goal of the invention is to provide the method of protecting the car
against blow effects, and to achieve the desired effect wherein the
kinetic energy of the blowing car into a vehicle during the collision
is transformed into work of displacement of the vehicle.It enables
reduction or elimination of the deformation of the car body. The advantage
of the invention is reduction of the reaction force of the weels on
the base in case of collision with another vehicle by elimination
of the weels contact with the base. It is achieved by rising the vehicle
by using the elastic cushions which have rolling elements while contacting
with the base.
System “JR” characterised by placing elastic air bags in the
bottom part of the vehicle.Every air cushions is in the shape of unit
having inside the gas release instantaneously operating,which is connected
to the outer impact detectors through the central driver.
The simulations show that the decrease of the coefficient of friction
between the tyres of the car and background during side collision
may cause that the deformation of the car is less so the passengers
of the car are safer.It is important to say that advatages are greater
for collisions with heavy cars of great speed.
According to the National Highway Traffic Safety Administration*
car drivers are 16 times more likely to die than SUV drivers and 26
times more likely die than picup drivers when their cars are hit in
side- impact collisions.When a car hits another car ,the driver who
is struck is only seven times more likely to die.
effectiveness of the invention “JR System” in protecting the occupant
in side impact collision
Kajetan Kietliński and Michał Pędzisz
Virtual Safety Engineering and Biomechanics Laboratory, Institute
of Aeronautics and Applied Mechanics,
Warsaw University of Technology, Poland
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Highway Traffic Safety Administration* - NHTSA - www.nhtsa.com