Grammer Ag

Marco Hofmann

Johann Meier

Thomas Burger

The invention relates to a vehicle seat comprising at least one gas spring () which damps vibration and adjusts the seat height, said gas spring being arranged between a seat frame () and a base frame (), and comprising a valve arrangement () for adjusting the pressure in the gas spring () and a compressor () assigned to the vehicle seat (), said compressor having a drive motor for feeding compressed gas to the gas spring (), wherein a belt roller device comprising a belt () rolled around an axle () is arranged between the seat frame () and the base frame (), the first end () of said belt being attached to a belt roller mechanism () arranged on the seat frame () and the second end () of said belt being attached to the base frame (), and a detector () which detects a belt rolling movement is attached to the seat frame (). Use is made of an electronic control unit () for evaluating belt rolling movement signals detected within a predefined time period () for determining a seat height profile within the time period () and for controlling the valve arrangement () and/or the compressor () such that automatic, time-delayed seat height re-adjustment takes place if the seat height profile () determined for the time period () lies out of a position of symmetry in relation to a predefinable mean seat height (). Also disclosed is a method for carrying out such automatic seat height adjustment.

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Hahnbach, Germany

Marco Hofmann