Bayerische Motoren Werke Aktiengesellschaft

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Stefan Hiermaier

Oeztzan Akif

Wilhelm Riedl

Gerhard Fichtinger

Arne Koehler

Randolf Hanke

Norman Uhlmann

Christian Hack

Siegfried Nau

Jens Fritsch

Stefan Moser

Malte Kurfiss

Rolf Behrend

Ines Butz

ÖZtzan Akif

A deformation structure has at least a first layer and a second layer, which are spaced apart from each other and are mounted to be movable relative to each other in the deformation direction or load direction. The first layer and the second layer have complementary protrusions and recesses, which are designed such that the protrusions of the first layer can dip into the recesses of the second layer and vice versa. The first layer and the second layer are connected to each other by deformable connecting pieces such that, in the event of a high impulse in the deformation direction, the protrusions of the first layer dip into the recesses of the second layer and the protrusions of the second layer dip into the recesses of the first layer such that the deformation structure is deformed in the deformation direction at a relatively low level of force and, in the event of a low impulse in the deformation direction, the protrusions of the first layer hit the protrusions of the second layer such that the deformation structure is deformed further in the deformation direction at a relatively high level of force. The deformation control device is formed or produced separately from the first and the second layer and is removably or non-removably connected to the first layer and the second layer.

Deformation structure and pedestrian protection device having a deformation structure

An example of a method for time-resolved calculation of a deformation of a body comprises calculating () a model of the body during the deformation. The method further comprises calculating () a predicted X-ray image for the body for a plurality of time points during the deformation based on the model. The method further comprises obtaining () one measured X-ray image of the body each for the time points during the deformation. The method further comprises modifying () the model based on the predicted X-ray images and the measured X-ray images.

Method and computer program for time-resolved calculation of a deformation of a body

A pedestrian protection device for a motor vehicle includes a bumper crossmember and a deformation element which is arranged on the bumper crossmember and which has a first element and a second element which are displaceable relative to each other in the event of a collision of the motor vehicle, and a mechanical locking mechanism. The locking mechanism has a movable locking element which is pretensionable or is pretensioned with a spring device and which is arranged on the first element or on the second element, and with a depression or step to which the other of the first element and the second element can be latched in a form-fitting manner. In the event of a high displacement speed which is greater than or equal to a predetermined second displacement speed, the locking mechanism prevents displacement of the first element relative to the second element by means of self-locking of the locking element. In the event of an average displacement speed which is lower than the predetermined second displacement speed and greater than a predetermined first displacement speed, the locking mechanism permits displacement of the first element and of the second element relative to each other.

Pedestrian protection device for a motor vehicle

Growing community of inventors

Freiburg, Germany

Stefan Hiermaier