Chinese Electric Hybrid Scooter Bike Repair

Cars, buses, bicycles, electric airplanes: all electric transportation that exist. Conversion, engines and electric drives for transport ...
User avatar
Lietseu
Econologue expert
Econologue expert
posts: 2327
Registration: 06/04/07, 06:33
Location: Antwerp Belgium, Skype lietseu1
x 3




by Lietseu » 26/05/09, 21:01

We can't be good in everything Christophe : Cheesy:
0 x
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 ...
Christophe
Moderator
Moderator
posts: 79287
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 11024




by Christophe » 26/05/09, 22:50

Nanananana ....

Still, the array looks like strings in programming ... whatever :)
0 x
User avatar
Philippe Schutt
Econologue expert
Econologue expert
posts: 1611
Registration: 25/12/05, 18:03
Location: Alsace
x 33




by Philippe Schutt » 27/05/09, 08:23

In my old stacker there were 220kg of batteries in 12 2V cells mounted in series.
Given the section of connections between elements (larger than jump cables) I fear that your connection is too small and lead to significant losses.
0 x
Christophe
Moderator
Moderator
posts: 79287
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 11024




by Christophe » 27/05/09, 10:00

Ah? However, it is the "original" connectors (the batteries were already assembled in pairs, I only assembled the pairs in series with the connectors already fitted).

We will see but hey we are still very far from the amperage that can give 220kg of batteries there ...

In any case I checked: the load, there is no overheating but the amperage remains below 1A ... Bah we'll see!

If I find the time, I will test on the road today.
0 x
Christophe
Moderator
Moderator
posts: 79287
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 11024




by Christophe » 01/06/09, 15:20

Here I finished the "solar conversion of the bicycle scooter":

a) The "new" NiCd 24V 8.2 Ah battery well wedged thanks to a few recycled boxes (and what was left of the original polystyrene) :)

Image

b) The 2 amorphous 5W panels:

Image

c) The tilting structure adjustable and foldable "without tools" thanks to wing nuts and nelstop:

Image
Image
Image

It is made of aluminum profiles and can be folded easily to be mounted on the scooter (the panels in the back on a backpack).

d) Details
- connection of the panels (1 panels per "string" of 12V batteries):
Image
- solar charge current (measured on 1 of the 2 panels / batteries): Image

And a last photo to show the montage:

Image

e) In terms of performance:

I didn't have much time to test the "long-term road" performance but I measured the charging current of the 2 panels in bright sunshine (on the same battery pack):
a) 260 mA at 14.51 V = 3.77 W
b) 320 mA at 14.65 V = 4.69 W

Total load power = 3.77 + 4.69 = 8.46 W while the nominal power is 5 + 5 = 10W so it's good ca load.

There is an asymmetry on the solar panels: the b) is a panel that I have just unpacked, the a) has already been used for 1 year for various tests. So I do not know if it is already a wear or if it comes from a difference in original power ... We will see ... in a year if the power decreases from the other!
0 x
User avatar
Remundo
Moderator
Moderator
posts: 16086
Registration: 15/10/07, 16:05
Location: Clermont Ferrand
x 5231




by Remundo » 01/06/09, 15:38

Nice! 8)

Otherwise, it is not necessary that you get 10W of charge even with new PV ... In fact, the system is set to a voltage / current operating point corresponding to the intersection of the voltage / current characteristics of the panels and that of the batteries in charge.

Even there, you seem to have come across a good combination of battery panels and strings.

@+
0 x
Image
the middle
Econologue expert
Econologue expert
posts: 4075
Registration: 12/01/07, 08:18
x 4




by the middle » 01/06/09, 19:19

Well, it's almost out of nuclear : Cheesy:
0 x
Man is by nature a political animal (Aristotle)
User avatar
orbs
I understand econologic
I understand econologic
posts: 156
Registration: 15/09/05, 20:21




by orbs » 01/06/09, 19:53

there is even sun
that is to say that "everything is for the best in the best of ecological worlds".
: Cheesy:
@+
orbs
0 x
Christophe
Moderator
Moderator
posts: 79287
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 11024




by Christophe » 01/06/09, 20:30

lejustemilieu wrote:Well, it's almost out of nuclear : Cheesy:


Yeah almost it's the right word: it would be even better if the scooter could go almost further than ... the end of the street : Mrgreen:

Finally, to amuse the little neighbor and to experiment and share experiences is already good! If I can I will take it back to the next meeting (the scooter not the neighbor)! Then it should give ideas ...

Good in terms of energy balance:

a) consumption estimated at 200W => 200W.h per hour of operation. If the speed is 20 km / h it is 200W.h for 20 km traveled or 10 Wh / km = 0.01 kWh / km from the "battery to the wheel" (which is still a lot for the weight and the speed of the device but hey ...)

b) production = 8W during say 6h averaged per day in summer = 48 Wh per day of gain. We can therefore drive: 48/10 = 4.8 km per day of sunshine.

Hey hey !! It's not that weak after all!

By increasing the motor / solar power tenfold, we could very well achieve things that can be used "really" ... Style: let's increase the power by 100: 20 kW of electric power and 800 W of solar power (= about 5 m² of solar power or 3000 at 4000 € regulator included)!

Investment in the solar vehicle: 15 to 20 € including an electric vehicle ... for short trips every day (as 000% of cars do) it would be very reasonable ...

What do you think? Is there a bug?
0 x
User avatar
I Citro
Econologue expert
Econologue expert
posts: 5129
Registration: 08/03/06, 13:26
Location: Bordeaux
x 11




by I Citro » 02/06/09, 00:19

: Arrow: You will end up registering on a forum specialized... : Lol:
0 x

 


  • Similar topics
    Replies
    views
    Last message

Back to "Electric transport: cars, bicycles, public transport, planes ..."

Who is online ?

Users browsing this forum : No registered users and 111 guests