EP3947015A1 - Verfahren zum betreiben eines schienenfahrzeugs und schienenfahrzeug - Google Patents
Verfahren zum betreiben eines schienenfahrzeugs und schienenfahrzeugInfo
- Publication number
- EP3947015A1 EP3947015A1 EP20746899.2A EP20746899A EP3947015A1 EP 3947015 A1 EP3947015 A1 EP 3947015A1 EP 20746899 A EP20746899 A EP 20746899A EP 3947015 A1 EP3947015 A1 EP 3947015A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- value
- internal resistance
- stored
- tuple
- current
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 210000004027 cell Anatomy 0.000 claims description 12
- 210000000352 storage cell Anatomy 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 21
- 238000004364 calculation method Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000002123 temporal effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
-
- 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- 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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the invention relates to a method for operating a rail vehicle and a rail vehicle.
- the energy storage devices enable autonomous operation on short sections of the route without additional on-board energy sources or overhead line supply or temporarily ensure a lower power consumption from the contact wire.
- Such energy storage devices are constantly charged and discharged again during operation. Due to the aging process to which the energy storage devices are subject, they have to be at the end of their service life. Ion batteries, increases, ie the energy storage has an increased internal resistance, the internal resistance is an indicator of the State of Health (SoH) of the energy storage (s).
- SoH State of Health
- the invention is based on the object of specifying an improved method for more precisely determining the internal resistance and thus the state of aging, that is to say the SoH, of an energy storage device.
- the solution according to the invention has the advantage that, due to the cyclical determination of the internal resistance of an ES during the operation of a rail vehicle, operational interruptions in this regard are no longer necessary, which results in corresponding cost savings. Furthermore, the development of the value of the internal resistance over time can be recorded, tracked and documented more or less continuously, so that the respective state of aging reached, i.e. the SoH, of the energy storage device can be derived from this and thus a condition-based exchange with a significantly higher rate that is necessary at the end of the service life Accuracy can be made.
- the ES consists of at least one memory cell (SZ) with at least one first sensor for measuring the electrical. Voltage and we least a second sensor for measuring the electr.
- the current and the voltage that is applied when charging and discharging the SZ and the current that flows when charging and discharging the SZ is measured permanently by means of the first and second sensors. It is thus possible at any time, if necessary, for example for evaluation and / or monitoring purposes to access the current current and / or voltage values of the respective storage cells of the energy store.
- the ES is made up of one or more memory cells or memory modules connected in series and / or in parallel.
- the storage cells of the ES are preferably designed as double-layer capacitor cells or double-layer capacitor modules (DSK), as they can store and release charges very quickly due to their high power density and also have high cycle stability with regard to charging / discharging processes. This is particularly advantageous responsible for energy recovery, the so-called recuperation, for example of braking energy.
- the method according to the invention is not limited in use to double-layer capacitors, but can also be used for batteries, in particular Li-ion batteries, but also for all possible other electrical and electrochemical energy stores.
- any value of the measured voltage is stored as the first trigger voltage value Uo c by means of a data storage device that can be connected to the ES and continuously compared with the measured voltage.
- This value serves as a very easy-to-detect output value for the first determination of the internal resistance.
- the first trigger voltage value can be determined or parameterized, the corresponding value advantageously being taken from the range of values that the measured voltage assumes during operation, i.e. during the cyclical discharging or charging processes.
- the trigger voltage value is in principle a measure for the open circuit voltage Uo c ( t) of the ES, which indicates the voltage across the energy store without load, i.e. without the voltage drop across the internal resistance.
- the data memory is particularly preferably integrated into the energy store.
- the value of the ES current measured at this point in time is stored from both values, the trigger voltage value on the one hand and of the measured value of the current on the other hand, the value of the stored electr.
- Energy E and the value of the square of the current I 2 dt are determined and stored as value tuples in the data memory.
- the first stored value tuple consists of the speaking measured value of the current, the value of the stored electr. Energy E and the value of the square of the
- the internal resistance of the ES is determined from a first and a second value tuple and optionally stored, the internal resistance being derived from the quotient of the difference between the value of the electrical.
- Energy E of the second and the first tuple of values and the difference between the value of the square of the current I 2 dt of the second and the first tuple is determined.
- the internal resistance is particularly preferably determined cyclically from two immediately successive value tuples and optionally stored, with the currently saved value tuple being used as the second value tuple and the value tuple saved immediately before as the first value tuple each time the internal resistance is determined again.
- the current internal resistance Ri, n + i is then calculated according to the following relationship using software and / or hardware.
- the internal resistance is determined cyclically from two stored value tuples, which are stored at a constant distance from one another with respect to the chronological sequence, the value tuple stored later as the second value tuple and the value tuple stored earlier as the first value tuple. For example, only the respective n + 2. , n + 3., etc. Value tuples used to determine the respective internal resistance.
- the current internal resistance Ri, n + i is then calculated using software and / or hardware in accordance with the following relationship.
- the internal resistance determined normally corresponds to the total internal resistance of the series and / or parallel connection.
- a second trigger voltage value is obtained from the difference between the first trigger voltage value and the product of the current internal resistance and the measured value of the current of the second value tuple, which was used to determine the current internal resistance, which replaces the first trigger voltage value.
- a subsequent trigger voltage value is determined cyclically from the difference between the previous trigger voltage value and the product of the current internal resistance and the measured value of the current of the current value tuple, which replaces the previous trigger voltage value.
- the value of the trigger voltage is a measure of the no-load voltage Uo c ( t) of the ES, which, however, cannot be measured directly, the respective cyclical re-determination of the trigger voltage value using the updated value of the internal resistance, and the replacement of the previous trigger voltage value, the value for the no-load voltage Uo c ( t) and thus each subsequent trigger process more precisely. This in turn results in a more precise calculation of the internal resistance, so that the SoH can also be determined more and more precisely.
- the current trigger voltage value or the no-load voltage Uoc, n + i is determined according to the following relationship and can be calculated using software and / or hardware.
- Another particularly preferred embodiment of the invention takes into account a balancing resistance when determining the internal resistance.
- DSK cells or DSK modules are used to form an energy store, the DSK cells or modules being wired with a parallel resistor for balancing.
- a Balancing resistor compensates for differences in the individual properties of the components used.
- a balancing resistor generates a corresponding loss energy E sym , which falsifies the determination of the internal resistance. Since the properties and in particular the dimensioning of the balancing resistor (s) are known, its or their losses can be estimated.
- the total symmetry resistance R sym / ges can thus be determined according to the following relationship.
- k is the number of DSK cells or DSK modules connected in series and I is the number of branches of DSK cells or DSK modules connected in parallel.
- the corresponding energy loss E sym is then calculated according to the following relationship and can also be calculated using software and / or hardware.
- the losses E sy m are also stored with each trigger process.
- the calculation of the current internal resistance is then determined according to the following relationship and can also be calculated using software and / or hardware.
- the state of aging of the ES is derived from the internal resistance and a warning is triggered when a predeterminable value is reached.
- the properties and thus the value range of the increased internal resistance of an aged energy storage device are known.
- a corresponding value can thus be stored as a comparison value in the data memory of a battery management system used.
- the intended age, the SoH is reached and the relevant ES is then to be exchanged in order to advantageously avoid an uncontrolled exchange process at a later point in time and thus an unscheduled interruption of operations.
- the internal resistance determined cyclically according to the method according to the invention is accordingly permanently compared with the stored comparison value and a corresponding warning device is triggered when the stored value is reached.
- a corresponding note can be displayed for the driver of the rail vehicle.
- the corresponding warning device and a warning issued by the warning device or a corresponding note include all possible types, for example on an optical or acoustic basis, without restriction to a specific applicable principle and / or the execution of a specific warning device.
- Another, very particularly preferred embodiment of the invention is a rail vehicle with means for carrying out the method according to the invention.
- the method described makes it possible to determine the internal resistance of an energy storage device during operation without influencing operation.
- the necessary measuring equipment is usually already installed and does not generate any additional costs. ten, whereby the calculation can, for example, be implemented inexpensively in software and / or hardware.
- Another advantage is the quasi-continuous recording of the internal resistance, so that with the aid of existing storage temperatures, even dependencies on temperature and internal resistance can be determined.
- the development of the internal resistance over time can particularly advantageously be tracked by means of the continuous recording, whereby the current SoH of the relevant energy storage device can be derived and thus allows a status-based service or exchange. This makes it possible to operate the energy storage device until immediately before the end of its service life and to minimize costs, in particular replacement costs. Further possibilities for using the determined internal resistance result in the control or regulation of an air conditioning system for the energy store, which can reduce energy consumption or increase the service life of the energy store.
- FIG. 1 shows an equivalent circuit diagram of an energy store (1) with a storage cell (2)
- Fig. 2 shows an equivalent circuit diagram of an energy store (10) with two storage cells (2, 12) and corresponding ones
- Fig. 3 shows a flow diagram for the basic mode of operation of the method according to the invention.
- FIG. 4 shows a rail vehicle (50) with an energy store (52).
- FIG. 1 shows an equivalent circuit diagram of a double-layer capacitor (DSK) energy storage device (1) with a single storage cell (2).
- a DSK energy store (1) is made up of one or more such DSK storage cells (2) connected in series or in series.
- the equivalent circuit diagram of the energy store (1) in Fig. 1 shows the associated equivalent internal resistance (3) and a DSK storage cell (2) connected in series, which together determine the total voltage U Es (7) of the energy store (1).
- the total voltage (7) of the energy store (1) is measured permanently with at least one voltage sensor (4) and the current of the energy store (1) with at least one current sensor (5).
- FIG. 2 shows an equivalent circuit diagram of a double-layer capacitor (DSK) energy store (10) with two storage cells (2,
- the voltage of the energy store (10) is measured continuously from at least one voltage sensor (14) and the current of the energy store is measured continuously by at least one current sensor (15).
- Fig. 3 shows a flowchart for the basic function of the method according to the invention for cyclical determination of the internal resistance (3, 13) of an energy store
- Step 22 at any point in time during operation any value of the measured voltage is stored as the first trigger voltage value by means of a data memory (54) that can be connected to the ES (1,10,52) and which in step 24 is subsequently continuously matched with the measured Voltage is compared.
- the data memory (54) can also be integrated into the ES (1,10,52).
- the first trigger voltage value can also be specified or parameterized separately in step 22.
- step 26 the process continues with step 24. If the measured voltage value agrees with the first trigger voltage value (step 26), a branch is made to step 28 and the value of the current of the ES (1,10,52) measured at the time of the agreement in accordance with step 26 is stored from both values of the Value of the stored electr. Energy E and the value of the square of the current I 2 dt are determined and each successively stored as different value tuples. The first stored value tuple consists of the corresponding measured value of the current, the value of the stored electr. Energy E and the value of the square of the
- step 30 it is checked whether at least two value tuples are present. If there is not yet a second tuple of values, the process branches back to step 24 and the method continues until the measured voltage value of the energy storage device (1,10,52) matches the trigger voltage value for the second time (step 26). After the second value tuple has been saved in accordance with step 28 (see above), the
- Step 32 then the internal resistance (3,13) of the ES (1,10,52) is determined from the first and second value tuples and also stored in the data memory (54), the internal resistance being (3,13) from the quotient of the difference the value of the electr.
- Energy E of the second and the first value tuple and the difference between the value of the square of the current I 2 dt of the second and the first value tuple is calculated.
- a branch can be made back to step 24 in step 34 and every time the measured voltage agrees with the first Trigger voltage value according to the previously described steps 24 to 34, the corresponding values tetupel each, according to the time sequence, successively stored in the connected or possibly also integrated data memory (54).
- the further value tuples are made up of the corresponding values at the respective later times at which the measured voltage again agrees with the first trigger voltage value and are also designated accordingly.
- the current internal resistance (3,13) of the ES (1,10,52) is then made up of two directly consecutive value tuples, namely the currently saved and the immediately preceding one
- the stored tuples of values are redefined and saved so that the development of the internal resistance (3.13) over time is documented virtually without gaps and can therefore be evaluated immediately after the internal resistance (3.13) has been recalculated, but can also be tracked if necessary cash can be evaluated separately at a later date.
- two value tuples can alternatively be used in the cyclical calculation of the internal resistance (3,13) according to the previously described steps of the method, which do not follow one another directly, but which were stored at a constant distance from one another with regard to the sequence
- the value tuple saved later is used as the second value tuple and the value tuple saved earlier is used as the first value tuple.
- the respective n + 2. , n + 3., etc. stored value tuples are used to determine the respective internal resistance (3,13).
- a new trigger voltage value can additionally be calculated or set cyclically in step 36 via step 34, which is then branched back to step 22 to the previous one Replaces trigger voltage value and continues the method according to the invention from there, as described above.
- the trigger voltage value is a measure of the open circuit voltage Uo c ( t) of the ES, which itself cannot be measured directly, the respective cyclical redetermination of the trigger voltage value using the currently recalculated value of the internal resistance (3.13 ), and the subsequent replacement of the previous trigger voltage value, the value for the no-load voltage Uo c ( t) and thus each subsequent trigger process, i.e. the comparison of the measured voltage of the ES (1,10,52) with the respectively valid trigger voltage value, more precise. This also makes every subsequent calculation of the internal resistance (3.13) more precise, so that ultimately the determination of the SoH also becomes more and more precise.
- the new, for example, the second trigger voltage value is calculated in step 36 from the difference between the first trigger voltage value and the product of the internal resistance currently calculated at this point in time (3,13) and the associated measured value of the current of the second value tuple, using means whose internal resistance (3.13) was calculated, which then takes the place of the first trigger voltage value according to step 22 and replaces the first trigger voltage value.
- the second trigger voltage value or the corresponding no-load voltage Uo c , 2 is then determined according to the following relationship
- step 34 the value of the currently calculated internal resistance (3.13) can also be compared with a previously specified value for the internal resistance (3.13) that reflects the state of aging, ie the SoH of the ES (1,10,52) identifies, and if they match, triggers a notice or a warning by means of a connected warning device, for example shows a corresponding acoustic or visual notice to the driver of the rail vehicle (50).
- the corresponding warning device and a warning issued by the warning device or a corresponding note include all possible types, for example on an optical or acoustic basis, without restriction to a specific applicable principle and / or the implementation of a specific warning device.
- FIG 4 shows a rail vehicle (50) with an energy storage device (52) in which the internal resistance (3, 13) of the energy storage device (52) is determined cyclically during operation according to the method according to the invention.
- a data memory (54) is integrated into the energy store (52).
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019211142.4A DE102019211142A1 (de) | 2019-07-26 | 2019-07-26 | Verfahren zum Betreiben eines Schienenfahrzeugs und Schienenfahrzeug |
| PCT/EP2020/069956 WO2021018582A1 (de) | 2019-07-26 | 2020-07-15 | Verfahren zum betreiben eines schienenfahrzeugs und schienenfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3947015A1 true EP3947015A1 (de) | 2022-02-09 |
Family
ID=71842639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20746899.2A Withdrawn EP3947015A1 (de) | 2019-07-26 | 2020-07-15 | Verfahren zum betreiben eines schienenfahrzeugs und schienenfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3947015A1 (de) |
| DE (1) | DE102019211142A1 (de) |
| WO (1) | WO2021018582A1 (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207659B4 (de) * | 2001-02-23 | 2006-09-28 | Yazaki Corp. | Verfahren und Vorrichtung zum Schätzen einer Klemmenspannung einer Batterie, Verfahren und Vorrichtung zum Berechnen einer Leerlaufspannung einer Batterie sowie Verfahren und Vorrichtung zum Berechnen der Batteriekapazität |
| DE112016006166T5 (de) * | 2016-01-06 | 2018-09-20 | Gs Yuasa International Ltd. | Zustandsschätz-Vorrichtung und Zustandsschätz-Verfahren |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2012091077A1 (ja) * | 2010-12-28 | 2014-06-05 | 三洋電機株式会社 | 電池の劣化度の検出方法 |
| CN103392133A (zh) * | 2011-03-07 | 2013-11-13 | 株式会社日立制作所 | 电池状态推定方法和电池管理系统 |
| JP2014231988A (ja) * | 2011-09-27 | 2014-12-11 | 三洋電機株式会社 | バッテリシステム、充電状態推定装置、電動車両、移動体、電力貯蔵装置および電源装置 |
| DE102013208556A1 (de) * | 2013-05-08 | 2014-11-13 | Siemens Aktiengesellschaft | Verfahren für ein Aufheizen einer Energiespeicheranordnung und Energiespeicheranordnung |
| CN105467324B (zh) * | 2014-09-30 | 2020-03-03 | 株式会社杰士汤浅国际 | 电池劣化判定装置、电池劣化判定方法以及电池组 |
| DE102014224922A1 (de) * | 2014-12-04 | 2016-06-09 | Bombardier Transportation Gmbh | Schienenfahrzeug mit elektrischem Bordnetz, Bordnetzbatterie und Batterieladegerät, sowie Verfahren zum Betreiben des Schienenfahrzeugs |
| JP6569540B2 (ja) * | 2016-01-13 | 2019-09-04 | 株式会社Gsユアサ | 車載電源システムおよびこれに含まれるバッテリの状態検知方法 |
| DE102017011584A1 (de) * | 2017-11-13 | 2019-05-16 | Belectric Gmbh | Batteriespeichersystem |
| JP6933109B2 (ja) * | 2017-11-29 | 2021-09-08 | トヨタ自動車株式会社 | 二次電池の劣化状態推定方法および二次電池システム |
| DE102017221982A1 (de) * | 2017-12-06 | 2019-06-06 | Continental Automotive Gmbh | Fahrzeugbordnetz und Verfahren zum Betreiben eines Fahrzeugbordnetzes |
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2019
- 2019-07-26 DE DE102019211142.4A patent/DE102019211142A1/de not_active Withdrawn
-
2020
- 2020-07-15 WO PCT/EP2020/069956 patent/WO2021018582A1/de not_active Ceased
- 2020-07-15 EP EP20746899.2A patent/EP3947015A1/de not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207659B4 (de) * | 2001-02-23 | 2006-09-28 | Yazaki Corp. | Verfahren und Vorrichtung zum Schätzen einer Klemmenspannung einer Batterie, Verfahren und Vorrichtung zum Berechnen einer Leerlaufspannung einer Batterie sowie Verfahren und Vorrichtung zum Berechnen der Batteriekapazität |
| DE112016006166T5 (de) * | 2016-01-06 | 2018-09-20 | Gs Yuasa International Ltd. | Zustandsschätz-Vorrichtung und Zustandsschätz-Verfahren |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2021018582A1 * |
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| Publication number | Publication date |
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| WO2021018582A1 (de) | 2021-02-04 |
| DE102019211142A1 (de) | 2021-01-28 |
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