HYDRAULIC BRAKING SYSTEM

Project By:PC Mubashar SharifGC Hafiz M Mudassir BhattiPC Sajid AliNS Asad Ali Janjua

Hydraulic SystemPower derived from motion and pressure

of a particular liquid such as water or oil. fluid should be incompressible.

Applications of Hydraulic system

Aerospace IndustryAutomotive IndustryMachine Tool IndustrySteel Mill IndustryOcean Freight Dock Transfer

Equipment

Braking System

COMPONENTS OF HYDRAULIC BRAKE

PUSH ROD MASTER CYLINDER BRAKE LINES WHEEL CYLINDER• Wheel disc• Caliper

Master cylinder

Push rod

caliper

Brake lines Wheel disc

MASTER CYLINDERCAST IRONPROCESS INVOLVED Sand Casting Machining Internal Threading Finishing Installation of metering valves Installation of gasket.

TOP VIEW

RIGHT SIDE VIEW

FRONT VIEW

WHEEL DISCSTAINLESS STEELDIE FORGINGMACHINING• Drilling • Boring • Threading • Fine Finishing

FRONT VIEW

CALIPERAluminium and Chrome coated steel.Consist of Pistons, Cylinders and Pad shoes.Pad shoes of rubbers or high wearing

resistance material.Process involvedCasting or ForgingMachiningFinishing

LEFT SIDE VIEW

TOP VIEW

FRONT VIEW

ANTI-LOCK BRAKESABS, (Anti-Lock brake system)ABS allows the driver to maintain steering

control of the vehicle while in hard braking situations .

Computerized ABS is designed to keep the wheels from locking as the brakes are applied.

A locked wheel provides very little or no directional control

Anti-Lock Braking Systems 23

Vehicle ABS SystemSpeed Sensors on

Wheels are Monitored by On Board Computer

Radical Speed Differences Trigger ABS Action

ABS “Pumps” the Brakes 18 Times per Second

Road Surface

Weather Conditions

Tire Tread and Inflation

Braking Techniques

Speed

Steering Inputs

T – 9.9

Critical Tire Traction Depends On:

Anti-Lock Braking Systems 25

Vehicle ABS SystemABS Systems

“Counter-Intuitive” OperationsGrinding Sounds

from All WheelsPulsating or Soft

Brake PedalDriver Can Still

Steer (with Reduced Effect)

ANTI-LOCK BRAKESThe best braking action occurs at between

10-20%. If vehicle speed and wheel speed is the same

wheel slippage is 0%A lock-up wheel will have a wheel slippage of

100%

Vehicle Systems — ABS Brake System

Enhanced Braking Action

Reduced Stopping Distance

Increased Vehicle Stability

Enhanced Vehicle Steerability

ABS Advantages

Braking and Steering

Braking ONLY

In many emergency situations braking alone may not prevent a collision.

28

Any Questions?