Gas bag for a vehicle occupant restraint device

• US 20060151980A1
• Filed: 12/28/2005
• Published: 07/13/2006
• Est. Priority Date: 01/11/2005
• Status: Abandoned Application

• Current Assignee: TRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: TRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Britz, Thomas
• Application Number:
  US11/319,326
• Publication Number:
  US 20060151980A1
• Time in Patent Office: Days
• US Class Current: 280/743.100
• CPC Class Codes: B60R 2021/01204 Actuation parameters of safety arrangents
• CPC Class Codes: B60R 2021/23509 Fabric
• CPC Class Codes: B60R 2021/2765 comprising means to control the venting
• CPC Class Codes: B60R 21/01508 detecting forces or pressure in bags or modules
• CPC Class Codes: B60R 21/01526 using piezoelectric elements
• CPC Class Codes: B60R 21/01528 mounted on the bag
• CPC Class Codes: B60R 21/235 characterised by their material

Abstract

A gas bag for a vehicle occupant restraint device includes a gas bag wall (16). The gas bag (12) has a fabric (26) with fibres which are coated with a material having piezoelectric characteristics.

Claims

1. A gas bag for a vehicle occupant restraint device, the gas bag including a gas bag wall, the gas bag having a fabric with fibres which are coated with a material having piezoelectric characteristics.

2. The gas bag according to claim 1, wherein the gas bag wall is formed substantially entirely from the fabric.

3. The gas bag according to claim 1, wherein the gas bag wall is partially formed from the fabric.

4. The gas bag according to claim 1, wherein the fabric is fastened to the gas bag wall.

5. A vehicle occupant restraint device comprising a gas bag, the gas bag including a gas bag wall and having a fabric with fibres, the fibres being coated with a material having piezoelectric characteristics, the vehicle occupant restraint system further including an electronic control for picking up and evaluating the electrical signals of the fabric.

6. The vehicle occupant restraint device according to claim 5, wherein the gas bag has an electrically controllable arrangement provided on the gas bag wall.

7. The vehicle occupant restraint device according to claim 6, wherein the electronic control controls the electrically controllable arrangement as a function of the signals picked up from the material having piezoelectric characteristics.