Functions and Components of Anti-lock Braking System (ABS)

Anti Braking System

Functions and Components of Anti-lock Braking System (ABS)

Introduction

Anti-lock Braking System is a safe anti-skid braking method used on aircraft, and land vehicles like cars, buses, and motorcycles. By maintaining an attractive relationship with the road surface, ABS prevents the wheels from locking up while braking. The system is based on the threshold and cadence braking principles that were once used by experienced riders. On smooth, dry, and some uneven roads, ABS typically provides advanced vehicle control and reduces stopping distances. It also works well on loose gravel or snow-covered ground.

With ABS, the braking distance is significantly increased, which improves steering control. Since it was first used in automobiles intended for mass production, ABS has advanced and grown more powerful. It is also known by other names, such as electronic brake force distribution, traction control system, emergency brake aid, or electronic stability control, depending on its distinct features and combinations (ESC).

How does Anti-lock Braking System work?

The Anti-lock Braking System is part of a vehicle’s Electronic Stability Control (ESC). The engine control unit (ECU), which is essentially the car’s brain, is connected to the ESC, which additionally aids in preventing issues like oversteer or understeer. The ABS continuously monitors the sensors on each of the vehicle’s wheels, and periodically releases the brakes to prevent the wheels from locking up, if it senses a sudden, severe pressure on the brakes. This set of computer-controlled operations stops the car from skidding, assuring the driver retains control of the vehicle.

Functions of an Anti-lock Braking System

The primary functions of an ABS System include-

  • ABS prevents the brakes from locking, possibly allowing the driver to steer the car to safety.
  • It reduces the chances of skidding.
  • Cars that have an Anti-lock braking system are less likely to be involved in a crash.

Components of an Anti-lock Braking System

There are five major components of an ABS System. They are as follows-

1. ABS Speed Sensor

The ABS sensor usually consists of a magnet contained in a coil and a toothed ring. The ring and the magnet coming in contact induce an electric field due to which a sign is produced. The ABS controller receives this signal once it has been converted into a digital signal. The controller then selects the individual wheel speeds. Under any circumstances, the ABS sensor is essential for regulating how the car drifts.

2. Valves

Valves play a major role because they regulate pressure and keep it to a set level in the ABS system. A malfunctioning valve will make it impossible for the system to modify or regulate the pressure applied to the brakes. There are three settings for the valve: open, block, and release.

3. Pump

Following a release of pressure by the valves, the pump in the ABS is employed to reapply pressure to the hydraulic brakes. To create the desired level of pressure and lessen sliding, the controller will alter the pump’s status.

4. Brake Fluid

Brake fluid is the primary brake applicator in a hydraulic brake fluid system. It’s used to transmit power from the hydraulic lines to the brake system located close to the wheels. Additionally, it shields the materials in touch against corrosion.

5. Controller

A Controller is an ABS component that receives data from each wheel’s ABS speed sensor. A signal is provided to the controller when a certain wheel loses traction. Next, the controller will set a brake force restriction and turn on the ABS modulator.

Conclusion

The Anti-lock Braking System is one of the best technological advancements to take place in the sector of car safety, in recent decades. In some cases, it genuinely can be the difference between life and death. In 2018, The Ministry of Road Transport and Highways made it necessary for manufacturers to include ABS as a standard feature in every new vehicle, and from 2019, it was ordered that even the existing models be equipped with the ABS System for them to be allowed to sell.

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