A heat management system simulation method and device, electronic equipment and storage medium

Abstract

Embodiments of the present application disclose a kind of thermal management system simulation method, device, electronic equipment and storage medium.The method can include: obtaining the vehicle physical model irrelevant to temperature coupling and the temperature coupling heat source model and thermal management system model related to temperature coupling which have been built, and obtaining the automobile operating condition prepared in advance;The automobile operating condition is input into the vehicle physical model for calculation, and the vehicle demand associated with the temperature coupling heat source model is input into the temperature coupling heat source model calculated;The calculation result output by the temperature coupling heat source model is input into the thermal management system model, to complete the simulation of the thermal management system characterized by the thermal management system model.The technical scheme of the embodiment of the present application solves the problem that model building is complicated, the demand of computing power is large and the calculation period is long.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of automotive simulation technology, and in particular to a thermal management system simulation method, apparatus, electronic device and storage medium. Background Technology

[0002] In recent years, global environmental pollution and the energy crisis have become increasingly severe, posing serious challenges to the automotive industry. Faced with this dual pressure, new energy vehicles have become a key focus of research both domestically and internationally.

[0003] It should be noted that the thermal management system in new energy vehicles, as a component of the overall vehicle energy management system, interacts and constrains with it. The thermal management system affects the overall vehicle system performance and energy utilization, while its energy consumption, in turn, impacts the overall vehicle energy management. Therefore, a well-designed thermal management system is crucial for new energy vehicles.

[0004] Currently, simulation calculations based on the vehicle's energy management model are used to simulate the functions and performance of the thermal management system, thereby verifying the design's excellence. However, this approach suffers from cumbersome model building, high computational requirements, and long calculation cycles, and therefore needs improvement. Summary of the Invention

[0005] This invention provides a thermal management system simulation method, device, electronic equipment, and storage medium, which solves the problems of cumbersome model building, high computing power requirements, and long calculation cycles.

[0006] According to one aspect of the present invention, a thermal management system simulation method is provided, which may include:

[0007] Obtain the completed vehicle physical model that is independent of temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and obtain the pre-determined vehicle operating conditions.

[0008] The vehicle operating conditions are input into the vehicle physical model for calculation, and the calculated vehicle requirements associated with the temperature-coupled heat source model are input into the temperature-coupled heat source model.

[0009] The calculation results output from the temperature-coupled heat source model are input into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model.

[0010] According to another aspect of the present invention, a thermal management system simulation device is provided, which may include:

[0011] The vehicle operating condition acquisition module is used to acquire the completed vehicle physical model that is not related to temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and to acquire the pre-planned vehicle operating conditions.

[0012] The vehicle demand input module is used to input the vehicle operating conditions into the vehicle physical model for calculation, and input the calculated vehicle demand associated with the temperature-coupled heat source model into the temperature-coupled heat source model.

[0013] The first calculation result input module is used to input the calculation results output by the temperature-coupled heat source model into the thermal management system model in order to complete the simulation of the thermal management system represented by the thermal management system model.

[0014] According to another aspect of the present invention, an electronic device is provided, which may include:

[0015] At least one processor; and

[0016] A memory that is communicatively connected to at least one processor; wherein,

[0017] The memory stores a computer program that can be executed by at least one processor, such that when the at least one processor executes the program, it implements the thermal management system simulation method provided in any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided having computer instructions stored thereon for causing a processor to execute and implement the thermal management system simulation method provided in any embodiment of the present invention.

[0019] The technical solution of this invention obtains a pre-built vehicle physical model unrelated to temperature coupling, as well as a temperature-coupled heat source model and a thermal management system model related to temperature coupling. These models are obtained by decoupling the vehicle energy management model, thereby reducing the difficulty of model building. A pre-defined vehicle operating condition is obtained to simulate the thermal management system based on this condition. The vehicle operating condition is input into the vehicle physical model for calculation, and the calculated vehicle requirements associated with the temperature-coupled heat source model are input into the temperature-coupled heat source model. This allows the temperature-coupled heat source model to interact with the thermal management system model based on the vehicle requirements, achieving the simulation of the thermal management system. The calculation results output by the temperature-coupled heat source model are input into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model. This technical solution, by decoupling the vehicle energy management model which couples multiple physical fields such as mechanics, electronics, hydraulics, heat, gas, and control, yields relatively simple models, thereby reducing the difficulty of model building. Furthermore, the decoupled models can be used for parallel or serial computation to simulate the thermal management system, thereby reducing computational power requirements and shortening the computation cycle.

[0020] It should be understood that the description in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a flowchart of a thermal management system simulation method provided according to an embodiment of the present invention;

[0023] Figure 2 This is a flowchart of another thermal management system simulation method provided according to an embodiment of the present invention;

[0024] Figure 3 This is a system topology diagram of a thermal management system simulation example in another thermal management system simulation method provided according to an embodiment of the present invention;

[0025] Figure 4 This is a structural block diagram of a thermal management system simulation device provided according to an embodiment of the present invention;

[0026] Figure 5This is a structural block diagram of an electronic device that implements the thermal management system simulation method of this invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. The same applies to "target," "original," etc., and will not be repeated here. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] Figure 1 This is a flowchart of a thermal management system simulation method provided in an embodiment of the present invention. This embodiment is applicable to the simulation modeling of thermal management systems in vehicles, and is particularly applicable to the simulation modeling of thermal management systems in new energy vehicles. The method can be executed by the thermal management system simulation device provided in this embodiment of the present invention. This device can be implemented by software and / or hardware, and can be integrated into an electronic device, which can be various user terminals or servers.

[0030] See Figure 1 The method of this invention specifically includes the following steps:

[0031] S110. Obtain the completed vehicle physical model that is not related to temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and obtain the pre-determined vehicle operating conditions.

[0032] Among them, the whole vehicle physical model can be understood as a model that is independent of temperature coupling and is used to simulate the physical characteristics of the vehicle, such as the power drive system model and / or electrical system simulation model.

[0033] A temperature-coupled heat source model can be understood as a simulation model related to temperature coupling and containing the overall heat source characteristics of the vehicle. For example, it can be a temperature-coupled heat source model that includes at least one of the following: engine heat source model, electric drive heat source model, and detailed information. The detailed information can include at least one of the following: thermal conductivity, specific heat capacity, and heat transfer characteristics of each component of the vehicle.

[0034] A thermal management system model can be understood as a simulation model related to temperature coupling, used for thermal management of a system. It can include at least one of a thermal management system control model and a thermal management system simulation calculation model. The thermal management system can be simulated and controlled using this model.

[0035] Vehicle operating conditions can be understood as pre-selected information used to characterize different working states and environmental conditions of a vehicle. For example, vehicle driving conditions include at least one of urban road driving, highway driving, and mountain road driving; vehicle external environmental factors include at least one of environmental factors such as temperature, humidity, high altitude, and altitude; vehicle load conditions include the vehicle's working state under different load conditions, such as no load, full load, and traction; and vehicle driving style includes rapid acceleration, emergency braking, high-speed driving, and slow driving.

[0036] Optionally, the vehicle operating condition is a dynamic operating condition, which is determined based on test conditions and / or actual operating conditions.

[0037] Dynamic operating conditions can be understood as describing the working state of a vehicle while it is driving on a test road or an actual road.

[0038] By simulating the vehicle's thermal management system under dynamic operating conditions, we can more closely approximate real driving conditions and improve the accuracy of the thermal management system simulation.

[0039] S120. Input the vehicle operating conditions into the vehicle physical model for calculation, and input the calculated vehicle requirements associated with the temperature-coupled heat source model into the temperature-coupled heat source model.

[0040] Here, vehicle demand can be understood as the demand calculated using a vehicle physical model under automotive operating conditions, and associated with a temperature-coupled heat source model. For example, power demand could be the power demand of drive assemblies such as the engine and the power demand of energy supply assemblies such as the battery under automotive operating conditions. Optionally, for ease of calculation, vehicle demand can be represented using a time-power curve.

[0041] After obtaining the vehicle operating conditions, the vehicle physical model can be used to calculate the vehicle requirements associated with the temperature-coupled heat source model based on the vehicle operating conditions. Furthermore, the vehicle requirements can be input into the temperature-coupled heat source model for further simulation calculations.

[0042] S130. Input the calculation results output by the temperature-coupled heat source model into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model.

[0043] The thermal management system can be understood as a system that controls and manages the heat generated by a car, in order to keep the car components operating within the appropriate temperature range, improve the car's lifespan, and ensure the car's safe operation.

[0044] After the temperature-coupled heat source model performs calculations on the input vehicle, the calculation results output by the temperature-coupled heat source model are input into the thermal management system model, thus completing the simulation of the thermal management system represented by the thermal management system model.

[0045] The technical solution of this invention obtains a pre-built vehicle physical model unrelated to temperature coupling, as well as a temperature-coupled heat source model and a thermal management system model related to temperature coupling. These models are obtained by decoupling the vehicle energy management model, thereby reducing the difficulty of model building. A pre-defined vehicle operating condition is obtained to simulate the thermal management system based on this condition. The vehicle operating condition is input into the vehicle physical model for calculation, and the calculated vehicle requirements associated with the temperature-coupled heat source model are input into the temperature-coupled heat source model. This allows the temperature-coupled heat source model to interact with the thermal management system model based on the vehicle requirements, achieving the simulation of the thermal management system. The calculation results output by the temperature-coupled heat source model are input into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model. This technical solution, by decoupling the vehicle energy management model which couples multiple physical fields such as mechanics, electronics, hydraulics, heat, gas, and control, yields relatively simple models, thereby reducing the difficulty of model building. Furthermore, the decoupled models can be used for parallel or serial computation to simulate the thermal management system, thereby reducing computational power requirements and shortening the computation cycle.

[0046] An optional technical solution is that the above-mentioned thermal management system simulation method further includes: acquiring heat source parameters and a pre-built original coupled heat source model, and inputting the heat source parameters into the original coupled heat source model to obtain a temperature coupled heat source model.

[0047] Among them, heat source parameters can be understood as the relevant parameters of components in various heat source models of automobiles. For example, in the engine heat source model, the parameters of components such as the engine block, water jacket, and turbocharger water jacket include: engine displacement, number of cylinders, structural data of the block water jacket and turbocharger water jacket, heat transfer area, heat transfer coefficient, volume, heat generation of the block, and flow resistance data, etc.; in the electric drive heat source model, the structural parameters of the motor and motor controller water jacket include: heat transfer area, volume, and flow resistance data, etc.; and in the power battery thermal management system, the parameters of individual cells, battery modules, battery packs, and battery water cooling plates are also relevant. Simulation parameters for thermally conductive silicone and the power battery thermal management system include: structural parameters, mass, material properties, and charge / discharge heating characteristics of individual battery cells; the number of cells in the battery module and the connection relationships between cells and modules; the number of battery modules in the battery pack, installation layout, material properties of the battery housing, housing dimensions, and heat exchange area; density, thermal conductivity, specific heat capacity, volume, mass, flow cross-sectional area, heat exchange area, flow resistance data, and heat exchange characteristics of the water-cooled plate material; and thermal conductivity, specific heat capacity, thermally conductive contact area, and thickness of the thermally conductive silicone. The original coupled heat source model can be understood as a simulation model without inputting heat source parameters. By inputting heat source parameters into the original coupled heat source model, the temperature coupled heat source model can be obtained.

[0048] Another optional technical solution, the above-mentioned thermal management system simulation method, further includes: acquiring vehicle parameters and a pre-built original physical model, and inputting the vehicle parameters into the original physical model to obtain the vehicle physical model.

[0049] Among them, vehicle parameters can be understood as detailed parameters of various systems and components of the vehicle. For example, drive system simulation parameters include driver simulation parameters, acceleration and braking signals, vehicle cycle conditions and shifting strategies, etc.; vehicle simulation parameters include environmental parameters, vehicle weight, vehicle drag, frontal area, tire parameters and braking force, etc.; engine simulation parameters include engine stroke, displacement, number of cylinders, external characteristic data, fuel consumption data and electronic control unit data, etc.; transmission mechanism simulation parameters include gear structure parameters, transmission ratio, transmission efficiency and clutch performance data, etc.; drive motor simulation parameters include motor type, maximum motor input current and torque, motor and motor controller efficiency mean aerodynamic pressure (MAP) table, etc.; vehicle control unit (VCU) simulation parameters include vehicle operating mode switching strategy, power and torque distribution strategy and braking energy recovery strategy, etc. The simulation parameters for the automotive electrical system include: the relationship between the voltage and internal resistance of the power battery and the battery's state of charge, temperature, and current; the efficiency of the DC / DC converter; the input voltage, current, and efficiency of the positive temperature coefficient thermistor; the open-circuit voltage and internal resistance of the low-voltage battery; and the voltage, current, and efficiency of the electric water pump, electric fan, blower, compressor, and other electrical loads during operation. The original physical model can be understood as a physical simulation model without input vehicle parameters. By inputting vehicle parameters into the original physical model, the complete vehicle physical model can be obtained.

[0050] Another optional technical solution is that the above-mentioned thermal management system simulation method further includes: the thermal management system model includes a thermal management system simulation calculation model, the thermal management system parameters and a pre-built original simulation calculation model are obtained, and the thermal management system parameters are input into the original simulation calculation model to obtain the thermal management system simulation calculation model.

[0051] The thermal management system simulation calculation model can be understood as a model for simulating the thermal management system; the original simulation calculation model can be understood as a simulation model without inputting thermal management system parameters. By inputting thermal management system parameters into the original simulation calculation model, the thermal management system simulation calculation model can be obtained.

[0052] Thermal management system parameters can be understood as the parameters of each component in the thermal management system, such as the parameters of the heating mass block, including mass, specific heat capacity, flow resistance curve, contact area with the environment, and surface heat transfer coefficient; pump parameters, including the performance MAP of pump speed-head-flow rate-pressure rise-efficiency; compressor parameters, including the performance MAP of speed-pressure rise-volume efficiency-isentropic efficiency; the core geometric parameters, flow resistance, and heat transfer characteristics of radiators, evaporators, and condensers; the total volume and initial liquid volume of the expansion tank; and the flow resistance curves of multi-way valves at different flow rates.

[0053] By constructing simulation models with different functions, the difficulty of building simulation models is reduced, and the model building cycle is shortened.

[0054] Another optional technical solution is that the thermal management system model includes a thermal management system control model, and the method further includes: obtaining the control logic of the thermal management system, and building the thermal management system control model based on the control logic.

[0055] The thermal management system control model can be understood as a model for simulating and controlling the thermal management system, which can be built based on the control logic used to control the thermal management system.

[0056] By building a control model for the thermal management system, the control process of the thermal management system can be simulated, thereby improving the overall simulation effect.

[0057] Figure 2 This is a flowchart of another thermal management system simulation method provided in this embodiment of the invention. This embodiment is based on and optimized from the above-described technical solutions. Optionally, in this embodiment, after inputting the calculation results output by the temperature-coupled heat source model into the thermal management system model, the above-described thermal management system simulation method further includes: inputting the calculation results output by the thermal management system model into the temperature-coupled heat source model to simulate the interaction between the heat source represented by the temperature-coupled heat source model and the thermal management system. The explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here.

[0058] See Figure 2 The method in this embodiment may specifically include the following steps:

[0059] S210. Obtain the completed vehicle physical model that is not related to temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and obtain the pre-determined vehicle operating conditions.

[0060] S220. Input the vehicle operating conditions into the vehicle physical model for calculation, and input the calculated vehicle requirements associated with the temperature-coupled heat source model into the temperature-coupled heat source model.

[0061] S230. Input the calculation results output by the temperature-coupled heat source model into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model.

[0062] S240. Input the calculation results output by the thermal management system model into the temperature-coupled heat source model to simulate the interaction between the heat source and the thermal management system as represented by the temperature-coupled heat source model.

[0063] By inputting the calculation results output by the thermal management system model into the temperature-coupled heat source model, mutual communication between the temperature-coupled heat source model and the thermal management system is realized, which can better simulate the mutual influence between the heat source and the thermal management system represented by the temperature-coupled heat source model.

[0064] The technical solution of this invention realizes mutual communication between the temperature-coupled heat source model and the thermal management system by inputting the calculation results output by the thermal management system model into the temperature-coupled heat source model. This can accurately reflect the mutual influence between the various systems while ensuring high-speed calculation of each model, thus ensuring the accuracy of the simulation calculation.

[0065] An optional technical solution involves bidirectional communication between the thermal management system model and the temperature-coupled heat source model, achieved through a pre-established information acquisition and transmission module.

[0066] The information acquisition and transmission module can be understood as a module that acquires and transmits the output results of the thermal management system model and the temperature-coupled heat source model, so as to realize mutual communication between the thermal management system model and the temperature-coupled heat source model.

[0067] The information acquisition and transmission module enables rapid two-way communication between the thermal management system model and the temperature-coupled heat source model.

[0068] To better understand the thermal management system simulation process described above, a specific example is provided below. For an example, see the system topology diagram of the thermal management system simulation example. Figure 3 The specific implementation process is as follows:

[0069] Step 1: Establish a simulation calculation model and a control model for the thermal management system.

[0070] (1): The simulation calculation model of the thermal management system includes, but is not limited to, heat sources, water pumps, compressors, radiators, evaporators, condensers, expansion tanks, multi-way valves, expansion valves, and connecting pipelines. The heat source here is essentially a heat-generating mass block, and the required parameters are only mass, specific heat capacity, flow resistance curve, contact area with the environment, and surface heat transfer coefficient; the parameters of the water pump include the performance MAP diagram of the pump speed-head-flow rate-pressure rise-efficiency; the required parameters of the compressor are the performance MAP diagram of speed-pressure rise-volume efficiency-isentropic efficiency; the radiators, evaporators, and condensers require core geometric parameters, flow resistance, and heat transfer characteristic parameters; the expansion tank requires total volume and initial liquid volume; the multi-way valve requires flow resistance curves at different flow rates; in order to further improve the calculation efficiency, the pipeline part is equivalently represented by flow resistance. After the thermal management system parameters are input, the model is built according to the thermal management system schematic diagram.

[0071] (2): Build a control model for the thermal management system based on the control logic of the thermal management system.

[0072] Step 2: Establish a temperature-coupled heat source model and a vehicle physical model.

[0073] (1): The temperature-coupled heat source model here is a detailed model with assembly features. The components of the engine heat source model include, but are not limited to, the engine block, water jacket, and turbocharger water jacket. Specific parameters include engine displacement, number of cylinders, structural data of the cylinder block water jacket and turbocharger water jacket, heat transfer area, heat transfer coefficient, volume, cylinder block heat generation, and flow resistance data, etc.; the electric drive heat source model includes the structural parameters, heat transfer area, volume, and flow resistance data of the motor and motor controller water jacket, etc.; the components of the power battery thermal management system include, but are not limited to, individual battery cells, battery modules, battery packs, battery water cooling plates, thermally conductive silicone, and power batteries. The simulation parameters of the thermal management system include: structural parameters, mass, material properties, and charging / discharging heat generation characteristics of individual battery cells; the number of battery cells in the battery module and the connection relationships between cells and modules; the number of battery modules in the battery pack, installation layout, material properties of the battery box, box dimensions, and heat exchange area; the density, thermal conductivity, specific heat capacity, volume, mass, flow cross-sectional area, heat exchange area, flow resistance data, and heat exchange characteristics of the water-cooled plate material; and the thermal conductivity, specific heat capacity, thermal contact area, and thickness of the thermally conductive silicone.

[0074] (2): The physical model of the whole vehicle includes, but is not limited to, the power drive system model and the electrical system simulation model. The simulation parameters of the drive system include: driver simulation parameters: acceleration and braking signals, vehicle cycle conditions, shifting strategies, etc.; vehicle simulation parameters: environmental parameters, vehicle weight, vehicle drag, frontal area, tire parameters and braking force, etc.; engine simulation parameters: engine stroke, displacement, number of cylinders, external characteristic data, fuel consumption data, electronic control unit data, etc.; transmission mechanism simulation parameters: gear structure parameters, transmission ratio, transmission efficiency, clutch performance data, etc.; drive motor simulation parameters: motor type, maximum input current and torque of the motor, efficiency MAP table of the motor and motor controller, etc.; vehicle control system simulation parameters: vehicle operating mode switching strategy, power and torque distribution strategy, braking energy recovery strategy, etc. The simulation parameters of automotive electrical systems include the relationship between the voltage and internal resistance of the power battery and the changes in the battery's state of charge, temperature and current; the efficiency of the DC / DC converter; the input voltage, current and efficiency of the positive temperature coefficient thermistor; the open circuit voltage and internal resistance of the low-voltage battery; and the voltage, current and efficiency of the electric water pump, electric fan, blower, compressor and other electrical loads during operation.

[0075] Step 3: Determine the dynamic operating conditions.

[0076] The dynamic operating conditions should be as close as possible to the test conditions and actual driving conditions. The required dynamic operating condition information includes, but is not limited to, information such as ambient temperature, humidity, altitude, vehicle speed and road conditions.

[0077] Step 4: Input the vehicle operating conditions into the vehicle physical model for calculation to obtain the vehicle demand. The vehicle demand can be the curves showing the power demand of the drive assembly such as electric drive and engine changing over time, as well as the curves showing the power demand of the power supply assembly such as battery changing over time.

[0078] Step 5: Input the vehicle requirements obtained in Step 4 into the temperature-coupled heat source model through the information acquisition and transmission module. Use the information acquisition and transmission module to realize real-time interactive communication between the thermal management simulation calculation model, the thermal management system control model and the temperature-coupled heat source model to complete the thermal management system simulation.

[0079] The technical solution in this specific example decouples the vehicle energy management model, which is coupled with multiple physical fields such as mechanics, electricity, hydraulics, heat, gas, and control, to obtain models with relatively simple structures, thereby reducing the difficulty of model building. Moreover, the decoupled models can be used to simulate the thermal management system through parallel or serial computing, thereby reducing the computing power requirements and shortening the computing cycle.

[0080] Figure 4 This is a structural block diagram of a thermal management system simulation device provided in an embodiment of the present invention. This device is used to execute the thermal management system simulation method provided in any of the above embodiments. This device and the thermal management system simulation methods of the above embodiments belong to the same inventive concept. Details not described in detail in the embodiments of the thermal management system simulation device can be found in the embodiments of the above thermal management system simulation methods. See also... Figure 4 The device may specifically include: a vehicle operating condition acquisition module 310, a vehicle demand input module 320, and a first calculation result input module 330.

[0081] The vehicle operating condition acquisition module 310 is used to acquire the completed vehicle physical model that is not related to temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and to acquire the pre-planned vehicle operating conditions.

[0082] The vehicle demand input module 320 is used to input the vehicle operating conditions into the vehicle physical model for calculation, and input the calculated vehicle demand associated with the temperature-coupled heat source model into the temperature-coupled heat source model.

[0083] The first calculation result input module 330 is used to input the calculation results output by the temperature coupled heat source model into the thermal management system model in order to complete the simulation of the thermal management system represented by the thermal management system model.

[0084] An optional thermal management system simulation device also includes:

[0085] The second calculation result input module is used to input the calculation results output by the temperature-coupled heat source model into the thermal management system model after inputting the calculation results output by the thermal management system model into the thermal management system model, so as to simulate the mutual influence between the heat source and the thermal management system represented by the temperature-coupled heat source model.

[0086] Based on this, optionally, bidirectional communication between the thermal management system model and the temperature-coupled heat source model can be achieved through a pre-established information acquisition and transmission module.

[0087] Based on this, optionally, the thermal management system model includes a thermal management system control model and a thermal management system simulation calculation model;

[0088] Bidirectional communication between the temperature-coupled heat source model, the thermal management system control model, and the thermal management system simulation calculation model is achieved through the information acquisition and transmission module.

[0089] Another optional thermal management system simulation device also includes:

[0090] A temperature-coupled heat source model acquisition module is used to obtain heat source parameters and a pre-built original coupled heat source model, and input the heat source parameters into the original coupled heat source model to obtain the temperature-coupled heat source model; and / or,

[0091] The vehicle physical model acquisition module is used to obtain vehicle parameters and a pre-built original physical model, and input the vehicle parameters into the original physical model to obtain the vehicle physical model; and / or,

[0092] The thermal management system model includes a thermal management system simulation calculation model;

[0093] The thermal management system simulation calculation model acquisition module is used to obtain the thermal management system parameters and the pre-built original simulation calculation model, and input the thermal management system parameters into the original simulation calculation model to obtain the thermal management system simulation calculation model.

[0094] Another option is that the thermal management system model includes a thermal management system control model, a thermal management system simulation device, and also includes:

[0095] The thermal management system control model building module is used to obtain the control logic of the thermal management system and build the thermal management system control model based on the control logic.

[0096] Alternatively, the vehicle operating condition is a dynamic operating condition, which is determined based on test conditions and / or actual operating conditions.

[0097] The thermal management system simulation device provided in this embodiment of the invention acquires a pre-built vehicle physical model unrelated to temperature coupling, as well as a temperature-coupled heat source model and a thermal management system model related to temperature coupling, through a vehicle operating condition acquisition module. The acquired models are obtained by decoupling the vehicle energy management model, thereby reducing the difficulty of model construction. It acquires pre-determined vehicle operating conditions to simulate the thermal management system based on these conditions. Through a vehicle demand input module, the vehicle operating conditions are input into the vehicle physical model for calculation, and the calculated vehicle demand associated with the temperature-coupled heat source model is input into the temperature-coupled heat source model, enabling the temperature-coupled heat source model to interact with the thermal management system model based on the vehicle demand, thus realizing the simulation of the thermal management system. Through a first calculation result input module, the calculation results output by the temperature-coupled heat source model are input into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model. The aforementioned thermal management system simulation device decouples the vehicle energy management model, which couples multiple physical fields such as mechanics, electricity, hydraulics, heat, gas, and control, to obtain models with relatively simple structures, thereby reducing the difficulty of model building. Moreover, the decoupled models can be used to simulate the thermal management system through parallel or serial computation, thereby reducing the computing power requirements and shortening the computation cycle.

[0098] The thermal management system simulation device provided in this embodiment of the invention can execute the thermal management system simulation method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0099] It is worth noting that in the embodiments of the above-mentioned thermal management system simulation device, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0100] Figure 5 A schematic diagram of an electronic device that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0101] like Figure 5The electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer programs stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0102] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0103] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as thermal management system simulation methods.

[0104] In some embodiments, the thermal management system simulation method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the thermal management system simulation method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the thermal management system simulation method by any other suitable means (e.g., by means of firmware).

[0105] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0106] Computer programs used to implement the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The computer programs can be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0107] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0108] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0109] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0110] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0111] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A simulation method for a thermal management system, characterized in that, include: Acquire the completed vehicle physical model that is independent of temperature coupling, as well as the temperature-coupled heat source model and thermal management system model that are related to temperature coupling, and acquire the pre-determined vehicle operating conditions. The vehicle physical model is independent of temperature coupling and is used to simulate the physical characteristics of the vehicle. The vehicle operating conditions are input into the vehicle physical model for calculation, and the calculated vehicle requirements associated with the temperature-coupled heat source model are input into the temperature-coupled heat source model. The calculation results output by the temperature-coupled heat source model are input into the thermal management system model to complete the simulation of the thermal management system represented by the thermal management system model. The calculation results output by the thermal management system model are input into the temperature-coupled heat source model to simulate the interaction between the heat source represented by the temperature-coupled heat source model and the thermal management system.

2. The method according to claim 1, characterized in that, The bidirectional communication between the thermal management system model and the temperature-coupled heat source model is achieved through a pre-established information acquisition and transmission module.

3. The method according to claim 2, characterized in that, The thermal management system model includes a thermal management system control model and a thermal management system simulation calculation model. The bidirectional communication between the temperature-coupled heat source model, the thermal management system control model, and the thermal management system simulation calculation model is achieved through the information acquisition and transmission module.

4. The method according to claim 1, characterized in that: The method further includes: acquiring heat source parameters and a pre-built original coupled heat source model, and inputting the heat source parameters into the original coupled heat source model to obtain the temperature coupled heat source model; And / or, The method further includes: acquiring vehicle parameters and a pre-built original physical model, and inputting the vehicle parameters into the original physical model to obtain the vehicle physical model; And / or, The thermal management system model includes a thermal management system simulation calculation model. The method further includes: acquiring thermal management system parameters and a pre-built original simulation calculation model, and inputting the thermal management system parameters into the original simulation calculation model to obtain the thermal management system simulation calculation model.

5. The method according to claim 1, characterized in that, The thermal management system model includes a thermal management system control model, and the method further includes: The control logic of the thermal management system is obtained, and the control model of the thermal management system is built based on the control logic.

6. The method according to claim 1, characterized in that, The vehicle operating conditions are dynamic operating conditions, which are determined based on test conditions and / or actual operating conditions.

7. A thermal management system simulation device, characterized in that, include: The vehicle operating condition acquisition module is used to acquire the completed vehicle physical model that is independent of temperature coupling, as well as the temperature coupling heat source model and thermal management system model that are related to temperature coupling, and to acquire the pre-planned vehicle operating conditions. The vehicle physical model is independent of temperature coupling and is used to simulate the physical characteristics of the vehicle. The vehicle demand input module is used to input the vehicle operating conditions into the vehicle physical model for calculation, and input the calculated vehicle demand associated with the temperature-coupled heat source model into the temperature-coupled heat source model. The first calculation result input module is used to input the calculation results output by the temperature-coupled heat source model into the thermal management system model in order to complete the simulation of the thermal management system represented by the thermal management system model. The thermal management system simulation device further includes: The second calculation result input module is used to input the calculation results output by the thermal management system model into the temperature-coupled heat source model after inputting the calculation results output by the temperature-coupled heat source model into the thermal management system model, so as to simulate the mutual influence between the heat source represented by the temperature-coupled heat source model and the thermal management system.

8. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to cause the at least one processor to perform the thermal management system simulation method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute and implement the thermal management system simulation method as described in any one of claims 1-6.

Images