Why is a such complicated control system necessary? In the sample with water supply: if the tank is overfilled, the water will pour over the sides – will be lost if the tank will be empty – our “business” will suffer. We can calculate even evaporation of the water – equivalent of self-discharge of the battery.
![bmw tool32 battery registration bmw tool32 battery registration](https://xoutpost.com/attachments/x5-e70-forum/57567d1358285778-e70-battery-replacement-diy-xoutpost1.jpg)
Exactly in the same way the battery management system takes in account aging of the battery (which is proportional to its life cycle, increases – when the temperature increases, when starting the car, etc.) We can take into account, that the tanks clogged by time, and each draining decreases the mechanical efficiency of the tank. This is exactly the same way, how the battery management system “knocks” the battery – measures it’s inner resistance (chemical efficiency). We can “knock” by the tank – the hollow the sound, the fuller the tank. This is exactly the way, how the battery management system works -“takes” the exact amount of energy (Ah – amper hours) from the battery and measures voltage on the clips before and after this process. To increase the precision of this measurement, we can regularly drain the exact amount of water and measure it, comparing to the etalon. Unfortunately, this measurement is not exact – a significant decrease of the jet we will see only then when there will be very small amount left in the tank – the same is with battery: a significant drop of the voltage can be seen only then when the battery is already practically drained. This test would be equivalent to measuring the voltage of the battery on the clips.
![bmw tool32 battery registration bmw tool32 battery registration](https://m.media-amazon.com/images/I/61L1JJNfMZL._AC_SL1409_.jpg)
BMW TOOL32 BATTERY REGISTRATION FULL
The tank is opaque – we don’t see the fulfillment visually (the same is with a charge level of the battery – we don’t see it directly).īut we can use several tricks, to find out, how full the tank is.Īt first – we can evaluate, how strong is the jet, when we open the tap. The amount, how much we fill/pour it – we see/know (it’s measured by IBS). By one pipe we fill the thank, by other – when necessary, pour it out. Let’s suppose, that we have a small “business” – we supply water for the neighborhood.
![bmw tool32 battery registration bmw tool32 battery registration](https://i.ytimg.com/vi/0Ih5IxqvAck/maxresdefault.jpg)
To make it easier to understand, how does the IBS and all battery management system works, I suggest to view it in the following way. In this entry, I will gather information, which can not be found in BMA AG materials (links to them – at the end of this entry). There are a lot of different opinions regarding coding and registering the change of the battery, but it’s impossible to find exact and correct information.