CN114352377A - Control system and method for reducing engine oil dilution rate of engine system - Google Patents
Control system and method for reducing engine oil dilution rate of engine system Download PDFInfo
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- CN114352377A CN114352377A CN202210048593.3A CN202210048593A CN114352377A CN 114352377 A CN114352377 A CN 114352377A CN 202210048593 A CN202210048593 A CN 202210048593A CN 114352377 A CN114352377 A CN 114352377A
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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
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/001—Heating
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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
- F01M11/10—Indicating devices; Other safety devices
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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
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
Abstract
The application provides a control system and a method for reducing engine oil dilution rate of an engine system, wherein the system comprises: the intelligent heater comprises an electronic control unit and an intelligent heater arranged in an oil-gas separator in an engine system; the intelligent heater is in communication connection with the electronic control unit; the intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit; the electronic control unit is used for sending a control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of engine oil, so that diesel oil mixed in the engine oil in the oil-gas separator can volatilize, the dilution rate of the engine oil is reduced, and the problems of reduced engine oil lubricity and service life, short oil change period, high long-term use risk, reduced performance of a diesel engine and the like caused by overhigh dilution rate of the engine oil are solved.
Description
Technical Field
The invention relates to the technical field of control, in particular to a control system and a control method for reducing the dilution rate of engine oil of an engine system.
Background
Currently, active regeneration of national six DPF (particulate filter) mainly comprises: and adopting active regeneration of a seventh fuel injector and sampling in-cylinder far-back injection regeneration. The medium and heavy diesel engines mostly adopt the active regeneration of a seventh fuel injector, and the light vehicles mostly adopt the far back injection regeneration.
In the operation process of the light automobile adopting the remote post-injection regeneration technology, part of diesel oil can be attached to the cylinder wall and is mixed into the engine oil in the main oil duct through the gap between the cylinder wall and the piston, so that the dilution rate of the engine oil in the main oil duct is improved, the lubricating property of the engine oil and the service life of the engine oil are influenced, the risk of cylinder pulling is caused after long-term use, the oil change period of the engine oil is shortened, and the performance of a diesel engine is influenced.
Disclosure of Invention
Therefore, the control system and the control method for reducing the engine oil dilution rate of the engine system are provided, so that the volatilization of diesel oil mixed in the engine oil is realized by improving the temperature of the engine oil in the oil-gas separator, and the engine oil dilution rate is reduced, so that the problems of reduced engine oil lubricity and service life, short oil change period, high long-term use risk, reduced diesel engine performance and the like caused by overhigh engine oil dilution rate are solved.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the application discloses first aspect discloses a control system that reduces engine system machine oil dilution rate includes: the intelligent heater comprises an electronic control unit and an intelligent heater arranged in an oil-gas separator in the engine system; the intelligent heater is in communication connection with the electronic control unit;
the intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit;
and the electronic control unit is used for sending the control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of the engine oil.
Optionally, in the above control system for reducing the dilution rate of the engine system oil, the intelligent heater is disposed at the bottom or the top of the oil-gas separator.
Optionally, in the above control system for reducing a dilution rate of engine system oil, the intelligent heater includes: a temperature sensor and a heating resistance wire;
the temperature sensor is used for detecting the temperature of the engine oil in the oil-gas separator,
the heating resistance wire is used for heating the engine oil in the oil-gas separator.
The second aspect of the application discloses a control method for reducing the dilution rate of engine oil of an engine system, which is applied to an electronic control unit in the control system for reducing the dilution rate of engine oil disclosed by any one of the first aspect, and the method comprises the following steps:
judging whether the engine system meets an engine oil dilution starting condition or not;
if the engine system is judged to meet the engine oil dilution starting condition, acquiring the engine oil temperature in an oil-gas separator in the engine system;
judging whether the engine oil temperature is less than a preset temperature limit value or not;
and if the engine oil temperature is judged to be less than the preset temperature limit value, controlling the intelligent heater to start heating.
Optionally, in the control method for reducing the engine oil dilution rate of the engine system, determining whether the engine system meets an engine oil dilution condition includes:
judging whether the engine system enters a far post-injection regeneration mode or not;
if the engine system is judged to enter the remote post-injection regeneration mode, judging that the engine system meets an engine oil dilution condition;
and if the engine system is judged not to enter the remote post-injection regeneration mode, judging that the engine system does not meet the engine oil dilution condition.
Optionally, in the above control method for reducing the dilution rate of the engine system oil, after controlling the smart heater to start heating, the method further includes:
judging whether the engine oil temperature is greater than the preset temperature limit value in real time;
if the engine oil temperature is judged to be greater than the preset temperature limit value, controlling the intelligent heater to stop heating;
and if the engine oil temperature is judged to be less than the preset temperature limit value, controlling the intelligent heater to continuously start heating.
Optionally, in the control method for reducing the dilution rate of the engine system oil, controlling the intelligent heater to stop heating includes:
and issuing a heating power-off instruction to the intelligent heater to control the heating resistance wire in the intelligent heater to be powered off.
Optionally, in the control method for reducing the dilution rate of the engine system oil, controlling the intelligent heater to start heating includes:
and issuing a heating and electrifying command to the intelligent heater to control the heating resistance wire in the intelligent heater to be electrified.
Optionally, in the above control method for reducing the dilution rate of the engine system oil, after controlling the smart heater to start heating, the method further includes:
and returning to the step of judging whether the engine system meets the engine oil dilution starting condition, and controlling the intelligent heater to stop heating if the engine system does not meet the engine oil dilution starting condition.
Optionally, in the control method for reducing the dilution rate of the engine system oil, before or after any step, the method further includes:
monitoring whether the engine oil liquid level of the engine system is greater than a preset liquid level limit value in real time;
and if the engine oil level of the engine system is monitored to be greater than the preset liquid level limit value, sending an alarm signal.
The control system for reducing the engine oil dilution rate of the engine system based on the invention comprises: the intelligent heater comprises an electronic control unit and an intelligent heater arranged in an oil-gas separator in an engine system; the intelligent heater is in communication connection with the electronic control unit; the intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit; the electronic control unit is used for sending a control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of engine oil, so that diesel oil mixed in the engine oil in the oil-gas separator can volatilize, the dilution rate of the engine oil is reduced, and the problems of reduced engine oil lubricity and service life, short oil change period, high long-term use risk, reduced performance of a diesel engine and the like caused by overhigh dilution rate of the engine oil are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a control system for reducing a dilution rate of oil in an engine system according to an embodiment of the present disclosure;
FIG. 2 is a flowchart of a control method for reducing a dilution rate of oil in an engine system according to an embodiment of the present disclosure;
FIG. 3 is a flowchart of engine oil dilution start condition determination provided in an embodiment of the present application;
fig. 4 to fig. 6 are flowcharts illustrating three other control methods for reducing the dilution rate of the engine oil in the engine system according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application provides a control system who reduces engine system machine oil dilution rate to volatilize through improving the machine oil temperature among the oil and gas separator and mix into diesel oil in realizing the machine oil, reduce the machine oil dilution rate, in order to avoid the machine oil dilution rate too high, lead to the machine oil lubricity and life decline, change oil cycle short, long-term use risk height and diesel engine performance reduction scheduling problem.
Referring to fig. 1, the control system for reducing the dilution rate of the engine oil of the engine system mainly includes: an Electronic Control Unit (ECU) and an intelligent heater arranged in an oil-gas separator in an engine system. The intelligent heater is in communication connection with the electronic control unit, and the intelligent heater is controlled by the electronic control unit.
The intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit.
The electronic control unit is used for sending a control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of engine oil.
The engine oil temperature data comprises the temperature of the engine oil in the oil-gas separator detected by the intelligent heater.
In practical application, the intelligent heater mainly comprises: temperature sensor and heating resistor silk. The temperature sensor is mainly used for detecting the temperature of the engine oil in the oil-gas separator; the heating resistance wire is used for heating the engine oil in the oil-gas separator.
It should be noted that the intelligent heater can be arranged at the bottom of the oil-gas separator, namely below the liquid level of the oil in the oil-gas separator; the oil-gas separator can also be arranged at the top of the oil-gas separator, namely above the oil liquid level of the oil-gas separator; of course, the invention is not limited to this, and may also be determined according to the specific application environment and the user's requirement, and the location of the intelligent heater is not specifically limited in this application, and is within the protection scope of this application.
Based on the above principle, the control system for reducing the dilution rate of the engine oil in the engine system provided by the embodiment includes: the intelligent heater comprises an electronic control unit and an intelligent heater arranged in an oil-gas separator in an engine system; the intelligent heater is in communication connection with the electronic control unit; the intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit; the electronic control unit is used for sending a control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of engine oil, so that diesel oil mixed in the engine oil in the oil-gas separator can volatilize, the dilution rate of the engine oil is reduced, and the problems of reduced engine oil lubricity and service life, short oil change period, high long-term use risk, reduced performance of a diesel engine and the like caused by overhigh dilution rate of the engine oil are solved.
On the basis of the above control system for reducing the dilution rate of the engine system oil, another embodiment of the present application further provides a control method for reducing the dilution rate of the engine system oil, which can be applied to an electronic control unit in the control system for reducing the dilution rate of the engine system oil, please refer to fig. 2, where the control method mainly includes the following steps:
and S100, judging whether the engine system meets the engine oil dilution starting condition.
In practical applications, the specific implementation process of determining whether the engine system satisfies the engine oil dilution starting condition in step S100 may be as shown in fig. 3, and may include the following steps:
and S200, judging whether the engine system enters a far post-injection regeneration mode.
In practical application, whether the engine system enters the far post-injection regeneration mode or not can be judged by acquiring the running state of the engine. Wherein, only when the engine system enters the far after-spray regeneration mode, part of diesel oil is mixed into the engine oil by adhering to the cylinder wall, therefore, whether the engine system enters the far after-spray regeneration mode or not can be used as the engine oil dilution starting condition.
If the engine system is judged to enter the far post-injection regeneration mode, executing step S201; if the engine system is judged not to enter the far post-injection regeneration mode, step S202 is executed.
S201, judging that the engine system meets an engine oil dilution starting condition.
In practical application, when the engine system is judged to enter the far-back spray regeneration mode, the engine system can be considered to meet the engine oil dilution starting condition.
And S202, judging that the engine system does not meet the engine oil dilution starting condition.
In practical application, when it is determined that the engine system does not enter the far after injection regeneration mode, it may be considered that the engine system does not satisfy the engine oil dilution starting condition.
After step S100 is executed to determine whether the engine system satisfies the oil dilution starting condition, if it is determined that the engine system satisfies the oil dilution starting condition, step S102 is executed; and if the engine system does not meet the engine oil dilution starting condition, not executing the subsequent engine oil dilution step.
S102, obtaining the temperature of the engine oil in the oil-gas separator of the engine system.
In practical application, the temperature of the engine oil can be obtained by an intelligent heater in a control system for reducing the dilution rate of the engine oil. Specifically, the temperature can be detected by a temperature sensor in the intelligent heater.
S103, judging whether the engine oil temperature is smaller than a preset temperature limit value or not.
The boiling point of the light diesel oil is between 180 and 370 ℃, and the boiling point of the engine oil is between 240 and 400 ℃. The temperature for starting the volatilization of the diesel oil is about 70 ℃, the temperature for starting the volatilization of the diesel oil is about 300 ℃, the temperature for starting the volatilization of the engine oil is about 180 ℃ and the temperature for starting the volatilization of the engine oil is about 530 ℃. Therefore, the temperature of the engine oil mixed with the diesel oil can be controlled to be 70-180 ℃ to realize the volatilization of the diesel oil in the engine oil mixed with the diesel oil.
It should be noted that, on the premise of ensuring that the engine oil is not volatilized, the diesel oil volatilization effect is the best, and any value between 100 ℃ and 150 ℃ can be selected as the preset temperature limit value.
In addition, experiments prove that the diesel oil volatilizes the fastest about 120 ℃ for the mixture of the engine oil and the diesel oil in the oil-gas separator, and the engine oil hardly volatilizes, so that the preset temperature limit value can be 120 ℃. It should be noted that, the specific value of the preset temperature limit is not specifically limited, and the engine oil dilution rate is within the protection range of the present application as long as the engine oil dilution rate can be reduced.
If the engine oil temperature is less than the preset temperature limit, step S104 is executed.
And S104, controlling the intelligent heater to start heating.
In practical application, if the engine oil temperature is judged to be less than the preset temperature limit value, it is indicated that the engine oil temperature in the current oil-gas separator cannot volatilize diesel oil, and the engine oil in the oil-gas separator needs to be heated.
The intelligent heater can be used for sending a heating and electrifying command to the intelligent heater, and the heating resistance wire in the intelligent heater is controlled to be electrified, so that the engine oil in the oil-gas separator is heated.
Based on the above principle, the control method for reducing the engine oil dilution rate of the engine system according to this embodiment can be applied to the electronic control unit in the control system for reducing the engine oil dilution rate according to any of the above embodiments, and the method first determines whether the engine system meets an engine oil dilution starting condition, and if the determination result is that the engine oil dilution starting condition is met, obtains the temperature of the engine oil in the oil-gas separator of the engine system; and then judging whether the engine oil temperature is less than a preset temperature limit value, if so, controlling intelligent heating to start heating, namely realizing the volatilization of diesel oil by improving the temperature in the oil-gas separator when the engine system performs remote post-injection regeneration, thereby reducing the engine oil dilution rate.
Alternatively, in another embodiment provided by the present application, after the step S104 of controlling the smart heater to start heating is executed, referring to fig. 4, the method for controlling to reduce the dilution rate of the engine system oil further includes:
and S300, judging whether the engine oil temperature is greater than a preset temperature limit value in real time.
If the engine oil temperature is judged to be greater than the preset temperature limit value, executing the step S301; and if the engine oil temperature is smaller than the preset temperature limit value, executing a step of controlling the intelligent heater to continuously start heating, namely step S104.
And S301, controlling the intelligent heater to stop heating.
The specific way of controlling the intelligent heater to stop heating may be: a heating power-off command is sent to the intelligent heater to control the heating resistance wire in the intelligent heater to be powered off,
in practical application, if the engine oil temperature is judged to be greater than the preset temperature limit value, the engine oil temperature in the oil-gas separator can be shown to reach the optimal diesel oil volatilization temperature at present, the engine oil in the oil-gas separator does not need to be heated, and the intelligent heater can be controlled to stop heating.
Alternatively, in another embodiment provided by the present application, after the step S104 of controlling the smart heater to start heating is executed, referring to fig. 5, the method for controlling to reduce the dilution rate of the engine system oil further includes:
returning to the step of judging whether the engine system meets the engine oil dilution starting condition, namely step S100. And if the engine system does not meet the engine oil dilution starting condition, controlling the intelligent heater to stop heating.
In practical application, after the intelligent heater is controlled to start heating, whether the engine system exits the far post-injection regeneration mode or not can be judged in real time, and when the engine system exits the far post-injection regeneration mode, the intelligent heater is controlled to stop heating.
It should be noted that, the specific way of controlling the intelligent heater to stop heating may refer to the related description of step S301, and is not described herein again.
Optionally, in another embodiment provided by the present application, before or after executing any step, the control method for reducing the engine system oil dilution rate may further include steps S400 to S401:
s400, monitoring whether the engine oil liquid level of the engine system is larger than a preset liquid level limit value in real time.
The preset liquid level limit can be an engine oil liquid level limit value corresponding to the cylinder scuffing risk generated by an engine system, and the specific value of the preset liquid level limit value can be determined according to the specific application environment and the user requirement.
If the monitored engine oil level of the engine system is greater than the preset level limit, step S401 is executed.
S401, sending out an alarm signal.
The alarm signal can be a special flash code reminding signal or a buzzing signal, and is determined according to specific application environment and user requirements.
In practical application, after the engine oil liquid level in the engine system exceeds the preset liquid level limit value, the engine system continues to operate, so that the risk of cylinder pulling exists, whether the engine oil liquid level of the engine system exceeds the preset liquid level limit value or not can be monitored in real time, and an alarm signal is sent out after the engine oil liquid level exceeds the preset liquid level limit value so as to prompt a user to replace the engine oil in time.
Based on the method provided by the above embodiment, a corresponding embodiment is provided for the content of the above embodiment, assuming that the preset temperature limit is 120 ℃, and with reference to fig. 6, the method specifically has the following implementation process:
when the far after-injection regeneration is performed, the engine oil dilution reduction function is turned on. When the measured value of the temperature of the intelligent heater is lower than 120 ℃, the ECU sends a control signal to electrify a resistance wire in the intelligent heater to heat the engine oil in the oil-gas separator, and the difference is made between the measured value and the actual heating temperature, so that the closed-loop control of the temperature of the engine oil in the oil-gas separator is realized, and the temperature of the engine oil in the oil-gas separator is kept stable at about 120 ℃. And when the spraying regeneration is finished after a long time, the resistance wire heating is withdrawn.
Features described in the embodiments in the present specification may be replaced with or combined with each other, and the same and similar portions among the embodiments may be referred to each other, and each embodiment is described with emphasis on differences from other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A control system for reducing a dilution rate of engine oil in an engine system, comprising: the intelligent heater comprises an electronic control unit and an intelligent heater arranged in an oil-gas separator in the engine system; the intelligent heater is in communication connection with the electronic control unit;
the intelligent heater is used for detecting the temperature of the engine oil in the oil-gas separator and heating the engine oil in the oil-gas separator according to a control instruction issued by the electronic control unit;
and the electronic control unit is used for sending the control instruction to the intelligent heater by combining the running condition of an engine system and the temperature data of the engine oil.
2. The control system for reducing dilution rate of engine system oil according to claim 1, wherein the intelligent heater is disposed at a bottom or top of the oil separator.
3. The control system for reducing dilution rate of engine system oil according to claim 1 or 2, wherein said smart heater includes: a temperature sensor and a heating resistance wire;
the temperature sensor is used for detecting the temperature of the engine oil in the oil-gas separator,
the heating resistance wire is used for heating the engine oil in the oil-gas separator.
4. A control method for reducing an oil dilution rate of an engine system, which is applied to an electronic control unit in the control system for reducing the oil dilution rate according to any one of claims 1-3, the method comprising:
judging whether the engine system meets an engine oil dilution starting condition or not;
if the engine system is judged to meet the engine oil dilution starting condition, acquiring the engine oil temperature in an oil-gas separator in the engine system;
judging whether the engine oil temperature is less than a preset temperature limit value or not;
and if the engine oil temperature is judged to be less than the preset temperature limit value, controlling the intelligent heater to start heating.
5. The control method for reducing the dilution rate of engine system oil according to claim 4, wherein determining whether the engine system meets an oil dilution condition comprises:
judging whether the engine system enters a far post-injection regeneration mode or not;
if the engine system is judged to enter the remote post-injection regeneration mode, judging that the engine system meets an engine oil dilution condition;
and if the engine system is judged not to enter the remote post-injection regeneration mode, judging that the engine system does not meet the engine oil dilution condition.
6. The control method for reducing the dilution rate of engine system oil according to claim 4, further comprising, after controlling the smart heater to start heating:
judging whether the engine oil temperature is greater than the preset temperature limit value in real time;
if the engine oil temperature is judged to be greater than the preset temperature limit value, controlling the intelligent heater to stop heating;
and if the engine oil temperature is judged to be less than the preset temperature limit value, controlling the intelligent heater to continuously start heating.
7. The control method for reducing the dilution rate of engine system oil according to claim 6, wherein controlling the smart heater to stop heating comprises:
and issuing a heating power-off instruction to the intelligent heater to control the heating resistance wire in the intelligent heater to be powered off.
8. The control method for reducing the dilution rate of engine system oil according to any one of claims 4-7, wherein controlling the smart heater to activate heating comprises:
and issuing a heating and electrifying command to the intelligent heater to control the heating resistance wire in the intelligent heater to be electrified.
9. The control method for reducing the dilution rate of engine system oil according to any one of claims 4-7, further comprising, after controlling the smart heater to start heating:
and returning to the step of judging whether the engine system meets the engine oil dilution starting condition, and controlling the intelligent heater to stop heating if the engine system does not meet the engine oil dilution starting condition.
10. The control method for reducing the dilution rate of engine system oil according to any one of claims 4-7, further comprising, before or after any step:
monitoring whether the engine oil liquid level of the engine system is greater than a preset liquid level limit value in real time;
and if the engine oil level of the engine system is monitored to be greater than the preset liquid level limit value, sending an alarm signal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116291800A (en) * | 2023-03-21 | 2023-06-23 | 重庆长安汽车股份有限公司 | Engine crankcase ventilation system, engine oil water content adjusting method and vehicle |
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