1) The document discusses several new vehicle safety systems including airbags, energy-absorbing bumpers, and rollover protection systems.
2) Airbags include supplemental restraint systems, side impact airbags, head protection airbags, knee bolsters, and seat belt pretensioners. Newer vehicles can have 1-14 airbags in various locations.
3) Rollover protection systems use sensors to detect potential rollovers and deploy roll bars or pop-up roofs to protect occupants. Rescuers must be aware of deployment zones during extrication.
4. New Vehicle
Safety Systems
VEHICLE AIRBAG
A) Deployed airbag is usually safe
1. Dust residue from deployed airbags
can be hazardous if it contacts the
skin or is inhaled
a) Use appropriate personal
protective equipment
5. New Vehicle
Safety Systems
VEHICLE AIRBAG
B) Types of airbag systems
1.Supplemental Restraint Systems
(SRS)
2.Side Impact Protection Systems
(SIPS)
3.Head Protection Systems (HPS)
4.Knee bolsters
5.Seat belt pretentioners
6. New Vehicle
Safety Systems
VEHICLE AIRBAG
C) Undeployed airbags
1.Steering wheel
2.Inflatable tube/side airbags
3.Window curtain
4.1998 and newer vehicles can
have 1-14 airbags
8. New Vehicle
Safety Systems
VEHICLE AIRBAG
Rollover Sensor ( inclinometer)
• Designed to measure the lateral and
vertical acceleration, vehicle speed
and roll rate to predict an impending
rollover
• When the sensors detect a potential
rollover, the control module triggers
the curtain airbags and seat belt pretensioners
10. New Vehicle
Safety Systems
VEHICLE AIRBAG
New Style Curtain Airbag
• "Safety Canopy" airbags
• In SUV’s 3rd Row Seating
• Tethers located on the bottom corners
of the bag, lock them in place to
prevent occupants from being ejected.
11. New Vehicle
Safety Systems
VEHICLE AIRBAG
Safety Canopy Extrication Safety
• During cutting operations, rescuers
should be aware that with the addition
of the third row section, they may find
two compressed gas inflaters on both
sides of the roof rail instead of one
• These must be visually exposed before
cutting operations begin
12. New Vehicle
Safety Systems
VEHICLE AIRBAG
Safety Canopy Concerns:
• These airbags have a controlled
deployment speed and may deploy
much faster than other airbags. The
deployment zone is from the roof rail
to the bottom of the window, the full
length of the vehicle and the bag is
about 5 inches thick
13. New Vehicle
Safety Systems
VEHICLE AIRBAG
Safety Canopy Concerns:
• Never lean through the window when
approaching the vehicle.
• These deploy straight down about 18
inches, or to the bottom of the
window and are capable of snapping a
person's neck
16. New Vehicle
Safety Systems
VEHICLE AIRBAG
D) Disabling the airbag
1. Disconnect battery
2. Some models stay active for up to 30
minutes after power is disconnected
23. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
“Roll Over Protection System (ROPS)” refers to
operator compartment structures (usually cabs or
frames) intended to protect equipment operators and
motorists from injuries caused by vehicle overturns or
rollovers
Backup power supply – In case main power shuts off
Remote Batteries in some vehicles
Safety:
Manual Deployment: Usually on the dash
Takes approximately 4 seconds
Personnel can now safely work and hold C-Spine
28. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Actuator:
1. Inclinometer used to
sense vehicle inclination
and lateral acceleration
2. G-sensor that detects
vehicle weightlessness if
the vehicle becomes
airborne
30. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Actuator Limitations:
• When the vehicle approaches a lateral angle limit of 62
degrees.
• When the vehicle experiences a lateral acceleration of
approximately 3 Gs.
• When the vehicle approaches it's longitudinal angle
limit at approximately 72 degrees.
• When a combination of longitudinal acceleration and
longitudinal angle would cause the vehicle to roll over in
the forward direction.
• When the vehicle becomes airborne and achieves
weightlessness for at least 80ms.
32. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Flip-up Type:
•
•
Deployable rollbars are concealed
until activated.
Flip up in less than three tenths of
a second, much the same as a
deploying airbag
Example: Mercedes two seat
roadster
34. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Deployment:
•
•
Deployable rollbars are concealed
until activated.
Flip up in less than three tenths of
a second, much the same as a
deploying airbag
Example: Mercedes two seat
roadster
38. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Extrication Safety:
The control module is just like the
ones used with SRS systems.
They contain capacitors that supply
power to the system in case the
battery is destroyed in the crash.
The average capacitor drain time is 10
seconds.
40. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Extrication Safety:
EMS personnel should never lean
over the back of a convertible as in
holding C-Spine on an occupant. This
would put the rescuer's head right
over the undeployed roll-bar
41. New Vehicle
Safety Systems
ROLLOVER
PROTECTION SYSTEM
Extrication Safety:
Rescuers must stay out of the
deployment zone in these cases. The
deployment zone is 20 inches straight
up from the bars