Audio System Controller
As audio system controller, CHAMP has the following tasks:
- System master controller
The system master controller links the individual control modules in CHAMP.
- Power master controller
The power master controller initializes the network and switches the MOST bus on and off (wake-up, Sleep mode).
- Network master controller
The network master controller controls and monitors the MOST bus. Every time the network is started up, the exact system configuration is scanned and compared with a saved target configuration. If systems are not working correctly, they are reset and disconnected from the MOST bus. Every fault during operation of the network or every deviation from the target configuration is saved in a fault memory for the MOST bus.
- Audio master controller
The audio master controller collects all the audio signals in the vehicle, processes the audio signals and outputs them across the loudspeakers. The audio master controller also creates acoustic signals for warnings and the Park Distance Control (PDC). Mixing or fading in and out achieves a "soft" acoustic switch between the signal sources.
- Connection master controller
The connection master controller distributes the signals of the audio sources and the acoustic signals to the loudspeakers. The signals are distributed to the loudspeakers as follows:
- Front left and right (acoustic signals, telephone, traffic reports)
- Front left and right, rear left and right (signals for parking-aid Park Distance Control, PDC)
- All loudspeaker (all sources of the menu "Entertainment")