Ibs (Intelligent Battery Sensor Or Battery Monitor) And Dummy Negative Pole - Fiat TIPO Handbuch

IBS (Intelligent Battery Sensor or Battery Monitor) and dummy negative pole

The IBS (Intelligent battery sensor) (A) is an electronic unit which informs the BCM of the battery
operating conditions. This prevents an engine shutdown in the case the charge conditions or health
of the battery are inadequate.
The information produced by the IBS and sent to the BCM through the LIN network is used for the
management of the Stop/Start function to take the battery starting capacity into consideration.
In particular, this information is used, in conjunction with other information coming from other vehicle
devices/control units, to activate or deactivate the Stop/Start function.
The general concept is that, whilst the engine is on it should not be stopped automatically if the
capacity of the battery is not sufficient to start it and, during an automatic stopping stage, the engine
should be restarted if the battery start-up capacity becomes too low.
The Stop/Start function is also deactivated if a possible IBS fault does not allow the effective battery
status to be determined: an internal error signal is generated in the BCM to this end.
The Stop/Start is primarily managed by the ECM which decides whether to activate/deactivate the
Stop/Start taking a great deal of information into consideration, including data coming from the IBS
(through the BCM).
NOTE.
The BCM and ECM can also deactivate the Stop/Start function as a result of vehicle
conditions not connected to the IBS.
For more details on other conditions that can deactivate an automatic stop or cause automatic
restarting of the engine, refer to the specific paragraph in this document.
IBS – Operation
The IBS performs the following measurements:
Battery voltage (V)

 Battery current (A)
 Battery temperature (°C)
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