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Patent registration in German language.
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Patent registration in English.
Abstract
Summary
Task 1 (task)
Pedestrians are particularly at risk in traffic accidents with motor vehicles. A new
Danger silent electric vehicles are often later perceived by pedestrians
be. Task to improve the passive safety is one
multi-lane vehicle in case of a frontal collision with a pedestrian.
Solution
Solution 1
By a novel shape becomes pedestrian at one tilts the bumper/spoiler
Collision also laterally so that a rolling movement on the vehicle will be initiated.
Task 1 is solved by a modified kinematics of the pedestrian head-on collision.
Patent description
Description
The invention relates to the front panel for motor vehicles before an internal
Bumper, the change of the kinematics of the pedestrian collision at the front of the vehicle, the
Reducing the air resistance of the vehicle and the feeding of the ambient air to
vehicle-side heat exchangers.
1 pedestrian protection by changing the kinematics of the pedestrian collision
1.1. the object of the invention is the pedestrian protection in collisions of pedestrians
to improve on the front of the vehicle.
A high number of accidents resulting in death in the road caused by frontal
Collisions between pedestrians and motor vehicles. In the area of Electromobility
increases to the risk because these vehicles through pedestrian acoustically less
be perceived. The objective is to minimise the consequences of an accident at one of
A motor vehicle pedestrian impact. In the event of frontal pedestrian impact
the movement should be adjusted on the vehicle, that the energy of the
Impact more on the vehicle is derived and reducing the consequences of accidents
be.
Integrated bumpers belong to the State of the art with elastic materials
and a soft front bumper to mitigate the impact. Some attempts with
high vehicle fronts to provide a large contact surface for impact and
by better deformable vehicle fronts and hoods of the head impact
to weaken. Good results with series vehicles are by active bonnet
(pop up hood) reached.
The movement of pedestrian impact has known systems
together, that the pedestrians according to his size against the direction of travel
above the bumper, the bonnet and depending on the size up to the windscreen
will be settled against the direction of travel on the vehicle. This process is as
Identifies the primary shock. Completion on the vehicle with final
Impact of the head catapulted it walking in direction of travel on the road
caused to the so-called secondary impact of more injuries.
1.2 the task is due to a change of design on the front of the
Vehicle by a nose (3) Adaptive front dissolved. How to contact with height (26,
- 1 –
(27) above the road surface (1) is in the middle of the lower leg of an adult
People. In the event of collision with a pedestrian (21) is a rolling movement on
initiated the vehicle. This changes the kinematics of the pedestrian collision.
The pedestrian (21) is the new vehicle geometry at contact at
Lower leg perpendicular to the direction of travel (33) tilted so that a rolling motion across on
the vehicle is launched.
It arises in consequence of the collision and the lateral tipping a rotation of the
Pedestrian around its vertical axis (22).
The wheels on the vehicle increases the contact surface (25) between
Pedestrian and vehicle.
Due to the altered kinematics of pedestrian impact energy is large
distributed. The rolling motion reduces the force of the head supplement on the vehicle.
Child pedestrians, the contact with the vehicle run cheaper because collisions
is significantly lower level of adult leg than in the past.
It remains less energy, by rolling off the the pedestrian to the secondary shock
catapulted onto the road.
The changed geometry of the vehicle reduces the risk of the most
deadly driving over (third push).
The new vehicle geometry with the longer front attachment is on additional
Pedestrian crumple zone (20) won what the impact further mitigate.
The front attachment is by elastic plastic foams (16, 42) against the integrated
Bumper support. The elastic plastic foams are so arranged that
They deform himself in a collision with a pedestrian in an appropriate manner
Let.
1.3 example of the motion of a pedestrian collision at the front of the vehicle.
In the motion, is a pedestrian (21) by a motor vehicle between the
Nose/pedestrian tipping (3) (2) front body part and the lower legs of the
Pedestrian (21) records. By the Pfeilungswinkel (4) the
Nose/pedestrian tipping (3) is the vertical axis of the pedestrian (22) across the Tilted direction. By the low level of contact (26, 27) pedestrian protection
above the ground (1) and the rear offset angle flat (5, 6) between the road
(1) and the tangent about the front of the vehicle Gets the pedestrian over a large
Contact with the vehicle part of body height. In conjunction with the side
- 2 –
Tilting of the pedestrian is a rotation of the tilted pedestrian on the
Vehicle. As a result, less bending moments on the body of the pedestrian arise.
The rolling behavior of the pedestrian on the vehicle reduces the balance of the
Head supplement because the energy is distributed previously better and derived.
Patent claims
Patent claims
(1) a multi track motor vehicle with a front attachment before an internal
Bumper is characterized by a nose on the front attachment, Which one the
Kinematics of the pedestrian collision changed so that the pedestrian is tilted laterally
in a row with a rolling motion with a lesser risk of injury on the
Vehicle is initiated.
(a) the amount of the swept leading edge of pedestrian tipping the
Front body part one is located at middle height of the lower leg
adult people.
(b) the swept leading edge of pedestrian swivel has a minimum width of
28% of the vehicle width and a maximum width of 82% of the width of the vehicle.
(c) the Pfeilungswinkel of pedestrian swivel is at least 14°
and maximum 51 °
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