Method for controlling a clearing process in a vacuum cleaning device, and vacuum cleaning device

A method for controlling a clearing process in a vacuum cleaning device, the vacuum cleaning device comprising at least one filter, the filter being cleared regularly, the method comprising:

• stipulating a first reference value for at least one filter clearing process, the first reference value being used to define a defined pressure range, a first differential pressure value for qualitatively acceptable filter clearing being in the defined pressure range so that the defined pressure range includes the first differential pressure value;
• operating the vacuum cleaning device and clearing the filter using the at least one filter clearing process with the first reference value as a target value for the clearing, and thereafter obtaining a current state differential pressure value describing a current state of the filter by forming a difference between pressure values detected in a flow of the vacuum cleaning device upstream and downstream of the filter;
• determining whether the current state differential pressure value is in the defined pressure range;
• and
• when the current state differential pressure is within the defined pressure range, operating the vacuum cleaning device and keeping the first reference value for at least one subsequent filter clearing process with the first reference value as the target value;
• and
• when the current state differential pressure is outside the defined pressure range, operating the vacuum cleaning device and stipulating a second reference value for at least one further subsequent filter clearing process to account for filter aging and performing the at least one further subsequent filter clearing process using the second reference value as a second target value.