Friday, July 16, 2010

Autonomous Emergency Braking


Thatcham News April 2010 discusses Autonomous Emergency Braking (AEB)

What is Autonomous Emergency Braking (AEB)? 
AEB systems automatically apply the brakes to reduce speed when sensors on the vehicle identify a likely collision and the driver has not applied sufficient braking and is not attempting to steer away. The introduction of automatic braking was seen with the advent of Adaptive Cruise Control (ACC). ACC uses a radar unit mounted in the front grille to monitor the road ahead for other vehicles and obstacles and manipulates the car engine and brake controls to maintain and adjust speed to keep a safe distance from the vehicle ahead. Developments in environmental sensing technologies have improved system functionality and object detection reliability to the extent that systems can be relied upon to warn the driver in potentially dangerous situations, and intervene to apply pre-impact emergency braking to reduce collision speeds. State of the art systems are using ‘sensor fusion’, a combination of multiple sensor types (e.g. radar and camera or stereo vision cameras) to reliably identify not only other vehicles, but also pedestrians, and brake to a halt before impact to prevent low and medium speed crashes occurring altogether.

More about Thatcham AEB tests and the Car Thatcham Couldn't Crash!

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