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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 25. Отображено 25.
25-02-2015 дата публикации

Lithium battery pack charging method

Номер: CN104377396A
Принадлежит:

The invention provides a lithium battery pack charging method. According to the lithium battery pack charging method, the diversity of single cells is gradually reduced by adopting four stages of a constant-current pre-charging mode, a constant-current equalizing charging mode, a constant-voltage current-reducing charging mode, and a constant-current trickle charging mode. The relatively poor single cell can be relatively fully charged, and the relatively good cell can be discharged in an equalizing manner by controlling the charging time and charging current of the single cell with a relatively poor performance so as to achieve the effect that the diversity of the single cells is well reduced. The cells can be recovered to a certain degree by stopping charging for a period of time in the constant voltage charging mode, the voltage of the relatively-high-voltage single cell is reduced to a certain degree, so that the charging time can be prolonged for the relatively low voltage cell, and ...

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21-10-2015 дата публикации

Electricity mandrel heat radiation structure of group

Номер: CN0204720490U
Принадлежит:

The utility model provides an electricity mandrel heat radiation structure of group, including electric core group, module drain pan, module face -piece, run -on, anodal ear, negative pole ear, electricity core group for the electric core of a M N monomer with the range upon range of formula constitution of arranging to in arranging the module drain pan in, M and N are the natural number, end and the combination of module face -piece are drawn forth to the electrode of monomer electricity core, the run -on is installed on the module face -piece, carries out electrical connection respectively with the positive electrode and the negative electrode of all monomers electricity cores to draw forth through anodal ear, negative pole ear respectively, the module face -piece includes a M N face -piece frame, and the face -piece frame separates monomer electricity core fixed to improve the fatigue strength of electric mandrel group and help ventilation cooling. The utility model discloses can reduce ...

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25-02-2015 дата публикации

Device with slave control units replaceable and master-slave matching method thereof

Номер: CN104375479A
Принадлежит:

The invention discloses a device with slave control units replaceable and a plate number distribution method thereof. The device comprises a master control unit, the multiple slave control units and a peripheral circuit. The slave control units are electrically connected with the peripheral circuit through corresponding signal lines and comprise plate number generation modules. The plate number generation modules are used for actively generating plate numbers belonging to the slave control units according to signals of different levels, wherein the signals are collected by the corresponding signal lines. The plate number distribution method comprises the steps that the slave control units collect preset level signals output by the peripheral circuit corresponding to the signal lines, and according to the collected preset level signals and a certain protocols, the plate numbers of the slave control units are set automatically. Compared with the prior art, the method has the obvious advantages ...

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27-08-2014 дата публикации

Lithium ion battery charge state and parameter adaptive joint estimation method

Номер: CN104007395A
Принадлежит:

The invention discloses a lithium ion battery charge state and parameter adaptive joint estimation method in the technical field of lithium ion battery management. The lithium ion battery charge state and parameter adaptive joint estimation method includes the steps of determining key coefficients having influences on the SOC estimation accuracy of the lithium ion battery charge state, identifying basic parameters for estimating the lithium ion battery charge state, calculating a terminal voltage estimated value of a lithium ion battery at the moment k with the battery state equation, measuring a terminal voltage actual value of the lithium ion battery at the moment k at the same time, updating the key coefficients at the moment k according to the key coefficient updating equation, getting the state of the lithium ion battery at the moment k+1, and calculating a terminal voltage estimated value of the lithium ion battery at the moment k+1 according to the updated key coefficients and the ...

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05-01-2011 дата публикации

Electrocardiograph dry electrode with amplifier

Номер: CN0101933802A
Принадлежит:

The invention relates to an electrocardiograph dry electrode with an amplifier, which is provided with an electrode body and a signal output wire, wherein the electrode body consists of a conducting strips which has high conductivity and is made from metal; the conducting strip has a straw hat shape, and is provided with a flat edge; the middle part of the conducting strip is provided with a round bump with a plurality of salient points; an electroplated layer is arranged outside the conducting strip; the edge is provided with the electric signal output wire; a groove is reserved on the lower surface of the round bump; a miniature amplification circuit board and an epoxy resin sealing layer are arranged in the groove; the electric signal output wire is electrically connected with the amplification circuit board; and a plurality of fixing holes are reserved on the flat edge around the conducting strip. The electrocardiograph dry electrode has the advantages of applicability to the acquisition ...

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01-10-2014 дата публикации

Quantitative analysis method for observer-based SOC estimation errors of lithium batteries

Номер: CN104076293A
Принадлежит:

The invention discloses a quantitative analysis method for observer-based SOC estimation errors of lithium batteries, and belongs to the technical field of battery state-of-charge estimation error analysis. The method includes the steps that a steady-state expression of the SOC estimation errors is determined, and factors affecting the SOC estimation errors are determined according to the steady-state expression of the SOC estimation errors; parameters of a battery equivalent circuit model are confirmed to be in a steady-state state-of-charge section, the SOC estimation errors of the batteries under three conditions are respectively determined, and the influence of the factors on the SOC estimation errors is analyzed according to the SOC estimation errors of the batteries under the three conditions. The steady-state expression of the SOC estimation errors is utilized, the factors affecting the SOC estimation errors are quantitatively given theoretically, a basis is provided for improving ...

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24-09-2014 дата публикации

Electric vehicle automatic charging control method used for private person

Номер: CN104065143A
Принадлежит:

The invention discloses an electric vehicle automatic charging control method used for a private person. The method includes the steps that a charging time period range is selected according to charging finishing time node information set by a user, and the time period range is divided into multiple small subsections according to certain time length; according to battery state information, the charging time length is determined and is namely the number of the small subsections needing charging, and the charging probability of each electric vehicle on each small subsection is calculated; a random number within the range (0, 1) is taken at will on each small subsection for each electric vehicle and compared with the corresponding charging probability, so that whether the vehicle is charged on the subsection or not is determined until the whole process of charging all the vehicles is finished. According to the technical scheme, communication among the electric vehicles within the range and ...

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05-11-2014 дата публикации

Wire harness detection device for voltage acquisition wire

Номер: CN104133149A
Принадлежит:

The invention provides a wire harness detection device for a voltage acquisition wire. The device includes a wire harness detector and an acquisition port conversion module, which are mutually connected. The acquisition port conversion module is connected with one end of the wire harness of the voltage acquisition wire so as to acquire a voltage signal of a battery pack which is connected with the other end of the wire harness of the voltage acquisition wire. The wire harness detector includes a detection board with N channels, a battery module, an N-pin plug-in and a display module. One end of the N-pin plug-in is connected with the acquisition port conversion module and the other end is connected with the voltage detection board with N channels. The device adopts separate voltage acquisition and detects the value of a battery-pack voltage which passes the wire harness of the voltage acquisition wire so as to judge whether the wire harness of the voltage acquisition wire is in an open ...

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09-09-2015 дата публикации

Capacity configuration method of energy storage system for improving wind power prediction accuracy

Номер: CN104899460A
Принадлежит:

The invention provides a capacity configuration method of an energy storage system for improving wind power prediction accuracy, and belongs to the field of the implementation of capacity configuration of the energy storage system for improving wind power prediction accuracy. An error power is analyzed and predicted by using Fourier transform; the energy storage capacities required for obtaining different wind power prediction accuracy improving indexes are obtained by using a trial and error method based on the result of Fourier transform. The capacity configuration method specifically comprises the following steps: Step 1, analyzing and predicting an error power by using Fourier transform; Step 2, determining the energy storage output by using the trial and error method; Step 3, calculating the energy storage capacity; Step 4, writing an algorithm. According to the invention, the amplitude-frequency components obtained through Fourier transform are combined reasonably and used as the ...

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03-06-2015 дата публикации

Method and device for estimating charge state of lithium ion battery

Номер: CN104678316A
Принадлежит:

The invention relates to a method and device for estimating a charge state of a lithium ion battery. The method comprises the following steps: A, fitting a relation between the open-circuit voltage and the charge state of the lithium ion battery; B, estimating the charge state of the lithium ion battery by utilizing an observer method; C, if the charge state of the lithium ion battery estimated in the step B is larger than a predetermined threshold value, estimating the charge state of the lithium ion battery by using the observer method, and if the charge state of the lithium ion battery estimated in the step B is smaller than the predetermined threshold value, estimating the charge state of the lithium ion battery by using an ampere-hour integral method. Through the method and the device for estimating the charge state of the lithium ion battery, provided by the method, the defects of the ampere-hour integral method and the observer method can be overcome, and the high estimation accuracy ...

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26-03-2014 дата публикации

Multipoint insulation fault detection circuit of power battery output bus

Номер: CN103675591A
Принадлежит:

The invention discloses a multipoint insulation fault detection circuit of a power battery output bus. The circuit comprises a signal collection circuit body and a signal detection circuit body, wherein the signal collection circuit body is connected with the signal detection circuit body, and the signal collection circuit body is composed of a resistance balance bridge. The positive pole and the negative pole of the battery bus serve as a first detection point and a second detection point respectively, and the two ends of a load bus serve as a third detection point and a fourth detection point respectively. The multipoint insulation fault detection circuit further comprises a switch switching array which is composed of a switch K1, a switch K2, a switch K3 and a switch K4, wherein the switch K1, the switch K2, the switch K3 and the switch K4 are connected with the first detection point, the second detection point, the third detection point and the fourth detection point respectively, the ...

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09-04-2014 дата публикации

BMS current detection unit automatic calibration device and calibration method

Номер: CN103713271A
Принадлежит:

The invention discloses a BMS current detection unit automatic calibration device and calibration method. The automatic calibration device comprises an upper computer for controlling the whole matching calibration process and performing automatic calculation on the error offset and the gain; a program-controlled constant-current source which is controlled by the upper computer and connected with the upper computer, wherein the program-controlled constant-current source can be used to accurately output a preset current as the calibration signal source according the control command of the program-controlled constant-current source; and a communication module for establishing the data exchange channel between the upper computer and the current detection unit to acquire the detection value of the current detection unit and store the error offset and the gain into a nonvolatile memory in the current detection unit, and a current sensor, and a shunt is arranged between the current detection unit ...

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25-06-2014 дата публикации

Test method for single body cell DC internal resistance

Номер: CN103884991A
Принадлежит:

The application discloses a test method for single body cell DC internal resistance. The test method comprises the following steps: an SOC value of charge and discharge is arranged to be 50%, ambient temperature of a cell box is adjusted, an electric core is charged with 0.3C rate constant current, and charging is cut-off when voltage upper limit is reached and then the electric core stands for 1 hour; the ambient temperature of the cell box is maintained, the electric core discharges with 0.3C rate constant current and stands for 1 hour after discharging; temperature of the cell box is arranged to be the highest working temperature with humidity of 60%RH, the electric core is charged for 10s with 0.5C rate, change of numerical values of voltage is recorded by a tester, and DC charging internal resistance=(img file='201310692279x100004dest_path_image002.TIF' wi='38' he='44' /) is utilized to calculate charging internal resistance and the electric core stands for 1 minute; and the electric ...

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09-12-2015 дата публикации

Power battery module mounting structure

Номер: CN0204857808U
Принадлежит:

The utility model provides a power battery module mounting structure, including upper module, lower floor's module and battery box, still lock the lag bolt under including, lock the stay bolt and the lag bolt of locking down, under lock the lag bolt and tightly lock lower floor's module on the battery box, under lock that the stay bolt runs through upper module and the lower floor module is tightly locked upper module and lower floor's module on the battery box simultaneously, the lag bolt of locking passes the fitting surface connection of upper module and lower floor's module and tightly locks layer module and lower floor's module, this kind of successive layer is fixed and high through the mode stability of locking stay bolt through fixed down again, the module attend the lower floor pile up the installation oversimplify, systematized, need not to use in addition the support to support, lower manufacturing cost, automated production can be realized in the equitable space that utilizes ...

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25-06-2014 дата публикации

Method for debugging BMS lower computer by utilizing upper computer

Номер: CN103885018A
Принадлежит:

The invention discloses a method for debugging a BMS lower computer by utilizing an upper computer. The method comprises the following steps: data are monitored; a function of periodically transmitting the data of the lower computer is debugged; the data are calibrated; the functions of receiving ID data and transmitting the ID data of the lower computer are debugged; the data are processed; the periodically transmitted data and calibrated data are processed, and when information of the data is confirmed to be correct, the data of the lower computer are normal; hardware is controlled; and a relay, a data input port and an output port are controlled, and normality of the data of the functional relay, the data input port and the output port are judged. A BUG of the lower computer can be more comprehensively tested by the test scheme, and repairing can be performed before publishing so that subsequent program writing, production and maintenance are more facilitated, troubles of program re-writing ...

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01-10-2014 дата публикации

Alternating current excitation insulation detection circuit

Номер: CN104076254A
Принадлежит:

The invention discloses an alternating current excitation insulation detection circuit which comprises anode insulation resistance Rz and cathode insulation resistance Rf from a total positive end and a total negative end of a power supply battery set to an electrocar body, and further comprises an alternating current signal source, a sampling module and a data processing module which are used for detecting the insulation resistance value between the electrocar body and the power supply battery set so as to determine the insulation state of the electrocar. Compared with the prior art, the alternating current excitation insulation detection circuit has the advantages that low-voltage detection is adopted, signals cannot be disturbed easily, accuracy of detection of the insulation resistance value is improved, and the circuit is relatively simple and easy to produce and use.

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25-02-2015 дата публикации

Communication circuit

Номер: CN104378100A
Принадлежит:

The invention provides a communication circuit. The communication circuit comprises a first communication device, a second communication device, a communication line, a voltage dividing module, an MOS transistor two-way data transmission module and a power source module, wherein the communication line comprises a clock signal line SCL and a data line SDA, the power module comprises a first power source VCC_A and a second source VCC_B, one end SCL_A of the clock signal line SCL is connected with the first communication device, the other end SCL_B of the clock signal line SCL is connected with the second communication device, the voltage dividing module is connected between the SCL_A end and the SCL_B end of the clock signal line SCL, one end SDA_A of the data line SDA is connected with the first communication device, the other end SDA_B Of the data line SDA is connected with the second communication device, and the MOS transistor two-way data transmission module is connected between the ...

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04-05-2011 дата публикации

Measuring method for state of charge of series-connected batteries

Номер: CN0101526587B
Принадлежит:

The invention discloses a measuring method for state of charge of series-connected batteries, which aims to solve the inaccurate problem of the SOC measuring method in the prior art. According to the SOC measuring method, firstly, the maximum available capacity of each single cell in the series-connected batteries, the residual capacity or the SOC of the single cell is measured, and then, the maximum rechargeable capacity, the maximum discharging capacity or the residual capacity of the series-connected batteries under the same state is determined to be respectively equal to the maximum rechargeable capacity and the maximum discharging capacity in the minimum in the single cells, the maximum available capacity of the series-connected batteries is equal to the sum between the maximum rechargeable capacity and the maximum discharging capacity of the series-connected batteries by calculation, and finally, the state of charge SOC of the series-connected batteries is calculated to be equalto ...

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09-09-2009 дата публикации

Measuring method for state of charge of series-connected batteries

Номер: CN0101526587A
Принадлежит:

The invention discloses a measuring method for state of charge of series-connected batteries, which aims to solve the inaccurate problem of the SOC measuring method in the prior art. According to the SOC measuring method, firstly, the maximum available capacity of each single cell in the series-connected batteries, the residual capacity or the SOC of the single cell is measured, and then, the maximum rechargeable capacity, the maximum discharging capacity or the residual capacity of the series-connected batteries under the same state is determined to be respectively equal to the maximum rechargeable capacity and the maximum discharging capacity in the minimum in the single cells, the maximum available capacity of the series-connected batteries is equal to the sum between the maximum rechargeable capacity and the maximum discharging capacity of the series-connected batteries by calculation, and finally, the state of charge SOC of the series-connected batteries is calculated to be equal to ...

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21-05-2014 дата публикации

Driving testing method for extended range electromobile

Номер: CN103808518A
Принадлежит:

The invention discloses a driving testing method for an extended range electromobile. The method comprises the steps of testing seven conditions, such as a charging condition when SOC (State Of Charge) is more than 40%, a charging condition when the SOC (State Of Charge) is 30-40%, a charge condition when the SOC (State Of Charge) is less than 30%, a city road condition, a climbing condition, a condition that a tested electromobile is not charged in a plug-in way for a long time, and a long-distance driving condition; performing data acquisition on all testing conditions during set time, so as to obtain the data of the tested electromobile under different conditions; and performing SOC precision and balancing effect analysis on the tested automobile under the different conditions. A more comprehensive and more effective driving testing method is provided for the extended range electromobile. Compared with an original driving testing method for an electromobile,the method has more abundant ...

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16-04-2014 дата публикации

Method for measuring and calculating health status of batteries

Номер: CN103728563A
Принадлежит:

The invention discloses a method for measuring and calculating the health status of batteries. The method includes the following steps that multiple times of recording is performed on the batteries, the charged capacity variation deltaQm_n and the accumulated charged capacity AHm_n of each stage are measured; two deltaQm_n peak values in record data are found, and the capacity difference deltaAHm between the two capacities corresponding to the two deltaQm_n peak values is calculated; an SOC table is inquired to obtain an SOC corresponding to the two Qm_n peak values; the capacity Qnow_m of each single battery is calculated, and the raw capacity Qnew_m of each single battery is inquired; the SOHm which is equal to Qnow_m/Qnew_m is calculated. According to the method for measuring and calculating the health status of the batteries, a large number of battery parameter tests are not needed, the method is simple and easy to perform, and a battery management system can be used for achieving SOH ...

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09-09-2015 дата публикации

Equalizing current control method for H-bridge cascaded energy-storing system

Номер: CN104901381A
Принадлежит:

The invention provides an equalizing current control method for an H-bridge cascaded energy-storing system and belongs to the technical field of battery energy storage. The H-bridge cascaded energy-storing system employs carrier phase-shifting modulation. All sub modules use successively-shifted triangular carriers and respective modulating waves. According to the state of charges (SOC) of batteries measured by a battery management system (BMS), the optimum charging current of the batteries is acquired and respective given power instructions are acquired. Finally, the given modulating wave amplitudes of the sub modules are allocated according to the proportions of the power instructions to a total power instruction, thereby controlling the current of the battery pack in an equalized manner. The equalizing current control method prevents overcharging and over-discharging of the battery pack, improves the utilization rates of the batteries, and prolongs the service lives of the batteries.

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11-02-2015 дата публикации

Backup power supply system for rail transit

Номер: CN104340146A
Принадлежит:

The invention discloses a backup power supply system for rail transit. The backup power supply system comprises a lithium battery pack, a battery management system (BMS), a limit protection relay and a vehicle-mounted charger, wherein the BMS and the limit protection relay are respectively connected with the lithium battery pack; the vehicle-mounted charger is connected with the BMS and the limit protection relay; the BMS is also connected with the limit protection relay and is used for performing unified management and maintenance on the lithium battery pack; the vehicle-mounted charger is used for charging the lithium battery pack by the limit protection relay; the limit protection relay is used for protecting the lithium battery pack under the limit condition, wherein the limit condition is that the lithium battery pack is positioned in an overcharging or over-discharging state. According to the backup power supply system disclosed by the invention, the lithium battery pack is used to ...

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04-03-2015 дата публикации

High-voltage relay state detection circuit of power battery and method thereof

Номер: CN104391241A
Принадлежит:

The invention provides a high-voltage relay state detection circuit of a power battery and a method thereof. According to the detection circuit, a series branch circuit formed by a precharge resistor and a precharge relay is connected in parallel at two ends of a positive relay; the precharge resistor is connected to one end of power battery main anode; and the two ends of the precharge resistor are connected in parallel with a test resistor. Meanwhile, a power battery external total pressure measurement function of the battery management system is added and a specific high-voltage electrification flow method is combined, so that fault states of all high-voltage relays and devices can be diagnosed and thus the power battery can complete the high-voltage electrification flow under the circumstances that the states of all high-voltage relays and devices are normal. Therefore, unsafe factors of the high-voltage electrification flow of the power battery can be eliminated; and when a fault occurs ...

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11-11-2015 дата публикации

Do benefit to and judge that electricity adds circuit of electrothermal relay adhesion

Номер: CN0204758746U
Принадлежит:

The utility model discloses a do benefit to and judge that electricity adds circuit of electrothermal relay adhesion, add electrothermal relay, group battery, heater including BCU module, main negative control relay, charging control relay, electricity, still include the shunt, can judge whether adhesion of electric heater in the condition that does not add electrothermal relay auxiliary contact with the help of the electricity, all right reduce cost, reduced size economizes out a lot of spaces for structural design.

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