Electronic Fuel Pump Control
The DME calculates the delivery rate of fuel required on the basis of the vehicle's operating status. The figure calculated is sent in the form of a message to the SBSR (right B-pillar satellite).
The original message (PT-CAN signal) is converted by the ZGM to a byteflight message (fibre-optic signal). From the ZGM, the message is passed via the byteflight to the SIM, which passes it to the SBSR.
The electronic evaluation unit integrated in the SBSR converts the signal to a PWM signal. That PWM signal controls the electronic fuel pump (EKP). The required fuel delivery rate can now be provided by the electronic fuel pump.