Cooling a control device of the gearbox of a motor vehicle

摘要

A method of adjusting an operating temperature of a control device (2) of a motor vehicle automatic transmission. The transmission control has a hydraulic unit (3) and an electronic unit (4) with electronic modules. The control device (3)is situated in a transmission housing which is partially filled with transmission oil and at least partly surrounded by transmission oil. The control device (2) has a cooling device (5) by which at least part of the electronic unit (4) is cooled with the transmission oil. The transmission oil has a temperature ThetaC which is lower than a prevailing transmission oil temperature ThetaG. The electronic unit (4) is impinged upon with a defined volume flow of the transmission oil.