anti-lock braking system(abs) by- khan arshad habib (mechanical engineering) an advanced braking...
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ANTI-LOCK BRAKING SYSTEM(ABS)
By- Khan Arshad Habib (Mechanical Engineering)
An Advanced Braking Technology
ME-5C (Final Year)
Anjuman-I-Islam’sAbdul Razzaq Kalsekar Polytechnic, New Panvel
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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
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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
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TYPES OF BRAKES
Hydraulic brakes
Electric Brakes
Mechanical Brakes
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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.
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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
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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
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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.
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MAIN COMPONENT OF ABS
Some Wheel Speed Sensors Brake Calipers A Hydraulic Motor Some Pressure release
valves A quick thinking computer
(Control Module)
An ABS system consists of the following components:
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CONSTRUCTION A-Wheel Speed Sensor
B-ABS control Module
C-pressure Release Valves
D-Brake caliper
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WORKING PRINCIPLE OF ABS It consists of an
electronic controller. The electronic unit
constantly monitors the speed of the wheel.
ABS.flv
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TYPES OF ABS
Four-channel, Four Sensor
Three-Channel, Three sensors
One-Channel, one Sensor
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EFFECTIVENESS In 2003 Australian study by
Monash University Accident Research Centre found that ABS:
Reduced the risk of multiple vehicle crashes by 18%.
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BRAKING DISTANCE 80 KM/HR
ROAD CONDITION WITHOUT ABS WITH ABS
DRY PAVEMENT 45m 32m
SNOW 53m 64m
ICE 255m 404m
A june 1999 NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA) study found that:
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APPLICATION IN INDIAN AUTOMOBILES Maruti Suzuki Swift Maruti Suzuki RITZ Skoda Superb Honda Accord Honda City Hyundai Verna Hyundai i20 Etc.
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Q & A SESSION
. Any query or doubt, most wellcome. Questions should be related to the
Topic.
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