Aktiebolaget Electrolux

Andreas Klintemyr

Anders Haegermarck

Magnus Lindhé

Petter Forsberg

Magnus Wennerström

Daniel Kastensson

A method for a robotic cleaning device of detecting a difference in level of a surface in front of the robotic cleaning device moves. The method includes illuminating the surface with light, capturing an image of the surface, detecting a luminous section in the captured image caused by the light, identifying at least a first segment and a second segment representing the detected luminous section, and detecting, from a positional relationship between the identified first and second segment, the difference in level of the surface.

Method of detecting a difference in level of a surface in front of a robotic cleaning device

A side brush for a robotic cleaner. The side brush is rotatable about a rotation axis in a rotational direction and has a brush body and numerous linear bristles including a first bristle having a base end at the brush body and an opposite distal end. An imaginary line extends perpendicularly to the rotation axis. The first bristle extends in a bristle direction outwardly from the brush body. Seen in a top view, the bristle direction extends at a first angle to the imaginary line with the distal end pointing rearwardly in relation to the rotational direction. Seen in a side view, the bristle direction extends at a second acute angle to the rotation axis pointing away from the brush body. A robotic cleaner having such a side brush is also disclosed herein.

Side brush and robotic cleaner

A robotic vacuum cleaner having a nozzle inlet facing a surface to be cleaned, and a rotatable side brush. The rotatable side brush has bristles extending substantially in parallel with the surface to be cleaned, and the nozzle inlet includes a frame structure forming an opening, the opening being arranged in fluid communication with a debris receptacle. The bristles extend over a side portion of the nozzle inlet. The frame structure has a base portion extending substantially in parallel with the surface to be cleaned. The base portion extends at a first level. The frame structure at the side portion extends substantially in parallel with the surface to be cleaned at a second level. The first level is arranged closer to the surface to be cleaned than the second level.

Robotic vacuum cleaner

A robotic vacuum cleaner having a nozzle inlet arranged in a portion of a housing of the vacuum cleaner. The nozzle inlet has a frame structure forming an opening. The frame structure has a base portion extending substantially in parallel with a surface to be cleaned, the base portion extending at a first level. A leading edge portion has at least two distance members forming there between a channel to the opening. The channel has a delimiting surface extending at a second level substantially in parallel with the first level. The first level is arranged closer to the surface to be cleaned than the second level. Each distance member has a substantially triangular cross section. At least a portion of side surfaces of the distance members extend substantially perpendicularly to the base portion.

A method of controlling rotating side brushes of a robotic cleaning device and a robotic cleaning device performing the method. The robotic cleaning device has a main body, a propulsion system arranged to move the robotic cleaning device across a surface to be cleaned, and a controller arranged to control the propulsion system to move the robotic cleaning device across the surface to be cleaned in accordance with navigation information. The robotic cleaning device has an opening arranged in a bottom side of the main body via which debris is removed from the surface to be cleaned, and at least one rotating side brush adjacent to the opening. The controller registers a speed with which the robotic cleaning device moves across the surface to be cleaned, and controls a rotational speed of the rotating side brush on the basis of the registered speed of movement of the robotic cleaning device.

Growing community of inventors

Stockholm, Sweden

Andreas Klintemyr