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Autonomous Emergency Braking

  • Author :
  • TATA AIG Team
  • Published on :
  • 11/04/2024

Technological advancements in automotive safety have brought about safer driving experiences in the past decade. For example, active and passive safety features, such as autonomous emergency braking technology, have made driving much safer.

Autonomous emergency braking (AEB) is a type of emergency brake system that assists the driver when on the road. It has been shown to drastically decrease the rate of car accidents successfully. Read on to find out more about car AEB!

What is Autonomous Emergency Braking (AEB)?

An Autonomous emergency braking (AEB) system serves as an advanced safety mechanism designed to intervene when a driver fails to react promptly to imminent collision threats. The higher-speed automatic emergency braking system takes action to mitigate or prevent any possible collisions by continuously monitoring the road ahead of pedestrians and obstacles.

This proactive approach ensures enhanced safety by swiftly applying the brakes or amplifying the braking force to halt the vehicle and avoid accidents even without driver intervention.

An Autonomous emergency braking technology system operates independently while detecting sudden dangers that the driver might not be able to foresee and offers instantaneous responses.

It is available in various configurations and can be tailored to specific vehicle models when required.

Autonomous emergency braking (AEB) devices provide drivers with added assurance and protection against unexpected road conditions, which helps facilitate safer road journeys for all road users.

Types of Autonomous Emergency Braking in Cars?

Various types of Autonomous Emergency Braking (AEB) systems are integrated into vehicles to enhance safety against unexpected driving scenarios. Each type serves functions tailored to address distinct collision risks and contributes to overall road safety.

Types of Car AEB Features Function
Forward AEB It is integrated with Forward Collision Warning (FCW) systems to alert drivers of potential risks on the road.  This AEB provides visual or audible alerts to drivers upon detecting hazards.
Forward AEB If the driver fails to respond, this AEB automatically applies brakes to prevent any collisions.  It automatically intervenes by applying brakes to prevent collisions.
Rear AEB It assists drivers in detecting obstacles while reversing and enhances safety during rear manoeuvring.  It helps drivers detect obstacles when reversing the car. 
Rear AEB It is combined with rear cross-traffic alert systems, which aid in navigating through tight parking spaces and detecting vehicles behind the car.   It enhances space awareness in tight parking spaces or turns. 
Highway Speed AEB It safeguards the car occupants during high-speed driving by detecting potential dangers from a distance.  It detects potential risks at high speeds.
Rear AEB While it may not bring the vehicle to a complete stop, it intervenes by slowing down the vehicle to reduce the chances or severity of any possible collisions.  It decelerates the car to mitigate the severity of collisions. 
Rear AEB Gives drivers time to react or manoeuvre the car to safety. 
City Speed AEB This AEB targets low-speed collisions that are common in urban and congested areas.  It prevents collisions in congested areas.
Rear AEB It operates efficiently in heavy traffic jams or parking lots to detect and prevent any possible collisions with other vehicles.  It detects and reacts to potential hazards and minimises the risks of any possible collisions. 
Rear AEB Reduces the risks of the occurrences of any minor accidents. 
AEB with Pedestrian Detection It detects pedestrians, cyclists and large animals in the vehicle’s path.  It detects other road users and automatically applies brakes for road safety. 
Rear AEB It reacts swiftly upon detection and automatically stops the vehicle to prevent collisions and protect vulnerable road users. 

How does Autonomous Emergency Braking Technology Work?

Autonomous Emergency Braking (AEB) systems operate by continuously monitoring the distance between the vehicle and obstacles ahead through cameras and sensors.

Upon detecting a rapid decrease in distance it issues warnings either audibly or visually. This prompts the driver to react to the road risk. If the driver fails to respond to flagged risk promptly. The Autonomous Emergency Braking (AEB) system assumes control of the vehicle and stops.

An Electronic Control Unit (ECU) monitors the driver’s brake application. This allows the Autonomous Emergency Braking (AEB) system to adjust the braking force accordingly.

Moreover, the system utilises an Anti-lock Braking System (ABS) to facilitate controlled declaration or a stop. While basic Autonomous Emergency Braking (AEB) systems can effectively slow down or halt vehicles at lower speeds, advanced versions of the technology are required to operate at higher speeds to detect road risks.


Parameters Autonomous Emergency Braking (AEB) Anti-lock Braking Systems (ABS)
Purpose To avoid collision with obstacles on the road or mitigate the severity of the collision. To prevent wheel lock-up during emergency braking.
Mechanism It monitors vehicle surroundings via sensors/cameras and detects obstacles while triggering warnings to the driver. It applies brakes automatically if the response of the driver is delayed.  It detects wheel lock-up via speed sensors on wheels and releases brakes intermittently to prevent lock-up. It then reapplies brakes to slow down or stop the vehicle. This cycle repeats until the car stops safely.
Category It is an Active safety feature It is an Active safety feature
Driver Input No driver input is required. The system automatically applies brakes. The system activates only if the driver applies brakes.
Application It is not mandatory in India. It is found in a few luxury/ premium cars. It is mandatory for all cars in India.
Cost Expensive Economical

Pros and Cons of Car AEB

Pros of Autonomous Emergency Braking  Cons of Autonomous Emergency Braking
It prevents collisions with other vehicles by automatically applying brakes when a possible collision is detected. The installation of Autonomous Emergency Braking Technology Systems increases the overall cost of the vehicle. This makes it more expensive for consumers.
It takes immediate action in emergencies and potentially saves lives even when drivers are startled or confused. 
It reduces vehicle speed on highways to reduce the intensity of any possible collisions. This enhances the overall safety on high-speed roads.  Drivers may become overly reliant on Autonomous Emergency Braking Technology Systems which can lead to decreased attentiveness on the road and cause more risky situations.    
It requires no human input and operates autonomously based on sensor and camera data, as the name suggests. This helps it respond swiftly to potential road risks. 
It is effective at both low and high speeds. It provides safety benefits in a wide range of driving scenarios and conditions, including the city streets and highways.  Autonomous Emergency Braking Technology Systems can occasionally falsely trigger risks, which can lead to unexpected brake engagement. This can prove dangerous in high-traffic areas or even tight parking spots.
It can enhance the braking force beyond the driver's input if it is necessary depending on the situation. This helps mitigate the severity of any possible collisions and prevents them, too. 

Importance of Autonomous Emergency Braking Technology

  • Autonomous Emergency Braking (AEB) systems stand out as irreplaceable components of vehicles for several reasons:

  • Autonomous Emergency Braking (AEB) systems offer the capability to prevent collisions entirely or help significantly mitigate their severity, especially in high-speed scenarios.

  • They autonomously detect obstacles and risks and make swift decisions to decelerate or halt the vehicle. This is crucial in situations with limited visibility.

  • With their swift reaction times that surpass human reflexes, these systems play a vital role in saving lives and safeguarding both car occupants and pedestrians alike.

  • These systems are especially valuable for night-time driving when the visibility has a higher chance of being compromised. In such situations, Autonomous Emergency Braking (AEB) systems enhance safety by swiftly responding to potential road risks.

  • While Autonomous Emergency Braking (AEB) systems share similarities with the Anti-lock Braking Systems (ABS), there is a crucial distinction between the two technologies that highlight the unique contributions of each technology.


Autonomous Emergency Braking Technology is an irreplaceable advancement in automatic safety that offers one-of-a-kind proactive collision prevention and mitigation. However, despite its benefits, it is only widely available for some cars, with its application limited only to luxury cars in India. Hence, it is crucial to invest in own damage car insurance.

Investing in insurance for four four-wheelers from us at Tata AIG ensures comprehensive protection for your precious vehicle. Our car insurance policy can be tailored to your insurance needs at budget prices.

Moreover, with our user-friendly website, you can easily buy or even compare car insurance online. This will help you find a car insurance policy that aligns with your financial objectives.

Frequently Asked Questions

1. Does installing an Autonomous Emergency Braking Technology System affect the car’s insurance premiums?

Since Autonomous Emergency Braking Technology Systems are an added feature, they may cost higher premiums. For detailed information, contact our customer executives at our 24/7 Toll-Free Number, 1800-266-7780.

2. Can an Autonomous Emergency Braking Technology System be disabled after installation?

Yes, an Autonomous Emergency Braking Technology System can be disabled after installation. However, this depends on the car model.

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