PPT on SBC covers all for seminar

1. ARYA INSTITUTE OF
ENGINEERING & TECHNOLOGY
SEMINAR
ON
SENSOTRONIC BRAKING SYSTEM
Submitted To:-
Mr. Sandeep Jhamb
HOD ME
Submitted By:-
Devendra Meena
13EAIME851
ME-B

2. CONTENT
 INTRODUCTION OF BRAKES
 HISTORY OF SBC
 WHAT IS SENSOTRONIC BRAKE CONTROL?
 TYPES OF BRAKES
 WHY SENSOTONIC BRAKE
 SBC COMPONENTS
 FEATURES OF SBC
 ELECTRONIC SENSORS USED IN SBC
 FUTURE APPLICATIONS
 DEMERITS OF SBC
 CONCLUSION
 REFERENCES

3. INTRODUCTION OF BRAKES
 Brakes are mechanical devices used for retarding the
motion of a vehicle.
 Brakes are also used to stop the vehicle quickly within a
short distance.
 Brakes are also used to hold the vehicle at rest on an
inclined road against the pull of gravity.

4. HISTORY OF SBC
 Robert Bosch 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 electro hydraulic brake (EHB) also known as
Sensotronic Brake Control (SBC).

5. WHAT IS SENSOTRONIC BRAKE CONTROL?
o Sensotronic Brake Control is an innovative electronically
controlled brake system that is faster and more precise than the
conventional braking system.
o Sensotronic Brake Control (SBC) is the name given to an
innovative electronically controlled brake system which will fit to
future passenger car models.
o With Sensotronic Brake Control electric signals are used to pass
the driver’s braking commands onto a microcomputer which
processes various sensor signals simultaneously and, depending
on the particular driving situation, calculates the optimum brake
pressure for each wheel.

6. TYPES OF BRAKES
 Drum brakes
 Disk brakes
 Vacuum brakes
 Air brakes
 Hydraulic brakes
 Railway brakes

7. WHY SENSOTONIC BRAKE
 Brake pedal: Electronics instead of a vacuum
 Control unit: Pressure modulators for each wheel
 Faster and more precisely

8. BRAKE PEDAL
 In the Sensotronic Brake Control, a large number of mechanical
components are simply replaced by electronics.
 Sensors gauge the pressure inside the master brake cylinder as
well as the speed with which the brake pedal is operated, and
pass these data to the SBC computer in the form of electric
impulses.

9. CONTROL UNIT
 The central control unit under the bonnet is the centerpiece of the
electro-hydraulic brake.
 The microcomputer, software, sensors, valves and electric pump
work together and allow totally novel, highly dynamic brake
management.
 In addition to the data relating to the brake pedal actuation, the
SBC computer also receives the sensor signals from the other
electronic assistance systems. For example, ESP which makes
available the data from its steering angle and turning rate.

11. 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:- They meter the brake pressure according
to requirements and pass it to the brakes.
 Wheel Speed Sensor:- Generating signals representative of
the wheel-speed.

12. SBC COMPONENTS…

13. FEATURES OF SBC
• Emergency braking- Recognizes the driver’s rapid
movement from the accelerator onto the brake pedal .
• Driving stability- It stops the car from turning aside
suddenly.
• Comfort- Provides 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 situation.

14. 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)

15. FUNCTIONS OF SBC
 The Soft-Stop function of the SBC software ensures
particularly gentle and smooth stopping during heavy
traffic jams
 On a wet road surface the system metes out short brake
impulses at regular intervals to ensure that the water film
on the brake discs dries off and that SBC can always
operate with optimum effectiveness.
 On hills or steep drives the Sensotronic Brake Control
Drive-AwayAssist prevents the car from rolling
backwards or forwards – stepping onto the brake pedal
quickly but sharply is all it takes to activate the brake

16. FUTURE APPLICATIONS
 The advent of electronics in brake technology opens up
new and promising opportunities in the disciplines of
safety and comfort. By means of SBC we have also
moved a considerable way closer to the realization of
long-term objective, namely to be able to automatically
guide the cars of the future along the roads with the aid of
video cameras, proximity radar and advanced telematics.
For such autonomous vehicle guidance, the experts need a
computer-controlled brake system which automatically
acts on the instructions of an electronic autopilot and
stops the car safely.

17. DEMERITS OF SBC
 COST: Increases due to electronic components.
 ASSEMBLING: Slight complex assembling.
 DIFFICULT FOR MAINTENANCE: Prone to environment
conditions.

18. CONCLUSION
With reference to the advantages and disadvantages it is
concluded that the SBC system may take the place of a
conventional brake system in the future.
One of the most important disadvantage 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.

19. Thanks

20. REFRENCES
 www.google.com
 Wikipedia.org
 Mercedes cancels by-wire brake system; decision a
blow to technology's future: AutoWeek Magazine".
Autoweek.com. 2014-01-02