Details presentation

1. Presented by – Chandu Sajitha Anoop
S5 | Mechanical | Roll-22 | JBC
Thanks – Anuvind Sir ( Class Tutor )
S5 | Mechanical | JBC

2. What we see ?
 Why vehicles need to be engineered for a crash & crash survey
 Government mandates on safety
 Engineering done on vehicles for the resistance to crash
 Safety equipment in modern passenger vehicles
 Q&A Session

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2016 2017 2018 2019
Traffic collision fatalities statistics over years
Vehicle accidents

4. Importance of improving
the structure of a vehicle
o Protecting the occupants of the vehicle from harmful impacts that could lead to mortality
o Ensuring the safety of pedestrians along with the consideration of the safety of occupants
o Perfect stability can avoid most of the accidents; “Prevention is better than cure”
o Increases the life of vehicle, preventing it from stain/ cracks that could cause huge tragedies
o Reduces the maintenance cost of the vehicle

5. Government mandates
o 6 Airbags compulsory in all new passenger cars from 1st October 2023
o All passengers seats, provided with seatbelt
o Govt. considering to make ISOFIX seats mandatory for all cars carrying child occupant
o Pedestrian protection compliance design on all new vehicles and ban on any crash guard fittings
o Ban on sticker works in windshield | windows etc.

6. Engineering we adopted
on passenger cars
o Crumble Zone
o Pedestrian Safety norms
o Use of tempered glass in vehicles
o Speed sensing door locks
o Engine designed crash ergonomically

7. Crumble Zone
o Crumble zone is a portion of the vehicle that is intentionally manufactured weaker to easily
absorb the vehicles Kinetic energy to a controlled deformation
o Most efficient engineering to bring down the force to zero gradually in a head on collision
o Its on the basis of Newton’s 2nd law of motion
o Intended to bring a delay in the impact unlike in a rigid collision
o This helps reduce the human causalities

8. Pedestrian friendly
design
o Avoiding crash guards ( Bull bar ); They not only stops the crumble zone from absorbing
impact, but also avoid the air bags from working in a head on collision
o Complying with pedestrian safety norms
o Use of pedestrian air bags
o Use of plastic car bumpers

9. Tempered Glass
o Tempered glass wouldn’t break in sharp shards
o They instead break into tiny pieces that hardly causes any human causalities
o They are also safe to break in scenarios where the windows need to be used for evacuation

10. Speed sensing door lock
o Technique where all the doors get locked when a car passes a speed set by the manufacturer
o Ensures the cabin is completely / partially sealed from the outside
o Doors acts as a impact absorbing body in cases of rollover/ side collisions
o Avoid the possibilities of occupants being thrown out of the cabin in any crash situations
o Secures the children / occupants from accidently opening the doors while the automobile
is in motion

11. Safety equipment
o A B S – Anti Lock Braking System
o A B S – Autonomous Braking System
o E B D – Electronic Brake force Distribution
o Seatbelts

12. o ISOFIX Child seat anchors
o Airbags

13. Conclusion
o Safety is the one and only factor that has to be prioritized on any projects or machines
o With the increasing number of artificial intelligence technologies, the future is in on the safe
path in terms of safety
o We hope the manufacturers won’t compromise the safety and standards of the vehicles for
profit maximizations
References
o Traffic collision statistics India o Tamil Nadu car rollover cctv footage

14. Thank you
Any Questions ?