A ROBOTIC WORK TOOL AND A METHOD FOR USE IN A ROBOTIC WORK TOOL COMPRISING A LIFT AND COLLISION DETECTION

• Main Authors: HJALMARSSON, Anders, KALLSTRÖM, Fredrik, BJÖRN, Jonathan, SVENSSON, Mats, SVENSSON, Pär-Ola
• Format: Patent
• Language: English; French; German
• Published: 23.08.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING; FISHING; FORESTRY; HARVESTING; HUMAN NECESSITIES; HUNTING; MOWING; PERFORMING OPERATIONS; PHYSICS; REGULATING; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING; TRAPPING; VEHICLES IN GENERAL

A robotic work tool having a chassis, a cover and a controller for controlling the operation of the robotic work tool. The robotic work tool further has a lift/collision detection device (300) connected to the controller for providing sensor input, and which Hft/coUision detection device (300) includes a first sensor element (340) and a second sensor element (345). The controller (110) is configured to receive sensor input of a distance value indicating a distance between the first sensor element (340) and the second sensor element (345), determine that a lift has been detected, fay comparing the distance value with a lift detection threshold and/or determine that a collision has been detected, by comparing the distance value with a collision detection threshold, wherein the collision detection threshold is different from the lift detection threshold.