# US 11,906,954 B2 · Method for providing automated assistance with repairing a motor-driven tool and system for providing automated assistance with repairing a motor-driven tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,954 B2 - Document ID: US11906954B2 - Status: Granted - Kind: B2 - Application number: 17/175,352 - Filed: 2021-02-12 - Published: 2021-08-19 - Granted: 2024-02-20 - Earliest claimed: 2020-02-13 - Assignees: Andreas Stihl AG & Co. KG - Applicants: Andreas Stihl AG & Co. KG - Inventors: Robert Boeker; Martin Bobert - Web page: https://patentgrep.com/patent/US11906954B2 ## CPC - G05B 23/0205: {by means of a monitoring system capable of detecting and responding to faults} - G06Q 10/20: Administration of product repair or maintenance - B25F 5/00: Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} ## Abstract A method for providing automated assistance with repairing a motor-driven tool, includes the steps of: ascertaining at least one boundary operating condition of the tool, wherein the tool has previously not functioned properly under this boundary operating condition; determining a set of possible fault symptoms, possible causes of faults of the tool, possible repair action instructions, and/or possible replacement parts for the tool, on the basis of the ascertained boundary operating condition; and outputting the determined set of possible fault symptoms, possible causes of faults, possible repair action instructions, and/or possible replacement parts. ## Claims ### Claim 1 A method for providing automated assistance with repairing a motor-driven tool, the method comprising the steps of: a) ascertaining at least one boundary operating condition of the tool, wherein the tool has previously not functioned properly under this boundary operating condition; b) determining a set of possible fault symptoms of the tool on the basis of the ascertained boundary operating condition, wherein the set of possible fault symptoms are selectable by a user; c) outputting the determined set of possible fault symptoms, d) selecting a fault symptom from the determined set of possible fault symptoms which are selectable by the user; e) determining a set of possible causes of faults of the tool, possible repair action instructions, and/or possible replacement parts for the tool on the basis of the selected fault symptom; and f) outputting the determined set of possible causes of faults, possible repair action instructions, and/or possible replacement parts. ### Claim 2 (depends on 1) The method according to claim 1, wherein the tool does not have a fault sensor and/or does not have a fault memory. ### Claim 3 (depends on 1) The method according to claim 1, wherein the boundary operating condition comprises at least one of: a meteorological characteristic variable comprising at least one of: an air pressure value, an air humidity value, a precipitation value and/or a temperature value, or an altitude value, or a position of an operating environment of the tool. ### Claim 4 (depends on 3) The method according to claim 3, wherein the step a) comprises: ascertaining an altitude value and/or a position of an operating environment of the tool, and ascertaining the meteorological characteristic variable on the basis of the ascertained altitude value and/or the ascertained position. ### Claim 5 (depends on 1) The method according to claim 1, wherein the tool comprises an internal-combustion-engine drive system, the internal-combustion-engine drive system has previously not functioned properly under this boundary operating condition, and the set of possible fault symptoms, possible causes of faults of the internal-combustion-engine drive system, possible repair action instructions, and/or possible replacement parts is for the internal-combustion-engine drive system. ### Claim 6 (depends on 5) The method according to claim 5, wherein the internal-combustion-engine drive system comprises at least one of: a mixture controller, a spark plug, a valve or a clutch. ### Claim 7 (depends on 6) The method according to claim 6 wherein the mixture controller is a carburettor, or the valve is a fuel inlet valve. ### Claim 8 (depends on 1) The method according to claim 1, wherein the tool is a saw, a pole-mounted pruner, a brush cutter, hedge shears, a hedge cutter, a blower, a leaf blower, branch shears, an angle grinder, a sweeping implement, a sweeping roller, a sweeping brush, a lawnmower, a verticutter, a grass trimmer, a chopper, a stone cutter, a high pressure cleaner or a spraying device and/or sprayer. ### Claim 9 (depends on 1) The method according to claim 1, further comprising the steps of: ascertaining a type of the tool; and determining the set of possible fault symptoms, possible causes of faults, possible repair action instructions, and/or possible replacement parts, on the basis of the ascertained type. ### Claim 10 (depends on 9) The method according to claim 9, wherein the ascertaining of the type of the tool comprises: selecting the type of the tool from a set of different types of motor-driven tools. ### Claim 11 (depends on 9) The method according to claim 9, wherein the determination comprises: selecting the set of possible fault symptoms from a set of different fault symptoms, wherein the different fault symptoms are each assigned at least one boundary operating condition from a set of different boundary operating conditions, and at least one type of a tool from a set of different types of tools, and/or wherein the determination comprises: selecting the set of possible causes of faults, possible repair action instructions, and/or possible replacement parts from a set of different causes of faults, different repair action instructions, and/or different replacement parts, wherein the different causes of faults, the different repair action instructions, and/or the different replacement parts are each assigned at least one boundary operating condition from a set of different boundary operating conditions and/or at least one fault symptom from a set of different fault symptoms, and at least one type of a tool from a set of different types of tools. ### Claim 12 (depends on 11) The method according to claim 11, further comprising the steps of: ascertaining an actual fault symptom, an actual cause of a fault of the tool, an actual repair action instruction, and/or an actual replacement part for the tool; and assigning: (i) the at least one boundary operating condition to the actual ascertained fault symptom, and/or (ii) the at least one boundary operating condition and/or the fault symptom, to the actual ascertained cause of a fault, to the actual ascertained repair action instruction, and/or to the actual ascertained replacement part, for a subsequent execution of the method. ### Claim 13 (depends on 1) The method according to claim 1, further comprising the steps of: ascertaining at least one operating condition, in the form of an operating rotational speed frequency distribution, of the tool, until the tool has not functioned properly; determining the set of possible fault symptoms, possible causes of faults of the tool, possible repair action instructions, and/or possible replacement parts for the tool on the basis of the ascertained operating condition; and outputting the determined set of possible fault symptoms, possible causes of faults, possible repair action instructions, and/or possible replacement parts. ### Claim 14 A system for providing automated assistance with repairing a motor-driven tool, the system comprising: an ascertaining device, wherein the ascertaining device is configured to ascertain at least one boundary operating condition of the tool, wherein the tool has previously not functioned properly under this boundary operating condition; a determining device, wherein the determining device is configured to determine a set of possible fault symptoms of the tool on the basis of the ascertained boundary operating condition, the set of possible fault symptoms being selectable by a user; an output device, wherein the output device is configured to output the determined set of possible fault symptoms; a selection device, wherein the selection device is configured to select a fault symptom from the determined set of possible fault symptoms which are selectable by the user; wherein the determining device is further configured to determine a set of possible causes of faults of the tool, possible repair action instructions, and/or possible replacement parts for the tool on the basis of the selected fault symptom; and wherein the output device is further configured to output the determined set of possible causes of faults, possible repair action instructions, and/or possible replacement parts. ### Claim 15 (depends on 14) The system according to claim 14, further comprising the tool.