EP 0983518 A1 20000308 - METHOD FOR COMPENSATING VARIATIONS IN A WHEEL SPEED SENSOR
Title (en)
METHOD FOR COMPENSATING VARIATIONS IN A WHEEL SPEED SENSOR
Title (de)
VERFAHREN ZUM AUSGLEICH VON ABWEICHUNGEN EINES RADDREHZAHLSENSORS
Title (fr)
PROCEDE POUR COMPENSER LES ECARTS D'UN CAPTEUR DE VITESSE
Publication
Application
Priority
- DE 19721488 A 19970523
- EP 9802303 W 19980418
Abstract (en)
[origin: DE19721488A1] The invention relates to a method for compensating inaccuracies in a wheel speed sensor, wherein signal-forming elements are arranged on a sensor wheel to determine wheel speed and wherein a determined angle is allocated to a given number of signal-forming elements to determine wheel speed. The time during which the wheel rotates around said angle is evaluated. A correction factor, which is used to determine wheel speed, is stored to compensate for variations in the signal-forming elements and/or the positioning of the elements in relation to each other. During travel, the correction factors are updated by comparing the non-corrected wheel speed measured by the sensor with a wheel speed reference value determined by means of a computational model, wherein the correction factor is updated according to said comparison.
IPC 1-7
IPC 8 full level
G01P 3/42 (2006.01); G01D 3/02 (2006.01); G01P 3/481 (2006.01); G01P 11/00 (2006.01); G01P 21/02 (2006.01)
CPC (source: EP US)
G01P 3/489 (2013.01 - EP US)
Citation (search report)
See references of WO 9853329A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19721488 A1 19981126; EP 0983518 A1 20000308; JP 2002500760 A 20020108; US 6446018 B1 20020903; WO 9853329 A1 19981126
DOCDB simple family (application)
DE 19721488 A 19970523; EP 9802303 W 19980418; EP 98922742 A 19980418; JP 54985298 A 19980418; US 42431000 A 20000512