Husqvarna Ab

Peter Hallin

Patrik Jägenstedt

Martin Elonsson

Olle Markusson

Jonathan Björn

Christer Gustavsson

Gunnar Andersson

Patrick Pettersson

Peter Ahlin

Antoine Van De Griendt

A robotic work tool system (), comprising a charging station (), a boundary wire (), a signal generator () for generating and transmitting a signal through said boundary wire () for demarcating a work area () and for generating a magnetic field () for guiding a robotic work tool () to said charging station (), said robotic work tool () being configured to detect a magnetic field strength of the magnetic field () in the work area (), direct itself towards an increasing magnetic field strength, determine that the robotic work tool () is unable to reach the charging station (), inform the robotic work tool system () accordingly, whereby the robotic work tool system () is configured to adapt a current level of the signal generating the magnetic field ().

Robotic work tool system and method comprising a charging station

A charging coupling for connecting a robotic garden tool with a charging device may facilitate the charging of a battery of the robotic garden tool. The charging coupling may include a first charging contact and a second charging contact. The first charging contact may be a charging plate or a charging rod. The second charging contact may be provided with a row of resilient contact bars. The arrangement of the first charging contact and the second charging contact may be configured such that the resilient contact bars are pressed against the charging plate to provide multiple contact points.

Effective charging by multiple contact points

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Habo, Sweden

Peter Hallin