Method and apparatus for determining flow of pipeline in vehicle, storage medium and processor

Abstract

Disclosed in the present disclosure are a method and apparatus for determining flow of a pipeline in a vehicle, a storage medium and a processor. The method comprises: acquiring geometric features of a pipeline in a vehicle; on the basis of the geometric features, determining a first target tolerance of a throttle orifice on a speed reducer side in the pipeline and a second target tolerance of a nozzle of a stator in the pipeline; and determining flow through the pipeline on the basis of the first target tolerance and the second target tolerance. According to the present disclosure, the technical problems of reduced reliability and limited service life of the speed reducer due to insufficient lubrication of shaft gears of the speed reducer are solved.

Description

Method, device, storage medium and processor for determining flow rate of pipeline in vehicle

[0001] Cross-reference

[0002] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on September 12, 2023, with application number 202311175309X and invention name “Flow determination method, device, storage medium and processor for pipelines in vehicles”, the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicles, and in particular, to a method, device, storage medium, and processor for determining flow rate of a pipeline in a vehicle. Background Art

[0004] At present, in new energy reducers, active lubrication pipelines are often used to dissipate heat and lubricate motors, bearings, tooth surfaces, etc. However, active lubrication pipelines have many manufacturing tolerances in actual applications, such as the processing tolerance of the nozzle, the fitting tolerance of the connection between the steel pipe and the shell, etc. These tolerances have a great impact on the flow distribution results, and even cause insufficient flow at some lubrication points, resulting in technical problems such as reduced reliability of the reducer shaft teeth due to insufficient lubrication and limited service life of the reducer.

[0005] Currently, no effective solution has been proposed to the technical problems of reduced reliability and limited service life of the reducer due to insufficient lubrication of the reducer shaft teeth.

[0006] Summary of the Invention

[0007] The embodiments of the present disclosure provide a method, device, storage medium, and processor for determining flow in a pipeline in a vehicle, so as to at least solve the technical problems of reduced reliability and limited service life of the reducer due to insufficient lubrication of the reducer shaft teeth.

[0008] According to one aspect of an embodiment of the present disclosure, a method for determining flow rate in a pipeline in a vehicle is provided. The method may include: obtaining geometric characteristics of the pipeline in the vehicle; determining, based on the geometric characteristics, a first target tolerance for a throttle orifice on the reducer side of the pipeline and a second target tolerance for a nozzle of a stator in the pipeline, wherein the first target tolerance is used to standardize the nominal size of the throttle orifice, and the second target tolerance is used to standardize the nominal size of the nozzle; and determining the flow rate through the pipeline based on the first and second target tolerances.

[0009] Optionally, based on the geometric features, a first target tolerance of the throttle hole on the reducer side in the pipeline and a second target tolerance of the nozzle of the stator in the pipeline are determined, including: obtaining the target nozzle of the pipeline by analyzing the geometric features; and determining the first target tolerance and the second target tolerance based on the target nozzle.

[0010] Optionally, based on the target nozzle, determining the first target tolerance and the second target tolerance includes: obtaining a first current flow rate and a second current flow rate from the current flow rate flowing through the target nozzle, wherein the target nozzle includes at least: a throttle hole and a nozzle, the first current flow rate is used to represent the current flow rate flowing through the throttle hole, and the second current flow rate is used to represent the current flow rate flowing through the nozzle; based on the first current flow rate and the second current flow rate, determining the first target tolerance and the second target tolerance.

[0011] Optionally, based on the first current flow and the second current flow, the first target tolerance and the second target tolerance are determined, including: in response to the difference between the first current flow and the preset reducer flow being within the first preset difference range, the current tolerance of the throttle hole is determined as the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow being within the second preset difference range, the current tolerance of the nozzle is determined as the second target tolerance; in response to the difference between the first current flow and the preset reducer flow not being within the first preset difference range, the current tolerance of the throttle hole is adjusted to obtain the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow not being within the second preset difference range, the current tolerance of the nozzle is adjusted to obtain the second target tolerance.

[0012] Optionally, the flow rate through the pipeline is determined based on the first target tolerance and the second target tolerance, including: determining the current size of the target nozzle based on the first target tolerance and the second target tolerance; determining the actual flow rate of the target nozzle flowing through the pipeline based on the current size and the total flow rate through the pipeline; in response to the actual flow rate satisfying a preset flow rate condition, determining the actual flow rate as the flow rate of the target nozzle flowing through the pipeline, wherein the preset flow rate condition is used to determine whether the actual flow rate is determined as the flow rate of the target nozzle flowing through the pipeline.

[0013] Optionally, in response to the actual flow satisfying a preset flow condition, the actual flow is determined as the flow of a target nozzle flowing through the pipeline, including: in response to the difference between a first actual flow in the actual flow and a preset reducer flow being within a first preset difference range, and the difference between a second actual flow in the actual flow and a preset sub-flow being within a second preset difference range, the first actual flow and the second actual flow are determined as the flow of the target nozzle flowing through the pipeline, wherein the first actual flow is used to represent the actual flow flowing through the throttle hole, and the second actual flow is used to represent the actual flow flowing through the nozzle.

[0014] According to one aspect of an embodiment of the present disclosure, a flow rate determination device for a pipeline in a vehicle is provided. The device may include: an acquisition unit configured to acquire geometric characteristics of a pipeline in the vehicle; a first determination unit configured to determine, based on the geometric characteristics, a first target tolerance for a throttle orifice on a reducer side of the pipeline and a second target tolerance for a nozzle of a stator in the pipeline, wherein the first target tolerance is used to standardize the nominal size of the throttle orifice, and the second target tolerance is used to standardize the nominal size of the nozzle; and a second determination unit configured to determine the flow rate flowing through the pipeline based on the first target tolerance and the second target tolerance.

[0015] According to another aspect of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored program, wherein when the program is executed, the device containing the computer-readable storage medium is controlled to execute the method for determining flow rate in a pipeline in a vehicle according to the present disclosure.

[0016] According to another aspect of an embodiment of the present disclosure, a processor is provided, which is configured to run a program, wherein when the program is run by the processor, the method for determining flow rate in a pipeline in a vehicle according to an embodiment of the present disclosure is executed.

[0017] According to another aspect of the embodiments of the present disclosure, a vehicle is further provided, and the vehicle is used to execute the method for determining flow rate of a pipeline in the vehicle according to the embodiments of the present disclosure.

[0018] According to another aspect of an embodiment of the present disclosure, an electronic device is provided. The electronic device includes a memory and a processor, wherein the memory is configured to store computer-executable instructions, and the processor is configured to execute the computer-executable instructions. When executed by the processor, the computer-executable instructions implement the method for determining flow rate in a pipeline in a vehicle according to an embodiment of the present disclosure.

[0019] According to another aspect of an embodiment of the present disclosure, a computer program product is further provided, including a computer program, which, when executed by a processor, implements the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure.

[0020] According to another aspect of an embodiment of the present disclosure, a computer program product is also provided, including a non-volatile computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the method for determining the flow rate of a pipeline in a vehicle of an embodiment of the present disclosure.

[0021] According to another aspect of an embodiment of the present disclosure, a computer program is further provided. When the computer program is executed by a processor, the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure is implemented.

[0022] According to another aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, which stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure is implemented.

[0023] In the disclosed embodiment, the geometric features of the pipeline in the vehicle are obtained, and by analyzing the geometric features, a first target tolerance of the throttle hole on the reducer side of the pipeline and a second target tolerance of the nozzle of the stator in the pipeline can be determined. Then, based on the first target tolerance and the second target tolerance, the current size of the target nozzle can be determined. Based on the current size of the target nozzle and the total flow rate flowing through the pipeline, the actual flow rate of the target nozzle flowing through the pipeline can be determined. Then, by judging whether the actual flow rate meets the preset flow rate condition, the flow rate of the target nozzle flowing through the pipeline can be determined, thereby achieving the purpose of avoiding insufficient flow rate at some lubrication points, solving the technical problems of reduced reliability of reducer shaft teeth due to insufficient lubrication and limited service life of the reducer, and achieving the technical effect of avoiding reduced reliability of reducer shaft teeth due to insufficient lubrication and extending the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0025] FIG1 is a flow chart of a method for determining flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure;

[0026] FIG2 is a flow chart of a method for quickly calculating flow distribution taking into account manufacturing tolerances of active lubrication pipelines according to an embodiment of the present disclosure;

[0027] FIG3 is a schematic diagram of a flow rate determination device for a pipeline in a vehicle according to an embodiment of the present disclosure;

[0028] FIG4 is a structural block diagram of a processor according to an embodiment of the present disclosure;

[0029] FIG5 is a structural block diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present disclosure.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure 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 disclosure 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.

[0032] According to an embodiment of the present disclosure, a method for determining the flow rate of a pipeline in 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.

[0033] FIG1 is a flow chart of a method for determining flow rate in a pipeline in a vehicle according to an embodiment of the present disclosure. The method may include the following steps:

[0034] Step S101: Acquire geometric features of pipelines in the vehicle.

[0035] In the technical solution provided in the above step S101 of the present disclosure, the geometric features of the above pipeline can be used to represent the nozzle positions and various lubrication points in the pipeline. This is only used as an example and is not specifically limited.

[0036] Optionally, geometric features of the pipeline in the vehicle are obtained. For example, by performing feature analysis on the geometric model of the pipeline, the geometric features of the pipeline can be obtained, such as the nozzle position, design tolerance, and various lubrication points in the pipeline.

[0037] Optionally, by performing feature analysis on the geometric model of the pipeline, it can be determined whether a nozzle needs to be set at the intersection of the pipes in the pipeline, whether a nozzle needs to be set at the pipe curve in the pipeline, and whether a nozzle needs to be set at the end of the pipe in the pipeline.

[0038] Step S102 : determining a first target tolerance of a throttle hole on the reducer side of the pipeline and a second target tolerance of a nozzle of a stator in the pipeline based on the geometric features.

[0039] In the technical solution provided in the above step S102 of the present disclosure, the throttle hole on the reducer side may include the throttle hole on the reducer generator side and the throttle hole on the reducer drive motor side. The stator nozzle may include the stator nozzle of the generator and the stator nozzle of the drive motor. The first target tolerance may be used to standardize the nominal size of the throttle hole. The second target tolerance may be used to standardize the nominal size of the nozzle. For example, the first target tolerance may be set to ±0.1 mm, and the second target tolerance may also be set to ±0.1 mm. This is merely an example and is not specifically limited.

[0040] Optionally, after obtaining the geometric characteristics of the pipeline in the vehicle, a first target tolerance for a throttle orifice on the speed reducer side of the pipeline and a second target tolerance for a nozzle of a stator in the pipeline are determined based on the geometric characteristics. For example, by analyzing the geometric characteristics of the pipeline, the first target tolerance for the throttle orifice on the speed reducer side of the pipeline and the second target tolerance for the nozzle of the stator in the pipeline can be determined, thereby determining whether the current tolerances of the throttle orifice on the speed reducer side and the current tolerances of the nozzle of the stator need to be adjusted.

[0041] Optionally, finite element calculations can be performed on the pipeline to determine the flow rate through the orifice and the flow rate through the nozzle. Error analysis can then be performed on these flow rates to determine whether they meet the current lubrication pipeline requirements. If they do, there is no need to adjust the current tolerances of the orifice or nozzle. Instead, the current tolerance of the orifice is determined as the first target tolerance, and the current tolerance of the nozzle is determined as the second target tolerance.

[0042] Optionally, if the current lubrication pipeline requirements cannot be met, the current tolerance of the throttle hole needs to be adjusted, and the current tolerance of the nozzle also needs to be adjusted, so that the adjusted tolerance corresponding to the throttle hole and the adjusted tolerance corresponding to the nozzle can be obtained, and the adjusted tolerance corresponding to the throttle hole is determined as the first target tolerance, and the adjusted tolerance corresponding to the nozzle is determined as the second target tolerance.

[0043] Step S103 : determining the flow rate through the pipeline based on the first target tolerance and the second target tolerance.

[0044] In the technical solution provided in the above step S103 of the present disclosure, the above-mentioned flow rate flowing through the pipeline can be used to represent the flow rate flowing through the throttle hole on the reducer side in the pipeline, the flow rate flowing through the stator nozzle in the pipeline, the leakage on the generator side in the pipeline, the leakage on the drive motor side in the pipeline, and other flow rates, etc. For example, other flow rates can at least include: the flow rate at the generator shaft, the flow rate at the rear bearing of the generator, the flow rate at the drive motor shaft, the flow rate at the rear bearing of the drive motor, etc., which are only used as examples here and are not specifically limited.

[0045] Optionally, after determining a first target tolerance for a flow restriction orifice on the reducer side of the pipeline and a second target tolerance for a nozzle of a stator in the pipeline based on the geometric characteristics, the flow rate through the pipeline is determined based on the first target tolerance and the second target tolerance. For example, the actual flow rate through the nozzle of the pipeline can be determined based on the first target tolerance and the second target tolerance. The flow rate through the nozzle of the pipeline can then be determined by determining whether the actual flow rate meets a preset flow condition.

[0046] Optionally, if the actual flow rate satisfies a preset flow condition, the actual flow rate is determined as the flow rate through the pipeline nozzle. If the actual flow rate does not meet the preset flow condition, the first target tolerance of the reducer-side orifice or the second target tolerance of the stator nozzle needs to be adjusted. The current flow rate through the pipeline nozzle can then be determined based on the adjusted first and second target tolerances. Furthermore, by determining whether the current flow rate meets the preset flow condition, the flow rate through the pipeline nozzle can be determined.

[0047] Optionally, if the flow rate at this time satisfies a preset flow rate condition, the flow rate at this time is determined as the flow rate through the nozzle of the pipeline. If the flow rate at this time does not satisfy the preset flow rate condition, the adjusted first target tolerance and the adjusted second target tolerance need to be further adjusted until the flow rate through the nozzle of the pipeline satisfies the preset flow rate condition.

[0048] The above steps S101 to S103 of the present invention obtain the geometric characteristics of the pipeline in the vehicle, and by analyzing the geometric characteristics, the first target tolerance of the throttle hole on the reducer side of the pipeline and the second target tolerance of the stator nozzle in the pipeline can be determined, and then the current size of the target nozzle can be determined based on the first target tolerance and the second target tolerance. According to the current size of the target nozzle and the total flow rate flowing through the pipeline, the actual flow rate of the target nozzle flowing through the pipeline can be determined, and then by judging whether the actual flow rate meets the preset flow rate condition, the flow rate of the target nozzle flowing through the pipeline can be determined, thereby achieving the purpose of avoiding insufficient flow rate at some lubrication points, solving the technical problems of reduced reliability of reducer shaft teeth due to insufficient lubrication and limited service life of the reducer, and realizing the technical effect of avoiding reduced reliability of reducer shaft teeth due to insufficient lubrication and extended service life of the reducer.

[0049] The above method of this embodiment is further introduced below.

[0050] As an optional embodiment, step S102 determines a first target tolerance of the throttle hole on the reducer side in the pipeline and a second target tolerance of the nozzle of the stator in the pipeline based on geometric features, including: obtaining the target nozzle of the pipeline by analyzing the geometric features; and determining the first target tolerance and the second target tolerance based on the target nozzle.

[0051] In this embodiment, the target nozzles can be used to regularly spray lubricating oil or lubricant onto specific lubrication points to ensure heat dissipation and lubrication requirements of shaft gears, motors, etc.

[0052] Optionally, after obtaining the geometric characteristics of the pipeline in the vehicle, the target nozzle of the pipeline can be determined by analyzing the geometric characteristics of the pipeline. For example, the position of each nozzle can be determined, and then based on the determined target nozzle, the first target tolerance of the throttle hole on the reducer side and the second target tolerance of the stator nozzle can be determined. This can determine whether the current tolerance of the throttle hole on the reducer side needs to be adjusted, and whether the current tolerance of the stator nozzle needs to be adjusted.

[0053] Optionally, based on the determined target nozzle, a first target tolerance for the reducer-side throttle orifice and a second target tolerance for the stator nozzle can be determined. For example, by performing an error analysis on the flow rate through the reducer-side throttle orifice and the flow rate through the stator nozzle, it can be determined whether the flow rate through the reducer-side throttle orifice and the flow rate through the stator nozzle can meet the current lubrication pipeline requirements. From this, the first target tolerance and the second target tolerance can be determined. Furthermore, it can be determined whether the current tolerances of the reducer-side throttle orifice and the stator nozzle need to be adjusted.

[0054] Optionally, if the flow rate through the throttle hole on the reducer side and the flow rate through the stator nozzle can meet the current lubrication pipeline requirements, there is no need to adjust the current tolerance of the throttle hole or the current tolerance of the nozzle. The current tolerance of the throttle hole is determined as the first target tolerance, and the current tolerance of the nozzle is determined as the second target tolerance.

[0055] Optionally, if the flow rate through the throttle hole on the reducer side and the flow rate through the stator nozzle cannot meet the current lubrication pipeline requirements, the current tolerance of the throttle hole needs to be adjusted, and the current tolerance of the nozzle also needs to be adjusted, so that the adjusted tolerance corresponding to the throttle hole and the adjusted tolerance corresponding to the nozzle can be obtained, and the adjusted tolerance corresponding to the throttle hole is determined as the first target tolerance, and the adjusted tolerance corresponding to the nozzle is determined as the second target tolerance.

[0056] As an optional embodiment, determining the first target tolerance and the second target tolerance based on the target nozzle includes: obtaining the first current flow rate and the second current flow rate in the current flow rate flowing through the target nozzle; and determining the first target tolerance and the second target tolerance based on the first current flow rate and the second current flow rate.

[0057] In this embodiment, the above-mentioned target nozzle may include at least: a throttle hole, a nozzle and a leakage gap. The first current flow rate can be used to represent the current flow rate flowing through the throttle hole, and the second current flow rate can be used to represent the current flow rate flowing through the nozzle. For example, the leakage gap can be located at the gap between the motor stator spray steel pipe and the shell. The leakage gap can be 0.2mm to 0.33mm. This is only an example for illustration and is not specifically limited.

[0058] Optionally, after analyzing the geometric features to obtain the target nozzle of the pipeline, a first current flow rate and a second current flow rate are obtained. For example, the current flow rate of the reducer-side throttle orifice and the current flow rate of the stator nozzle are obtained, and then, by performing an error analysis on the obtained current flow rates, it can be determined whether the flow rates flowing through the throttle orifice and the flow rates flowing through the nozzle can meet the current requirements of the lubrication pipeline. If the current requirements of the lubrication pipeline can be met, there is no need to adjust the current tolerance of the throttle orifice or the current tolerance of the nozzle. The current tolerance of the throttle orifice is determined as the first target tolerance, and the current tolerance of the nozzle is determined as the second target tolerance.

[0059] Optionally, if the above-mentioned flow rate flowing through the throttle hole and the above-mentioned flow rate flowing through the nozzle cannot meet the current lubrication pipeline requirements, the current tolerance of the throttle hole needs to be adjusted, and the current tolerance of the nozzle also needs to be adjusted, so that the adjusted tolerance corresponding to the throttle hole and the adjusted tolerance corresponding to the nozzle can be obtained, and the adjusted tolerance corresponding to the throttle hole is determined as the first target tolerance, and the adjusted tolerance corresponding to the nozzle is determined as the second target tolerance.

[0060] As an optional embodiment, based on the first current flow and the second current flow, the first target tolerance and the second target tolerance are determined, including: in response to the difference between the first current flow and the preset reducer flow being within the first preset difference range, the current tolerance of the throttle hole is determined as the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow being within the second preset difference range, the current tolerance of the nozzle is determined as the second target tolerance; in response to the difference between the first current flow and the preset reducer flow not being within the first preset difference range, the current tolerance of the throttle hole is adjusted to obtain the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow not being within the second preset difference range, the current tolerance of the nozzle is adjusted to obtain the second target tolerance.

[0061] In this embodiment, the above-mentioned preset reducer flow rate can be used to determine whether the current tolerance of the throttle hole needs to be adjusted, the above-mentioned first preset difference range can be used to determine whether the flow rate flowing through the throttle hole on the reducer side can meet the current lubrication pipeline requirements, the above-mentioned preset stator flow rate can be used to determine whether the current tolerance of the nozzle needs to be adjusted, and the above-mentioned second preset difference range can be used to determine whether the flow rate flowing through the stator nozzle can meet the current lubrication pipeline requirements.

[0062] Optionally, after obtaining a first current flow rate and a second current flow rate among the current flows flowing through the target nozzle, a difference between the first current flow rate and a preset reducer flow rate, and a difference between the second current flow rate and a preset sub-flow rate are obtained. A first target tolerance can then be determined by comparing whether the difference between the first current flow rate and the preset reducer flow rate is within a first preset difference range. A second target tolerance can be determined by comparing whether the difference between the second current flow rate and the preset sub-flow rate is within a second preset difference range.

[0063] Optionally, if the difference between the first current flow rate and the preset reducer flow rate is within a first preset difference range, the current tolerance of the throttle orifice is determined as the first target tolerance. If the difference between the second current flow rate and the preset sub-flow rate is within a second preset difference range, the current tolerance of the nozzle is determined as the second target tolerance. If the difference between the first current flow rate and the preset reducer flow rate is not within the first preset difference range, the current tolerance of the throttle orifice is adjusted, and the adjusted tolerance of the throttle orifice is determined as the first target tolerance. If the difference between the second current flow rate and the preset sub-flow rate is not within the second preset difference range, the current tolerance of the nozzle is adjusted, and the adjusted tolerance of the nozzle is determined as the second target tolerance.

[0064] As an optional embodiment, step S103 determines the flow rate flowing through the pipeline based on the first target tolerance and the second target tolerance, including: determining the current size of the target nozzle based on the first target tolerance and the second target tolerance; determining the actual flow rate of the target nozzle flowing through the pipeline based on the current size and the total flow rate flowing through the pipeline; in response to the actual flow rate satisfying the preset flow rate condition, determining the actual flow rate as the flow rate of the target nozzle flowing through the pipeline.

[0065] In this embodiment, the above-mentioned current size can be used to at least represent the nominal size of the throttle hole on the reducer side and the nominal size of the stator nozzle, the above-mentioned total flow rate flowing through the pipeline can be used to represent the total flow rate allocated to the pipeline, and the above-mentioned preset flow rate condition can be used to determine whether to determine the actual flow rate as the flow rate of the target nozzle flowing through the pipeline. This is only an example for illustration and is not specifically limited.

[0066] Optionally, after determining a first target tolerance for the reducer-side orifice in the pipeline and a second target tolerance for the stator nozzle in the pipeline based on the geometric characteristics, the current size of the target nozzle can be determined based on the first and second target tolerances. For example, the upper and lower limit sizes of the reducer-side orifice can be determined based on the first target tolerance, and the upper and lower limit sizes of the stator nozzle can be determined based on the second target tolerance. Then, based on these two limit sizes and the total flow rate allocated to the pipeline, the actual flow rate through the target nozzle in the pipeline can be determined. For example, the actual flow rate through the reducer-side orifice and the actual flow rate through the stator nozzle can be determined. This is for illustrative purposes only and is not intended to be a specific limitation.

[0067] Optionally, the flow rate through the pipeline nozzle can be determined by determining whether the actual flow rate meets a preset flow rate condition. If the actual flow rate meets the preset flow rate condition, the actual flow rate is determined as the flow rate through the pipeline nozzle. If the actual flow rate does not meet the preset flow rate condition, it is necessary to adjust the first target tolerance of the throttle orifice on the reducer side and the second target tolerance of the stator nozzle. Then, based on the adjusted first target tolerance and the adjusted second target tolerance, the current flow rate through the pipeline nozzle can be determined. Furthermore, by determining whether the current flow rate meets the preset flow rate condition, the flow rate through the pipeline nozzle can be determined.

[0068] Optionally, if the flow rate at this time meets the preset flow rate condition, the flow rate at this time is determined as the flow rate of the nozzle flowing through the pipeline. If the flow rate at this time does not meet the preset flow rate condition, the adjusted first target tolerance and the adjusted second target tolerance need to be further adjusted until the flow rate of the nozzle flowing through the pipeline can meet the preset flow rate condition.

[0069] As an optional embodiment, in response to the actual flow satisfying a preset flow condition, the actual flow is determined as the flow of the target nozzle flowing through the pipeline, including: in response to the difference between a first actual flow in the actual flow and a preset reducer flow being within a first preset difference range, and the difference between a second actual flow in the actual flow and a preset sub-flow being within a second preset difference range, the first actual flow and the second actual flow are determined as the flow of the target nozzle flowing through the pipeline.

[0070] In this embodiment, the first actual flow rate may be used to represent the actual flow rate flowing through the throttle hole, and the second actual flow rate may be used to represent the actual flow rate flowing through the nozzle.

[0071] Optionally, if the difference between a first actual flow in the actual flow and a preset reducer flow is within a first preset difference range, and the difference between a second actual flow in the actual flow and a preset sub-flow is within a second preset difference range, the first actual flow and the second actual flow are determined as the flow rates of the target nozzle flowing through the pipeline.

[0072] Alternatively, if the difference between a first actual flow rate in the actual flow and a preset reducer flow rate is not within a first preset difference range, and the difference between a second actual flow rate in the actual flow and a preset sub-flow rate is not within a second preset difference range, then the first target tolerance of the reducer-side orifice needs to be adjusted, and the second target tolerance of the stator nozzle needs to be adjusted. The current flow rate through the nozzle of the pipeline can then be determined based on the adjusted first and second target tolerances. Furthermore, by determining whether the current flow rate meets the preset flow condition, the flow rate through the nozzle of the pipeline can be determined.

[0073] This embodiment obtains the geometric characteristics of the pipeline in the vehicle, and by analyzing the geometric characteristics, it can determine the first target tolerance of the throttle hole on the reducer side of the pipeline, and the second target tolerance of the stator nozzle in the pipeline, and then according to the first target tolerance and the second target tolerance, the current size of the target nozzle can be determined, and according to the current size of the target nozzle and the total flow rate flowing through the pipeline, the actual flow rate of the target nozzle flowing through the pipeline can be determined, and then by judging whether the actual flow rate meets the preset flow rate condition, the flow rate of the target nozzle flowing through the pipeline can be determined, thereby achieving the purpose of avoiding insufficient flow rate at some lubrication points, solving the technical problems of reduced reliability of reducer shaft teeth due to insufficient lubrication and limited service life of the reducer, and achieving the technical effect of avoiding reduced reliability of reducer shaft teeth due to insufficient lubrication and extending the service life of the reducer.

[0074] The technical solutions of the embodiments of the present disclosure are illustrated below with reference to preferred implementations.

[0075] In current new energy reducers, active lubrication pipelines are often used to lubricate motors, bearings, tooth surfaces, etc. However, active lubrication pipelines have many manufacturing tolerances in actual applications, such as the processing tolerance of the nozzle and the fitting tolerance of the connection between the steel pipe and the shell. These tolerances have a great impact on the flow distribution results and even cause insufficient flow at some lubrication points, resulting in reduced reliability of the reducer shaft teeth due to insufficient lubrication and limited service life of the reducer.

[0076] In a related technology, a method for determining the amount of lubricating oil in an oil-cooled electric drive integrated system is disclosed. The method may include the following steps: selecting the optimal matching conditions for cooling, lubrication and efficiency to determine the lubricating oil injection amount of the oil-cooled electric drive integrated system based on the determined working conditions, first determining the basic oil injection amount required for heat dissipation and cooling of the oil-cooled electric drive integrated system, and then further determining the lubricating oil injection amount required for the oil-cooled electric drive integrated system according to the lubrication conditions of the reducer, and finally comprehensively analyzing the basic oil injection amount required for heat dissipation and cooling of the oil-cooled electric drive integrated system and the lubricating oil injection amount required for lubrication of the reducer to analyze the system efficiency, and selecting and determining the optimal lubricating oil injection amount required for the oil-cooled electric drive integrated system according to the most closely matched values ​​of the system efficiency determined by the oil-cooled electric drive integrated system, the basic oil injection amount required for heat dissipation and cooling of the oil-cooled electric drive integrated system, and the lubricating oil injection amount required for lubrication of the reducer. However, this method only determines the lubrication amount of the oil-cooled electric drive integrated system by selecting the optimal matching conditions of cooling, lubrication and efficiency based on the cooling, lubrication and efficiency of the oil-cooled electric drive integrated system. It is unable to perform flow distribution calculations based on design tolerances to confirm whether each lubrication point can meet the target flow demand. If the target flow demand cannot be met, consider adjusting the tolerance zone position, improving the processing accuracy and other methods to achieve the goal, and feedback to the design professional for optimization and iteration of the active lubrication solution to extend the service life of the reducer.

[0077] However, the disclosed embodiment proposes a flow distribution simulation analysis method that takes into account the manufacturing tolerances of active lubrication pipelines. By performing flow distribution calculations based on design tolerances, it is confirmed whether each lubrication point can meet the target flow demand. If the target flow demand cannot be met, methods such as adjusting the tolerance band position and improving processing accuracy are considered to achieve the goal, and feedback is given to the design professionals for optimization and iteration of the active lubrication solution, thereby achieving the purpose of avoiding insufficient flow at some lubrication points, solving the technical problems of reduced reliability of reducer shaft teeth and limited service life of the reducer due to insufficient lubrication, and achieving the technical effect of avoiding reduced reliability of reducer shaft teeth and extended service life of the reducer due to insufficient lubrication.

[0078] FIG2 is a flow chart of a method for quickly calculating flow distribution taking into account manufacturing tolerances of active lubrication pipelines according to an embodiment of the present disclosure. As shown in FIG2 , the method may include the following steps:

[0079] Step S201: Acquire a transmission geometric model.

[0080] After obtaining the transmission geometry model, proceed to step S202 to extract the oil circuit model: analyze the oil circuit and lubrication points in the above geometry model, name them according to the nozzle positions to facilitate flow statistics, and extract the fluid area from the oil circuit inlet to each outlet.

[0081] After extracting the oil circuit model, proceed to step S203 to input boundary conditions and target flow requirements, where the boundary conditions may include lubricant properties and model calculation conditions. Lubricant properties can be reflected by density and dynamic viscosity, and model calculation conditions may include but are not limited to: inlet flow, ambient temperature, etc.

[0082] After inputting the boundary conditions and target flow requirements, proceed to step S204 to solve the nominal dimensions of the pipeline and nozzle: based on the set target flow and inlet pressure, modify the pipeline and nozzle dimensions until the flow distribution result meets the requirements.

[0083] After solving the nominal dimensions of the pipeline and nozzle, proceed to step S205 to introduce design tolerances.

[0084] Optionally, introducing the design tolerance may specifically include the following steps:

[0085] Step 1: According to the pipeline nozzles, the nozzles can be named as follows: generator shaft, generator rear bearing, generator stator, generator side leakage, generator side reducer flow, drive motor shaft, drive motor rear bearing, drive motor stator, drive motor side leakage, drive motor side reducer flow.

[0086] Step 2: To facilitate calculation and result processing after introducing tolerance, the flow is divided into four parts: reducer side flow (generator side reducer flow and drive motor side reducer flow), motor stator flow (generator stator flow and drive motor stator flow), leakage (generator side leakage + drive motor side leakage), and other flows (flow at the generator shaft, flow at the generator rear bearing, flow at the drive motor shaft, and flow at the drive motor rear bearing).

[0087] Step three, the throttle hole on the reducer side can be processed on the steel pipe, the nominal size of the throttle hole can be 2mm, and the tolerance can be ±0.1mm; the stator nozzle can be processed on the steel pipe, the nominal size of the nozzle can be 1mm, and the tolerance can be ±0.1mm; the leakage position can be at the gap between the motor stator spray steel pipe and the housing, the maximum value of the leakage gap can be 0.33mm, and the minimum value can be 0.2mm; other flow rates are controlled by the oil guide end pad, which has good processing accuracy, so the influence of its tolerance is not considered.

[0088] Step 4: When the stator nozzle is at its largest and the reducer housing throttle hole and leakage tolerance are at their smallest, the stator has a maximum flow rate. When the stator nozzle is at its smallest and the reducer housing throttle hole and leakage tolerance are at their largest, the stator has a minimum flow rate. Regardless of how the machining tolerance changes, the stator flow rate must be between the minimum flow rate and the maximum flow rate. Similarly, the maximum and minimum values ​​of the reducer side and leakage can be obtained respectively.

[0089] After the design tolerance is introduced, the process proceeds to step S206 and step S207 to calculate the limit flow rate and determine whether the flow rate in the pipeline meets the target flow rate requirement.

[0090] If the flow in the pipeline meets the target flow requirement, the process proceeds to step S208 to output the tolerance design and flow distribution results. If the flow in the pipeline does not meet the target flow requirement, the process proceeds to step S209 to adjust the size and position of the tolerance band.

[0091] Optionally, the output flow distribution results can specifically be: outputting the flow distribution results under the nominal size, outputting the flow range of each part after introducing the tolerance, outputting the pressure distribution of the main cross-section of the lubricating oil circuit, and outputting the average pressure and average flow velocity at key positions.

[0092] Optionally, if the flow rate in the pipeline does not meet the target flow rate requirement, the tolerance band position can be adjusted by changing the tolerance design, thereby recalculating the flow rate in the pipeline until the flow rate meets the requirement. For example, if the nominal size of the throttle orifice on the reducer side is 2mm, the tolerance is ±0.2mm, and the total flow rate requirement on the reducer side is 3L / min, but the minimum flow rate on the reducer side is calculated to be 2.62L / min, this means that when the tolerance of the throttle orifice on the reducer side is close to the lower limit tolerance and other tolerances are at the upper limit tolerance, the flow rate may not meet the requirements of lubrication and heat dissipation, reducing the reliability of the reducer side bearing and posing a risk of failure. In this case, adjusting the processing accuracy and controlling the tolerance within ±0.1mm can make the minimum flow rate of the reducer 2.99L / min, which can meet the requirements of lubrication and heat dissipation.

[0093] For example, when the throttle hole tolerance on the reducer side is close to the upper limit tolerance and other tolerances are at the lower limit tolerance, the reducer side bearing has the maximum flow rate and is greater than the total flow rate requirement on the reducer side. The flow rate can meet the lubrication and heat dissipation requirements.

[0094] Optionally, the case where the flow rate on the motor stator side is the smallest may be when the flow rate tolerance on the motor stator side is close to the lower limit tolerance, and other tolerances are within the upper limit tolerance; the case where the flow rate on the motor stator side is the largest may be when the flow rate tolerance on the motor stator side is close to the upper limit tolerance, and other tolerances are within the lower limit tolerance.

[0095] Optionally, the case where the leakage is minimal may be when the flow tolerances on the generator side and the drive motor side are close to the lower limit tolerance, and other tolerances are within the upper limit tolerance; the case where the leakage is maximal may be when the flow tolerances on the generator side and the drive motor side are close to the upper limit tolerance, and other tolerances are within the lower limit tolerance.

[0096] In this embodiment, the transmission geometric model is obtained, and then the oil circuit model is extracted. After the oil circuit model is extracted, the boundary conditions and target flow requirements are input, the nominal dimensions of the pipeline and nozzle are solved, and the design tolerance is introduced. Then the limit flow is calculated to determine whether the flow in the pipeline meets the target flow requirement. If the flow in the pipeline meets the target flow requirement, the tolerance design and flow distribution results are output. If the flow in the pipeline does not meet the target flow requirement, the size and position of the tolerance band are adjusted, thereby solving the technical problems of reduced reliability of the reducer shaft teeth due to insufficient lubrication and limited service life of the reducer, and achieving the technical effect of avoiding reduced reliability of the reducer shaft teeth due to insufficient lubrication and extending the service life of the reducer.

[0097] According to an embodiment of the present disclosure, a device for determining flow rate of a pipeline in a vehicle is also provided. It should be noted that the device for determining flow rate of a pipeline in a vehicle can be used to execute a method for determining flow rate of a pipeline in a vehicle in an embodiment.

[0098] FIG3 is a schematic diagram of a flow rate determination device for a pipeline in a vehicle according to an embodiment of the present disclosure. As shown in FIG3 , the flow rate determination device 300 for a pipeline in a vehicle may include: an acquisition unit 301 , a first determination unit 302 , and a second determination unit 303 .

[0099] The acquisition unit 301 is configured to acquire geometric features of pipelines in the vehicle.

[0100] The first determination unit 302 is configured to determine a first target tolerance of the throttle hole on the reducer side in the pipeline and a second target tolerance of the nozzle of the stator in the pipeline based on the geometric characteristics, wherein the first target tolerance is used to standardize the nominal size of the throttle hole and the second target tolerance is used to standardize the nominal size of the nozzle.

[0101] The second determining unit 303 is configured to determine the flow rate flowing through the pipeline based on the first target tolerance and the second target tolerance.

[0102] Optionally, the first determining unit 302 may include: an analyzing module configured to obtain a target nozzle of the pipeline by analyzing geometric features; and a first determining module configured to determine a first target tolerance and a second target tolerance based on the target nozzle.

[0103] Optionally, the first determination module may include: an acquisition submodule, configured to acquire a first current flow rate and a second current flow rate among the current flow rates flowing through the target nozzle, wherein the target nozzle includes at least: a throttle hole and a nozzle, the first current flow rate is used to represent the current flow rate flowing through the throttle hole, and the second current flow rate is used to represent the current flow rate flowing through the nozzle; the first determination submodule, configured to determine the first target tolerance and the second target tolerance based on the first current flow rate and the second current flow rate.

[0104] Optionally, the first determination submodule can determine the first target tolerance and the second target tolerance based on the first current flow and the second current flow by performing the following steps: in response to the difference between the first current flow and the preset reducer flow being within the first preset difference range, the current tolerance of the throttle hole is determined as the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow being within the second preset difference range, the current tolerance of the nozzle is determined as the second target tolerance; in response to the difference between the first current flow and the preset reducer flow not being within the first preset difference range, the current tolerance of the throttle hole is adjusted to obtain the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow not being within the second preset difference range, the current tolerance of the nozzle is adjusted to obtain the second target tolerance.

[0105] Optionally, the second determination unit 303 may include: a second determination module, configured to determine the current size of the target nozzle based on the first target tolerance and the second target tolerance; a third determination module, configured to determine the actual flow rate of the target nozzle flowing through the pipeline based on the current size and the total flow rate flowing through the pipeline; and a fourth determination module, configured to determine the actual flow rate as the flow rate of the target nozzle flowing through the pipeline in response to the actual flow rate satisfying a preset flow rate condition, wherein the preset flow rate condition is used to determine whether the actual flow rate is determined as the flow rate of the target nozzle flowing through the pipeline.

[0106] Optionally, the fourth determination module may include: a second determination sub-module, configured to determine the first actual flow and the second actual flow as the flow of the target nozzle flowing through the pipeline in response to the difference between the first actual flow in the actual flow and the preset reducer flow being within a first preset difference range, and the difference between the second actual flow in the actual flow and the preset sub-flow being within a second preset difference range, wherein the first actual flow is used to represent the actual flow flowing through the throttle hole, and the second actual flow is used to represent the actual flow flowing through the nozzle.

[0107] In this embodiment, the acquisition unit is configured to acquire the geometric characteristics of the pipeline in the vehicle; the first determination unit is configured to determine the first target tolerance of the throttle hole on the reducer side of the pipeline and the second target tolerance of the nozzle of the stator in the pipeline based on the geometric characteristics; the second determination unit is configured to determine the flow rate flowing through the pipeline based on the first target tolerance and the second target tolerance, thereby solving the technical problems of reduced reliability of the reducer shaft teeth due to insufficient lubrication and limited service life of the reducer, and achieving the technical effect of avoiding the reduced reliability of the reducer shaft teeth due to insufficient lubrication and extending the service life of the reducer.

[0108] According to an embodiment of the present disclosure, a computer-readable storage medium is further provided. The storage medium includes a stored program, wherein the program executes the method for determining the flow rate of a pipeline in a vehicle in the embodiment.

[0109] According to an embodiment of the present disclosure, a processor is further provided, which is used to run a program, wherein when the program is run by the processor, the method for determining the flow rate of a pipeline in a vehicle in the embodiment is executed.

[0110] Figure 4 shows a block diagram of a processor according to an embodiment of the present disclosure. As shown in Figure 4, the processor 400 is configured to run a program, wherein the program, when executed by the processor, implements the method for determining flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure.

[0111] In an embodiment of the present disclosure, the processor 400 may execute an operating program of a method for determining flow rate of a pipeline in a vehicle.

[0112] Optionally, the processor 400 can be configured to perform the following steps: obtaining geometric characteristics of a pipeline in a vehicle; determining a first target tolerance of a throttle hole on the reducer side of the pipeline and a second target tolerance of a nozzle of a stator in the pipeline based on the geometric characteristics, wherein the first target tolerance is used to standardize the nominal size of the throttle hole and the second target tolerance is used to standardize the nominal size of the nozzle; and determining a flow rate through the pipeline based on the first target tolerance and the second target tolerance.

[0113] According to an embodiment of the present disclosure, a vehicle is further provided, which is used to execute any one of the methods for determining flow rate in a pipeline in a vehicle according to the embodiments.

[0114] According to another aspect of an embodiment of the present disclosure, an electronic device is provided. The electronic device includes a memory and a processor, wherein the memory is configured to store computer-executable instructions, and the processor is configured to execute the computer-executable instructions. When executed by the processor, the computer-executable instructions implement the method for determining flow rate in a pipeline in a vehicle according to an embodiment of the present disclosure.

[0115] Figure 5 shows a block diagram of an electronic device according to an embodiment of the present disclosure. Components of the electronic device 500 include, but are not limited to, a memory 510 and a processor 520. The processor 520 is connected to the memory 510 via a bus 530, and a database 550 is used to store data.

[0116] The electronic device 500 also includes an access device 540 that enables the electronic device 500 to communicate via one or more networks 560. Examples of these networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 540 may include one or more of any type of network interface (e.g., a network interface controller (NIC)) of wired or wireless type, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a Worldwide Interoperability for Microwave Access (Wi-MAX) interface, an Ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a Bluetooth interface, or a Near Field Communication (NFC).

[0117] In the embodiment of the present disclosure, the above-mentioned components of the electronic device 500 and other components not shown in FIG5 may also be connected to each other, for example, via a bus. It should be understood that the block diagram of the computing device structure shown in FIG5 is for illustrative purposes only and does not limit the scope of the present disclosure. Those skilled in the art may add or replace other components as needed.

[0118] Electronic device 500 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, a personal digital assistant, a laptop computer, a notebook computer, a netbook computer, etc.), a mobile phone (e.g., a smartphone), a wearable computing device (e.g., a smartwatch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or a personal computer (PC). Electronic device 500 may also be a mobile or stationary server.

[0119] The processor 520 is configured to execute the following computer-executable instructions, which, when executed by the processor, implement the steps of the above-mentioned image generation method or image generation data processing method.

[0120] According to another aspect of an embodiment of the present disclosure, a computer program product is further provided, including a computer program, which, when executed by a processor, implements the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure.

[0121] According to another aspect of an embodiment of the present disclosure, a computer program product is also provided, including a non-volatile computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the method for determining the flow rate of a pipeline in a vehicle of an embodiment of the present disclosure.

[0122] According to another aspect of an embodiment of the present disclosure, a computer program is further provided. When the computer program is executed by a processor, the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure is implemented.

[0123] Optionally, the computer program implements the following program code when executed by a processor: based on the geometric features, determining a first target tolerance of the throttle hole on the reducer side in the pipeline and a second target tolerance of the nozzle of the stator in the pipeline, wherein the first target tolerance is used to standardize the nominal size of the throttle hole and the second target tolerance is used to standardize the nominal size of the nozzle; based on the first target tolerance and the second target tolerance, determining the flow rate flowing through the pipeline.

[0124] According to another aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, which stores computer-executable instructions. When the computer-executable instructions are executed by a processor, the method for determining the flow rate of a pipeline in a vehicle according to an embodiment of the present disclosure is implemented.

[0125] Computer-readable storage media may also be referred to as computer storage media. They may include data signals transmitted in baseband or as part of a carrier wave, carrying readable program code. Such transmitted data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable storage media may transmit, propagate, or transfer programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0126] The program code contained in the computer-readable storage medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, radio frequency, etc., or any suitable combination of the foregoing.

[0127] The serial numbers of the above-mentioned embodiments of the present disclosure are for description only and do not represent the advantages or disadvantages of the embodiments.

[0128] In the above embodiments of the present disclosure, 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.

[0129] In the several embodiments provided in the present disclosure, 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.

[0130] 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.

[0131] In addition, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or 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.

[0132] 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 is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, abbreviated as Read-Only Memory), random access memory (RAM, abbreviated as Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0133] The above is only a preferred embodiment of the present disclosure. 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 disclosure. These improvements and modifications should also be regarded as within the scope of protection of the present disclosure. Industrial Applicability

[0134] The solution provided by the embodiment of the present disclosure can be applied to the process of determining the flow rate of the pipeline in the vehicle, obtaining the geometric characteristics of the pipeline in the vehicle; based on the geometric characteristics, determining the first target tolerance of the throttle hole on the reducer side of the pipeline, and the second target tolerance of the nozzle of the stator in the pipeline; based on the first target tolerance and the second target tolerance, determining the flow rate flowing through the pipeline, thereby solving the technical problems of reduced reliability of the reducer shaft teeth and limited service life of the reducer due to insufficient lubrication.

Claims

1. A method for determining flow rate of a pipeline in a vehicle, comprising: Obtaining geometric features of pipelines in the vehicle; Based on the geometric features, determining a first target tolerance of a throttle hole on the reducer side of the pipeline and a second target tolerance of a nozzle of a stator in the pipeline, wherein the first target tolerance is used to standardize a nominal size of the throttle hole, and the second target tolerance is used to standardize a nominal size of the nozzle; A flow rate through the pipeline is determined based on the first target tolerance and the second target tolerance.

2. The method according to claim 1, wherein: Based on the geometric features, determining a first target tolerance of a throttle hole on the reducer side of the pipeline and a second target tolerance of a nozzle of a stator in the pipeline includes: By analyzing the geometric features, a target nozzle of the pipeline is obtained; Based on the target orifice, the first target tolerance and the second target tolerance are determined.

3. The method according to claim 1, wherein: Based on the target nozzle, determining the first target tolerance and the second target tolerance includes: Acquire a first current flow rate and a second current flow rate of the current flow rate flowing through the target nozzle, wherein the target nozzle at least includes: the throttle hole and the nozzle, the first current flow rate is used to represent the current flow rate flowing through the throttle hole, and the second current flow rate is used to represent the current flow rate flowing through the nozzle; The first target tolerance and the second target tolerance are determined based on the first current flow rate and the second current flow rate.

4. The method according to claim 3, wherein: Determining the first target tolerance and the second target tolerance based on the first current flow rate and the second current flow rate includes: In response to a difference between the first current flow rate and a preset speed reducer flow rate being within a first preset difference range, determining a current tolerance of the orifice as the first target tolerance, and in response to a difference between the second current flow rate and a preset sub-flow rate being within a second preset difference range, determining a current tolerance of the orifice as the second target tolerance; In response to the difference between the first current flow and the preset reducer flow not being within the first preset difference range, the current tolerance of the throttle hole is adjusted to obtain the first target tolerance, and in response to the difference between the second current flow and the preset sub-flow not being within the second preset difference range, the current tolerance of the nozzle is adjusted to obtain the second target tolerance.

5. The method according to claim 4, wherein: Determining a flow rate through the pipeline based on the first target tolerance and the second target tolerance includes: determining a current size of the target nozzle based on the first target tolerance and the second target tolerance; determining an actual flow rate of a target nozzle through the pipeline based on the current size and a total flow rate through the pipeline; In response to the actual flow satisfying a preset flow condition, the actual flow is determined as the flow of a target nozzle flowing through the pipeline, wherein the preset flow condition is used to determine whether to determine the actual flow as the flow of the target nozzle flowing through the pipeline.

6. The method according to claim 5, wherein: In response to the actual flow satisfying a preset flow condition, determining the actual flow as a flow of a target nozzle flowing through the pipeline includes: In response to the difference between a first actual flow in the actual flow and the preset reducer flow being within the first preset difference range, and the difference between a second actual flow in the actual flow and the preset sub-flow being within the second preset difference range, the first actual flow and the second actual flow are determined as the flow rates of the target nozzle flowing through the pipeline, wherein the first actual flow is used to represent the actual flow rate flowing through the throttling hole, and the second actual flow is used to represent the actual flow rate flowing through the nozzle.

7. A flow rate determination device for a pipeline in a vehicle, comprising: An acquisition unit configured to acquire geometric features of a pipeline in a vehicle; a first determination unit configured to determine, based on the geometric feature, a first target tolerance of a throttle hole on the reducer side of the pipeline and a second target tolerance of a nozzle of a stator in the pipeline, wherein the first target tolerance is used to standardize a nominal size of the throttle hole, and the second target tolerance is used to standardize a nominal size of the nozzle; The second determining unit is configured to determine a flow rate flowing through the pipeline based on the first target tolerance and the second target tolerance.

8. A computer-readable storage medium, wherein: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for determining flow rate of a pipeline in a vehicle according to any one of claims 1 to 6.

9. A processor, wherein: The processor is used to run a program, wherein the program, when run by the processor, executes the method for determining flow rate of a pipeline in a vehicle according to any one of claims 1 to 6.

10. A vehicle, wherein: The vehicle is used to execute the method for determining flow rate of a pipeline in a vehicle as described in any one of claims 1 to 6.

11. An electronic device, comprising: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the method for determining the flow rate of a pipeline in a vehicle as described in any one of claims 1 to 6 is implemented.

12. A computer program product, wherein: The invention comprises a computer program, which, when executed by a processor, implements the method for determining the flow rate of a pipeline in a vehicle as claimed in any one of claims 1 to 6.

13. A computer program product, wherein: The invention comprises a non-volatile computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method for determining the flow rate of a pipeline in a vehicle as claimed in any one of claims 1 to 6.

14. A computer program, wherein: When the computer program is executed by a processor, the method for determining flow rate of a pipeline in a vehicle according to any one of claims 1 to 6 is implemented.

15. A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions, when executed by a processor, implement the method for determining flow rate of a pipeline in a vehicle as claimed in any one of claims 1 to 6.

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