Sensor device for a vehicle seat

• US 6,768,065 B2
• Filed: 08/06/2002
• Issued: 07/27/2004
• Est. Priority Date: 08/07/2001
• Status: Active Grant

• Current Assignee: Adient US, LLC (Adient plc)
• Original Assignee: Recaro GmbH & Co. KG (Johnson Controls International plc)
• Inventors: Kespohl, Horst, Bertenburg, Peter
• Primary Examiner(s): Gibson, Randy W.
• Application Number:
  US10/213,680
• Publication Number:
  US 20030030563A1
• Time in Patent Office: 721 Days
• Field of Search: 180/273, 280/735, 177/136, 177/144, 701/45, 738/620.43, 738/620.44, 738/620.45, 737/67, 737/68, 738/626.31, 738/626.42, 738/626.35
• US Class Current: 177/144
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60R 21/01516 using force or pressure sensing means
• CPC Class Codes: B60R 21/01526 using piezoelectric elements

Abstract

A sensor device (11) for a vehicle seat, in particular a motor vehicle seat, has at least one sensor (15) for the detection of forces inside the vehicle seat. The vehicle seat has at least one bearing area between two components that are mobile relative to one another, and the sensor device (11) is installed in the bearing area.

Claims

1. A sensing system for a vehicle seat, comprising:

at least two components of the vehicle seat, wherein the two components are mounted so that a bearing area is positioned between the two components, so that there can be relative movement between the two components by way of the bearing area; and

a sensor device is installed in the bearing area and includes at least one sensor for detecting forces inside the vehicle seat,

wherein the sensor device comprises a socket that is mounted in the bearing area between the two components, the socket defines a circumferential direction, the sensor device includes a plurality of sensors, and at least three of the sensors are mounted in the circumferential direction of the socket, and wherein the sensors are positioned either;

inside a bearing element of the socket, or

between two bearing elements of the socket, with said two bearing elements being positioned one inside the other.

2. A sensing system according to claim 1, wherein the bearing area is one of four lower bearing areas of a seat underframe of the vehicle seat, and the sensor device is one of a plurality of sensor devices that are arranged so that for each of the lower bearing areas, one of the sensor devices is installed in the lower bearing area, whereby the sensor devices are respectively installed at the lower bearing areas, and wherein the seat underframe is operative so that at least one of a height and an inclination of the seat underframe can be adjusted.

3. A sensing system according to claim 1, wherein the socket defines an axial direction that is at least generally perpendicular to the circumferential direction, and at least two of the sensors are in the socket and arranged in the axial direction.

4. A sensing system according to claim 3, wherein:

at least one of the sensors is operative for emitting electrical signals in response to sensing forces that are directed radially with respect to the axial direction and, and

at least one of the sensors is operative for emitting electrical signals in response to sensing forces that are directed in the axial direction.

5. A sensing system according to claim 3, wherein at least one of the sensors is an axial sensor that is operative for emitting electrical signals in response to sensing forces that are directed in the axial direction, and the axial sensor is positioned between a flange and a part that are respectively parts of said two bearing elements that are positioned one inside the other.

6. A sensing system according to claim 1, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

7. A sensing system according to claim 3, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

8. A sensing system according to claim 4, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

9. A sensing system according to claim 5, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

12. A sensing system according to claim 3, wherein the bearing area is one of four lower bearing areas of a seat underframe of the vehicle seat, and the sensor device is one of a plurality of sensor devices that are arranged so that for each of the lower bearing areas, one of the sensor devices is installed in the lower bearing area, whereby the sensor devices are respectively installed at the lower bearing areas, and wherein the seat underframe is operative so that at least one of a height and an inclination of the seat underframe can be adjusted.

13. A sensing system according to claim 4, wherein the bearing area is one of four lower bearing areas of a seat underframe of the vehicle seat, and the sensor device is one of a plurality of sensor devices that are arranged so that for each of the lower bearing areas, one of the sensor devices is installed in the lower bearing area, whereby the sensor devices are respectively installed at the lower bearing areas, and wherein the seat underframe is operative so that at least one of a height and an inclination of the seat underframe can be adjusted.

14. A sensing system according to claim 5, wherein the bearing area is one of four lower bearing areas of a seat underframe of the vehicle seat, and the sensor device is one of a plurality of sensor devices that are arranged so that for each of the lower bearing areas, one of the sensor devices is installed in the lower bearing area, whereby the sensor devices are respectively installed at the lower bearing areas, and wherein the seat underframe is operative so that at least one of a height and an inclination of the seat underframe can be adjusted.

10. A sensing system for a vehicle seat, comprising:

at least two components of the vehicle seat, wherein the two components are mounted so that a bearing area is positioned between the two components, so that there can be relative movement between the two components by way of the bearing area; and

a sensor device is installed in the bearing area and includes at least one sensor for detecting forces inside the vehicle seat,

wherein the sensor device comprises a socket that is mounted in the bearing area between the two components, and

wherein the socket defines a circumferential direction, and the socket has an outer contour which is asymmetrical in the circumferential direction.

11. A sensing system according to claim 10, wherein the bearing area is one of four lower bearing areas of a seat underframe of the vehicle seat, and the sensor device is one of a plurality of sensor devices that are arranged so that for each of the lower bearing areas, one of the sensor devices is installed in the lower bearing area, whereby the sensor devices are respectively installed at the lower bearing areas, and wherein the seat underframe is operative so that at least one of a height and an inclination of the seat underframe can be adjusted.

15. A sensing system for a vehicle seat, comprising:

a sensor socket that includes at least one bearing element and is mounted between two components of the vehicle seat for allowing relative movement between the two components, wherein the sensor socket defines a circumferential direction, the sensor socket includes a plurality of sensors for detecting forces inside the vehicle seat, at least three of the sensors are mounted in the circumferential direction of the socket, and the three sensors are positioned inside the bearing element of the socket.

17. A sensing system according to claim 15, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

18. A sensing system according to claim 15, wherein the socket defines an axial direction that is at least generally perpendicular to the circumferential direction, and at least two of the sensors are arranged in the axial direction.

16. A sensing system for a vehicle seat, comprising:

a sensor socket that includes at least one bearing element and is mounted between two components of the vehicle seat for allowing relative movement between the two components, wherein the bearing element is a first bearing element, the sensor socket further includes a second bearing element positioned inside the first bearing element, the sensor socket defines a circumferential direction, the sensor socket includes a plurality of sensors for detecting forces inside the vehicle seat, at least three of the sensors are mounted in the circumferential direction of the socket, and the three sensors are positioned between the first and second bearing elements.

19. A sensing system according to claim 16, wherein the socket has an outer contour which is asymmetrical in the circumferential direction.

20. A sensing system according to claim 16, wherein the socket defines an axial direction that is at least generally perpendicular to the circumferential direction, and at least two of the sensors are arranged in the axial direction.