Vacuum cleaner with brushroll control
AssigneeTechtronic Industries Co. Ltd.
InventorsEvan Gordon, Will Sebastian, Patrick Truitt, Shadi Sumrain
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner includes a base having a floor nozzle that defines a suction chamber, a brushroll driven by a brushroll motor, and a brushroll motor sensor configured to measure an electrical current used by the brushroll motor. The vacuum cleaner further includes a pressure sensor configured to measure an internal pressure within the vacuum cleaner, and a controller in communication with the brushroll motor sensor and the pressure sensor. The controller is operable to control an operating speed of the brushroll motor based on feedback received from the pressure sensor and the brushroll motor sensor.
Claims21
A vacuum cleaner comprising:
- a base including a floor nozzle, the floor nozzle defining a suction chamber;
- a brushroll driven by a brushroll motor;
- a brushroll motor sensor configured to measure an electrical current used by the brushroll motor;
- a pressure sensor configured to measure an internal pressure within the vacuum cleaner;
- and
- a controller in communication with the brushroll motor sensor and the pressure sensor,
- wherein the controller is operable to control an operating speed of the brushroll motor based on feedback received from the pressure sensor and the brushroll motor sensor.
A method of controlling a brushroll motor in a vacuum cleaner, the method comprising:
- sensing a pressure within the vacuum cleaner;
- sensing a motor current of the brushroll motor used to drive a brushroll;
- comparing the sensed pressure with one or more reference pressure values;
- comparing the sensed motor current with one or more reference current values;
- and
- controlling operation of the brushroll motor based on the sensed pressure and the sensed motor current,
- wherein controlling operation of the brushroll motor includes turning the brushroll motor on based on the sensed pressure.
21-43. (canceled)
Dependencies are inferred from the claim text.