Husqvarna Ab

Jonas Bergström

Patrik Jägenstedt

Mattias Kamfors

Olle Markusson

Stefan Strandberg

Fredrik Klackensjö

Robotic work tool () configured for improved turning in a slope (S), said robotic work tool comprising a slope detector (), at least one magnetic field sensor (), a controller (), and at least two driving wheels (&#x2033;), the robotic work tool () being configured to detect a boundary wire () and in response thereto determine if the robotic work tool () is in a slope (S), and if so, perform a turn by rotating each wheel (&#x2033;) at a different speed thereby reducing a risk of the robotic work tool () getting stuck.

Robotic work tool configured for improved turning in a slope, a robotic work tool system, and a method for use in the robot work tool

The present invention relates to a method () and a system () for navigating a robotic garden tool () based on one or more operating parameters for subareas (-) within the working area () and a current location of the robotic garden tool (). The working area () is provided with a signal source () corresponding to which a sensor unit () is provided in the robotic garden tool () for detecting the one or more signals () from the signal source (). The robotic garden tool () may include a low-accuracy positioning device () for providing co-ordinates of various subareas (-) and at any given instant, an approximate location of the robotic garden tool (). The robotic garden tool () further includes a processor means () for comparing the coordinates of the subareas (-) and the approximate position of the robotic garden tool () to determine a current location of the robotic garden tool () in the working area ().

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Malmbäck, Sweden

Jonas Bergström