Patent ID: 8408169

Claim:
A method for controlling cooling by adjusting an air flow configuration of a motor vehicle cooling fan, wherein the vehicle includes an engine, a charge air cooler for the engine, intake air, at least one cooling device for the engine, and the motor vehicle cooling fan which is for the cooler for charge air for the engine and for the at least one cooling device; the method comprising: generating an air flow by the fan past the at least one cooling device and the cooler for charge air for the engine, determining an air flow configuration by the fan's degree of protrusion from a fan ring which extends in air flow communication with a fan cowling, the fan ring and the cowling extending in a circumferential direction around the fan, and optimizing the air flow configuration by selecting, by a control device, a degree of protrusion of the fan from the fan ring by relocating a movable portion of the fan ring in the axial direction of the fan.