Calibration and maintenance
For ADAS to function correctly, the cameras and sensors must be precisely aligned and calibrated. This is crucial after a collision, windscreen replacement, or wheel alignment, as even minor misalignments can affect system functionality. Special diagnostic tools are required to perform the calibration, a procedure that has become a standard part of modern vehicle maintenance.
Common Audi/Volkswagen ADAS features
Cruise control and speed assistance
- Adaptive Cruise Control (ACC) with Stop & Go: This system maintains a preset speed and distance from the vehicle ahead. In heavy traffic, it can bring the car to a complete stop and automatically resume driving.
- Adaptive driving assistant: An advanced system that builds on ACC by taking over acceleration, braking, and steering on well-marked roads up to 210 km/h (about 130 mph).
- Predictive efficiency assist: This feature uses navigation data and traffic signs to help the driver save energy. For example, it will prompt the driver to lift their foot off the accelerator when approaching a speed-limited area.
Collision avoidance and safety
-
Audi pre sense: This feature monitors the vehicle's surroundings to detect potential collisions and can initiate protective measures in anticipation of an accident.
- Audi pre sense city: Monitors traffic and pedestrians in front of the vehicle and can apply emergency braking.
- Audi pre sense rear: Monitors traffic behind the vehicle and tightens seatbelts or closes windows if a rear-end collision is anticipated.
- Collision avoidance assist: If the driver must swerve to avoid a collision, this system provides steering support to help maneuver around the obstacle.
- Turn assist: When making a left-hand turn, this system monitors oncoming traffic and can apply the brakes if necessary to prevent a collision.
Parking and maneuvering
- Park assist: This technology helps the driver locate a properly sized parking space and can automatically steer the car into it. The driver remains in control of the accelerator and brake.
- Rear cross-traffic assist: When backing out of a parking space, this feature monitors for approaching cars and warns the driver of any detected vehicles.
- Vehicle exit assist: A safety feature that warns passengers not to open a door if it detects an approaching car or cyclist from the rear.
- 360-degree camera (Area View): Provides a surround view of the vehicle's environment, assisting with parking and maneuvering in tight spaces.
Visibility and lane guidance
- Lane Departure Warning/Lane Keep Assist: This system detects lane markings and alerts the driver with steering input if the vehicle begins to drift out of its lane unintentionally.
- Audi side assist: Monitors blind spots and issues a visual warning on the side mirrors if it is unsafe to change lanes.
- High beam assist: A camera-based system that automatically switches between high and low beams based on ambient light and approaching traffic.
- Night vision assistant: Uses a long-range infrared camera to detect objects such as pedestrians and large animals, displaying the thermal image on the instrument cluster.
The technology behind Audi ADAS
Audi's ADAS systems rely on a combination of sophisticated hardware and software:
- Sensors and cameras: Radars, ultrasonic sensors, and cameras are positioned around the vehicle to gather real-time data about its surroundings.
- Map data and "swarm" data: Recent Audi models, like the A5 and Q6 e-tron, use high-resolution navigation data and aggregated information from other vehicles (swarm data) to predict routes and optimize driving behavior.
- Central control units: Advanced processors handle the high volume of data from the sensors to ensure quick, accurate decisions.