Technology Guide: What’s an Automatic Braking System (ABS)?
Technology Guide: What’s an Automatic Braking System (ABS)?

Technology Guide: What's an Automatic Braking System (ABS)?

The Basics

A vital part of safety technology in automobiles is the automatic braking system. It is an advanced system that prevents collisions, or reduces speed, before a collision with pedestrians or obstacles.

These systems combine sensors like radar, video, ultrasonic, or infrared to scan the area for potential objects. Then, if an object is found, brake control is used to prevent collision.

Automated brakes are just one of the many safety features that cars have. They often integrate with other technologies, such pre-collision systems or adaptive cruise control.

Explaining the Operation

Each car manufacturer has its own technology, but all automatic braking systems use sensory input. Depending on which manufacturer the system is, it may use sensors like radar, laser, or video data to determine whether there are objects in front. For example, it monitors traffic in front and evaluates the likelihood of a collision.

The system measures sensor data directly if the object is detected. It measures the distance between the object in front and the moving vehicle, and then assesses their relative speed. If the system determines that there's a significant speed difference between the vehicles, it can activate the brakes. The system will activate the brakes automatically if it determines that the vehicle's speed is greater than the object following its path. This can be done to avoid any collision.

An automatic brake system can connect to a vehicle's GPS system and use its database to activate the brakes when the driver fails.

Different Systems

As we have already mentioned, each manufacturer uses its unique automatic braking technology with different sensory inputs.

Volvo's City Safety System combines a lidar (laser-radar) placed in the bumper and a camera that is mounted in the windshield. Although Lidar can see hundreds of yards in front, it cannot determine what it is seeing. Cameras can identify and report on objects, helping to determine whether they are a potential problem.

Honda's City BrakeActive System uses radar sensors and cameras to combine data and alert the driver with a series visual and audible alarms. If the driver ignores these warnings, the system will automatically apply the brakes. Honda's system can detect pedestrians, slow down or stop the vehicle completely if they are possible to be hit.

Role In Other Safety Features

According to IIHS, crash prevention features can reduce the likelihood of an accident or minimize the severity of the impact in approximately 1.9 million crashes each year. They are also capable of preventing one out three fatal crashes.

Automated braking systems are crucial in preventing these crashes. They are used in adaptive cruise control and precrash collision avoidance systems.

Collision avoidance devices warn the driver about a possible collision by using a combination audio and visual alerts, such as on an instrument panel, windshield or windshield, and tightening of your seat belt.

If the driver fails to react to the warnings and doesn't apply the brakes when the system detects that an imminent impact is occurring, the brakes will automatically be activated.

A combination of adaptive cruise control systems and automatic braking systems can be used to reduce speed. They measure the speed of the vehicle ahead and match it. These systems can also be used to reduce speed by downshifting, cutting the throttle and activating the brakes.

Benefits of an Automated Braking System

Autonomous braking systems allow drivers to drive their cars in a similar way as any other vehicle. It's there, but the driver doesn't notice it. If it comes down to that, it doesn’t even need the driver's input to respond.

Only about 40% of drivers are able to react in a crash and use the brakes. The driver has the ability to push the brakes, or to steer. "We want the driver to make the decision. However, if the driver does not respond at all, autonomous braking will be performed. (Klaus Kompass - BMW's vice president for vehicle safety.

A braking system that automatically applies brakes can reduce damage to property in the event of an accident. It can also help save lives.

It is a wonderful safety net, which most drivers will never use. However, it provides comfort to all drivers

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