Construção de um Veiculo Electrico! In English!

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Construção de um Veiculo Electrico! In English!

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Última edição por serges em terça set 25, 2007 10:54 pm, editado 1 vez no total.
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já convidei o dito para melhor esclarecer e participarmos um pouco com os nossos conhecimentos na construção do mesmo!

por isso comecem a treinar um pouco o vosso inglês!
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não pode ser ele a treinar o portugues.
"A vida é uma folga que a morte nos dá"

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duvido!

é muito do estilo cheers mate!

nova zelandia!

tenho estado a acompanhar o projecto dele e esta fantastico!
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why ev


well why not?



people always seem surprised when i tell them i'm converting a car to run on electricity. my neighbour laughed, thinking i was joking!

i guess many of them see it as unnecessary, and that could very well be true - if it was still 1986.



there's no point in listing all the pros and cons of an electric car compared to a gas car as neither motor will suit everyone perfectly.

even if global warming, sorry, "climate change" (it's certainly not getting warmer down here) is a myth, it's about time we started clearing the air anyway.

it still shocks me that new zealand, with it's clean & green image, is doing nothing noticeable to keep it that way.

too often i've read about tourists saying how nz's natural beauty is ruined when you're stuck in a sea of smoke on the nation's roads. it's easy to fix too. frustrating!



i'm not a green-freak, i don't wear sandals and i have no beard. i just like looking out the window and seeing nz as it should always be; naturally beautiful.



oh, don't let this put you off. nz really is a stunning country, especially the south island. within just one day you can be driving through snow-capped mountains, sub tropical rainforest, untamed western coastline and geothermal fields of natural hot springs. it's well worth the visit, i just want to help keep it that way.



carbon and pollution reduction is one reason, but economics is the other (and perhaps the biggest) draw card to converting an ev for me!

here in nz, petrol (gas) is quite expensive. not just because of the petrol companies, but also because our fuel is heavily taxed, hitting the nation's wallets at around $1.58 per litre at present. for those of us in the usa it means that $20 us gets you 4.65 gallons. not nice huh?



i've wanted an electric car for around ten years and i've became more determined to convert one every year.



the recent experience of waiting in a nearby bp service station one day for 15 minutes was the final straw.

i know it was a saturday, but having to wait for fifteen long minutes for $30 worth of something i didn't want in the first place? ugh, give me strength!



obviously we'll need a car if we want to drive to other citys but that's been taken care of. a friend has already offered his car for long trips- as long as i give it a wash each time.

sounds like a good deal to me!



even though this was written in the early stages of the ev process, the amount of support and information i've been given is amazing.

there are a wealth of great people out there that have their own web pages built up and are more than happy to offer advice.

join an ev discussion group, or do what i do, hover around the net googling everything til i find an answer.



there are many more reasons for wanting to convert a car to run on simple clean electricity, but don't get too caught up in the why's and why-not's, just find an old car, have a go and see what happens.



i can't wait to be liberated from the high petrol prices, petrol tax and the oil industry. it just sounds right.



ok, that's enough of the deep & meaningful stuff, let's get back to the ev!
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KiwiEV
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Mensagem por KiwiEV »

hello novaenergia!

i had an invitation from sergio to visit your electric car discussion website.
i hope i can answer any questions for you.

sorry i can not speak portuguese - only english.
when joining this website i was asked many questions in portuguese and i had to guess answers.

i have to use http://babelfish.altavista.com translator to read your messages.

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escalavardo
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hi. wellcome. questions will came just in a while..

my main question is: when you convert a gas powered car in to ev, don´t you have problems then to legalize it? can that car go on the road? (in your country, of course)
3º sócio novaenergia

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hello kiwiev.

thank you for your visit! and to listening to my prairies!

ok i have seen all your videos and i think it was the step nine (installing the pot box) you mentioned
a few days after i'd installed the pot-box i was contacted by another kiwi who's starting his own ev conversion up in auckland. he reminded me that here in new zealand it's a requirement to have an additional spring connected to the pot-box, in case the pot-box internal spring fails and the car gets stuck at full throttle.
is it all that the requirement of the new zealand to do it a electric car?

here in portugal is needed a mountain of files and i don't know what else!
but please don't give up of your work on the ev!

wish you best of luck
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gav, i put here some of your information to all see and perhaps helps you with new ideas!

step ten - installing the motor

this (major) step in the electric car project will see the arrival and installation of my shiny new advanced dc fb-4001a motor into the tredia all the way from ev america in "nh". i still have no idea where that is or what it stands for but i fear if i find out then there goes all the mystique and romance of my motor's origin...

-correction, i've had many emails ruining my fantasy. "nh" is actually new hampshire located on the east coast of america. there. i hope you're all happy now.



ok, enough waffling.



the motor has at long last arrived. we picked it up from my parent's house in auckland so now i have to create (or find someone to create) an adaptor plate to mount it to the gearbox, then i can install it into the engine bay of the tredia!

man is it heavy! 80 kilos of corn-fed, yoghurt-toned electric motor. that's about 160 pounds!



the biggest technical problem of the conversion so far is the joining of the electric motor to the gearbox.

i have to find a way to make this tiny (in comparison) motor attach to a gearbox whose only known friend was a hot, smelly & noisy gas engine!

many people have emailed me suggestions and i have looked at dozens of other conversions to see how they've done it. so far, my favourite motor + gearbox connection has been jay caplan's renault lecar. jay has used a method so simple it's brilliant!

he has created a shaft coupler out of a slice of a two inch metal bar with a slot for a keyway, all attached to the splined cog from the old clutch disk (with the clutchy-bit removed).



you can see by my this well-meaning but naive little picture i made up on windows paint the main components for my coupler.

i created this picture utilising ideas from other people's designs and all the great advice people have given me. there are many dozens of different couplers people have created. one thing i've learnt about couplers is that as long as the end result gets the job done reliably and safely, it doesn't matter what it looks like or how it works.

funny, people have said the same thing about my bass playing... compliment or not i'll never know...



obviously the picture isn't to scale and the shaft sizes are not accurate but it gives you an idea of how it will work.

as you can see from step 5, the car has no clutch assembly or clutch pedal, which helps to keeps things nice and simple. it also means i can use the old clutch disk as part of the coupler.

Imagem

i plan having an adapter plate (1) cut to shape for the motor and gearbox to both bolt to. i did a rough measurement and estimate there will be a space of around 2 inches between the shaft of the gearbox and shaft of the motor once bolted to the adapter plate.

the coupler will consist of a slice of a thick, hollow metal shaft (2) with a keyway cut and a keylock precision welded in.

the old clutch plate (3) will be joined to this shaft, making one complete coupler.

together, with the coupler filling the gap between the two shafts, the whole thing will attach to the gearbox (4) and live happily ever after!



well that's the plan anyhow. my main priorities are to make sure the coupler is strong enough to handle all that motor torque and stress for years to come and to make sure it's aligned absolutely spot-on. i'm guessing with labour and parts, the whole thing should set me back about $300 give or take.



so now i'm on the war path to find a precision welder who can turn my crazy kiwi coupler into reality. if it works then i welcome anyone to use the idea for their own ev!

wish me luck!

watch this space!
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KiwiEV
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Mensagem por KiwiEV »

escalavardo Escreveu:hi. wellcome. questions will came just in a while..

my main question is: when you convert a gas powered car in to ev, don´t you have problems then to legalize it? can that car go on the road? (in your country, of course)
hi mate, there are some little problems i must face here in new zealand.
it seems you can do anything to a car in america no problem, but here you must follow strict rules. i have many pages of rules to follow.
when i have finished, i must take the car to auckland (4 hours away) and get it tested by a ev tester before i can drive it.
it's expensive and annoying.

i wonder if they do it on purpose? maybe a conspiracy? hehehe.

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KiwiEV
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serges Escreveu:hello kiwiev.

thank you for your visit! and to listening to my prairies!

ok i have seen all your videos and i think it was the step nine (installing the pot box) you mentioned
a few days after i'd installed the pot-box i was contacted by another kiwi who's starting his own ev conversion up in auckland. he reminded me that here in new zealand it's a requirement to have an additional spring connected to the pot-box, in case the pot-box internal spring fails and the car gets stuck at full throttle.
is it all that the requirement of the new zealand to do it a electric car?

here in portugal is needed a mountain of files and i don't know what else!
but please don't give up of your work on the ev!

wish you best of luck
hey serges, yep, that's the same here. we have 25 pages of rules to follow when building an ev here. not fun.
one of the rules is the extra spring for the pot-box. i don't know why - the pot-box already has a big spring.

i still have a lot to do. the next big problem is getting the gearbox and the motor together.
you can see my windows paint picture above. that is a very very basic idea i copied from this person: http://www.austinev.org/evalbum/727

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Imagem




if is it like this is very easy, that is an expression, but...


Imagem

adapter to attach motor shaft to splined trans shaft



in the net i only find ideas on the austinev!
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KiwiEV
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^^^that's the idea i will try to use.

this person has used a thick pipe to make the joiner. i will try to use the same idea but i don't think mine will look that nice!

i emailed two engineers/welders this evening.
now i can only relax and wait for the prices.

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Mensagem por xptosempre »

kiwiev do you have see this motors?
http://www.uqm.com/products/specsheet.html
in the movie i see that your potbox is only a switch, this company made brush-less motors, they are much more efficient, and can recharge the batteries when you use the brakes, and they have a special pot box for this type of motors.


regards

david

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KiwiEV
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wow. that is interesting. those brushless motors look very impressive.
i'd never seen those until you showed me.
i wonder why i've never seen them before and i wonder what they cost?


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serges Escreveu:já convidei o dito para melhor esclarecer e participarmos um pouco com os nossos conhecimentos na construção do mesmo!

por isso comecem a treinar um pouco o vosso inglês!
ou então podiam meter legendas.(rsrsrsrs)

cumprimentos
alerxandre

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Mensagem por serges »

alexjp4 Escreveu:
serges Escreveu:já convidei o dito para melhor esclarecer e participarmos um pouco com os nossos conhecimentos na construção do mesmo!

por isso comecem a treinar um pouco o vosso inglês!
ou então podiam meter legendas.(rsrsrsrs)

cumprimentos
alerxandre
cada um pode ir aqui! e traduzir!

gav is our guest! you can translate over here! for example!

gav, xptosempre give me an idea, i'm just wainting for an answer.

i will give some news maybe tomorrow, hope so!
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Mensagem por xptosempre »

kiwiev
i'm think that interface of the "inverter-controller" is relatively complex to easy use, they use a canbus and other protocols, you need a acknowledge of computer and electronics , i don't now if i can help
i will try

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eu espero que eu não críe um inglês falador do problema aqui!

(i hope speaking english does not create confusion on your portuguese site!)

do not worry about the inverter-controller details xptosempre, as i will be using this controller in my ev:
Imagem
this is the curtis 1231c. it is common, reliable and (most important) the cheapest!
i have very little money now because i have my wedding in 3 weeks in slovakia. the ev project must wait until we get back to new zealand.

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i hope speaking english does not create confusion on your portuguese site!
no!! it's ok
do not worry about the inverter-controller details xptosempre, as i will be using this controller in my ev:

this is the curtis 1231c. it is common, reliable and (most important) the cheapest!
ok good choice

i have very little money now because i have my wedding in 3 weeks in slovakia. the ev project must wait until we get back to new zealand.
good luck

stay connected
david

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