Method for Filtering Data in a Tire Pressure Monitoring System for a Vehicle

• US 20140327535A1
• Filed: 09/12/2012
• Published: 11/06/2014
• Est. Priority Date: 09/12/2011
• Status: Active Grant

• Current Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Original Assignee: Continental Teves AG & Co. OHG (Continental AG)
• Inventors: Gnthner, Stefan, Rink, Klaus, Sthlin, Ulrich, Schmid, Bernhard
• Granted Patent: US 9,272,585 B2
• Time in Patent Office: Days
• US Class Current: 340/442
• CPC Class Codes: B60C 23/02 Signalling devices actuated by tyre pressure hand-held tyre pressure gauges G01L17/00
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0474 Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
• CPC Class Codes: B60C 23/061 by monitoring wheel speed measuring distance traversed on the ground by vehicles G01C22/00
• CPC Class Codes: G01C 21/12 executed aboard the object being navigated; Dead reckoning

Abstract

A method for filtering data in a tire pressure monitoring system for a vehicle includes the steps of: recording a variable that is dependent on the tire radius for a wheel of the vehicle, and filtering the variable that is dependent on the tire radius on the basis of driving dynamics data and/or a global navigation satellite system signal, called GNSS signal below. A vehicle control system and a vehicle having the control system are also described.

Claims

1. A method for filtering data in a tire pressure monitoring system for a vehicle (2), comprising the steps of:

recording (10, 22, 26, 28) a variable that is dependent on the tire radius for a wheel (6) of the vehicle (2), and

filtering (30) the variable that is dependent on the tire radius on the basis of at least one of driving dynamics data and a global navigation satellite system signal, called GNSS signal below.

2. The method as claimed in claim 1, further comprising wherein the variable that is dependent on the tire radius is recorded on the basis of an item of pressure information (10) recorded by a pressure sensor fastened to the wheel of the vehicle (2).

3. The method as claimed in claim 2, further comprising wherein the pressure information (10) is converted into a longitudinal speed of the vehicle (2) using a wheel speed (28) of the wheel (6).

4. The method as claimed in claim 1 further comprising wherein providing the vehicle (2) with at least two wheels (6) and the variable that is dependent on the tire radius is calculated on the basis of wheel speeds (28) of the two wheels (6) and a vehicle longitudinal speed.

5. The method as claimed in claim 4 further comprising the step of:

recording the vehicle longitudinal speed on the basis of inertial sensor data.

6. The method as claimed in claim 4 further comprising the steps of:

detecting a position of the vehicle from the global navigation satellite system signal, and

recording the vehicle longitudinal speed on the basis of the detected position of the vehicle.

7. The method as claimed in claim 4 further comprising the step of:

recording the vehicle longitudinal speed on the basis of a carrier frequency of the global navigation positioning satellite system signal.

8. A control apparatus (4) which is configured to carry out a method of recording (10, 22, 26, 28) a variable that is dependent on the tire radius for a wheel (6) of the vehicle (2), and filtering (30) the variable that is dependent on the tire radius on the basis of at least one of driving dynamics data and a global navigation satellite system signal.

10. A vehicle (2) comprising a control apparatus (4) as claimed in claim 8.

9. A computer program product comprising a program code which is stored on a computer-readable data storage medium and carries out a method when executed on a data processing device, the method including recording (10, 22, 26, 28) a variable that is dependent on the tire radius for a wheel (6) of the vehicle (2), and

filtering (30) the variable that is dependent on the tire radius on the basis of at least one of driving dynamics data and a global navigation satellite system signal.