Quote:
Originally Posted by TurnNBurn
So an ardiuno wont work. Hmm. What about the gamber BMS stuff?
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That's not what I said. An Arduino will work great. The amount of resolution you desire will determine how many Arduino boards you will need. A single Arduino with a Mux Shield will give you a 0.1V resolution on a 72V car and three will give you a 0.035V resolution. Not difficult to set up. I am going to change my tune and say that even 0.1V resolution is good enough, especially if you keep it conservative and don't try to charge/discharge to the limits.
Gamber's system is very very good. I met up with him when I was in Calgary a couple of months ago and saw his system on his motorcycle. You can adjust shunting voltage with the menu screen. All voltages are displayed. Fully customizable. However, it is a top balancing system, which I feel is fundamentally flawed to begin with. Like all other top balancing BMS, it is always shunting current at the top of the charge, trying to keep everything even. Completely unnecessary if you bottom balance.