electric motorcycle EV X7 ... and other models (Zero ...)

Cars, buses, bicycles, electric airplanes: all electric transportation that exist. Conversion, engines and electric drives for transport ...
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by elephant » 31/03/07, 17:46

Be serious:

1) the development of a large-scale technology can only be beneficial to the economy of a country with positive repercussions on employment and the balance of trade and the dynamism of industrialists

2) there will always be a way to tax the km traveled, even if the car goes to the Evian. All states have specialists
very imaginative and electronic ideas resources are inexhaustible!

3) assuming that gasoline and diesel become less demanded, their price will increase, so there is a way to stabilize the profits of the oil companies intern ... too bad for the emirs ....

4) reassure them: new transport technologies will not happen overnight, which gives the economic players time to refocus their investments and participations.

5) it's like everything else: there will be a slide: the computer has not revolutionized typing and accounting, drawing, graphic arts overnight. It took a good ten years for digital photography to replace film almost entirely. It will take longer to replace vehicles from 6000 to 600.000 euros.

6) each solution will have its own slots, possibly temporary: a sales representative may be interested in a prius, while an all-electric partner will rather involve a postman or a delivery of prepared meals. On the other hand some vehicles will have to wait longer for their progress.

7) more slips are going to take place and do not forget that we will tell you that the obligatory step, at least for fifty years, passes
by the nuclear : Cheesy: lady! you have to make the electricity that will be put in your batteries
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Yamaha EC-02




by Christophe » 13/08/07, 22:03

One more, the Yamaha EC-02

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If you like the Enertia but not the price tag, consider Yamaha's Electric Commuter EC-02. It's just $ 2,000. It looks a lot like the Enertia electric bike, just smaller and much slower. The Enertia's top speed is 50 MPH while the EC-02 can only go 18 MPH. Enertia says their "bikes are not associated with Yamaha. The Enertia design is a clean sheet (not a conversion or extension of a previous design) and was built from design to be the first street legal production electric motorcycle."

EC-02 is 30 percent recyclable and it can fold easily. There is a special Ipod edition of the EC-02. That version lets you drop your Ipod in a special dock. You can also swap the battery in the EC-02. It's pretty tiny and slow but I guess it's the Enertia is worth the cost. If you ever said, make a cheaper Enertia, well, here is something like what you would get. Go below the fold to see the EC-02 in the wild.
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by stef5555 » 14/08/07, 08:18

a chtit article in french on yamaha

Yamaha presents us a very small motorcycle equipped with an electric motor. With its very nice look you will be able to browse 40 km at the speed of 30km / h (only for city trips). It has an aluminum frame and 30% of its structure is recyclable. You will need 6h to recharge the battery. The small motorcycle EC-02 weighs 47 kg.

Its price: 1500 €.
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by Christophe » 14/10/07, 18:17

I finally understood the sentence:

If you like it, consider Yamaha's Electric Commuter EC-02.


To have: www.enertiabike.com
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Re: Electric Motorcycle EV X7




by Lietseu » 30/06/08, 04:55

Christophe wrote:It's beautiful progress!

Image

This electric motorcycle concept was unveiled at the Tokyo Motorcycle Show, by the Japanese manufacturer Axle. His name ? "EV-X7". It weighs 200 kg and has an 25kW motor combining an electromagnet and a permanent magnet.
Thanks to this new engine, called Sumo and developed by its partner Genesis, the autonomy of the EV-X7 is 180 kilometers.

http://www.usinenouvelle.com/article/pa ... idoc=70215


And I ask myself, what would happen if we tied behind a trick, a small cart built with big wheels, that would drive a powerful alternator that would recharge the batteries?

what is the power absorbed by a powerful car alternator? and what is its yield, is there anyone who could explain it in clear ways?



Thank you for telling me if I'm kidding ... or not! : Mrgreen:
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by dirk pitt » 30/06/08, 12:03

sorry to tell you Yes, you're messing around.
the great chimera of recharging the batteries by using precisely their own power (that which will deliver the engine of traction of the vehicle) leads only to a decrease of the global autonomy because it is equivalent to an additional loss of energy.

just consider this (in very simplified).
you consume 1000W to move the bike on the flat at a speed X.
now, you add a trailer with a wheel that drives an alternator. Qu'obtiens you.
The alternator brakes the motorcycle + or- proportional to the power you get from the alternator.
Let's say that you charge the alternator to draw 500W.
as the mechanical and electrical performance is not perfect, the power you need to tow your trailer will be, say 560W.
the engine of the motorcycle will therefore consume 1560W and you will recover 500W from your alternator.
history gain: a loss of 60W (equivalent to the extra losses you did not have at the beginning.)
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by Lietseu » 01/07/08, 20:59

:D it is very useful to recognize these limitations : Cheesy:

Even if it is not very pleasant! At least, my question to the con, it has the merit of making understand something simple .... thanks to the simple (and very clear) terms that you used :D


Thank you for your explanation!

Sincerely, Lietseu
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By removing Human Nature, he was far from his nature! Lietseu

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by Lietseu » 03/07/08, 02:21

Suddenly, the old courses of elementary physics come back to us in memory, to produce an energy X one needs an equivalent or quasi energy .....

Come another less light question, or could I find an assembly plan, which would indicate to me what type of solar panels I would need to reconstitute the losses due to the use of my electric "scooter" (machine with three wheels for disabled people, manufactured by steerling) the idea being to put a sufficiently large solar panel on top of the machine, to be able to 1 ° avoid sunstroke, 2 ° rain, 3 ° and of course increase the autonomy of the machine which theoretically can do 40Km with 2 batteries of 12V-62A / h of semi-traction lead-Gel type

Would you have some advice to give me, and if so, what technical data do you have to do this?


Thank you so much ! :P
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By removing Human Nature, he was far from his nature! Lietseu

"The power of love, must be stronger than the love of power" contemporary Lie Tzu?

One sees clearly only with the heart, the essential is invisible to the eyes ...
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by I Citro » 03/07/08, 13:26

Lietseu wrote:Suddenly, the old courses of elementary physics come back to us in memory, to produce an energy X one needs an equivalent or quasi energy .....

To produce energy X (we will say electricity), we need a source of energy plus losses:
- Mechanics (transmission)
- Thermal (warming up)
- Chemical (conversion / storage)

Lietseu wrote:Come another less light question, or could I find an assembly plan, which would indicate to me what type of solar panels I would need to reconstitute the losses due to the use of my electric "scooter" (machine with three wheels for disabled people, manufactured by steerling) the idea being to put a sufficiently large solar panel on top of the machine, to be able to 1 ° avoid sunstroke, 2 ° rain, 3 ° and of course increase the autonomy of the machine which theoretically can do 40Km with 2 batteries of 12V-62A / h of semi-traction lead-Gel type

Would you have some advice to give me, and if so, what technical data do you have to do this?


Thank you so much ! :P


The best solar panels are mono crystal. they are rigid, you can find easily on the net (at conrad, for example).

For the plans, you are in the field of the prototype, you should patent ... :?
Your idea is interesting, you have to do something simple, light and functional, a little design would be a plus to give commercial value to your concept.
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by dirk pitt » 03/07/08, 13:45

all you need is a calculator or a paper and a pencil.

go, little corner table calculations (as I like them)

then you tell us 2 12V batteries 62Ah allowing to do theoretically 40km.
calculate the consumption of this machine:
2x12x62 = 1488Wh of embedded energy to make 40km (by emptying them to the end of the end, what not to do)
that means that the machine consumes approximately 1488 / 40 = 37Wh / km (in addition it seems to me coherent with the type of vehicle)

If you want to keep your lead batteries in shape, you must avoid unloading more than 20% which is about 300Wh
With these 300Wh, you do about 300 / 37 = 8km

now you take a solar panel compatible with the dimensions of your gear. I will see a 50cm x 100cm. look on the net, these panels are usually around 50Wc
If you take a ride of 2 hours in full sun, you recover at max 2x50 = 100Wh: the equivalent of env 2,7km
if your ride is to go to the 1,3km troquet and return 2 hours later, it will not cost you any electricity :D (in beer, maybe a little) : Oops:

all this is theoretical because we would have to see technically how to recharge while driving, etc ... but this is another story

good stuff
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