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Idle Speed "Jack" Feature

As part of the vehicle power balancing strategy there is a feature to increase the engine idle speed to a set point when the EMS2000 system voltage reaches a certain threshold. The engine speed will remain at this point for a period of time before returning to the normal set point when the system voltage has recovered.

Fig 1: Idle Speed Graph
G04724671Courtesy of BMW OF NORTH AMERICA, INC.