BMW G12 2015 Technical Training Manual page 64

G12￿Voltage￿Supply￿and￿Bus￿Systems
3.￿Voltage￿Supply
3.2.4.￿Intelligent￿battery￿sensor
The￿Intelligent￿Battery￿Sensor￿(IBS)￿records￿the￿following￿data￿of￿the￿12 V￿battery:
• Voltage
• Current
• Pole￿temperature
The￿IBS￿performs￿the￿calculation￿and￿the￿evaluation￿of￿the￿information.￿The￿results￿are￿then￿forwarded
to￿the￿superior￿control￿units￿via￿local￿interconnect￿network￿bus￿(DME￿and￿BDC).
3.2.5.￿Battery￿Safety￿Terminal
Battery￿safety￿terminal
The￿Battery￿Safety￿Terminal￿(BST)￿is￿activated￿in￿the￿event￿of￿an￿accident￿of￿corresponding￿severity.
The￿voltage￿supply￿to￿the￿positive￿battery￿connection￿point￿in￿the￿engine￿compartment￿is￿interrupted
and￿the￿consumers￿connected￿to￿this￿are￿de-energized.￿The￿Battery￿safety￿terminal￿is￿installed￿in￿the
power￿distribution￿box￿next￿to￿the￿battery.
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