Anti Lock Braking Paper Presentation Seminar & Report
Preface of the attached file
Car manufacturers world wide are vying with each other to invent more reliable gadgets there by coming closer to the dream of the ‘Advanced safety vehicle’ or ‘Ultimate safety vehicle’, on which research and development has been going on for the past several year. Most of the newer vehicle models offer ABS as either standard or optional equipment .Wheel lockup during braking causes skidding which in turn cause a loss of traction and vehicle control. This reduces the steering ability to change direction. So the car slides out of control. But the road wheel that is still rotating can be steered. That is what ABS is all about. With such a system, the driver can brake hard, take the evasive action and still be in control of the vehicle in any road condition at any speed and under any load. ABS does not reduce stopping distance, but compensates the changing traction or tyre loading by preventing wheel lockup.
During panic braking when the wheels are about to lockup, sensors sense that the wheel has just begun turning slower than others on the vehicle. So they momentarily reduce braking force on the affected wheel. This prevents sliding of the wheels on the pavement. When the wheel resumes rolling, full braking force is again applied. ABS repeats the process until there is no longer any need for modulated braking. ABS acts faster than any driver could, pumping the brakes several times per second. Depending on the type of system, ABS adjusts the braking force at each wheel or set of wheels, whereas a driver’s foot on the brake pedal operates all the brakes at once in normal braking.
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