Abstract: A tumble dryer has a drum for laundry, a drive motor for the drum, an air supply to the drum and an air discharge from the drum, a fan, including a fan drive, for generating an air stream to the drum through the air supply and away from the drum through the air discharge, and also heating means for heating the air stream. The temperature of and the moisture in the air which is discharged from the drum are detected. The profile of said temperature and moisture is compared with prespecification curves, which are stored in a memory, for the profile of said temperature and moisture by means of calculation means depending on the drying phase of the laundry. The operating point of the prespecification curve at which the drying program is located is determined in this way. The control arrangement influences the further drying program, on the basis of the operating point, by way of adjusting the temperature and/or the intensity of the air stream.

Abstract: A tumble dryer has a drum for laundry, a drive motor for the drum, an air supply to the drum and an air discharge from the drum, a fan, including a fan drive, for generating an air stream to the drum through the air supply and away from the drum through the air discharge, and also heating means for heating the air stream. The temperature of and the moisture in the air which is discharged from the drum are detected. The profile of said temperature and moisture is compared with prespecification curves, which are stored in a memory, for the profile of said temperature and moisture by means of calculation means depending on the drying phase of the laundry. The operating point of the prespecification curve at which the drying program is located is determined in this way. The control arrangement influences the further drying program, on the basis of the operating point, by way of adjusting the temperature and/or the intensity of the air stream.

Abstract: In a method for operating a tumble dryer for drying damp laundry, the profile of the moisture of the air in the tumble dryer, advantageously the absolute moisture, is measured during an initial phase of the drying process. The profile of the measured moisture is then compared with stored profiles for the moisture or a gradient of the profile of the measured moisture is compared with stored gradient threshold values for gradient values of the moisture. In this case, profiles and/or gradient threshold values for fibers from the following group: cotton, wool and synthetic fibers, and also an upper gradient threshold value and a lower gradient threshold value are stored.

Abstract: In a method for operating a tumble dryer for drying damp laundry, the profile of the moisture of the air in the tumble dryer, advantageously the absolute moisture, is measured during an initial phase of the drying process. The profile of the measured moisture is then compared with stored profiles for the moisture or a gradient of the profile of the measured moisture is compared with stored gradient threshold values for gradient values of the moisture. In this case, profiles and/or gradient threshold values for fibres from the following group: cotton, wool and synthetic fibres, and also an upper gradient threshold value and a lower gradient threshold value are stored.