Quote:
Originally Posted by harlequin2
For anyone interested in building this, the relevant files should appear on the wiki soon. Its fairly straightforward, but does use all smd parts, so if you haven't worked with these before, bite the bullet and get into it! I reckon smd's are easier to assemble than thru-hole parts, once you get the hang of it.
I do have pcbs available and also can supply them with the micros mounted and programmed if you wish. Send me a PM if interested, although all the info needed to make your own is included.
A quick overview:
Each cell has its own module which bolts directly to its terminals. These modules use a PIC micro to measure the cell voltage and temperature, and the have a 6R8 shunt which can be turned on or off for balancing. The controller talks to all of the modules via a "daisy-chain" comms link and collects voltage and temperature data. It displays the max and min values on a LCD and also the total battery voltage. It also controls cell balancing via the shunts and by controlling the charger.
Have at it!
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Hi
I am very interested in building your BMS, but i would like to add SOC meter for measuring current in/out of battery. That means putting shunt or hall probe on battery main cable as well as charger port input cable. That way i would know how much current passed in/out of battery at all times. Could that be done on your main board and LCD as they are? Ie, only adding some componnents and two ammeter plugs...
The problem is i have an idea, but i am mechanical engineer, not electrical. I have basic knowledge on PCB assembly, but not circuit design. Could you help me? And the rest of EV world
.
TNX
Arber