The presentation describes the Anti Lock braking system which is a new braking technology used today in automobiles to avoid skidding of the vehicle while braking.

1. ANTI-LOCK BRAKING SYSTEM(ABS)
An Advanced Braking Technology
By- Khan Arshad Habib (Mechanical Engineering)
ME-5C (Final Year)
Anjuman-I-Islam’s
Abdul Razzaq Kalsekar Polytechnic, New Panvel

2. OVERVIEW
 Introduction to brakes
 Types of Brakes
 Materials used in Brakes
 Introduction to ABS
 History of ABS
 Aim of ABS
 Main components of ABS
 Construction
 Working principle
 Effectiveness
 Braking distance
 Application in Indian Automobiles

3. INTRODUCTION TO BRAKES
 It is one of the most important device.
 Used to retard or stop the vehicle.
 Kinetic energy translated to heat energy.
 Kinetic energy increases with the square
of the velocity.
 By K.E=1/2mv²

4. TYPES OF BRAKES
Hydraulic brakes
Electric Brakes
Mechanical Brakes

5. MATERIALS USED FOR BRAKES
 Cast Iron on Cast Iron.
 Bronze on Cast Iron.
 Steel on Cast Iron.
 Wood on Cast Iron.
 Leather on metal.
 Asbestos on metal.
 Etc.

6. INTRODUCTION TO ABS
 It is the safety innovation
introduced to the automotive
industry.
 It is a system that prevents
wheel from locking while
braking.
 It is available as standard on
almost all the new cars

7. History of ABS
 ABS was first developed for
AirCraft in 1929.
 By French Automobile & Aircraft
Pioneer GABRAEL VOISIN.
 The German Companies BOSCH
& Mercedes-Benz pioneered the
first electronic version for use
on Mercedes-Benz Cars in 1936.
 In 1953 BMW became the
World’s first motorcycle
manufacturer to introduce ABS.
ABS brakes on a BMW motorcycle

8. AIM OF ABS
 It is also known as Anti-Skid
Braking System.
 The aim is to maximize braking
while preventing the wheels
from locking & skidding.

9. MAIN COMPONENT OF ABS
An ABS system consists of the
following components:
 Some Wheel Speed Sensors
 Brake Calipers
 A Hydraulic Motor
 Some Pressure release
valves
 A quick thinking computer
(Control Module)

10. CONSTRUCTION
 A-Wheel Speed Sensor
 B-ABS control Module
 C-pressure Release Valves
 D-Brake caliper

11. WORKING PRINCIPLE OF ABS
 It consists of an
electronic controller.
 The electronic unit
constantly monitors
the speed of the
wheel.

12. TYPES OF ABS
 Four-channel, Four Sensor
 Three-Channel, Three sensors
 One-Channel, one Sensor

13. EFFECTIVENESS
 In 2003 Australian study by
Monash University Accident
Research Centre found that
ABS:
 Reduced the risk of multiple
vehicle crashes by 18%.

14. BRAKING DISTANCE 80 KM/HR
A june 1999 NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA)
study found that:
ROAD CONDITION WITHOUT ABS WITH ABS
DRY PAVEMENT 45m 32m
SNOW 53m 64m
ICE 255m 404m

15. APPLICATION IN INDIAN AUTOMOBILES
 Maruti Suzuki Swift
 Maruti Suzuki RITZ
 Skoda Superb
 Honda Accord
 Honda City
 Hyundai Verna
 Hyundai i20
 Etc.

16. Q & A SESSION
.  Any query or doubt, most wellcome.
 Questions should be related to the
Topic.