Conti Temic Microelectronic Gmbh

Mehmet Cini

Michael Beuschel

Stefan Bauer

Martin Ebel

Johann Riepl

Markus Ziegelmeier

The invention relates to a method for monitoring the pressure in a device for the pneumatic adjustment of a seat in a transportation means, in particular in a motor vehicle. The device comprises a plurality of cushions () which are able to be filled with air and which are connected via respective valves () to a common preliminary pressure volume (), wherein a pressure sensor () is provided for measuring the pressure (p) in the preliminary pressure volume () and the preliminary pressure volume () is coupled to a compressor () for supplying compressed air without a non-return valve being connected therebetween. For the purpose of monitoring the pressure in a respective cushion (), a predefined pressure is set in the preliminary pressure volume by way of operation of the compressor () and/or by way of air discharge from the preliminary pressure volume () via at least one leak, with the valve () between the respective cushion () and the preliminary pressure volume () closed, wherein the predefined pressure deviates from a target pressure (p, p, . . . , p) in the respective cushion () by at most 10% of the target pressure and/or at most 50 hPa. After the setting of the predefined pressure, the valve () between the respective cushion () and the preliminary pressure volume () is opened and the pressure in the preliminary pressure volume () is measured via the pressure sensor (). If the measured pressure (p) deviates from the target pressure (p, p, . . . , p), the measured pressure (p) is set to the target pressure (p, p, . . . , p) by way of operation of the compressor () and/or by way of air discharge from the preliminary pressure volume () via the at least one leak.

Method for monitoring the pressure in a device for pneumatically adjusting a seat in a transportation means

A device for pneumatically adjusting a seat in a transport vehicle, in particular in a motor vehicle, including one or more adjusting devices, each of which includes a pneumatic actuating device for adjusting the seat by generating pneumatic pressure, and including a trigger device, which the actuating device is switched from a standby state to an active state in response to a trigger signal when the device is being operated. The pneumatic actuating device brings about an adjustment of the seat in the active state. The pneumatic actuating device is designed such that the actuating device is mechanically preloaded in the standby state, and the mechanical preload is released in the active state in order to thus bring about the adjustment of the seat.

Device for pneumatically adjusting a seat in a transport means, in particular a motor vehicle

The invention relates to a method and to a corresponding device for filling at least one seat cushion of a seat with, and emptying same of, a fluid, in which, during a filling or emptying operation, depending on a switching state of an actuating member designed for filling or emptying the at least one seat cushion, a first pressure value determined upstream of a throttle point through which the fluid flows, and a second pressure value determined downstream of the throttle point, are detected, and, depending on the first pressure value and the second pressure value, an estimated value of a mass of fluid supplied to or removed from the at least one seat cushion is determined.

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Kipfenberg, Germany

Mehmet Cini