Method, device, computer readable storage medium for controlling engine oil dilution rate and vehicle

Abstract

The application provides a control method of oil dilution rate, which comprises the following steps: obtaining the vehicle speed, the oil dilution rate and the first running state of the engine of the vehicle; determining the second running state from the preset dilution rate library or the evaporation rate library according to the first running state when the oil dilution rate and the vehicle speed meet the preset condition; the oil dilution rate corresponding to the second running state is smaller than the oil dilution rate corresponding to the first running state, or the gasoline evaporation rate corresponding to the second running state is greater than the gasoline evaporation rate corresponding to the first running state; and adjusting the running state of the engine according to the second running state. Through the above method, the oil dilution rate is reduced or the gasoline evaporation rate is increased, the problem of excessively high oil dilution rate caused by the slow increase of the engine water temperature is avoided, and the damage of the excessively high oil dilution rate to the engine is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a control method and device for oil dilution rate, a computer readable storage medium and a vehicle. BACKGROUND

[0002] The phenomenon that gasoline mixed into engine oil is not easy to volatilize when the engine works for a long time under low water temperature (≤70℃) is called oil dilution. Meanwhile, the application of direct injection technology (easy gasoline wet wall) and mixing technology (short engine operation time and slow water temperature rise) aggravates the problem of oil dilution.

[0003] After the oil is diluted, the oil level will increase, and high oil dilution rate will also cause damage to the engine, such as reducing the service life of the engine, reducing fuel economy, and reducing the power of the engine. SUMMARY

[0004] Therefore, the present application aims to provide a control method and device for oil dilution rate, a computer readable storage medium and a vehicle to reduce the damage of high oil dilution rate to the engine.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is as follows:

[0006] The present application provides a control method for oil dilution rate, which comprises:

[0007] Obtaining the vehicle speed, oil dilution rate of the vehicle, and the first running state of the engine of the vehicle;

[0008] In the case that the oil dilution rate and the vehicle speed meet the preset conditions, determining the second running state from the preset dilution rate library or evaporation rate library according to the first running state; the oil dilution rate corresponding to the second running state is less than the oil dilution rate corresponding to the first running state, or the gasoline evaporation rate corresponding to the second running state is greater than the gasoline evaporation rate corresponding to the first running state; the dilution rate library is used to record the oil dilution rate corresponding to different running states of the engine; the evaporation rate library is used to record the gasoline evaporation rate corresponding to different running states of the engine;

[0009] Adjusting the running state of the engine according to the second running state.

[0010] Optionally, the first running state includes engine water temperature, and the step of determining the second running state from the preset dilution rate library or evaporation rate library according to the first running state in the case that the oil dilution rate and the vehicle speed meet the preset conditions comprises:

[0011] If the engine coolant temperature is less than or equal to a first threshold when the oil dilution rate and vehicle speed meet preset conditions, then the first oil dilution rate corresponding to the first operating state is determined from the preset dilution rate library.

[0012] The second operating state corresponding to the second oil dilution rate is determined from the dilution rate library based on the first oil dilution rate; the second oil dilution rate is less than the first oil dilution rate.

[0013] Optionally, the first operating state includes engine coolant temperature, and the step of determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, when the oil dilution rate and vehicle speed meet preset conditions, includes:

[0014] If the engine coolant temperature is greater than a first threshold when the oil dilution rate and vehicle speed meet the preset conditions, the first gasoline evaporation rate corresponding to the first operating state is determined from the preset evaporation rate library.

[0015] Based on the first gasoline evaporation rate, a second operating state corresponding to the second gasoline evaporation rate is determined from the evaporation rate database; the second gasoline evaporation rate is greater than the first gasoline evaporation rate.

[0016] Optionally, the first operating state includes a first torque and a first speed, and the second operating state includes a second torque and a second speed;

[0017] When the oil dilution rate and vehicle speed meet preset conditions, determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state includes:

[0018] When the oil dilution rate and vehicle speed meet preset conditions, a second torque and a second speed are determined from a preset dilution rate library or evaporation rate library based on the first torque and the first speed; the oil dilution rate corresponding to the second torque and the second speed is less than the oil dilution rate corresponding to the first torque and the first speed, or the gasoline evaporation rate corresponding to the second torque and the second speed is greater than the gasoline evaporation rate corresponding to the first torque and the first speed.

[0019] Optionally, the preset conditions include at least one of the following:

[0020] The oil dilution rate is greater than or equal to the second threshold.

[0021] The vehicle speed is greater than or equal to the third threshold.

[0022] Optionally, adjusting the engine's operating state according to the second operating state includes:

[0023] Obtain the operating conditions of the vehicle and the corresponding operating requirements for each operating condition;

[0024] A third operating state is determined from the second operating state based on a preset operating condition priority and the operating requirements of the operating condition; the third operating state meets the operating requirements of the operating condition.

[0025] The engine's operating state is adjusted according to the third operating state.

[0026] Optionally, obtaining the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine includes:

[0027] The system receives first information sent by the engine controller of the vehicle, the first information including the vehicle speed and the first operating state of the vehicle's engine.

[0028] The oil dilution rate of the vehicle is calculated based on the first operating state.

[0029] A second aspect of this application provides an oil dilution rate control device, the device comprising:

[0030] The data acquisition module is used to acquire the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine.

[0031] The second operating state determination module is used to determine a second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, provided that the oil dilution rate and vehicle speed meet preset conditions. The oil dilution rate corresponding to the second operating state is less than the oil dilution rate corresponding to the first operating state, or the gasoline evaporation rate corresponding to the second operating state is greater than the gasoline evaporation rate corresponding to the first operating state. The dilution rate library is used to record the oil dilution rates corresponding to different operating states of the engine; the evaporation rate library is used to record the gasoline evaporation rates corresponding to different operating states of the engine.

[0032] An engine control module is used to adjust the operating state of the engine according to the second operating state.

[0033] A third aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for controlling the oil dilution rate.

[0034] This application provides a vehicle in four aspects, including an oil dilution rate control device as described above, to implement the oil dilution rate control method described above.

[0035] Compared with existing technologies, the oil dilution rate control method of the present invention has the following advantages:

[0036] This invention provides a method for controlling engine oil dilution rate. After acquiring vehicle speed, engine oil dilution rate, and the first operating state of the vehicle's engine, if the engine oil dilution rate and vehicle speed meet preset conditions, a second operating state can be determined from a preset dilution rate library or evaporation rate library based on the first operating state. Then, the engine operating state is adjusted according to the second operating state. The preset dilution rate library or evaporation rate library records the engine oil dilution rate or gasoline evaporation rate corresponding to different engine operating states. Therefore, the problem of excessively high engine oil dilution rate caused by slow engine coolant temperature rise can be avoided by reducing the engine oil dilution rate, and the engine oil dilution rate can be reduced by increasing the gasoline evaporation rate, thus significantly mitigating the damage to the engine caused by excessively high engine oil dilution rate. At the same time, when the vehicle speed and engine oil dilution rate meet the conditions, the second operating state can be quickly determined and the engine adjusted, avoiding long-term damage to the engine caused by oil dilution. Attached Figure Description

[0037] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0038] Figure 1 This is a flowchart illustrating an embodiment of a method for controlling the oil dilution rate according to the present invention;

[0039] Figure 2 A flowchart illustrating another embodiment of the oil dilution rate control method of the present invention;

[0040] Figure 3 This is a flowchart illustrating another embodiment of the oil dilution rate control method of the present invention;

[0041] Figure 4 This is a structural diagram of an embodiment of an oil dilution rate control device according to the present invention. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] The vehicle controller, also known as the powertrain controller, is the core control component of the entire vehicle system. It is primarily responsible for collecting signals from various vehicle components, such as accelerator pedal signals, brake pedal signals, and signals from other components. After making corresponding judgments based on the collected signals, it controls lower-level component controllers, such as the engine controller and the electric power steering system, to perform corresponding actions. Vehicle controllers mainly include the hybrid system vehicle controller (HCU) and the new energy vehicle controller (VCU).

[0045] The engine control unit (ECU) is primarily responsible for continuously monitoring and controlling the normal operation of the engine.

[0046] The engine's operating status, also known as the engine's working status, refers to the state of the engine when it is started, stopped (off), and operating under various loads, such as engine thrust, water temperature, torque, and speed.

[0047] Vehicle operating conditions refer to the working conditions of a car during transportation. Based on the form of movement, these conditions mainly include: starting, acceleration, constant speed, deceleration, turning, going uphill / downhill, and stopping. Based on the driver's control method, these conditions mainly include: gear shifting, coasting (coasting in neutral, coasting in neutral, coasting while accelerating, coasting while stationary), braking (emergency braking, speed-controlled braking, and brake braking), throttle control, steering, and reversing.

[0048] Reference Figure 1 The diagram shows a flowchart of an embodiment of an oil dilution rate control method according to the present invention. The oil dilution rate control method can be executed by the vehicle's own engine controller, vehicle controller, or other vehicle control, or it can be executed through external devices or networks. The present invention does not limit this.

[0049] The method for controlling the oil dilution rate may include:

[0050] 101. Obtain the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine;

[0051] 102. When the oil dilution rate and vehicle speed meet preset conditions, a second operating state is determined from a preset dilution rate library or evaporation rate library based on the first operating state; the oil dilution rate corresponding to the second operating state is less than the oil dilution rate corresponding to the first operating state, or the gasoline evaporation rate corresponding to the second operating state is greater than the gasoline evaporation rate corresponding to the first operating state; the dilution rate library is used to record the oil dilution rate corresponding to different operating states of the engine; the evaporation rate library is used to record the gasoline evaporation rate corresponding to different operating states of the engine;

[0052] 103. Adjust the operating state of the engine according to the second operating state.

[0053] The preset conditions for oil dilution rate serve as warnings when the oil dilution rate is too high. These conditions can refer to either a dilution rate threshold or a threshold for the dilution rate itself. Similarly, the preset conditions for vehicle speed can refer to either a speed threshold or an acceleration threshold, preventing issues at low speeds. Both can be set according to the actual conditions of the vehicle.

[0054] It is understandable that the rate at which gasoline mixes with engine oil, leading to an increase in the oil dilution rate (i.e., the oil dilution rate), varies depending on the engine's operating state. For example, at higher engine speeds, gasoline mixes more easily with the engine oil, resulting in a higher oil dilution rate. Therefore, in this embodiment of the invention, the oil dilution rate under different engine operating states can be calculated through experiments, simulations, etc., and saved to a preset database, i.e., a dilution rate library.

[0055] The dilution rate library can be set in vehicle networks such as engine controllers and vehicle controllers, for example, as a dilution rate map, or it can be set in a cloud network. Specifically, taking the vehicle controller as an example, when the oil dilution rate is too high and needs to be controlled, the vehicle controller can call the dilution rate library. Based on the engine's current operating state (first operating state), it determines a lower oil dilution rate operating state (second operating state) from the library and controls the engine controller to perform corresponding actions based on the second operating state, thereby adjusting the engine's operating state to the second operating state and reducing the oil dilution rate. In this way, the oil dilution rate can be effectively controlled, avoiding the problem of excessively high oil dilution rate caused by slow engine coolant temperature rise and untimely gasoline evaporation, thus reducing the damage to the engine caused by excessive oil dilution.

[0056] Furthermore, the gasoline evaporation rate described in this embodiment of the invention refers to the evaporation rate of gasoline mixed in engine oil. It is understood that the gasoline evaporation rate varies depending on the engine's operating state. For example, when the engine intake air volume is high, engine fuel consumption increases, and the corresponding engine coolant temperature increases, resulting in a higher gasoline evaporation rate. Therefore, the gasoline evaporation rate under different engine operating states can be calculated through experiments, simulations, etc., and saved to a preset database, i.e., an evaporation rate database.

[0057] The evaporation rate library can be set in vehicle networks such as engine controllers and vehicle controllers, for example, as an evaporation rate map, or it can be set in a cloud network. Specifically, taking the vehicle controller as an example, when the oil dilution rate is too high and needs to be controlled, the vehicle controller can call the evaporation rate library, determine the operating state with a higher gasoline evaporation rate (the second operating state) from the evaporation rate library based on the current engine operating state (the first operating state), and control the engine controller to perform corresponding actions based on the second operating state, so that the engine operating state is adjusted to the second operating state, thereby increasing the gasoline evaporation rate, reducing the gasoline dilution rate, and mitigating the damage to the engine caused by excessive oil dilution.

[0058] Optionally, the first operating state includes engine coolant temperature; step 102, which involves determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state when the oil dilution rate and vehicle speed meet preset conditions, may include:

[0059] S11. If the engine water temperature is less than or equal to the first threshold when the engine oil dilution rate and vehicle speed meet the preset conditions, then the first engine oil dilution rate corresponding to the first operating state is determined from the preset dilution rate library.

[0060] S12. Determine a second operating state corresponding to a second oil dilution rate from the dilution rate library based on the first oil dilution rate; the second oil dilution rate is less than the first oil dilution rate. Alternatively, step 102, where the oil dilution rate and vehicle speed meet preset conditions, determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state may include:

[0061] S21. If the engine coolant temperature is greater than the first threshold when the oil dilution rate and vehicle speed meet the preset conditions, the first gasoline evaporation rate corresponding to the first operating state is determined from the preset evaporation rate library.

[0062] S22. Based on the first gasoline evaporation rate, determine the second operating state corresponding to the second gasoline evaporation rate from the evaporation rate database; the second gasoline evaporation rate is greater than the first gasoline evaporation rate.

[0063] When the engine coolant temperature is low (less than or equal to a first threshold), the gasoline evaporation rate is generally low across different engine operating conditions. Therefore, slowing down the rate at which gasoline mixes with the engine oil can prevent excessive oil dilution. Conversely, when the engine coolant temperature is high (above the first threshold), the gasoline evaporation rate is high. Adjusting the engine operating conditions to increase the gasoline evaporation rate can effectively reduce oil dilution. The first threshold for engine coolant temperature can be set based on the specific vehicle and gasoline conditions.

[0064] Specifically, refer to Figure 2 The diagram shows a flowchart of another embodiment of the oil dilution rate control method of the present invention, wherein the preset conditions can be that the oil dilution rate is not less than a second threshold and the vehicle speed is not less than a third threshold.

[0065] When the engine coolant temperature is less than or equal to a first threshold, the oil dilution rate corresponding to the first operating state, i.e., the first oil dilution rate, can be determined by calling the dilution rate library, i.e., the dilution rate map. Furthermore, since the dilution rate map records the oil dilution rates corresponding to different engine operating states, a lower dilution rate, i.e., the second oil dilution rate, can be selected from the dilution rate map based on the first oil dilution rate, thereby determining the second operating state corresponding to the second oil dilution rate. Finally, the engine is adjusted according to the second operating state to reduce the oil dilution rate.

[0066] When the engine coolant temperature exceeds a first threshold, the gasoline evaporation rate corresponding to the first operating state (i.e., the first gasoline evaporation rate) can be determined by calling the evaporation rate library, i.e., the evaporation rate map. Furthermore, since the evaporation rate map records the gasoline evaporation rates corresponding to different engine operating states, a higher evaporation rate (i.e., the second gasoline evaporation rate) can be selected from the evaporation rate map based on the first gasoline evaporation rate, thereby determining the second operating state corresponding to the second gasoline evaporation rate. Finally, the engine is adjusted according to the second operating state to increase the gasoline evaporation rate and reduce the oil dilution rate.

[0067] As shown above, when the engine coolant temperature is low, the method of determining the engine operating state corresponding to a lower oil dilution rate by calling the dilution rate library achieves rapid and effective control of the oil dilution rate, avoiding the problem of excessively high oil dilution rate caused by slow engine coolant temperature rise and untimely gasoline evaporation. Furthermore, when the engine coolant temperature is high, the method of determining the engine operating state corresponding to a higher gasoline evaporation rate by calling the evaporation rate library increases the gasoline evaporation rate, thereby effectively reducing the oil dilution rate and mitigating the damage to the engine caused by excessively high oil dilution rate.

[0068] Optionally, the first operating state includes a first torque and a first speed, and the second operating state includes a second torque and a second speed; step 102, which involves determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state when the oil dilution rate and vehicle speed meet preset conditions, may include:

[0069] S31. When the oil dilution rate and vehicle speed meet the preset conditions, determine the second torque and the second speed from the preset dilution rate library or evaporation rate library according to the first torque and the first speed; the oil dilution rate corresponding to the second torque and the second speed is less than the oil dilution rate corresponding to the first torque and the first speed, or the gasoline evaporation rate corresponding to the second torque and the second speed is greater than the gasoline evaporation rate corresponding to the first torque and the first speed.

[0070] Referring to the dilution rate map shown in Table 1, this map records the oil dilution rate corresponding to different torques and speeds, where d represents dilution, dN represents the dilution rate corresponding to different torques and speeds, and N is a positive integer. When the oil dilution rate and vehicle speed meet preset conditions, the current oil dilution rate of the engine corresponding to the first torque and first speed can be determined by calling the dilution rate map. Then, based on the current oil dilution rate, a lower oil dilution rate is selected from the dilution rate table, and the second torque and second speed are determined based on the selected oil dilution rate. Finally, the engine is adjusted according to the second torque and second speed to reduce the oil dilution rate.

[0071] Table 1

[0072]

[0073] Similarly, referring to the evaporation rate map shown in Table 2, which records the gasoline evaporation rate corresponding to different torques and speeds, where e represents evaporation, eN represents the dilution rate corresponding to different torques and speeds, and N is a positive integer. When the oil dilution rate and vehicle speed meet preset conditions, the current gasoline evaporation rate of the engine corresponding to the first torque and first speed can be determined by calling the evaporation rate map. Then, based on the current gasoline evaporation rate, a higher gasoline evaporation rate is selected from the evaporation rate table, and the second torque and second speed are determined based on the selected gasoline evaporation rate. Finally, the engine is adjusted according to the second torque and second speed to increase the gasoline evaporation rate and reduce the oil dilution rate.

[0074] Table 2

[0075]

[0076] Torque and speed can accurately reflect the engine's operating status. Therefore, by controlling engine torque and speed alone, the oil dilution rate can be controlled, simplifying the complex analysis process of engine operating status and saving computing resources of the vehicle network.

[0077] Optionally, the preset conditions may include at least one of the following:

[0078] The oil dilution rate is greater than or equal to the second threshold.

[0079] The vehicle speed is greater than or equal to the third threshold.

[0080] The second and third thresholds can be set according to the actual situation of the vehicle, and the present invention does not limit them.

[0081] When the vehicle speed is low, i.e. less than the third threshold, the oil dilution rate is easily increased due to incomplete combustion of gasoline, and the adjustment range of engine operating status is small. Therefore, when the vehicle speed is not less than the third threshold, i.e. higher, the aforementioned oil dilution rate control method is implemented, which has a better effect on controlling the oil dilution rate.

[0082] Optionally, step 103, adjusting the engine's operating state according to the second operating state, includes:

[0083] S41. Obtain the operating conditions of the vehicle and the corresponding operating requirements for each operating condition;

[0084] S42. Based on the preset operating condition priority and the operating requirements of the operating condition, a third operating state is determined from the second operating state; the third operating state meets the operating requirements of the operating condition.

[0085] S43. Adjust the engine's operating state according to the third operating state.

[0086] Different second operating states correspond to different oil dilution rates. In this embodiment of the invention, operating condition priorities can be preset, and then, based on the vehicle's operating conditions, a suitable operating state, i.e., a third operating state, can be selected layer by layer from the second operating states according to the operating condition priorities. The third operating state meets the operating requirements of the vehicle's operating conditions. Of course, the operating state corresponding to the lowest oil dilution rate or the operating state corresponding to the highest gasoline evaporation rate among the second operating states can also be determined as the third operating state; this invention does not limit this.

[0087] The vehicle's operating conditions can be obtained from the vehicle's various electronic control units.

[0088] Taking engine speed as an example, the preset operating condition priority is: gear > uphill / downhill. The vehicle's current operating condition is: 2nd gear, downhill. Different second operating conditions are 1200rpm, 1800rpm, and 2300rpm. When determining the third operating condition from the second operating conditions, since the engine speed requirement for 2nd gear is within the range of 1000-2000rpm, the operating condition of 2300rpm cannot be selected. Furthermore, since the vehicle is currently downhill, the engine speed is not suitable for being too high. Therefore, the third operating condition can be determined as 1200rpm, and then adjustments are made according to the third operating condition to ensure that the engine speed is 1200rpm.

[0089] By using the above methods, the engine's adjusted operating state can meet the vehicle's operating requirements, thereby avoiding vehicle instability and safety issues caused by discrepancies between the engine's operating state and the vehicle's operating conditions.

[0090] Optionally, step 101, which involves obtaining the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine, may include:

[0091] S51. Receive first information sent by the engine controller of the vehicle, the first information including the vehicle speed and the first operating state of the vehicle's engine.

[0092] S52. Calculate the oil dilution rate of the vehicle based on the first operating state.

[0093] Reference Figure 3 The diagram shows a flowchart of another embodiment of the oil dilution rate control method of the present invention, wherein HCU represents the vehicle controller of a hybrid vehicle and ECU represents the engine controller of the vehicle.

[0094] It is understandable that different oil dilution ratios will have different effects on the engine's operating state; that is, different oil dilution ratios correspond to different engine states, which can include engine torque, speed, intake air volume, etc. Therefore, by using different engine operating state data and corresponding oil dilution ratio data, an oil dilution model can be built, with engine operating state as input and oil dilution ratio as output, and the oil dilution model can be written into the HCU.

[0095] The HCU sends an information request to the ECU. After receiving the first information from the ECU, including the engine operating status and vehicle speed, it can use the oil dilution model to calculate the degree of oil dilution, i.e., the oil dilution rate. Then, through the engine operation control module, it adjusts the engine operating condition based on the oil dilution rate, the first operating state, and the vehicle speed. That is, it determines the second operating state according to the oil dilution rate control method described above, and sends control commands to the ECU based on the second operating state, so that the ECU adjusts the engine operating state to the second operating state, thereby controlling the reduction of the oil dilution rate or the increase of the gasoline evaporation rate.

[0096] By using the above method, the oil dilution rate can be monitored and controlled without adding an oil level sensor, thus reducing the manufacturing and maintenance costs of the vehicle.

[0097] In summary, this invention provides a method for controlling engine oil dilution rate. After acquiring the vehicle speed, engine oil dilution rate, and the first operating state of the vehicle's engine, if the engine oil dilution rate and vehicle speed meet preset conditions, a second operating state can be determined from a preset dilution rate library or evaporation rate library based on the first operating state. Then, the engine operating state is adjusted according to the second operating state. The preset dilution rate library or evaporation rate library records the engine oil dilution rate or gasoline evaporation rate corresponding to different engine operating states. Therefore, the problem of excessively high engine oil dilution rate caused by slow engine coolant temperature rise can be avoided by reducing the engine oil dilution rate, and the engine oil dilution rate can be reduced by increasing the gasoline evaporation rate, thus significantly mitigating the damage to the engine caused by excessively high engine oil dilution rate. Simultaneously, when the vehicle speed and engine oil dilution rate meet the conditions, the second operating state can be quickly determined and the engine adjusted, avoiding prolonged damage to the engine caused by oil dilution.

[0098] Reference Figure 4 The diagram illustrates a structural representation of an embodiment of an oil dilution rate control device according to the present invention. The device can be installed in a vehicle network such as the vehicle's own engine controller or vehicle controller, or it can be installed in an external device; the present invention does not limit this. The device 200 may include:

[0099] The data acquisition module 201 is used to acquire the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine.

[0100] The second operating state determination module 202 is used to determine a second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, provided that the oil dilution rate and vehicle speed meet preset conditions; the oil dilution rate corresponding to the second operating state is less than the oil dilution rate corresponding to the first operating state, or the gasoline evaporation rate corresponding to the second operating state is greater than the gasoline evaporation rate corresponding to the first operating state; the dilution rate library is used to record the oil dilution rate corresponding to different operating states of the engine; the evaporation rate library is used to record the gasoline evaporation rate corresponding to different operating states of the engine.

[0101] Engine control module 203 is used to adjust the operating state of the engine according to the second operating state.

[0102] Optionally, the first operating state includes engine coolant temperature;

[0103] The second operating status determination module includes:

[0104] The oil dilution rate determination submodule is used to determine the first oil dilution rate corresponding to the first operating state from a preset dilution rate library if the engine coolant temperature is less than or equal to a first threshold when the oil dilution rate and vehicle speed meet preset conditions.

[0105] The dilution submodule is used to determine a second operating state corresponding to a second oil dilution rate from the dilution rate library based on the first oil dilution rate; the second oil dilution rate is less than the first oil dilution rate.

[0106] Optionally, the first operating state includes engine coolant temperature;

[0107] The second operating status determination module includes:

[0108] The gasoline evaporation rate determination submodule is used to determine the first gasoline evaporation rate corresponding to the first operating state from a preset evaporation rate library if the engine coolant temperature is greater than a first threshold when the engine oil dilution rate and vehicle speed meet preset conditions.

[0109] An evaporation submodule is used to determine a second operating state corresponding to a second gasoline evaporation rate from the evaporation rate library based on the first gasoline evaporation rate; the second gasoline evaporation rate is greater than the first gasoline evaporation rate.

[0110] Optionally, the first operating state includes a first torque and a first speed, and the second operating state includes a second torque and a second speed;

[0111] The second operating status determination module includes:

[0112] The torque and speed determination submodule is used to determine a second torque and a second speed from a preset dilution rate library or evaporation rate library based on the first torque and the first speed, provided that the oil dilution rate and vehicle speed meet preset conditions; the oil dilution rate corresponding to the second torque and the second speed is less than the oil dilution rate corresponding to the first torque and the first speed, or the gasoline evaporation rate corresponding to the second torque and the second speed is greater than the gasoline evaporation rate corresponding to the first torque and the first speed.

[0113] Optionally, the preset conditions include at least one of the following:

[0114] The oil dilution rate is greater than or equal to the second threshold.

[0115] The vehicle speed is greater than or equal to the third threshold.

[0116] Optionally, the data acquisition module includes:

[0117] The vehicle operating condition acquisition submodule is used to acquire the vehicle's operating condition and the corresponding operating requirements for each operating condition.

[0118] The third operating state determination submodule is used to determine a third operating state from the second operating state based on a preset operating condition priority and the operating requirements of the operating condition; the third operating state meets the operating requirements of the operating condition.

[0119] An engine control submodule is used to adjust the engine's operating state according to the third operating state.

[0120] Optionally, the data acquisition module includes:

[0121] The first information receiving submodule is used to receive first information sent by the engine controller of the vehicle, the first information including the vehicle speed and the first operating state of the vehicle's engine.

[0122] An oil dilution rate calculation module is used to calculate the oil dilution rate of the vehicle based on the first operating state.

[0123] A third aspect of this application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned method for controlling the oil dilution rate.

[0124] A fourth aspect of this application provides a vehicle, including as follows: Figure 4 The aforementioned oil dilution rate control device is used to implement the above-described oil dilution rate control method.

[0125] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0126] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0127] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0128] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0129] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0130] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0131] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0132] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0133] The above provides a detailed description of the method, apparatus, storage medium, and vehicle for controlling the oil dilution rate provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for controlling the dilution rate of engine oil, characterized in that, The method includes: The vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine are obtained. When the oil dilution rate and vehicle speed meet preset conditions, a second operating state is determined from a preset dilution rate library or evaporation rate library based on the first operating state; the oil dilution rate corresponding to the second operating state is less than the oil dilution rate corresponding to the first operating state, or the gasoline evaporation rate corresponding to the second operating state is greater than the gasoline evaporation rate corresponding to the first operating state; the dilution rate library is used to record the oil dilution rate corresponding to different operating states of the engine; the evaporation rate library is used to record the gasoline evaporation rate corresponding to different operating states of the engine. The engine's operating state is adjusted according to the second operating state; The preset conditions include at least one of the following: The oil dilution rate is greater than or equal to the second threshold. The vehicle speed is greater than or equal to the third threshold; the third threshold indicates that the vehicle speed meets the condition of complete gasoline combustion.

2. The method according to claim 1, characterized in that, The first operating state includes engine coolant temperature. The step of determining a second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, when the oil dilution rate and vehicle speed meet preset conditions, includes: If the engine coolant temperature is less than or equal to a first threshold when the oil dilution rate and vehicle speed meet preset conditions, then the first oil dilution rate corresponding to the first operating state is determined from the preset dilution rate library. The second operating state corresponding to the second oil dilution rate is determined from the dilution rate library based on the first oil dilution rate; the second oil dilution rate is less than the first oil dilution rate.

3. The method according to claim 1, characterized in that, The first operating state includes engine coolant temperature. The step of determining a second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, when the oil dilution rate and vehicle speed meet preset conditions, includes: If the engine coolant temperature is greater than a first threshold when the oil dilution rate and vehicle speed meet the preset conditions, the first gasoline evaporation rate corresponding to the first operating state is determined from the preset evaporation rate library. Based on the first gasoline evaporation rate, a second operating state corresponding to the second gasoline evaporation rate is determined from the evaporation rate database; the second gasoline evaporation rate is greater than the first gasoline evaporation rate.

4. The method according to claim 1, characterized in that, The first operating state includes a first torque and a first speed; the second operating state includes a second torque and a second speed. When the oil dilution rate and vehicle speed meet preset conditions, determining the second operating state from a preset dilution rate library or evaporation rate library based on the first operating state includes: When the oil dilution rate and vehicle speed meet preset conditions, a second torque and a second speed are determined from a preset dilution rate library or evaporation rate library based on the first torque and the first speed; the oil dilution rate corresponding to the second torque and the second speed is less than the oil dilution rate corresponding to the first torque and the first speed, or the gasoline evaporation rate corresponding to the second torque and the second speed is greater than the gasoline evaporation rate corresponding to the first torque and the first speed.

5. The method according to claim 1, characterized in that, The step of adjusting the engine's operating state according to the second operating state includes: Obtain the operating conditions of the vehicle and the corresponding operating requirements for each operating condition; A third operating state is determined from the second operating state based on a preset operating condition priority and the operating requirements of the operating condition; the third operating state meets the operating requirements of the operating condition. The engine's operating state is adjusted according to the third operating state.

6. The method according to claim 1, characterized in that, The acquisition of the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine includes: The system receives first information sent by the engine controller of the vehicle, the first information including the vehicle speed and the first operating state of the vehicle's engine. The oil dilution rate of the vehicle is calculated based on the first operating state.

7. A device for controlling the oil dilution rate, characterized in that, The device includes: The data acquisition module is used to acquire the vehicle speed, oil dilution rate, and the first operating state of the vehicle's engine; The second operating state determination module is used to determine a second operating state from a preset dilution rate library or evaporation rate library based on the first operating state, provided that the oil dilution rate and vehicle speed meet preset conditions. The oil dilution rate corresponding to the second operating state is less than the oil dilution rate corresponding to the first operating state, or the gasoline evaporation rate corresponding to the second operating state is greater than the gasoline evaporation rate corresponding to the first operating state. The dilution rate library is used to record the oil dilution rates corresponding to different operating states of the engine; the evaporation rate library is used to record the gasoline evaporation rates corresponding to different operating states of the engine. An engine control module is used to adjust the operating state of the engine according to the second operating state; The preset conditions include at least one of the following: The oil dilution rate is greater than or equal to the second threshold. The vehicle speed is greater than or equal to the third threshold; the third threshold indicates that the vehicle speed meets the condition of complete gasoline combustion.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the oil dilution rate control method as described in any one of claims 1-6.

9. A vehicle, characterized in that, The device includes the oil dilution rate control device as described in claim 7, to implement the oil dilution rate control method as described in any one of claims 1-6.

Images