Search found 985 matches

by Electrocycle
Tue, 25 Jan 2011, 02:27
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

http://forums.aeva.asn.au/uploads/350/UniversalWatt.jpg Are the two mounting tabs in the middle geared together or something? It looks like they might just have a pin / bolt in the middle to allow then to move in and out but not side to side. I think the traditional design on the back of the diff w...
by Electrocycle
Mon, 24 Jan 2011, 22:55
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

Since the front pivot point is connected to the chassis it will have the lowest vibration. I'd just rigidly mount the motor to the trailing arm. I think the top arm will make things more difficult. At the diff moves up and down it will pull the top of the diff forward and back relative to the lower ...
by Electrocycle
Sun, 23 Jan 2011, 16:53
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

The motor sits too low for the pivot to go under it. The pivot would go in front of the motor, probably close to the vertical centre. Electrocycle what about when it wheelstands?, I am thinking the top two arms are going to help stabilise it. How high will it wheelstand? Are you having wheelie bars...
by Electrocycle
Sun, 23 Jan 2011, 12:58
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

ah yes, by having upper and lower arms the motor will tilt less, which means the whole motor moves up and down about as much as the diff.

If there is only one arm (one pivot point in front of the motor), the front of the motor barely moves, while the rear will see ~50% of the axle movement.
by Electrocycle
Sun, 23 Jan 2011, 01:39
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

The watts link will do a better job than angled arms though, so you don't need the top arms at all.
by Electrocycle
Sun, 23 Jan 2011, 01:14
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

I'd get rid of the top bars entirely, and make your additional bars in the picture go as far forward as possible to triangulate the trailing arm.

Then run a watts link on the back of the diff and you have maximum available movement with nothing to bind or have funny geometry issues.
by Electrocycle
Sat, 22 Jan 2011, 17:17
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

I think an independent rear end would be easier to fit into the frame and fully isolate the motor, but there's already been a large investment made in the diff, etc... What if you reduced the suspension setup to one pivot point, preferably close to the centre of the front of the motor? You could hav...
by Electrocycle
Fri, 21 Jan 2011, 13:49
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

what I would be worried about is that with different length arms and the angled upper arms, when one wheel is raised the upper and lower lengths will change by different amounts, which with push / pull the top of the diff, rotating it around the axle. Since the motor is solidly mounted to the front ...
by Electrocycle
Tue, 18 Jan 2011, 22:51
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

ok that's getting to be pretty much what I was talking about, but the engine mount at the front won't be as good as a rose joint I think (from the point of view of keeping the axle pointed straight ahead). I would try to make the top arms pivot at the same point as the lower ones, and they may even ...
by Electrocycle
Tue, 18 Jan 2011, 04:07
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

you could also make the lower control arms into a wishbone with a single pivot at the front - and motor supports. If you have a watts link at the back you don't need two mounts at the front - and if the lower arms are triangulated it will stop the axle being turning left or right (ie one wheel being...
by Electrocycle
Tue, 18 Jan 2011, 01:48
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

if the shocks are near the front of the motor, and the front of the trailing arms, there will be very little difference in the end result - but much less complexity.
The front of the control arms don't move much relative to the chassis, or diff.
by Electrocycle
Tue, 18 Jan 2011, 00:33
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

couldn't your motor support cradle be the lower trailing arms? You can have the motor supported on the small shocks attached to the arms. If the shocks are mounted on a stud like they are in a suspension setup they'll allow for the fwd/back movement as well. I think you'll definitely need a watts li...
by Electrocycle
Sat, 15 Jan 2011, 23:37
Forum: General EV Discussion
Topic: Frazer-Nash from Sydney?
Replies: 7
Views: 2385

Frazer-Nash from Sydney?

hmmm, bit of a hike from sydney!

Still, could be interesting :)
by Electrocycle
Sat, 15 Jan 2011, 05:38
Forum: The Lounge
Topic: Tritium factory and the floods of 1974 and 2011
Replies: 11
Views: 2691

Tritium factory and the floods of 1974 and 2011

good to hear you're not having to wring out a bunch of wavesculptors!
by Electrocycle
Sat, 15 Jan 2011, 05:32
Forum: General EV Discussion
Topic: Frazer-Nash from Sydney?
Replies: 7
Views: 2385

Frazer-Nash from Sydney?

where is it?

might be worth checking out. I think they had a 6" or 8" ADC motor from memory?
by Electrocycle
Fri, 14 Jan 2011, 13:54
Forum: Members Machines
Topic: EV,LANDROVER
Replies: 25
Views: 4969

EV,LANDROVER

it really depends on what voltage you need.
25uF is not really a common size now, but you can get close.
by Electrocycle
Fri, 14 Jan 2011, 13:43
Forum: The Lounge
Topic: Tritium factory and the floods of 1974 and 2011
Replies: 11
Views: 2691

Tritium factory and the floods of 1974 and 2011

hope the rent doesn't go up after this!
A bit of elevation is going to be worth a bit more now I think
by Electrocycle
Fri, 14 Jan 2011, 04:28
Forum: Technical and conversion discussion
Topic: How controllers work
Replies: 10
Views: 1469

How controllers work

the 3 outputs are push pull though, so really they'd be -100% to +100% - and zero is zero output.
by Electrocycle
Thu, 13 Jan 2011, 21:17
Forum: Electric motors and controllers
Topic: RX400H transaxle
Replies: 169
Views: 22216

RX400H transaxle

shipping might be a fair bit, but assuming you can install that setup into another car it should work pretty well!

It'd go well with a Tritium controller :)
by Electrocycle
Mon, 10 Jan 2011, 17:36
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

depending on where you put the trailing arms for the diff, and how much travel it has, the for/aft movement shouldn't be too far. Most engine mounts will let you have at least 15mm which I think would be plenty. I think the less vibration the motor experiences the better, but it should be ok. The ty...
by Electrocycle
Mon, 10 Jan 2011, 13:30
Forum: Members Machines
Topic: Obsolete Thread
Replies: 576
Views: 91560

EV2Go's - Lithium Powered Trike

I think you should see how an existing hard tail trike rides and decide if it's going to be ok. Not having rear suspension will makes things a lot simpler, as long as the ride will be acceptable. I think suspension is likely to introduce as many stability issues as it will solve (although it's easie...
by Electrocycle
Mon, 10 Jan 2011, 05:11
Forum: Technical and conversion discussion
Topic: Poor Man's Regen. air con.
Replies: 20
Views: 2766

Poor Man's Regen. air con.

coulomb wrote:Most (all?) car heater cores would have copper in them;


All modern ones (since the 80's) I've seen have been aluminium
by Electrocycle
Fri, 07 Jan 2011, 06:25
Forum: EV Racing
Topic: 200mph what to use AC or DC??
Replies: 109
Views: 16408

200mph what to use AC or DC??

it's the area you see in 2D from the front.

The difference caused by the actual shapes is what effects the Cd

You can have two shapes of equal frontal area but very different drag figures due to the efficiency of the shape.
by Electrocycle
Mon, 03 Jan 2011, 15:33
Forum: EV Motoring
Topic: UltraCommuter
Replies: 13
Views: 3847

UltraCommuter

There's also a Lamborghini green foam/fiberglass dummy that the RACQ used for their "100 years of motoring" exhibit, sitting in our front carpark. Ultramotive used to have it up on the wall of their shed once RACQ finished with it. It's free to a good home if anyone wants to come and take it! got a...