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Author: Subject: My Electric Three Wheeer Build
martinslyon

posted on 4/7/12 at 07:04 PM Reply With Quote
My Electric Three Wheeer Build

This illustrates the general arrangement of the main components
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martinslyon

posted on 4/7/12 at 07:06 PM Reply With Quote
And this the packaging within locost type chassis

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[Edited on 4/7/12 by martinslyon]

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martinslyon

posted on 4/7/12 at 07:09 PM Reply With Quote
Aluminium panels and wheels attached

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martinslyon

posted on 4/7/12 at 07:11 PM Reply With Quote
First assembly mock-up

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martinslyon

posted on 4/7/12 at 07:13 PM Reply With Quote
Showing monoshock linkage

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martinslyon

posted on 4/7/12 at 07:15 PM Reply With Quote
Simple and elegant front wheel drive upright

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martinslyon

posted on 4/7/12 at 07:17 PM Reply With Quote
Front corner with drive shaft

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Will post more soon, would be interested to receive feedback and comments?

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martinslyon

posted on 4/7/12 at 07:24 PM Reply With Quote
Monoshock linkage detail

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martinslyon

posted on 4/7/12 at 07:27 PM Reply With Quote
Labelled schematic

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martinslyon

posted on 4/7/12 at 07:30 PM Reply With Quote
Bottom view

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Fred W B

posted on 4/7/12 at 07:40 PM Reply With Quote
That all looks very impressive.

Pardon me if I've missed something, but what resists chassis roll in cornering with that setup?

Cheers

Fred W B





You can do it quickly. You can do it cheap. You can do it right. Pick any two.

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martinslyon

posted on 4/7/12 at 07:41 PM Reply With Quote
Fabricated swinging arm - similar to this.........

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martinslyon

posted on 4/7/12 at 07:46 PM Reply With Quote
But I'm going to use this for now...........

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HowardB

posted on 4/7/12 at 07:49 PM Reply With Quote
well impressive, what are you using for batteries?





Howard

Fisher Fury was 2000 Zetec - now a 1600 (it Lives again and goes zoom)

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martinslyon

posted on 4/7/12 at 07:58 PM Reply With Quote
quote:
Originally posted by Fred W B
That all looks very impressive.

Pardon me if I've missed something, but what resists chassis roll in cornering with that setup?

Cheers

Fred W B


Nothing at the moment Fred, I'm going to build the prototype in this configuration to keep it simple and lightweight, the ultimate objective is to develop a simple leaning mechanism that does not rely on hydraulics or electronics.
When I have it at a stage where we can test it we will evaluate how big a problem roll is on a wide based narrow three wheeler with all the weight low down between the wheel centres, and if necessary convert to a sliding pivot with belville springs and washers or at the very worst a push rod twin shock setup - but that would be an admission of complete failure and seriously dissapointing!

Thank you for taking an interest.
Regards Martin.

[Edited on 4/7/12 by martinslyon]

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martinslyon

posted on 4/7/12 at 08:02 PM Reply With Quote
quote:
Originally posted by HowardB
well impressive, what are you using for batteries?


Budget allowing - lithium-ion mounted on the floor where conveniant and low down on the outside of the main chassis in shaped aero pods.

Thank you for your interest.
Regards Martin

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MikeCapon

posted on 4/7/12 at 08:05 PM Reply With Quote
Wow. Nice work. Keep at it.





www.shock-factory.co.uk

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martinslyon

posted on 4/7/12 at 08:09 PM Reply With Quote
quote:
Originally posted by MikeCapon
Wow. Nice work. Keep at it.


Cheers Mike - I will post an image of my monoshock - I would appreciate your opinion.
Regards
Martin

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HowardB

posted on 4/7/12 at 08:13 PM Reply With Quote
quote:
Originally posted by martinslyon
quote:
Originally posted by HowardB
well impressive, what are you using for batteries?


Budget allowing - lithium-ion mounted on the floor where conveniant and low down on the outside of the main chassis in shaped aero pods.

Thank you for your interest.
Regards Martin


What kind of range are you looking for? That is gong to be some kit when it is done,..







Howard

Fisher Fury was 2000 Zetec - now a 1600 (it Lives again and goes zoom)

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martinslyon

posted on 4/7/12 at 08:13 PM Reply With Quote
This is my Ohlins monoshock - allegedly from a Van Diemen single seater??

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martinslyon

posted on 4/7/12 at 08:22 PM Reply With Quote
quote:
Originally posted by HowardB
quote:
Originally posted by martinslyon
quote:
Originally posted by HowardB
well impressive, what are you using for batteries?


Budget allowing - lithium-ion mounted on the floor where conveniant and low down on the outside of the main chassis in shaped aero pods.

Thank you for your interest.
Regards Martin


What kind of range are you looking for? That is gong to be some kit when it is done,..



Hi Howard, the starting point is to see what sort of performance we can get for a couple of hours, if it all turns out well I would like to see if we can sustain a fun to drive performance car for a range of 120 miles with an 8 hour recharge cycle.
But it's all theoretical at the moment because EV's are a bit of a black art to me and so I shall be learning as I go and posting on here to seek advice.
Thank you for your comments
Regards Martin

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rallyingden

posted on 4/7/12 at 08:56 PM Reply With Quote
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

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watsonpj

posted on 4/7/12 at 09:08 PM Reply With Quote
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,


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Please keep up the great work.


cheers Pete

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MikeRJ

posted on 5/7/12 at 07:03 AM Reply With Quote
Have you calculated the magnitude of the stresses that will be seen in the front suspension? The extremely shallow angle of your pushrods means there is going to be a very large compressive force on them and the bracket on the upright (and equally large tensile forces on the top wishbones). I don't wish to be negative but gut feel says that something is going to bend.
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martinslyon

posted on 5/7/12 at 07:52 AM Reply With Quote
quote:
Originally posted by MikeRJ
Have you calculated the magnitude of the stresses that will be seen in the front suspension? The extremely shallow angle of your pushrods means there is going to be a very large compressive force on them and the bracket on the upright (and equally large tensile forces on the top wishbones). I don't wish to be negative but gut feel says that something is going to bend.


I'm afraid I haven't Mike, sadly my skills do not extend to that level of technical competence, having said that bear in mind that under compression the pushrod will transfer force initially to the other side and then upwards via the front shock pivot, the pushrod angles and pivot point design are still not finalised, everything in the drawings and photos is just a mock-up at this stage.
I'm on a mission and I'm going to build it in line with my vision, if I'm not happy with how it works I will modify and evolve it.
I will keep your concerns in mind as I move forward and will report failures and successes so that other members can learn from my mistakes.
Thank you for taking an interest, Regards Martin

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