Auto Handbrake Release System

1. Confidential Customized for Lorem Ipsum LLC Version 1.0
M.kumarasamy College of engineering
Department of mechanical engineering
T
eam member:
1)A.Thoufik ashamed
2)M.vembarasan
3)M.Yogesh
Project guide
Dr,M.loganathan

2. Confidential Customized for Lorem Ipsum LLC Version 1.0
Content:
1)Indroduction
2)Automatic hand brake release system diagram
3)Block diagram
4)working principle
5)Advantages
6)Disadvantages

3. V
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srizontalHandWheels.
4 1/2" &8" SheaveWheels.
ChainJoiners&Clevis / Rivet.
AAR BellCranks.
ShockRetarders&ChainExtensions.
Pins,Clevis &RodEyes.

4. Indroduction
In cars, the parking brake, additionally known as emergency brake, hand brake, or e-brake, is a latching brake
sometimes used to keep the vehicle stationary. It’s generally additionally accustomed prevent a vehicle from rolling
once the operator desires each feet to work the clutch and throttle pedals. Automobile hand brakes sometimes
contains a cable directly connected to the brake mechanism on one finish and to a lever or pedal at the driver's
position. The mechanism is usually a non-automatic lever (hence the emergency brake name), on the ground on
either aspect of the motive force, or a pull handle situated below and close to the wheel column, or a (foot-operated)
pedal situated way with the exception of the opposite pedals. Although generally called a hand brake, using it in any
emergency wherever the footbrake continues to be operational is probably going to badly upset the brake balance o
the automotive and immensely increase the probability of loss of management of the vehicle, for instance by
initiating a rear-wheel skid. To boot, the stopping force provided by using the handbrake is tiny and wouldn't
considerably aid in stopping the vehicle. The hand brake operates totally on the rear wheels that have reduced
traction whereas braking however in some cases, hand brake operates on front wheel, as wiped out most Citroens
manufactured since the tip of World War II.The emergency brake is instead supposed to be used just in case of
mechanical failure wherever the regular footbrake is inoperable or compromised. Trendy brake systems square
measure usually terribly reliable and equipped with dual-circuit hydrauli

5. Automatic hand brake release system diagram

6. Block diagram

7. Working principle
The compressed air from the compressor is used as a medium for this operation. Pneumatic double acting
cylinder is used. The air from the compressor enters to the flow control valve. The other way of air enters to
the solenoid valve. The function of Solenoid valve is to allow air at correct time interval. The air passes to
outlet through the exhaust valve cylinder due to pressure difference in the compressor by means of
pneumatic head into the piston by longitudinal unit used. The aim is to design and develop a control system
based on intelligent electronically controlled automotive braking system is called automatic braking system.
This braking system consists of limits switch, control unit and pneumatic braking system. The limits switch is
place below the diver seat when ever driver gets up from the seat the limits switch will release and the signal
is given to microcontroller and it will activate

8. A1)dQvuainctkaogepser
ation
2)Accuracy is more
3)It's reduce tha manual effort

9. Disadvantages
Cylinder stroke length is constant
Need a separate compressor
Maintenance of the equipment components such as hoses, valves has
to done periodically.

10. Application
It is applicable in four and heavy vehicle