Lubricating oil distribution control method, device and equipment and storage medium

Abstract

The invention relates to the technical field of vehicle control, and discloses a lubricating oil distribution control method, device and equipment and a storage medium. The method comprises the steps that lubricating oil of an oil pan, the lubricating oil temperature and the clutch state of a vehicle are obtained; the lubricating oil is distributed to a distribution ball valve according to the temperature of the lubricating oil; and the lubricating oil is distributed to a lubricating pipeline and / or a cooling pipeline through the distribution ball valve according to the clutch state, so that lubricating oil distribution control is achieved. The effectiveness and rationality of lubricating oil distribution can be improved, so that the heat dissipation efficiency is improved, and the power consumption of the whole vehicle is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a lubricating oil distribution control method, device, equipment and storage medium. Background Art

[0002] In hybrid powertrain systems, the lubricant distribution control method is crucial to improving the overall performance of the system. The hybrid powertrain integrates multiple power sources such as engines and motors, as well as mechanical components such as gears and clutches. Currently, conservative large-flow cooling and lubrication methods are mostly used for hybrid powertrains, and the structure is complex, requiring the use of multiple valves, making it difficult to coordinate the control of mechanical pumps and electronic pumps. The lubricant distribution efficiency and rationality of the hybrid powertrain are poor, which leads to low thermal efficiency and increased vehicle power consumption.

[0003] Therefore, how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption is a problem that needs to be solved urgently.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a lubricating oil distribution control method, device, equipment and storage medium, aiming to solve the technical problem of how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption.

[0006] To achieve the above objectives, the present application proposes a lubricating oil distribution control method, the method comprising:

[0007] Obtain the lubricating oil in the oil pan, the lubricating oil temperature, and the clutch status of the vehicle;

[0008] distributing the lubricating oil to a distribution ball valve according to the lubricating oil temperature;

[0009] The lubricating oil is distributed to the lubricating line and / or the cooling line according to the clutch state by the distribution ball valve, so as to realize the lubricating oil distribution control.

[0010] In one embodiment, distributing the lubricating oil to the distribution ball valve according to the lubricating oil temperature comprises:

[0011] determining a lubricating oil distribution strategy according to the lubricating oil temperature;

[0012] The lubricating oil is distributed to the distribution ball valve according to the lubricating oil distribution strategy.

[0013] In one embodiment, determining the lubricating oil distribution strategy according to the lubricating oil temperature includes:

[0014] When the lubricating oil temperature is less than or equal to a first preset temperature threshold or greater than a second preset temperature threshold, determining that the lubricating oil distribution strategy is a first distribution strategy, wherein the second preset temperature threshold is greater than the first preset temperature threshold;

[0015] When the lubricating oil temperature is greater than the first preset temperature threshold and less than or equal to the second preset temperature threshold, the lubricating oil distribution strategy is determined to be the second distribution strategy.

[0016] In one embodiment, distributing the lubricating oil to the distribution ball valve according to the first lubricating oil distribution strategy includes:

[0017] When the lubricating oil distribution strategy is the first distribution strategy, distributing the lubricating oil to the distribution ball valve;

[0018] When the lubricating oil distribution strategy is the second distribution strategy, the lubricating oil is divided into two paths according to a preset ratio, one of the two paths is distributed to the distribution ball valve, and the other of the two paths is distributed to the radiator and distributed to the distribution ball valve through the radiator.

[0019] In one embodiment, distributing the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve includes:

[0020] Obtaining a first flow demand of a lubrication pipeline and a second flow demand of a cooling pipeline;

[0021] The lubricating oil is distributed to a lubrication line and / or a cooling line according to the clutch state, the first flow demand, and the second flow demand.

[0022] In one embodiment, distributing the lubricating oil to the lubrication line and / or the cooling line according to the clutch state, the first flow demand and the second flow demand comprises:

[0023] When the clutch is in an unengaged state, the lubricating oil is distributed to a lubrication pipeline and a cooling pipeline respectively according to the first flow demand and the second flow demand;

[0024] When the clutch is in the engaged state, a flow value of the mechanical pump is acquired, and the lubricating oil is distributed to a lubrication pipeline or a cooling pipeline according to the flow value, the first flow demand, and the second flow demand.

[0025] In one embodiment, the step of distributing the lubricating oil to a lubrication pipeline or a cooling pipeline according to the flow value, the first flow requirement, and the second flow requirement includes:

[0026] When the flow value is greater than the second flow requirement, distributing the lubricating oil to the lubrication pipeline according to the first flow requirement;

[0027] When the flow value is less than or equal to the second flow requirement, the lubricating oil is distributed to the cooling pipeline according to the flow value and the second flow requirement.

[0028] In addition, to achieve the above-mentioned purpose, the present application also proposes a lubricating oil distribution control device, the lubricating oil distribution control device comprising:

[0029] An acquisition module, used for acquiring lubricating oil in the oil pan, lubricating oil temperature and clutch state of the vehicle;

[0030] A distribution module, used for distributing the lubricating oil to the distribution ball valve according to the temperature of the lubricating oil;

[0031] The distribution module is also used to distribute the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a lubricating oil distribution control device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the lubricating oil distribution control method as described above.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the lubricating oil distribution control method described above are implemented.

[0034] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the lubricating oil distribution control method described above are implemented.

[0035] The present application provides a lubricating oil distribution control method, which first obtains the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle; distributes the lubricating oil to a distribution ball valve according to the lubricating oil temperature; and distributes the lubricating oil to a lubrication pipeline and / or a cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control, which can improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing overall vehicle power consumption.

[0036] In summary, the present application can quickly and accurately distribute the lubricating oil to the distribution ball valve according to the lubricating oil temperature, and then reasonably and quickly distribute the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state as needed, thereby overcoming the technical defects of poor lubricating oil distribution efficiency and rationality, which leads to low thermal efficiency and increased power consumption of the whole vehicle. The application can improve the effectiveness and rationality of lubricating oil distribution, thereby improving the heat dissipation efficiency and reducing the power consumption of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 A flow chart of the first embodiment of the lubricating oil distribution control method of the present application;

[0040] Figure 2 Schematic diagram of the structure of the electric drive assembly provided for the first embodiment of the lubricating oil distribution control method of the present application

[0041] Figure 3 A flow chart of the second embodiment of the lubricating oil distribution control method of the present application;

[0042] Figure 4 A schematic diagram of a distribution path of a lubrication system of an electric drive assembly provided in Example 2 of the lubricating oil distribution control method of the present application;

[0043] Figure 5 This is a schematic diagram of the module structure of the lubricating oil distribution control device according to an embodiment of the present application;

[0044] Figure 6 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the lubricating oil distribution control method of the embodiment of the present application.

[0045] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0047] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0048] The main solution of the embodiment of the present application is: obtaining the lubricating oil in the oil pan, the lubricating oil temperature and the clutch status of the vehicle; distributing the lubricating oil to the distribution ball valve according to the lubricating oil temperature; distributing the lubricating oil to the lubrication line and / or cooling line according to the clutch status through the distribution ball valve to achieve lubricating oil distribution control.

[0049] In hybrid powertrain systems, the lubricant distribution control method is crucial to improving the overall performance of the system. The hybrid powertrain integrates multiple power sources such as engines and motors, as well as mechanical components such as gears and clutches. Currently, conservative large-flow cooling and lubrication methods are mostly used for hybrid powertrains, and the structure is complex. It requires the use of multiple valves, and it is difficult to coordinate the control of mechanical pumps and electronic pumps. The lubricant distribution efficiency and rationality of the hybrid powertrain are poor, which leads to low thermal efficiency and increased vehicle power consumption. Therefore, how to improve the effectiveness and rationality of lubricant distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption is a problem that needs to be solved urgently.

[0050] The present application overcomes the technical defects of poor efficiency and rationality of lubricating oil distribution, which leads to low thermal efficiency and increased power consumption of the whole vehicle, by quickly and accurately distributing lubricating oil to the distribution ball valve according to the lubricating oil temperature, and then reasonably and quickly distributing the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state as needed. The application can improve the effectiveness and rationality of lubricating oil distribution, thereby improving the heat dissipation efficiency and reducing the power consumption of the whole vehicle.

[0051] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a lubricating oil distribution control device, etc. The lubricating oil distribution control device is taken as an example to illustrate this embodiment and the following embodiments.

[0052] Based on this, the embodiment of the present application provides a lubricating oil distribution control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the lubricating oil distribution control method of the present application.

[0053] In this embodiment, the lubricating oil distribution control method includes steps S10 to S30:

[0054] Step S10, obtaining the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle.

[0055] It should be noted that the oil pan is a container for storing and collecting engine lubricating oil, usually located at the bottom of the engine. Lubricating oil is a liquid used for engine lubrication and cooling, and its temperature reflects the working state and thermal load of the engine. The clutch state reflects whether the vehicle is currently in the clutch engaged or disengaged state.

[0056] It is understandable that the lubricating oil temperature is detected by the temperature sensor in the thermal management module. Generally speaking, the lubricating oil is extracted from the oil pan, passes through the filter, thermal management module, distribution ball valve, and then enters the lubrication pipeline and cooling pipeline, and finally flows back to the oil pan under the action of gravity. Among them, the filter is used to filter impurities in the lubricating oil to ensure the cleanliness of the lubrication system, and the thermal management module has its own temperature sensor to detect the lubricating oil temperature.

[0057] In the specific implementation, the lubricating oil is extracted from the oil pan by the lubricating oil pump, filtered by the filter and then enters the thermal management module. The temperature sensor in the thermal management module monitors the lubricating oil temperature in real time and transmits the data to the central processing unit of the lubricating oil distribution control device. At the same time, the vehicle's clutch state sensor will also send the current clutch engagement or disengagement state information to the central processing unit, and then the central processing unit will distribute the lubricating oil to various components or pipelines according to the lubricating oil temperature and clutch state.

[0058] It is worth noting that the vehicle in this embodiment is a hybrid vehicle, and the electric drive assembly of the vehicle is an electric drive assembly of a mechanical pump and an electronic pump, such as Figure 2 As shown, Figure 2 The figure is a schematic diagram of the structure of the electric drive assembly. The electric drive assembly consists of a generator GM, a generator Engine, a clutch pump C1, a mechanical pump and a drive motor TM. The generator and the drive motor in the electric drive assembly are both designed with oil cooling. When the clutch is engaged, the engine can directly drive the wheel end. The mechanical pump is located behind the clutch. When the clutch is engaged, the mechanical pump also rotates.

[0059] Step S20, distributing the lubricating oil to a distribution ball valve according to the lubricating oil temperature.

[0060] It should be noted that the thermal management module determines whether the lubricating oil needs to be cooled or lubricated based on the lubricating oil temperature. If the lubricating oil temperature is within a certain range, the lubricating oil is directed to the radiator to lower the lubricating oil temperature. Conversely, if the lubricating oil temperature is appropriate or too high, the lubricating oil is directly directed to the distribution ball valve to avoid unnecessary cooling, thereby improving the response speed and efficiency of the system.

[0061] It can be understood that the distribution ball valve, that is, the lubricating oil distribution ball valve, is a device for controlling the flow direction of the lubricating oil, and its working principle is to control the flow direction of the lubricating oil through a solenoid valve.

[0062] In a feasible implementation, step S20 may include: determining a lubricating oil distribution strategy according to the lubricating oil temperature; and distributing the lubricating oil to a distribution ball valve according to the lubricating oil distribution strategy.

[0063] It should be noted that the lubricant distribution strategy is set according to different ranges of lubricant temperature to ensure that the lubricant can be properly distributed under different working conditions. For example, when the lubricant temperature is higher than a certain temperature value, the distribution strategy may indicate that the lubricant is directed to the radiator for cooling; when the lubricant temperature is appropriate or the lubricant temperature is too high, the lubricant is directly directed to the distribution ball valve to ensure that the lubricant can quickly and effectively reach the parts that need lubrication.

[0064] In a feasible embodiment, determining the lubricating oil distribution strategy based on the lubricating oil temperature includes: when the lubricating oil temperature is less than or equal to a first preset temperature threshold or greater than a second preset temperature threshold, determining the lubricating oil distribution strategy as a first distribution strategy, wherein the second preset temperature threshold is greater than the first preset temperature threshold; when the lubricating oil temperature is greater than the first preset temperature threshold and less than or equal to the second preset temperature threshold, determining the lubricating oil distribution strategy as a second distribution strategy.

[0065] It should be noted that the first preset temperature threshold and the second preset temperature threshold are set according to the working characteristics of the engine and the performance of the lubricating oil. Generally, the first preset temperature threshold is set as the lower limit of the temperature range of the lubricating oil that needs to be radiated, and the second preset temperature threshold is set as the upper limit of the temperature range of the lubricating oil that needs to be radiated.

[0066] It can be understood that when the lubricating oil temperature is less than or equal to the first preset temperature threshold, that is, the lubricating oil temperature ≤ X℃, it indicates that the lubricating oil is in a suitable temperature range and does not need to be cooled, that is, the first allocation strategy is used to distribute the lubricating oil; and when the lubricating oil temperature is higher than the second preset temperature threshold, that is, the lubricating oil temperature>Y℃, it indicates that the lubricating oil temperature is too high, and the heat dissipation effect of the radiator is not effective, and unnecessary cooling can be avoided, and the first allocation strategy is also used to distribute the lubricating oil. When the lubricating oil temperature is greater than the first preset temperature threshold and less than or equal to the second temperature threshold, that is, X℃<lubricating oil temperature≤Y℃, it indicates that the lubricating oil temperature is too high and the lubricating oil needs to be cooled, so the second allocation strategy is used to distribute the lubricating oil.

[0067] In a feasible implementation manner, distributing the lubricating oil to the distribution ball valve according to the first lubricating oil distribution strategy includes: when the lubricating oil distribution strategy is the first distribution strategy, distributing the lubricating oil to the distribution ball valve; when the lubricating oil distribution strategy is the second distribution strategy, dividing the lubricating oil into two paths according to a preset ratio, distributing one of the two paths to the distribution ball valve, and distributing the other of the two paths to the radiator and distributing to the distribution ball valve through the radiator.

[0068] It should be noted that when the lubricating oil temperature is ≤X°C or the lubricating oil temperature is >Y°C, all the lubricating oil passes through the distribution ball valve, that is, the lubricating oil is directly distributed to the distribution ball valve.

[0069] It is understandable that the thermal management module contains an oil ball valve, which can divide the lubricating oil into two paths, and the flow of the two paths can be adjusted in any proportion. When X℃<lubricating oil temperature≤Y℃, the lubricating oil needs to be cooled. The oil ball valve in the thermal management module divides the lubricating oil into two paths. One path of lubricating oil directly reaches the parts that need lubrication through the distribution ball valve, while the other path of lubricating oil is cooled through the radiator, and then the cooled lubricating oil is distributed to the distribution ball valve, and then reaches the parts that need lubrication through the distribution ball valve. The flow of the two paths of lubricating oil is controlled by a preset ratio to ensure that the lubricating oil can maintain a certain lubrication effect while cooling.

[0070] Step S30, distributing the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control.

[0071] It should be noted that in hybrid vehicles, the clutch state refers to the engaged and disengaged state of the clutch. In hybrid vehicles, clutch control is crucial to the switching of the power system and the transmission efficiency. When the clutch is in the engaged state, the engine and the motor drive the vehicle together, and the lubricant needs to be supplied to the lubrication system of the engine and the motor at the same time. When the clutch is in the disengaged state, the engine may be in a stopped state, and the lubricant is mainly supplied to the lubrication system of the motor.

[0072] It is understandable that the lubrication pipeline is used to transport lubricating oil to various parts that need lubrication, such as bearings, gears and shafts, in order to ensure that the mechanical parts are fully lubricated during operation, reduce friction and wear, and extend the life of the machinery. The cooling pipeline is used to transport cooling media (such as water, coolant) to various cooling points of the mechanical system. The main purpose is to control the temperature of the mechanical system by heat dissipation to prevent performance degradation or damage caused by overheating. The cooling pipeline is connected to the mechanical pump, which is connected to the generator stator, generator rotor, drive motor stator, drive motor rotor and clutch. By monitoring the clutch status, the distribution path of the lubricating oil can be intelligently adjusted according to the current power system status.

[0073] It is understandable that in hybrid vehicles, the monitoring and control of the clutch state is usually the responsibility of the vehicle's electronic control unit (ECU). The ECU adjusts the clutch engagement and disengagement state in real time according to the vehicle's operating mode and the driver's operating instructions. When the vehicle is in pure electric drive mode, the clutch is in a disengaged state, and the lubricant is mainly supplied to the motor's lubrication system to ensure its normal operation. When the vehicle switches to hybrid drive mode or engine drive mode, the clutch is in an engaged state, and the lubricant needs to be supplied to the engine and motor's lubrication systems at the same time to ensure the efficient operation of the entire power system.

[0074] It is worth noting that in order to achieve lubricant distribution control, the distribution ball valve intelligently adjusts the flow direction of the lubricant according to the clutch state. Through intelligent lubricant distribution control, hybrid vehicles can achieve optimal distribution of lubricant according to different operating modes and clutch states, thereby improving system efficiency and reliability. At the same time, this control strategy also helps to reduce energy consumption, extend the service life of lubricants, and further improve the overall performance of hybrid vehicles.

[0075] The present embodiment provides a lubricating oil distribution control method, which first obtains the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle; distributes the lubricating oil to the distribution ball valve according to the lubricating oil temperature; and distributes the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control, which can improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption.

[0076] In summary, this embodiment can quickly and accurately distribute the lubricating oil to the distribution ball valve according to the lubricating oil temperature, and then reasonably and quickly distribute the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state as needed, thereby overcoming the technical defects of poor efficiency and rationality of lubricating oil distribution, which leads to low thermal efficiency and increased power consumption of the whole vehicle. It can improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing power consumption of the whole vehicle.

[0077] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can refer to the above introduction, and will not be repeated later. Figure 3 , the step S30 further includes steps S301-S302:

[0078] Step S301, obtaining a first flow requirement of a lubrication pipeline and a second flow requirement of a cooling pipeline.

[0079] It should be noted that the distribution ball valve distributes the amount of oil entering the lubrication pipeline and the cooling pipeline. The proportion between the lubrication pipeline and the cooling pipeline can be adjusted at any ratio, and can be specifically distributed according to flow requirements.

[0080] It is understood that the flow demand refers to the specific demand for lubricating oil flow in the lubrication pipeline and the cooling pipeline under specific working conditions. The first flow demand of the lubrication pipeline is usually related to the lubrication demand of the engine and the motor, while the second flow demand of the cooling pipeline varies according to the temperature of the stator and rotor of the generator / drive motor. The higher the stator and rotor temperature, the greater the second flow demand.

[0081] Step S302 : distributing the lubricating oil to a lubrication line and / or a cooling line according to the clutch state, the first flow demand, and the second flow demand.

[0082] It should be noted that the control strategy of the distribution ball valve is based on the comprehensive consideration of the clutch state, the first flow demand and the second flow demand. When the clutch is in the disengaged state, the system gives priority to meeting the flow demand of the motor lubrication system, because the motor is the main power source at this time. When the clutch is in the engaged state, the system needs to meet the lubrication needs of the engine and the motor at the same time, and also consider the flow demand of the cooling line to ensure the efficient operation of the entire power system.

[0083] It is understandable that in order to achieve this control strategy, multiple valves are provided inside the distribution ball valve, each valve corresponds to different flow requirements, and through the precise control of the electronic control unit (ECU), each valve can be adjusted independently, thereby achieving fine distribution of the lubricating oil flow.

[0084] In a feasible implementation, step S302 may include: when the clutch state is an unengaged state, distributing the lubricating oil to the lubrication line and the cooling line respectively according to the first flow demand and the second flow demand; when the clutch state is an engaged state, obtaining the flow value of the mechanical pump, and distributing the lubricating oil to the lubrication line or the cooling line according to the flow value, the first flow demand and the second flow demand.

[0085] It should be noted that when the clutch is not engaged, that is, the clutch is in a disengaged state, the system prioritizes ensuring that the motor's lubrication needs are met, because the motor is the main power source at this time, that is, the mechanical pump cannot be turned on. At this time, the electronic pump meets the needs of the lubrication pipeline and the cooling pipeline, and the distribution ball valve will be adjusted according to the first flow demand and the second flow demand to ensure that the lubrication pipeline obtains sufficient lubricating oil. At the same time, the cooling pipeline can also obtain an appropriate amount of lubricating oil to maintain the temperature of the generator / drive motor stator and rotor within a reasonable range.

[0086] It is understandable that the flow value of the mechanical pump refers to the mechanical pump's ability to meet part of the flow demand of the cooling line. When the clutch is in the engaged state, the mechanical pump can start working, and it needs to meet the lubrication needs of the engine and the motor at the same time, and also take into account the flow demand of the cooling line. At this time, the flow value of the mechanical pump becomes particularly important because it can provide additional lubricating oil flow to cope with the high load demand when the engine and the motor are working at the same time. By obtaining the flow value of the mechanical pump, the system can further optimize the lubricating oil distribution strategy to ensure that the lubrication needs of the engine and the motor are fully met under high-load working conditions, and the cooling line can also obtain enough lubricating oil to maintain the heat dissipation efficiency of the system.

[0087] In a feasible implementation manner, the lubricating oil is distributed to the lubrication pipeline or the cooling pipeline according to the flow value, the first flow demand and the second flow demand, including: when the flow value is greater than the second flow demand, the lubricating oil is distributed to the lubrication pipeline according to the first flow demand; when the flow value is less than or equal to the second flow demand, the lubricating oil is distributed to the cooling pipeline according to the flow value and the second flow demand.

[0088] It should be noted that, assuming that the first flow demand of the lubrication pipeline and the second flow demand of the cooling pipeline are A and B respectively, and after the clutch is engaged, the mechanical pump can start working, and at this time the mechanical pump can meet part of the cooling pipeline demand C. If the flow value is less than or equal to the second flow demand, that is, C≤B, the lubricating oil is distributed to the cooling pipeline, and the mechanical pump meets part of the cooling pipeline demand C, and the distribution ball valve supplements the remaining demand BC of the cooling pipeline; if the flow value is greater than the second flow demand, that is, C>B, the side mechanical pump can meet all the demands of the cooling pipeline, and the distribution ball valve only supplies the lubrication pipeline. At this time, the power of the electronic pump can be adjusted according to demand, and the whole vehicle will have better economy.

[0089] like Figure 4 As shown, Figure 4 The figure is a schematic diagram of the distribution path of the electric drive assembly lubrication system. The lubricating oil is extracted from the oil pan, passes through the filter, the electronic pump, and the thermal management module. The thermal management module distributes the lubricating oil through the radiator ① to the lubricating oil distribution ball valve ②, or the lubricating oil is directly distributed to the lubricating oil distribution ball valve ②, and then enters the lubrication pipeline ③ and the cooling pipeline ④. The lubricating oil is transported to the bearings, gears, shafts and other parts that need lubrication through the lubrication pipeline ③, and the lubricating oil is sent to the mechanical pump through the cooling pipeline ④. The mechanical pump is connected to the generator stator, generator rotor, drive motor stator, drive motor rotor and clutch.

[0090] In this embodiment, by distributing lubricating oil to the lubrication line and / or cooling line according to the clutch state and the flow requirements of the lubrication line and the cooling line, the lubrication and cooling efficiency of the electric drive assembly can be effectively improved, thereby reducing the power consumption of the entire vehicle.

[0091] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the lubricant distribution control method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0092] This application also provides a lubricating oil distribution control device, please refer to Figure 5 , the lubricating oil distribution control device comprises:

[0093] The acquisition module 10 is used to acquire the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle.

[0094] The distribution module 20 is used to distribute the lubricating oil to the distribution ball valve according to the temperature of the lubricating oil.

[0095] The distribution module 20 is further used to distribute the lubricating oil to the lubricating pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control.

[0096] The present embodiment provides a lubricating oil distribution control device, which obtains the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle; distributes the lubricating oil to the distribution ball valve according to the lubricating oil temperature; distributes the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control, which can improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption.

[0097] In summary, this embodiment can quickly and accurately distribute the lubricating oil to the distribution ball valve according to the lubricating oil temperature, and then reasonably and quickly distribute the lubricating oil to the lubrication pipeline and / or cooling pipeline according to the clutch state as needed, thereby overcoming the technical defects of poor efficiency and rationality of lubricating oil distribution, which leads to low thermal efficiency and increased power consumption of the whole vehicle. It can improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing power consumption of the whole vehicle.

[0098] Optionally, the distribution module 20 is further used to determine a lubricating oil distribution strategy according to the lubricating oil temperature; and distribute the lubricating oil to the distribution ball valve according to the lubricating oil distribution strategy.

[0099] Optionally, the allocation module 20 is also used to determine that the lubricating oil allocation strategy is a first allocation strategy when the lubricating oil temperature is less than or equal to a first preset temperature threshold or greater than a second preset temperature threshold, wherein the second preset temperature threshold is greater than the first preset temperature threshold; and when the lubricating oil temperature is greater than the first preset temperature threshold and less than or equal to the second preset temperature threshold, determine that the lubricating oil allocation strategy is a second allocation strategy.

[0100] Optionally, the distribution module 20 is also used to distribute the lubricating oil to the distribution ball valve when the lubricating oil distribution strategy is the first distribution strategy; when the lubricating oil distribution strategy is the second distribution strategy, divide the lubricating oil into two paths according to a preset ratio, distribute one of the two paths to the distribution ball valve, and distribute the other of the two paths to the radiator and distribute it to the distribution ball valve through the radiator.

[0101] Optionally, the distribution module 20 is further used to obtain a first flow demand of the lubrication pipeline and a second flow demand of the cooling pipeline; and distribute the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state, the first flow demand and the second flow demand.

[0102] Optionally, the distribution module 20 is also used to distribute the lubricating oil to the lubrication pipeline and the cooling pipeline respectively according to the first flow demand and the second flow demand when the clutch state is in an unengaged state; when the clutch state is in an engaged state, obtain the flow value of the mechanical pump, and distribute the lubricating oil to the lubrication pipeline or the cooling pipeline according to the flow value, the first flow demand and the second flow demand.

[0103] Optionally, the distribution module 20 is also used to distribute the lubricating oil to the lubrication pipeline according to the first flow requirement when the flow value is greater than the second flow requirement; and to distribute the lubricating oil to the cooling pipeline according to the flow value and the second flow requirement when the flow value is less than or equal to the second flow requirement.

[0104] The lubricating oil distribution control device provided by the present application adopts the lubricating oil distribution control method in the above embodiment, which can solve the technical problem of how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving the heat dissipation efficiency and reducing the power consumption of the whole vehicle. Compared with the prior art, the beneficial effects of the lubricating oil distribution control device provided by the present application are the same as the beneficial effects of the lubricating oil distribution control method provided by the above embodiment, and the other technical features of the lubricating oil distribution control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0105] The present application provides a lubricating oil distribution control device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the lubricating oil distribution control method in the above-mentioned embodiment one.

[0106] Reference below Figure 6 , which shows a schematic diagram of the structure of a lubricating oil distribution control device suitable for implementing the embodiment of the present application. The lubricating oil distribution control device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The lubricating oil distribution control device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0107] like Figure 6 As shown, the lubricating oil distribution control device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the lubricating oil distribution control device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the lubricating oil distribution control device to communicate with other devices wirelessly or by wire to exchange data. Although the lubricating oil distribution control device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0108] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0109] The lubricating oil distribution control device provided by the present application adopts the lubricating oil distribution control method in the above embodiment, which can solve the technical problem of how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving the heat dissipation efficiency and reducing the power consumption of the whole vehicle. Compared with the prior art, the beneficial effects of the lubricating oil distribution control device provided by the present application are the same as the beneficial effects of the lubricating oil distribution control method provided by the above embodiment, and the other technical features in the lubricating oil distribution control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0110] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0111] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0112] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the lubricating oil distribution control method in the above-mentioned embodiment.

[0113] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0114] The computer-readable storage medium may be included in the lubricating oil distribution control device; or may exist independently without being assembled into the lubricating oil distribution control device.

[0115] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the lubricating oil distribution control device, the lubricating oil distribution control device: obtains the lubricating oil in the oil pan, the lubricating oil temperature and the clutch state of the vehicle; distributes the lubricating oil to the distribution ball valve according to the lubricating oil temperature; distributes the lubricating oil to the lubrication line and / or cooling line according to the clutch state through the distribution ball valve, so as to realize lubricating oil distribution control.

[0116] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0117] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0118] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0119] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned lubricating oil distribution control method, and can solve the technical problem of how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the lubricating oil distribution control method provided by the above-mentioned embodiment, and will not be repeated here.

[0120] The present application also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of the lubricating oil distribution control method as described above are implemented.

[0121] The computer program product provided by the present application can solve the technical problem of how to improve the effectiveness and rationality of lubricating oil distribution, thereby improving heat dissipation efficiency and reducing vehicle power consumption. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the lubricating oil distribution control method provided by the above embodiment, and will not be repeated here.

[0122] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A lubricating oil distribution control method, It is characterized in that The method comprises: Obtain the lubricating oil in the oil pan, the lubricating oil temperature, and the clutch status of the vehicle; distributing the lubricating oil to a distribution ball valve according to the lubricating oil temperature; The lubricating oil is distributed to the lubricating line and / or the cooling line according to the clutch state by the distribution ball valve, so as to realize the lubricating oil distribution control.

2. The method according to claim 1, It is characterized in that The step of distributing the lubricating oil to the distribution ball valve according to the lubricating oil temperature comprises: determining a lubricating oil distribution strategy according to the lubricating oil temperature; The lubricating oil is distributed to the distribution ball valve according to the lubricating oil distribution strategy.

3. The method according to claim 2, It is characterized in that The step of determining the lubricating oil distribution strategy according to the lubricating oil temperature comprises: When the lubricating oil temperature is less than or equal to a first preset temperature threshold or greater than a second preset temperature threshold, determining that the lubricating oil distribution strategy is a first distribution strategy, wherein the second preset temperature threshold is greater than the first preset temperature threshold; When the lubricating oil temperature is greater than the first preset temperature threshold and less than or equal to the second preset temperature threshold, the lubricating oil distribution strategy is determined to be the second distribution strategy.

4. The method according to claim 3, It is characterized in that The step of distributing the lubricating oil to the distribution ball valve according to the first lubricating oil distribution strategy comprises: When the lubricating oil distribution strategy is the first distribution strategy, distributing the lubricating oil to the distribution ball valve; When the lubricating oil distribution strategy is the second distribution strategy, the lubricating oil is divided into two paths according to a preset ratio, one of the two paths is distributed to the distribution ball valve, and the other of the two paths is distributed to the radiator and distributed to the distribution ball valve through the radiator.

5. The method according to claim 1, It is characterized in that The method of distributing the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve includes: Obtaining a first flow demand of a lubrication pipeline and a second flow demand of a cooling pipeline; The lubricating oil is distributed to a lubrication line and / or a cooling line according to the clutch state, the first flow demand, and the second flow demand.

6. The method according to claim 5, It is characterized in that The method of distributing the lubricating oil to a lubrication line and / or a cooling line according to the clutch state, the first flow demand and the second flow demand comprises: When the clutch is in an unengaged state, the lubricating oil is distributed to a lubrication pipeline and a cooling pipeline respectively according to the first flow demand and the second flow demand; When the clutch is in the engaged state, a flow value of the mechanical pump is acquired, and the lubricating oil is distributed to a lubrication pipeline or a cooling pipeline according to the flow value, the first flow demand, and the second flow demand.

7. The method according to claim 6, It is characterized in that The step of distributing the lubricating oil to a lubrication pipeline or a cooling pipeline according to the flow value, the first flow requirement, and the second flow requirement comprises: When the flow value is greater than the second flow requirement, distributing the lubricating oil to the lubrication pipeline according to the first flow requirement; When the flow value is less than or equal to the second flow requirement, the lubricating oil is distributed to the cooling pipeline according to the flow value and the second flow requirement.

8. A lubricating oil distribution control device, It is characterized in that The lubricating oil distribution control device comprises: An acquisition module, used for acquiring lubricating oil in the oil pan, lubricating oil temperature and clutch state of the vehicle; A distribution module, used for distributing the lubricating oil to the distribution ball valve according to the temperature of the lubricating oil; The distribution module is also used to distribute the lubricating oil to the lubrication pipeline and / or the cooling pipeline according to the clutch state through the distribution ball valve to achieve lubricating oil distribution control.

9. A lubricating oil distribution control device, It is characterized in that The lubricating oil distribution control device comprises: a memory, a processor, and a lubricating oil distribution control program stored in the memory and executable on the processor, wherein the lubricating oil distribution control program is configured to implement the lubricating oil distribution control method according to any one of claims 1 to 7.

10. A storage medium, It is characterized in that The storage medium stores a lubricating oil distribution control program, and when the lubricating oil distribution control program is executed by the processor, the lubricating oil distribution control method according to any one of claims 1 to 7 is implemented.

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