A.B.S.

From Devon, 1 post

wat does A.B.S. stand for????

1 post

ABS stands for Anti-lock Braking System. Optimal braking is implemented by completely locking all the wheels. But in this case, ABS does not. In physics, the coefficient of friction between the ground surface and a static object is always greater than a moving object. If the tyres are sliding on the road surface, the friction between road and wheel will not be maximum. Therefore, the maximum braking occurs when the wheels are braked up to the level that the wheels just do not slide. To ensure the shortest stopping distance, ABS applies intermittent braking in very high frequency. This avoids complete lock up of wheels. Another advantage of ABS is letting the driver to keep controlling the car during braking. Before ABS appeared, cars lock up during braking, thus unable to be steered to avoid collision. With ABS, while slowing down the car, the driver can simultaneously try to steer away from the obstacle in front. To implement anti-lock braking, ABS system employs speed sensors for individual wheels. If the wheel speed detected differs from the vehicle speed, that means the wheel is sliding, thus the computer will signal the corresponding brake to loose until sliding disappear. The computer will also compare the speed of all wheels, if one or more of them run considerably faster than others, that means the car is losing control, it will apply more brake to that wheel to correct the driving path.

From New Zealand, 1 post

Just a note from billys explaination.When a.b.s is activated you will hear a loud squeal from under the bonnet and feel the break pedal pulse.This is normal and the pulsing is the abs unit turning each wheels brake on and off.Go to a gravel track and try it. A.B.S and air bags are complex but excellent safety systems.

1 post

Paul, I don't know what sort of car you've got but I've never known a car with ABS to emit & quot;a loud squeal from under the bonnet & quot; when the ABS is operating!?

From MANCHESTER, 6 posts

ANTI LOCK BRAKING (A.B.S) SYSTEM WAS INTRODUCED TO THE MOTOR VEHICLE TO IMPROVE THE ROAD HOLDING UNDER DIFFERENT BRAKING CONDITIONS (HEAVY BRAKING,ICEY AND WET CONDITIONS) THE AIM IS TO PREVENT ANY ONE OR ALL ROAD WHEELS FROM LOCKING UP UNDER THE ABOVE CONDITIONS.THERE ARE MANY DIFFERENT TYPES OF SYSTEMS BUT ALL HAVE THE SAME RESULT. AT LOT OF THE MANUFACTURES TODAY USE THE TOOTHED GEAR AND SENSOR TYPE WHICH SENSE WHEN A ROAD WHEEL OR WHEELS ARE NOT ROTATING DUE TO LOCK UP OF THE BRAKES AND THE SENSOR SIGNAL IS INTERUPTED AND THE ABS COMPUTER SENDS A SINGNAL TO REDUCE THE PRESSURE ON THAT WHEEL OR WHEELS.AT NO TIME WILL THE BRAKE PRESSURE BE INCREASED TO BALANCE OUT THE BRAKES.

From UK, 6 posts

Its a common misconception that ABS stands for Anti-lock Braking system.

In fact, ABS is an abbreviation of Anti-Blocking System.



Even Wikipeidia gets it wrong.........