As-needed filter cleaning

Abstract

A method for controlling filter cleaning in a vacuuming device, the vacuuming device including at least one filter that is cleaned regularly and the filter cleaning including cleaning operations with individual cleaning pulses. An intensity of the cleaning operations can be set in dependence on a state of the filter of the vacuuming device for example by a variable length of time of a cleaning pulse and/or a variable number of cleaning pulses per cleaning operation. The method makes filter cleaning possible, in which the state of contamination or the aging of the filter in the vacuuming device can be taken into account. In a second aspect, the invention relates to a vacuuming device with which the proposed method can be carried out. For this purpose, the vacuuming device may for example comprise a suitable sensor system for detecting the state of the filter, and a control device.

What is claimed is: 
     
         1 - 13 . (canceled) 
     
     
         14 : A method for controlling filter cleaning in a vacuuming device, the vacuuming device including at least one filter cleaned regularly by cleaning operations, the method comprising:
 setting an intensity of the cleaning operations in dependence on a state of the filter of the vacuuming device.   
     
     
         15 : The method as recited in  claim 14  wherein the intensity is set by setting lengths of time of cleaning pulses of the cleaning operations. 
     
     
         16 : The method as recited in  claim 15  wherein the lengths of time are set by varying a valve opening time. 
     
     
         17 : The method as recited in  claim 16  wherein the valve opening time is varied using a control device. 
     
     
         18 : The method as recited in  claim 15  wherein the lengths of time of the cleaning pulses are in a range from 1 to 500 ms. 
     
     
         19 : The method as recited in  claim 18  wherein the range is from 30 to 500 ms. 
     
     
         20 : The method as recited in  claim 18  wherein the range is from 40 to 100 ms. 
     
     
         21 : The method as recited in  claim 14  wherein the intensity is set by setting a number n of cleaning pulses per cleaning operation. 
     
     
         22 : The method as recited in  claim 21  wherein the number n is in a range from 1 to 7. 
     
     
         23 : The method as recited in  claim 21  wherein the number n is in a range from 2 to 5. 
     
     
         24 : The method as recited in  claim 21  wherein the number n is 3. 
     
     
         25 : The method as recited in  claim 21  wherein the number n of cleaning pulses per cleaning operation is set in dependence on progress of the filter cleaning. 
     
     
         26 : The method as recited in  claim 14  wherein the intensity of the cleaning operations is influenced by a settable cross section of a valve opening. 
     
     
         27 : The method as recited in  claim 14  wherein the intensity is influenced by setting a valve acceleration or valve damping. 
     
     
         27 : A vacuuming device performing the filter cleaning as recited in  claim 14 . 
     
     
         28 : The vacuuming device as recited in  claim 27  comprising a sensor for detecting the state of the filter. 
     
     
         29 : The vacuuming device as recited in  claim 27  comprising a controller for adapting a length of time or a number n of cleaning pulses per cleaning operation in dependence on the state of the filter.