Idle speed increase
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To prevent a negative charge balance of the battery, the power management can request an increase in the idle speed of the combustion engine. Depending on the engine version, the idle speed is raised by up to 200 rpm. An idle speed increases activated under the following preconditions:
- Quality of the calculated battery charge state adequate and battery charge state below a specified limit.
- High utilization of capacity of the alternator for a certain period.