Self Study Program 990393 – The 2019 Audi A8 Driver Assistance Systems

VAG SSP 990393. When it comes to the Audi A8, each model change marks the premiere of innovative solutions and new automotive systems. Each new Audi A8 model broadens the spectrum of driver assistance systems and extends the range of situations in which drivers are assisted by cutting-edge technology.

The 5th generation of the Audi A8 includes new features such as intersection assist – a system that assists drivers in impaired visibility situations such as at intersections and obscured exits. The system helps the driver to avoid collisions with cross-traffic ahead of the vehicle by issuing several different types of warning.

Adaptive cruise assist is also featured for the first time in the Audi A8. It assists the driver by providing longitudinal and lateral control assistance over a continuous speed range from 0 to 155.3 mph (0 to 250 km/h). This system combines several driver assistance systems featured previously in other Audi models.

A new laser scanner is being used for the first time. It is located at the front end of the vehicle and enhances the performance of existing systems by precisely surveying the area in front of the vehicle. New driver assistance systems would not be possible without it.

The 2019 Audi A8 utilizes, for the first time at Audi, a central driver assistance systems control module which acts as the master control for multiple assistance systems. Its service designation is Driver Assistance Systems Control Module J1121. It replaces several control modules whose functions are now integrated in J1121.

Several sensors are connected directly to J1121 but no longer utilize an in-car bus system. The sensor data is processed in J1121. This applies to the front camera for driver assistance systems and the four surround view cameras. In turn, J1121 receives data from the other sensors via the FlexRay bus.

The fact that all sensor data is now available in a single control module means it is possible to supply functions with high-quality data on the area around the vehicle. This, in turn, is the basis for further improvements in the performance of the various driver assistance systems.


  • Introduction
  • The new Audi A8 driver assist systems
  • New driver assistance systems for longitudinal and lateral control
  • Active lane departure warning
  • Switching on and off
  • Displays
  • Master control module
  • Adaptive cruise assist
  • Introduction
  • Displays and operation
  • Longitudinal control
  • Overview
  • Predictive efficiency assist
  • Lateral control
  • New features of the vehicle’s lateral control function
  • Functional configuration and sensors required
  • Control modules partnered to adaptive cruise assist
  • Emergency assist
  • Function
  • Time sequence of active emergency assist processes
  • Time sequences of emergency assist processes during vehicle operation without assist systems activated
  • Time sequence of emergency assist processes when driving with adaptive cruise assist
  • Parking systems
  • Parking system plus
  • Rear view camera
  • 3rd generation surround view cameras
  • Profile master for driver assistance systems
  • Structure
  • Operating concept
  • System configuration
  • 2nd generation matrix LED high beam assist
  • Operating the system and setting options
  • Additional functions
  • System networking
  • 3rd generation camera-based traffic sign recognition system
  • Rear radar based driver assistance systems
  • New features of side assist
  • Turn assist function of side assist
  • Use of turn assist in other traffic scenarios
  • New features of the exit warning system
  • New features of cross-traffic assist
  • Intersection assist
  • Functional description
  • Intersection assist sensors
  • Warnings of intersection assist
  • Driver information
  • System networking
  • Driver Assistance Systems Control Module J1121
  • Installation location of J1121
  • J1121 and its inputs
  • J1121 – Version A0
  • J1121 – Version A
  • J1121 – Version B
  • J1121 – Version C
  • Laser Distance Regulation Control
  • Module J1122
  • Design and function
  • Control Module for Adaptive Cruise
  • Control J428
  • Design and function
  • Operation and driver information
  • Service operations
  • eSelf-Study Programs

Language: English
Format: PDF
Pages: 76

Self Study Program 990393 – The 2019 Audi A8 Driver Assistance Systems