The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2014
Filed:
Nov. 16, 2007
Alvaro Volpato, Guabirotuba, BR;
Jose Machado, Guabirotuba, BR;
Daniel Kaminski DE Souza, Guabirotuba, BR;
Marco Giovagnoni, Udine, UT (US);
Fabio Altinier, Codogne, IT;
Stefano Galassi, Ranzano, IT;
Alvaro Volpato, Guabirotuba, BR;
Jose Machado, Guabirotuba, BR;
Daniel Kaminski de Souza, Guabirotuba, BR;
Marco Giovagnoni, Udine, UT (US);
Fabio Altinier, Codogne, IT;
Stefano Galassi, Ranzano, IT;
Electrolux Home Products Corporation N.V., Brussels, BE;
Abstract
There is described a control system () for controlling unbalance of the wash assembly () in a vertical-rotation-axis washing machine (), wherein a wash assembly () is housed inside a casing (), and has a wash drum () rotating about an axis of rotation (R) substantially parallel to a vertical reference axis (V), and an electric drive unit () for rotating the wash drum () about the relative axis of rotation (R); said control system has first computing blocks () for determining a number of operating quantities (Cm(t), J, alpha (t)) associated with rotation of the wash drum (), and for determining, as a function of the quantities, the time pattern of the amplitude (h(t)) of vertical oscillation of the centre of mass (B) of the wash assembly () in a first direction substantially parallel to the vertical reference axis (V); and a second computing block () for determining the maximum amplitude (H) of vertical oscillation of the wash assembly () within a given time interval (T); the second computing block () also determines whether the maximum amplitude (H) of vertical oscillation satisfies a predetermined relationship with a predetermined threshold (SA), and determines a critical unbalanced condition of the wash assembly () when the predetermined relationship is satisfied.