Votronic D+ Simulator

The VOTRONIC D+ simulator is used to record the charging mode in a 12 V vehicle electrical system.
If additional consumers are only to be switched on when the alternator is supplying current while the engine is running or if the on-board battery is to be charged via an isolating relay by interconnecting the on-board battery and starter battery, the D+ contact of the alternator is used to determine the charging mode of an alternator. If this is not accessible or not available on newer alternators, the VOTRONIC D+ simulator generates this signal by monitoring the starter battery connected to the alternator.

Note: The device is not suitable for use in vehicles that comply with the Euro 6 standard, as the alternator management system cannot be used to draw conclusions about a running or stationary engine from the starter battery voltage.