hydraulic brakes and anti lock braking system(abs)
TRANSCRIPT
Welcome !!!
;) :) ;D
Friends !!!
What will u learn ???
(1)Pascal's law of transmission of pressure ;)
(2) How a basic hydraulic system works ;) ;D
(3) How a Hydraulic brake works in a car/bike
(4) How ABS works and why it is considered
as most advanced braking system ;) ; D
(5) And a lots of cleared concepts
Principle of transmission of
fluid pressure: Pascal's law or the
principle of transmission
of fluid-pressure is a
principle in fluid
mechanics that states,
that any force applied to a
confined, incompressible
fluid is transmitted in all
directions throughout the
fluid regardless of the
shape of the container.
HYDRAULIC AND
HYDRAULICSThe word "hydraulic" is derived from two Greek words: "hydro" meaning liquid or water and "aulos" meaning pipe or tubing. "Hydraulic," therefore, is an adjective implying that the word it modifies is in some major way concerned with liquids. Examples can be found in the everyday usage of "hydraulic" in connection with familiar items such as automobile jacks and brakes. As a further example, the phrase "hydraulic freight elevator" refers to an elevator ascending and descending on a column of liquid instead of using cables and a drum.
On the other hand, the word
"hydraulics" is the generic name of a
subject. According to the dictionary
"hydraulics" is defined as a branch of
science that deals with practical
applications (such as the
transmission of energy or the effects
of flow) of a liquid in motion.
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Hydraulic
Brakes !!! ;) ;D
Text
𝑭 = 𝝁 𝑹𝑵Where
F = Frictional Force
And
µ = Coefficient
of Friction
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𝑅𝑁 = 𝑊
ABSWhat is ABS ???
;) ;D
Anti-lock braking system (ABS) is an
automobile safety system that allows
the wheels of a motor vehicle to maintain
tractive contact with the road surface
according to driver inputs while braking,
preventing the wheels from locking up
(ceasing rotation) and
avoiding uncontrolled skidding.
Components of ABS
1.Speed sensors
2.Valves
3.Pump
4.Controller
Speed sensors
A speed sensor is used to determine the acceleration or deceleration of the wheel.These sensors use a magnet and a coil of wire to generate a signal. The rotation of the wheel or differential induces a magnetic field around the sensor. The fluctuations of this magnetic field generate a voltage into the sensor.
Since the voltage inducted on the sensor is a result of the rotating wheel, this sensor can become inaccurate at slow speeds. The slower rotation of the wheel can cause inaccurate fluctuations in the magnetic field and thus cause inaccurate readings to the controller.
Valves
There is a valve in the brake line of each brake controlled by the ABS. On some systems, the valve has three positions:
In position one, the valve is open; pressure from the master cylinder is passed right through to the brake.
In position two, the valve blocks the line, isolating that brake from the master cylinder. This prevents the pressure from rising further should the driver push the brake pedal harder.
In position three, the valve releases some of the pressure from the brake.
The Pump
The pump in the ABS is used
to restore the pressure to the
hydraulic brakes after the
valves have released it.
A signal from the controller will
release the valve at the
detection of wheel slip.
After a valve release the pressure
supplied from the user, the pump is
used to restore a desired amount of
pressure to the braking system.
The controller will modulate the
pumps status in order to provide the
desired amount of pressure and
reduce slipping.
The Controller
The controller is an ECU type unit in
the car which receives information
from each individual wheel speed
sensor, in turn if a wheel loses traction
the signal is sent to the controller, the
controller will then limit the brake force
(EBD) and activate the ABS modulator
which actuates the braking valves on
and off.
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BMW ABS System
Importance of ABS
Hydraulic Brakes in
practice !!!
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Caution : Always wear a
helmet while driving !!!
even if your bike is having
Most Advanced Braking
System !!!
A salute to the
legend and my
source of inspiration
: Albert Einstein
The Great
Thank you
For watching this video
!!! ;);D
By
Krupal Vithlani
If u still have any doubts then u
can visit
http://auto.howstuffworks.com/
auto-parts/brakes/brake-
types/anti-lock-brake.html
OR
U can contact me any time !!!
I’ll give my 100 %
&
Try my level best to solve any
problem !!!
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I'm extremely sorry in
case of any complaint
regarding this video
and suggestions
would be warmly
welcomed
– Krupal Vithlani
“Created by blessings of the God and
teachers .”
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hard work
Good bye !!!
Have a nice day !!! ;) ;D ;)
