METHOD FOR CONTROLLING A COOLING SYSTEM, COOLING SYSTEM, CONTROL UNIT, AND COMPUTER PROGRAM PRODUCT

The disclosure relates to a method for controlling a cooling system of a first electrical machine within a drive train of a motor vehicle. The cooling system includes: i) a first closed coolant circuit having a first cooling fluid and a first fluid pump for conveying the first cooling fluid through the first coolant circuit and for cooling at least the first electrical machine, and ii) a control unit which is connected to the first fluid pump in order to control the pump speed.