martinslyon
|
| posted on 5/7/12 at 07:55 AM |
|
|
quote:
Originally posted by watsonpj
Hi Martin
I had a really good look at your pictures last week as its of real interest to me as I am also interested in an electric vehicle build. Mine is also a
single seat as I would like to use it as my daily driver to work (120miles round trip). I was looking at either a warp motor or a couple of agni
motors with lithium ion batteries. It started as a car with 4 wheels but i had come to conclusion that to lose weight a wheel needed to be
sacrificed. I'm no where near as far along as you appear but thanks for re invigorating my interest in the project.
Heres a picture of what I am think of,
[img]
 
trike
[/img]
Please keep up the great work. cheers Pete
Hi Pete and thank you for your comments. I like your graphic and look forward to seeing how your project develops. Regards Martin
|
|
|
|
|
martinslyon
|
| posted on 5/7/12 at 08:04 AM |
|
|
quote:
Originally posted by rallyingden
Like the idea ........
What electronics are you using ?
What Voltage are you running at ?
DC or AC drive ?
Are you using regen braking ?
Keep[ up the good work
RD 
Ah ha - a boffin, I could do with you down here Den, I will be posting my plans shortly and inviting feedback because I really am in uncharted
territory.
I want to get the prototype finished as quickly and cheaply as possible so that I have a test bed to work on as I will be learning as I go.
Regenerative braking is not on the agenda to start with, but who knows, if I get good at this I might try a little sophistication.
Thanks for taking an interest, Regard Martin
|
|
|
mikeb
|
| posted on 5/7/12 at 10:49 AM |
|
|
Loving this. Great work.
A guy at my old place made a really neat 4 wheel electric car (he's made two actually) both really well engineered, he had hte luxory of a very
nice battery system for next to nothing.
Just a thought but could you not design it so the electric motor is chain driven to the rear wheel thus loosing the weight of the diff and drive
shafts. Not sure on final drive ratios and motor torque but purely from a weight saving perspective?
|
|
|
Mr Whippy
|
| posted on 5/7/12 at 11:12 AM |
|
|
I like it so far, though for real efficiency I'd have dumped the wide tyres, the rolling friction from almost 3ft of tread will kill your
battery and performance and harm streamlining
I wish such cars had separate roads from other traffic then I’d have been building one too
[Edited on 5/7/12 by Mr Whippy]
|
|
|
HowardB
|
| posted on 5/7/12 at 11:33 AM |
|
|
I like the system as electric motors can produce significant torque from a standstill, so 2wd is better than 1wd. However as you say there are issues
of efficiency and losses from the diff.
Battery weight and position will be important, especially so for cornering.
As for tyres, I am sure that the use of more narrow wheels will help. I was told that on the Volvo V40 the use of 195 tyres gave 99g/km CO2, but
215's increased that by 3% and put the vehicle into another tax bracket(!)
It is an interesting idea, and I shall watch and learn, much better than the TG electo-toy-disaster 
Howard
Fisher Fury was 2000 Zetec - now a 1600 (it Lives again and goes zoom)
|
|
|
Mr Whippy
|
| posted on 5/7/12 at 12:04 PM |
|
|
only other point is the chassis top rails at the cockpit edge, the way you have it designed, if you were rear ended the area of the chassis that would
crumple or fold up is where you are sitting... I'd want to beef that section up alot perhaps use larger or doubled up tubing, even a x-brace
rather than just a plain diagonal
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:11 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:12 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:13 PM |
|
|
[img]
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:14 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:15 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:17 PM |
|
|
[img]http://
 
tr8
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:18 PM |
|
|
[img]http://
 
tr9
[/img]
|
|
|
martinslyon
|
| posted on 5/7/12 at 04:19 PM |
|
|
[img]http://
 
tr10
[/img]
|
|
|
TheGiantTribble
|
| posted on 5/7/12 at 05:24 PM |
|
|
quote:
Originally posted by martinslyon
[img]http://
Description
[/img]
Do my eyes fool me or is that a 4 wheeler not a trike
And it looks AWSSSUMMMMmmmmly sweet, yes I like that a lot
|
|
|
martinslyon
|
| posted on 5/7/12 at 06:05 PM |
|
|
quote:
Originally posted by TheGiantTribble
quote:
Originally posted by martinslyon
[img]http://
Description
[/img]
Do my eyes fool me or is that a 4 wheeler not a trike
And it looks AWSSSUMMMMmmmmly sweet, yes I like that a lot
You noticed! it's Dennis Palatov's expertly self built dp1.
Imagine the two rear wings merged together under the centre cockpit section.
And the front wings connected to the centre section with aero sections covering the wishbones - and that is what I hope my reverse trike will look
like when finished.
|
|
|
Mr Whippy
|
| posted on 6/7/12 at 07:09 AM |
|
|
quote:
Originally posted by martinslyon
[img]http://
Description
[/img]
this looks very good  )
|
|
|
martinslyon
|
| posted on 6/7/12 at 07:21 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 6/7/12 at 07:24 PM |
|
|
[pg]91677[/pg]
[img]http://
 
Description
[/img]
[Edited on 6/7/12 by martinslyon]
|
|
|
martinslyon
|
| posted on 6/7/12 at 07:25 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 6/7/12 at 07:27 PM |
|
|
[img]http://
 
Description
[/img]
|
|
|
martinslyon
|
| posted on 7/7/12 at 03:02 AM |
|
|
quote:
Originally posted by martinslyon
Front corner with drive shaft
[img]http://
 
Description
[/img]
Will post more soon, would be interested to receive feedback and comments?
'Wot no brakes??
|
|
|
MikeRJ
|
| posted on 7/7/12 at 07:25 AM |
|
|
quote:
Originally posted by martinslyon
[img]http://
tr8
[/img]
Has your design now changed? This is a more conventional layout for the pushrods, operating on the lower wishbones and avoiding the shallow angles of
the original.
|
|
|
martinslyon
|
| posted on 7/7/12 at 08:17 AM |
|
|
quote:
Originally posted by MikeRJ
quote:
Originally posted by martinslyon
[img]http://
tr8
[/img]
Has your design now changed? This is a more conventional layout for the pushrods, operating on the lower wishbones and avoiding the shallow angles of
the original.
Not really Mike, this was an earlier drawing, the final configuration will depend on accomodating things like drive shaft clearance and is therefore
dependant on the uprights and hubs I use, originally I acquired some old Mini Cooper bits but then managed to get the DP uprights shown in the earlier
pictures which work with Golf mk1 bits.
It also depends to some extent on whether the single disc mounted between the motor and the diff actually works or whether that also has to be
modified to something more conventional.
The CAD work was done for me by Simon Keys and was high level and conceptual, I don't have the skills and cannot afford to get all the
development work doine in advance on paper so that means some of it is just going to be mocking it up physically, testing it and seeing if it works
OK, not very professional I know but it's the best I can do with limited resources.
Having said that I enjoy pottering so it's part of the fun of the project for me.
Thanks for your continued interest.
Regards
Martin
|
|
|
