EP 0893582 A3 20000105 - Method for controlling a coolant pump of an internal combustion engine

Title (en)

Method for controlling a coolant pump of an internal combustion engine

Title (de)

Verfahren zur Steuerung einer Kühlmittelpumpe einer Brennkraftmaschine

Title (fr)

Procédé de commande d' une pompe de refroidissement d' un moteur à combustion interne

Publication

EP 0893582 A3 20000105 (DE)

Application

EP 98890207 A 19980716

Priority

AT 125197 A 19970723

Abstract (en)

[origin: AT502321B1] The method involves controlling a coolant pump of a combustion engine, whereby a heat quantity to be conducted is determined from at least one motor operating parameter, and a pulse width modulation of a control signal for a nominal number of revolutions of the coolant pump is produced in dependence on the heat quantity. The signal is examined for errors through comparisons with a predefined nominal signal range. If an error of the signal is determined, an emergency program for the coolant pump is performed, otherwise the number of revolutions of the coolant pump is regulated in response to the produced signal.

IPC 1-7

F01P 5/14; F01P 7/16

IPC 8 full level

F01P 5/14 (2006.01); F01P 7/16 (2006.01); F04D 15/00 (2006.01)

CPC (source: EP US)

F01P 5/14 (2013.01 - EP US); F01P 7/164 (2013.01 - EP US); F04D 15/0066 (2013.01 - EP US); F04D 15/0077 (2013.01 - EP US); F01P 2031/36 (2013.01 - EP US)

Citation (search report)

[XA] DE 3702947 A1 19880811 - BEHR THOMSON DEHNSTOFFREGLER [DE]
[AD] US 4836147 A 19890606 - MORRIS PETER T [US]
[AD] US 5529114 A 19960625 - HALL WILLIAM B [US], et al
[A] EP 0771065 A1 19970502 - KSB AG [DE]
[A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 257 (M - 513) 3 September 1986 (1986-09-03)
[A] PATENT ABSTRACTS OF JAPAN vol. 007, no. 044 (M - 195) 22 February 1983 (1983-02-22)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0893582 A2 19990127; EP 0893582 A3 20000105; EP 0893582 B1 20021030; AT 502321 A1 20070215; AT 502321 A8 20070815; AT 502321 B1 20070615; AT 502321 B8 20070815; AT E227001 T1 20021115; DE 59806097 D1 20021205; ES 2183316 T3 20030316; US 6216645 B1 20010417

DOCDB simple family (application)

EP 98890207 A 19980716; AT 80192006 A 19980716; AT 98890207 T 19980716; DE 59806097 T 19980716; ES 98890207 T 19980716; US 42931899 A 19991028