Method and device for determining lubrication data of vehicle and storage medium

Abstract

The invention discloses a method and device for determining lubrication data of a vehicle and a storage medium. The method comprises the steps that operation condition information of a transmission system of the vehicle is obtained, and the operation condition information at least comprises structure performance information of a plurality of lubricating assemblies in the transmission system when the vehicle is under different working conditions; based on the operation condition information, hybrid simulation data of the transmission system is determined, and the hybrid simulation data is used for indicating data, related to a splash lubrication type and an active lubrication type, of each lubrication assembly in the transmission system; on the basis of the hybrid simulation data, lubrication data of all lubrication assemblies in the transmission system are determined, and the lubrication data are used for indicating the lubrication performance of the corresponding lubrication assemblies. According to the invention, the technical problem of low simulation precision of the vehicle transmission system is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular, to a method, device, and storage medium for determining lubrication data of a vehicle. Background Art

[0002] The transmission assembly is a key component of a vehicle's powertrain, and its performance directly impacts a vehicle's power, economy, and handling. Active lubrication and splash lubrication in the transmission assembly form a hybrid lubrication system, providing lubricant to the relatively moving parts. This creates fluid friction, reduces frictional resistance, alleviates component wear, and cleans and cools the surface of the parts, extending the service life of the transmission assembly. Besides experimental methods, simulation is also an important verification method for the effectiveness of transmission assembly lubrication, providing a visual understanding of the lubricant distribution across the assembly. During the product design phase, lubrication system simulation analysis can optimize system design, reduce design risks, shorten development cycles, reduce testing costs, and improve transmission system performance.

[0003] In related technologies, simulation results are typically limited to one-dimensional simulations. While traditional one-dimensional lubrication simulations simplify the computational model to a certain extent, their main drawback is the inability to fully couple the three-dimensional simulation results. This limitation makes it difficult to guarantee simulation accuracy when dealing with complex geometries and multi-dimensional load conditions. Consequently, low simulation accuracy in vehicle transmission systems remains a technical issue. Currently, no effective solution has been proposed to address this issue in related technologies. Summary of the Invention

[0004] The main purpose of this application is to provide a method, device and storage medium for determining lubrication data of a vehicle to solve the technical problem of low simulation accuracy of a vehicle transmission system in related technologies.

[0005] According to one aspect of an embodiment of the present invention, a method for determining lubrication data of a vehicle is provided, comprising: obtaining operating condition information of a transmission system of the vehicle, wherein the operating condition information includes at least structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions; determining hybrid simulation data of the transmission system based on the operating condition information, wherein the hybrid simulation data is used to indicate data related to splash lubrication type and active lubrication type of each lubrication component in the transmission system; and determining lubrication data of each lubrication component in the transmission system based on the hybrid simulation data, wherein the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component.

[0006] Optionally, based on the operating condition information, hybrid simulation data of the transmission system is determined, including: based on the operating condition information, determining the active lubrication data and splash lubrication data of the vehicle's transmission system, wherein the active lubrication data is used to indicate data related to active lubrication of the transmission system, the active lubrication data includes simulation data in a one-dimensional simulation model of the transmission system, and simulation data in a three-dimensional simulation model of the transmission system, the simulation accuracy of the three-dimensional simulation model is different from the simulation accuracy of the one-dimensional simulation model, and the splash lubrication data is used to indicate data related to splash lubrication of the transmission system; the active lubrication data and the splash lubrication data are merged to obtain the hybrid simulation data of the transmission system.

[0007] Optionally, based on the operating condition information, the splash lubrication data of the vehicle's transmission system is determined, including: based on the motion condition information, determining the oil quantity motion data of the transmission system, wherein the oil quantity motion data at least includes the particle motion path and lubricating oil quantity data of the transmission system; integrating the oil quantity motion data to obtain the splash lubrication data.

[0008] Optionally, based on the operating condition information, active lubrication data of the vehicle's transmission system is determined, including: determining one-dimensional simulation data of the transmission system based on the operating condition information, wherein the one-dimensional simulation data is used to indicate simulation data in a one-dimensional simulation model of the transmission system; determining three-dimensional simulation data of the vehicle's transmission system based on the one-dimensional simulation data, wherein the three-dimensional simulation data is used to indicate simulation data in a three-dimensional simulation model of the transmission system; and integrating the one-dimensional simulation data with the three-dimensional simulation data to obtain active lubrication data.

[0009] Optionally, based on the one-dimensional simulation data, three-dimensional simulation data of the vehicle's transmission system is determined, including: based on the operating condition information, determining the demand data of the transmission system, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component of the transmission system must meet; comparing the demand data with the one-dimensional simulation data to obtain a first comparison result, wherein the first comparison result is used to indicate the degree of matching between the one-dimensional simulation data and the demand data; based on the first comparison result, adjusting the one-dimensional simulation data to obtain adjusted one-dimensional simulation data; based on the adjusted one-dimensional simulation data, establishing a three-dimensional simulation model of the transmission system; based on the three-dimensional simulation model, determining the motion data of the three-dimensional simulation model, wherein the motion data is used to indicate the fluid motion in the three-dimensional simulation model; integrating the motion data to determine the three-dimensional simulation data.

[0010] Optionally, based on the hybrid simulation data, the lubrication data of each lubrication component in the transmission system is determined, including: comparing the hybrid simulation data with the demand data to obtain a second comparison result, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component in the transmission system need to meet, and the second comparison result is used to indicate the degree of matching between the hybrid simulation data and the demand data; based on the second comparison result, the hybrid simulation data is adjusted to obtain lubrication data.

[0011] According to another aspect of an embodiment of the present invention, a device for determining lubrication data of a vehicle is provided. The device may include: an acquisition unit for acquiring operating condition information of a vehicle's transmission system, wherein the operating condition information includes at least structural performance information of multiple lubrication components in the transmission system under different vehicle operating conditions; a first determination unit for determining hybrid simulation data of the transmission system based on the operating condition information, wherein the hybrid simulation data indicates data related to splash lubrication and active lubrication for each lubrication component in the transmission system; and a second determination unit for determining lubrication data of each lubrication component in the transmission system based on the hybrid simulation data, wherein the lubrication data indicates the lubrication performance of the corresponding lubrication component.

[0012] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the method for determining the lubrication data of a vehicle in an embodiment of the present invention.

[0013] According to another aspect of an embodiment of the present invention, a processor is provided, which is configured to run a program, wherein when the program is run, the method for determining lubrication data of a vehicle according to an embodiment of the present invention is executed.

[0014] According to another aspect of an embodiment of the present invention, a vehicle is provided, which is used to execute the method for determining lubrication data of a vehicle according to an embodiment of the present invention.

[0015] In an embodiment of the present invention, the operating condition information of the transmission system of the vehicle is obtained, wherein the operating condition information includes at least structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions; based on the operating condition information, the hybrid simulation data of the transmission system is determined, wherein the hybrid simulation data is used to indicate data related to the splash lubrication type and the active lubrication type of each lubrication component in the transmission system; based on the hybrid simulation data, the lubrication data of each lubrication component in the transmission system is determined, wherein the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component. The present application obtains the hybrid simulation data of the transmission system by processing the operating condition information of the transmission system, and thus determines the lubrication data of each lubrication component in the transmission system based on the hybrid simulation data. Since the present application determines the hybrid simulation data of the transmission system, rather than being limited to the one-dimensional simulation data of the transmission system, the purpose of determining the simulation model from multiple angles is achieved, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 is a schematic diagram of a method for determining lubrication data of a vehicle according to an embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of a one-dimensional simulation of active lubrication provided according to an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a three-dimensional simulation of active lubrication provided according to an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of a mixed lubrication simulation provided according to an embodiment of the present application;

[0021] Figure 5 4 is a schematic diagram of a device for determining lubrication data of a vehicle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] According to an embodiment of the present invention, an embodiment of a method for determining lubrication data of a vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0025] Figure 1 FIG. 1 is a schematic diagram of a method for determining lubrication data of a vehicle according to an embodiment of the present invention. Figure 1 As shown, the method includes the following steps:

[0026] Step S101: Acquire operating condition information of the vehicle's transmission system.

[0027] In the technical solution provided in the above step S101 of the present invention, the operating condition information at least includes structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions, wherein the transmission system can also be called an assembly lubrication system, and the lubrication components can also be called lubrication parts.

[0028] In this embodiment, the operating condition information of the vehicle's transmission system is obtained. For example, sensors such as temperature sensors, vibration sensors, and pressure sensors are installed at key locations of the transmission system. These sensors can monitor the status of the lubrication components in real time, thereby determining the operating condition information of the transmission system based on the monitored status. This is only an illustrative example and does not limit the specific method for obtaining the operating condition information of the vehicle's transmission system.

[0029] Optionally, the motion condition information may include at least the shape, position and power of the lubrication component, wherein the lubrication component may also be referred to as a lubrication part.

[0030] Alternatively, obtaining information about the vehicle's transmission system's operating conditions can help engineers more accurately model each lubrication component within the transmission system, generating accurate modeling results. This precise modeling can better simulate actual behavior under different operating conditions, increasing the credibility of simulation results.

[0031] Step S102: Determine hybrid simulation data of the transmission system based on the operating condition information.

[0032] In the technical solution provided in the above step S102 of the present invention, the hybrid simulation data is used to indicate data related to the splash lubrication type and the active lubrication type of each lubrication component in the transmission system, wherein the active lubrication type can also be called active lubrication, and the splash lubrication type can also be called splash lubrication.

[0033] In this embodiment, after obtaining the operating condition information of the vehicle's transmission system in step S101, hybrid simulation data for the transmission system is determined based on the operating condition information. For example, the operating condition information of the transmission system is processed to establish a simulation model of the transmission system, and the hybrid simulation data for the transmission system is determined based on the simulation model. This is merely an example and does not limit the specific method for determining the hybrid simulation data for the transmission system.

[0034] For example, simulation software is first used to simulate and optimize active lubrication in one dimension. A one-dimensional flow simulation model is established, and the one-dimensional flow simulation model is analyzed to obtain the one-dimensional lubrication simulation analysis results. Secondly, combined with the one-dimensional lubrication simulation analysis results, each lubrication point is further analyzed, and 3D simulation software is used for auxiliary calculations. The one-dimensional calculation results are compared and analyzed. The structural dimensions are further optimized by coupling the three-dimensional and one-dimensional models, and the final active lubrication simulation analysis results are obtained. Next, a hybrid lubrication simulation model is established, and the splash lubrication data within the hybrid lubrication simulation model is determined. The active and splash lubrication data are then integrated to determine the hybrid simulation data for the transmission system.

[0035] Optionally, by simulating splash lubrication and active lubrication, the distribution of lubricant in the transmission system can be predicted more accurately, thereby improving the accuracy of friction and wear analysis of various lubricated components and thus increasing the credibility of simulation results.

[0036] Step S103: determining lubrication data of each lubrication component in the transmission system based on the hybrid simulation data.

[0037] In the technical solution provided in the above step S103 of the present invention, the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component.

[0038] In this embodiment, after determining the hybrid simulation data of the transmission system in step S102, lubrication data of each lubricated component in the transmission system is determined based on the hybrid simulation data. For example, the lubrication components are analyzed using sensors and combined with the hybrid simulation data to determine the lubrication data of each lubricated component in the transmission system.

[0039] For example, a simulation calculation is started to solve the mixed simulation data. After the solution is completed, the lubrication flow field diagram and the churning oil lubrication flow field animation at any moment can be viewed to understand the overall lubrication condition of the assembly. Among them, the lubrication flow field diagram and the churning oil lubrication flow field animation are important tools for studying and visualizing the flow behavior of fluids in lubrication systems. They are usually used in engineering and mechanical design fields to help engineers understand the flow characteristics of fluids under different conditions, thereby optimizing the performance of the lubrication system; define wet wall sensors to analyze the wet wall area of ​​each lubrication component and further understand the lubrication condition of the specific structure; define streamline sensors to view the particle motion path and observe the splashing of lubricating oil; define flow sensors to measure the amount of lubricating oil flowing through the sensor and quantitatively judge the lubrication condition of the local position of the assembly, thereby determining the lubrication data of each lubricating component in the transmission system based on the particle motion path and the amount of lubricating oil.

[0040] Alternatively, more precise hybrid simulation data can be used to more accurately predict the performance of individual lubricated components. This helps optimize lubricant selection and lubrication system design, ensuring that the transmission system maintains excellent lubrication under various operating conditions. Accurate simulation can also help identify factors that may cause wear or failure under different operating conditions, leading to the development of more effective lubrication strategies and extending the service life of the transmission system and its components.

[0041] It should be noted that the above embodiment can be executed by a device for determining lubrication data of a vehicle.

[0042] In this embodiment, the operating condition information of the vehicle's transmission system is obtained, wherein the operating condition information includes at least structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions; based on the operating condition information, hybrid simulation data of the transmission system is determined, wherein the hybrid simulation data is used to indicate data related to splash lubrication type and active lubrication type of each lubrication component in the transmission system; based on the hybrid simulation data, lubrication data of each lubrication component in the transmission system is determined, wherein the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component. The present application obtains hybrid simulation data of the transmission system by processing the operating condition information of the transmission system, and thus determines the lubrication data of each lubrication component in the transmission system based on the hybrid simulation data. Since the present application determines the hybrid simulation data of the transmission system, rather than being limited to the one-dimensional simulation data of the transmission system, the purpose of determining the simulation model from multiple angles is achieved, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system.

[0043] The above method of this embodiment is further introduced below.

[0044] As an optional embodiment, step S102 determines hybrid simulation data of the transmission system based on operating condition information, including: determining active lubrication data and splash lubrication data of the vehicle's transmission system based on the operating condition information, wherein the active lubrication data is used to indicate data related to active lubrication of the transmission system, the active lubrication data includes simulation data in a one-dimensional simulation model of the transmission system, and simulation data in a three-dimensional simulation model of the transmission system, the simulation accuracy of the three-dimensional simulation model is different from the simulation accuracy of the one-dimensional simulation model, and the splash lubrication data is used to indicate data related to splash lubrication of the transmission system; the active lubrication data and the splash lubrication data are merged to obtain hybrid simulation data of the transmission system.

[0045] In this embodiment, the active lubrication data and splash lubrication data of the vehicle's transmission system are determined based on the operating condition information, wherein the active lubrication data at least includes but is not limited to: data of structures such as the filter element, lubricating oil pump, overflow valve, and injection pipe, and the splash lubrication data at least includes: data of structures such as the housing, rotating parts, and guide structure.

[0046] Optionally, after determining the active lubrication data and the splash lubrication data, the active lubrication data and the splash lubrication data are merged to obtain hybrid simulation data of the transmission system. By combining the two types of lubrication data, the simulation model can more accurately predict the system behavior in the real world, thereby improving the prediction accuracy and reliability.

[0047] As an optional embodiment, based on the operating condition information, the splash lubrication data of the vehicle's transmission system is determined, including: based on the motion condition information, determining the oil quantity motion data of the transmission system, wherein the oil quantity motion data at least includes the particle motion path and lubricating oil quantity data of the transmission system; integrating the oil quantity motion data to obtain the splash lubrication data.

[0048] In this embodiment, the transmission system's oil quantity movement data is determined based on the motion condition information. For example, simulation software is used to determine a splash simulation model for the transmission system based on the motion condition information, and the transmission system's oil quantity movement data is then determined based on the splash simulation model. This is merely an example and does not limit the specific method for determining the transmission system's oil quantity movement data.

[0049] For example, using simulation software to simulate and optimize mixed lubrication in a transmission system involves three steps: model pre-processing, simulation calculation, and post-processing. These three steps can determine the oil flow data for the transmission system.

[0050] For example, during model pre-processing, the simulation inputs for the 3D simulation model of the transmission system are first verified to ensure the housing cavity is completely enclosed, the gears are properly meshed and free of interference, and all components are properly connected. The 3D simulation model is saved as a file format accessible by the pre-processing software. The 3D model is then opened using the pre-processing software and the lubrication components are grouped. The principle is that all lubrication components within a group share the same rotating axis, direction of rotation, and speed under all operating conditions. Non-rotating components are grouped separately. Each group of lubrication components is saved and exported in a file format accessible by the simulation software.

[0051] For example, for simulation calculations: Open the simulation software, import all groups of the geometric model, define the motion rules for each group, adjust the coordinate system, set the rotation center, and define the rotation speed. Initialize the lubricant, generate the fluid source, particle source, and fluid solution group, define the oil level height or maximum oil injection volume, define relevant parameters such as particle diameter and lubricant in the property bar, adjust the initial oil level angle based on the input working condition boundaries, and preview the particle generation status. Put the simulation model into the solution state and start the simulation calculation.

[0052] For another example, in post-processing of the results: after the solution is completed, the lubrication flow field diagram and the oil-stirring lubrication flow field animation can be viewed at any time to understand the overall lubrication condition of the assembly; a wet wall sensor can be defined to analyze the wet wall area of ​​the lubrication component to further understand the lubrication condition of the specific structure; a streamline sensor can be defined to view the particle motion path and observe the splashing of the lubricating oil; a flow sensor can be defined to measure the amount of lubricating oil flowing through the sensor to quantitatively judge the lubrication condition of a local position of the assembly, thereby determining the oil quantity movement data of the transmission system based on the particle motion path and the amount of lubricating oil.

[0053] Optionally, after determining the oil flow rate data, the data can be integrated to generate splash lubrication data. By analyzing the oil flow rate data and splash lubrication data, the design and operating parameters of the lubrication system can be optimized to ensure that the lubricant fully covers key components and improve the lubrication effect of the equipment.

[0054] As an optional embodiment, active lubrication data of a vehicle's transmission system is determined based on operating condition information, including: determining one-dimensional simulation data of the transmission system based on the operating condition information, wherein the one-dimensional simulation data is used to indicate simulation data in a one-dimensional simulation model of the transmission system; determining three-dimensional simulation data of the vehicle's transmission system based on the one-dimensional simulation data, wherein the three-dimensional simulation data is used to indicate simulation data in a three-dimensional simulation model of the transmission system; and integrating the one-dimensional simulation data with the three-dimensional simulation data to obtain active lubrication data.

[0055] In this embodiment, one-dimensional simulation data of the transmission system is determined based on the operating condition information. For example, the one-dimensional simulation data of the transmission system is determined based on the operating condition information using simulation software. This is merely an example and does not limit the specific method of determining the one-dimensional simulation data of the transmission system.

[0056] For example, based on the power loss of each lubrication part of the transmission assembly under different operating conditions, that is, the operating condition information, the required oil volume is calculated, and the total system oil volume required is summarized to select the oil pump. Based on the overall layout of the assembly lubrication system, the lubrication structure is extracted, and the oil pump, pipeline, housing oil channel and other structures are parameterized using simulation software. The corresponding components are selected to build a lubrication simulation model. The sub-model is selected, the lubrication model operating conditions and the component parameters of each lubrication component are set, and steady-state simulation calculations are performed to check the operating status of the lubrication system under different operating conditions, and the lubricating oil flow and pressure results at each lubrication node. In other words, the operating status of the lubrication system under different operating conditions and the lubricating oil flow and pressure results at each lubrication node are integrated to obtain one-dimensional simulation data.

[0057] Optionally, after determining the one-dimensional simulation data, three-dimensional simulation data of the vehicle's transmission system is determined based on the one-dimensional simulation data, thereby integrating the one-dimensional simulation data with the three-dimensional simulation data. That is, the one-dimensional simulation data and the three-dimensional simulation data are combined to obtain active lubrication data. A specific method for determining three-dimensional simulation data of a vehicle's transmission system based on the one-dimensional simulation data is described below.

[0058] Alternatively, 1D simulation data typically provides basic dynamic information about the system, while 3D simulation data can provide more detailed geometric and spatial information. Integrating the two can more accurately simulate the real-world behavior of the transmission system and improve the accuracy of the analysis results.

[0059] As an optional embodiment, based on one-dimensional simulation data, three-dimensional simulation data of the vehicle's transmission system is determined, including: based on operating condition information, determining the demand data of the transmission system, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component of the transmission system must meet; comparing the demand data with the one-dimensional simulation data to obtain a first comparison result, wherein the first comparison result is used to indicate the degree of matching between the one-dimensional simulation data and the demand data; based on the first comparison result, adjusting the one-dimensional simulation data to obtain adjusted one-dimensional simulation data; based on the adjusted one-dimensional simulation data, establishing a three-dimensional simulation model of the transmission system; based on the three-dimensional simulation model, determining the motion data of the three-dimensional simulation model, wherein the motion data is used to indicate the fluid motion in the three-dimensional simulation model; integrating the motion data to determine the three-dimensional simulation data.

[0060] In this embodiment, the transmission system's required data is determined based on the operating condition information, wherein the required data may include at least but not limited to: data such as the required oil volume of the transmission system.

[0061] For example, the required oil volume is calculated based on the power loss of each lubrication part of the transmission assembly under different working conditions, and the total required oil volume of the system is summarized.

[0062] Optionally, the demand data is compared with the one-dimensional simulation data to obtain a first comparison result, and the one-dimensional simulation data is adjusted based on the first comparison result. By comparing the actual demand data with the simulation data, deviations or inaccuracies in the simulation model can be identified. Adjusting the simulation data helps improve the accuracy of the model and make it more realistic.

[0063] For example, consider a simple transmission system consisting of gears, bearings, and couplings. The power loss in each component needs to be calculated. Assuming the gears have an efficiency of 98%, the power loss is 2% of the input power. If the input power is 100 kW, the power loss is 2 kW. Assuming each bearing has a power loss of 0.5 kW, and the entire machine has four bearings, the total power loss is 2 kW. Assuming the couplings have an efficiency of 99%, and the input power is 100 kW, the power loss is 1 kW. Total power loss = 2 kW (gears) + 2 kW (bearings) + 1 kW (coupling) = 5 kW. Calculating the required oil volume based on power loss: Use empirical formulas or manufacturer's data to determine the required oil volume per kW of power loss. For example, assume that each kW of loss requires 5 liters / minute of oil. The total oil volume required = 5 kW x 5 liters / minute / kW = 25 liters / minute. In other words, the required data is a total oil volume of 25 liters / minute. Compare the current 1D simulation data with the demand data and select the appropriate pump based on the calculated total demand. The pump's flow rate, pressure, and efficiency must be considered. Suppose the 1D simulation model offers the following pump options: Pump A: 30 liters / minute flow, 10 bar pressure, 85% efficiency; Pump B: 40 liters / minute flow, 12 bar pressure, 80% efficiency; Pump C: 25 liters / minute flow, 15 bar pressure, 90% efficiency. Therefore, by comparing the demand data with the various pumps (1D simulation data), Pump C is selected because its flow rate precisely meets the demand and it has the highest efficiency. In other words, the pump data in the 1D simulation data is adjusted to Pump C: 25 liters / minute flow, 15 bar pressure, 90% efficiency.

[0064] Optionally, after determining the adjusted one-dimensional simulation data, a three-dimensional simulation model of the transmission system is established based on the adjusted one-dimensional simulation data. For example, by combining the one-dimensional lubrication simulation analysis results, each lubrication part is further analyzed and a three-dimensional simulation model is established using simulation software.

[0065] For example, simulation software is used to establish a three-dimensional simulation model of the transmission system based on the adjusted one-dimensional simulation data. The entire simulation process can mainly include watershed acquisition, watershed grid division, simulation calculation and result post-processing.

[0066] Optionally, after establishing the 3D simulation model, motion data of the 3D simulation model is determined based on the 3D simulation model, and the motion data is then integrated to determine the 3D simulation data. For example, 3D simulation software is used for auxiliary calculations, and the 1D calculation results are compared and analyzed. The structural dimensions are further optimized by coupling the 3D and 1D models to obtain the final simulation analysis results, that is, the motion data is integrated to determine the 3D simulation data.

[0067] For example, for flow domain meshing: import the fluid domain into the software, determine the units, and inspect and repair the fluid domain model. Name the boundaries of the fluid domain, and define the inlet and outlet and oil channel boundaries. Define the global grid, boundary grid, and generate the grid. Output the grid file. Simulation calculation: import the grid file of the flow domain, detect the minimum volume of the grid, and ensure that the minimum volume is positive. Perform general settings, set the fluid physical parameters, define the fluid domain movement, fluid domain boundaries, and fluid exchange interfaces, perform initialization, set the simulation steps, and perform simulation. Result post-processing: import the settings file to view the simulation results, generate vector diagrams, extract animations, display pressure contours, etc.

[0068] Optionally, through one-dimensional and three-dimensional simulations, the performance of the transmission system's lubrication components can be more comprehensively analyzed, allowing for more effective optimization design.

[0069] As an optional implementation method, based on the hybrid simulation data, the lubrication data of each lubrication component in the transmission system is determined, including: comparing the hybrid simulation data with the demand data to obtain a second comparison result, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component in the transmission system need to meet, and the second comparison result is used to indicate the degree of matching between the hybrid simulation data and the demand data; based on the second comparison result, the hybrid simulation data is adjusted to obtain lubrication data.

[0070] In this embodiment, the hybrid simulation data is compared with the demand data to obtain a second comparison result, and the hybrid simulation data is adjusted based on the second comparison result to obtain lubrication data. For example, the second comparison result is determined by comparing the oil volume in the simulation result with a preset lubricant volume threshold, and the hybrid simulation data is adjusted based on the second comparison result to obtain lubrication data. This is merely an example and does not limit the specific method for adjusting the hybrid simulation data to obtain lubrication data.

[0071] For example, check the oil volume data chart in the simulation results. Determine the oil volume distribution of each lubricated component, and pay attention to identifying areas with insufficient or excessive oil volume. Compare the oil volume in the simulation results with the preset lubricant volume threshold. If the oil volume in certain areas is lower than the threshold, there may be a risk of insufficient lubrication. Find the areas where the oil volume is lower than the threshold; these points are potential lubrication risk points. Record the location and specific oil volume of these risk points. Design and add diversion structures near the identified risk points. Ensure that the diversion structure can effectively guide the lubricant to the risk area to improve the lubrication effect. Adjust the overall layout of the lubrication system based on the distribution of risk points and the design of the diversion structure. Consider adjusting the hybrid simulation model by increasing the pressure of the lubricating oil pump, adjusting the oil circuit design, or adding lubricating oil nozzles, so as to further adjust the hybrid simulation data and obtain lubrication data.

[0072] Optionally, the model's predictive capabilities can be enhanced by adjusting the hybrid simulation data to more accurately reflect the system's true performance. This ensures that lubrication components meet performance targets, improving the efficiency and reliability of the entire transmission system.

[0073] It should be noted that the above embodiment can be executed by a device for determining lubrication data of a vehicle.

[0074] The method for determining the lubrication data of a vehicle provided in an embodiment of the present application obtains the operating condition information of the vehicle's transmission system, wherein the operating condition information at least includes structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions; based on the operating condition information, determines the hybrid simulation data of the transmission system, wherein the hybrid simulation data is used to indicate data related to splash lubrication type and active lubrication type of each lubrication component in the transmission system; based on the hybrid simulation data, determines the lubrication data of each lubrication component in the transmission system, wherein the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component. The present application obtains the hybrid simulation data of the transmission system by processing the operating condition information of the transmission system, and thus determines the lubrication data of each lubrication component in the transmission system based on the hybrid simulation data. Since the present application determines the hybrid simulation data of the transmission system, rather than being limited to the one-dimensional simulation data of the transmission system, it achieves the purpose of determining the simulation model from multiple angles, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system.

[0075] The technical solutions of the embodiments of the present invention are described below with reference to preferred implementation methods.

[0076] The transmission assembly is a key component of a vehicle's powertrain, and its performance directly impacts a vehicle's power, economy, and handling. Active lubrication and splash lubrication in the transmission assembly form a hybrid lubrication system, providing lubricant to the relatively moving parts. This creates fluid friction, reduces frictional resistance, alleviates component wear, and cleans and cools the surface of the parts, extending the service life of the transmission assembly. Besides experimental methods, simulation is also an important verification method for the effectiveness of transmission assembly lubrication, providing a visual understanding of the lubricant distribution across the assembly. During the product design phase, lubrication system simulation analysis can optimize system design, reduce design risks, shorten development cycles, reduce testing costs, and improve transmission system performance.

[0077] In related technologies, simulation results are typically limited to one-dimensional simulations. While traditional one-dimensional lubrication simulations simplify the computational model to a certain extent, their main drawback is the inability to fully couple the three-dimensional simulation results. This limitation makes it difficult to guarantee simulation accuracy when dealing with complex geometries and multi-dimensional load conditions. Consequently, low simulation accuracy in vehicle transmission systems remains a technical issue. Currently, no effective solution has been proposed to address this issue in related technologies.

[0078] However, an embodiment of the present invention proposes a hybrid lubrication simulation and optimization method for a transmission assembly. The active lubrication part builds a simulation model based on one-dimensional simulation software, performs pressure and flow analysis of the hydraulic lubrication oil circuit system, and combines the optimization design of the lubrication oil circuit structure. Use three-dimensional simulation software to further analyze each lubrication part, couple the simulation results, and improve the simulation accuracy. The simulation results of each spray point of active lubrication are introduced into the three-dimensional fluid simulation software as the simulation boundary, and a three-dimensional lubrication structure simulation model is built. The flow field structure analysis of the splash lubrication system is performed to identify the risk points of the lubrication system and determine the optimization direction. Thereby, the purpose of determining the simulation model from multiple angles is achieved, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system.

[0079] The following is a further introduction to the embodiments of the present invention.

[0080] Figure 2 Schematic diagram of a one-dimensional simulation of active lubrication provided according to an embodiment of the present application. Figure 2 As shown, active lubrication one-dimensional simulation and optimization are implemented using simulation software to establish a one-dimensional flow simulation model. The active lubrication one-dimensional simulation model parameterizes structures such as the oil pump, pipelines, and housing oil channels, and selects corresponding components to build the lubrication simulation model.

[0081] In this embodiment, the required oil volume is calculated based on the power loss of each lubricating part of the transmission assembly under different working conditions, and the total required oil volume of the system is summarized to select the oil pump.

[0082] Optionally, based on the overall layout of the assembly lubrication system, the lubrication structure is extracted, and the oil pump, pipeline, housing oil channel and other structures are parameterized based on the simulation software. The corresponding components are selected to build a lubrication simulation model, and the sub-model is selected. The lubrication model working conditions and the parameters of each component are set, and steady-state simulation operations are performed to check the working status of the lubrication system under different working conditions, and the lubricating oil flow and pressure results at each lubrication node.

[0083] Optionally, the system oil circuit and spray point oil hole design can be optimized based on the oil supply and demand relationship of each lubrication part of the transmission assembly to ensure fixed-point and on-demand oil supply.

[0084] Figure 3Schematic diagram of a three-dimensional simulation of active lubrication provided according to an embodiment of the present application. Figure 3 As shown in the figure, the three-dimensional simulation model of active lubrication and the cloud map of lubricating oil adhesion on the wall of the lubrication system flow basin indicate the amount of lubricating oil at the corresponding position.

[0085] In this implementation, the one-dimensional lubrication simulation analysis results are combined to further analyze the various lubrication parts, and three-dimensional simulation software is used for auxiliary calculations. The one-dimensional calculation results are compared and analyzed, and the structural dimensions are further optimized by coupling the three-dimensional and one-dimensional models to obtain the final simulation analysis results.

[0086] Alternatively, as Figure 3 As shown in the figure, the three-dimensional simulation and optimization of active lubrication are realized using simulation software. The entire simulation process mainly includes four parts: watershed acquisition, watershed grid division, simulation calculation, and result post-processing.

[0087] Optionally, for flow domain acquisition, import the 3D model into the software, perform volume extraction, set limiting edges and limiting surfaces on the model to form a closed area, and specify a vector surface within the closed area to generate the corresponding fluid domain.

[0088] Optionally, by precisely defining the 3D model and constraints, a very accurate fluid domain can be generated, which is crucial for subsequent fluid dynamics analysis and simulation. Seamless integration of fluid domain generation with subsequent fluid analysis software simplifies the workflow from modeling to analysis.

[0089] Optional: Flow domain meshing: Import the fluid domain into the software, assign units, and perform checks and repairs on the fluid domain model. Name the boundaries of the fluid domain, define inlet and outlet, and oil channel boundaries. Define the global and boundary meshes and generate the mesh. Output the mesh file.

[0090] Optionally, a high-quality mesh can be generated and reused for multiple simulations under different conditions without having to re-mesh each time, saving computational resources and time. In other words, a high-quality mesh can more accurately capture the physical phenomena within the fluid domain, improving the accuracy of simulation results.

[0091] Alternatively, if problems are encountered during simulation, separate mesh files can help engineers more easily identify and fix mesh-related issues. Proper meshing allows for better analysis of complex flow characteristics within the fluid domain, providing important reference for design optimization.

[0092] Optionally, perform a simulation: import the mesh file for the flow domain, detect the minimum volume of the mesh, and ensure that the minimum volume is positive. Perform general settings, set the fluid physical parameters, define the fluid domain motion, fluid domain boundaries, and fluid exchange interfaces, initialize the simulation, and set the simulation steps for execution.

[0093] Alternatively, in fluid mechanics, fluid domains, their boundaries, and interfaces between fluids are important concepts used to describe the motion and interactions of fluids. A fluid domain refers to the region of space occupied by a fluid. When analyzing fluid motion, we typically focus on the distribution of velocity fields, pressure fields, and other physical quantities within this domain.

[0094] Alternatively, the fluid motion can be steady-state or unsteady-state. Steady-state motion means that various parameters of the fluid (such as velocity, pressure, etc.) do not change with time; unsteady-state motion is the opposite.

[0095] Alternatively, fluid motion can be further divided into laminar flow and turbulent flow. Laminar flow refers to the movement of fluid particles along parallel paths, while turbulent flow refers to the movement of fluid particles along complex and irregular paths.

[0096] Alternatively, the boundary of the fluid domain refers to the interface between the fluid and the outside world or other media. In fluid mechanics, boundary conditions are an important part of defining a fluid problem.

[0097] Optionally, common boundary types include solid boundaries (such as pipe walls), free boundaries (such as liquid surfaces), and periodic boundaries.

[0098] Optionally, the boundary conditions can be no-slip conditions (fluid velocity is zero on the solid boundary), slip conditions (fluid velocity is non-zero), or open boundary conditions (fluid is allowed to enter and exit the fluid domain).

[0099] Alternatively, when two or more fluids are in contact with each other, the interface between them is called a fluid exchange interface. These interfaces can be liquid-liquid interfaces, gas-liquid interfaces, or gas-gas interfaces.

[0100] Alternatively, at these interfaces, transfer of matter, momentum, and energy typically occurs. When studying fluid exchange interfaces, factors such as surface tension, friction, and heat and mass transfer at the interface need to be considered.

[0101] Alternatively, in numerical simulations, dealing with interfaces between fluids is a complex problem involving interface tracking and interface capturing techniques.

[0102] Optionally, by properly setting the simulation steps and time steps, you can optimize the use of computing resources and shorten the calculation time. At the same time, you can analyze complex fluid phenomena in stages, which helps to understand the fluid behavior at different stages.

[0103] Optionally, post-process the results: import the settings file to view the simulation results, generate vector diagrams, extract animations, display pressure contours, etc.

[0104] Figure 4This is a schematic diagram of a mixed lubrication simulation provided according to an embodiment of the present application. The oil stirring lubrication flow field and the overall lubrication condition of the assembly are as follows: Figure 4 shown.

[0105] In this embodiment, hybrid lubrication simulation and optimization are implemented using simulation software, and the entire simulation process mainly includes three steps: model pre-processing, simulation calculation, and post-processing.

[0106] Optionally, perform model pre-processing: First, verify the 3D model simulation input to ensure the housing cavity is completely enclosed, the gears mesh correctly and are free of interference, and all components are properly connected. Save the 3D model in a file format accessible by the pre-processing software. Open the 3D model in the pre-processing software and group the parts. The principle is to ensure that all parts in the same group have the same rotation axis, direction, and speed under all operating conditions. Non-rotating parts are grouped separately. Save each group of parts in a separate file format accessible by the simulation software.

[0107] Alternatively, you can use the 3D modeling software's inspection tool to confirm that the shell cavity is completely enclosed. Check for unsealed boundaries or holes in the shell cavity. Ensure that all faces are properly connected without gaps.

[0108] Optionally, check the meshing between the gears to ensure that the gear parameters such as module, pressure angle, and center distance are correct. Use the interference check tool to confirm that the gears do not interfere with each other during operation.

[0109] Optionally, check the connections between parts: Make sure the constraints and connections between parts are set correctly. Use the assembly inspection tool to verify that all connectors fit correctly.

[0110] Optionally, save the file in a file format that can be opened by pre-processing software. Select a suitable file format for saving based on the requirements of the pre-processing software used.

[0111] Alternatively, use pre-processing software to open the model and group it: Import the 3D model into the pre-processing software. Group the parts based on the axis of rotation, direction of rotation, and speed. Ensure that the kinematic characteristics of the parts in the same group are consistent under different operating conditions. Non-rotating parts should be grouped separately.

[0112] Alternatively, by grouping parts with similar kinematic characteristics, the simulation software can more efficiently calculate the motion and interactions of these parts, reducing computation time. Grouping also makes the model structure clearer, easier to manage and modify, and users can more easily identify and work with parts from different categories.

[0113] Optionally, perform a simulation: Open the simulation software, import all groups of the geometric model, define the motion rules for each group, adjust the coordinate system, set the rotation center, and define the rotation speed. Initialize the lubricant, generate the fluid source, particle source, and fluid solution group, define the oil level height or maximum oil injection volume, define relevant parameters such as particle diameter and lubricant in the property bar, adjust the initial oil level angle based on the input working condition boundaries, and preview the particle generation status. Put the simulation model into the solution state and start the simulation.

[0114] Alternatively, simulation can be used to test the feasibility of a design in a virtual environment, identify potential problems, and reduce the cost and time of physical prototype manufacturing. Simulation can also help determine the optimal design and operating conditions by adjusting different parameters, improving system efficiency and performance.

[0115] Optionally, post-process the results: After the solution is completed, you can view the lubrication flow field diagram and the oil-stirring lubrication flow field animation at any time to understand the overall lubrication condition of the assembly; define a wet wall sensor to analyze the wet wall area of ​​the components to further understand the lubrication condition of the specific structure; define a streamline sensor to view the particle movement path and observe the splashing of lubricating oil; define a flow sensor to measure the amount of lubricating oil flowing through the sensor to quantitatively determine the lubrication condition of a local position of the assembly.

[0116] Optionally, wetted wall sensors analyze wetted wall area to determine lubricant coverage on component surfaces. This helps identify components that may be underlubricated, enabling design optimization or lubrication system adjustments. Streamline sensors observe particle motion paths to analyze lubricant splashing and distribution. They can identify the lubricant's circulation path within the system, ensuring adequate lubrication of critical areas. Flow sensors measure the amount of lubricant flowing through specific locations, enabling quantitative assessment of localized lubrication conditions. Flow data can be used to optimize lubricant supply, avoid over- or under-lubrication, conserve resources, and improve system efficiency.

[0117] Optionally, based on the simulation results, the assembly oil injection amount can be determined, lubrication risk points can be identified, flow guide structures can be added, the lubrication system can be optimized, and the lubrication design indicators can be achieved.

[0118] Alternatively, using simulation results to determine assembly oil injection volume, identify lubrication risk points, add flow diversion structures, and optimize the lubrication system to achieve lubrication design specifications offers multiple benefits: Optimizing the lubrication system effectively reduces friction and wear, thereby extending the life of the mechanical assembly and improving system reliability. Furthermore, by precisely controlling oil injection volume and flow diversion structures, the lubrication system can maintain efficient operation while reducing energy consumption, improving overall system efficiency. By achieving lubrication design specifications, the system can ensure stable operation under various operating conditions while meeting design and regulatory requirements.

[0119] In this embodiment, the active lubrication part builds a simulation model based on one-dimensional simulation software, performs pressure and flow analysis of the hydraulic lubrication oil circuit system, and combines it with the optimization design of the lubrication oil circuit structure. Use three-dimensional simulation software to further analyze each lubrication part, couple the simulation results, and improve the simulation accuracy. The simulation results of each active lubrication spray point are introduced into the three-dimensional fluid simulation software as the simulation boundary, and a three-dimensional lubrication structure simulation model is built. The flow field structure analysis of the splash lubrication system is performed to identify the risk points of the lubrication system and determine the optimization direction. In this way, the purpose of determining the simulation model from multiple angles is achieved, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system.

[0120] The present application also provides a device for determining lubrication data of a vehicle. It should be noted that the device for determining lubrication data of a vehicle provided in the present application can be used to execute the method for determining lubrication data of a vehicle provided in the present application. The following describes the device for determining lubrication data of a vehicle provided in the present application.

[0121] According to an embodiment of the present application, a device for determining lubrication data of the above-mentioned vehicle is also provided. Figure 5 is a schematic diagram of a device for determining lubrication data of a vehicle according to an embodiment of the present invention. Figure 5 As shown, the device includes: an acquisition unit 501, a first determination unit 502 and a second determination unit 503.

[0122] The acquisition unit 501 is configured to acquire operating condition information of a transmission system of a vehicle, wherein the operating condition information at least includes structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions.

[0123] The first determining unit 502 is configured to determine hybrid simulation data of the transmission system based on the operating condition information, wherein the hybrid simulation data is used to indicate data related to the splash lubrication type and the active lubrication type of each lubrication component in the transmission system.

[0124] The second determining unit 503 is configured to determine lubrication data of each lubrication component in the transmission system based on the hybrid simulation data, wherein the lubrication data is used to indicate lubrication performance of the corresponding lubrication component.

[0125] Optionally, the first determination unit 502 may include: a first determination module, used to determine the active lubrication data and splash lubrication data of the vehicle's transmission system based on operating condition information, wherein the active lubrication data is used to indicate data related to active lubrication of the transmission system, the active lubrication data includes simulation data in a one-dimensional simulation model of the transmission system, and simulation data in a three-dimensional simulation model of the transmission system, the simulation accuracy of the three-dimensional simulation model is different from the simulation accuracy of the one-dimensional simulation model, and the splash lubrication data is used to indicate data related to splash lubrication of the transmission system; a merging module, used to merge the active lubrication data with the splash lubrication data to obtain hybrid simulation data of the transmission system.

[0126] Optionally, the first determination module may include: a first determination submodule, used to determine the oil quantity movement data of the transmission system based on the motion condition information, wherein the oil quantity movement data at least includes the particle movement path and lubricating oil quantity data of the transmission system; a second determination submodule, used to integrate the oil quantity movement data to obtain splash lubrication data.

[0127] Optionally, the first determination module may further include: a second determination submodule, used to determine the one-dimensional simulation data of the transmission system based on the operating condition information, wherein the one-dimensional simulation data is used to indicate the simulation data in the one-dimensional simulation model of the transmission system; a third determination submodule, used to determine the three-dimensional simulation data of the vehicle's transmission system based on the one-dimensional simulation data, wherein the three-dimensional simulation data is used to indicate the simulation data in the three-dimensional simulation model of the transmission system; and an integration submodule, used to integrate the one-dimensional simulation data with the three-dimensional simulation data to obtain active lubrication data.

[0128] Optionally, the integration submodule can also be used to determine the demand data of the transmission system based on the operating condition information, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component of the transmission system must meet; compare the demand data with the one-dimensional simulation data to obtain a first comparison result, wherein the first comparison result is used to indicate the degree of matching between the one-dimensional simulation data and the demand data; based on the first comparison result, adjust the one-dimensional simulation data to obtain adjusted one-dimensional simulation data; based on the adjusted one-dimensional simulation data, establish a three-dimensional simulation model of the transmission system; based on the three-dimensional simulation model, determine the motion data of the three-dimensional simulation model, wherein the motion data is used to indicate the fluid motion in the three-dimensional simulation model; integrate the motion data to determine the three-dimensional simulation data.

[0129] Optionally, the second determination unit 503 may include: a comparison module, used to compare the hybrid simulation data with the demand data to obtain a second comparison result, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component of the transmission system must meet, and the second comparison result is used to indicate the degree of matching between the hybrid simulation data and the demand data; an adjustment module, used to adjust the hybrid simulation data based on the second comparison result to obtain lubrication data.

[0130] In this embodiment, the operating condition information of the vehicle's transmission system is obtained, wherein the operating condition information includes at least structural performance information of multiple lubrication components in the transmission system when the vehicle is in different operating conditions; based on the operating condition information, hybrid simulation data of the transmission system is determined, wherein the hybrid simulation data is used to indicate data related to splash lubrication type and active lubrication type of each lubrication component in the transmission system; based on the hybrid simulation data, lubrication data of each lubrication component in the transmission system is determined, wherein the lubrication data is used to indicate the lubrication performance of the corresponding lubrication component. The present application obtains hybrid simulation data of the transmission system by processing the operating condition information of the transmission system, and thus determines the lubrication data of each lubrication component in the transmission system based on the hybrid simulation data. Since the present application determines the hybrid simulation data of the transmission system, rather than being limited to the one-dimensional simulation data of the transmission system, the purpose of determining the simulation model from multiple angles is achieved, thereby solving the technical problem of low simulation accuracy of the vehicle transmission system and achieving the technical effect of improving the simulation accuracy of the vehicle transmission system.

[0131] An embodiment of the present application further provides a computer-readable storage medium, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the method for determining the lubrication data of the vehicle in various embodiments of the present invention.

[0132] An embodiment of the present application further provides a processor, which is used to run a program, wherein when the program is run, the method for determining lubrication data of a vehicle in an embodiment of the present invention is executed.

[0133] An embodiment of the present application further provides a vehicle, which is used to execute the method for determining lubrication data of a vehicle according to an embodiment of the present invention.

[0134] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0135] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0136] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected to achieve the purpose of the present embodiment according to actual needs.

[0137] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0138] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0139] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for determining lubrication data of a vehicle, characterized in that: include: Acquiring operating condition information of a transmission system of a vehicle, wherein the operating condition information at least includes structural performance information of a plurality of lubrication components in the transmission system under different operating conditions of the vehicle; Determining hybrid simulation data of the transmission system based on the operating condition information, wherein the hybrid simulation data is used to indicate data related to splash lubrication type and active lubrication type of each lubrication component in the transmission system; Lubrication data of each lubrication component in the transmission system is determined based on the hybrid simulation data, wherein the lubrication data is used to indicate lubrication performance of the corresponding lubrication component.

2. The method according to claim 1, characterized in that Determining hybrid simulation data of the transmission system based on the operating condition information includes: determining, based on the operating condition information, active lubrication data and splash lubrication data of the transmission system of the vehicle, wherein the active lubrication data is used to indicate data related to active lubrication of the transmission system, the active lubrication data includes simulation data in a one-dimensional simulation model of the transmission system and simulation data in a three-dimensional simulation model of the transmission system, the simulation accuracy of the three-dimensional simulation model being different from the simulation accuracy of the one-dimensional simulation model, and the splash lubrication data is used to indicate data related to splash lubrication of the transmission system; The active lubrication data and the splash lubrication data are combined to obtain the hybrid simulation data of the transmission system.

3. The method according to claim 2, characterized in that Determining splash lubrication data of the transmission system of the vehicle based on the operating condition information includes: Determining oil quantity movement data of the transmission system based on the movement condition information, wherein the oil quantity movement data at least includes particle movement paths and lubricating oil quantity data of the transmission system; The oil quantity movement data is integrated to obtain the splash lubrication data.

4. The method according to claim 2, characterized in that Determining active lubrication data of the transmission system of the vehicle based on the operating condition information includes: Determining one-dimensional simulation data of the transmission system based on the operating condition information, wherein the one-dimensional simulation data is used to indicate the simulation data in the one-dimensional simulation model of the transmission system; Based on the one-dimensional simulation data, three-dimensional simulation data of the transmission system of the vehicle is determined, wherein the three-dimensional simulation data is used to indicate the simulation data in the three-dimensional simulation model of the transmission system; the one-dimensional simulation data and the three-dimensional simulation data are integrated to obtain the active lubrication data.

5. The method according to claim 4, characterized in that Determining the three-dimensional simulation data of the transmission system of the vehicle based on the one-dimensional simulation data includes: Determining demand data for the transmission system based on the operating condition information, wherein the demand data is used to indicate index requirements that performance parameters of each lubrication component of the transmission system must meet; Comparing the demand data with the one-dimensional simulation data to obtain a first comparison result, wherein the first comparison result is used to indicate a matching degree between the one-dimensional simulation data and the demand data; Adjusting the one-dimensional simulation data based on the first comparison result to obtain adjusted one-dimensional simulation data; Establishing a three-dimensional simulation model of the transmission system based on the adjusted one-dimensional simulation data; Determining motion data of the three-dimensional simulation model based on the three-dimensional simulation model, wherein the motion data is used to indicate a fluid motion condition in the three-dimensional simulation model; The motion data are integrated to determine the three-dimensional simulation data.

6. The method according to any one of claims 1 to 5, characterized in that Determining lubrication data of each lubrication component in the transmission system based on the hybrid simulation data includes: Comparing the hybrid simulation data with the demand data to obtain a second comparison result, wherein the demand data is used to indicate the index requirements that the performance parameters of each lubrication component of the transmission system need to meet, and the second comparison result is used to indicate the degree of matching between the hybrid simulation data and the demand data; Based on the second comparison result, the hybrid simulation data is adjusted to obtain the lubrication data.

7. A device for determining lubrication data of a vehicle, characterized in that: include: an acquiring unit, configured to acquire operating condition information of a transmission system of a vehicle, wherein the operating condition information at least includes structural performance information of a plurality of lubrication components in the transmission system under different operating conditions of the vehicle; a first determining unit, configured to determine hybrid simulation data of the transmission system based on the operating condition information, wherein the hybrid simulation data is used to indicate data related to a splash lubrication type and an active lubrication type for each lubrication component in the transmission system; The second determining unit is configured to determine lubrication data of each lubrication component in the transmission system based on the hybrid simulation data, wherein the lubrication data is used to indicate lubrication performance of the corresponding lubrication component.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 6.

9. A processor, characterized in that: The processor is configured to run a program, wherein the program executes the method according to any one of claims 1 to 6 when running.

10. A vehicle, characterized in that: The vehicle is used to perform the method according to any one of claims 1 to 6.

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