Method for weighting a seat profile

• US 20040051376A1
• Filed: 09/08/2003
• Published: 03/18/2004
• Est. Priority Date: 10/17/2000
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Mack, Frank, Lich, Thomas
• Granted Patent: US 6,950,776 B2
• Time in Patent Office: Days
• US Class Current: 307/10.1
• 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

Abstract

A method is proposed for evaluating a seat profile, in which a quality parameter with which the profile is evaluated, is first weighted with a dynamic factor. This dynamic factor is determined with the aid of the seat profile and/or at least one center of gravity. The seat profile characterizes the continuous changes in sensors of a sensor matrix, whereas, for the center of gravity, position changes in the at least one center of gravity are continuously monitored. The dynamic factor is then determined from a weighted sum of the changes in the sensors of the sensor matrix and the position changes of the at least one center of gravity. If appropriate, a holding function may be applied to the dynamic factor.

Claims

1. A method for weighting a seat profile, the seat profile being determined with the aid of a sensor matrix (1) in a seat mat in a vehicle seat, wherein the seat profile is weighted with a quality parameter;

a dynamic factor is determined on the basis of changes in the seat profile and/or changes in at least one center of gravity determined for the seat profile; and

the quality parameter is weighted with the dynamic factor.

2. The method as recited in claim 1, wherein, for the seat profile, changes in sensors of the sensor matrix (1) are continuously monitored to determine the dynamic factor.

3. The method as recited in claim 1 or 2, wherein position changes of the at least one center of gravity are continuously monitored to determine the dynamic factor.

4. The method as recited in claim 2 or 3, wherein the dynamic factor is determined from a weighted sum of the changes in the sensors of the sensor matrix (1) and from the position changes of the at least one center of gravity.

5. The method as recited in one of the preceding claims, wherein a holding function is applied to the dynamic factor.

6. A device for implementing the method as recited in one of the claims 1 through 5, wherein the device includes a sensor matrix (1) in a seat mat in a vehicle seat, an analog-digital converter (6) for digitizing sensor values, a memory (7) for buffer-storing data, and a processor (5) for calculating the dynamic factor.