Global Patent Index - EP 0968564 A1

EP 0968564 A1 2000-01-05 - A VOLTAGE REGULATOR FOR ALTERNATORS, PARTICULARLY FOR MOTOR VEHICLES

Title (en)

A VOLTAGE REGULATOR FOR ALTERNATORS, PARTICULARLY FOR MOTOR VEHICLES

Title (de)

SPANNUNGSREGLER FÜR DREHSTROMGENERATOREN, INSBESONDERE FÜR FAHRZEUGEN

Title (fr)

REGULATEUR DE TENSION POUR DES ALTERNATEURS, EN PARTICULIER, POUR DES VEHICULES A MOTEUR

Publication

EP 0968564 A1 (EN)

Application

EP 98916957 A

Priority

  • EP 9801509 W
  • IT TO970225 A

Abstract (en)

[origin: WO9842069A1] The voltage regulator (VR) comprises an electronic control unit (ECU) connected to a circuit (11) for detecting a controlled voltage and to a circuit (12) for driving the field winding (3) of the alternator (2). The unit (ECU) is arranged to calculate successive values (E(n)) of an error quantity (E) representative of the difference between a target value (XREF) of the controlled voltage and the instantaneous value (X) of this voltage and to calculate successive values of a control quantity (Y) corresponding to the intensity of the current to be caused to flow in the field winding (3) in dependence on preceding values (Y(n-1); Y(n-2)), of this control quantity (Y) and on the instantaneous and preceding values (E(n), E(n-1)) of the error quantity (E). The current flowing in the field winding (3) of the alternator (2) is controlled in dependence on the values of the error quantity (E) or of the increments of the control quantity (Y).

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

H02P 9/10; H02J 7/14; H02J 7/24; H02P 9/30

IPC 8 full level (invention and additional information)

H02J 7/14 (2006.01); H02J 7/24 (2006.01); H02P 9/10 (2006.01); H02P 9/30 (2006.01)

CPC (invention and additional information)

H02J 7/1446 (2013.01); H02J 7/245 (2013.01); H02P 9/10 (2013.01); H02P 9/305 (2013.01); Y02T 10/92 (2013.01)

Citation (search report)

See references of WO 9842069A1

Designated contracting state (EPC)

DE ES FR GB SE

EPO simple patent family

WO 9842069 A1 19980924; BR 9815460 A 20001205; CN 1085437 C 20020522; CN 1257618 A 20000621; EP 0968564 A1 20000105; IT 1291207 B1 19981229; IT TO970225 A1 19980918; PL 335544 A1 20000425; TR 9902256 T2 20000121

INPADOC legal status


2004-02-18 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030815

2003-05-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030404

2002-08-14 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: MAGNETI MARELLI SISTEMI ELETTRONICI S.P.A.

2000-01-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991014

2000-01-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB SE