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1. (WO2010072391) METHOD AND DEVICE OF A POSITION ENCODER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/072391 International Application No.: PCT/EP2009/009181
Publication Date: 01.07.2010 International Filing Date: 21.12.2009
IPC:
G01D 3/02 (2006.01) ,G01D 5/249 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
3
Measuring arrangements with provision for the special purposes referred to in the subgroups of this group
02
with provision for altering or correcting the transfer function
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12
using electric or magnetic means
244
influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
249
using pulse code
Applicants:
AB SKF [SE/SE]; Hornsgatan 1 S-41550 Göteborg, SE (AllExceptUS)
DOORNENBAL, Jan, Jansen [NL/NL]; NL (UsOnly)
Inventors:
DOORNENBAL, Jan, Jansen; NL
Agent:
BURÖ, Sven, Peter; SKF BV P.O. Box 2350 NL-3430 DT Nieuwegein, NL
Priority Data:
PCT/EP2008/01108123.12.2008EP
Title (EN) METHOD AND DEVICE OF A POSITION ENCODER
(FR) PROCÉDÉ ET DISPOSITIF DE CODEUR DE POSITION
Abstract:
(EN) A device and a method of aligning a full or partial turn absolute rotary position encoder (310) with a predetermined desired rotary position of an axle (302). A trigger (335) is generated when the axle is in a predetermined triggering rotary position. The trigger initiates acquiring a position signal (315) from the absolute rotary position encoder (310). This acquired position signal is a base for determining a correction factor (355). The correction factor is then used to transform subsequent position signals (315) from the absolute rotary position encoder (310) into aligned position signals (365). The aligned position signals are equivalent to position signals the absolute rotary position encoder (310) would have generated had the absolute rotary position encoder been physically aligned with the predetermined desired rotational position on the motor axle (302).
(FR) La présente invention concerne un dispositif et un procédé d'alignement d'un codeur de position rotatif absolu (310) tournant entièrement ou en partie avec une position de rotation prédéterminée souhaitée d'un essieu (302). Une gâchette (335) est enclenchée lorsque l'essieu est dans une position de déclenchement de rotation prédéterminée. La gâchette lance l'acquisition d'un signal de position (315) provenant du codeur de position rotatif absolu (310). Ce signal de position acquis sert de base pour déterminer un facteur de correction (355). Le facteur de correction est ensuite utilisé pour transformer les signaux de position suivants (315) du codeur de position rotatif absolu (310) en signaux de position alignée (365). Les signaux de position alignée sont équivalents aux signaux de position que le codeur de position rotatif absolu (310) aurait émis si le codeur de position de rotation absolue avait été physiquement aligné avec la position de rotation prédéterminée souhaitée sur l'essieu moteur (302).
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)