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Title:
AIR MOVING ELECTRICAL APPLIANCE WITH ON-BOARD DIAGNOSTICS
Document Type and Number:
Japanese Patent JP2014211877
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a practical system for monitoring a fault condition of a vacuum cleaner, and more generally, of an air moving electrical appliance.SOLUTION: An air moving electrical appliance comprises an electric motor coupled to a fan, and a control system for controlling the motor. The control system includes: monitoring means configured to monitor a motor load parameter; memory means configured to store a predetermined reference motor load parameter value; compensating means that determines a compensated reference motor load parameter value on the basis of the predetermined reference motor load parameter value and a set of ambient environment input conditions; and comparison means configured to compare the motor load parameter and the compensated reference motor load parameter value and trigger an operational event on the basis of the result of the comparison. The invention also relates to a method of controlling the air moving electrical appliance.

Inventors:
RUSSELL SCOTT MURCHIE
VANDERSTEGEN-DRAKE MARK STAMFORD
Application Number:
JP2014087571A
Publication Date:
November 13, 2014
Filing Date:
April 21, 2014
Export Citation:
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Assignee:
DYSON TECHNOLOGY LTD
International Classes:
A47L9/28; G05D1/02
Domestic Patent References:
JP2000069787A2000-03-03
JP2001149728A2001-06-05
JPH03173521A1991-07-26
JP2000093370A2000-04-04
JP2010246386A2010-10-28
JP2003322380A2003-11-14
Attorney, Agent or Firm:
辻居 Koichi
Sadao Kumakura
Pupil circle 健
Sari Ino
Matsushita 満
Ichiro Kurasawa
Hiroko Suzuki