Gm Global Technolgoy Operations, Inc.

Magna Electronics Europe Gmbh & Co Kg

Martin Zilg

Werner Schmidt

Volker Scheuch

Joachim Schäfer

Joachim Schaefer

Andree Hündling

Frank Goseberg

A vehicle is provided having an active bonnet and a pyrotechnic actuator configured to lift the active bonnet a plurality of times without having to perform maintenance on the pyrotechnic actuator. The pyrotechnic actuator includes a cylinder having an inlet opening, a first chamber and a second chamber that are separated by a central region; a piston that is configured to be displaced through the central region of the cylinder between a first position in the first chamber and a second position in the second chamber; and a carrier having first and second gas generators each being coupled to the inlet opening. The first gas generator is configured to be ignited to lift the active bonnet a first time, and the second gas generator is configured to be ignited independently of the first gas generator to lift the active bonnet a second time.

Pyrotechnic actuator with a cylinder having communicating chambers

A pyrotechnic actuator for an active bonnet is provided that includes, but is not limited to a cylinder, a piston which can be displaced in the cylinder under the influence of a propellant gas and a first gas generator for producing the propellant gas. The actuator includes, but is not limited to at least one further gas generator, which can be ignited independently of the first gas generator.

A pneumatic actuator is provided for an active bonnet. The pneumatic actuator includes, but is not limited to a cylinder and a piston transferable from a rest position to an extended position and lockable in its rest position. The piston, in its rest position, is held pre-stressed by a spring element in the direction of the extended state.

Actuator for active motor vehicle bonnet

A body for a motor vehicle comprises a frame, a bonnet connected on a first side to the frame by a hinge and on a second side by a bonnet lock, and at least one actuating element which can be extended in the event of an accident in order to raise the bonnet. The actuating element comprises a movable part acting on the first side of the bonnet. A catch of the bonnet lock is coupled to the movable part in order to release the bonnet lock (when said actuating element is extended.

Body for a motor vehicle

The invention relates to a lifting device for raising the hood () of a motor vehicle during a collision with a pedestrian. The device comprises a retaining member () for connecting the hood () to the vehicle bodywork () and a pyrotechnic explosive unit () for detaching the retaining member (). To guarantee a reliable operation, the device is equipped with lifting means () for raising the hood () into a collision position, the means being actuated by the energy of the explosive unit () released during the detachment of the retaining member ().

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Aschaffenburg/Nilkheim, Germany

Martin Zilg