55 results about "Electrical cell signaling" patented technology

The invention relates to the technical field of electric forklifts and energy storage, and discloses an intelligent battery management system and prediction method based on optical fiber sensing, the system comprises a distributed optical fiber sensing network, a data acquisition and processing module, an intelligent analysis decision module, a battery management control module and a cloud platform interaction module; the method comprises the following steps: collecting a battery signal through a snakelike-spiral optical fiber network, reconstructing a temperature / strain field through noise reduction and filtering, extracting multi-modal features, inputting the multi-modal features into an LSTM model to predict thermal runaway, generating a risk level in combination with an improved equation, dynamically adjusting charging, discharging and heat dissipation strategies, and realizing three-dimensional visual monitoring through a cloud platform. According to the invention, high-precision distributed monitoring of the temperature / strain field of the battery pack is realized through the BOTDR optical fiber sensing network, the LSTM prediction model is constructed by fusing multi-physical field characteristics, and thermal runaway is warned in advance. The improved algorithm reduces the false alarm rate, charging and discharging parameters are dynamically adjusted to prolong the service life of the battery, and a three-dimensional visual platform improves the operation and maintenance efficiency.

The invention relates to the technical field of energy storage battery simulation, and discloses an energy storage battery module simulation method and system based on machine learning. The method comprises the steps of collecting battery signal circuit data of a BMS system in charging and discharging circulation of an energy storage battery pack, extracting voltage fluctuation characteristics and current ripple characteristics of an energy storage high-voltage box, and constructing a multi-dimensional dynamic parameter matrix reflecting the internal state of a battery according to time sequence alignment; carrying out dimensionality reduction compression on the matrix through an encoder of the generative adversarial network to generate a battery state hidden variable; dynamic evolution modeling is carried out on hidden variables by utilizing a time sequence convolutional network, and hidden variable tracks of three charge and discharge cycles in the future are predicted; and performing reverse decoding to generate a simulation battery signal, and outputting a simulation data flow containing voltage, current and temperature parameters. According to the method, the multi-dimensional features and the time sequence modeling capability are fused, accurate simulation of the running state of the energy storage battery module is achieved, and the method is suitable for diversified application scenes.

The invention discloses a lithium ion battery multi-fault grading diagnosis method and system based on a large language model, and relates to the field of lithium ion battery safety control. The disproportionation degree of a battery pack to be detected is calculated based on a battery signal; performing down-sampling on the battery signal based on the disproportionation degree to obtain a down-sampled battery signal; constructing a fault classification task prompt word based on the down-sampled battery signal, and inputting the fault classification task prompt word into a fault classification large model to obtain a fault type and a battery signal sequence corresponding to the fault; calculating a voltage variance quantile based on the battery signal sequence corresponding to the fault, and constructing a fault grading task cue word based on the voltage variance quantile; and inputting the fault grading task cue word into the fault grading large model to obtain a fault grade. With the help of the excellent nonlinear fitting capability of the large model, tiny faults are accurately captured under complex working conditions; and meanwhile, the multi-task parallel processing capability of the large model is exerted, and fault classification and diagnosis functions are realized under the same base model.

This invention relates to the field of battery signal acquisition technology, and discloses a battery pack and power supply device, including: a battery, the battery including a casing and terminals disposed on the casing; a busbar electrically connecting the terminals of two batteries; and a signal acquisition component including a first temperature acquisition module and a second temperature acquisition module, the first temperature acquisition module being electrically connected to the busbar and the second temperature acquisition module being electrically connected to the casing. This invention installs the first temperature acquisition module upside down and the second temperature acquisition module recessed to cooperate with the battery casing, thereby acquiring the casing temperature signal and reducing the space occupied in the height direction of the battery. By comparing the detection results of the first and second temperature acquisition modules, the heat generated during the current transmission process between the terminals and the busbar is determined, and thus the overcurrent capacity between the terminals and the busbar is determined to meet the requirements, ensuring the safety and cycle performance of the battery pack.

The battery pack structure comprises a mounting frame, a battery pack, a battery signal acquisition plate and at least two current collecting tabs. The mounting frame is used for being mounted on the inner side of the shell of an energy storage device, and a mounting space is formed between the mounting frame and the shell. The battery pack is arranged in the mounting space. The mounting frame is formed with at least two mounting portions. At least one current collecting tab is arranged on each mounting portion, and each current collecting tab contacts one same-potential electrode portion of the battery pack. The battery signal acquisition plate is mounted on the mounting frame, and the battery signal acquisition plate is in contact with and electrically connected with the at least two current collecting tabs, so that the electrical signals of each single battery can be acquired at one time through the battery signal acquisition plate. Therefore, the use of a wire harness in the energy storage device can be greatly reduced, and the influence of crosstalk interference on the acquisition accuracy of the battery signal acquisition plate is reduced.

The invention discloses a urethra suspension system, device and control terminal.The urethra suspension system comprises the urethra suspension device and the control terminal, the urethra suspension device comprises a micro motor, a micro battery, a signal receiving and transmitting module and a lifting mechanism, and the control terminal comprises a signal transmission module and an energy transmitting antenna. The urethra suspension device further comprises an energy receiving antenna and a conversion circuit, and the energy receiving antenna is connected with the miniature battery through the conversion circuit. The energy transmitting antenna transmits an energy signal to the energy receiving antenna through magnetic resonance; and the conversion circuit transmits the electric energy converted by the energy signal to the micro battery. According to the urethra suspension device, the service cycle can be prolonged, the service life of the device is longer, the urethra suspension device does not need to judge the tightness of the suspender, the post-operation tightness is adjustable and can be periodically adjusted, and all patients have good urine control.

The invention relates to the technical field of storage battery intelligent monitoring, in particular to an engineering vehicle storage battery intelligent monitoring system, which comprises an electric parameter sensor, and further comprises a data acquisition unit, a data processing unit, a storage battery monitoring unit and a storage battery monitoring unit, the self-adaptive vibration suppression unit is used for dynamically adjusting the equivalent stiffness of the electrical parameter sensor mounting structure based on the real-time vibration frequency, so that the inherent frequency of the mounting structure deviates from the real-time vibration frequency; the collaborative noise reduction unit is used for determining the center frequency of signal processing based on the real-time vibration frequency, adjusting the signal processing bandwidth associated with the center frequency based on the real-time driving speed, and using the determined center frequency and the adjusted signal processing bandwidth to reduce the noise of the real-time driving speed. And carrying out noise reduction processing on the signal output by the electrical parameter sensor. The problem of storage battery signal acquisition inaccuracy of the road roller under the vibration and variable speed coupling working condition can be solved, and high-precision monitoring is achieved.

The invention relates to the field of intelligent control, and discloses a mining monorail crane control system and method based on modular integration. The system comprises an operation state matrix generation module, an abnormal feature vector generation module, a driving part vibration spectrum generation module, a diagnostic element generation module, a traction dynamic distribution scheme and multi-union self-healing strategy generation module and a joint control signal generation module, and an operation state matrix is generated through time-space fusion based on monorail crane multi-source heterogeneous data; extracting a matrix abnormal feature vector, and outputting a driving part vibration spectrum through adversarial spectrum reconstruction; carrying out wavelet packet sample entropy decomposition by combining a load and a battery signal to generate a diagnosis element; decoupling a fault unit according to the fault rule base, and forming a traction dynamic distribution scheme and a multi-union self-healing strategy; and a joint control signal is generated and wirelessly transmitted to a main control core of the monorail crane. According to the invention, the problems of cascade paralysis caused by local faults and sudden shutdown caused by early weak fault leak detection of the mining monorail crane under the abnormal condition are solved.

The invention provides an early-stage fault diagnosis and early-warning device and method for a battery system, relates to the technical field of battery fault monitoring and diagnosis, and solves the problem that ultra-early-stage and high-reliability fault diagnosis and early-warning are difficult to realize under the internal core architecture of the battery system in the prior art. The device specifically comprises a shell main device, an external interface panel, a state indication panel and a Bat-Doctor processing unit, the state indication panel is located on the front face of the shell main device, the external interface panel is integrated on the side portion of the shell main device, and the Bat-Doctor processing unit is arranged in the shell main device and electrically connected with the external interface panel and the state indication panel. The shell main device is independently and externally packaged, the external interface panel is linked with the battery system to obtain an external battery signal, the state indication panel feeds back a communication and safety state, and the Bat-Doctor processing unit performs preprocessing, feature fusion and diagnosis reasoning on the external battery signal and outputs a diagnosis result. The method is used for battery fault diagnosis.

The application discloses a battery signal acquisition structure and a manufacturing method thereof, a battery pack and a vehicle, and belongs to the technical field of batteries. The battery signal acquisition structure comprises a flexible circuit main body extending along a first direction, a plurality of acquisition components connected with the flexible circuit main body and extending along a second direction, a plurality of busbars arranged on one side of the flexible circuit main body along the second direction and connected with the acquisition components, and a fixing film. Along a third direction, the flexible circuit main body, the plurality of acquisition components and the plurality of busbars are arranged on the same side of the fixing film and are in thermal pressure connection with the fixing film. The flexible circuit main body comprises at least two circuit layers arranged in a stack along the third direction, and the acquisition component comprises a first connecting portion, an expansion portion and a second connecting portion. The application also discloses a corresponding manufacturing method. The above scheme is beneficial to improving the integration of related components, simplifying the assembly relationship and improving the structural arrangement.

Embodiments of the present disclosure relate to methods and systems for decoupling a charging signal from a battery signal. A method at a computing device includes sending a request to a vehicle communication subsystem to determine a number of charging ports on a vehicle; receiving a response providing a number of charging ports on the vehicle; sending a request to a vehicle communication subsystem for finding a battery associated with each charging port; and receiving a response identifying a battery associated with each charging port.

The embodiment of the invention provides a battery signal acquisition system, a battery module and a vehicle, the battery signal acquisition system comprises a plurality of groups of battery cell pole pieces, different battery cell pole pieces are pole pieces of different battery cells in the battery module; and the plurality of flexible circuit boards are in one-to-one correspondence with the plurality of groups of battery cell pole pieces, any group of battery cell pole pieces are welded on a conductive region on the corresponding flexible circuit board, and the plurality of flexible circuit boards are connected with the battery management system. The technical problem that the space utilization rate is low due to the fact that the size of a signal acquisition system is large in the prior art is solved.

The invention belongs to the field of lead-acid battery pack detection, and discloses a lead-acid battery pack signal acquisition system and method.The lead-acid battery pack is composed of a plurality of single batteries, and each battery is provided with a positive electrode, a negative electrode and a row of liquid adding holes; the signal acquisition system comprises a series connection structure used for connecting two adjacent batteries in series, a switching structure used for leading out battery signals, a signal acquisition structure used for acquiring the battery signals and a relay circuit board, and the signal acquisition structure is connected with the relay circuit board in a conducting mode. The circuit is clean and tidy, the material supplementing operation at the liquid adding hole is not affected, the manual wiring cost can be reduced, and meanwhile the production safety performance is improved.

The application relates to the field of electric vehicle battery fault diagnosis methods, in particular to a new energy vehicle battery voltage fault diagnosis method based on operation data, which carries out cleaning treatment on battery signal data to obtain time, charging and discharging data and a voltage matrix; time and the voltage matrix meeting preset conditions are reserved; feature extraction is carried out on the voltage matrix, and a feature matrix D is obtained by calculating each row of data; the feature matrix D is subjected to sliding mean filter processing to obtain a voltage feature extraction matrix; the voltage feature extraction matrix is subjected to sliding calculation, the features of each cell in the window are summed and calculated, and then differential calculation is carried out to obtain a feature value trend change matrix; according to time points, the feature vectors of the voltage feature extraction matrix and the feature value trend change matrix are traversed, whether the feature values meet the conditions is judged, if yes, it is judged as suspected abnormality; if suspected abnormality occurs at the same time in the same cell, it is determined that the final abnormality occurs. The application reduces the false positive rate of fault diagnosis.

The embodiment of the invention provides a BMS hardware-in-the-loop testing system and method, electronic equipment and a storage medium, and relates to the technical field of battery management system testing. The system comprises a simulation machine, an environment simulation cabin, a test bench and a BMS hardware test board, and the simulation machine is used for generating an environment parameter signal and a battery working condition signal and dynamically adjusting test parameters according to a response instruction returned by the BMS hardware test board; the environment simulation cabin is used for adjusting environment parameters of the environment where the BMS hardware test board is located based on the environment parameter signals; and the test bench is used for simulating a battery signal based on the battery working condition signal. According to the method, the coupling effect of the synchronous simulation electric signal and the physical environment is achieved, the test scene can be dynamically optimized according to the real-time response of the BMS, multiple test scenes are covered, the test result is more suitable for the real and complex working conditions of the BMS, and the problem that the BMS performance evaluation by an existing method has deviation compared with the real and complex working conditions is solved.

The present invention relates to the technical field of battery management systems, and specifically discloses a method for optimizing the battery signal acquisition accuracy of a BMS system. By real-time monitoring the voltage, current, and temperature of the battery, the covariance matrices of the process noise and measurement noise are dynamically adjusted to cope with the changes in the battery operating state; according to the changing trends of the charge and discharge rate and temperature, the noise parameters are predicted and corrected to improve the adaptability of the system in extreme environments; by combining data from multiple sensors, an adaptive adjustment mechanism of weighted average and Kalman filter is adopted to enhance the system's evaluation of the signal quality of different sensors and the effective suppression of noise; in response to sudden changes in the battery state, the system can quickly respond by automatically adjusting the filtering algorithm to ensure the precise monitoring of the battery health state. The method of the present invention can improve the stability and accuracy of the battery management system and solve the estimation error problem of traditional methods under extreme working conditions.

To provide a signal sampling module for a battery cell which further improves functional stability of a battery pack by stably maintaining an effective insertion relation between a needle type insertion part and an insertion structure even in a case where vibration is generated in the battery pack, and a battery pack.SOLUTION: A signal sampling module comprises a holder 10, a circuit board 11, a plurality of needle type electric connection materials, and a plurality of signal sampling lines 13. The holder has a first side face 101 and a second side face 102 which are opposed in a first direction. A plurality of insertion structures 110 is provided in the circuit board, and the needle type electric connection material includes a first connection part and a needle type insertion part 1220. The needle type insertion parts of the needle type electric connection materials are inserted into the plurality of insertion structures in one-to-one correspondence. The needle type insertion part is electrically connected to a battery management circuit which is loaded on the circuit board, second connection parts of the plurality of signal sampling lines are correspondingly connected to the first connection parts of the plurality of needle type electric connection materials, and a sampling part of the signal sampling line samples a signal of a battery cell.SELECTED DRAWING: Figure 4

The invention relates to the technical field of battery health state monitoring and evaluation systems, and discloses a battery health state monitoring and evaluation system integrated with a battery management system, which comprises a battery state monitoring unit, and the output end of the battery state monitoring unit is in signal connection with an independent battery detection unit and a battery state analysis unit. And the output end of the independent battery detection unit is in signal connection with a damage feedback unit. According to the battery health state monitoring and evaluating system integrated with the battery management system, signals are transmitted to each independent battery through the battery signal receiving module, after the battery receives the signals through the input module, the battery VIT detection module is used for detection, and when a certain battery in a battery pack breaks down, the battery is monitored. When the battery breaks down, a signal is transmitted to the signal uploading module through the feedback module, and an indicating lamp is lightened through the indicating module, so that the faulty battery can be quickly detected, the complexity caused by troubleshooting one by one is avoided, and the battery maintenance efficiency is improved.

The invention relates to the technical field of battery monitoring, and discloses a battery monitoring method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining battery state signals, including voltage, current, temperature and internal resistance, of a power battery, generating a battery signal set based on the battery state signals, performing embedding representation on the battery signal set to obtain spatial embedding representation and time embedding representation, performing spatial feature extraction on the spatial embedding representation to obtain spatial dependency features, and performing time feature extraction according to the spatial dependency features and the time embedding representation to obtain time dependency features; performing feature fusion on the spatial dependency features and the time dependency features to obtain fusion features, and performing battery monitoring based on the fusion features; according to the method, the change of the battery state signal of the power battery in time and space dimensions is comprehensively considered, and the accuracy and reliability of battery monitoring are improved.

The utility model relates to the technical field of battery signal acquisition, in particular to a battery signal acquisition terminal, a CCS assembly with the battery signal acquisition terminal and a battery pack with the battery signal acquisition terminal. The battery signal acquisition terminal comprises a metal sheet, the metal sheet comprises a body part and a bending part extending from the first end part of the body part, and the metal sheet is provided with an opening formed at the joint of the bending part and the body part.

The utility model provides a battery signal sampling device and a battery system, and belongs to the technical field of batteries, the battery sampling device comprises a flexible circuit board, the flexible circuit board comprises a circuit layer and two insulating layers, a main fusing unit and at least one auxiliary fusing unit arranged in parallel are arranged in a circuit of the circuit layer, and the auxiliary fusing unit comprises a bonding pad; the circuit layer is arranged between the two insulating layers, at least one insulating layer comprises a first insulating film and a second insulating film, the second insulating film is arranged opposite to the bonding pad, the first insulating film is connected with the second insulating film, and a micro-connection structure is arranged at the joint of the first insulating film and the second insulating film. The second insulating film opposite to the bonding pad is connected with the first insulating film through the tearing line, the second insulating film corresponding to the bonding pad can be quickly removed under the condition that the main fusing unit in the circuit is fused, the bonding pad is communicated so as to be communicated with the auxiliary fusing unit to repair the sampling loop, the operation is simple and quick, and the working efficiency is improved. And the maintenance cost and the maintenance difficulty are reduced.

The technical scheme adopted by the present application is: a kind of vehicle speed sensor acquisition and diagnosis circuit, comprising: resistance R1, resistance R2, resistance R4, resistance R5, resistance R6, resistance R8, diode, MOS tube and battery;Signal input end is connected to ground through series-connected resistance R1 and resistance R2;The cathode of diode is connected between signal input end and resistance R1, and the anode of diode is electrically connected with the gate electrode of MOS tube through resistance R6;The anode of diode is connected with the drain electrode of MOS tube through resistance R4 and resistance R5;The gate electrode of MOS tube is connected to ground through resistance R8;The source electrode of MOS tube is directly connected to ground;The drain electrode of MOS tube is connected with the positive electrode of battery through resistance R5, and the negative electrode of battery is connected to ground;Sensor signal output end is connected between the drain electrode of MOS tube and resistance R5;Diagnosis signal output end is connected between resistance R1 and resistance R2.The present application can diagnose the fault type of vehicle speed sensor.

The application discloses a test system and a test method. The test system comprises a simulation platform, a battery simulator and a battery management module. The simulation platform is configured to generate at least one set of simulated battery signals, send each set of simulated battery signals to the battery simulator according to a preset timing, and send a trigger signal to a corresponding target battery monitoring unit when each set of simulated battery signals is sent. The target battery monitoring unit is configured to collect a set of actual battery signals output by the battery simulator when the trigger signal is received. Each set of simulated battery signals corresponds to each set of actual battery signals. The battery management module is configured to determine a target test result based on at least one set of actual battery signals collected by the target battery monitoring unit. In this way, the utilization rate of the battery simulator can be improved, and the complexity and construction cost of the test system are reduced.

The application provides a battery system early fault diagnosis and early warning device and method, relates to the technical field of battery fault monitoring and diagnosis, and solves the problem that existing technologies are difficult to realize ultra-early and high-reliable fault diagnosis and early warning under the internal core architecture of a battery system. The device specifically comprises: a shell main device, an external interface panel, a state indication panel, a Bat-Doctor processing unit; the state indication panel is located on the front of the shell main device, the external interface panel is integrated on the side of the shell main device, and the Bat-Doctor processing unit is built-in in the shell main device and is electrically connected with the external interface panel and the state indication panel respectively; the shell main device is an independent external packaging, the external interface panel obtains external battery signals in linkage with the battery system, the state indication panel feeds back communication and safety states, the Bat-Doctor processing unit pre-processes, feature fuses and diagnoses the external battery signals, and outputs diagnosis results. The application is used in battery fault diagnosis.

The invention relates to a signal acquisition assembly and a battery. The signal acquisition assembly comprises a signal acquisition board and a mounting structure. The signal acquisition board comprises a voltage acquisition part and a temperature acquisition part which are spaced in the thickness direction of the signal acquisition board to form an acquisition space. The collection space is used for containing the confluence piece. The installation structure comprises a first installation part and a second installation part which are matched so that the installation structure can be detachably assembled on the convergence part. And when the mounting structure is in a state of being capable of being assembled with the confluence piece, the first mounting piece and the second mounting piece are pressed on two opposite sides of the voltage acquisition part and the temperature acquisition part respectively, so that the voltage acquisition part and the temperature acquisition part are attached to the confluence piece when the mounting structure is assembled with the confluence piece. According to the technical scheme of the invention, the installation and replacement of the temperature acquisition part and the voltage acquisition part can be simplified, and the space utilization rate and the assembly efficiency are improved through voltage and temperature acquisition integration.

The present invention provides a signal acquisition harness for a vehicle's power battery. The harness has a reasonable structure and can be stably and reliably installed with a battery pack to avoid damage caused by pulling or vibration due to bulging, thereby ensuring the service life and reliability of the battery signal acquisition harness. The harness comprises a flexible circuit board, an L-shaped through groove is provided on the flexible circuit board to form a cantilever beam area, a connecting piece is provided on the cantilever beam area, the flexible circuit board is connected to a single battery through the connecting piece, and an insulating protective layer is formed on the upper and lower surfaces of the connection between the connecting piece and the cantilever beam area by dispensing glue.

The application relates to the technical field of new energy automobile battery safety management, in particular to a new energy automobile battery monomer short circuit detection system and method, the system collects target battery signals and battery physical and chemical data through a battery data acquisition module, filters, normalizes and extracts features of the target battery signals through a battery signal processing module, dynamically adjusts a short circuit feature self-adaptive threshold according to real-time working condition quantitative values through a monomer short circuit monitoring module, predicts a short circuit development trend and provides an intervention window period through a short circuit trend prediction module, and monitors an electric-power coupling value and dynamically adjusts and regulates a regulation strategy through a risk window regulation module, so that early and accurate detection and graded early warning of battery monomer short circuits are realized, and the accuracy of short circuit detection and the timeliness of graded regulation are improved.

The invention relates to a split type lithium battery management system based on wireless data transmission, and belongs to the technical field of battery management. The system comprises a plurality of modules, each module is internally provided with a battery signal acquisition and control module, an MCU and a wireless communication module, and each module transmits data acquired by the battery signal acquisition and control module to other modules in a wireless mode, so that each module in the system obtains required overall system information through a network. The MCU performs calculation according to the whole system information, and transmits a control signal to the battery signal acquisition and control module of the controlled module through the wireless communication module, so that the cooperative control of the system is realized, the technology does not need to depend on a total BMS board and wiring, and the flexibility, reliability and expandability of the BMS system are remarkably improved.

This invention relates to the field of new energy battery technology, and in particular to a battery signal acquisition integrated structure based on a flexible flat cable and its fabrication method. The structure includes a vacuum-formed bracket, a flexible flat cable, multiple acquisition nickel plates, multiple aluminum busbars, and connectors. Each end of the acquisition nickel plate has a locking block and a welding section. The aluminum busbars have locking grooves, and the welding sections have welding holes. The flexible flat cable includes an insulation layer and multiple conductors. Multiple welding windows are formed on the top of the insulation layer, exposing the conductors to form pads. The welding holes are welded to the pads through the welding windows. The surface of the pads has an array of pits formed by laser microtexturing. During reflow soldering, the molten solder can fully fill the pits, enhancing the shear strength and peel resistance of the solder joints, ensuring the long-term electrical insulation performance of the FFC, and reducing contact resistance and its long-term drift risk. The entire fabrication method does not require special equipment such as ultrasonic welding, which is beneficial for high-yield mass production.