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BRAKING SYSTEM
By R.Vara Prasad
Asst. professor
CONTEXT:
 Principle
 Braking Requirements
 Purpose & Location Of Brakes
 Construction
 Method Of Actuation
 Anti-Braking System
 RequirementOf Brake fluid
 Brake Maintenance
 Trouble Shooting
PRINCIPLE:
 Brakes are required to stop the vehicle within the smallest possible distance
by converting the kinetic energy into the heat energy which is dissipated
into atmosphere.
BRAKING REQUIREMENTS:
 Strong
 Consistent
 Control
 Anti fade
 Effectiveness & Cooling
Purpose & Location Of Brakes:
 Service Brakes
 Parking Brakes.
 Transmission
 Wheels
CONSTRUCTION:
DRUM BKAKES:
 Attached concentric to axle hub
 Casing is mounted on back plate
 Protects the drum and shoe
assembly
from mud and dust
 It absorb complete torque so
called as
torque plate
 Anchored at one end and force is
applied on other end by actuating
mechanism which forces the brake
shoe against revolving drum thereby
applying the brakes.
DISC BRAKES:
 Consists of cast iron disc bolted
to wheel hub & stationary
housing called caliper
 Connected to stationary part
and cast into two parts each
containing piston
 Friction pads are held b/w
piston and disc
 Hydraulically actuated pistons
moves the friction pads into
contact with the disc
 Rubber sealing rings act as
return springs
METHOD OF ACTUATION:
 Mechanical brakes
 Hydraulic brakes
 Electric brakes
 Vacuum brakes
 Air brakes
VACUUM BRAKES:
PNEUMATIC BRAKES:
Anti-Braking System:
Requirement Of Brake fluid:
• Boiling point
• Viscosity
• Lubrication properties
• Effect on rubber
• Corrosive action
• Storage stability
Brake Maintenance:
 Periodic checking
 Topping the level of brake fluid
 Adjustment of brakes to compensate wear of brake lining
 Lubrication
 Changing of rubber cups and seals
Trouble Shooting:
• Loss of braking efficiency
• Brake fade
• Brakes binding
• Brakes overheating
• Brake judder
• Vehicle pulling to one side when brakes applied
• Grabbing brakes
• Hand brakes ineffective
• Excessive loss of brake fluid
• Presence of air in the braking system
Presented by
1)M. GIRISH
2)V.RAVITEJA
Automotive braking system
Automotive braking system

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Automotive braking system

  • 1. BRAKING SYSTEM By R.Vara Prasad Asst. professor
  • 2. CONTEXT:  Principle  Braking Requirements  Purpose & Location Of Brakes  Construction  Method Of Actuation  Anti-Braking System  RequirementOf Brake fluid  Brake Maintenance  Trouble Shooting
  • 3. PRINCIPLE:  Brakes are required to stop the vehicle within the smallest possible distance by converting the kinetic energy into the heat energy which is dissipated into atmosphere.
  • 4. BRAKING REQUIREMENTS:  Strong  Consistent  Control  Anti fade  Effectiveness & Cooling
  • 5. Purpose & Location Of Brakes:  Service Brakes  Parking Brakes.  Transmission  Wheels
  • 6. CONSTRUCTION: DRUM BKAKES:  Attached concentric to axle hub  Casing is mounted on back plate  Protects the drum and shoe assembly from mud and dust  It absorb complete torque so called as torque plate  Anchored at one end and force is applied on other end by actuating mechanism which forces the brake shoe against revolving drum thereby applying the brakes.
  • 7. DISC BRAKES:  Consists of cast iron disc bolted to wheel hub & stationary housing called caliper  Connected to stationary part and cast into two parts each containing piston  Friction pads are held b/w piston and disc  Hydraulically actuated pistons moves the friction pads into contact with the disc  Rubber sealing rings act as return springs
  • 8. METHOD OF ACTUATION:  Mechanical brakes  Hydraulic brakes  Electric brakes  Vacuum brakes  Air brakes
  • 12. Requirement Of Brake fluid: • Boiling point • Viscosity • Lubrication properties • Effect on rubber • Corrosive action • Storage stability
  • 13. Brake Maintenance:  Periodic checking  Topping the level of brake fluid  Adjustment of brakes to compensate wear of brake lining  Lubrication  Changing of rubber cups and seals
  • 14. Trouble Shooting: • Loss of braking efficiency • Brake fade • Brakes binding • Brakes overheating • Brake judder • Vehicle pulling to one side when brakes applied • Grabbing brakes • Hand brakes ineffective • Excessive loss of brake fluid • Presence of air in the braking system