It’s easy to gauge the safety of a house. The strength of the
doors and windows will indicate that. But what happens inside a four-wheeled vehicle!
Mere doors and windows don’t protect the passengers sitting inside the car. There
are multiple methods that have been incorporated by the auto companies in order
to address this common concern. Seat belts, airbags, ABS, EBD and collapsible
steering are all such items that aim to improve the safety index of a passenger
car. Now, how does a company or an auto association regulate this index? The
answer is crash tests. There are various forms of crash tests that are pressed
upon the vehicles and the effects are rated by experts depending on the damage
done to the dummy sitting behind the wheels.
The countries across the world
have resorted to various acceptance levels of this rating, largely depending
upon the development of the domestic auto industry.
The various forms of crash testing are:-
- Frontal
- Frontal off-set
- Side on
- Steering impact
- Seat-belt anchorage
- Rear impact
- Roof strength
- Roll over testing
- Component testing like- a. Pedestrian; b. Child safety
The testing methods of some of the above mentioned ones are
given below:-
FRONTAL
·
40 % ± 20 mm overlap in 56 km/h. (EU); 30 mph
0o ± 30o (USA)
·
Deformable barrier (AL honeycomb).
·
Two
Hybrid III dummies in the front seats (injury criteria).
·
No door is allowed to open during test and the
front doors may not bejammed.
·
It should be possible to open at least one
door per passenger row without tools after crash and the maximum force needed
to unbuckle the crash test dummy is 60 N. Further on, the dummy must be
removable without adjusting the seats.
·
The fuel leakage may not exceed 30 g/min.
India follows the USA version.
SIDE IMPACT
·
A movable deformable barrier (MBD) weight of 950
± 20 kg
·
Ground clearance: 300 ± 5 mm
·
Velocity: 50 ± 1 km/h (EU); The barrier
strikes the vehicle oblique to simulate a speed of
30 mph for the striking vehicle and 15 mph p g p for the struck
vehicle.(USA)
·
EUROSID crash test dummy
India follows the USA version but only
the static impact
REAR COLLISION
For this test, a moving barrier of weight 4000 lbs and speed
30 mph is made to hit the car.
COUNTRY – WISE CRASH TESTING REGULATION
India
·
Frontal crash
·
steering impact
·
seat-belt anchorage
Europe
·
Steering Mechanism Impact
·
Seat Belt Anchorage
·
Restraints and Safety Belts
·
Seat Anchorages & Head Restraints
·
Non-incorporated Head Restraints
·
Rear-End Collision
·
Child Restraints in Power Driven Vehicles
·
Frontal Collision Safety
·
Occupant Protection in Lateral Collision
United States of America
·
Interior head impact
·
Interior head impact (Pole)
·
Interior head impact (Upper)
·
Head Impact
·
Head Restraints
·
Steering Control Impact
·
Steering Control Rearward Displacement
·
Seating
·
Occupant Crash Protection
·
Seat Belt Assemblies
·
Anchorages for Seat Belt Assemblies
·
Child Restraint System
·
Protection from Side-Impact
·
Protection from Rear-Impact
·
Anchorage Systems for Child Restraints
KOREA
·
Full-wrap frontal collision test (against a
rigid barrier at 56km/h)
·
Offset frontal collision test (against a
deformable barrier at 64km/h)
·
Side collision test (against a moving barrier at
55km/h)
·
Pedestrian (head and leg) protection performance
test
·
Neck protection test in a rear-end collision
·
Braking performance test
·
Roll over test
CHINA
·
Full-wrap frontal collision test (including AF05
passenger in rear seats)(against a rigid barrier at 50km/h)
·
Offset frontal collision test (including AF05
passenger in rear seats)(against a deformable barrier at 56km/h)
·
Side collision test (against a moving barrier at
50km/h)
·
Installation seatbelt reminder, ISO-FIX
anchorage assessment
AUSTRALIA, NEW ZEALAND
·
Offset frontal collision test (against a
deformable barrier at 64km/h)
·
Side collision test (optionally pole
test)(against a pole at 29km/h)
·
Pedestrian (head and leg) protection performance
test
·
Installation of ESC equipment
This clearly shows that cars available in the Indian market
are not the safest. ARAI needs to bring in stricter norms for the companies to
adhere. Else, the customers will continue to suffer from lack of safety in the
cars.