COLLEGE OF ENGINEERING BHUBANESWAR SUBMITTED BY VED PRAKASH What is sensotronic brake control Sensotronic Brake Control is an innovative electronically controlled brake system that is faster and more precise than ID: 673330
Download Presentation The PPT/PDF document "A SEMINAR ON SENSOTRONIC BRAKE CONTROL" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
A SEMINAR ON SENSOTRONIC BRAKE CONTROL
COLLEGE OF ENGINEERING BHUBANESWAR
SUBMITTED
BY:
VED
PRAKASHSlide2
What is sensotronic brake control?
Sensotronic Brake Control is an innovative electronically controlled brake system that is faster and more precise than the conventional braking system.
Complete interaction of mechanics and electronics, known as
“MECHATRONICS”.
The brake booster will not be needed in future either.Slide3
HISTORY OF SBCRobert Bosch GmbH has played a role in many innovations. These include the first electronically controlled antilock braking system (ABS) in 1978, the traction control system (TCS) in 1987, and mass production of the Electronic Stability Program (ESP) in 1995.The company also helped Mercedes-Benz develop the most technologically advanced system in production—the electrohydraulic brake (EHB) also known as Sensotronic Brake Control (SBC).Slide4
CONVENTIONAL BRAKING SYSTEMUses piston rod which is linked to the brake booster and the master brake cylinder. Depending on the pedal force, the master brake cylinder builds up the appropriate amount of pressure in the brake lines.
Then presses the brake pads against the brake discs via the wheel cylinders.Slide5
Sensotronic brake controlIn SBC, electric impulses are used .A high pressure reservoir and electronically controllable valves ensure that maximum brake pressure is available much sooner.Offers innovative additional functions :
Traffic Jam Assist(using cruise control stalk) The Soft-Stop(By higher-precision pressure control)
Slide6
WHY SENSOTONIC BRAKE
Brake pedal: Electronics instead of a vacuum
Control unit
: P
ressure modulators for each wheel
Faster and more preciselySlide7
Conventional Braking SBC BrakingSlide8
SBC COMPONENTS Microcomputer:- This system calculates the braking force for each wheel individually.
High Pressure Accumulator:- High-pressure accumulator contains the brake fluid which flows into the system .
Hydraulic Unit:-
T
hey meter the brake pressure according
to requirements and pass it to the brakes.
Wheel Speed Sensor:-
Generating signals representative
of the wheel-speed. Slide9
SBC COMPONENTSSlide10
Features of SBCEMERGENCY BRAKING- R
ecognizes the driver’s rapid movement from the accelerator onto the brake pedal DRIVING STABILITY- It stops the car from turning aside suddenly
COMFORT
-
P
rovides comfort particularly during sharp deceleration or when the anti-lock braking system is operational
BRAKING IN CORNERS-
SBC offers the possibility of assigning brake forces in a way appropriate to the situationSlide11
ELECTRONIC SENSORS USED IN SBC PEDAL TRAVEL SENSOR (Situated at brake pedal)STEERING ANGLE SENSOR (Situated at steering)
WHEEL SPEED SENSOR (Situated at every wheel)HYDRAULIC UNIT SENSOR (Situated at front wheel)Slide12
SENSORS PLACED IN CAR BODYSlide13
SBC: MAIN COMPONENTS AND FUNCTIONS Anti-lock braking system: It is a safety system which
prevents the wheels on a motor vehicle from locking up while braking.
Electronic stability control:
It is a computerized
technology that improves the safety of a vehicle's stability
by detecting and minimizing skids.Slide14
ANTI-LOCK BRAKING SYSTEM Offers improved vehicle control and decreases stopping distances on dry and especially slippery surfaces.
applies individual brake pressure to all four wheels through a control system. Wheel speed sensors monitor each wheel speed
If a fault develops in any part of the ABS, a warning light will usually be illuminated on the vehicle instrument panelSlide15
ELECTRONIC STABILITY CONTROL [ESC] Improves the safety of a vehicle's stability by detecting and minimizing skids.
When ESC detects loss of steering control, it automatically applies the brakes. ESC does not improve a vehicle's cornering performance.
ESC can work on any surface, from dry pavement to frozen lakes.Slide16
ESCSlide17
THE CONCEPT FOR THE PRESSURE SENSOR Silicon micro machined piezo-resistive pressure sensor chip is used.
They have two different sensitivities.
A higher one in a low-pressure range (0 to 30 bar).
A lower one at higher pressures (up to 250 bar).Slide18
SBC: ADD-ON FUNCTIONS Drive-Away Assist: Prevents the car from rolling backwards or forwards on hill or steep drives.
Traffic Jam Assist function: In traffic drivers only need to use the accelerator pedal.
Dry-braking:
Activated when the car’s windscreen wipers are running.
Soft-Stop
:
Ensures particularly gentle and smooth stopping.Slide19
FUTURE SCOPE Automatically guide the cars of the future along the roads.
Future along the roads with the aid of video cameras, radar, advance telematics.
Use of Electronic-Autopilot mode in emergency
brakin
g.Slide20
MERITSIt raise braking comfort.Reduces the time for application of brakes.
Provides stability control.Provides soft and smooth stop during normal braking.Slide21
DEMERITS OF SBCCOST: Increases due to electronic components.
ASSEMBLING: Slight complex assembling.
DIFFICULT FOR MAINTENANCE:
Prone to environment conditions.Slide22
CONCLUSION With reference to the advantages and dis-advantages it is concluded that the SBC system may take the place of a conventional brake system in the future. One of the most important dis-advantage that is its higher cost due to the electronic components will get reduced after the adaptation of this system by all automobile companies. Also the maintenance of the electronic component will be easy when we shall get familiar with this system.Slide23
THANK YOU