Control method and device of engine, vehicle and storage medium

Abstract

The application discloses an engine control method and device, a vehicle and a storage medium. The method comprises the following steps: acquiring an ambient temperature and an operating parameter of the vehicle; when the ambient temperature is less than a preset ambient temperature, determining whether engine oil is diluted according to the operating parameter of the vehicle; and when it is determined that the engine oil is diluted, controlling the operating state of the engine. The engine start-stop working condition can be optimized to avoid frequent engine cold start, thereby reducing the risk of engine damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine, in particular to a control method and device of engine, vehicle and storage medium. BACKGROUND

[0002] When the vehicle is running in short distance, for the traditional vehicle, the engine has enough time to heat up when starting; for the PHEV (Plug-in Hybrid Electric Vehicle) vehicle, the engine can be long-term non-starting due to the large capacity of the battery pack, and the short distance driving condition basically does not exist; for the HEV (Hybrid Electric Vehicle) vehicle, the capacity of the power battery is small, when the vehicle is running in short distance, the engine needs to be frequently intervened due to the capacity of the power battery, and the engine works in short distance event for a long time, especially in the winter period in cold regions, which causes the gasoline mixed in the engine oil to be difficult to volatilize and the engine oil dilution phenomenon occurs, and the vehicle is in the state of engine oil dilution for a long time, which affects the lubrication performance of the engine, and even causes damage to the engine. SUMMARY

[0003] The present application aims at at least solving one of the problems in the prior art. To this end, the present application aims at providing a control method and device of engine, vehicle and storage medium.

[0004] The present application provides a control method of engine, comprising: acquiring an environmental temperature and a running parameter of a vehicle; when the environmental temperature is less than a preset environmental temperature, judging whether engine oil is diluted according to the running parameter of the vehicle; and when it is judged that the engine oil is diluted, controlling the running state of the engine.

[0005] In addition, the control method of engine according to the embodiment of the present application can also have the following additional technical features:

[0006] Further, the running parameter of the vehicle includes a driving distance of each running of the vehicle, a first total number of driving of the vehicle and a second total number of running of the engine, and the judging whether the engine oil is diluted according to the running parameter of the vehicle comprises: determining a first number of the driving distance being less than a preset driving distance; calculating a first ratio value of the first number and the first total number, and calculating a second ratio value of the second total number and the first total number; and judging whether the engine oil is diluted according to the first ratio value and the second ratio value.

[0007] Further, the judging whether the engine oil is diluted according to the first ratio and the second ratio comprises: when the first ratio is greater than a first preset ratio and the second ratio is greater than a second preset ratio, judging that the engine oil is diluted.

[0008] Further, the operation parameters of the vehicle comprise an operation time length of each operation of the engine and a second total number of operations of the engine, and the judging whether the engine oil is diluted according to the operation parameters of the vehicle comprises: determining a second number of times that the operation time length is less than a preset operation time length; calculating a third ratio of the second number of times and the second total number of operations; and judging whether the engine oil is diluted according to the third ratio.

[0009] Further, the judging whether the engine oil is diluted according to the third ratio comprises: when the third ratio is greater than a third preset ratio, judging that the engine oil is diluted.

[0010] Further, the controlling the operation state of the engine comprises: controlling the engine to be in a starting state for at least a preset time.

[0011] Further, after judging that the engine oil is diluted, the method further comprises: sending prompt information for reminding a user to pay attention to an engine oil level.

[0012] According to the engine control method, the environment temperature and the operation parameters of the vehicle are acquired, and when the environment temperature is less than a preset environment temperature, the operation parameters of the vehicle are used to judge whether the engine oil is diluted, and when it is judged that the engine oil is diluted, the operation state of the engine is controlled, so that the engine start-stop working condition is optimized to avoid frequent cold starting of the engine, thereby reducing the risk of engine damage. Further, after judging that the engine oil is diluted, prompt information for reminding a user to pay attention to an engine oil level is sent, so as to remind the user to check the engine oil level or remind the user to go to a shop for repair, thereby avoiding engine damage, and meanwhile, without adding an engine oil level sensor, the cost can be reduced.

[0013] In view of the above problems, the application further provides an engine control device, which comprises: an acquisition module, configured to acquire an environment temperature and operation parameters of a vehicle; a judging module, configured to judge whether engine oil is diluted according to the operation parameters of the vehicle when the environment temperature is less than a preset environment temperature; and a control module, configured to control an operation state of the engine when it is judged that the engine oil is diluted.

[0014] The control device of the engine according to the embodiment of the present application can obtain the ambient temperature and the operation parameter of the vehicle, and when the ambient temperature is less than the preset ambient temperature, determine whether the engine oil is diluted according to the operation parameter of the vehicle, and when it is determined that the engine oil is diluted, control the operation state of the engine, so that the engine is prevented from being frequently cooled by optimizing the start-stop working condition of the engine, and the risk of damage of the engine is reduced. Further, after it is determined that the engine oil is diluted, prompt information for reminding the user to pay attention to the engine oil level is sent, so that the user is reminded to check the engine oil level or go to the shop for maintenance, the engine is prevented from being damaged, and the cost can be reduced without adding the engine oil level sensor.

[0015] In view of the above problems, the present application further provides a vehicle, which comprises a processor and a memory; the memory is used for storing a computer program; and the processor is used for executing the control method of the engine according to any one of the above embodiments according to the computer program.

[0016] The vehicle according to the embodiment of the present application can obtain the ambient temperature and the operation parameter of the vehicle, and when the ambient temperature is less than the preset ambient temperature, determine whether the engine oil is diluted according to the operation parameter of the vehicle, and when it is determined that the engine oil is diluted, control the operation state of the engine, so that the engine is prevented from being frequently cooled by optimizing the start-stop working condition of the engine, and the risk of damage of the engine is reduced. Further, after it is determined that the engine oil is diluted, prompt information for reminding the user to pay attention to the engine oil level is sent, so that the user is reminded to check the engine oil level or go to the shop for maintenance, the engine is prevented from being damaged, and the cost can be reduced without adding the engine oil level sensor.

[0017] In view of the above problems, the present application further provides a computer readable storage medium, which stores a control program of an engine, and the control program of the engine is executed by a processor to implement the control method of the engine according to any one of the above embodiments.

[0018] The computer readable storage medium according to the embodiment of the present application stores a control program of an engine, and the control program of the engine is executed by a processor to obtain the ambient temperature and the operation parameter of the vehicle, and when the ambient temperature is less than the preset ambient temperature, determine whether the engine oil is diluted according to the operation parameter of the vehicle, and when it is determined that the engine oil is diluted, control the operation state of the engine, so that the engine is prevented from being frequently cooled by optimizing the start-stop working condition of the engine, and the risk of damage of the engine is reduced. Further, after it is determined that the engine oil is diluted, prompt information for reminding the user to pay attention to the engine oil level is sent, so that the user is reminded to check the engine oil level or go to the shop for maintenance, the engine is prevented from being damaged, and the cost can be reduced without adding the engine oil level sensor.

[0019] Additional aspects and advantages of the present application will be apparent from the following description, taken in conjunction with the accompanying drawings, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood by considering the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a flowchart of a control method of an engine according to an embodiment of the present application;

[0022] Figure 2 is a structural schematic diagram of a control device of an engine according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] Embodiments of the present application are described below in detail with reference to the accompanying drawings. Embodiments of the present application are described below in detail with reference to the accompanying drawings.

[0024] Reference is made below to Figures 1-2 a control method, a control device, a vehicle, and a storage medium of an engine according to embodiments of the present application.

[0025] Figure 1 is a flowchart of a control method of an engine according to an embodiment of the present application. As shown in Figure 1 , a control method of an engine includes the following steps:

[0026] Step S1: Obtain an ambient temperature and a running parameter of the vehicle.

[0027] Specifically, the running parameter of the vehicle includes a driving distance of each running of the vehicle, a first total number of driving of the vehicle, a second total number of running of the engine, and a running time length of each running of the engine.

[0028] In specific embodiments, the ambient temperature can be obtained by a temperature sensor, which can be arranged outside a vehicle body of the vehicle. The driving distance of each running of the vehicle (i.e., the driving distance of single running) can be calculated by a total distance in an odometer. For example, the current driving distance of the vehicle is the difference between the current total driving distance in the odometer and the total driving distance at the end of the last running of the vehicle. The running time length of each running of the engine can be counted by a timer. The first total number of driving of the vehicle and the second total number of running of the engine can be counted.

[0029] Step S2: When the ambient temperature is less than a preset ambient temperature, determine whether the engine oil is diluted according to the running parameter of the vehicle.

[0030] Specifically, the control of the engine in the embodiments of the present application is mainly applicable to vehicles of HEV type. When the driving distance of each operation of the vehicle is short, the power battery needs to provide power for the vehicle at the beginning because the oil saving and power assisting targets are not reached, but the power battery of the vehicle of HEV type has small capacity and cannot continuously provide power for the vehicle, so the engine needs to intervene to charge the power battery, and the engine frequently operates in the short distance working condition. When the ambient temperature is low (i.e. the ambient temperature is less than the preset ambient temperature), the engine works in the short distance working condition for a long time and cannot reach the hot engine state, which causes the gasoline mixed in the engine oil to be difficult to volatilize and the phenomenon of engine oil increase, i.e. engine oil dilution. If the vehicle is in the state of engine oil dilution for a long time, the lubrication of the engine will be affected, and even the engine will be damaged. Therefore, when the ambient temperature is less than the preset ambient temperature, the embodiments of the present application judge whether the engine oil is diluted according to the operating parameters of the vehicle to identify the event of short distance operation of the engine, so as to avoid the problem of engine oil dilution caused by frequent cold start of the engine. In specific embodiments, the preset ambient temperature can be pre-set and stored. For example, the preset ambient temperature is minus 10℃.

[0031] Step S3: controlling the operating state of the engine when judging that the engine oil is diluted.

[0032] Specifically, as described above, when the engine oil is diluted, the risk of damage to the engine is relatively large, so when judging that the engine oil is diluted, the embodiments of the present application control the operating state of the engine to avoid frequent cold start of the engine by optimizing the start-stop working condition of the engine, so as to reduce the risk of damage to the engine.

[0033] In one embodiment of the present application, the operation parameters of the vehicle include the driving mileage of each operation of the vehicle, the first total number of vehicle driving and the second total number of engine operation, and the determination of whether the engine oil is diluted according to the operation parameters of the vehicle includes: determining the first number of driving mileage less than the preset driving mileage; calculating the first ratio of the first number and the first total number, and calculating the second ratio of the second total number and the first total number; and determining whether the engine oil is diluted according to the first ratio and the second ratio. Specifically, when the first ratio is greater than the first preset ratio and the second ratio is greater than the second preset ratio, it is determined that the engine oil is diluted. Specifically, when the driving mileage of the vehicle is less than the preset driving mileage, it is considered that the driving mileage of the vehicle is short. Since the HEV vehicle is a hybrid vehicle, when the driving mileage of the vehicle is short, the vehicle operates in the pure electric driving state, at this time, the engine does not operate, and only the engine works in the short mileage working condition for a long time, and the engine oil is diluted when the engine does not reach the hot state. Therefore, when the ratio of the first number of driving mileage less than the preset driving mileage and the first total number of vehicle driving (the first number ratio) is greater, and the ratio of the second total number of engine operation and the first total number of vehicle driving (the second number ratio) is greater, it is considered that the engine oil is diluted.

[0034] In a specific embodiment, when the ambient temperature is less than the preset ambient temperature, the first number of the driving mileage of the vehicle less than the preset driving mileage is N1, the first total number of vehicle driving is N2, and the second total number of engine operation is N3 after the vehicle is operated for multiple times. When the first number ratio of the driving mileage of the vehicle less than the preset driving mileage (i.e. N1 / N2) is greater than the first preset ratio, and the second number ratio (N3 / N2) is greater than the second preset ratio, it is determined that the engine oil is diluted. In a specific embodiment, the preset driving mileage, the first preset ratio and the second preset ratio can be preset and stored. For example, the preset driving mileage is 2km, the first preset ratio is 85%, and the second preset ratio is 93%.

[0035] In one embodiment of the present application, the operation parameters of the vehicle include the operation time of each operation of the engine and the second total number of engine operation, and the determination of whether the engine oil is diluted according to the operation parameters of the vehicle includes: determining the second number of operation time less than the preset operation time; calculating the third ratio of the second number and the second total number; and determining whether the engine oil is diluted according to the third ratio. Specifically, when the third ratio is greater than the third preset ratio, it is determined that the engine oil is diluted.

[0036] Specifically, when the engine runs for a time less than the preset running time during a start-up to a shutdown process, it is considered that the engine runs in a short mileage condition. When the ambient temperature is less than the preset ambient temperature, after the engine runs for a plurality of times, the second number of times that the engine runs for a time less than the preset running time is, for example, N4, the second total number of times that the engine runs is, for example, N5, and the third number of times that the engine runs for a time less than the preset running time accounts for a larger proportion (i.e., N4 / N5), it is considered that the engine frequently runs in a short mileage condition and cannot reach a hot engine state, and is prone to engine oil dilution. Therefore, the embodiment of the present application pre-sets a third preset proportion, and compares the third ratio with the third preset proportion to determine whether the engine oil is diluted, i.e., when the third ratio is greater than the third preset proportion, it is determined that the engine oil is diluted. In specific embodiments, the preset running time and the third preset proportion can be pre-set and stored. For example, the preset running time is 2 minutes, and the third preset proportion is 93%.

[0037] In an embodiment of the present application, the running state of the engine is controlled, including: controlling the engine to be in a start-up state and to last for at least a preset time.

[0038] Specifically, when it is determined that the engine oil is diluted, it is considered that the engine is at a high risk of damage. At this time, the engine is controlled to be in a start-up state and to last for at least a preset time, so as to prohibit the engine from stopping running and to force the engine to run for at least a preset time, for example, 5 minutes, so as to make the engine reach a hot engine state and avoid the occurrence of a cold engine phenomenon, thereby reducing the risk of engine damage.

[0039] In an embodiment of the present application, after it is determined that the engine oil is diluted, the method further includes: issuing a prompt information prompting a user to pay attention to the engine oil level.

[0040] Specifically, after the engine oil is diluted, the prompt information prompting the user to pay attention to the engine oil level is issued, so as to remind the user to check the engine oil level, or to remind the user to go to a shop for repair, so as to avoid engine damage. In specific embodiments, the prompt information prompting the user to pay attention to the engine oil level can be displayed in a vehicle instrument, or can be reminded by a speaker in the vehicle, or can be pushed to a mobile terminal, such as a mobile phone, of the user. Here, no limitation is made. Since the embodiment of the present application does not need to add an engine oil level sensor, the cost can be reduced.

[0041] According to the control method of the engine, the environmental temperature and the operation parameter of the vehicle are acquired, and when the environmental temperature is less than a preset environmental temperature, whether the engine oil is diluted is determined according to the operation parameter of the vehicle, and when it is determined that the engine oil is diluted, the operation state of the engine is controlled, so that the engine is prevented from frequently being cooled down by optimizing the start-stop working condition of the engine, and the risk of damage of the engine is reduced. Further, after it is determined that the engine oil is diluted, prompt information prompting the user to pay attention to the engine oil level is sent, so as to remind the user to check the engine oil level or remind the user to go to the shop for maintenance, and the engine is prevented from being damaged, and meanwhile, the engine oil level sensor does not need to be added, and the cost can be reduced.

[0042] A further embodiment of the present application also discloses a control device of an engine, Figure 2 Fig. 1 is a structural schematic diagram of a control device of an engine according to an embodiment of the present application, as Figure 2 shown, the device 10 comprises an acquisition module 11, a determination module 12 and a control module 13. The acquisition module 11 is configured to acquire an environmental temperature and an operation parameter of a vehicle. The determination module 12 is configured to determine whether engine oil is diluted according to the operation parameter of the vehicle when the environmental temperature is less than a preset environmental temperature. The control module 13 is configured to control an operation state of the engine when it is determined that the engine oil is diluted.

[0043] In an embodiment of the present application, the operation parameter of the vehicle comprises a driving distance of each operation of the vehicle, a first total number of driving of the vehicle and a second total number of operation of the engine, and the determination module 12 determines whether the engine oil is diluted according to the operation parameter of the vehicle, comprising: determining a first number of the driving distance being less than a preset driving distance; calculating a first ratio value of the first number and the first total number, and calculating a second ratio value of the second total number and the first total number; and determining whether the engine oil is diluted according to the first ratio value and the second ratio value.

[0044] In an embodiment of the present application, the determination module 12 determines whether the engine oil is diluted according to the first ratio value and the second ratio value, comprising: when the first ratio value is greater than a first preset ratio and the second ratio value is greater than a second preset ratio, it is determined that the engine oil is diluted.

[0045] In an embodiment of the present application, the operation parameter of the vehicle comprises an operation time length of each operation of the engine and the second total number of operation of the engine, and the determination module 12 determines whether the engine oil is diluted according to the operation parameter of the vehicle, comprising: determining a second number of the operation time length being less than a preset operation time length; calculating a third ratio value of the second number and the second total number; and determining whether the engine oil is diluted according to the third ratio value.

[0046] In an embodiment of the present application, the judging module 12 judges whether the engine oil is diluted according to the third ratio, comprising: when the third ratio is greater than a third preset ratio, judging that the engine oil is diluted.

[0047] In an embodiment of the present application, the control module 13 controls the running state of the engine, comprising: controlling the engine to be in a starting state for at least a preset time.

[0048] In an embodiment of the present application, after judging that the engine oil is diluted, the control module 13 is further used for: issuing a prompt information prompting the user to pay attention to the engine oil level.

[0049] It should be noted that the engine control device 10 of the embodiment of the present application is similar to the specific implementation mode of the engine control method of the embodiment of the present application when controlling the engine, and specific reference can be made to the description in the method part. In order to reduce redundancy, it will not be repeated here.

[0050] According to the engine control device 10 of the embodiment of the present application, by acquiring the environmental temperature and the running parameters of the vehicle, and when the environmental temperature is less than a preset environmental temperature, judging whether the engine oil is diluted according to the driving mileage or the running time, and when judging that the engine oil is diluted, controlling the running state of the engine, the engine cold start can be avoided by optimizing the start-stop working condition of the engine, thereby reducing the risk of engine damage. Further, after judging that the engine oil is diluted, a prompt information prompting the user to pay attention to the engine oil level is issued to remind the user to check the engine oil level, or to remind the user to go to the shop for repair, so as to avoid the engine damage, and at the same time, without increasing the engine oil level sensor, the cost can be reduced.

[0051] A further embodiment of the present application also discloses a vehicle, comprising a processor and a memory; wherein the memory is used for storing a computer program; and the processor is used for executing the engine control method according to any one of the above embodiments according to the computer program.

[0052] It should be noted that the vehicle of the embodiment of the present application is similar to the specific implementation mode of the engine control method of the embodiment of the present application when controlling the engine, and specific reference can be made to the description in the method part. In order to reduce redundancy, it will not be repeated here.

[0053] According to the vehicle of the embodiment of the present application, by acquiring the ambient temperature and the running parameter of the vehicle, and when the ambient temperature is less than the preset ambient temperature, judging whether the engine oil is diluted according to the running parameter of the vehicle, and when judging that the engine oil is diluted, controlling the running state of the engine, the engine frequent cold start can be avoided by optimizing the start-stop working condition of the engine, so as to reduce the risk of engine damage. Further, after judging that the engine oil is diluted, prompt information reminding the user to pay attention to the engine oil level is sent, so as to remind the user to check the engine oil level, or remind the user to go to the shop for repair, avoiding the engine damage, and meanwhile, without increasing the engine oil level sensor, the cost can be reduced.

[0054] The further embodiment of the present application also discloses a computer readable storage medium, wherein a control program of an engine is stored on the computer readable storage medium, and the control program of the engine is executed by a processor to realize the control method of the engine according to any one of the above embodiments.

[0055] The computer readable storage medium according to the embodiment of the present application, wherein the control program of the engine stored on the computer readable storage medium is executed by a processor to acquire the ambient temperature and the running parameter of the vehicle, and when the ambient temperature is less than the preset ambient temperature, judge whether the engine oil is diluted according to the running parameter of the vehicle, and when judging that the engine oil is diluted, control the running state of the engine, the engine frequent cold start can be avoided by optimizing the start-stop working condition of the engine, so as to reduce the risk of engine damage. Further, after judging that the engine oil is diluted, prompt information reminding the user to pay attention to the engine oil level is sent, so as to remind the user to check the engine oil level, or remind the user to go to the shop for repair, avoiding the engine damage, and meanwhile, without increasing the engine oil level sensor, the cost can be reduced.

[0056] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0057] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A control method of an engine characterized by comprising: The method comprises: acquiring an ambient temperature and operating parameters of a vehicle, the operating parameters of the vehicle including a driving distance of each operation of the vehicle, a first total number of times of driving of the vehicle, and a second total number of times of operation of the engine; when the ambient temperature is less than a preset ambient temperature, determining whether the engine oil is diluted according to the operating parameters of the vehicle, the determining whether the engine oil is diluted according to the operating parameters of the vehicle including determining a first number of times of the driving distance being less than a preset driving distance, calculating a first ratio of the first number of times to the first total number of times, and calculating a second ratio of the second total number of times to the first total number of times, and determining whether the engine oil is diluted according to the first ratio and the second ratio; when it is determined that the engine oil is diluted, controlling an operating state of the engine.

2. The control method of an engine according to claim 1, characterized by, The determining whether the engine oil is diluted according to the first ratio and the second ratio includes: when the first ratio is greater than a first preset ratio and the second ratio is greater than a second preset ratio, it is determined that the engine oil is diluted.

3. The control method of an engine according to claim 1, characterized by, The operating parameters of the vehicle include an operating duration of each operation of the engine and the second total number of times of operation of the engine, and the determining whether the engine oil is diluted according to the operating parameters of the vehicle includes: determining a second number of times of the operating duration being less than a preset operating duration; calculating a third ratio of the second number of times to the second total number of times; determining whether the engine oil is diluted according to the third ratio.

4. The control method of an engine according to claim 3, characterized by The determining whether the engine oil is diluted according to the third ratio includes: when the third ratio is greater than a third preset ratio, it is determined that the engine oil is diluted.

5. The control method of an engine according to claim 1, characterized by The controlling the operating state of the engine includes: controlling the engine to be in a starting state for at least a preset time.

6. The control method of the engine according to claim 5, characterized by After it is determined that the engine oil is diluted, the method further includes: sending prompt information prompting a user to pay attention to an engine oil level.

7. A control device of an engine characterized by comprising: The method comprises: an acquiring module, configured to acquire an ambient temperature and operating parameters of a vehicle, the operating parameters of the vehicle including a driving distance of each operation of the vehicle, a first total number of times of driving of the vehicle, and a second total number of times of operation of the engine; a determining module, configured to, when the ambient temperature is less than a preset ambient temperature, determine whether the engine oil is diluted according to the operating parameters of the vehicle, the determining whether the engine oil is diluted according to the operating parameters of the vehicle including determining a first number of times of the driving distance being less than a preset driving distance, calculating a first ratio of the first number of times to the first total number of times, and calculating a second ratio of the second total number of times to the first total number of times, and determining whether the engine oil is diluted according to the first ratio and the second ratio; a controlling module, configured to, when it is determined that the engine oil is diluted, control an operating state of the engine.

8. A vehicle characterized by comprising: The vehicle comprises a processor and a memory; the memory is configured to store a computer program; and the processor is configured to execute the control method of the engine according to the computer program.

9. A computer-readable storage medium, characterized in that, A computer-readable storage medium stores a control program of an engine, which, when executed by a processor, implements the control method of the engine according to any one of claims 1 to 7.

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