(19)
(11) EP 1 816 253 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.09.2007 Bulletin 2007/36

(43) Date of publication A2:
08.08.2007 Bulletin 2007/32

(21) Application number: 06100754.8

(22) Date of filing: 24.01.2006
(51) International Patent Classification (IPC): 
D06F 58/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(71) Applicant: WHIRLPOOL CORPORATION
Benton Harbor Michigan 49022 (US)

(72) Inventors:
  • Pastore, Cristiano
    V.le G. Borghi 27 21025 Comerio (IT)
  • Jatta, Francesco
    V.le G. Borghi 27 21025 Comerio (IT)
  • Haselmeier, Ralf
    V.le G. Borghi 27 21025 Comerio (IT)
  • Lorenz, Thomas
    V.le G. Borghi 27 21025 Comerio (IT)
  • Papi, Gabriele
    V.le G. Borghi 27 21025 Comerio (IT)
  • Petrigliano, Rocco
    V.le G. Borghi 27 21025 Comerio (IT)

(74) Representative: Guerci, Alessandro 
Whirlpool Europe S.r.l. Patent Department Viale G. Borghi 27
21025 Comerio (VA)
21025 Comerio (VA) (IT)

   


(54) A method and a device for detecting failure of the drum drive system of a tumble clothes dryer


(57) A method for monitoring failure of a drum rotation system of a clothes dryer comprises acquiring a conductivity signal from the conductivity sensor of the dryer, and processing said signal in the frequency domain in order to retain a frequency spectra of the clothes tumbling process while rejecting the frequency spectra of noises and/or the like.







Search report