According to foreign media reports, the Audi A8 is equipped with high-end driver assistance technology, which covers almost every aspect of the highly automated driving field. Three of the technologies debuted in the new Audi A8: 1. Audi artificial intelligence traffic jam navigation system (traffic Jam pilot), this system is the first congestion navigation function on the market to achieve the three-level automatic driving level; 2. Audi AI remote parking pilot; 3. Audi artificial intelligence remote garage navigation system ( Audi AI remote garage pilot). Audi is working on the development of an automated driver assistance system. The core of the system is the Central Driver Assistance System Control Unit (zFAS), which completes its debut in the new Audi A8.
Audi artificial intelligence traffic congestion navigation system
The Audi artificial intelligence traffic congestion navigation system is a three-level automatic driving system. In some specific cases, the system will take over the driving control of the Audi A8, while the driver does not need to continuously monitor the driving and running of the vehicle, eliminating the need for secondary automatic driving. The trouble. Only when the vehicle system issues a prompt, the driver needs to re-take control of the vehicle as required.
The driver only needs to press the “AI button†on the center console. If the vehicle is traveling at a speed of less than 60 km/h (approximately 37.3 mph) on the two-way highway, the system will Take over the driving operation of the vehicle, control the start, acceleration, steering and braking of the vehicle, so as to facilitate emergency response in case of emergency, such as: too close to the vehicle ahead (there is a possibility of rear-end collision).
Highly automated driving requires the acquisition of a signal from a traffic jam navigation system, which is issued by the Central Driver Assistance System Control Unit (zFAS). After activating this function, the driver can relax and take his hands off the steering wheel (depending on the laws of each country) and turn his attention to other functions provided by the vehicle, such as through the central control display. Watch the TV show (10.1 inches). In this case, Audi virtual cockpit will provide abstract representation technology, using abstract symbols to show the driving dynamics and surrounding environment of the new Audi A8.
During driving, the small camera in the driving area will probe the driver's condition and see if he feels tired or falls asleep. If this happens, the system will enable multi-stage warning. When the speed exceeds 60 km/h (approximately 37.3 mph) or the road ahead is no longer congested, the system will notify the driver that the driver will take over the driving control of the vehicle. If the driver ignores the prompt message and warning, the new Audi A8 will slowly slow down until it stops.
The introduction of this system requires a clear statutory framework for each automotive market, and countries should clearly define the system application and testing regulations. In addition, the activation of this function needs to be clear and adhere to the relevant approval procedures and corresponding timetables of countries around the world. Audi will gradually deploy this traffic jam navigation system for its production models.
Audi artificial intelligence remote parking navigation system, Audi artificial intelligence remote garage navigation system
With the introduction of the Audi artificial intelligence remote parking navigation system and the Audi artificial intelligence remote garage navigation system, the Audi A8 will automatically execute and complete various parking and driving into the garage without personnel operation. These two systems will also take over steering wheel, accelerator, brake, automated manual steering and other dynamic all-wheel steering options and perform related vehicle handling.
The innovation of this technology is that the driver can watch the entire parking process of the Audi A8 outside the car. They only need to open the myAudi app in the smartphone and click the "Audio Artificial Intelligence" button to start the related operation. For easy monitoring, the driver needs to press the button all the time and view the live video through the car panoramic camera installed on the smartphone. When the parking operation is completed, the system will automatically adjust the gear of the manual transmission to the P position, and then the engine will be cut off and turned off.
When the driver is ready to drive away, the Audi A8 can be activated via a smartphone to drive the vehicle out of the parking space or garage. If the driver is in the car, he/she can also activate the AI ​​button on the center console to enable the parking navigation function. The button needs to be pressed all the time throughout the process.
The Audi A8 achieves precise steering when driving into the garage. After entering the garage, the A8 is very close to obstacles such as walls or bicycles. If there is not enough space inside the garage, the operation of driving into the garage will be interrupted. This feature benefits from an innovative laser scanner that is not yet available on other competing models of the Audi A8.
Sensing device such as sensor + radar + camera
The new Audi A8 is equipped with a complete range of new sensors, including:
12 ultrasonic sensors are arranged at the front of the vehicle, at the side of the vehicle, and at the rear of the vehicle;
Four 360-degree panoramic cameras at the front of the vehicle, at the rear of the vehicle and at the exterior rear view mirror
A front camera is placed on the upper edge of the windshield
Four medium-range radars are placed at each corner of the vehicle
One long-range radar is arranged at the front of the vehicle
An infrared camera is installed at the front of the vehicle for night vision assistance.
Laser scanner at the front of the vehicle
zFAS and sensor fusion
So far, the driver assistance system has been controlled by a separate control unit, and Audi is the first car company to concentrate all functions in the central domain architecture. Its functional product portfolio, required sensors, electronic hardware and software architecture are all concentrated into a single central control system. From the very beginning, Audi has focused on the development of this technology and is particularly concerned with the safety concept.
Since zFAS will package and process a large amount of sensor information, the overall modeling of the vehicle's surrounding environment is extremely fast and provides information for all driver assistance systems. Therefore, zFAS is the central interface for all autonomous driving functions.
Artificial intelligence and machine learning technology
Artificial intelligence will soon realize the response of autonomous vehicles to highly complex situations, and its operating level is even better than that of real people. Artificial intelligence devices are mainly capable of improving their capabilities through machine learning technology.
Therefore, mechanical learning is a prerequisite technical condition for artificial intelligence, and its technical basis is mathematics and statistics. In most cases, related methods and rules can be found through operations, and decisions can be made on this basis. Not long ago, researchers also studied artificial neural networks and made great progress. Deep learning is constantly improving the ability of the computer "brain network", and has extremely high requirements for computing power and various types of data.
The most important application areas for machine learning are target recognition and environmental recognition. In the Audi A4, A5, Q5 and Q7 models, Audi has a target recognition system designed to help achieve supervised learning. To this end, specialized training machines have also been used. The learning process has been completed before the vehicle production is completed. The Audi A8 also uses supervised learning and is used to achieve target recognition. The Audi A8 can also detect empty parking spaces, a feature that is the main performance requirement of the new Audi artificial intelligence traffic jam navigation system.
Laser scanner
Audi's laser scanner is located in the front bumper, which is only the size of a fist and emits light impluse in several vertical planes. It is mirrored to a fan-shaped area of ​​80 meters (262.5 inches) with a beam plane of 145 degrees. The wavelength of the short-range infrared flash makes it impossible for the naked eye to see such a beam, so it does not cause damage to the human eye.
When the beam encounters an object in front of the vehicle, it will reflect the laser scanner, which takes less than 1 microsecond. The vehicle completes the relevant detection work through the photodiode, and then generates a detailed image of the surrounding environment of the vehicle. The long-range radar, front-facing camera and laser scanner together form a group of sensing devices, each with different wavelengths, just to complement each other and play a role.
The laser can detect various types of targets (including non-metallic substances), its progress is high, the beam angle is wide, its detection ability is better than radar, the detection distance can reach 250 meters (820.2 feet), and the height can be detected. The target can be continuously read even in the rain or in the fog.
If the front camera is limited in function due to insufficient illumination, the laser scanner and radar can cooperate with each other in the dark to perform exploration. When the line of sight condition is good, high-definition images near and around the vehicle (middle distance) can be generated. Thanks to its powerful image database, the system can classify different types of objects, such as cars, trucks, cyclists and pedestrians. For the first time, Audi's image processing system uses a deep learning method that uses neural networks to help self-learn and identify various targets, making it another technological advancement to boost autonomous driving.
With the highly interconnected sensing technology, the new A8 responds quickly to targets. When it detects a traffic jam, the brake function is activated. Audi's navigation system also benefits from data fusion technology, enabling vehicles to accurately identify where they are in a variety of environments.
Audi A8 has 41 driver assistance systems
The new Audi A8 is the fourth generation, with 41 driver assistance systems, and the Audi Group divides its auxiliary system into three suites: Park, City and Tour.
The newly developed crossroad driving assistance is a City accessory kit. When the medium-range radar can detect significant traffic conditions at the intersection at the front of the vehicle, the system will alert the driver to activate the brake function if necessary. The new Audi A8 will also alert drivers to the risk of changing lanes. When the door is opened, the exit warning system will also alert the driver if there is a vehicle or motorcycle approaching behind the vehicle.
Another feature of the kit is a 360-degree panoramic safety system that detects the surroundings of the vehicle, identifies potential collision risks, and provides available precautions – decide to use full brakes or adjust the seat or tighten seat belt. The Audi artificial intelligence active suspension system can lift the body on the side of the collision before the collision occurs, and the vehicle can offset the external force caused by part of the impact and improve safety.
The Tour Control Kit's central control system is an adaptive driving assistant (ADA) that is upgraded based on the adaptive cruise system used in the previous model, integrating lane assist and driving congestion assistance. This means that the system will provide both lateral and vertical control for the driver, with speeds ranging from 0-250 km/h (155.3 mph).
The Audi A8 is the only vehicle that automatically responds to speed limits, corners, road junctions and toroidal roads with automatic acceleration or braking without human intervention. This model also automatically maps the road information provided by the navigation system.
Audi preventive
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