Method and device for controlling the operating temperature of a hydraulic operating medium of a drive unit of a vehicle

摘要

In a method for controlling the operating temperature of a hydraulic operating medium for a drive unit of a vehicle in a selected range, the operating temperature is controlled by controlling the volume flow of the operating medium for a heat exchange between the operating medium and a secondary heat transfer medium flow medium to a predetermined desired value as a function of the actual value of the operating temperature and as a function of at least one other vehicle parameter, by which a certain temperature influencing effect on the operating medium can be provided. The selected range of the operating temperature includes both the temperature values occurring in the warm-up phase of the drive unit and temperature values, which are substantially higher than the desired value.