SE547361C2 - Battery for a power tool with a communication interface and a control device for estimation of battery capacity - Google Patents

Battery for a power tool with a communication interface and a control device for estimation of battery capacity

Info

Publication number
SE547361C2
SE547361C2 SE2430015A SE2430015A SE547361C2 SE 547361 C2 SE547361 C2 SE 547361C2 SE 2430015 A SE2430015 A SE 2430015A SE 2430015 A SE2430015 A SE 2430015A SE 547361 C2 SE547361 C2 SE 547361C2
Authority
SE
Sweden
Prior art keywords
battery
power tool
energy requirement
control device
energy
Prior art date
Application number
SE2430015A
Other languages
Swedish (sv)
Other versions
SE2430015A1 (en
Inventor
Nicholas Sävenlid
Original Assignee
Atlas Copco Ind Technique Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Atlas Copco Ind Technique Ab filed Critical Atlas Copco Ind Technique Ab
Priority to SE2430015A priority Critical patent/SE2430015A1/en
Priority to EP24222046.5A priority patent/EP4593236A1/en
Priority to US19/013,301 priority patent/US20250239662A1/en
Priority to CN202510041619.5A priority patent/CN120357056A/en
Publication of SE547361C2 publication Critical patent/SE547361C2/en
Publication of SE2430015A1 publication Critical patent/SE2430015A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/977—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/933—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop

Landscapes

  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Computer Hardware Design (AREA)
  • Secondary Cells (AREA)
  • Portable Power Tools In General (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A battery (2) is provided that is arranged to power a power tool (3) connected thereto. The battery comprises a communication interface (6) arranged to communicate with the power tool, and a control device (4). The control device is configured to, via the communication interface, receive from the power tool data indicative of an energy requirement for an upcoming operation to be performed by the power tool; estimate whether the battery at the moment is able to deliver power according to said energy requirement; and, based on the estimation, issue an approval or a denial of taking power from the battery to the power tool for performing the operation.

Claims (11)

1. Battery (2) arranged to power a power tool (3) connected thereto, the battery comprising: a communication interface (6) arranged to communicate with the power tool; and a control device (4)_; - configured to: - via the communication interface, receive from the power tool data indicative of an energy requirement for an upcoming operation to be performed by the power tool; - estimate whether the battery at the moment is able to deliver power according to said energy requirement; and - based on the estimation, issue an approval or a denial oftaking power from the battery to the power tool for performing the operation.
2. Battery as defined in claim 1, wherein said energy requirement for the upcoming operation comprises an estimated amount of energy required for the upcoming operation.
3. Battery as defined in claim 2, wherein estimating whether the battery at the moment is able to deliver power according to said energy requirement comprises to: - estimate an amount of energy currently available in the battery for powering the power tool, and - determine whether the estimated amount of available energy is greater than the amount of energy as indicated by the data received from the power tool.
4. Battery as defined in any one ofthe preceding claims, wherein said energy requirement for the upcoming operation comprises a profile (10) indicative of an energy consumption over time for the upcoming operation.
5. Battery as defined in any one of the preceding claims, further comprising a temperature sensor (8) arranged to sense the temperature of one or more cells ofthe battery, wherein estimating whether the battery at the moment is able to deliver power according to said energy requirement is based on a current temperature as indicated by data received from the temperature sensor.
6. Battery as defined in claim 5, wherein estimating whether the battery at the moment is able to deliver power according to said energy requirement comprises to: - based on said current temperature, the energy requirement and a thermal model, estimate a maximum temperature of the one or more cells, that will occur as a result of the operation, wherein issuing said approval or denial is based on whether said maximum temperature is below or above a predetermined threshold.
7. Battery as defined in claim 6, the control device being further configured to: - in response to said maximum temperature being above the predetermined threshold, estimate a time period that has to lapse before starting the operation; and - issue a notification indicating said time period.
8. Battery as defined in any one ofthe preceding claims, the control device being further configured to, in case issuing a denial, issue a notification indicative thereof.
9. Kit (1) comprising a power tool (3) and a battery (2) according to any one ofthe preceding claims for powering the power tool.
10. Kit according to claim 9, wherein the power tool comprises a control device (5) configured to determine said energy requirement for theupcoming operation and to communicate that to the control device of the battery.
11. Kit according to claim 10, the control device of the power tool being configured to communicate said energy requirement to the battery in response to a user triggering start of an operation of the power tool.
SE2430015A 2024-01-19 2024-01-19 Battery for a power tool with a communication interface and a control device for estimation of battery capacity SE2430015A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE2430015A SE2430015A1 (en) 2024-01-19 2024-01-19 Battery for a power tool with a communication interface and a control device for estimation of battery capacity
EP24222046.5A EP4593236A1 (en) 2024-01-19 2024-12-20 Battery for a power tool
US19/013,301 US20250239662A1 (en) 2024-01-19 2025-01-08 Battery for a power tool
CN202510041619.5A CN120357056A (en) 2024-01-19 2025-01-10 Battery for power tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2430015A SE2430015A1 (en) 2024-01-19 2024-01-19 Battery for a power tool with a communication interface and a control device for estimation of battery capacity

Publications (2)

Publication Number Publication Date
SE547361C2 true SE547361C2 (en) 2025-07-15
SE2430015A1 SE2430015A1 (en) 2025-07-15

Family

ID=93925633

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2430015A SE2430015A1 (en) 2024-01-19 2024-01-19 Battery for a power tool with a communication interface and a control device for estimation of battery capacity

Country Status (4)

Country Link
US (1) US20250239662A1 (en)
EP (1) EP4593236A1 (en)
CN (1) CN120357056A (en)
SE (1) SE2430015A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180307244A1 (en) * 2017-04-21 2018-10-25 Ford Global Technologies, Llc Cloud-based connectivity energy budget manager
EP3711903A1 (en) * 2019-03-22 2020-09-23 Einhell Germany AG Energy storage device with prediction control
US20210152003A1 (en) * 2019-11-20 2021-05-20 Semiconductor Components Industries, Llc Methods and apparatus for a battery
DE102020120490A1 (en) * 2020-08-04 2022-02-10 Einhell Germany Ag Battery pack for a power tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2021014829A (en) * 2020-12-11 2022-07-12 Techtronic Cordless Gp METHOD TO ESTIMATE THE STATE OF CHARGE OF A BATTERY PACK.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180307244A1 (en) * 2017-04-21 2018-10-25 Ford Global Technologies, Llc Cloud-based connectivity energy budget manager
EP3711903A1 (en) * 2019-03-22 2020-09-23 Einhell Germany AG Energy storage device with prediction control
US20210152003A1 (en) * 2019-11-20 2021-05-20 Semiconductor Components Industries, Llc Methods and apparatus for a battery
DE102020120490A1 (en) * 2020-08-04 2022-02-10 Einhell Germany Ag Battery pack for a power tool

Also Published As

Publication number Publication date
US20250239662A1 (en) 2025-07-24
EP4593236A1 (en) 2025-07-30
SE2430015A1 (en) 2025-07-15
CN120357056A (en) 2025-07-22

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