Battery Monitoring System Block Diagram

The chapter describes various aspects of battery management systems for lithium ion batteries.

Battery monitoring system block diagram. Cell voltage measurement temperature measurement cell balancing and isolated communication to main battery controller. Resolution of voltage and temperature measurement on cell level accurate current sense on pac. Purpose monitoring of stacked lithium ion batteries as used in hybrid electric vehicles battery backup applications and power tools. The lithium ion batteries can be used only in specified conditions and therefore battery management system bms is necessary in order to monitor battery state and ensure safety of operation.

The tle9012aqu is a multi channel battery monitoring and balancing system ic designed for li ion battery packs used in automotive industrial and consumer applications. Battery management systems bms require. We have implemented battery monitoring system which is capable to measure electrolyte temperature electrolyte. These applications are cost sensitive and require a simple solution that includes monitoring protection and control or even soc state of charge information rather than only basic independent hardware protection.

It is used to collect all data coming from slave via rs232. An internal 3 ppm c reference is provided that allows a cell voltage accuracy of 1 6 mv. The part has multiplexed cell voltage and auxiliary adc measurement channels for up to six cells of battery management. Tle9012aqu fulfills four main functions.

Block diagram of a slave unit is shown in figure 1 b. High serial cell count battery 15s systems are becoming more and more common for industrial applications. Andrea vezzini in lithium ion batteries 2014.