Mittwoch, 24. Oktober 2012

WarP 9 ™ Motor In Stock

Just arrived in Hamburg, Germany
As an authorized international Netgain dealer this WarP 9 is for sale.
Inquiries at:

Freitag, 28. September 2012

Top Speed

I wanted to make a whole new EVDrive film. But there is something wrong with the is much to silent. So only this little clip.
The Soliton1 has liquid cooling now with a water pump that is running the whole time. This gives me a stable water temperature at about 28°C at 12°C outside temperature. The fan will be switched by the Soliton1-output -water pump via  a relay. But I don't think the fan will run in the next seven mounth.

Samstag, 15. September 2012

EV cooling System

The  shop is working again.
I did a test drive at 22°C (72°F) outside temperature with the now closed hood.
On the Autobahn the Soliton1 reached the 65°C (150°F). While the controller alarm started to blink he changed from 14 KHz to 8KHz and derated the motor current.

Liquid cooling is not an option. It's a must.

 In search for the best working and best looking place under the hood.
 This will work and can be welded together..

Montag, 10. September 2012

Bad Boy Charger

I am thinking about a fast charger...
Last night I have been reading a bit into the topic.
We have 230V singel phase and 380-400V three phase 16/32/63A 50Hz here in Germany. As I unterstand it, a 3 phase Rectifier will give me 1,414(TRMS) times the voltage in DC. That will give me 540-565VDC. To smooth out the DC current I need an inductor and a capacitor.
I need 246VDC max.54A to charge my 70 SE 180 AHA CALB's. I don't know if I can do this by an three phase AC transformer or with an IGBT on the DC side? It should be simple and low-priced.
If I have to spend money, then better in a few more cells.) But not another 84 cells.
Also I think about an inrush current limiting not always to blow the house fuse....

Mittwoch, 22. August 2012

Donnerstag, 26. Juli 2012

Elektra Is Dressing Up

The color is original Citroen 2CV. AC118 Gris Etna

Gearbox Output Shaft

The gearbox output shaft was not running in center. The ball bearing shaft sitting was too small. The shaft had to be built-up by chrome plating. It took four weeks...
...but finally the shaft its running perfect.

Montag, 18. Juni 2012

EV "Save Your Components" Bodywork

I do not need a radiator grill hole, because through the hole rain water and dust is coming directly to and in the electric motor. That will shorten the lifetime of our brushes and commutator a lot.

Edge Setter & Hole Punch Plier

Freitag, 15. Juni 2012

Switch Box Brainstorming

For the next step I would like to use an electronic timer relay but one that switches the precharge circuit also "off" after the main circuit is "on".

Perhaps I have to use two of them.
One with a switch-off delay for the precharge circuit for 20 sec. runtime and the second with a switch-on delay of 10 sec...

Mittwoch, 13. Juni 2012

Montag, 28. Mai 2012

Montag, 21. Mai 2012

High-Performance Silicon Diodes

I will use one or two diodes between the battery pack and the 13,8 volt DC-DC converter to make sure that the converter capacitors will stay clean.

Freitag, 11. Mai 2012

1KAmp Relay Box Design

The Inline Box

Copper Prototype

Inline Cables Version

One Side Cables Version

Trial And Error

Dienstag, 8. Mai 2012

Montag, 7. Mai 2012

Top speed

The top speed is at 145 km/h (90 mph). Only limited by the rpm at about 5400. With a longer gearbox it would go much faster, but it's fine for me..)

Dienstag, 24. April 2012

JLD7100 (DC 12V) PID Temperature Controller

I do not understand the pin assignment on this temperature controller on pin 6 to 8.

Perhaps somebody can help...

And the answer is:

Hannover Messe 2012

I was on Monday at the Hannover Messe,halle 25. MobiliTec-Leading Trade Fair for Hybrid and Electric Powertrain Technologies, Mobile Energy Storage and Alternative Mobility Solutions.
My conclusion: WE are doing everything right!

Montag, 16. April 2012

Samstag, 7. April 2012

Fuse check

Siemens 3NA3480 NH-Sicherungseinsatz gL/gG mit Stirnkennmelder Gr. 4, 1000A, AC500V/DC 440V

Freitag, 30. März 2012

The Shunt Box

It is a 1000A shunt with 70mm² AWG 2/0 cable from the negative side of the Battery pack.