Global Patent Index - EP 0750105 B1

EP 0750105 B1 2000-04-19 - A method of and an apparatus for calibrating a rotary position transducer

Title (en)

A method of and an apparatus for calibrating a rotary position transducer

Title (de)

Verfahren und Vorrichtung zum Kalibrieren eines Drehgebers

Title (fr)

Méthode et appareil d'étalonnage d'un capteur de position rotatif

Publication

EP 0750105 B1 (EN)

Application

EP 96303794 A

Priority

GB 9512652 A

Abstract (en)

[origin: EP0750105A1] A rotary position transducer comprises a rotary element such as a wheel (1) having a plurality of markers such as teeth (3, 4, 5, 6). A sensor (2), for instance of the variable reluctance type, produces a position signal when each marker (3, 4, 5, 6) passes. In order to calibrate the transducer, the rotary element (1) is rotated with substantially constant deceleration. First time periods between consecutive position signals are measured for a first revolution of the rotary element (1). Second time periods between consecutive position signals are measured for a second revolution subsequent to the first. Corrected angular spacings are then determined from the first and second time periods. <IMAGE>

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

F02D 41/34

IPC 8 full level (invention and additional information)

F02D 41/34 (2006.01)

CPC (invention and additional information)

F02D 41/009 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 0750105 A1 19961227; EP 0750105 B1 20000419; DE 69607788 D1 20000525; DE 69607788 T2 20001116; GB 9512652 D0 19950823

INPADOC legal status


2016-07-29 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

- Effective date: 20160527

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- Expiry date: 20160527

2016-05-28 [REG DE R071] EXPIRY OF RIGHT

- Document: DE 69607788

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2005-11-04 [REG FR TP] TRANSMISSION OF PROPERTY

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-04-04 [26N] NO OPPOSITION FILED

2000-07-28 [ET] FR: TRANSLATION FILED

2000-05-30 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: BUGNION S.P.A.

2000-05-25 [REF] CORRESPONDS TO:

- Document: DE 69607788 20000525

2000-04-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

1999-04-07 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990219

1997-07-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19970513

1996-12-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT