7365results about "Cell temperature control" patented technology

The invention relates to the technical field of battery thermal management, in particular to a battery thermal management control method and system, and the method comprises the steps: obtaining the basic operation parameter data of an automobile battery in real time, and carrying out the multi-dimensional data fusion, and obtaining a multi-dimensional data set; based on the thermodynamic model and the multi-dimensional data set, the temperature distribution condition in the battery is calculated in real time, and real-time temperature distribution information is obtained; based on the historical data and the operation state, the future temperature change trend of the battery is predicted through a recurrent neural network model; dynamically adjusting a control strategy of the battery thermal management system according to the real-time temperature distribution information and the prediction result; and analyzing the temperature difference condition of the battery monomers, detecting abnormal temperature rise, and performing temperature difference balance adjustment and triggering a multi-stage protection mechanism when the abnormal temperature rise exceeds a threshold value. According to the invention, the problems of inaccurate temperature prediction and response lag in the prior art are effectively solved, the control strategy is dynamically adjusted through real-time data fusion and recurrent neural network prediction, temperature difference balance and abnormal temperature rise detection are realized, the safety of the battery is improved, and the service life of the battery is prolonged.

The invention relates to the technical field of batteries, and discloses a battery thermal runaway early warning and cooling system which comprises a multi-parameter monitoring module, a data processing and early warning model and a cooling system control module. Wherein the multi-parameter monitoring module is used for acquiring the internal resistance value of each battery monomer in real time in a battery charging process, calculating the internal resistance range, the internal resistance standard deviation and the variable coefficient according to the internal resistance value at a sampling time point, monitoring the working environment gas of the battery through a mass spectrometer, and acquiring the real-time mass spectrum monitoring data of the gas in real time; release characteristics, including hydrogen, hydrocarbon compounds and the like, of escaped gas are quantitatively analyzed on the basis of an equivalent characteristic spectrum method. According to the battery thermal runaway early warning and cooling system, various key parameters in the battery charging process are comprehensively monitored, early warning of the battery thermal runaway risk is achieved, timely intervention is conducted in combination with the cooling system, the thermal runaway risk is reduced, and vehicle and personal safety is guaranteed.

The invention relates to the technical field of new energy automobile thermal management, in particular to a direct cooling and heating management system and method in an automobile power battery. The method comprises the following steps: acquiring vehicle real-time operation condition data and battery pack state monitoring data; working condition mode recognition processing is conducted according to the vehicle real-time operation working condition data, and vehicle working condition mode feature data are generated; performing thermal load demand analysis on the battery pack state monitoring data based on the vehicle working condition mode characteristic data to obtain dynamic thermal load demand data of the battery pack; and according to the dynamic thermal load demand data of the battery pack, refrigerant demand quantity calculation and analysis are carried out, the refrigerant supply capacity of the current direct cooling system is evaluated, and refrigerant supply and demand matching feature data are obtained. The specific requirements of three heat sources of the battery, the motor and the cockpit for the refrigerant flow are quantified, and a refrigerant distribution strategy is formed according to the proportional relation, so that the safety of the battery is improved, and the driving comfort and the working stability of the electric driving system are also guaranteed.

The invention relates to the technical field of forklift power battery pack management, and discloses a forklift power battery pack management method, device and equipment and a storage medium and system, and the forklift power battery pack management system comprises a dynamic load prediction module, a multi-mode heat management module and a self-adaptive current control module. A dynamic load prediction model optimized through edge calculation is deeply coupled with a multi-mode thermal management system to form a real-time cooperative closed loop, and the problem of lagging of load change and battery temperature rise response is solved. And through closed-loop optimization of data streams among the modules, adaptive adjustment under multiple working conditions is realized, and the service life of the battery and the energy efficiency are remarkably improved under the hardware condition with limited resources. The mechanism of experimental calibration of cooling coefficient and real-time load coupling adjustment effectively balances cooling energy consumption and temperature control requirements, and significantly reduces system energy consumption. And meanwhile, the intelligent adaptability of the system is enhanced by long-term data recording and optimization iteration supported by the cloud platform, so that the system has the capability of continuously optimizing the performance in a complex operation environment.

An energy storage device (100), an energy storage system (2000), and a charging network (1000). The energy storage device (100) comprises a control module (30), a plurality of compartment bodies (10), and a plurality of energy units (2). The plurality of compartment bodies (10) are arranged in a first direction of the compartment bodies (10). The plurality of energy units (2) are accommodated in at least one compartment body (10). The control module (30) is used for electrically controlling the plurality of energy units (2). The size of at least one compartment body (10) among the plurality of compartment bodies (10) in the first direction is smaller than the size of one standard container in the first direction, the sum of the sizes of the plurality of compartment bodies (10) in the first direction is larger than the sum of the sizes of one or more standard containers in the first direction, and the first direction is the length direction, the width direction or the height direction of the compartment bodies (10).

The embodiment of the utility model provides a container, an energy storage device, an energy storage system and a charging network. The energy storage device comprises a container, a control module and a heat management module. The number of the containers is m, m is larger than or equal to 2, and the m containers are arranged in the first direction of the containers. In the first direction, the size of the container is smaller than that of a standard container. The container comprises a container body and a plurality of single batteries, and the plurality of single batteries are accommodated in the container body. And the control module is arranged in the box body and is used for electrically controlling the plurality of single batteries in the m containers. And the heat management module is arranged in the box body and is used for managing the temperature of the plurality of single batteries of the m containers. According to the energy storage device provided by the embodiment of the invention, the convenience in the transportation process of the container is improved, the transportation cost of the container and the energy storage device using the container is reduced, the space in the container can be fully utilized, the integration degree is high, and the assembly efficiency is improved.

The invention provides a new energy automobile battery thermal management method and system based on big data. The method comprises the steps that real-time data flow and a historical temperature change curve in a battery pack are collected in real time through a distributed sensor array; inputting a pre-trained time sequence prediction model, outputting a predicted temperature change curve and calculating a real-time temperature rise slope; obtaining an environment comprehensive compensation amount according to the environment temperature and the battery health state, and subtracting the environment comprehensive compensation amount from the basic safety threshold value to obtain a dynamic safety threshold value; determining a dynamic temperature compensation amount through a preset slope grading mechanism, and subtracting the dynamic temperature compensation amount from the dynamic safety threshold to obtain an advanced intervention temperature point; and when the temperature of the battery pack reaches the advanced intervention temperature point, a graded cooling system is started, and cooling power grades are dynamically switched according to the growth interval where the real-time temperature rise slope is located. The battery temperature is accurately controlled, and the energy consumption is remarkably reduced.

The invention discloses a liquid cooling pipeline temperature control system based on liquid flow regulation, and the system comprises a data collection module which is used for collecting the temperature, internal resistance and current of a battery cell in real time, and carrying out the calculation to obtain the heat generated by the battery cell; the region division module is used for obtaining weight coefficients of a plurality of battery cells according to the average temperature of the battery module and the heat production of the battery cells, and performing region division according to the weight coefficients and the space coordinates of the battery cells by utilizing a clustering algorithm; the optimization control module is used for constructing a region optimization model according to the target temperature and solving flow set values of a plurality of regions based on constraint conditions; and the flow feedback module is used for calculating the pressure compensation flow according to the pipeline shapes of the plurality of areas and the current flow, calculating the aging compensation flow according to the internal resistance of the battery cell, and updating the flow set value again by using the pressure compensation flow and the aging compensation flow. The invention relates to the technical field of battery thermal management, and solves the technical problems of non-uniform temperature adjustment and inaccurate control of an existing liquid cooling temperature control system.

One example provides a chassis for an electric snowmobile including a battery pack. The battery pack includes a battery pack housing defining an enclosure for housing a number of battery modules for powering an electric motor of the electric snowmobile, the battery pack housing having a length extending in a longitudinal direction of the snowmobile, the battery pack housing including a bottom surface. A pair of opposing side panels extends downwardly from and along at least a portion of the length of the battery pack housing, the opposing panels and at least portions of the bottom surface of the battery pack housing together forming a rear structure extending in the longitudinal direction of the electric snowmobile.

The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on / off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.

The invention relates to the technical field of battery thermal management, and provides a dynamic thermal management method and system for a battery module, and the method comprises the following steps: carrying out the local environment heat dissipation capability evaluation when a preset triggering condition is satisfied, and generating an evaluation result; generating a heat dissipation adjustment parameter of the heat dissipation system based on the evaluation result and the current thermal state of the local battery; carrying out data monitoring and recording, and generating reported data information; the reported data information comprises data related to local environment heat dissipation capability evaluation, evaluation result data, heat dissipation adjustment parameter data of a heat dissipation system and battery thermal state change data after the heat dissipation system executes adjustment; and uploading the reported data information to a cloud platform, so that the cloud platform executes continuous learning and optimization operation of the thermal management strategy based on the reported data information. The method has the advantages that the adaptability and safety of heat management are improved, and continuous optimization of a cloud strategy is supported.

The invention discloses a lithium battery thermal runaway active protection method and system combined with self-supervised learning, and relates to the technical field of thermal runaway protection, and the method comprises the steps: detecting the dynamic impedance of a battery through a high-frequency excitation signal; learning data internal distribution characteristics by comparing loss functions; constructing a generator to simulate early-stage characteristics of thermal runaway, and optimizing the sensitivity of a simulation model to an abnormal mode through a discriminator; the early warning value is updated in real time to adapt to battery aging and working condition changes; establishing a multi-physics field coupling model; the simulation data and real experiment data are fused; dynamically adjusting the charging current based on the battery health state; and positioning a thermal runaway fault unit through the graph neural network. By arranging the abnormity simulation module, the self-supervised learning module and the model building module, abnormal signals in the early stage of thermal runaway are found in advance, active protection is achieved, battery aging and working condition changes are adapted, and the accuracy and reliability of early warning are improved.

A heat pump system for a vehicle includes: a valve, an electrical component cooling device, a battery cooling device, an indoor heating device, an indoor cooling device, a centralized energy device, and a chiller, wherein the second line is selectively fluidically-connectable to the first line connected to the radiator through the second valve; a condenser included in the centralized energy device is selectively fluidically-connectable to the first line or the second line through a third valve to condense the refrigerant supplied through the refrigerant line through heat-exchange with a coolant provided in a sixth line through which a coolant flows; and a first end portion of the third line is selectively fluidically-connectable to the sixth line through a fourth valve provided in the sixth line.

The invention provides a liquid cooling partition intelligent control method for an energy storage system, and relates to the technical field of intelligent control, and the method comprises the steps: obtaining the real-time operation data of the energy storage system, and analyzing the current heat demand of the energy storage system based on the temperature data of an energy storage converter and a battery pack; a real-time temperature control target is determined, then a liquid cooling working mode is selected, a corresponding liquid cooling control instruction is generated, the operation rotating speed of a water pump of the water cooling unit is adjusted according to the instruction, corresponding cooling liquid flow is generated, cooling liquid is distributed to an energy storage converter and a battery pack loop by adjusting and controlling the opening and closing angle of a three-way valve, and an initial liquid cooling path is formed; cooling simulation and optimization are carried out by establishing a real-time twinborn model, the problems that the energy efficiency is low and the system performance is unstable due to the fact that dynamic and independent refrigeration control cannot be provided for different thermal load requirements through liquid cooling and heating management are solved, and the effects of improving the thermal management efficiency and the system energy utilization efficiency and optimizing the system stability are achieved.

The invention relates to the technical field of photovoltaic energy storage cabinets, in particular to a safety type photovoltaic energy storage cabinet. Comprising an outer shell, a plurality of inner shells are fixedly connected in the outer shell, battery packs are detachably and fixedly connected in the inner shells, cooling fans which are symmetrically distributed are arranged outside the outer shell, each inner shell is provided with two cooling row holes which are symmetrically distributed, and the inner shells are slidably connected with two plugging frames which are symmetrically distributed. The two plugging frames on the inner shell are jointly provided with a connecting frame, the inner shell is fixedly connected with a sliding rail, an electric sliding block is slidably connected into the sliding rail, and the electric sliding block of the sliding rail is fixedly connected with the adjacent connecting frame. According to the invention, the temperatures of the plurality of battery packs during charging are respectively detected, and heat dissipation of different degrees is carried out according to different temperatures of the plurality of battery packs, so that the plurality of battery packs are at proper temperatures, cooling resources are allocated as required, energy is saved, and operation cost is reduced.

The utility model discloses a multi-battery pack energy storage system water cooling unit and an energy storage cabinet applied by the same, a plurality of circulating water cooling pipelines connected in parallel are adopted, and each battery pack is correspondingly distributed with one independently controlled circulating water cooling pipeline; a circulating pump, a flow regulating valve, a heater and a heat exchanger are arranged on each circulating water cooling pipeline in series; a water inlet and a water outlet of each circulating water cooling pipeline are respectively butted to the liquid cooling unit of the corresponding battery pack; each battery pack is provided with a temperature sensor, the liquid cooling unit corresponding to each battery pack is provided with a pressure sensor, the water cooling unit further comprises a liquid cooling controller, and the input end of the liquid cooling controller is in communication connection with the temperature sensors and the pressure sensors of all the battery packs and the liquid cooling units. And the output end is in communication connection with the circulating pump, the flow regulating valve and the heater on the circulating water cooling pipeline corresponding to each battery pack. According to the utility model, balanced temperature control among the multiple battery packs of the energy storage system is realized, and the reliability of the whole system is improved.

Aspects of the disclosure include systems and methods for using thermally induced adhesive removal for battery maintenance. An exemplary method may involve picking up a battery pack with an adhesive layer at an interface between a cooling plate and a component. A heating fluid is passed through an enclosed volume of the cooling plate, and the temperature of the adhesive layer is measured. In response to the finding that the temperature has reached a target temperature, a load is applied to the component until the component is removed.

A heat pump system for a vehicle cools or heats the vehicle interior by using a natural refrigerant, and efficiently adjusts the temperature of a battery module by using a single chiller that exchanges heat between refrigerant and coolant.

The present application provides a pulse heating control method, device, system and readable storage medium, the method comprising: when the operating state of the battery module meets the pulse heating condition, obtaining the initial temperature of the battery module; determining the pulse current control parameters of the bidirectional power conversion module according to the initial temperature of the battery module; sending a first control instruction to the bidirectional power conversion module according to the pulse current control parameters, wherein the first control instruction is used to control the bidirectional power conversion module to heat the battery module; when the real-time temperature of the battery module is monitored to be greater than or equal to a preset temperature threshold, sending a second control instruction to the bidirectional power conversion module; wherein the second control instruction is used to control the bidirectional power conversion module to stop heating the battery module. In the present application scheme, the pulse current control parameters can be flexibly determined according to the actual temperature of the battery, and then the output pulse current can be adjusted, which is conducive to improving the efficiency of pulse heating.

A system and a method for managing operating temperature and pressure of a battery are disclosed. Cells of the battery are housed in cylindrical modules into which a heat transfer fluid under pressure and at a temperature circulates. A fluidic unit has a return reservoir that collects oil leaving the modules, and cooling and heating reservoirs containing oil pumped from the return reservoir at predefined hot and cold temperatures. Oil is transmitted to the modules at a temperature and a pressure almost instantaneously obtained by regulated mixing and flow rate of hot and cold oil. The mixing and the flow rate are controlled by controllers connected to a BMS which manages oil pressure and temperature setpoints to be applied to the cells as a function of a demand in power and in energy received by the BMS and pressure and temperature measurements taken by sensors in the system.

The embodiment of the invention provides a thermal management integration module and an automobile, and relates to the field of automobile manufacturing. The heat management integrated module comprises an integrated water tank, a battery water pump, a warm air water pump and a heat exchanger. Wherein the integrated water tank comprises a tank cover, a battery auxiliary water tank and a motor auxiliary water tank, the tank cover covers one of the battery auxiliary water tank and the motor auxiliary water tank, the battery auxiliary water tank is communicated with the motor auxiliary water tank, and the battery auxiliary water tank, the battery water pump, the heat exchanger and the warm air water pump are sequentially communicated. In the working process, the battery auxiliary water tank and the motor auxiliary water tank which are communicated are integrated in the integrated water tank, water adding can be conducted only by opening the tank cover so that water can be supplied to other parts, the battery water pump and the warm air water pump are used for pumping water, and the heat exchanger is used for conducting heat exchange operation on the pumped water. The thermal management integrated module can integrate parts related to thermal management, so that the number of the parts is reduced, the assembly process is simplified, the assembly reduction difficulty is reduced, and the assembly efficiency is improved.

The invention relates to the technical field of batteries, in particular to a battery pack cooling system which comprises a battery box, a cover plate, cooling liquid and a battery pack. The cover plate is erected at the top of the battery box, and the battery box and the cover plate define a sealed space; the cooling liquid is arranged in the sealed space; the battery pack is arranged in the battery box, and the cooling liquid is used for cooling the battery pack.

The invention relates to the technical field of electric vehicle power battery thermal management, and discloses a temperature change-based power battery thermal management system, which comprises a thermal simulation pre-judgment end, a sensor network end, a dynamic liquid cooling control end, a BMS decision end and a fault diagnosis module, aiming at the technical defects of out-of-control temperature difference, response hysteresis and leakage risk caused by static flow channel design of the existing liquid cooling system, breakthrough is realized through a three-dimensional technical architecture: a CFD (Computational Fluid Dynamics) prejudgment layer: automatically calibrating sensor distribution points based on temperature field standard deviation, and improving temperature difference identification precision; according to the dynamic valve control layer, an electromagnetic three-way reversing valve is adopted to execute a directional temperature control strategy, an edge battery cell is preferentially introduced under the low-temperature working condition, and heat dissipation is enhanced under the high-temperature working condition; according to the redundant safety layer, the valve body and the pipeline are integrally formed, the leakage rate is reduced, and flow maintenance under single-point failure is achieved through a double-water-inlet parallel pump source. The method has the effects of improving the convergence speed of temperature difference between modules, reducing the attenuation rate of battery life and reducing the risk probability of thermal runaway.

A battery heating device includes: a radiator and a heater core arranged in parallel with each other; a battery temperature adjusting unit for heating a battery with a heat medium; a first branch branching the heat medium between the radiator and the heater core; a first confluence where the heat medium merges; a second branch where the heat medium from a heat emitter is branched to the battery temperature adjustment unit; a second confluence where the heat medium flowing through the battery temperature adjustment unit merges; and a radiator flow rate reducing part arranged in a passage for the heat medium from the first branch or the second branch closer to the radiator to the first confluence or the second confluence closer to the radiator via the radiator.

The present application relates to the field of batteries, and provides a thermal management system and a control method therefor, an energy storage system, and an electrical apparatus. The thermal management system comprises a first confluence unit, a second confluence unit, a thermal management unit, and an adjustment apparatus. The first confluence unit comprises at least one liquid outlet; the second confluence unit comprises at least one liquid return port; the thermal management unit comprises a plurality of refrigerating branches, and the plurality of refrigerating branches are respectively in fluid connection with the first confluence unit and the second confluence unit in a parallel mode; the adjustment apparatus is used for adjusting the refrigerating capacity of at least one refrigerating branch among the plurality of refrigerating branches.

An energy storage device and an energy storage system. The energy storage device comprises a first module (1) and a second module (2). The first module (1) comprises a first compartment body (11) and a first battery device (12), wherein the first compartment body (11) accommodates the first battery device (12). The second module (2) comprises a second compartment body (20) and a first heat exchange assembly (220), wherein the second compartment body (20) accommodates the first heat exchange assembly (220). The second module (2) is stacked on the upper side of the first module (1), and the second compartment body (20) is connected to the first compartment body (11). In the structure described above, since the energy storage device comprises the first module (1) and the second module (2), which are stacked, and the first module (1) and the second module (2) comprise the first compartment body (11) for accommodating the first battery device (12), and the second compartment body (20) for accommodating the first heat exchange assembly (220), respectively, during assembly of the energy storage device, it is only necessary to connect the first compartment body (11) in the assembled first module (1) to the second compartment body (20) in the assembled second module (2), without needing to install each functional component of the energy storage device at an installation site, thereby being conducive to improving the installation convenience of the energy storage device.

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The invention relates to the technical field of new energy ships, in particular to a new energy ship power battery cabin cooling system which comprises a cooling box body, the cooling box body wraps a power battery, a fluid cavity channel used for cooling liquid circulation is formed in the cooling box body, and a water cooling system comprises a water pump and a pipeline connected with the cooling box body. The water pump pumps a cooling water source from the water tank and circulates through the fluid cavity channel to take away heat generated by the power battery, the phase change material module is arranged in the cooling box body, and a phase change material absorbs the heat and generates phase change when the temperature of the battery reaches a preset value so as to reduce the temperature generated by the battery; the intelligent control system comprises a temperature sensor, a flow sensor and a central control unit, monitors temperature and flow data of the power battery and the cooling system in real time, and dynamically adjusts operation of the water pump, the flow of cooling water and the working state of the heat energy recovery module. The cooling efficiency and the energy utilization rate of the system are comprehensively improved.

A base station is disclosed that is configured for use with a UAV. The base station includes: an enclosure with an outer housing that defines a roof section and an inner housing that is connected to the outer housing; one or more heating elements that are supported by the enclosure and which are configured to heat the roof section; one or more fiducials that are supported by the enclosure; an illumination system that is supported by the enclosure and which is configured to illuminate the one or more fiducials; and a visualization system that is supported by the enclosure.

A battery housing for a vehicle driven by an electric motor to be installed in the floor region of a vehicle. The battery housing has a frame, which encloses at least one battery module, and a floor, which is connected to the frame. The floor takes the form of a sandwich construction and forms hollow chambers, which can be used as temperature-control channels for guiding through a fluid by virtue of end-side openings in adjacent hollow chambers being connected to one another at their two ends.