Autonomous Emergency Braking, AEB, is an automatic emergency braking system, which is mainly composed of three modules: ECU control, Radar ranging, and Brake.
Its working principle is that the ranging system composed of ultrasonic radar, millimeter wave radar, camera and face recognition technology will capture the road condition information, and the ECU will make a collision warning command or the braking system will execute the emergency braking command according to the background data analysis and calculation.
Autonomous driving assistance
Since 2015, AEB has gradually become a must-have active safety system for automobiles in the global automotive industry, and it is also a key component of the currently popular autonomous driving concept. However, in China, this ordinary function seems to have been hyped too much by some new car-making forces and is about to be broken.
There is no doubt that driver assistance functions can improve the comfort and safety of human-driven cars, but the technical needs cannot be achieved overnight, and it always takes time and process to develop.
Whether it is Wenjie, Ideal, Xpeng, NIO, Tesla, General Motors, Ford, Hyundai Kia, and other car brands that are at the forefront of the times, ensuring that the AEB function is triggered within 70 kilometers per hour and the successful braking is enough for them to brag for two years.
Of course, the autonomous driving assistance system cannot rely on AEB alone, it also needs to cooperate with ACC, LKA, ALC-Adaptive Cruise Control, -Lane Keeping Assist, and -Auto Lane Change to form a relatively complete assisted safe driving link.
Autonomous driving assistance
The ACC adaptive cruise control system is responsible for active cruise control in the speed domain and adjusts the speed and distance of vehicles in real time, the LKA lane keeping system is responsible for real-time monitoring the relative position of the vehicle and the lane marking, and performs the tasks of lane centering and lane keeping.
Doesn't that sound complicated? It's because it's complicated that it's not easy to do.
All the car brands have casually spewed out intelligent driving, so far has stayed at the level of assisted driving, and there is no best, only better, and even if you want to do better, you need to rely on better high-precision maps or Starlink, faster image transmission, wider coverage, accumulation of richer information data, equipped with stronger computing power chips and more number of high-performance radars, cameras and sensors, as well as more stable and accurate steering and braking systems.
Autonomous driving assistance
Relatively high-level assisted driving integrated system, at present, it can complete the ADS-Advanced Driving System intelligent driving or NOA-Navigate on Auto Pilot automatic navigation assistance driving function under specific conditions without manual intervention, and after the ADS or NOA function is activated, the vehicle can achieve automatic navigation on highways and urban roads, and realize autonomous lane change and overtaking. But this does not mean that the driver can sleep happily, we still need to pay attention to the system reminders at all times and respond to them in a timely manner.
It is also important to note that the system integration and subsystems and sensors must ensure proper operation and redundancy, as well as a high degree of support for timely OTA upgrades.
Isn't it more complicated to say this?
Yes, the more complex it is, the more it feels technologically advanced, and the more it feels temperamental.
However, the more complex it is, the more faults there are, and the harder and more complex the mowing, the worse the safety is likely to be.