EP3198675A1 - Extrémité de charge intelligente - Google Patents

Extrémité de charge intelligente

Info

Publication number
EP3198675A1
EP3198675A1 EP15767158.7A EP15767158A EP3198675A1 EP 3198675 A1 EP3198675 A1 EP 3198675A1 EP 15767158 A EP15767158 A EP 15767158A EP 3198675 A1 EP3198675 A1 EP 3198675A1
Authority
EP
European Patent Office
Prior art keywords
charge
state
accumulator
value
charging
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15767158.7A
Other languages
German (de)
English (en)
Inventor
Stefan Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3198675A1 publication Critical patent/EP3198675A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/387—Determining ampere-hour charge capacity or SoC
    • 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
    • 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
    • H01M10/44—Methods for charging or discharging
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • G01R31/387—Determining ampere-hour charge capacity or SoC
    • G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
    • 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
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a method for controlling a rechargeable battery, wherein the rechargeable battery contains a control device and can be used, for example, to supply a machine tool with electrical energy. Moreover, the invention relates to an accumulator for carrying out this method.
  • a method for controlling a rechargeable battery is provided. By the method, the performance and the life of the accumulator can be optimized or increased.
  • a method for controlling an accumulator, wherein the accumulator contains a control device and can be used, for example, to supply a machine tool with electrical energy.
  • the setting of the third state of charge takes place after a predetermined number of charging processes of the accumulator, wherein the state of charge value of the third state of charge corresponds to an average difference value.
  • the predetermined number may correspond to at least three charging operations of the accumulator. However, it is also possible that the predetermined number corresponds to less than or exactly three charging operations of the accumulator.
  • the third state of charge can be set to a state of charge value that corresponds to a charge state that is actually used or that is necessary for the rechargeable battery.
  • the third state of charge may be determined by means of an input device positioned on the accumulator. This makes it possible for a user of the accumulator or a machine tool connected to the accumulator to freely select the third state of charge and thus increase or decrease the capacity of the accumulator as desired.
  • the first, second and third state of charge corresponds to a capacitance, a charging voltage or a charging current.
  • FIG. 1 shows a schematic representation of a machine tool together with an accumulator according to the invention for operating the method according to the invention for controlling the accumulator;
  • Figure 2 is a schematic representation of the accumulator in connection with a charger.
  • FIG. 3 shows a flow chart of the method according to the invention for controlling a rechargeable battery according to a first embodiment
  • FIG. 4 shows a flow chart of the method according to the invention for controlling a rechargeable battery according to a second embodiment
  • FIG. 5 shows a flow chart of the method according to the invention for controlling a rechargeable battery according to a third embodiment
  • FIG. 6 shows a flow chart of the method according to the invention for controlling a rechargeable battery according to a fourth embodiment.
  • Fig. 1 shows a machine tool 1 in the form of a drill.
  • the machine tool 1 embodied as a drilling machine essentially comprises a housing 2, a grip 3 and an accumulator 4.
  • the housing 2 includes a front end 2a, a rear end 2b, an upper end 2c and a lower end 2d. At the front end 2a, a tool holder 5 is positioned, which holds a tool 6.
  • the tool 6 is designed as a drill.
  • an electric motor 7, an output shaft 8, a transmission 9 and a control device 10 are positioned. With the help of the electric motor 7, the output shaft 8 is driven via the transmission 9. The output shaft 8 is in turn fixed to the tool designed as a drill
  • the drill 6 can thus be rotated either in the direction R or in the direction R '.
  • the control device 10 is configured with the electric motor 7 for controlling the rotational speed of the electric motor 7 and for controlling the torque generated in the electric motor 7. For this purpose, the control device 10 via a line A to the electric motor
  • the handle 3 includes a front end 3a, a rear end 3b, an upper end 3c and a lower end 3d. At the lower end 3d and in the vicinity of the rear end 2b of the housing 2, the upper end 3c of the handle 3 is fixed. At the front end 3a of the handle 3, a switch 1 1 is provided.
  • the switch 1 1 is designed in the form of a potentiometer and connected via a connecting line B to the control device 10. With the switch 1 1 configured as a drill machine tool 1 can be switched on and off. In addition, with the switch 1 1, the speed of the electric motor 7 and the torque generated in the electric motor 7 can be varied continuously.
  • the accumulator 4 essentially comprises a battery housing 13, a battery control device 14, an input device 15 and a number of individual rechargeable storage elements for electrical energy.
  • the memory elements may be referred to as secondary elements or secondary cells. The memory elements are not shown in the figures.
  • the battery case 13 includes a front end 13a, a rear end 13b, an upper end 13c and a lower end 13d.
  • a Positioned interface 16 with which the accumulator 4 is connectable to the lower end 3d of the handle 3 and thus with the drill 1.
  • the interface 16 contains several contacts via which information and electrical energy can be transported. The individual contacts are not shown in the figures.
  • the accumulator 4 and in particular the interface 16 are connected via a line C to the control device 10.
  • the control device 10 and the battery control device 14 is connected to each other.
  • the battery control device 14 is positioned in the battery housing 13 and connected via a line 17 to the interface 16.
  • the battery controller 14 further includes a storage unit (not shown).
  • the input device 15 is positioned at the front end 13 a of the battery housing 13 and connected by means of a line 18 to the battery control device 14.
  • the input device 15 includes a number of actuators and a display unit.
  • the actuators are designed in the form of switches.
  • the display unit is designed as a display. Neither the actuators nor the display unit are shown in the figures.
  • the input device 15 serves to input data and information (such as charge limit thresholds) into the accumulator 4.
  • Fig. 2 shows the accumulator 4 in conjunction with a charger 19.
  • the charger 19 essentially includes a housing 20, a controller 21 and a power cable 22.
  • the power cable 22 is used to the charger 19 with a (not shown) AC power source (socket ) connect to.
  • the housing 20 includes a front end 20a, a rear end 20b, an upper end 20c and a lower end 20d.
  • an interface 23 is arranged at the upper end 20c of the housing 20 of the charger 19, an interface 23 is arranged.
  • the interface 23 contains a plurality of contacts through which information and electrical energy can be transported.
  • the interface 23 of the charger 19 is designed so that it can be connected to the interface 16 of the accumulator 4.
  • 16 information and electrical energy between the accumulator 4 and the charger 19 can be exchanged.
  • electrical energy may be transported from the charger 19 to the accumulator 4 and information may be sent from the accumulator 4 to the charger 19.
  • FIG. 4 shows a second embodiment of the inventive method
  • FIG. 5 shows a third embodiment of the inventive method
  • FIG. 6 shows a fourth embodiment of the inventive method.
  • step S-1 the accumulator 4 is connected to the charger 19 so that information and electrical energy (voltage) are exchanged via the interfaces 23, 16 (see the above description of Fig. 2 ).
  • the accumulator 4 is electrically charged via the charger 19 until a first state of charge is reached.
  • This first state of charge may, for example, correspond to 90% of the electrical capacity of the rechargeable battery 4.
  • the first state of charge is stored on the storage unit of the battery control device 14 of the accumulator 4.
  • the first state of charge of the accumulator 4 corresponds to a higher or lower value.
  • the first state of charge is generally the value of the electrical capacity that the battery 4 has after a charging operation (i.e., charging of the battery 4 to the charger 19). In this case, it is not necessary for the electrical capacity of the rechargeable battery 4 to be 100% after the charging process; however, this may be the case.
  • step S-2 the accumulator 4 is connected to the machine tool 1 as described above (see Fig. 1).
  • the machine tool 1 is provided with the electric capacity stored in the accumulator 4 to operate the electric motor 7.
  • the electrical capacity stored on the accumulator 4 is continuously reduced.
  • the first state of charge of the accumulator 4 having an initial electric capacity of 90% is reduced to a second state of charge having an electric capacity of, for example, only 30%.
  • the second state of charge is stored on the storage unit of the battery control device 14 of the accumulator 4.
  • the second state of charge has a higher or lower value for the electrical capacity.
  • the value of the electric capacity for the second state of charge depends on how much of the electrical capacity (first state of charge) initially stored on the accumulator 4 is used by a user to operate the machine tool 1.
  • the above-described difference between the first state of charge and the second state of charge in the form of a differential value (90% - 30% 60% of the electric capacity of the accumulator 4) on the memory unit the battery- Control device 14 of the accumulator 4 is stored. It is also possible that a tolerance value of, for example, +/- 5% is added to this difference value. The tolerance value can also be higher or lower.
  • a third state of charge for the accumulator 4 is set.
  • the accumulator 4 is charged until reaching the third state of charge (60% of the electric capacity of the accumulator 4).
  • the accumulator 4 is for this purpose connected to the charger 19 (see Fig. 2).
  • the accumulator 4 can from premature aging and damage by repeated charging until to preserve a maximum charge since the accumulator is no longer charged to 100% of the electrical capacity). Since the user usually also does not use the theoretically possible 100% of the electrical capacity of the accumulator 4, this is not problematic in the use of the accumulator 4. If the user's demand for the amount of electrical capacity to be used should increase, the third state of charge can also be increased, thus providing a higher electrical capacity.
  • an average value of a plurality of charging processes or charging cycles (for example, three charging processes or charging cycles) is used for determining the difference value between the first charging state and the second charging state. That is, a history is created over a number of usage and charge cycles. A charge cycle is a charge and a discharge of the accumulator 4. For the determination of the third state of charge this history is taken into account.
  • the average value of three loadings for determining the difference value in the event E-1 is determined (see Fig. 4). In the event E-1 it is decided whether three loading processes have already been made or not. If three charges are done, the method continues with step S-4.
  • step S-1 If there are not yet three loadings, the process continues to step S-1.
  • more or fewer charging processes can also be used. With the aid of the determined average value for the difference value, the amount of electrical capacity used by the user (not shown) of the accumulator 4 can be better determined and a constant change of the third state of charge (ie after each use) can be avoided.
  • a predetermined (capacity) value is set when the second state of charge falls below a predetermined (capacity) value. That is, when the accumulator 4 is discharged to the extent that the second state of charge only corresponds to 20% of the electrical capacity, for example, the third state of charge is set to, for example, 95% of the electrical capacity.
  • the predetermined (capacity) value for the second state of charge has been undershot (see Fig. 5).
  • step S-4 a predetermined (capacity) value is set for the third state of charge. However, if this predetermined (capacity) value has not been exceeded, the method proceeds to step S-1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un procédé destiné à commander un accumulateur ; l'accumulateur contient un dispositif de commande et peut être utilisé par exemple pour alimenter une machine-outil en énergie électrique. Le procédé comprend les étapes suivantes : déterminer une valeur de différence entre un premier état de charge de l'accumulateur et un deuxième état de charge de l'accumulateur, le premier état de charge correspondant à un état de charge de l'accumulateur après la fin d'un processus de charge et le deuxième état de charge ayant une valeur d'état de charge inférieure au premier état de charge ; définir un troisième état de charge qui correspond à la valeur de différence, le troisième état de charge correspondant à une valeur d'état de charge qui est inférieur à une valeur d'état de charge maximale de l'accumulateur ; et charger l'accumulateur jusqu'à atteindre le troisième état de charge. L'invention concerne également un accumulateur destiné à mettre œuvre le procédé.
EP15767158.7A 2014-09-23 2015-09-23 Extrémité de charge intelligente Withdrawn EP3198675A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14185881.1A EP3001497A1 (fr) 2014-09-23 2014-09-23 Extrémité de charge intelligente
PCT/EP2015/071816 WO2016046246A1 (fr) 2014-09-23 2015-09-23 Extrémité de charge intelligente

Publications (1)

Publication Number Publication Date
EP3198675A1 true EP3198675A1 (fr) 2017-08-02

Family

ID=51625822

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14185881.1A Withdrawn EP3001497A1 (fr) 2014-09-23 2014-09-23 Extrémité de charge intelligente
EP15767158.7A Withdrawn EP3198675A1 (fr) 2014-09-23 2015-09-23 Extrémité de charge intelligente

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14185881.1A Withdrawn EP3001497A1 (fr) 2014-09-23 2014-09-23 Extrémité de charge intelligente

Country Status (4)

Country Link
US (1) US20170307691A1 (fr)
EP (2) EP3001497A1 (fr)
CN (1) CN106463788A (fr)
WO (1) WO2016046246A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3447510A1 (fr) * 2017-08-23 2019-02-27 HILTI Aktiengesellschaft Détermination de la charge d'un accumulateur au moyen d'une machine d'outil
US20210376630A1 (en) * 2018-10-18 2021-12-02 Husqvarna Ab Tool Charging System

Family Cites Families (16)

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WO2009042857A2 (fr) * 2007-09-26 2009-04-02 Tesla Motors, Inc. Fonctionnement d'un véhicule électrique à autonomie étendue
JP2009081981A (ja) * 2007-09-27 2009-04-16 Sanyo Electric Co Ltd 充電状態最適化装置及びこれを具えた組電池システム
JP4893653B2 (ja) * 2008-02-19 2012-03-07 トヨタ自動車株式会社 車両、二次電池の充電状態推定方法および車両の制御方法
CN102035010B (zh) * 2009-09-29 2013-05-01 凹凸电子（武汉）有限公司 电池单元均衡电路及方法
WO2011078151A1 (fr) * 2009-12-24 2011-06-30 三洋電機株式会社 Procédé d'alimentation électrique, support d'enregistrement lisible par ordinateur et système de génération d'électricité
US8855840B2 (en) * 2010-02-03 2014-10-07 Toyota Motor Engineering & Manufacturing North America, Inc. Method and system for more efficient operation of plug-in electric vehicles
CN102844962B (zh) * 2011-01-06 2015-08-26 松下电器产业株式会社 碱性蓄电池的充放电控制方法以及电源系统
JP5935046B2 (ja) * 2011-07-12 2016-06-15 パナソニックＩｐマネジメント株式会社 蓄電池集合体制御システム
TW201331066A (zh) * 2011-10-10 2013-08-01 普羅泰拉公司 在固定路線應用程式下用於電池壽命最大化的系統及方法
JP5621818B2 (ja) * 2012-08-08 2014-11-12 トヨタ自動車株式会社 蓄電システムおよび均等化方法
US8515499B1 (en) * 2012-09-10 2013-08-20 Google Inc. Estimating remaining use time of mobile computing devices
US9651624B2 (en) * 2012-12-17 2017-05-16 Qualcomm Incorporated Systems and methods for state of charge estimation
EP2956784A4 (fr) * 2013-02-13 2016-10-26 Exide Technologies Procédé de détermination d'état de charge et de durée de vie restante d'une batterie
CN105026944B (zh) * 2013-03-07 2019-08-27 古河电气工业株式会社 二次电池状态检测装置及二次电池状态检测方法
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US20170013369A1 (en) * 2014-03-14 2017-01-12 Zpower, Llc. Battery charger communication system

Also Published As

Publication number Publication date
CN106463788A (zh) 2017-02-22
US20170307691A1 (en) 2017-10-26
WO2016046246A1 (fr) 2016-03-31
EP3001497A1 (fr) 2016-03-30

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