Method for determining an oil change point in time for engine oil when operating an internal combustion engine

摘要

The invention relates to a method for determining an oil change point in time for engine oil during operation of an internal combustion engine, comprising at least the following steps: a) Supplying at least one oil consumer of the internal combustion engine with engine oil by giving the at least one oil consumer an engine oil quantity of the engine oil via an oil pressure regulating valve of the internal combustion engine at a predetermined Oil pressure is supplied and a portion of the engine oil is controlled using the oil pressure regulating valve; b) determining the engine oil aging as a function of the oil viscosity of the engine oil, as well as as a function of a signal change of a control signal which depends on a change in the oil viscosity caused by the engine oil aging and on the basis of which the Oil pressure regulating valve is controlled for setting the shutdown of the partial amount, and depending on at least one, a state of the engine oil during operation of the internal combustion engine ch aracterizing engine oil parameter; c) outputting a warning that characterizes the time of the oil change if the engine oil aging reaches a predetermined threshold value.