Description of ABS in short for an Conference

2. Objectives:
 Introduction to Anti-lock brake system.
 Illustration of ABS.
 ABS Layout.
 ABS Components.
 Steps Involved In ABS Working.
 Advantages And Disadvantages of ABS.

3. Anti-lock Brake System:
Function
 ABS is used as an antiskid device in a
vehicle. It used to prevent skidding of
wheels while braking when we want to
stop the vehicle or suddenly reduce its
speed at any time.
 It provides better stability and control
over vehicle while braking at high speed.
 It avoids locking up of wheel during
braking.

4. Illustration of ABS:
With ABS:
Without ABS:

5. Illustration 2 of ABS:
 With ABS(Blue Path) and
Without ABS(Green and Red path)

6. ABS – How It Works
 Principle: ABS avoids locking up of
wheel by automatically changing the
brake fluid pressure repeatedly.
 This is done with the help of ABS
hydraulic unit and sensor at each wheel.
 When ABS is activated, you may
experience a slight vibration or pulsation
of the brake pedal. This means that
ABS is working.

7. ABS Layouts and Components.

8. ABS Components:
1. Wheel Speed
Sensor:
 The anti-lock
braking system
needs some way
of knowing when
a wheel is about
to lock up this
work is done by
speed sensors.

9. 2. Hydraulic Unit:
 It is a central unit
which controls the
flow of hydraulic
fluid to each
valves located
near to the wheels.
 This unit is to
regulate the
pressure for each
wheel
independently.

10. Steps involved in ABS:
 ABS controller detects the
wheel speed by the
signals from wheel speed
sensors.
 After receiving signal it
then sends the control
command to hydraulic
unit.
 After receiving the control
command, the hydraulic
unit operates solenoid
valves to alter the brake
fluid pressure to each
wheel.

11. Advantages Of ABS:
 It provides greater vehicle stability.
 Maintain directional stability in
steering during heavy/sudden
braking.
 Easy Fault/Failure detection by the
vehicle owner.
 ABS helps in shorting the stopping
distance.

12. Disadvantages of ABS:
 Very Costly
 Maintenance of a Car equipped with
ABS is required more.