Autonomous emergency braking system (aeb) ppt.ppt

Full detailed power point presentation on autonomous emergency braking system (aeb).

1. NAME – BIBISAR NAYAK ROLL NO – 21-ME/29L A SEMINAR ON Autonomous Emergency Braking (AEB)

2. INTRODUCTION WORKING PRINCIPLE IMPORTANCE OF AEB AUTONOMOUS BRAKING VS ANTI-LOCK BRAKES AEB MANUFACTUERES ADVAN TAGES DISADV ANTAGES CONCLUSION

3. INTRODUCTION AEB, which was introduced in  2009  by Volvo, works by using radar systems to measure the distance to any vehicle in front of you, and then react if that distance suddenly starts getting smaller at a great rate of knots - usually because the object in front of you has come to, or is coming to, a sudden stop. Autonomous Emergency Braking or AEB is an active safety feature in cars that automatically applies the brakes in emergencies. Car manufacturers use different brand terms for AEB, such as automatic emergency braking, brake assist, brake support, etc. AEB, as the name suggests, is an automatic braking system. The system detects obstacles (pedestrians, vehicles, etc.) and automatically applies the brakes or increases the braking force if the driver is applying the brakes insufficiently. AEB can slow down the car and stop the vehicle, depending on the speed, to avoid a potential collision. It's a highly efficient safety feature as it assists the driver or automatically applies the brakes if the driver fails to do so. the driver’s attention is required to avoid the collision, even with the AEB intervention.

4. Graphical representation of AEB

5. Different types of AEB depending on the make and mode l Forward automatic emergency braking : In this type of system, AEB works in conjunction with the Forward Collision Warning (FCW) system. FCW alerts the driver by sound or a visible sign on the dashboard. Generally, FCW activates before AEB kicks in. First, the FCW warns the driver about the obstacle ahead, and if the driver fails to take appropriate action, the automatic braking system intervenes. Rear automatic emergency braking : It is a system where AEB comes into action if it detects any obstacles while reversing the car. It can be more of a convenience feature than a safety feature. In some vehicles, the rear AEB works with the rear cross-traffic alert, which detects the movement of vehicles behind your car when you are reversing. Reverse automatic braking can be helpful when reversing from a very tight parking spot. AEB with pedestrian detection : This system is similar to forward AEB, where the autonomous braking system pairs with the forward-collision warning system capable of detecting pedestrians, cyclists and even large animals. If the FCW detects any pedestrians in front of the vehicle, the AEB applies the brakes to slow down or stop the car, provided the driver does not engage the brakes. City speed AEB : As the name suggests, the system prevents collisions in cities, heavy traffic or parking lots. In other words, the city speed AEB works only at lower speeds. For instance, if you are driving on the road with bumper-to-bumper traffic, the AEB-city can avoid rear-ending a vehicle if you fail to apply the brakes in time. It’s a handy safety feature as it can prevent slow-speed collisions in cities. Highway speed AEB : The name of the system is self-explanatory. In this system, the AEB works at high speeds, especially when driving on a highway. The AEB-highway system uses more advanced sensors to detect far-away obstacles. However, this type of automatic braking system can only slow down the car as much as possible before the collision, and it cannot bring the vehicle to a stop. So,

6. WORKING PRINCIPLE AEB driver assistance system works with the help of a network of radar sensors mounted on the front grille, bumpers or windshield. Some systems also rely on cameras, and some advanced systems use both radar sensors and cameras. Initially, the use of radar sensors and cameras came into effect to enable the Adaptive Cruise Control feature, and AEB also relies on the same set of equipment. P oints to understand the automatic emergency braking system working mechanism: The sensors and/or cameras constantly monitor the distance between your car and the obstacle (moving car, pedestrian, etc.) ahead.  If the distance reduces rapidly, for instance, if the vehicle in front brakes suddenly, the system immediately triggers a warning.  The driver receives an alert message via an audio or visual medium. The ECU (Electronic Control Unit) monitors your input and can detect when you are off the throttle and applies the brakes manually. So, AEB will not kick in unnecessarily.

7. The Anti-Lock Braking System (ABS) helps AEB stop/slow down the vehicle efficiently. The entry-level AEB systems work only at slow speeds. They can be helpful when you drive in the city . If you are too late to react, the AEB comes into action and automatically applies the brakes. The more sophisticated automatic braking systems work across a wider speed range. Hence, they may avoid or mitigate the intensity of a high-speed collision. The most advanced AEB systems can also detect stationary objects, moving pedestrians, cyclists and cars.

8. IMPORTANCE OF AEB AEB is an efficient active safety feature in cars. The points below explain the importance of the automatic braking system in cars. AEB can avoid a potential collision or reduce the magnitude of impact in case of a high-speed collision. Since AEB is an automated system, the reaction time is way quicker than human reaction time. The quick reaction time during braking can save your and other motorists' lives. An autonomous emergency braking system comes in handy if the visibility is too low. The system can detect obstacles and brake automatically, even if the visibility is low. AEB is an important safety feature, especially during night drives. If you fail to notice any obstacles or your reaction time is too slow, it will come to your rescue.

9. AUTONOMOUS BRAKING VS ANTI-LOCK BRAKES

10. AEB MANUFACTUERES D ifferent car manufacturers have different names for the autonomous emergency braking system. Refer to the table below to know the terms of AEB systems by different car manufacturers.

11. As of March 2022, only a few luxury and premium car brands offer automatic emergency braking. Below are the cars with autonomous emergency braking in India. SUVs (Sport Utility Vehicle) with AEB: MG Gloster MG Astor Mahindra XUV700 Volvo XC40 Volvo XC60 Volvo XC90 Mercedes-Benz GLS Mercedes-Benz G-Class Mercedes-Benz GLE Coupe Mercedes-Benz GLE Mercedes-Benz GLA BMW X7 Audi Q8

12. Cheapest cars with AEB Below are some of the most affordable cars with AEB:

13. A DVANTAGES One of the most significant advantages of AEB is that it can avoid a potential collision. If you are driving on a highway, the system can drastically reduce the vehicle speed before colliding with an obstacle. It reduces the intensity of the impact, and it can save your life. It’s an efficient safety feature since it does not require human input. The fast reaction time of AEB can save you from tricky situations. Advanced AEB systems can work at slow and high speeds. Hence, it is useful both in cities and highways. AEB can enhance the braking force if you are not applying the brakes with enough force.

14. DISA DVANTAGES AEB is an expensive system. Hence, cars with automatic braking systems are expensive. Automatic braking can kick in falsely and jam the brakes. For example, if you are parking the car in a very tight spot, AEB can trigger the brakes, which can be a shockig to the driver. Some drivers can be over-reliant on AEB and may not pay attention to the road ahead.

15. CONCLUSION Safety has been one of the talking points of the Indian automobile industry in the past few years. With essential safety features such as dual front airbags, ABS and rear parking sensors mandatory in India, the cars are much safer. However, AEB is not compulsory in India. But the government is mulling making active safety features mandatory in the coming years.