IT SAYS ABOUT RECENT AUTOMOBILE SAFETY SYSTEMS AND ADVANTAGES AND DISADVANTAGES

1. By
M.VASANTHAKUMAR
K.DHARMAN
SHREE MARUTHI POLYTECHNIC COLLEGE
Attur

2. Need for Automobile Safety
 Protection of the driver and the passengers
 Protection of the vehicle from primary damage
 Protection of the pedestrians
 Reduction of cost for insurance companies

3. New Car Assessment Program

4. Vehicle Safety Technology
 Safety systems in vehicles are important to avoid accidents
and safeguard human life.
 to ensure the safety and security of automobiles and
passengers.
 Introduction of hi-tech safety systems began in the year
1995 with Electronic Stability Control (ESC).

5. Methods in VST
 Driver alertness detection system
 Driver drowsiness detection
 Vehicle-to-vehicle communication
 Vehicular communication systems
 Electronic stability control (ESC)
 Warning and emergency braking systems
 Collision avoidance system
 Blind spot monitoring
 Lane support systems
 Speed alert
 Roll over protection

6. TYPES OF SAFETY SYSTEM
 Active safety system
 Passive safety system

7. Active Safety System
 Active Safety Systems as the term suggests play a
preventive role in mitigating crashes and accidents by
providing advance warning or by providing the driver
with additional assistance in steering/controlling the
vehicle.

8. Some Active safety systems are
 Head-Up Display (HUD)
 Anti-Lock Braking Systems (ABS)
 Electronic Stability Control (ESC)
 Tire Pressure Monitoring System (TPMS)
 Lane Departure Warning System (LDWS)
 Adaptive Cruise Control (ACC)
 Driver Monitoring System (DMS)
 Blind Spot Detection (BSD)
 Night Vision System (NVS)

9. Passive Safety System
 Passive Safety Systems play a role in
limiting/containing the damage/injuries caused to
driver, passengers and pedestrians in the event of a
crash/accident.
 Airbags
 Seatbelts
 Whiplash Protection System

10. DRIVER ASSISTANCE
 Driver assistance system helps the driver to detect obstacles and to
control the vehicle.
 Helps to prevent crashes caused by fatigue.
 Automatic Braking systems to prevent or reduce the severity of collision.
 Infrared night vision systems to increase seeing distance beyond
headlamp range.

11. DRIVER ASSISTANCE (continued….)
 Reverse backup sensors, which alert drivers to difficult-to-
see objects in their path when reversing
 Adaptive cruise control which maintains a safe distance
from the vehicle in front.
 Traction control systems which restore traction if driven
wheels begin to spin
 Electronic Stability Control which intervenes to avert an
impending loss of control

12. Active and passive restraints
Active restraint:
 Activated By The Passenger
Passive restraint:
 Takes place automatically
Seat belts:
 Often three-point belts
Air bags:
 Takes place automatically

13. Seat Belts
 Limit the forward motion of an occupant
 Stretch to absorb energy
 To lengthen the time of the occupant's negative
acceleration in a crash
 Reducing the loading on the occupants' body.
 They prevent occupants being ejected from the vehicle and
ensure that they are in the correct position for the
operation of the airbags.

14. Air bags
To prevention of direct impact of the driver's head with the
steering wheel and door pillar.
Driver and passenger side
Side air bags in seat backs and side curtain
Knee and rear seat

15. Active restraint
• Activated By The Passenger

16. Vehicle Tracking Systems
 Some newer vehicles are equipped with navigation systems
tracked by the GPS
 Feature road maps and voice prompts
 Night vision
 Infrared technology is used to assist when driving at night
 Ultrasonic rear parking assist
 Ultrasonic or radar based
 Rear view camera
 Provides backing and parking assistance

17. COLLISION AVOIDANCE SYSTEMS
Use a camera and radar sensors
Work with other adaptive cruise control sensor
inputs to sense speed and location of other
vehicles.

18. HYDRAULIC BRAKING SYSTEM

19. ANTI-LOCK BRAKING SYSTEM [ABS]
 It is an automobile safety system that allows the wheels of
the vehicle to maintain contact with the road surface.
Electric Sensors monitor the wheel speed
ABS microprocessor Compares the wheel speed
Control valve is energized

20. Advantages
Achieves the Shortest Stopping distance
Better chance on Steering around obstacle
Reduced risk of skidding
Disadvantage
Precautions should be taken while driving
Proved less effective on gravel road or road compacted
by snow.

21. PARKING SENSORS
The parking sensor is used for safety parking.
It is used in all new model cars.
Because this method was most useful for all of us

22. NIGHT VISION SAFETY SYSTEM
 Night vision safety is one of the main part of our life
because full most of accidents are happen in nights.
 Night vision systems use video cameras that are sensitive to
infrared to detect the heat given off by humans and animals
against the colder background of the roadway
environment.

23. TYRE PRESSURE MONITORING SYSTEM
 Tyre Pressure Monitoring Systems (TPMS) area way of
warning a driver that a tyre is incorrectly inflated,
which will decrease the safety and performance of the
vehicle, and increase the risk of an accident.
 TPMS report the real time pressure of the tyre to driver
of the vehicle via gauge, pneumatic systems.

25. Security system in automobiles
 Pass key systems
 Electronic valet
 Resistance key
 Transponder keys
 Keyless entry
 Electronic key systems
 Intelligent key systems
 Key fob batter
 Remote engine starting
 Illuminated entry

26. Conclusion
 Safety systems must be implemented for safe riding
and for saving precious lives.
 Lets hope every automobile manufacturer
implements the above automobile safety system
mentioned by us.

28. Bibliography
 www.google.com
 www.wikipedia.com
 www.edmunds.com
 www.automotive.electronicspecifier.com
 www.sciencedaily.com