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(11) | EP 1 236 826 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | A method for changing the program cycle of a household dryer |
| (57) The invention relates to a method for changing the program cycle of a household dryer
while drying laundry, wherein the program can be changed and cancelled depending on
the moisture of the laundry and the elapsed time of the selected program, wherein
the laundry come into contact with moisture sensors during the drying process that
measure the contact frequency and moisture of the laundry and provide measured values
for changing the program, indicating the remaining drying time and canceling the initiated
program. If it is provided according to the invention that the moisture sensors are
attached to lateral grids provided between door and laundry drum at a level above
the lowest point of the laundry drum, that the moisture sensors determine the time
intervals between the individual contacts with predetermined minimum moisture and
that these time intervals are used to calculate statistical means, and that the changes
of the program parameters, the display of the remaining drying time and the shut-off
of the program are calculated based on the statistical means of the time intervals
determined in this way, then a method is obtained with simple sensor and circuit configuration
that uses the load volume of the laundry with sufficient accuracy to change the program
cycle and to derive the display of the remaining drying time. |