EP 0956433 A1 19991117 - METHOD FOR DETERMINING THE TIMES WHEN IT WILL BE NECESSARY TO CHANGE, OR ADD TO, THE ENGINE OIL IN A MOTOR VEHICLE ENGINE
Title (en)
METHOD FOR DETERMINING THE TIMES WHEN IT WILL BE NECESSARY TO CHANGE, OR ADD TO, THE ENGINE OIL IN A MOTOR VEHICLE ENGINE
Title (de)
VERFAHREN ZUR ERMITTLUNG VON MOTORÖLWARTUNGSZEITPUNKTEN FÜR EINEN KRAFTFAHRZEUGMOTOR
Title (fr)
PROCEDE DE DETERMINATION DES MOMENTS OU IL EST NECESSAIRE DE CHANGER L'HUILE MOTEUR OU D'EN AJOUTER
Publication
Application
Priority
- DE 19654450 A 19961227
- EP 9707040 W 19971215
Abstract (en)
[origin: DE19654450A1] The invention relates to a method for determining the times when it will be necessary to change, or add to, the engine oil in a motor vehicle engine, in relation to detected engine operating parameters. According to the invention, at least one engine operating parameter relevant to the ageing of engine oil and the number of engine r.p.m. are determined on a continuous basis. On the basis of the values obtained, an imaginary distance is calculated by evaluative combination of the number of engine r.p.m. detected with evaluation factors dependent on the detected engine operating parameter(s) relevant to the ageing of engine oil, in accordance with a predefinable combination relation. From this imaginary distance, the distance still to be driven until it is next necessary to change, or add to, the engine oil is calculated by subtracting the imaginary distance from a predefined total potential distance.
IPC 1-7
IPC 8 full level
F01M 11/10 (2006.01)
CPC (source: EP US)
F01M 11/10 (2013.01 - EP US); F01M 2011/14 (2013.01 - EP US); F01M 2011/1426 (2013.01 - EP US)
Citation (search report)
See references of WO 9829642A1
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
DE 19654450 A1 19980702; DE 59710099 D1 20030618; EP 0956433 A1 19991117; EP 0956433 B1 20030514; JP 2000508404 A 20000704; JP 3493583 B2 20040203; US 6266587 B1 20010724; WO 9829642 A1 19980709
DOCDB simple family (application)
DE 19654450 A 19961227; DE 59710099 T 19971215; EP 9707040 W 19971215; EP 97954404 A 19971215; JP 52957698 A 19971215; US 31953899 A 19990608