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US 6,105,202 AGranted
Intelligent suction device capable of automatically adapting the suction force according to the conditions of the surface, particularly for vacuum cleaners and the like
AssigneeSTMicrolectronics S.A.
InventorsGiuseppe Grasso, Matteo Lo Presti, Gianfranco Sortino
Life of this patent
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Abstract
An intelligent suction device, particularly for vacuum cleaners and the like, includes a fuzzy-logic controller for controlling the motor of a fan or turbine. The suction pressure is detected by at least one pressure sensor which feeds back its measurement, in a closed loop, to the controller.
Claims20
An intelligent suction device comprising:
- a motor and a fan connected thereto for generating a suction airflow;
- at least one pressure sensor which senses pressure generated by the suction airflow;
- and
- a fuzzy-logic controller which determines at least one derivative of sensed pressure from said at least one pressure sensor and controls said motor responsive thereto.
1 more element
An intelligent suction device comprising:
- a motor and a fan connected thereto for generating a suction airflow;
- at least one pressure sensor which senses pressure generated by the suction airflow;
- and
- a fuzzy-logic controller implementing at least a first expert system using fuzzy logic for control of motor speed, said fuzzy-logic controller determining at least one derivative of sensed pressure from said at least one pressure sensor and controlling said motor responsive thereto.
1 more element
An intelligent suction device comprising:
- a motor and a fan connected thereto for generating a suction airflow;
- at least one pressure sensor which senses pressure generated by the suction airflow;
- and
- a fuzzy-logic controller for controlling said motor responsive to said at least one pressure sensor by implementing an expert system using fuzzy logic to control said motor to one of a standby condition and a working condition based upon at least one derivative of pressure sensed by said at least one pressure sensor.
1 more element
Dependencies are inferred from the claim text.