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Automotive glossary: What is an Anti-lock Braking System? (Abbr.: ABS)

Definition of Anti-lock Braking System: If, on an emergency stop the wheels lock up, the braking distance partially extends considerably, especially on wet streets. Besides that, the vehicle does not react anymore on the steering. The anti-lock braking system now targeted limits and reduces the brake force of the wheels, in order to prevent the wheels from locking up, so that they always keep on turning to some extend. Thus the possibility of evasive maneuvering is being preserved, and the braking distance may shorten appreciably, depending on the road condition. It usually consists of several valves and high pressure pumps for the limitation resp. abatement of the hydraulic pressure impacting the brake cylinders.

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