Brakes ABS

Types

Hydraulic

Drum Brakes

Dual System

Antilock Brake System (ABS)

Brake System Principles

Kinetic Energy

Mass

Weight

Speed

Inertia and Momentum

Parking Brake

Not an “Emergency” Brake

Used specifically to keep a parked vehicle from moving

Usually on rear wheels only

Mechanically operated

Static Friction: at rest friction- More friction

Kinetic Friction: in motion friction- less friction

Typical Parking Brake

Service Brakes

Primary Braking System

Should be stronger than the engine

hydraulic Operated

Can be Vacuum, Hydro or Motor assisted

Disc System

Drum System

Dual System

Typical System

Hydraulic Principles

Fluids cannot be compressed

Fluids can transmit Movement

Acts “Like a steel rod” in a closed container

Master cylinder transmits fluid to wheel cylinder or caliper piston bore.

Fluids can transmit and increase force

Hydraulics

Simplified Hydraulic Brake System

Drum Brake

Master Cylinder

Disk Brake

WORKING OF HYDRAULIC BRAKE

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