EP 0977997 A2 20000209 - METHOD FOR DETECTING THE DIRECTION OF ROTATION OF A WHEEL BY MEANS OF HALL PROBES
Title (en)
METHOD FOR DETECTING THE DIRECTION OF ROTATION OF A WHEEL BY MEANS OF HALL PROBES
Title (de)
VERFAHREN ZUR ERKENNUNG DER DREHRICHTUNG EINES RADES MITTELS HALL-SONDEN
Title (fr)
PROCEDE POUR DETECTER LE SENS DE ROTATION D'UNE ROUE AU MOYEN DE SONDES DE HALL
Publication
Application
Priority
- DE 9801140 W 19980423
- DE 19717364 A 19970424
Abstract (en)
[origin: DE19717364C1] The method the use of Hall effect probes arranged in the peripheral direction of the wheel (1). They are arranged so that the second probe (15) is positioned centrally between the first (14) and the third (16) probes providing output signals (S1,S2,S3) respectively. Two evaluation signals are derived from the three output signals, the first (A) by subtracting output signal (S3) from (S1) and the second (B) by adding (S1) and (S3) from the sum of which double the value of (S2) is subtracted. One of the evaluation signals (A,B) is sampled passing through zero and the sign of the other checked. With reference to the sampled signal each sign is assigned a direction of rotation
IPC 1-7
IPC 8 full level
G01D 5/14 (2006.01); G01D 5/245 (2006.01); G01P 13/04 (2006.01)
CPC (source: EP KR)
G01D 5/147 (2013.01 - EP); G01D 5/2451 (2013.01 - EP); G01P 13/04 (2013.01 - KR); G01P 13/045 (2013.01 - EP)
Citation (search report)
See references of WO 9848284A2
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DE 19717364 C1 19980827; CA 2287182 A1 19981029; CN 1260879 A 20000719; EP 0977997 A2 20000209; JP 2001521630 A 20011106; KR 20010020194 A 20010315; WO 9848284 A2 19981029; WO 9848284 A3 19990128
DOCDB simple family (application)
DE 19717364 A 19970424; CA 2287182 A 19980423; CN 98804477 A 19980423; DE 9801140 W 19980423; EP 98931990 A 19980423; JP 54474098 A 19980423; KR 19997009771 A 19991022