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Cleaning aluminium oxide off terminals

Posted 04-15-2013 at 04:47 AM by sabahtom

Wiring up the pack. After doing 70% of it, I read on evworks that it's a good idea to clean the terminals with a wire brush to remove aluminium oxide. So disconnected all the cells and BMS cabling. A whole day "wasted" - except that it will hopefully perform better with the lower resistance. I was surprised at the change in colour/albedo on some of the terminals, I'd never noticed they were oxidised.
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BMS working

Posted 03-16-2013 at 08:47 AM by sabahtom

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I don't want to pay up for a DC-DC unit until I can see the rest of it working. So I've been using a PC 500w ATX power supply for the 12v that my BMS needs. It may be enough to run the motor controller too, with the back wheels jacked up so I can see them spin. After 2 years of dragging on I would like that.

Unfortunately I mislabelled the outputs so I've been struggling to get the BMS to run on 5v without knowing;...
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BMS test

Posted 03-08-2013 at 08:46 AM by sabahtom

Motor is in, main cables are crimped. Now testing BMS.

BMS is HiPower OEM. So far it powers up but doesn't collect data, only beeps at me and says theres no connection from the main data module to the data collection modules.
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Rating: 3 votes, 5.00 average.

Etiquette In Charge

Posted 01-04-2013 at 05:14 AM by bruceme
Updated 01-04-2013 at 05:19 AM by bruceme

It's applaudable to see so many plug-in vehicles on the roads... but at the public charge; it's a shock. Here's a scenario philisophis electricus:

You are beyond the range of no return... You pull into your strategic public charger to find it occupied by, let's say a Volt. You can not get home, the Volt of course, can. Do you unplug it?

Comments please...
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Rating: 30 votes, 4.97 average.

Is an AC motor in your future?

Posted 12-23-2012 at 06:53 AM by mizlplix
Updated 05-14-2013 at 05:50 AM by mizlplix (Removed large welcome title)

All major car makers use AC propulsion systems for a reason.
That reason is simplicity, robustness and excellent, programmable
operating parameters.

For the past year, there has been a group of people studying
AC propulsion systems. They all eventually noticed the huge
gap in the AC motor offerings from the many motor manufacturers.

The present AC50 and soon to be AC75 systems are at the top of
the "lower" cost systems...
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