechanical issues
Replies: 48
Views: 7925

Direct Drive: Mechanical issues

I'm trying to stay with this discussion but having a bit of trouble... So there's a bearing near the slip yoke at the rear of the ICE gearbox this is usually fed oil from the gearbox and is not usually a sealed bearing hence it needs oil. You can't mount the shaft from the original gearbox (includin...
by fuzzy-hair-man
Fri, 13 Feb 2009, 21:45
Forum: General EV Discussion
Topic: Electric Shocks to charge batteries
Replies: 10
Views: 1068

Electric Shocks to charge batteries

The students developed a shock absorber that forces hydraulic fluid through a turbine attached to a generator. It is controlled by an active electronic system that optimizes damping to provide a smoother ride while generating electricity to recharge the battery or operate electrical equipment. Shou...
by fuzzy-hair-man
Wed, 11 Feb 2009, 23:46
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

# Apparently, electricity companies like hydro as it you need a relatively short time before you can increase output so it helps balance out spikes if you don't need it you turn off the taps. Yeah they love it. (I used to be in Pacific Power). The hydros smooth everything out. They also can pump wa...
by fuzzy-hair-man
Wed, 11 Feb 2009, 23:16
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

That gets to the problem that gets brought up about renewables that they aren't base load, ie when everyone turns on thier air conditioner the power company can't ask the sun to shine over thier solar panels Maybe it's different in other states, but an interesting thing I've noticed here in Perth i...
by fuzzy-hair-man
Wed, 11 Feb 2009, 21:28
Forum: Electric motors and controllers
Topic: Introductions & initial thoughts...
Replies: 16
Views: 2551

Introductions & initial thoughts...

Richo wrote: The controllers are liquid cooled.
They can be either air cooled or liquid cooled Image DMOC445 vrs DMOC445LC (Liquid cooled)
by fuzzy-hair-man
Wed, 11 Feb 2009, 18:26
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

EVs supporting the grid - considering the battery pack is the major expensive consumable in an EV, do you want your pack life diminished through grid cycling? Good point and it's one I didn't think about, I've only really heard V2G suggested and haven't really thought about the practicalities, perh...
by fuzzy-hair-man
Wed, 11 Feb 2009, 18:02
Forum: General EV Discussion
Topic: Field Day Mini
Replies: 20
Views: 1494

Field Day Mini

Hi Woody, Can you please explain the math behind your findings so I can try calculate other tyre options. To make the gearing better (more acceleration) you'd want smaller wheels/tyres that 10 inch which I don't think they exist for cars http://forums.aeva.asn.au/smileys/smiley5.gif The 4/s/s I am ...
by fuzzy-hair-man
Wed, 11 Feb 2009, 17:18
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

1 of the issues i see with EV's is the added pressure on the countries power grid. All you have to do is look at the massive strain that gets put on the national grid whenever theres a heatwave, this summer was a classic example. Now imagine for a moment if 1 of the major car makers released an EV ...
by fuzzy-hair-man
Thu, 05 Feb 2009, 18:55
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

It seems a little like the problem is that with petrol cars and transportation can be viewed in isolation, with electric cars we tie our emissions impact to that of the electricity producers. The green car initiative is limited to cars and probably can't make assumptions about how the electricity se...
by fuzzy-hair-man
Wed, 04 Feb 2009, 21:56
Forum: General EV Discussion
Topic: Green Car Innovation Fund
Replies: 57
Views: 4560

Green Car Innovation Fund

2) This is not for production; this is for preproduction, R&D, and proof of concept. It needs to feed into some production process that is not funded, and which benefits the environment and Australian industry. It seems this could include developing conversions of existing models or developing conv...
by fuzzy-hair-man
Tue, 03 Feb 2009, 19:04
Forum: Batteries, charging, management and monitoring
Topic: Power Consumption for Dummies
Replies: 144
Views: 16345

Power Consumption for Dummies

The ebay listing for the ping battery says: Rated Discharging Amperage: 20 Amps Max Continuous Discharging Amperage: 40 Amps Maximum Discharging Current (Peak): 60 Amps So that seems like it's rated discharge is 1C, it can continuously discharge at 2C, and has a maximum discharge of 3C. 60A x 36V = ...
by fuzzy-hair-man
Tue, 03 Feb 2009, 00:03
Forum: Batteries, charging, management and monitoring
Topic: Power Consumption for Dummies
Replies: 144
Views: 16345

Power Consumption for Dummies

...but what if its not 3.2 volts nominal per cell? i may be mistaken but it doesnt seem to say...it may be varied..the individual cells on sale there in the 10ah dont look the same as the ones in the case......but its a good spot to start Cell voltage should be the same for each chemistry of batter...
by fuzzy-hair-man
Fri, 30 Jan 2009, 21:11
Forum: General EV Discussion
Topic: Solid Mounting A Motor
Replies: 30
Views: 2009

Solid Mounting A Motor

I know I've vaguely said it before but.... have you seen some of the rwd minis on (the motors won't be much use but how they did the rear subframes could be useful): 16 value mini forums Do a search I found a couple but it seems there are lots more. and RWD motorbike and other powered minis Z Cars m...
by fuzzy-hair-man
Wed, 28 Jan 2009, 22:26
Forum: General EV Discussion
Topic: A possible design
Replies: 23
Views: 1825

A possible design

Question.... wouldn't a 9' in the lotus be quite suitable for direct drive ? The weight saved could be used on batteries. I thought that it would, but i did not find a suitable example to copy there set up that didnt use there gearbox. Not using it would make the set up easier as i can locate the m...
by fuzzy-hair-man
Thu, 22 Jan 2009, 23:20
Forum: General EV Discussion
Topic: Field Day Mini
Replies: 20
Views: 1494

Field Day Mini

Yeah I used to own a fairly over the top mini years ago, ported Cooper S head, stroked and bored 1275 out to 1360, nitrided crank, big cam etc. The torque steer was an absolute bitch. That’s why I like the idea of RWD. Yes I pretty much considered all sorts of weird and wonderful ideas back then in...
by fuzzy-hair-man
Thu, 22 Jan 2009, 20:54
Forum: General EV Discussion
Topic: Field Day Mini
Replies: 20
Views: 1494

Field Day Mini

Thanks for that moemoke... that went like I thought it would... makes me think a bigger engine and rear wheel drive would make a very interesting mini conversion. You've heard of Twinni Minis? (Twin engined minis) apparently the front subframe will fit in the back http://forums.aeva.asn.au/smileys/...
by fuzzy-hair-man
Mon, 19 Jan 2009, 23:09
Forum: Non-Branch areas
Topic: New England Enthusiasts Group
Replies: 12
Views: 5488

New England Enthusiasts Group

Fuzzy Actually, we have an electric lawn mower as well. And we gave our son an electric scooter at Christmas. I'd love to hear from your friend! So... When will we be seeing pictures of you in YOUR electric car??? http://forums.aeva.asn.au/smileys/smiley36.gif Oh that will be a Loooonnnng time off,...
by fuzzy-hair-man
Mon, 19 Jan 2009, 20:49
Forum: Non-Branch areas
Topic: New England Enthusiasts Group
Replies: 12
Views: 5488

New England Enthusiasts Group

Hey Christie, I saw your Capri when I was up home in Armidale (I grew up in Armidale) well done it looked very tidy, Well done! http://forums.aeva.asn.au/smileys/smiley16.gif I had a peek underneath but couldn't see much. Very good to see EV's in my home town http://forums.aeva.asn.au/smileys/smiley...
by fuzzy-hair-man
Sat, 17 Jan 2009, 01:55
Forum: Members Machines
Topic: Kearon's EV Capri
Replies: 121
Views: 18692

Kearon's EV Capri

I got some LED globes for my car. The red Brake/Tail lights are good and similar in brightness to original. The LED Indicator bulbs that I tried were no good though only lighting a small portion of the lense.    These use the standard 5mm leds right? Can you aim the leds in a different direction? i...
by fuzzy-hair-man
Wed, 07 Jan 2009, 20:54
Forum: Electric motors and controllers
Topic: AC motors, multipoles, torque
Replies: 549
Views: 65566

AC motors, multipoles, torque

Most of this topic (slip etc) seems over my head but I figure a manual ICE like handling of regen would be good even to the extent of having indexed slots on your regen pot box to simulate engine braking in various gears in the ICE. Then I thought direct drive would pose a safety challenge for this,...