# US 11,309,591 B2 · Method and device for estimating a state of an energy storage system of a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,591 B2 - Document ID: US11309591B2 - Status: Granted - Kind: B2 - Application number: 16/093,952 - Filed: 2017-04-07 - Published: 2019-05-09 - Granted: 2022-04-19 - Earliest claimed: 2016-04-15 - Assignees: Ciarlos Germany GmbH & Co. KG; Robert Bosch GmbH - Applicants: Clarios Germany GmbH & Co. KGAA; Robert Bosch GmbH - Inventors: Ingo Koch; Eberhard Meissner; Peter Ostertag - Web page: https://patentgrep.com/patent/US11309591B2 ## CPC - H01M 10/4285: {Testing apparatus} - B60L 1/00: Supplying electric power to auxiliary equipment of vehicles (circuit arrangements for charging batteries H02J7/00) - B60L 1/14: to electric lighting circuits - B60L 3/12: Recording operating variables {; Monitoring of operating variables} - B60L 58/16: responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH] - H01M 10/42: Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells (H01M10/60 takes precedence) - B60L 2240/80: Time limits - B60L 2250/16: by display - B60L 2260/44: by parameter estimation - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - 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 method of estimating a state of an energy storage system of a vehicle, in particular for estimating an aging state of the energy storage system, includes the following steps: acquiring information about the energy storage system; analyzing the acquired information while taking into account specified boundary conditions; and estimating the state of the energy storage system. ## Claims ### Claim 1 A method of estimating a state of an energy storage system of a vehicle, wherein the method comprises: acquiring information about the energy storage system; analyzing the acquired information while taking into account specified boundary conditions; and estimating the state of the energy storage system without using directly or indirectly measured values of a capacitance, charge, voltage, current of the energy storage system or any combination thereof, wherein vehicle function data is recorded for acquiring the information about the energy storage system, wherein a function change comprising an occurrence, an absence, or a function restriction of at least one vehicle function is concluded or can be concluded from the vehicle function data, and wherein the vehicle function data comprise: data concerning a fulfilment/non-fulfilment of at least one vehicle function including data concerning at least one functional component or safety component, in particular data concerning operation of a radiator of an engine of the vehicle, internal lighting, external lighting, power steering, power braking, a gearbox, a clutch, an electric clutch, technical driving safety systems, ride stability control systems, or driving dynamics management-systems, or any combination thereof; data concerning switching off or switching on a combustion engine of the vehicle in a start-stop mode of the combustion engine; data concerning the fulfilment/non-fulfilment of at least one vehicle function including data concerning operation of at least one comfort component, in particular data concerning operation of an air conditioning system, heating, an audio/video entertainment system, a navigation system, or any combination thereof; or any combination thereof. ### Claim 2 (depends on 1) The method of claim 1, comprising acquiring information about discharge processes of the energy storage system. ### Claim 3 (depends on 1) The method of claim 1, comprising acquiring information about charging processes of the energy storage system. ### Claim 4 (depends on 1) The method of claim 1, wherein the vehicle function data is recorded for acquiring information about discharge processes, or for acquiring information about charging processes, or for any combination thereof. ### Claim 5 (depends on 4) The method of claim 4, comprising: generating output information based on the vehicle function data; and providing the generated output information, preferably in the form of a data record, a graphical representation, or a graphical user interface or any combination thereof. ### Claim 6 (depends on 5) The method of claim 5, wherein the output information comprises an estimate of the state of the energy storage system. ### Claim 7 (depends on 1) The method of claim 1, wherein a frequency of the function change during a specified or specifiable period of time is concluded or can be concluded from the vehicle function data. ### Claim 8 (depends on 4) The method of claim 4, wherein a period of time required for a function change of at least one vehicle function is concluded or can be concluded from the vehicle function data, wherein the function change comprises an occurrence, an absence or a function restriction. ### Claim 9 (depends on 4) The method of claim 4, wherein a reason for, or a cause of a function change comprising an occurrence, an absence or a function restriction of at least one vehicle function is concluded or can be concluded from the vehicle function data. ### Claim 10 (depends on 4) The method of claim 4, wherein the specified boundary conditions comprise predetermined or definable vehicle function data, or example vehicle function data, or any combination thereof. ### Claim 11 (depends on 1) The method of claim 1, wherein estimating a state of the energy storage system comprises taking into account, as an additional parameter, information about the manufacturer, the data of manufacture, or the type of the energy storage system, or any combination thereof. ### Claim 12 (depends on 1) The method of claim 1, wherein estimating the state of the energy storage system is carried out using a software-based simulation model. ### Claim 13 (depends on 12) The method of claim 12, wherein the acquired information about the energy storage system, the acquired information about discharge processes, or the acquired information about charging processes, or any combination thereof, are input values for the software-based simulation model. ### Claim 14 (depends on 1) The method of claim 1, wherein the energy storage system is embodied as an accumulator, as a double-layer capacitor, or as a fuel cell, or as any combination thereof.