EP3928410A1 - Vorrichtung und verfahren der überwachung (monitoring) und des ausgleichens von blockakkumulatoren - Google Patents
Vorrichtung und verfahren der überwachung (monitoring) und des ausgleichens von blockakkumulatorenInfo
- Publication number
- EP3928410A1 EP3928410A1 EP20712010.6A EP20712010A EP3928410A1 EP 3928410 A1 EP3928410 A1 EP 3928410A1 EP 20712010 A EP20712010 A EP 20712010A EP 3928410 A1 EP3928410 A1 EP 3928410A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- block
- temperature
- accumulators
- accumulator
- odd
- 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.)
- Pending
Links
Classifications
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- 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 the field of electrical engineering. It can be used in devices that are intended for continuous automatic control and for balancing the state of charge of accumulators connected in parallel and in series in a block.
- the block is placed in a vehicle, for example in a hybrid vehicle or in an electric vehicle.
- the RU 2626378 describes a device for automatic control and for balancing the state of charge of the accumulator block of the combination energy system.
- the device has the following elements:
- microcontroller (a microcontroller) connected to a control block for voltage deviations from the standard value. It is connected by an information rail with a digital display of the ordinal numbers of the block accumulators with problems and a commutation control block.
- the commutation control block is arranged with a possible consequent series connection of the block accumulators on two electrical rails.
- the shortcomings of the known device include the impossibility of permanent control and equalization of the state of charge of each block battery and the complexity of solving the problem of simultaneous temperature and voltage control of each battery when there is voltage in the battery of the battery block (AKB).
- the voltage reaches several hundred volts.
- a rechargeable battery AKB of the electric vehicle which is a parallel-series cell connection.
- the accumulator cells are connected horizontally in a parallel, and the resulting rows are connected in series,
- control system that monitors and controls the overall functioning of various vehicle sub- systems. This system also monitors the state of charge and the rate of discharge both during vehicle operation and when idling. The controller compares the measured voltages with each other, for example by setting a maximum permissible voltage difference.
- AKB can reach several hundred volts) and the low-voltage parts of the voltage, temperature and data control.
- the high-voltage accumulator blocks are divided into several series-connected modules made of parallel-series accumulators. They are connected in a hermetic AKB block. This results in additional technical difficulties and a reduction in security.
- the object of the invention is to: increase the safety and service life of the block of parallel-series-connected accumulators,
- the state of charge is balanced by address and proportionally to the degree of imbalance of each accumulator, both in the case of overcharging and weak charging (according to the temperature of each AKB accumulator);
- the balancing takes place by means of pulse currents with the setting value greater than one ampere with an efficiency of more than 90%.
- a power source in the form of a block of the parallel-to-serial accumulator link
- the microcontroller is connected to the electrical data measurement block. Through the information rail it is connected to a digital display of the block accumulators with problems of the electrical data and to the input of the commutation control block.
- Each accumulator of the accumulator block is supplied with a resistor of the same small size and with a temperature sensor, which are electrically connected with connections to the positive pole of each accumulator.
- a parallel accumulator connection in the block is implemented for each horizontal row of accumulators through the connection (V) of the second resistor connections of the same small size in the overall connection of the row of block accumulators.
- the resulting rows are connected in series to form a single accumulator block.
- These are (m) parallel connected accumulators gates forming rows (n) after the series connection and the total number (mxn).
- the accumulator block is equipped with temperature measuring sensors in the volume of the hermetic body, which are arranged evenly in its inner volume. Each of them is electrically grounded with a connector.
- the accumulator block is equipped with a commutation block for the temperature sensors. It contains keys of the temperature sensors with control windings, which are arranged in the form of (m) keys of the temperature sensors connected in parallel. They form odd and even rows after the series connection with the total number m * (n + 1);
- the row (n + 1) is arranged for the measurement of the ambient temperature within the hermetic body of the accumulator block.
- the accumulator block supplies:
- Rails of temperature measurement of accumulators They connect the outputs of the connection block of the temperature sensors with inputs of the odd and even blocks of the temperature measurement of the accumulators;
- Blocks for measuring the temperature of the accumulators in odd and even rows contain a pulse transformer with two serially connected primary windings and a secondary winding, diode blocks with capacitors;
- a digital indicator of a battery block with temperature problems Displays of the temperature distribution of odd and even rows (m) of the accumulators; they reflect a hystogram of the temperature distribution in the rows in which there are accumulators with temperature problems.
- a control block consists of a step-up and a step-down DC voltage converter.
- a switching device consists of two switch-on keys; they are controlled by a microcontroller.
- a block for measuring electrical data and for voltage equalization consists of a rectifier on a pulse transformer with a primary winding, two secondary winding and two single-digit keys in the
- Rectifier chain An AC amplifier is connected to the rectifier output.
- the commutation block of the accumulators is designed with the possibility of commutation of common series connections with measuring rails for electrical data.
- Odd and even key rows of the temperature sensors are connected to respective temperature sensors of odd and even rows of the block accumulators and with other connections to the measuring rails of the temperature of the accumulators corresponding to odd and even rows.
- the second input of the temperature measuring block of uneven rows of temperature sensors is connected to the measuring rail (a) for electrical data.
- the second input of the temperature measuring block with straight rows of temperature sensors is connected to the measuring rail (b) for electrical data.
- the outputs of the temperature measuring blocks of odd and even temperature sensors are connected to the inputs of the measuring amplifier and the microcontroller.
- connections of the control key windings of the temperature sensors are connected to the outputs of the commutation control block with a connection option. Other connections are connected to corresponding inputs of analog commutators.
- Control key windings of odd and even rows of the temperature sensors are connected to the inputs of the analog commutator of odd and even rows.
- the commutation control block odd and even analog commutators, digital displays of temperature problems and problems with electrical data from block batteries, displays of the temperature distribution of odd and even rows of parallel-connected (m) accumulators after the serial connection are connected to the microcontroller by information rails. They are controlled by the microcontroller.
- the control block is connected to the h connection of the commutation block of the accumulators and the microcontroller via inputs and to the switching device via outputs.
- the switching device is connected to the microcontroller via inputs and to the control block and the measuring block for electrical data and voltage equalization via outputs,
- the measuring block for electrical data and voltage equalization is connected to the rails for electrical data (a) and (b), Through the output it is connected to the microcontroller and to the switching device through the input and the output.
- Each of the temperature sensors is arranged within the body of the corresponding accumulator.
- Temperature sensors are designed in the form of thermistors with a high internal resistance:
- Resistors of small size in the accumulator block are fuses.
- the device according to the invention ensures that the block accumulators are automatically monitored and the state of charge and the temperature of the accumulators are controlled.
- the accumulators are arranged in parallel in series.
- the electrical data measurement block and the voltage equalization generate a voltage.
- the voltage is proportional to the mean value for all block accumulators.
- the voltage values are determined; they are proportional to the difference between the mean value in the accumulator block and the voltage of the accumulator with problems in this parameter.
- the accumulator temperatures are controlled by temperature sensors. In the device according to the invention it thus follows that:
- the parallel connection of the accumulators in a block is carried out for each horizontal row by the union of second resistor connections of the same small size in the overall line of a row of block accumulators.
- the resulting rows are connected in series to form a single accumulator block.
- the temperature of the accumulators in the block and the ambient temperature within the hermetic body are controlled by temperature sensors which are arranged on each accumulator, and by temperature sensors which are arranged uniformly in the inner volume of the hermetic accumulator block.
- each accumulator in series connected rows of the block is carried out by connecting the temperature sensors to the key connections of the rows of temperature sensors.
- connection sequence of the temperature sensors of each accumulator of the odd and the next even row is determined by simultaneous interrogation of the odd and the even analog commutator of the key control windings
- the key control windings of the temperature sensors are queried by odd and even analog commutators, only those keys of the temperature sensors whose control windings are connected to the currently active outputs of the commutation control block close.
- the control of the series switching of the outputs of the commutation control block and the series switching of the inputs of odd and even analog commutators are carried out synchronously by the microcontroller through information rails.
- the clock frequency of the query of the analog commutators exceeds the query frequency of the commutation control block in proportion to the number of accumulators in the series.
- Odd and even key rows of the temperature sensors are connected to the first inputs of the odd and even temperature measuring block by measuring rails for the accumulator temperature (B) and (r).
- the second inputs of the temperature measuring blocks of these rows of temperature sensors are each connected to measuring rails for the electrical data (a) and (6).
- a voltage is generated at the outputs of the temperature measuring blocks in odd and even rows of the block accumulators. It is proportional to the temperature in all odd and even battery rows.
- the output voltage is transmitted to the inputs of the microcontroller and the measuring amplifier.
- the measuring amplifier generates an overall signal for the temperature of odd and even rows of block accumulators and is then also transmitted to the microcontroller for processing.
- a statistical signal processing on the temperature of odd and even rows of the block accumulators is carried out, and by a program a tax influence is exercised, which affects the duration of the equalization pulses in the event of an imbalance.
- a statistical mean value and a stray field of the temperature in the controlled rows of block accumulators are determined mathematically.
- the average temperature is calculated and analyzed and compared with the average temperature of the odd and even rows of the block accumulators and checked for permissible deviations in the average temperatures of the environment within the specified limits.
- the microcontroller shows the number of an accumulator with temperature problems on the digital display, in the event of an impermissible temperature difference in every odd and even accumulator row.
- the temperature distribution indicators of odd and even rows of accumulators are displayed by the microcontroller hystograms of the temperature distribution in odd and even rows which contain accumulators 15 with temperature problems.
- the control block ensures the amplitude control of the compensation voltage in the event of overcharging and weak charging in relation to the current flowing through the charging system.
- the equalizing current supply is carried out in the event of overcharging with one key and in the event of weak charging with another key for a period of time which is proportional to the imbalance value and the temperature.
- the unbalance voltage is measured by the measurement and voltage compensation block, and the voltage compensation pulse is generated with a duration that is proportional to the unbalance and temperature amplitude.
- the amplitude is proportional to the power consumption with a consequent serial query of the block accumulators;
- the serial number of a number of block accumulators with problems of electrical data and the type of fault (overcharge and weak charge) are displayed on the digital display of electrical data.
- the last row of the temperature sensors which is arranged within the hermetic body of the accumulator block, measures the average ambient temperature within the accumulator body.
- Fig. 1 is a block diagram of the device for continuous automatic monitoring and balancing of the block accumulators ren,
- Fig. 2 oscillograms for checking electrical data and temperature control 5
- the device of the present invention includes:
- a power source in the form of a block (m) of parallel-connected accumulators 1 (AKB) arranged in a hermetic body. They form the rows of the series connection with the total number (m * n) * .
- mulators are electrically connected through some terminals a resistor of small size and a temperature sensor (z. B. a thermoresistor with a large internal resistance);
- VLS consumption and charging system 2
- the AKB has a connection from the h series for the connection with the control block 21 (SB) to compensate for overloaded and weakly charged
- VLB current flowing through 2
- the commutation block of the accumulators 3 contains:
- n + 1 single-digit switch-on key with low internal resistance (hereinafter in the text: key with low internal resistance) and with control windings. 0 They are connected in pairs to the electrical data measuring rails 4 (a), 5 (b), n series-connected battery rows.
- the key control windings with low internal resistance are connected to the corresponding outputs of the commutation control block 7 (KSB) through some connections.
- Each row of the AKB accumulators is connected to the second small-sized resistor connections in an overall cable of an accumulator row.
- ⁇ a measuring bar for electrical data 4 (a), to which all cables of the series-connected rows of AKB accumulators with odd numbers are connected;
- the commutation block of the temperature sensors 6 contains a single-digit switch-on key for the temperature sensors (referred to below as the temperature sensor key) with control windings. They are arranged in the form of 0 (m) parallel-connected keys of the temperature sensors, which form odd and even rows of the series connection with a total number mx (n + 1) * ' ;
- 5 ⁇ n + 1 row is arranged for the measurement of the ambient temperature inside the hermetic accumulator body.
- All temperature sensors which measure the temperature of the accumulators of odd and even AKB rows are connected to the measuring rails 10 (B) and 1 1 (r) of the temperature of the accumulators by odd and even key rows of the temperature sensors.
- each key row of the temperature sensors some connections are connected in the overall cable. All odd rows are connected to the measuring bar of the temperature of the accumulators 10 (B). All even rows are connected to the measuring bar of the temperature of the accumulators 11 (r) .5
- the keys of the temperature sensors are connected to the other connections of the temperature sensors, which are arranged in accumulators of every odd and even row through the other connections. •
- the other connections of the control windings of odd and even keys of the temperature sensors are connected to the inputs of the odd and even analog commutators 8 (AK U ) and 9 (AK g ).
- the commutation control block 7 is a double demultiplexer for 5 (n) outputs each. They are correspondingly connected to one another with a total number of outputs of n + 1 for controller 3 (KBA) and doubled by the demultiplexor for (n) outputs for controller 6 (KBTS).
- the measuring bar for the temperature of the accumulators 10 (B) is connected to the overall connections of the key rows of the temperature sensors of the commutation block of the temperature sensors of only odd AKB rows.
- the measuring bar for the temperature of the accumulators 11 (r) is connected to the overall connections of the key rows of the temperature sensors of the commutation block of the temperature sensors of even AKB rows.
- the temperature measuring block 13 (TMBu) of every uneven row of the AKB-20 accumulators has: a pulse transformer with two series connected primary windings and a secondary winding, a diode block with capacitors.
- the temperature measuring block 14 (TMB g ) of every uneven row of the AKB accumulators has: a pulse transformer with two series-connected primary windings and a secondary winding, a diode block with capacitors;
- MV measuring amplifier
- DAT digital display 16
- the display 17 (Dtu) of the temperature distribution of uneven rows of the AKB accumulators shows an accumulator with temperature problems.
- the display 18 (Dt g ) of the temperature distribution of even rows of the accumulators shows an accumulator with temperature problems.
- the control block 19 (SB) consists of a step-up and a step-down DC / DC voltage converter (converter). It ensures the change in size of the compensation voltage in the event of overcharging and weak charging (proportional to the current flowing through block 2 (VLB)).
- the switching device 20 (SV) consists of two (switch-on?) Keys K1 and K2
- the measuring block 21 (MBA) of electrical data and the voltage equalization consists of a rectifier on a pulse transformer with a primary winding, two secondary windings and two single-digit keys in the rectification chain. An AC amplifier is connected to the rectifier output.
- the present device works as follows:
- the odd and even analog commutator 8 (K u ) and 9 (K g ) should query all temperature sensors of odd and even rows of the AKB batteries accordingly.
- the current direction through the temperature sensors is positive for odd rows and negative for even rows.
- a positive voltage is supplied to the temperature sensors of uneven rows of (m) accumulators on the measuring rails for electrical data 4 (a) and 5 (6).
- a negative voltage is supplied from (m) accumulators to the temperature sensors in even rows.
- the supply voltage is supplied to the control windings of the keys of the temperature sensors of the commutation block 6 (KBTS) only from the first and second outputs of the commutation control block 7 (KSB).
- the voltage from the control windings is the key to the temperature sensor Ren of the first odd and even row of the commutation block 6 (KBTS) corresponding to the inputs of the odd and even analog commutators 8 (K u ) and 9 (K g ).
- the temperature sensors they measure the temperature of two adjacent odd and even rows of AKB accumulators are queried synchronously.
- the voltage from the temperature sensors of odd and even rows of the AKB accumulators comes through the measuring rails of the temperature of the accumulators 10 (B) n 1 1 (r) to inputs of odd and even temperature measuring blocks 13 (TMB U ) and 14 (TMB g ) .
- a voltage is generated at their outputs. It is proportional to the temperature of each AKB accumulator in odd and even rows.
- the voltage from each of the odd and even temperature measuring blocks 13 (TMBu) and 14 (TMB g ) is transmitted to the microcontroller 12 (MK) and to the inputs of the measuring amplifier 15 (MV) for processing.
- a total signal for the temperature of odd and even rows of AKB accumulators is formed. This overall signal is then also transmitted to the microcontroller 12 (MK) for processing.
- the above-described measuring sequence of the accumulator temperature is repeated when connecting every next row of m parallel-connected AKB accumulators to the electrical data rails 4 (a) and 5 (b).
- the serial number of the AKB accumulator with temperature problems is displayed on the digital display 16 (DAt).
- Dtu digital display 17
- 18 Dt g
- the amplitude of the detuning voltage differs from the average value in each of the accumulator rows at the output of this block, a voltage pulse appears, the amplitude of which is proportional to the size of the detuning voltage of the row.
- the positive pulse value of the detuning voltage corresponds to the overcharging and the negative value to the undercharging of a controlled row of AKB batteries.
- the control signals from the microcontroller 12 (MK) that come to the input of the switching device 20 (SV) close a switch-on key Ki when the detuning voltage has a positive input pulse.
- the microcontroller 12 (MK) are presented on the digital indicator electrical data 22 (DA e) Rei hen entitled the AKB accumulators with problems of electrical data, and the type of fault (overcharging and Weak charge).
- a temperature sensor and a resistor of the same small size are arranged within the hermetic body in each AKB accumulator. One end is connected to the accumulator anode for checking and balancing the state of charge.
- AKB accumulators connected in parallel in series are connected.
- a parallel connection of the accumulators in the AKB for each horizontal accumulator row is realized by connecting the second resistor connections of the same small size to the total rows. They are connected in series to a single accumulator block through the electrical anode connections of all accumulators of the previous row of cathodes of the next row.
- the commutation block of the accumulators 3 (KBA) connects the total cables of two adjacent accumulator rows (one starts with the first) to the measuring rails 4 (a) and 5 (b) of electrical data.
- the accumulator temperature is controlled by temperature sensors which are arranged in each accumulator.
- the ambient temperature inside the hermetic accumulator body is measured with temperature sensors which are arranged uniformly in the inner volume of the hermetic body of the AKB accumulators.
- the keys of the temperature sensors with control windings are arranged in the commutation block of the temperature sensors 6 (KBTS).
- the temperature control of each accumulator is carried out by connecting the temperature sensors to the key connections of the rows of temperature sensors of the commutation block of the temperature sensors 6 (KBTS).
- KBTS commutation block of the temperature sensors 6
- a series connection of all temperature sensors of odd and even rows of the AKB accumulators is carried out accordingly to odd and even measuring rails 10 (B) and 1 1 (r) of the accumulator temperature.
- connection sequence of the temperature sensors of each accumulator of the odd and the next even row is carried out by simultaneous querying of odd and even analog commutators 8 (AK U ) and 9 (AK g ) of the control windings of the key of the temperature sensors of the commutation block of the temperature sensors 6 (KBTS) .
- serial connection of the outputs of the commutation control block 7 (KSB) and the serial connection of the inputs of odd 8 (AK U ) and even 9 (AK g ) analog commutators are controlled synchronously by microcontroller 12 (MK) through information rails.
- the clock frequency of the query of odd 8 (AK U ) and even 9 (AK g ) analog commutators exceeds the query frequency of commutation control block 7 (KSB) in proportion to the number of accumulators in the series.
- a voltage is generated which is proportional to the temperature in all odd and even AKB accumulator rows. It is transmitted to the microcontroller 12 (MK) for processing. The output voltage is transmitted to the inputs of the microcontroller 12 (MK) and the measuring amplifier 15 (MV). A total signal for the temperature of odd and even AKB accumulator rows is generated at its output and then also transmitted to the microcontroller 12 (MK) for processing.
- the microcontroller 12 realizes:
- Signals about the temperature of odd and even rows of the block accumulators are processed statistically, and a program control effect is achieved which affects the permanent change in the impulses of the equalization in the event of the imbalance.
- a mathematical expectation and the stray field of the temperature in the controlled rows of block accumulators are determined.
- the average temperature is calculated and analyzed for the last row, which is arranged inside the hermetic AKB accumulator body to measure the ambient temperature.
- a comparison is made with the average temperature of odd and even rows of AKB accumulators according to the specified limits of permissible differences between the average temperatures of the environment and the accumulators in order to maintain comfortable operating conditions of the AKB accumulators.
- the analog signal from the temperature sensors is converted in the time interval.
- the general time interval of the control is formed by the information processing of electrical data and temperatures.
- the microcontroller 12 shows on the digital display 16 (DAt) the number of the accumulator with temperature problems in the case of an impermissible temperature difference in every odd and even accumulator row.
- the temperature distribution displays of odd 17 (D t u) and even 18 (Dt g ) rows of the AKB accumulators show the hystograms of the temperature distribution in odd and even rows that contain accumulators with temperature problems.
- SB control block 19
- the voltage level of the equalization is controlled.
- the control of the pulse duration of the equalization is carried out by the switching device 20 (SV) as follows:
- the voltage of the balancing is applied from block 21 (MBA) to block 19 (SB), in which an overload occurs in the control of 12 (MK) on time, which of the unbalance variable with regard to parameters (U, R B H.) And the temperature is proportional.
- Another switch-on key Ki applies the voltage of the equalization from block 19 (SB) to block 21 (MBA), in which a weak charge in the control of 12 (MK) takes place over time, taking into account the imbalance variable on parameters (U, R BH,) and proportional to the temperature.
- MK weak charge in the control of 12
- U, R BH, imbalance variable on parameters
- U, R BH, imbalance variable on parameters
- MK microcontroller 12
- a differential voltage is applied in the form of measuring pulses of the deviation from the average value, positive in case of overcharging and negative in case of undercharging of the accumulators.
- the microcontroller 12 (MK) converts the amplitudes of the measurement pulses of the detuning voltage into control signals in accordance with the program. The duration for this is proportional to the amplitude of the input pulses of the detuning voltage and the temperature.
- microcontroller 12 By the microcontroller 12 (MK) a control signal is formed on the address equalization of the battery voltage, with the accuracy up to battery mulators with problems of electrical data and with the amplitude that is proportional to the current flowing through 2 (VLB) in one Accumulator series with the help of the compensation devices of the overcharge and the low charge of the control block 19 (SB) of each accumulator flows.
- a control signal in the form of a pulse comes to block 21 (SB), which is regulated according to the duration by electrical data (U and RBH), the temperature and according to the amplitude by the consumption-charging current.
- the voltage is applied to the primary winding of the pulse transformer of block 21 (MBA) in the form of rectangular voltage pulses from the electrical data measuring rails 4 (a) and 5 (b).
- the voltage equalization at the output of block 21 (MBA) is carried out using two single-digit keys in the equalization chain. They are controlled by the microcontroller 12 (MK).
- the output of block 21 is a voltage that contains a constant component. It is the average value of the tension in all bio- ckaccumulators proportional and equal to the voltage size of the h-connection of block 1 (AB). This voltage also contains an alternating component in the form of rectangular pulses of the deviation from the average value.
- DA e digital display of electrical data 22
- a row number of the AKB accumulators with problems of electrical data and the type of fault (overcharging and undercharging) is displayed.
- the temperature distribution in all batteries of the series with problems of electrical data is displayed on corresponding displays of the temperature distribution odd 17 (Dtu) and even 18 (Dtg) series.
- the last (n + 1) row of temperature sensors which is arranged inside the hermetic body of the accumulator block, measures the average temperature inside the AKB accumulator body.
- the experiment was carried out during the work simulation of a system fragment for the automatic monitoring and balancing of the state of charge of the parallel lel series connection of the accumulators carried out in one block. This had a row of two batteries connected in parallel with the number of rows four and the total number of batteries eight.
- thermoresistor in the form of a thermoresistor with high internal resistance was arranged on each accumulator.
- the rows of two accumulators connected in parallel were formed using resistors with a nominal value of less than 1 ohm, which are connected to accumulators.
- Electromechanical keys with low contact resistance were used as single-digit switch-on keys.
- the clock frequency of the interrogation of thermosistors was 200 Hz and that of the block accumulators 50 Hz.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
Abstract
Description
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2019104790A RU2695646C1 (ru) | 2019-02-20 | 2019-02-20 | Устройство автоматического мониторинга и выравнивания степени заряженности параллельно-последовательного соединения аккумуляторов блока |
RU2019104789A RU2697185C1 (ru) | 2019-02-20 | 2019-02-20 | Способ автоматического мониторинга и выравнивания степени заряженности параллельно-последовательного соединения аккумуляторов блока |
PCT/IB2020/000034 WO2020170027A1 (de) | 2019-02-20 | 2020-02-18 | Vorrichtung und verfahren der überwachung (monitoring) und des ausgleichens von blockakkumulatoren |
Publications (1)
Publication Number | Publication Date |
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EP3928410A1 true EP3928410A1 (de) | 2021-12-29 |
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ID=69845460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20712010.6A Pending EP3928410A1 (de) | 2019-02-20 | 2020-02-18 | Vorrichtung und verfahren der überwachung (monitoring) und des ausgleichens von blockakkumulatoren |
Country Status (2)
Country | Link |
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EP (1) | EP3928410A1 (de) |
WO (1) | WO2020170027A1 (de) |
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CA2338282A1 (en) * | 1998-07-21 | 2000-02-03 | Metrixx Limited | Signalling system |
JP3936179B2 (ja) * | 2001-11-30 | 2007-06-27 | パナソニック・イーブイ・エナジー株式会社 | 電池電源装置とその電流検出方法 |
US8618775B2 (en) | 2012-01-05 | 2013-12-31 | Tesla Motors, Inc. | Detection of over-current shorts in a battery pack using pattern recognition |
JP6416665B2 (ja) * | 2015-03-11 | 2018-10-31 | 株式会社マキタ | バッテリ接続システム及びバッテリパック |
US9923247B2 (en) * | 2015-09-11 | 2018-03-20 | Powin Energy Corporation | Battery pack with integrated battery management system |
RU2626378C1 (ru) | 2016-08-19 | 2017-07-26 | Сергей Васильевич Бахмутов | Устройство автоматического контроля и выравнивания степени заряженности блока аккумуляторов комбинированной энергетической установки |
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2020
- 2020-02-18 WO PCT/IB2020/000034 patent/WO2020170027A1/de unknown
- 2020-02-18 EP EP20712010.6A patent/EP3928410A1/de active Pending
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