Ponsse Oyj

Markku Savolainen

Jukka Tossavainen

Janne Loponen

Vesa YRJÄNÄ

In the present arrangement, a forest machine is controlled, which forest machine includes a body (2), a boom (3) in connection with the body (2) and a tool (4) at the end of the boom (3). A sensor (9) arrangement determines in advance the size of utilizable free space (1 1A, 1 1B) starting from the end of the boom (3). This determination includes determining a direction and a length of the free space (11B). The operation of the tool (4) is allowed into the direction and for the length of the utilizable free space (1 1A, 1 1B) determined in advance.

Method in control of forest machine and control arrangement

A control arrangement includes at least one sensor. The sensor is adapted to detect at least one object in an area of at least one predefined sector focused in an area between a control cabin and a boom end, and to detect at least one of: location information of the detected object at two different time instants, at least, and the speed of the detected object. The control arrangement additionally includes at least one control unit adapted to determine at least the direction of travel of the detected object in relation to the control cabin at two different time instants, at least, based on the detected location information and/or the detected speed of the object, and cause a change in the control of a forest machine responsive to the detected direction of movement of the detected object being directed towards the control cabin in the area of the sector.

Growing community of inventors

Vieremä, Finland

Markku Savolainen