VEHICLE SAFETY
REGULATIONS
BASIC TERMS

What is vehicle crash ?

What is vehicle safety ?

Types of vehicle safety -

Active safety –
ABS, electronic stability control, mirrors reflectors, tire pressure monitoring

Passive safety –
Airbag, seat belt, collapsible steering column, laminated windscreen
TERMS ESSENTIAL FOR UNDERSTANDING

EEC vehicle classification –
Classified as per
1. Purpose of vehicle
2. Number of seats
3. Mass of vehicle
TABLE

Seating reference point

Hip point DIAGRAM

Acceleration or deceleration by g-force

GVWR or GVM

Dummy
Hybrid III
EURO-SID
Bio-RID
DIAGRAM
Regulatory Crash Regulation
1. AIS 098

Type of collision, Category of vehicle

Test procedure
A car before crash
A car after crash

Judging structural criteria
Steering wheel displacement, dummy release force, fuel leakage rate

Judging criteria for occupant protection
2. AIS 099

Type of collision, Category of vehicle

Test procedure
A car before crash
A car after crash

Judging structural criteria
Rupture after impact, fuel leakage rate

Judging criteria for occupant protection
VEHICLE INTERIOR REGULATIONS
1. ECE R-21

Area of application, Category of vehicle

Impact zone for frontal collision

Test Procedure
Deceleration of head, no sharp edges

Judging Criteria
Impact zone for lateral collision
2. FMVSS 201U

Area of application, category of vehicle

Test procedure
ECE R 21
FMVSS 201U
THANK YOU
Test Procedure ECE R21

A spherical head form of diameter 165 mm and mass of 6.8 kg impacting on
Instrument panel with initial velocity of 24 kmph
VEHICLE INTERIOR REGULATIONS

FMVSS 201 (Federal Motor Vehicle Saftey Standards)
FMVSS 201applies to passenger cars and multipurpose passenger vehicle, Trucks and
buses with a GVWR of 4536kg or less with regard to;
o
Instrument panel and seat back
o
Interior compartment doors
o
Sunvisors
o
Armrests
Test Procedure FMVSS 201
A spherical head form of diameter 165 mm and mass of 6.8 kg impacting on Instrument
panel with initial velocity of 24 kmph
VEHICLE INTERIOR REGULATIONS
Head impact regulation FMVSS 201U
This standard applies to occupant protection in upper interior head impact for passenger
cars, trucks,buses and multipurpose passenger vehicles with GVWR of 4536 kgs or less.
This Regulation includes free motion head for interaction with upper interior
components, including pillars, side rail, headers and roof
TEST PROCEDURE FMVSS 201U
A free motion head form (FHM) of mass 4.54 kg impacts with a velocity of 24 kmph
with upper interior parts . Data is collected from tri-axial accelerometer inside the head
form CG and analyzed for injury criteria. The impact points are marked according to test
procedure TP201U-01
FMVSS 201U Head Impact Points
Commercial Trucks (N1)

ECE R29
The regulation applies to vehicle with separate driver's cab of category N1 with
regard to the protection of the occupants of cab.
TEST PROCEDURE:
Front Impact Test (Test A) :
The swing–bob with mass of 1500 kg with dimensions 2500 mm wide and 800 mm
high with impact energy of 29.4 kJ for vehicles of permissible maximum mass up to
7.5 tones and 55 kJ for vehicles for which maximum mass exceeds 7.5 tones
Front Impact Test (Test B) :
The swing-bob with mass of 1000 kg and with dimensions diameter 600 mm +/-50
mm and 2500 mm width. The impactor should provide29.4KJ energy. Center of
gravity of impactor should be midway between lower and upper windscreen frame
Roof strength test (Test C) part 1:
The impactor with mass 1500 kg strikes at an angle of 20 deg to the median longitudinal
plane of the cab as shown in fig. 8.0.3 The impactor
applies minimum 17.6 kJ impact energy.
Thank you