Things You Must Know About Anti-lock Braking System

1
Things You Must Know About Anti-lock Braking
System
2
The anti-lock braking system aka ABS is a safety
feature in cars that prevents their wheels from
locking up and helps to maintain the steering
control.
3
ABS enables the wheels of a car to maintain
retroactive contact with the ground to avoid an
uncontrolled skid on sudden braking.
4
Major components
Speed sensor
Valves
Electronic control unit
Hydraulic control unit
5
Speed sensor
1
2
It consists of an exciter (a ring with V-shaped
teeth) and a wire coil or magnet assembly, which
generates the pulses of electricity as the teeth
of the exciter pass in front of it.
These sensors are attached to each wheel and
determines whether to accelerate and decelerate,
the speed of the wheels.
6
Valves
1
2
The resistance that you feel, while braking
suddenly at high speeds is actually the brake
valves controlling the pressure that is being
transferred to the brakes.
There is a valve in the brake line of each wheel
that regulates the air pressure to the brakes
during the ABS action.
7
Electronic control unit
1
2
It collects the signal from the sensors in the
circuit, analyzes them and controls the brake
pressure.
The ECU is an electronic unit that receives,
amplifies and filters the sensor signals for
calculating the wheel rotation speed and
acceleration.
8
Hydraulic control unit
1
2
The hydraulic control unit receives a signal from
the ECU to apply or release the brakes under the
anti-lock conditions.
It controls the brakes by increasing the
hydraulic pressure or bypassing the pedal force
to reduce the braking power.
9
How ABS works ?
10
ABS is a part of an overall stability system,
which monitors the wheels under heavy braking.
11
When the speed sensors detect that a wheel is
about to lock or stop moving, the system releases
the brake for a moment.
12
The hydraulic control unit controls the brake
pressure in each wheel cylinder based on the
inputs from the sensors which controls the speed
of the car.
13
ABS, then continuously applies and releases
pressure, which results in optimum braking
pressure to all wheels. So that they don't get
locked up.
14
Advantages
15
The ABS brakes are designed to combat the problem
of tire lock up and uncontrolled spins.
16
It provides stable braking characteristics on all
road surfaces, be it slippery or snowy.
17
ABS reduces friction between the tires and road,
thus increases the efficiency of the tires.
18
With the application of ABS, a car stops at a
shorter distance than the conventional brakes.
19
Summing up
ABS has transformed the mechanism of braking in
cars making it more automatic and efficient. And
also has made our drive highly safe and
comfortable.
20
https//www.europlusautomotive.com/
/115996786178021763218
/EUROPLUSAUTO/
Thank You!