Robot cleaner and method for controlling the same
AssigneeLG Electronics Inc.
InventorsJaewon Jang, Sungil Park, Hwang Kim
Life of this patent
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Abstract
A robot cleaner and a method for controlling the same are disclosed. The robot cleaner includes a body provided with a suction portion and a slope formed to be inclined at a lower end thereof, an auxiliary front wheel disposed at a rear side of the slope, a main wheel disposed at a rear side of the auxiliary front wheel and arranged such that a height of the main wheel is variable with respect to the body, and a driving unit to lower or raise the main wheel with respect to the body, wherein the driving unit lowers the main wheel when the auxiliary front wheel enters a stepped portion. The robot cleaner is capable of climbing up a higher stepped portion than in conventional cases.
Claims20
A robot cleaner comprising:
- a body provided with a suction portion;
- an auxiliary front wheel disposed at the body;
- a main wheel disposed at a rear side of the auxiliary front wheel and arranged such that a height of the main wheel is variable with respect to the body;
- and
- a driving unit to lower or raise the main wheel with respect to the body,
- wherein the driving unit lowers the main wheel when the auxiliary front wheel enters a stepped portion.
A method for controlling a robot cleaner comprising the steps of:
- determining whether an auxiliary front wheel installed at a body of the robot cleaner enters a stepped portion;
- lowering a main wheel of the robot cleaner with respect to the body when the auxiliary front wheel enters the stepped portion;
- determining whether the main wheel enters the stepped portion:
- and
- raising the main wheel with respect to the body when the main wheel enters the stepped portion.
A robot cleaner comprising:
- a body provided with a suction portion;
- an auxiliary front wheel disposed at the body;
- a main wheel disposed at a rear side of the auxiliary front wheel and arranged such that a height of the main wheel is variable with respect to the body;
- a controller to control a driving unit adapted to lower or raise the main wheel with respect to the body;
- and
- a sensor to transmit a signal to the controller;
- wherein the controller lowers or raises the main wheel according to a signal transmitted from the sensor.
Dependencies are inferred from the claim text.