7317 results about "Thermal management system" 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 industrial automatic control, and discloses an electric control cabinet internal intelligent layout optimization and thermal management system, which comprises an intelligent layout optimization module, which adopts a particle swarm optimization algorithm to comprehensively analyze the multi-dimensional parameter size, the weight, the heat dissipation requirement and the like of internal equipment of an electric control cabinet, realizes layout optimization, and provides a thermal management module for the internal equipment of the electric control cabinet; the method comprises the following steps: receiving equipment parameters input by a user or automatically extracted from an equipment database, including but not limited to physical sizes, power consumption, thermal loads and the like of the equipment, and optimizing targets, including maximizing a space utilization rate, minimizing heat dissipation obstruction, optimizing a maintenance path and ensuring a safe distance between the equipment. According to the internal intelligent layout optimization and heat management system of the electric control cabinet, by comprehensively applying artificial intelligence, three-dimensional modeling, a multi-element heat dissipation technology and an Internet of Things technology, optimal layout and efficient heat management of internal equipment of the electric control cabinet are achieved, and the operation efficiency, safety and maintainability of the electric control cabinet are remarkably improved.

The invention discloses a hydrogen fuel cell vehicle ultralow temperature cold start thermal management system, and relates to the technical field of hydrogen fuel cell vehicle thermal management, the hydrogen fuel cell vehicle ultralow temperature cold start thermal management system comprises a thermal management platform, the thermal management platform is in communication connection with the following modules: a temperature monitoring and predicting module, and the temperature prediction module is used for monitoring the temperature of key parts in the hydrogen fuel cell by using the temperature sensor and predicting the change trend of the temperature in the fuel cell in combination with the temperature prediction model. By utilizing the high-precision temperature sensor and the long-short-term memory network model, the internal temperature change trend of the fuel cell is pre-judged in advance, the heating power is dynamically adjusted, it is ensured that the temperature of the cell is rapidly increased to the proper working temperature in the ultralow-temperature environment, starting difficulty caused by local supercooling is avoided, the low-temperature starting time is remarkably shortened, and the starting efficiency is improved. The reliability and the stability of the system in an extreme environment are improved, and the normal operation of the hydrogen fuel cell vehicle in a cold region is guaranteed.

The invention discloses a thermal management control system and method for a power battery pack, and belongs to the technical field of electric automobiles, and the system comprises the following modules: a multi-parameter acquisition module which is used for acquiring parameter data of the battery pack in real time; the data preprocessing and fusion module is used for generating a high-quality and uniform-format data set; the dynamic prediction modeling module is used for realizing accurate temperature trend prediction; the intelligent decision module is used for generating an optimal heat management strategy; the thermal management execution module is used for realizing accurate temperature regulation and thermal management; the system monitoring and diagnosis module is used for ensuring safe operation of the system; a man-machine interaction module; the intelligent thermal management system is used for realizing man-machine collaborative intelligent thermal management. According to the thermal management control system and method for the power battery pack, the particle swarm optimization algorithm is utilized, the power battery thermal management system of a thermal management strategy is dynamically adjusted, more accurate temperature prediction and control are achieved, energy consumption is optimized, and the service life of the battery is prolonged.

An aircraft thermal management system comprising a high temperature loop and a low temperature loop. The high temperature loop is configured to manage a temperature of a fuel cell stack in a nacelle using a nacelle heat exchanger. The low temperature loop is configured to cool a number of heat loads in a nacelle using a heat capacity of liquid hydrogen.

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.

A thermal management system, comprising: a primary coolant circulation system for cooling a first coolant by circulating the first coolant which is heat-exchanged with cooling water through a first water-cooled condenser; a secondary coolant circulation system for cooling a battery chiller by using a second coolant which is heat-exchanged with the first coolant of the primary coolant circulation system; and a second cooling line for cooling a battery by circulating cooling water which is heat-exchanged through the battery chiller, wherein the number of revolutions of the first condenser of the primary coolant circulation system is less than the number of revolutions of the second condenser of the secondary coolant circulation system, or the first coolant and the second coolant are heat-exchanged via the cooling water, such that the battery can be cooled efficiently during rapid charging.

A heat management system includes: a first flow passage in which a reserve tank is not provided; a second flow passage in which a reserve tank is provided; a switching device configured to switch between coupling and uncoupling of the first flow passage and the second flow passage to and from each other; and a control device configured to control the switching device. The control device is configured to, when predetermined coupling conditions are met, make the heat medium flow through the first flow passage and the second flow passage that have been coupled to each other by the switching device. When the control device determines that air bubbles exceeding the allowable volume are present in the heat medium, the coupling conditions switch from being unmet to being met.

In an embodiment, a thermal management system for a vehicle includes a refrigerant circuit having a compressor, a condenser, an expansion valve, and an evaporator, all connected via refrigerant lines, so that refrigerant passes and circulates therethrough, a coolant circuit having a water pump, a chiller, a water heater, a heater core, and a battery coolant passage through a coolant line, a bypass line installed to connect a refrigerant line between the compressor and the condenser to a refrigerant line between the expansion valve and the evaporator, a branch line branched from the bypass line and connected to the coolant line of the coolant circuit through the chiller, and a valve device configured to control a flow of the refrigerant so that the refrigerant circulating along the refrigerant line flows by selectively passing through the bypass line, the branch line, and the chiller.

A thermal management system adaptive to super fast charging and a vehicle. The thermal management system comprises a refrigerant circulation, a motor coolant circulation and a battery coolant circulation. The refrigerant circulation comprises a compressor (1), an outside heat exchanger (4), a motor heat exchanger (10), and a battery heat exchanger (12). When a power battery is fast charged, a gaseous refrigerant flows out from an outlet of the compressor (1), passes through the outside heat exchanger (4) for heat dissipation, and then passes through the motor heat exchanger (10) for heat dissipation, to dissipate heat to the motor coolant circulation; and when passing through the battery heat exchanger (12), the refrigerant absorbs the heat of the battery coolant circulation, so as to cool the power battery. Therefore, by optimizing existing thermal management system architectures, the refrigerant circulation is associated with the coolant circulation, and radiators in the circulations are fully utilized, so that the heat dissipation efficiency is effectively improved when the power battery is fast charged.

The invention discloses an automatic control method and device for a thermal management system of an electric vehicle, relates to the field of intelligent control, and realizes multi-step prediction of battery and motor heat production and thermal load change in the future by fusing external information such as a navigation path and weather forecast, plans a thermal management strategy in advance, and improves the response perspectiveness of the system. A multi-source disturbance dynamic structured correlation equalization technology is adopted, the coupling relation between heat sources is modeled, cross disturbance is compensated through a joint state function, and multi-heat-loop cooperative control is achieved. On the basis of a model predictive control (MPC) framework, temperature tracking errors and energy consumption penalty are optimized, the energy consumption of actuators such as a compressor and a water pump is reduced while a safe temperature interval is met, and the endurance is prolonged. And in combination with a state estimator fusion model and observation data, the control precision and robustness under a complex working condition are enhanced, and finally global optimal thermal management considering the service life of parts, the comfort of passengers and the energy efficiency is realized.

A thermal management system having a battery and an electric motor, the temperature of both of which is to be controlled, wherein the electric motor is oil-cooled. The thermal management system has a monitoring system for monitoring an oil flow generated by an oil pump, in an oil cooling circuit including the electric motor. The monitoring system in this case has a first pressure sensor at a first point of the oil cooling circuit and a second pressure sensor at a second point of the oil cooling circuit and / or a speed sensor assigned to the oil pump. Also proposed is a vehicle having a thermal management system of this type.

A three dimensional (3D) integrated circuit (IC) chip can include a multi-layer structure comprising a group of vertically stacked semiconductor layers. The multi-layer structure can include a group of processor cores distributed across the semiconductor layers, and a group of Through Silicon Vias (TSVs) arranged within the layers to facilitate electrical connections between the layers. The 3D IC chip can be optimized for thermal management based on a predictive model, enabling effective temperature control when utilized with a thermal management system that monitors and adjusts a cooling strategy of the 3D IC chip.

The immersed battery pack thermal management system comprises a battery pack box body, the battery pack box body is provided with a containing cavity with an opening in the top, the containing cavity is filled with a cooling medium, and a liquid outlet is formed in the side wall of the bottom of the battery pack box body; the plurality of single batteries are arranged in the accommodating chamber and are immersed in the cooling medium; the phase change working medium is arranged in the accommodating chamber and surrounds the outer side of the single battery; the cooling box body is fixedly arranged at the top opening of the battery pack box body, the bottom surface of the cooling box body is provided with a communication port communicated with the accommodating cavity, and a liquid inlet is formed in the cooling box body; by combining static cooling, low-flow dynamic cooling, high-flow dynamic cooling and multi-layer thermal management of the phase-change material, the cooling strategy can be dynamically adjusted under different temperature conditions, efficient heat dissipation is ensured, the internal temperature of the battery pack is more uniform by using the phase-change working medium, a proper cooling mode is selected as required, and the cooling efficiency is improved. And unnecessary energy consumption is avoided.

A vehicle thermal management system includes a compressor, a first internal heat exchanger, an external heat exchanger, a second internal heat exchanger, and an integrated module. The first internal heat exchanger communicates with the air outlet of the compressor. The external heat exchanger communicates with the first internal heat exchanger through a first pipeline, with the air inlet of the compressor through a second pipeline, and with the first internal heat exchanger through a third pipeline that is connected to a second throttle element. The second internal heat exchanger communicates with the external heat exchanger through a fourth pipeline that is connected to a first throttle element, and with the air inlet. The integrated module includes a part of the first pipeline, a part of the second pipeline, a part of the third pipeline, and a part of the fourth pipeline.

A thermal management system for an electric forklift. The system includes a battery cooling circulation loop, a battery heating circulation loop, a cab cooling circulation loop, a cab heating circulation loop, a turn-on control unit, and a thermal management control module. The battery cooling circulation loop includes a battery cooling sub-loop and a refrigerant sub-loop. The battery cooling circulation loop and the refrigerant sub-loop are connected in parallel, and share an electric compressor and a condenser. The cab heating circulation loop and the battery heating circulation loop are connected in parallel, and share a heater and a second power unit. The turn-on control unit separately controls turn-on and turn-off of the loops. The thermal management control module controls the operation of the turn-on control unit and the loops according to battery temperature data in the electric forklift and / or a thermal management request inputted from the outside.

The utility model relates to a spraying type heat pipe structure and a heat management system.The spraying type heat pipe structure comprises an evaporation section, a condensation section, a liquid pump and a spraying pipe set, the evaporation section communicates with the condensation section, the liquid pump and the spraying pipe set are both arranged in the evaporation section, a power element and a liquid working medium are arranged in the evaporation section, and the liquid pump communicates with the spraying pipe set; and the liquid pump can spray the liquid working medium to the surface of the corresponding power element through the spraying pipe group, so that the liquid working medium can absorb heat, be gasified and enter the condensation section. According to the spraying type heat pipe structure and the heat management system provided by the invention, the problem that an existing cooling mode is difficult to meet the increasing heat dissipation requirement of a power element is solved.

The invention relates to a temperature control technology of an energy storage system, and discloses a temperature control system and method of a lithium ion battery energy storage system, which can realize accurate temperature control, reduce the power consumption of temperature control and reliably guarantee high-efficiency and long-life operation of the lithium ion battery energy storage system. The temperature control system comprises a battery management system, a heat management system and a battery temperature sampling unit, the battery temperature sampling unit is used for sampling the temperature of each battery cell in the energy storage system in real time; the battery management system is used for generating a temperature control strategy according to a preset temperature feature point in combination with the current temperature data of the battery cell and the current working state of the energy storage system, and issuing the temperature control strategy to the thermal management system; the temperature characteristic point is preset according to characteristic data of a battery cell used in the energy storage system; and the heat management system is used for controlling the temperature of the energy storage system by executing a temperature control strategy. The method is suitable for the energy storage system.

A thermal management system includes a compressor, a water-cooled condenser, a battery chiller, a valve body assembly, a first water pump, a second water pump, and a third water pump that are disposed in a centralized manner. The thermal management system can separately form a passenger compartment cooling loop, a passenger compartment heating loop, a battery cooling loop, a battery heating loop, and an electrical driver cooling loop, and any one or more of the passenger compartment, the battery, and the electrical driver can be cooled or heated.

The invention discloses an optimization method and system of a motor thermal management system and a motor, and the optimization method comprises the steps: building a one-dimensional motor thermal management system simulation model, and obtaining one-dimensional simulation data based on the one-dimensional motor thermal management system simulation model; optimizing the original motor thermal management system based on the one-dimensional simulation data to obtain an optimized first motor thermal management system; optimizing the optimized first motor thermal management system to obtain an optimized second motor thermal management system; the optimized second motor heat management system is tested, and heat transfer coefficients and targeted optimization points of all cooling channels under different flows are obtained; and performing parameter adjustment optimization on the one-dimensional motor thermal management system simulation model to obtain an optimized third motor thermal management system, and performing simulation verification on the optimized third motor thermal management system. According to the method, one-dimensional simulation is combined with three-dimensional simulation, so that the development time and computing resources can be greatly shortened on the premise of ensuring the accuracy of all working conditions.

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.

The invention discloses a battery prefabricated cabin intelligent refrigeration control method and system based on data driving, and relates to the technical field of battery energy storage system thermal management, and the method comprises the steps: collecting the operation multi-source data of a battery prefabricated cabin, and constructing the current thermal environment state expression; constructing a battery cabin short-term internal heat change trend prediction model based on the operation multi-source data of the battery prefabricated cabin; and according to the current thermal environment state expression and the thermal trend prediction result of the battery compartment short-term internal thermal change trend prediction model, an optimal control strategy for an air cooling, liquid cooling or composite refrigeration mode is formulated. According to the method, a closed-loop thermal management system driven by data is formed by constructing a thermal state expression module, a thermal trend prediction module and an intelligent refrigeration decision module, accurate recognition and active regulation and control of the thermal risk of the battery prefabrication cabin are achieved, the temperature control precision and the response efficiency are improved, energy consumption and over-control risks are effectively reduced, and the method is suitable for popularization and application. And the system has the advantages of remarkable engineering practical value and system intellectualization.

The invention provides a highly-integrated new energy motor home heat management system. The system comprises a refrigerating loop, a battery loop, a motor loop, a warm air loop, an engine loop, a water purification loop, a ten-way valve, a water supplementing kettle and a water supplementing pipeline. The refrigerating circuit comprises a compressor, a condenser, an electromagnetic expansion valve, an air conditioner evaporator and a chiller, the battery circuit comprises a power battery, a battery pump and a water temperature sensor, and the motor circuit comprises a motor water pump, a water temperature sensor, an electric control three-in-one unit, a driving motor, an on-off electromagnetic valve and a low-temperature radiator. The warm air loop comprises a double-area high-pressure liquid heater, a warm air pump, a cab warm air core body and a living cabin warm air core body, and the engine loop comprises an engine, an engine water pump, a water temperature sensor, a thermostat, a high-temperature radiator, an on-off electromagnetic valve and a plate heat exchanger. The water purification loop comprises a water purification tank, a water temperature sensor, a water purification pump, a three-way valve and water consumption equipment. The limo water purification system is coupled with the whole limo thermal management system, loops in the system are integrated through the heat exchanger and the ten-way valve, and maximum waste heat utilization is achieved through series-parallel connection of the loops so as to reduce energy consumption.

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.

An aircraft system is provided. The aircraft system includes: a gas turbine engine; a fuel system having a fuel tank and a fuel delivery system fluidly connecting the fuel tank to the gas turbine engine; an electric drive assembly including a component module; and a thermal management system including: a thermal fluid loop; a heat source heat exchanger in thermal communication with the component module and the thermal fluid loop; an airflow heat sink heat exchanger in thermal communication with the thermal fluid loop and further configured to be in thermal communication with a cooling airflow during operation of the gas turbine engine; and a fuel heat sink heat exchanger in selective thermal communication with the thermal fluid loop, the fuel tank, or both, the fuel heat sink heat exchanger in fluid communication with the fuel tank independently of the fuel delivery system during at least a first operating condition.

A thermal management system defines a thermal management system flowpath to provide a flow of a fluid to an electric machine and a power electronics assembly electrically connected to the electric machine. The thermal management system includes a first heat exchanger thermally connected to the thermal management system flowpath and to the electric machine, and a second heat exchanger thermally connected to the thermal management system flowpath downstream of the first heat exchanger. The second heat exchanger is thermally connected to the power electronics assembly.

The invention belongs to the field of thermal control and energy conservation of energy storage cabinets, and particularly relates to an intelligent energy-saving control method and system for a liquid-cooled thermal management system of an energy storage cabinet, and the method comprises the steps: obtaining the working state data of the energy storage cabinet and the data of the thermal management system, and introducing an electrothermal conversion model and an energy-saving cooling control model at the same time; secondly, based on the working state data of the energy storage cabinet and an electrothermal conversion model, accurately calculating electrothermal conversion efficiency and a charge-discharge-temperature rise mapping space; thirdly, inputting data of the charging and discharging-heating mapping space and the thermal management system into the energy-saving cooling control model, and generating a first cooperative control parameter and instruction; and finally, parameters and instructions are fed back to a cooperative control device, so that the state change time point and the cooling output power of the liquid cooling unit are accurately controlled, and the boosting rate of the energy storage cabinet is adjusted. According to the method, the accurate time point of cooling is effectively mastered through the accurate mapping space of the heating and cooling processes, the cooling efficiency is improved, and the cooling energy consumption is reduced.

A gearbox assembly includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, and given byVGVG⁢B.VG is a gutter volume of the gutter and VGB is a gearbox volume. A gas turbine engine includes a combustion section and the gearbox assembly. A fuel delivery system includes a fuel supply line for delivering fuel to the combustion section. A lubrication system includes a lubricant supply line for delivering lubricant to the gearbox assembly. A thermal management system includes a fuel-lubricant heat exchanger for cooling the lubricant with the fuel. The thermal management system selectively directs the fuel through fuel bypass lines or the lubricant through lubricant bypass lines to bypass the fuel-lubricant heat exchanger based on a fuel temperature or a lubricant temperature.

A thermal management system includes a compressor, a first heat exchanger, and a heat exchange assembly. An exhaust port of the compressor is connected to the heat exchange assembly, a first port of the first heat exchanger is connected to an air inlet of the compressor, and a second port of the first heat exchanger is connected to the heat exchange assembly. The heat exchange assembly includes a first heat exchange plate and a second heat exchange plate which are disposed in parallel, and each of the first heat exchange plate and the second heat exchange plate is configured for adjusting the temperature of a battery module.