Global Patent Index - EP 1074447 A1

EP 1074447 A1 2001-02-07 - Method for monitoring the differences of frictional forces and/or moments between at least two elements

Title (en)

Method for monitoring the differences of frictional forces and/or moments between at least two elements

Title (de)

Verfahren zur Überwachung von Reibkraftdifferenzen und/oder Reibmomentdifferenzen zwischen wenigstens zwei Teilen

Title (fr)

Procédé pour surveiller les différences des forces et/ou moments de frottement entre au moins deux éléments

Publication

EP 1074447 A1 (DE)

Application

EP 00116415 A

Priority

DE 19936367 A

Abstract (en)

The method involves detecting the entry into a static phase from the relative speed; detecting at least one control force and/or torque (M1,M2) value; detecting the exit from the static phase whereby the direction is reversed wrt. before the phase; measuring the force and/or torque; comparing a difference force and/or torque (deltaM1, deltaM2) value for the static phase with a limit value; and performing a specified action if the limit is exceeded.

Abstract (de)

Bei dem erfindungsgemäßen Verfahren wird aus der Relativgeschwindigkeit der zueinander beweglichen Teile der Eintritt in wenigstens eine Stillstandsphase ermittelt und dabei wenigstens ein Wert einer Stellkraft und/oder wenigstens ein Wert eines Stellmomentes (M(t)) erfaßt sowie der nachfolgende Austritt aus dieser Stillstandsphase, bei dem eine Umkehr der Bewegungsrichtung gegenüber dem vorangegangenen Eintritt vorliegt, ermittelt und dabei wenigstens ein Wert der Stellkraft und/oder wenigstens ein Wert des Stellmomentes (M(t)) erfaßt, weiterhin wird aus den erfaßten, einer Stillstandsphase zugehörigen Werten der Stellkraft und/oder des Stellmomentes (M(t)) wenigstens eine Reibkraftdifferenz und/oder wenigstens eine Reibmomentdifferenz (M) ermittelt und mit wenigstens einem Differenzgrenzwert (Minit) verglichen, wobei bei Überschreiten wenigstens eines Differenzgrenzwertes (Minit) eine vorgebbare Maßnahme durchgeführt wird. <IMAGE>

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

B61F 5/22

IPC 8 full level (invention and additional information)

B61F 5/22 (2006.01)

CPC (invention and additional information)

B61F 5/22 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT CH DE FR IT LI

EPO simple patent family

EP 1074447 A1 20010207; EP 1074447 B1 20040324; AT 262437 T 20040415; DE 19936367 A1 20010315; DE 19936367 C2 20010823

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