System and method for increasing the operating efficiency current waveform profile has a drive train by means of controlling an air guide closure

摘要

A method for increasing the operating efficiency current waveform profile has a drive train, that a radiator grill opening in an unrestricted state, in that in the case of a first predetermined vehicle speed or below the same a closure is completely opened and a fan is switched off. The method comprises in addition, that the radiator grill opening in an unrestricted state, in that above the first predetermined vehicle speed and in the case of a second predetermined vehicle speed or below this in the case of a high drive train - cooling load of the closure is completely opened and the fan is switched on. The method additionally comprises that, above the second predetermined vehicle speed the radiator grill opening, by way of an intermediate position of the closure device in a partially limited state and the fan is switched off. By means of a specific size of the fan, in conjunction with the selected positions for the closure in the case of the respective vehicle speeds, a sufficient air flow through the radiator grill opening is provided, in order to cool the drive train, and is an increased operating efficiency current waveform profile of the drive train is created. A system for the increase in the operating efficiency current waveform profile has a drive train as well as a corresponding vehicle are likewise provided.