CN116717342A - Engine oil dewatering method and device for hybrid electric vehicle and electronic equipment - Google Patents
Engine oil dewatering method and device for hybrid electric vehicle and electronic equipment Download PDFInfo
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- CN116717342A CN116717342A CN202310679481.2A CN202310679481A CN116717342A CN 116717342 A CN116717342 A CN 116717342A CN 202310679481 A CN202310679481 A CN 202310679481A CN 116717342 A CN116717342 A CN 116717342A
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- 239000010705 motor oil Substances 0.000 title claims abstract description 178
- 238000000034 method Methods 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 265
- 230000008859 change Effects 0.000 claims abstract description 54
- 238000009833 condensation Methods 0.000 claims abstract description 31
- 230000005494 condensation Effects 0.000 claims abstract description 31
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 40
- 238000012937 correction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The application provides an engine oil dewatering method and device for a hybrid electric vehicle and electronic equipment, wherein the method comprises the following steps: monitoring a change value of the water content of the engine oil in a current unit time period; if the change value is greater than 0, correcting the water content of the engine oil at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition to obtain the water content of the engine oil at the ending moment of the current unit time period; if the change value is smaller than 0, correcting the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition to obtain the engine oil water content at the ending moment of the current unit time period; detecting whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period; if the water content of the engine oil exceeds the standard, the engine speed is increased to remove the water from the engine oil. The application can remove water from engine oil more accurately.
Description
Technical Field
The application relates to the field of new energy, in particular to an engine oil dewatering method and device for a hybrid electric vehicle and electronic equipment.
Background
When the hybrid electric vehicle is in a low-temperature environment or on a road requiring low-speed running, the engine is started for a plurality of times and runs for a short time, and the engine is stopped when the temperature of engine oil is not sufficiently increased. This operating condition causes combustion exhaust gas in the cylinder to enter the crankcase and then condense in the crankcase, thereby causing an increase in the water content in the engine oil, which is liable to cause emulsification of the engine oil, resulting in deterioration of the engine oil and deterioration of the lubricating ability. Therefore, the method has important significance in removing water from the engine oil of the hybrid electric vehicle. In the related art, the calculated water content of the engine oil is not accurate enough, so that the water removal treatment of the engine oil is not accurate enough.
Disclosure of Invention
The application aims to provide an engine oil dewatering method, an engine oil dewatering device and electronic equipment for a hybrid electric vehicle, which are used for accurately dewatering engine oil by calculating the water content of the engine oil more accurately.
According to an aspect of an embodiment of the present application, there is disclosed an oil water removal method for a hybrid vehicle, the method including:
monitoring a change value of the water content of the engine oil in a current unit time period;
if the change value is greater than 0, correcting the water content of the engine oil at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition to obtain the water content of the engine oil at the ending moment of the current unit time period;
if the change value is smaller than 0, correcting the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition to obtain the engine oil water content at the ending moment of the current unit time period;
detecting whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period;
if the water content of the engine oil exceeds the standard, the engine speed is increased to remove the water from the engine oil.
According to an aspect of an embodiment of the present application, there is disclosed an oil water removal device for a hybrid vehicle, the device including:
the change value monitoring module is configured to monitor a change value of the water content of the engine oil in a current unit period;
the first correction module is configured to correct the engine oil water content at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition if the change value is larger than 0, so as to obtain the engine oil water content at the ending moment of the current unit time period;
the second correction module is configured to correct the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition if the change value is smaller than 0, so as to obtain the engine oil water content at the ending moment of the current unit time period;
the exceeding detection module is configured to detect whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period;
and the water removal module is configured to increase the engine speed to remove water from the engine oil if the water content of the engine oil exceeds the standard.
In an exemplary embodiment of the application, the apparatus is configured to:
acquiring the engine rotating speed and the engine water temperature in the current unit time period;
if the variation value is greater than 0, inquiring a pre-calibrated condensation coefficient table by adopting the engine rotating speed and the engine water temperature to obtain the water vapor condensation coefficient;
and if the variation value is smaller than 0, inquiring a pre-calibrated evaporation coefficient table by adopting the engine rotating speed and the engine water temperature to obtain the water vapor evaporation coefficient.
In an exemplary embodiment of the present application, the out-of-standard detection module is configured to:
if the water content of the engine oil at the end time of the current unit time period is larger than a first threshold value, confirming that the water content of the engine oil exceeds the standard;
and if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value, confirming that the water content of the engine oil is not out of standard.
In an exemplary embodiment of the application, the apparatus is configured to:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value and larger than the second threshold value, in a mixed mode, the engine speed is increased, and an engine priority strategy is adopted to drive the vehicle; wherein the second threshold is less than the first threshold.
In an exemplary embodiment of the application, the apparatus is configured to:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a third threshold value, controlling the engine to continue to run in a primary mode; wherein the third threshold is less than the second threshold.
In an exemplary embodiment of the application, if the oil water content exceeds the standard, the device is configured to:
and generating prompt information to remind a user to keep the engine running, and stopping generating the prompt information after detecting that the water content of the engine oil at the end time of the corresponding unit time period is smaller than or equal to the third threshold value.
In an exemplary embodiment of the application, the apparatus is configured to:
and displaying the prompt information through a vehicle instrument.
According to an aspect of an embodiment of the present application, an electronic device is disclosed, including: one or more processors; and storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the methods provided in the various alternative implementations described above.
According to an aspect of embodiments of the present application, a computer program medium having computer readable instructions stored thereon, which when executed by a processor of a computer, cause the computer to perform the methods provided in the various alternative implementations described above is disclosed.
According to an aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the methods provided in the various alternative implementations described above.
In the embodiment of the application, the change value of the water content of the engine oil in the current unit time period is monitored; if the change value is greater than 0, correcting the water content of the engine oil at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition to obtain the water content of the engine oil at the ending moment of the current unit time period; if the change value is smaller than 0, correcting the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition to obtain the engine oil water content at the ending moment of the current unit time period; detecting whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period; if the water content of the engine oil exceeds the standard, the engine speed is increased to remove the water from the engine oil. By the method, the calculated oil water content at the end time of the current unit time period can reflect the overall water content of the environment where the oil is located more comprehensively, so that the accuracy of the calculated oil water content is improved, and the oil can be dewatered more accurately.
Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a flowchart of an oil removal method for a hybrid vehicle according to an embodiment of the present application.
Fig. 2 shows a detailed flowchart of an oil removal method for a hybrid vehicle according to an embodiment of the present application.
Fig. 3 shows a block diagram of an oil water removal device for a hybrid vehicle according to an embodiment of the present application.
Fig. 4 shows a hardware diagram of an electronic device according to an embodiment of the application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the application. However, those skilled in the art will recognize that the aspects of the application may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The application provides an engine oil dewatering method for a hybrid electric vehicle, which is used for accurately dewatering engine oil by calculating the water content of the engine oil more accurately. Hybrid vehicles to which the present application is applicable include HEVs (Hybrid Electric Vehicle, hybrid electric vehicles) and PHEVs (Plug-in Hybrid Electric Vehicle, plug-in hybrid electric vehicles).
Fig. 1 shows a flow chart of an engine oil water removal method for a hybrid vehicle.
Referring to fig. 1, the method provided by the application comprises the following steps:
step S110, monitoring a change value of the water content of the engine oil in a current unit period;
step S120, if the change value is larger than 0, the water content of the engine oil at the starting moment of the current unit time period is corrected based on the change value and the water vapor condensation coefficient of the engine under the current working condition, and the water content of the engine oil at the ending moment of the current unit time period is obtained;
step S130, if the change value is smaller than 0, the water content of the engine oil at the starting moment of the current unit time period is corrected based on the change value and the water vapor evaporation coefficient of the engine under the current working condition, and the water content of the engine oil at the ending moment of the current unit time period is obtained;
step S140, detecting whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period;
and step S150, if the water content of the engine oil exceeds the standard, the engine speed is increased so as to remove the water from the engine oil.
In the embodiment of the application, the time period of the running of the vehicle is divided into unit time periods with uniform duration according to the preset time step. For example: and if the preset time step is 2min, dividing the running time period of the vehicle into unit time periods with the unified duration of 2 mind.
And monitoring the change value of the water content of the engine oil in the current unit time period for the current unit time period of the current moment. The water content of an engine oil, generally described as the fraction of water molecules in the engine oil that have dissolved in the engine oil.
Specifically, an engine oil water content calculation model can be established in a physical modeling mode, and then a change value of the engine oil water content in the current unit time period is monitored by adopting the engine oil water content calculation model. An oil water content sensor may be provided, by which a change value of the oil water content in the current unit period is monitored.
After the change value of the oil water content in the current unit period is obtained, the embodiment of the application does not directly superimpose the change value with the oil water content at the starting time of the current unit period (i.e. the ending time of the last unit period), and then determines the superimposed result as the oil water content at the ending time of the current unit period. The reason is that, although the water content of the engine oil describes the ratio of water molecules dissolved in the engine oil, the water content of the engine oil is also practically affected by water molecules in the air inside the crankcase in consideration of the overall environment of the crankcase in which the engine oil is located.
Therefore, in order to make the calculated oil water content more fully reflect the overall water content of the crankcase, after obtaining a variation value of the oil water content within the current unit period, the embodiment of the present application confirms whether the variation value is greater than 0.
If the change value is larger than 0, the water content of the engine oil is increased in the current unit time period, and the water molecules in the crankcase are in a condensation state as a whole. Therefore, under the condition, the water vapor condensation coefficient of the engine under the current working condition is obtained, and then the change value and the water vapor condensation coefficient are combined, so that the water content of the engine oil at the starting moment of the current unit time period is corrected, and the obtained water content of the engine oil at the ending moment of the current unit time period can more comprehensively reflect the overall water content of the crankcase which is in an overall condensation state.
If the variation value is smaller than 0, the water content of the engine oil is reduced in the current unit time period, and the water molecules in the crankcase are in an overall evaporation state. Therefore, under the condition, the water vapor evaporation coefficient of the engine under the current working condition is obtained, and then the change value and the water vapor evaporation coefficient are combined, so that the oil water content at the starting moment of the current unit time period is corrected, and the obtained oil water content at the ending moment of the current unit time period can more comprehensively reflect the integral water content of the crankcase which is in an integral evaporation state.
After the water content of the engine oil at the end time of the current unit time period is obtained, the engine oil water content can be compared with a preset threshold value, and whether the water content of the engine oil exceeds the standard can be judged.
If the water content of the engine oil exceeds the standard, the engine speed is increased so as to accelerate the volatilization of water molecules dissolved in the engine oil and realize the effect of removing water from the engine oil.
In an embodiment, the method provided by the application further includes:
acquiring the engine rotating speed and the engine water temperature in the current unit time period;
if the variation value is greater than 0, inquiring a condensation coefficient table calibrated in advance by adopting the engine speed and the engine water temperature to obtain a water vapor condensation coefficient;
and if the variation value is smaller than 0, inquiring a pre-calibrated evaporation coefficient table by adopting the engine speed and the engine water temperature to obtain the water vapor evaporation coefficient.
In this embodiment, the current engine condition associated with the water vapor condensation coefficient/water vapor evaporation coefficient refers to the engine speed and the engine water temperature.
In particular, the rate of moisture condensation/rate of moisture evaporation, taking into account the overall environment of the crankcase, is primarily dependent on the engine speed and engine water temperature. Therefore, the engine speed may be divided into a plurality of speed sections in advance, and the engine water temperature may be divided into a plurality of water temperature sections. Then measuring and calibrating the moisture condensation rate of the whole crankcase environment in each rotating speed interval and each water temperature interval to obtain a condensation coefficient table; and measuring and calibrating the water evaporation rate of the whole crankcase environment in each rotating speed interval and each water temperature interval to obtain an evaporation coefficient table.
Further, the engine speed and the engine water temperature within the current unit period are determined. If the change value of the water content of the engine oil in the current unit time period is larger than 0, the condensation coefficient table is inquired by adopting the engine speed and the engine water temperature, and the water vapor condensation coefficient under the current working condition of the engine can be obtained. If the change value of the water content of the engine oil in the current unit time period is smaller than 0, the condensation coefficient table is inquired by adopting the engine speed and the engine water temperature, and the water vapor condensation coefficient under the current working condition of the engine can be obtained.
In one embodiment, detecting whether the oil water content exceeds a standard based on the oil water content at the end time of the current unit period includes:
if the water content of the engine oil at the end time of the current unit time period is larger than a first threshold value, confirming that the water content of the engine oil exceeds the standard;
and if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value, confirming that the water content of the engine oil is not out of standard.
In this embodiment, the first threshold W1 is calibrated in advance for whether the water content of the engine oil exceeds the standard. After the water content of the engine oil at the end time of the current unit period is obtained, the engine oil is compared with a first threshold W1. If the water content of the engine oil exceeds the first threshold value W1, the water content of the engine oil is confirmed to be out of standard. Otherwise, if the water content of the engine oil is smaller than or equal to the first threshold W1, the water content of the engine oil is confirmed not to exceed the standard.
Note that, when the threshold value is used for the classification determination, the attribution of the boundary condition "equal to the threshold value" is adaptively selectable. Specifically, in another embodiment, if the water content of the engine oil at the end time of the current unit period is greater than or equal to the first threshold W1, it is determined that the water content of the engine oil exceeds the standard; and if the water content of the engine oil at the end time of the current unit time period is smaller than the first threshold W1, confirming that the water content of the engine oil is not out of standard.
In an embodiment, the method provided by the application further includes:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a first threshold value and larger than a second threshold value, in a mixed mode, the engine speed is increased, and an engine priority strategy is adopted to drive the vehicle; wherein the second threshold is less than the first threshold.
In the present embodiment, a second threshold value W2 is provided in addition to a first threshold value W1 for judging whether or not the water content of the engine oil exceeds the standard. The second threshold W2 is smaller than the first threshold W1.
Specifically, for the oil water content at the end time of the current unit period, after detecting that it is less than or equal to the first threshold value W1, it is further detected whether it is greater than the second threshold value W2. If it is also greater than the second threshold value W2, it is indicated that the oil water content is already in a state closer to exceeding the standard although it has not exceeded the standard. Therefore, there is a need to perform the water removal treatment, but the forced water removal is not required.
Thus, in this case, the operation mode of the engine is monitored. There are generally three modes of engine operation: a pure fuel driving mode in which only the engine provides driving force; a hybrid mode in which the engine and the battery together provide driving force; and a pure electric mode in which the driving force is provided only by the battery.
If the engine is in a pure fuel drive mode, the engine will normally continue to maintain a high rotational speed, in which case a certain degree of water removal of the engine oil can already be achieved without a special increase in the engine rotational speed. Thus, if the engine is in a pure fuel drive mode, no additional control is required.
If the engine is in the electric-only drive mode, the engine is not rotating. In this case, if the engine is turned on, a relatively prominent noise will be caused, which adversely affects the user experience. Since water removal is not mandatory in this case, the engine may not be turned on, and no additional control is required.
If the engine is in the hybrid mode, the engine speed is low most of the time, and in this state, in order to improve the dewatering force for the engine oil, the engine speed is increased, and the vehicle is driven by adopting an engine priority strategy. When the vehicle is driven using the engine priority strategy, the driving force is mainly provided by the engine. Since the engine itself is started in the hybrid mode, the noise problem is not excessively prominent even if the rotation speed is increased, and thus in this way, the water removal force for the engine oil is enhanced and the generation of additional noise is not remarkably caused.
In an embodiment, the method provided by the application further includes:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a third threshold value, controlling the engine to continue to operate in a primary mode; wherein the third threshold is less than the second threshold.
In this embodiment, the first threshold value W1 and the second threshold value W2 are calibrated in advance, and the third threshold value W3 is calibrated in advance. The third threshold W3 is smaller than the second threshold W2.
In general, the oil water content is between the second threshold value W2 and the third threshold value W3. If the water content of the engine oil at the end time of the current unit period is smaller than the second threshold value W2 and smaller than the third threshold value W3, the water content of the engine oil is in an ideal state, so that the engine is controlled to continue to operate in a primary mode under the condition, and no additional control is needed.
In one embodiment, if the water content of the engine oil exceeds the standard, the method provided by the application further comprises the following steps:
and generating prompt information to remind a user to keep the engine running, and stopping generating the prompt information after detecting that the water content of the engine oil at the end time of the corresponding unit time period is smaller than or equal to a third threshold value.
In this embodiment, when the water content of the engine oil exceeds the standard, the water removal effect in a short time is not ideal enough, so that in order to ensure the water removal effect, it is necessary to ensure that the engine is continuously running, and the engine is not interrupted due to the stop of the engine. If the water content of the engine oil exceeds the standard, a prompt message is generated to remind a user to keep the engine running so as to continuously remove the water from the engine oil; and stopping generating the prompt information until the water content of the engine oil at the end time of the corresponding unit time period is detected to be less than or equal to a third threshold value W3 along with the water removal treatment.
The generated prompt information may be text information, icon information or voice information.
In one embodiment, generating the hint information includes:
and displaying prompt information through the vehicle instrument.
In the embodiment, the generated prompt information is displayed on the vehicle instrument (for example, an icon representing that the water content of engine oil exceeds the standard is lightened on the vehicle instrument), so that a user can receive the prompt information in time and conveniently in the process of using the vehicle.
Fig. 2 shows a detailed flowchart of an oil removal method for a hybrid vehicle in an embodiment of the present application.
Referring to FIG. 2, in one embodiment, an engine water cut calculation model is used to monitor the change in oil water cut per unit period.
And obtaining a variation value dwt of the water content of the engine oil in the current unit period, and confirming whether the variation value dwt is larger than 0.
If dwt is greater than 0, which indicates that the water molecules in the crankcase are in a condensation state as a whole, the formula w=w0+dwt×k1 is adopted to calculate the water content W of the engine oil at the end time of the current unit period. Wherein W0 represents the water content of engine oil at the starting moment of the current unit period; k1 is the water vapor condensation coefficient of the engine under the current working condition.
If dwt is smaller than 0 (in this embodiment, the case where dwt is equal to 0 is classified as the same case where dwt is smaller than 0), which means that the water molecules in the crankcase as a whole tend to be evaporated, the water content W of the engine oil at the end time of the current unit period is calculated using the formula w=w0+dwt×k2. Wherein k2 is the water vapor condensation coefficient of the engine under the current working condition.
The calculated oil water content W is then compared with a first threshold value W1.
If the calculated water content W of the engine oil is larger than a first threshold W1, the water content of the engine oil exceeds the standard, the rotating speed of the engine is increased so as to accelerate volatilization of water molecules dissolved in the engine oil and realize the effect of removing water from the engine oil; generating prompt information to remind a user to keep the engine running so as to continuously remove water from the engine oil; and stopping generating the prompt information until the water content W of the engine oil at the end time of the corresponding unit time period is detected to be smaller than or equal to a third threshold W3 along with the water removal treatment.
If the calculated water content W of the engine oil is smaller than or equal to the first threshold W1, the water content of the engine oil is not out of standard, and the engine oil is further compared with the second threshold W2.
If the calculated water content W of the engine oil is smaller than or equal to a first threshold W1 and larger than a second threshold W2, prompt information is not required to be generated, the engine speed is increased only in a mixed mode, and an engine priority strategy is adopted to drive the vehicle.
If the calculated water content W of the engine oil is smaller than the second threshold W2 and larger than the third threshold W3, which indicates that the water content of the engine oil is in a normal state, the engine can be controlled to continue to operate in the original mode.
And if the calculated water content W of the engine oil is smaller than or equal to a third threshold W3, and the water content of the engine oil is in an ideal state, controlling the engine to continue to operate in a primary mode.
Wherein the first threshold W1 is greater than the second threshold W2, and the second threshold W2 is greater than the third threshold W3.
Fig. 3 shows a block diagram of an oil water removal device for a hybrid vehicle according to an embodiment of the present application, the device including:
a change value monitoring module 210 configured to monitor a change value of the oil water content within a current unit period;
the first correction module 220 is configured to correct the oil water content at the starting time of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition if the change value is greater than 0, so as to obtain the oil water content at the ending time of the current unit time period;
the second correction module 230 is configured to correct the oil water content at the starting time of the current unit time period based on the change value and the steam evaporation coefficient under the current working condition of the engine if the change value is less than 0, so as to obtain the oil water content at the ending time of the current unit time period;
an out-of-standard detection module 240 configured to detect whether the oil water content is out of standard based on the oil water content at the end time of the current unit period;
the water removal module 250 is configured to increase the engine speed to remove water from the engine oil if the water content of the engine oil exceeds a standard.
In an exemplary embodiment of the application, the apparatus is configured to:
acquiring the engine rotating speed and the engine water temperature in the current unit time period;
if the variation value is greater than 0, inquiring a condensation coefficient table calibrated in advance by adopting the engine speed and the engine water temperature to obtain a water vapor condensation coefficient;
and if the variation value is smaller than 0, inquiring a pre-calibrated evaporation coefficient table by adopting the engine speed and the engine water temperature to obtain the water vapor evaporation coefficient.
In an exemplary embodiment of the present application, the out-of-limit detection module 240 is configured to:
if the water content of the engine oil at the end time of the current unit time period is larger than a first threshold value, confirming that the water content of the engine oil exceeds the standard;
and if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value, confirming that the water content of the engine oil is not out of standard.
In an exemplary embodiment of the application, the apparatus is configured to:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a first threshold value and larger than a second threshold value, in a mixed mode, the engine speed is increased, and an engine priority strategy is adopted to drive the vehicle; wherein the second threshold is less than the first threshold.
In an exemplary embodiment of the application, the apparatus is configured to:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a third threshold value, controlling the engine to continue to operate in a primary mode; wherein the third threshold is less than the second threshold.
In an exemplary embodiment of the application, if the oil water content exceeds the standard, the device is configured to:
and generating prompt information to remind a user to keep the engine running, and stopping generating the prompt information after detecting that the water content of the engine oil at the end time of the corresponding unit time period is smaller than or equal to a third threshold value.
In an exemplary embodiment of the application, the apparatus is configured to:
and displaying prompt information through the vehicle instrument.
An electronic device 30 according to an embodiment of the present application is described below with reference to fig. 4. The electronic device 30 shown in fig. 4 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 4, the electronic device 30 is in the form of a general purpose computing device. Components of electronic device 30 may include, but are not limited to: the at least one processing unit 310, the at least one memory unit 320, and a bus 330 connecting the various system components, including the memory unit 320 and the processing unit 310.
Wherein the storage unit stores program code that is executable by the processing unit 310 such that the processing unit 310 performs the steps according to various exemplary embodiments of the present application described in the description of the exemplary methods described above in this specification. For example, the processing unit 310 may perform the various steps as shown in fig. 1.
Storage unit 320 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 3201 and/or cache memory 3202, and may further include Read Only Memory (ROM) 3203.
The storage unit 320 may also include a program/utility 3204 having a set (at least one) of program modules 3205, such program modules 3205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 330 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 30 may also communicate with one or more external devices 400 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 30, and/or any device (e.g., router, modem, etc.) that enables the electronic device 30 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 350. An input/output (I/O) interface 350 is connected to the display unit 340. Also, electronic device 30 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 360. As shown, the network adapter 360 communicates with other modules of the electronic device 30 over the bus 330. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 30, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present application.
In an exemplary embodiment of the application, there is also provided a computer-readable storage medium having stored thereon computer-readable instructions, which, when executed by a processor of a computer, cause the computer to perform the method described in the method embodiments section above.
According to an embodiment of the present application, there is also provided a program product for implementing the method in the above method embodiment, which may employ a portable compact disc read only memory (CD-ROM) and comprise program code and may be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods of the present application are depicted in the accompanying drawings in a particular order, this is not required to either imply that the steps must be performed in that particular order, or that all of the illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
Claims (10)
1. An oil water removal method for a hybrid vehicle, the method comprising:
monitoring a change value of the water content of the engine oil in a current unit time period;
if the change value is greater than 0, correcting the water content of the engine oil at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition to obtain the water content of the engine oil at the ending moment of the current unit time period;
if the change value is smaller than 0, correcting the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition to obtain the engine oil water content at the ending moment of the current unit time period;
detecting whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period;
if the water content of the engine oil exceeds the standard, the engine speed is increased to remove the water from the engine oil.
2. The method according to claim 1, wherein the method further comprises:
acquiring the engine rotating speed and the engine water temperature in the current unit time period;
if the variation value is greater than 0, inquiring a pre-calibrated condensation coefficient table by adopting the engine rotating speed and the engine water temperature to obtain the water vapor condensation coefficient;
and if the variation value is smaller than 0, inquiring a pre-calibrated evaporation coefficient table by adopting the engine rotating speed and the engine water temperature to obtain the water vapor evaporation coefficient.
3. The method of claim 1, wherein detecting whether the oil water content exceeds a standard based on the oil water content at the end time of the current unit time period comprises:
if the water content of the engine oil at the end time of the current unit time period is larger than a first threshold value, confirming that the water content of the engine oil exceeds the standard;
and if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value, confirming that the water content of the engine oil is not out of standard.
4. A method according to claim 3, characterized in that the method further comprises:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to the first threshold value and larger than the second threshold value, in a mixed mode, the engine speed is increased, and an engine priority strategy is adopted to drive the vehicle; wherein the second threshold is less than the first threshold.
5. The method according to claim 4, wherein the method further comprises:
if the water content of the engine oil at the end time of the current unit time period is smaller than or equal to a third threshold value, controlling the engine to continue to run in a primary mode; wherein the third threshold is less than the second threshold.
6. The method of claim 5, wherein if the water content of the engine oil exceeds a standard, the method further comprises:
and generating prompt information to remind a user to keep the engine running, and stopping generating the prompt information after detecting that the water content of the engine oil at the end time of the corresponding unit time period is smaller than or equal to the third threshold value.
7. The method of claim 6, wherein generating the hint information comprises:
and displaying the prompt information through a vehicle instrument.
8. An oil water removal device for a hybrid vehicle, the device comprising:
the change value monitoring module is configured to monitor a change value of the water content of the engine oil in a current unit period;
the first correction module is configured to correct the engine oil water content at the starting moment of the current unit time period based on the change value and the water vapor condensation coefficient of the engine under the current working condition if the change value is larger than 0, so as to obtain the engine oil water content at the ending moment of the current unit time period;
the second correction module is configured to correct the engine oil water content at the starting moment of the current unit time period based on the change value and the steam evaporation coefficient of the engine under the current working condition if the change value is smaller than 0, so as to obtain the engine oil water content at the ending moment of the current unit time period;
the exceeding detection module is configured to detect whether the water content of the engine oil exceeds a standard or not based on the water content of the engine oil at the end time of the current unit time period;
and the water removal module is configured to increase the engine speed to remove water from the engine oil if the water content of the engine oil exceeds the standard.
9. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the method of any of claims 1-7.
10. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310679481.2A CN116717342A (en) | 2023-06-08 | 2023-06-08 | Engine oil dewatering method and device for hybrid electric vehicle and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310679481.2A CN116717342A (en) | 2023-06-08 | 2023-06-08 | Engine oil dewatering method and device for hybrid electric vehicle and electronic equipment |
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| Publication Number | Publication Date |
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| CN116717342A true CN116717342A (en) | 2023-09-08 |
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| CN202310679481.2A Pending CN116717342A (en) | 2023-06-08 | 2023-06-08 | Engine oil dewatering method and device for hybrid electric vehicle and electronic equipment |
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| Country | Link |
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| CN (1) | CN116717342A (en) |
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- 2023-06-08 CN CN202310679481.2A patent/CN116717342A/en active Pending
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