Global Patent Index - EP 1487649 A1

EP 1487649 A1 2004-12-22 - SYSTEM FOR MONITORING THE STATE OF A TYRE

Title (en)

SYSTEM FOR MONITORING THE STATE OF A TYRE

Title (de)

SYSTEM ZUR BERWACHUNG DER REIFENZUSTANDS

Title (fr)

SYSTEME DE SURVEILLANCE DE L'ETAT D'UN PNEUMATIQUE

Publication

EP 1487649 A1 (DE)

Application

EP 03744309 A

Priority

  • DE 0300797 W
  • DE 10211697 A
  • DE 10303492 A

Abstract (en)

[origin: WO03078182A1] The invention relates to a method and a device for monitoring the state of a tyre on the driven wheels of a motor vehicle. The rotational movement of the driven wheels are recorded for the monitoring and parameters generated which are dependent on the recorded rotational movements. The generated parameters are further linked to each other. The monitoring is then carried out depending on the result of the linking. The invention is characterized in that the monitoring further includes the drive torque acting on the driven wheels and is based on the fact that for different kinds of tyres the rolling circumference changes dramatically depending on the drive torque and a change in rolling circumference due to pressure loss can thus be compensated for and hence not recognised. According to the invention, where the influence of the drive torque is compensated for during the pressure loss recognition then a pressure loss can be reliably recognised in such cases without erroneous signals.

IPC 1-7 (main, further and additional classification)

B60C 23/06

IPC 8 full level (invention and additional information)

G01P 3/42 (2006.01); B60C 19/00 (2006.01); B60C 23/02 (2006.01); B60C 23/06 (2006.01)

CPC (invention and additional information)

B60C 23/061 (2013.01)

Citation (search report)

See references of WO 03078182A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

EPO simple patent family

WO 03078182 A1 20030925; EP 1487649 A1 20041222; JP 2005520726 A 20050714; US 2005268706 A1 20051208

INPADOC legal status


2008-01-09 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20070724

2007-04-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20070312

2004-12-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20041018

2004-12-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR