# US 10,440,879 B2 · Robotic work tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,440,879 B2 - Document ID: US10440879B2 - Status: Granted - Kind: B2 - Application number: 15/306,319 - Filed: 2014-04-25 - Published: 2017-02-16 - Granted: 2019-10-15 - Earliest claimed: 2014-04-25 - Assignees: Husqvarna AB - Applicants: Husqvarna AB - Inventors: Jonathan Björn; Martin Elonsson - Web page: https://patentgrep.com/patent/US10440879B2 ## CPC - A01D 34/008: {for automated or remotely controlled operation} - A01D 34/78: electric - B60L 1/003: {to auxiliary motors, e.g. for pumps, compressors} - B60L 3/0061: {relating to electrical machines} - B60L 8/003: {Converting light into electric energy, e.g. by using photo-voltaic systems} - B60L 15/20: for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed - B60L 50/52: characterised by DC-motors - B60L 50/66: {Arrangements of batteries} - B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles - A01D 34/64: mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle (A01D34/695 takes precedence) - B60L 2200/40: Working vehicles - B60L 2240/36: Temperature of vehicle components or parts - B60L 2240/421: Speed - B60L 2260/32: Auto pilot mode - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 10/72: Electric energy management in electromobility - Y02T 90/14: Plug-in electric vehicles - A01D: HARVESTING; MOWING - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A robotic work tool system (200) comprising a robotic work tool (100), said robotic work tool (100) comprising a chassis (140B) and a body (140A) and at least one support pillar (310) arranged on one of the chassis (140B) and the body (140A) and a corresponding support surface (320) arranged on the other of the chassis (140B) and the body (140A), wherein the support pillar substantially bridges a distance between the chassis (140B) and the body (140A) thereby impairing any roll or tilt of the body (140A) relative the chassis (140B). ## Claims ### Claim 1 A robotic work tool system comprising a robotic work tool, wherein said robotic work tool is a robotic lawnmower, and wherein said robotic work tool comprises: a chassis: a body; and at least one support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body, wherein said at least one support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and wherein said at least one support pillar is not attached to said support surface. ### Claim 2 (depends on 1) The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged at a side of a fixation point. ### Claim 3 (depends on 1) The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged at a corner of said robotic work tool. ### Claim 4 (depends on 1) The robotic work tool system according to claim 1, wherein said at least one support pillar is arranged to extend substantially across said distance, but leave a gap between the at least one support pillar and the corresponding support surface. ### Claim 5 (depends on 1) The robotic work tool system according to claim 1, wherein said at least one support pillar extends vertically from said one of the chassis and the body toward said other of the chassis and the body. ### Claim 6 A robotic work tool system comprising a robotic work tool, the robotic work tool comprising: a chassis; a body; and a support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body, wherein the support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and wherein the support pillar extends vertically from the one of the chassis or the body toward the other of the chassis or the body. ### Claim 7 (depends on 6) The robotic work tool system according to claim 6, wherein the support pillar is not attached to the corresponding support surface. ### Claim 8 (depends on 6) The robotic work tool system according to claim 6, wherein the robotic work tool is a robotic lawnmower. ### Claim 9 (depends on 6) The robotic work tool system according to claim 6, wherein the support pillar is arranged at a side of a fixation point. ### Claim 10 (depends on 6) The robotic work tool system according to claim 6, wherein the support pillar is arranged at a corner of the robotic work tool. ### Claim 11 (depends on 6) The robotic work tool system according to claim 6, wherein the support pillar is arranged to extend substantially across the distance, but leave a gap between the support pillar and the corresponding support surface. ### Claim 12 A robotic work tool system comprising a robotic work tool, the robotic work tool comprising: a chassis; a body; and a support pillar arranged on one of the chassis or the body and a corresponding support surface arranged on the other of the chassis or the body, wherein the support pillar substantially bridges a distance between the chassis and the body thereby impairing any roll or tilt of the body relative to the chassis, and wherein a gap is defined between the support pillar and the corresponding support surface. ### Claim 13 (depends on 12) The robotic work tool system according to claim 12, wherein the support pillar is arranged at a side of a fixation point. ### Claim 14 (depends on 12) The robotic work tool system according to claim 12, wherein the support pillar is arranged at a corner of the robotic work tool. ### Claim 15 (depends on 12) The robotic work tool system according to claim 12, wherein the support pillar is arranged to extend substantially across the distance. ### Claim 16 (depends on 12) The robotic work tool system according to claim 12, wherein the robotic work tool is a robotic lawnmower. ### Claim 17 (depends on 12) The robotic work tool system according to claim 12, wherein the support pillar extends vertically from the one of the chassis or the body toward the other of the chassis or the body.