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

DOCDB simple 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 199902256 T2 20000121