Search found 3692 matches

by Richo
Fri, 25 Jul 2008, 05:45
Forum: General EV Discussion
Topic: Myth busters....?
Replies: 5
Views: 775

Myth busters....?

Good one heard today

8. Lithium batteries aren't rechargable.
by Richo
Thu, 24 Jul 2008, 08:18
Forum: Batteries, charging, management and monitoring
Topic: Hi Power Batteries
Replies: 53
Views: 8986

Hi Power Batteries

woody wrote:wow that 22kW motor is heavy.


Mmmm and I'm gunna try it in a '86 BMW 318i.
A bit of Tardis technology and it will all fit in piece of cake!
The worst part is all that oil leaking out everywhere before the conversion even begins!
by Richo
Thu, 24 Jul 2008, 06:17
Forum: Technical and conversion discussion
Topic: My dilemma: Car choice
Replies: 16
Views: 1997

My dilemma: Car choice

On the plus side some places will give $3 per lead batt when dead!
by Richo
Wed, 16 Jul 2008, 03:09
Forum: General EV Discussion
Topic: Overall Initial Calculations
Replies: 20
Views: 2159

Overall Initial Calculations

Ahh can't you select on your energy bill to use green energy?
You must live in the wrong state.
Pay for green energy and the power to drive your car comes from wind etc...
by Richo
Tue, 15 Jul 2008, 05:38
Forum: General EV Discussion
Topic: Overall Initial Calculations
Replies: 20
Views: 2159

Overall Initial Calculations

A battery is just a storage device. You could pump water up a hill when you have surplus power and then generate power when you let it come down again. (the height becomes the stored potential energy) That doesn't require a battery manufacturer. Bit nicer than living on a salt pond. Same theory for ...
by Richo
Tue, 15 Jul 2008, 05:02
Forum: Batteries, charging, management and monitoring
Topic: Prices for LiFePo4 Batteries
Replies: 9
Views: 3303

Prices for LiFePo4 Batteries

Don't forget to take the spaces out when you make a hyper link or it won't work.
http://thebackshed.com/foundryandfibreglass/
by Richo
Tue, 15 Jul 2008, 04:54
Forum: General EV Discussion
Topic: Looking for info
Replies: 37
Views: 3095

Looking for info

Hope they have a picture explaining that one...
by Richo
Tue, 15 Jul 2008, 04:47
Forum: General EV Discussion
Topic: Overall Initial Calculations
Replies: 20
Views: 2159

Overall Initial Calculations

Ahhh without tyre size can't work it out.
Gear ratios would help too.
by Richo
Sun, 13 Jul 2008, 00:33
Forum: Technical and conversion discussion
Topic: Regenerative braking
Replies: 55
Views: 12020

Regenerative braking

The motor factors are calculated every PWM cycle eg 20kHz
I had a look at the "Open source" inverter and I will be ignoring it.
See u on wed
by Richo
Sun, 13 Jul 2008, 00:26
Forum: General EV Discussion
Topic: gimik ev mods
Replies: 6
Views: 805

gimik ev mods

I was thinking of an under dash microwave so I can cook my lunch on the go.
But nothing beats a boot mounted beer fridge.
by Richo
Sat, 12 Jul 2008, 07:22
Forum: Technical and conversion discussion
Topic: Regenerative braking
Replies: 55
Views: 12020

Regenerative braking

Would be quicker if I had a look at your setup for that extra inspiration... Half cycles - thats a lot of sleeping for a controller! http://forums.aeva.asn.au/smileys/smiley36.gif No orders until I have mine working nice in my eV and field tested in another eV with feedback for design issues/improve...
by Richo
Sat, 12 Jul 2008, 06:48
Forum: AEVA SA Branch
Topic: EV in progress
Replies: 25
Views: 7564

EV in progress

Thanks Cometboy. I'm curious, what does the $1700US turn into once it's landed at your door? https://www.zeva.com.au/store.php?product=34 AUD$2365 at the door. Zeva is the local distributor you won't get it quicker or cheaper by going direct. The link in a previous post prob did not work because yo...
by Richo
Sat, 12 Jul 2008, 06:37
Forum: Technical and conversion discussion
Topic: Regenerative braking
Replies: 55
Views: 12020

Regenerative braking

This is why I was working on my own VFD, going the analogue route (most likely folly, but I'm more interested in if it would work, not if it'd be practical :P Mmmm I still think it won't work in an analogue format. Anyway I have been looking at digital and I think it is the most practical option. I...
by Richo
Sat, 12 Jul 2008, 06:03
Forum: General EV Discussion
Topic: dc motor/dc generator,
Replies: 12
Views: 1361

dc motor/dc generator,

yeah remove the electronics from the broken drill and it should work fine.
by Richo
Sat, 12 Jul 2008, 05:49
Forum: General EV Discussion
Topic: Must read article from 1915. Charles P. Steinmetz
Replies: 5
Views: 957

Must read article from 1915. Charles P. Steinmetz

you'll need a 15kW alternator/generator to keep you going around 100km/hr - roughly depending on vehicle. Car alternators are about 1.3kW for comparison. UPS 15kW LPG Generator for comparison An Aluminium 15kW 2pole 3-phase induction motor would be about 85kg. You would need to connect this to the L...
by Richo
Sat, 12 Jul 2008, 04:49
Forum: General EV Discussion
Topic: The EV pledge
Replies: 27
Views: 2698

The EV pledge

Striker wrote:Unless someone's hiding an EV with 2000k range that I'm not aware of :P


Ian's next project light truck with 600,000Wh pack.(234 x 3.2V 800Ah)
Image

by Richo
Sat, 12 Jul 2008, 04:33
Forum: General EV Discussion
Topic: dc motor/dc generator,
Replies: 12
Views: 1361

dc motor/dc generator,

A battery powers a 12V cordless drill. That drill is directly connected to another 12V cordless drill that is broken. The second cordless drill prodcues VOLTAGE at the motor terminals relative to the speed of the chuck which is turned by the first drill. You will not get VOLTAGE back to where the se...
by Richo
Wed, 09 Jul 2008, 04:06
Forum: General EV Discussion
Topic: ac motor info
Replies: 16
Views: 1659

ac motor info

Forklift motors are series DC usu. You won't need anything that big (12") for a VW. He has lots of torque and no speed - no suprise since it was designed for a forklift. Bet he gets real crap economy too. A golf cart has low speed and low torque. When was the last time you saw a colf cart take off f...
by Richo
Tue, 08 Jul 2008, 06:11
Forum: General EV Discussion
Topic: hybrid
Replies: 6
Views: 688

hybrid

http://greenhybrid.com/discuss/
http://www.hybridcar.com/SMF/
Sorry no Australian ones.

What format were you thinking series/parallel?
integrated or a trailer?
lpg/petrol?
by Richo
Tue, 08 Jul 2008, 05:47
Forum: Technical and conversion discussion
Topic: Ev Kombi????
Replies: 13
Views: 3181

Ev Kombi????

I like it...
Additional features "AM/FM cassette"
That's keepin it "Classic" Image

Damn my wife saw me looking at one now she want's one!
Might have to record classic VW engine sounds on a Cassette for that Authentic Combi feeling.
by Richo
Tue, 08 Jul 2008, 05:35
Forum: Batteries, charging, management and monitoring
Topic: Battery Cycles
Replies: 13
Views: 2186

Battery Cycles

Hmmm.... 200Wh/km is about 130km/hr for a '88 Toyota corolla. That's a lot of speeding fines - Don't forget to add that to the cost! Specs-> Cd=0.31, fA=2.25m^2, m=1000kg, Cr=0.015 150Wh/km would be a bit more realistic. The 1000-1500 cycles was a conservative figure to start - no point saying they ...
by Richo
Tue, 08 Jul 2008, 04:28
Forum: Technical and conversion discussion
Topic: Ev Kombi????
Replies: 13
Views: 3181

Ev Kombi????

Type3: Hmmm the gearbox looks like it is incorporated into the diff. So at a guess I would say you have to keep the box/diff. Direct drive would be quite complicated at a guess. Most electric motors would be smaller than the petrol engine so should fit in ok - someone would have to get the length of...
by Richo
Tue, 08 Jul 2008, 04:20
Forum: Technical and conversion discussion
Topic: Ev Kombi????
Replies: 13
Views: 3181

Ev Kombi????

by Richo
Tue, 08 Jul 2008, 04:11
Forum: Technical and conversion discussion
Topic: Ev Kombi????
Replies: 13
Views: 3181

Ev Kombi????