Anti lock braking system .....used in now a days to provide more comfort on application of brake .

1. SUBMITTED BY
AKASH SINGH
(ME 3rd YEAR)

2. ABSTRACT
 In today’s world, braking is the
most important system in
an Automobile.
 Brakes are energy conversion
devices, which convert kinetic
energy of the vehicle into
thermal energy.
 In Antilock Braking System, we can prevent the locking of the
wheel and hence skidding, using an Electro Mechanical
Control System.

3. INTRODUCTION
 In recent years, with advancement
in design & technology, Disc brakes
are fast replacing drum brakes.
 ABS was first developed for
Aircrafts braking system but
soon started replacing the conventional braking
system in trucks and cars.
 Recent improvements in ABS allows to prevent wheel when
accelerated on wet or slippery surface.

4. OPERATION PRINCIPLE
 “Limiting the pressure to any
wheel which decelerates too
rapidly” is the basic principle
employed in ABS.
 A speed sensor is used for
measuring the speed of the
wheel and sends it constantly
to the computer.
 Depending on the initial brake pressure and the speed of the
wheel, the computer modulates the brake pressure as fast as
fifteen times per second.

5. STRUCTURE & OPERATION OF THE
ABS

6. Components of ABS Kit
 Brake Calipers
 Speed Sensor in wheels
 A Hydraulic Motor
 Pressure Release Valves
 Computer controlled module

7. TERMINOLOGY
 ABS Actuator‐Work horse of the ABS.
 ABS Channel‐Hydraulic line connecting ABS actuator and the
wheel.
 ABS Sensor‐It consists a gear
shaped sensor rotor and sensor
element.
 ABS Valves‐Valves are used in
brake line for controlling the
each brake depending on its
position.

8. TERMINOLOGY
A- speed sensor
B- control module
C- hydraulic unit with
releasing valves
D- brake pipe
 ABS Pumps‐It is used for pumping the backup pressure from
the reservoir to the brake cylinder.
 ABS Pulse or Modulation‐The braking pressure is fluctuating
fifteen times per second for preventing the locking of the
wheel.

9. With ABS V/s Without ABS
in Bikes

10. DIFFERENT TYPES OF ABS
SYSTEMS
 1 or 2 channel 2‐Wheel (Rear ABS)
 2 Channel 4‐Wheel Crisscross
 3 Channel 4‐Wheel
 4 Channel 4‐Wheel
4 Channel 4‐Wheel is considered better than the other three
system.

11. ADVANTAGES
 It can be used for reducing the stopping distance.
 It enables to steer while the brakes are firmly applied.
 It allows braking
firmly on surfaces
with different level
of grips.
 It can review and
adjust the driver’s
driving.
 Safe & Effective

12. DISADVANTAGES
 Drivers may take more risks when driving with vehicles fitted
with ABS.
 In exceptional circumstances, some drivers have the skill to
stop the vehicle in a shorter distance than achieved by an ABS
equipped vehicle.
 People who are inexperienced in using ABS may respond
inappropriately when they activate the system.
 Maintenance of a Car equipped with ABS is required more.
 Very Costly

13. CONCLUSION
Because of its role in preventing the wheels from locking and
better steering control during braking, Anti‐lock Braking System
should be made mandatory for all vehicles.

14. THANK YOU !