WO1995025285A1 - Circuit arrangement for testing a multiple-cell battery - Google Patents
Circuit arrangement for testing a multiple-cell battery Download PDFInfo
- Publication number
- WO1995025285A1 WO1995025285A1 PCT/DE1995/000349 DE9500349W WO9525285A1 WO 1995025285 A1 WO1995025285 A1 WO 1995025285A1 DE 9500349 W DE9500349 W DE 9500349W WO 9525285 A1 WO9525285 A1 WO 9525285A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- common
- cell
- display device
- circuit
- data
- Prior art date
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
- H01M10/48—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
-
- 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
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
-
- 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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
- H01M6/5044—Cells or batteries structurally combined with cell condition indicating means
-
- 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 invention relates to a circuit arrangement for checking a multi-cell battery according to the preamble of claim 1.
- Such a scarf do arrangement is described in DE 3702591 C2.
- individual cells or cell groups are each connected to their own measuring circuit, which is supplied with current by the network of the corresponding cell.
- the individual measured values are fed via optocouplers in accordance with scanning signals to a central point in a time-division multiplexing process on a common data bus line, from which they are fed to a central evaluation and display device.
- This system only provides a central evaluation, the power supply depends on the condition of the battery, and in the event of a total failure, values can no longer be transmitted. Decentralized direct evaluation and direct display on each individual cell or cell group is not possible.
- the invention is based on the problem of designing a circuit arrangement in accordance with the preamble of claim 1 in such a way that direct evaluation and display is made possible in each individual cell.
- the power supply should be independent of the cell to be checked.
- a separate evaluation circuit is provided on each cell, which is integrated with an associated measuring circuit.
- a separate display device is provided on each cell, to which the evaluated measured values are fed to the evaluation circuit.
- a common independent power supply is provided, which is connected via a coupling element and a common power supply line to each of the individual evaluation circuits.
- the combined evaluation circuit preferably has a memory device with a determination of the measurement date, such as in the form of a certifying device, which can store the chronological sequence of the individual measured variables and display and record them as required or on the basis of a cyclical scanning.
- the core of this combined evaluation circuit expediently forms an appropriately programmed microcontroller.
- One or more diodes which can either be off, on or flashing, can serve as simple display devices on each cell. For example, a red diode can light up in the event of undervoltage, a yellow diode in the event of overvoltage, and one or both diodes can flash if the maximum temperature is exceeded.
- the display values can be used for charging and discharging, i.e. the normal operation can be set differently.
- the chronological course of the malfunctions of the individual cells can also be determined and evaluated via an interface, for example using a simple PC, a portable notebook, etc. Then the set values can be reset , which happens automatically when the storage capacity is exhausted, e.g. in a few weeks.
- a central display, central storage and central evaluation can also take place via the common interface with the aid of the common data bus.
- the desired limit values for each individual cell can be changed centrally via the common interface.
- the data transmission to the external common display device can take place via separate cable feed per cell, via a common bus line with corresponding coupling elements and time ultiplex circuit, or via remote data transmission via modem devices or radio.
- the only figure shows the circuit diagram of a circuit device.
- each evaluation circuit is connected to a thermal sensor 32, 34, 36, 38, which is arranged at a suitable location within the cell, the cell wall, etc.
- each evaluation circuit contains a memory device for the temporal storage of the individual measured values up to a local call of the cell via PC etc. or up to a central call by an additionally provided external central control and display device 50.
- each Time counter device 13, 23, 33, 43
- each of the evaluation circuits 12, 14, 16, 18 has a red LED display diode and a yellow LED display diode as display devices, or is therefore a circuit moderately connected, which are designated on the four cells with 42, 43 or 44, 45 or 46, 47 or 48, 49.
- Each of the cells is connected in parallel via a coupling member 52, 54, 56, 58 to the power supply line 55 of a common independent mains power supply 53 which supplies a 16 kHz supply frequency to the evaluation circuit of each cell from 12 volt direct current.
- an RF transformer is provided as a coupling element 52, 54, 56, 58, which again supplies direct current for supplying the combined evaluation circuit 12-18 from this high-frequency voltage, which is expediently provided for the transmission.
- each individual evaluation circuit is additionally connected to a common data bus 60 which contains control commands such as query signals and one-part signals for the display limit values from a common interface 51 and a common one Control and display device 50, preferably combined with a common memory device and evaluation device, delivers to each individual evaluation circuit 12-18 of each individual cell.
- a further second coupling element 63, 65, 67, 69 is provided for the transmission of each individual evaluation position of each individual cell to this common interface 51, in the exemplary embodiment shown in the form of a converter RS-232.
- Optocouplers with electrical isolation are preferably used as such coupling elements.
- the first coupling elements of each individual cell are identified by 62, 64, 66, 68, the second coupling elements of each individual cell for the data output to the common data bus line 60 by 63, 65, 67, 69.
- the circuit arrangement shown enables both a direct display of the exceeding of limit values with regard to undervoltage, overvoltage or temperature by lighting or flashing of the two light-emitting diodes of each cell, which enables simple control in the case of a routinely carried out control aisle, and also via the central one Busleitüng 60 a remote display and / or remote evaluation. You can see this bus line preferably also in the basic state, for example together with the common power supply 53, a decentralized evaluation and setting of the values for each individual cell can also take place on the spot.
- the circuit arrangement shown provides a measuring device on each individual cell, since a measurement of the voltage of the entire battery, for example, can give no indication of the quality of the battery and thus of the risk of a total failure in the near future.
- the envisaged single cell measurement enables early detection of defective cells in the overall system, which can identify the risk of an early total failure of this cell, which could lead to a sudden total failure of the system. In this way, a timely replacement of this damaged battery is possible in order to avoid the failure of very important energy supplies, such as for example all types of emergency power supplies that must be reliably operational for many years. This applies, for example, to modern radio telephone systems, public facilities such as hospitals, cold stores, but also to main supplies such as lighting devices and radio devices or power supplies operated exclusively by batteries, far away from wired power networks.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95913024A EP0704059A1 (en) | 1994-03-15 | 1995-03-14 | Circuit arrangement for testing a multiple-cell battery |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4408740.3 | 1994-03-15 | ||
DE4408740A DE4408740C1 (en) | 1994-03-15 | 1994-03-15 | Circuit arrangement for checking a multi-cell battery |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995025285A1 true WO1995025285A1 (en) | 1995-09-21 |
Family
ID=6512835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/000349 WO1995025285A1 (en) | 1994-03-15 | 1995-03-14 | Circuit arrangement for testing a multiple-cell battery |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0704059A1 (en) |
DE (1) | DE4408740C1 (en) |
WO (1) | WO1995025285A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19524616C2 (en) * | 1995-07-06 | 1998-02-05 | Telefunken Microelectron | Method for testing overtemperature detection in an integrated circuit |
FR2740264B1 (en) * | 1995-10-24 | 1997-12-05 | Em Microelectronic Marin Sa | ELECTRIC BATTERY MANAGEMENT DEVICE |
DE19545833B4 (en) * | 1995-12-08 | 2005-10-13 | Bayerische Motoren Werke Ag | Battery with several single cells connected in series |
DE19605481C1 (en) * | 1996-02-14 | 1997-06-12 | Siemens Ag | On-line battery measurement module for block voltage measurement of several block batteries |
DE29611978U1 (en) * | 1996-07-10 | 1997-02-13 | Muntermann, Axel, 35583 Wetzlar | accumulator |
DE29612870U1 (en) * | 1996-07-25 | 1996-10-17 | Mack, Helmut, 72764 Reutlingen | Arrangement for charging and testing battery packs |
NO971841L (en) * | 1997-04-22 | 1998-10-23 | Einar Gotaas | Method of monitoring battery operation |
CA2332452C (en) | 1998-05-20 | 2009-09-08 | Osaka Gas Company Limited | Nonaqueous secondary cell and method for controlling the same |
DE102010007076A1 (en) | 2010-02-06 | 2011-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 80686 | Electric energy storage |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2842817B1 (en) * | 1978-09-30 | 1979-05-17 | Siemens Ag | Determination of the state of charge of a battery |
US4198597A (en) * | 1978-08-23 | 1980-04-15 | United Technologies Corporation | Negative cell detector for a multi-cell fuel cell stack |
US4388584A (en) * | 1981-10-23 | 1983-06-14 | Dahl Ernest A | Battery monitoring and charger control system |
US4707795A (en) * | 1983-03-14 | 1987-11-17 | Alber Engineering, Inc. | Battery testing and monitoring system |
US4871956A (en) * | 1988-02-18 | 1989-10-03 | Power Conversion Inc. | Method and apparatus for cell monitoring and control |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3702591A1 (en) * | 1987-01-29 | 1988-08-11 | Sonnenschein Accumulatoren | CIRCUIT TO CONTINUOUSLY CHECK THE QUALITY OF A MULTI-CELL BATTERY |
-
1994
- 1994-03-15 DE DE4408740A patent/DE4408740C1/en not_active Expired - Fee Related
-
1995
- 1995-03-14 EP EP95913024A patent/EP0704059A1/en not_active Withdrawn
- 1995-03-14 WO PCT/DE1995/000349 patent/WO1995025285A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198597A (en) * | 1978-08-23 | 1980-04-15 | United Technologies Corporation | Negative cell detector for a multi-cell fuel cell stack |
DE2842817B1 (en) * | 1978-09-30 | 1979-05-17 | Siemens Ag | Determination of the state of charge of a battery |
US4388584A (en) * | 1981-10-23 | 1983-06-14 | Dahl Ernest A | Battery monitoring and charger control system |
US4707795A (en) * | 1983-03-14 | 1987-11-17 | Alber Engineering, Inc. | Battery testing and monitoring system |
US4871956A (en) * | 1988-02-18 | 1989-10-03 | Power Conversion Inc. | Method and apparatus for cell monitoring and control |
Also Published As
Publication number | Publication date |
---|---|
EP0704059A1 (en) | 1996-04-03 |
DE4408740C1 (en) | 1995-07-20 |
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