Search found 540 matches

by 7circle
Thu, 27 May 2010, 07:58
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 333458

Weber and Coulomb's MX-5

... We can only fit 5 in a row in our current oven/frying pan, and it will be less wiring to leave up to 9 of them connected with the squiggle bits. http://forums.aeva.asn.au/smileys/smiley30.gif All those packages. Also have you thought about cutting off the sides of the electric frypan .. opps so...
by 7circle
Thu, 27 May 2010, 07:49
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 22979

Questions on Elcon/TC chargers

From Weber and Coulomb's MX-5 Weber % Coulomb's MX5 The charger also arrived recently: http://forums.aeva.asn.au/uploads/690/ChargerNameplate.jpg ... a standard IEC cord, so we can just use a beefy computer cord instead. Was wondering about the nameplate. OUTPUT: TCCH-416V-5.5A           416V--3A@10...
by 7circle
Thu, 27 May 2010, 07:28
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 22979

Questions on Elcon/TC chargers

Good Pics Coulomb Wondering if the charger can be configured to only charge 4 cells. That's way below your desired config. But was wondering if the parameters can be set over the serial port or CAN bus. When you get a little box that can can covert serial to CAN bus I wonder what else the uControlle...
by 7circle
Wed, 26 May 2010, 22:58
Forum: General EV Discussion
Topic: 4WD and regen
Replies: 32
Views: 3560

4WD and regen

.. The 96V limit (I think) is for the 1238-65XX and lower numbered variant.   If you read carefully they don't even mention the 7501. Curtis really needs to update their documentation. Have checked out the Curtis website. They have a section for the 1238-75. Maybe the model name variation makes it ...
by 7circle
Wed, 26 May 2010, 00:43
Forum: Technical and conversion discussion
Topic: Disabling the speed controller when braking
Replies: 13
Views: 1642

Disabling the speed controller when braking

Hi Soyachips Picture paints a thousand words. So I had a play wth Google Docs Drawing tools. Made the circuit did an export then lost(didn't save) the drawing in GoogleDocs http://forums.aeva.asn.au/smileys/smiley5.gif So I would have to start over to modify it. This may not be how your scooter is/w...
by 7circle
Mon, 24 May 2010, 07:18
Forum: Technical and conversion discussion
Topic: Disabling the speed controller when braking
Replies: 13
Views: 1642

Disabling the speed controller when braking

Hi Soyachips Have you considered connecting a capacitor in series with the coil in the relay? Is the relay Normally closed? The current to charge the capacitor (if sized correct) will power the relay coil long enough to open the contact that link the enable to the keyswitch. You would also need a di...
by 7circle
Thu, 20 May 2010, 21:35
Forum: Technical and conversion discussion
Topic: Disabling the speed controller when braking
Replies: 13
Views: 1642

Disabling the speed controller when braking

...as a safety feature I'm thinking about adding a relay to disable the speed controller when the rear brake is used ... Do you want to remove the power to the controller? Or just dissable the throttle and set the controller input to zero? I read the elmoto site replies which cover the same issues....
by 7circle
Sat, 15 May 2010, 19:50
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 22979

Questions on Elcon/TC chargers

... From my reading of this: 1) Control may only be possible in "stop mode" at the end of charge. 2) All the above may not work at all if the charger is configured in CAN mode. Wow great info. The "STOP MODE" appears to be a the range 0V to 2V on the Enable pin. 0V < Venable < 2V : STOP MODE 2V < V...
by 7circle
Thu, 13 May 2010, 06:25
Forum: General EV Discussion
Topic: is my maths right?
Replies: 11
Views: 1902

is my maths right?

Have you checked out this site. evahakansson Quote from site: Battery: 16 cells, Thunder Sky LFP 90 Ah Voltage: Nominal 53 V, fully charged 60 V Weight battery pack: 48 kg (106 lbs) Capacity: nominal about 4.8 kWh Total weight: about 165 kg (363 lbs) Top speed: The top speed is gearing dependent and...
by 7circle
Mon, 10 May 2010, 06:30
Forum: Batteries, charging, management and monitoring
Topic: Questions on Elcon/TC chargers
Replies: 95
Views: 22979

Questions on Elcon/TC chargers

For those interested in this charger, you should read this page: http://lithiumate.elithion.com/php/elcon.php In particular: The ElCon cannot handle being on buses that contain more than 2 messages per second!     * Too many messages on the CAN bus slow down the ElCon charger, reducing the rate of ...
by 7circle
Sat, 08 May 2010, 06:33
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 333458

Weber and Coulomb's MX-5

You guys are unreleanting. http://forums.aeva.asn.au/smileys/smiley32.gif I'm still not to sure how the PCB's connect. LINK OUT to above battery LINK IN I assume. Cant tell from Track design. Just a thought that as the link is a diagnostic fault function it would be sad to loose it during charging. ...
by 7circle
Thu, 29 Apr 2010, 07:42
Forum: Electric motors and controllers
Topic: Two speed motor, modifiable/useful for EV?
Replies: 9
Views: 3050

Two speed motor, modifiable/useful for EV?

The ABB link is to Single Phase motors Document. ??? Is this better for "Product code is 3GAA168305-ADA" See page 40pdf 90 on doc http://www05.abb.com/global/scot/scot259.nsf/veritydisplay/d382b8371d1e7db3c125725a00445de8/$File/PPM_%203%20LV%20Aluminum%20motors%20%20EN%2012-2006.pdf Also the Search ...
by 7circle
Tue, 20 Apr 2010, 10:15
Forum: General EV Discussion
Topic: Why get an EV?
Replies: 311
Views: 26630

Why get an EV?

Well $70k would of helped with my old scrapped project. http://forums.aeva.asn.au/uploads/1268/Volvo_1800_Green_Rear_Low_Res.JPG Turn into one of these full of Lithium. http://forums.aeva.asn.au/uploads/1268/62_cust_id_154_-_Fantasie_car.jpg I was blown away when Volvo Calafornia Design Team (Ford ?...
by 7circle
Thu, 15 Apr 2010, 08:50
Forum: General EV Discussion
Topic: E-Scooter Project
Replies: 45
Views: 5063

E-Scooter Project

I would not cut the wires used to connect to the motor. Can't you access the connector terminals? And can your multimeter do 100A (or 1000A)? If it was a clamp-meter then okay. I would assume you have a Multimeter that can measure AC/DC current up to 10A. If you use very firm/good connections to one...
by 7circle
Thu, 04 Feb 2010, 04:21
Forum: AEVA QLD Branch
Topic: Electric Motors
Replies: 6
Views: 3084

Electric Motors

Wow shyouss "One of the interesting articles that I read recently was the use of SUPERCONDUCTORS and liquid nitrogen to minimize electric resistance and inducing more magnetic fields in an EV electric motor. Does anyone knows if this technology has been used in a significant scale in any EVs yet?" M...