Method for adapting sensor cells of a seat mat to a mechanical prestress

• US 6,928,347 B2
• Filed: 06/12/2002
• Issued: 08/09/2005
• Est. Priority Date: 06/27/2001
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Mack, Frank, Marchthaler, Reiner, Lich, Thomas, Wolf, Rene, Giesel, Ruediger
• Primary Examiner(s): Zanelli, Michael J.
• Application Number:
  US10/470,029
• Publication Number:
  US 20040117141A1
• Time in Patent Office: 1,154 Days
• Field of Search: 701/29, 701/33, 701/34, 701/45
• US Class Current: 701/33
• 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 2021/01184 Fault detection or diagnostic circuits in power circuits B60R2021/01129
• CPC Class Codes: B60R 21/01516 using force or pressure sensing means

Abstract

A method for adjusting the sensor cells of a seat mat to a mechanical stress caused by the installation of the seat mat in a vehicle seat, a diagnostic tester being connected to a control unit at the seat mat, and the diagnostic tester reads out the sensor values of the seat mat and compares them to setpoint values, in order then to transmit back correcting values to the control unit, which the control unit uses in further operation for calibrating the sensor values.

Claims

1. A method to adjust sensor cells of a seat mat to a mechanical stress caused by installing the seat mat in a vehicle seat, a diagnostic tester being connected to a control unit for the seat mat, the method comprising:

reading out sensor values of the sensor cells by the diagnostic tester via the control unit;

comparing the sensor values with setpoint values by the diagnostic tester;

determining correcting values as a function of the comparing; and

transmitting the correcting values for the sensor values to the control unit to adjust the sensor cells.

2. The method of claim 1, wherein the correcting values are stored in a memory of the control unit.

3. The method of claim 1, further comprising:

performing a password interrogation by the control unit to the diagnostic tester before transmitting the sensor values from the control unit to the diagnostic tester.

4. The method of claim 1, wherein the diagnostic tester includes a data transmission interface to connect to the control unit, a memory for the setpoint values and a password, and a processor to perform the comparing between the setpoint values and the sensor values.

5. The method of claim 1, wherein the control unit includes a data transmission interface to connect to the diagnostic tester, another data transmission interface to connect to the seat mat, a processor to evaluate the sensor values and a memory to accommodate the correcting values.