Global Patent Index - EP 1452701 B1

EP 1452701 B1 2009-02-18 - Method and device of oil temperature evaluation of a combustion engine

Title (en)

Method and device of oil temperature evaluation of a combustion engine

Title (de)

Verfahren und Vorrichtung zur Berechnung der Öltemperatur einer Brennkraftmaschine

Title (fr)

Procédé et système d'évaluation de la température de l'huile d'un moteur à combustion

Publication

EP 1452701 B1 (FR)

Application

EP 04300088 A

Priority

FR 0302379 A

Abstract (en)

[origin: EP1452701A1] The method involves calculating a predicted temperature of a coolant by a primary algorithm (A1), based on functioning parameters of an engine. An error between measured and predicted temperatures of the coolant is calculated. A predicted oil temperature is calculated by a secondary algorithm (A2), based on functioning parameters of the engine. The predicted oil temperature is corrected based on the calculated error. An independent claim is also included for a system to estimate oil temperature of an internal combustion engine.

IPC 8 full level (invention and additional information)

F01M 5/00 (2006.01); F01M 11/10 (2006.01)

CPC (invention and additional information)

F01M 11/10 (2013.01); F01M 5/005 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

EPO simple patent family

EP 1452701 A1 20040901; EP 1452701 B1 20090218; AT 423269 T 20090315; DE 602004019464 D1 20090402; ES 2320548 T3 20090525; FR 2851784 A1 20040903; FR 2851784 B1 20050527

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