CN114704378A - Engine control method and device, electronic equipment and vehicle - Google Patents
Engine control method and device, electronic equipment and vehicle Download PDFInfo
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- CN114704378A CN114704378A CN202110437000.8A CN202110437000A CN114704378A CN 114704378 A CN114704378 A CN 114704378A CN 202110437000 A CN202110437000 A CN 202110437000A CN 114704378 A CN114704378 A CN 114704378A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 102
- 239000010705 motor oil Substances 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 238000012423 maintenance Methods 0.000 claims description 17
- 239000010721 machine oil Substances 0.000 claims description 7
- 239000012895 dilution Substances 0.000 abstract description 21
- 238000010790 dilution Methods 0.000 abstract description 21
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000000295 fuel oil Substances 0.000 description 12
- 238000009423 ventilation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/083—Safety, indicating, or supervising devices relating to maintenance, e.g. diagnostic device
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The disclosure relates to a control method and a control device for an engine, electronic equipment and a vehicle, and relates to the field of engine control, wherein the method comprises the following steps: obtaining a first oil level in an oil pan of an engine of a vehicle; determining whether to maintain the engine under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value; and under the condition that the engine is determined to be maintained, adjusting the negative pressure of the intake manifold of the engine to enable the negative pressure of the intake manifold of the engine to be larger than or equal to a preset pressure threshold value, so as to solve the problems of poor lubricating effect of engine oil, engine scuffing and the like caused by overhigh dilution rate of engine oil of the vehicle engine.
Description
Technical Field
The present disclosure relates to the field of engine control, and in particular, to a method and an apparatus for controlling an engine, an electronic device, and a vehicle.
Background
After a vehicle engine works for a long time, the problem of engine oil dilution caused by mixing of engine oil in an oil pan by fuel oil is very easy to occur, the engine oil dilution refers to the phenomenon that when an engine cold machine which is directly injected in a cylinder in a low-temperature environment operates, the temperature of a cylinder wall is low, oil injection atomization is poor, a wet wall is generated, and the fuel oil attached to the cylinder wall enters a crankcase along an oil return hole of a piston in a compression stroke and flows into the oil pan to be mixed with the engine oil. When the dilution rate of the engine oil is greater than or equal to a certain value, the problems of poor lubricating effect of the engine oil, engine scuffing and the like can be caused.
Disclosure of Invention
The disclosure provides a control method and device of an engine, electronic equipment and a vehicle, and aims to solve the problems of poor lubricating effect of engine oil, engine bearing bush pulling and the like caused by overhigh dilution rate of engine oil of the vehicle engine.
In a first aspect the present disclosure provides a method of controlling an engine, the method comprising: obtaining a first oil level in an oil pan of an engine of a vehicle; determining whether to maintain the engine under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value; in the event that it is determined that maintenance is to be performed on the engine, adjusting the engine intake manifold negative pressure such that the engine intake manifold negative pressure is greater than or equal to a preset pressure threshold.
Optionally, the determining whether to perform maintenance on the engine comprises: acquiring the engine oil temperature of the engine; and maintaining the engine under the condition that the engine oil temperature is greater than or equal to a preset temperature threshold and the electric quantity of the vehicle is sufficient.
Optionally, the charge capacity of the vehicle is determined to be sufficient by: acquiring the residual electric quantity of the vehicle; and determining that the electric quantity of the vehicle is sufficient under the condition that the residual electric quantity is greater than or equal to a preset electric quantity threshold value.
Optionally, the charge capacity of the vehicle is determined to be sufficient by: determining that the charge of the vehicle is sufficient if the vehicle is in a charging state.
Optionally, after adjusting the engine intake manifold negative pressure to make the engine intake manifold negative pressure greater than or equal to a preset pressure threshold, the method further comprises: obtaining a second oil level in an oil pan of the vehicle engine; and under the condition that the engine oil liquid level is less than or equal to a second preset liquid level threshold value, stopping adjusting the negative pressure of the engine intake manifold.
Optionally, the method further comprises: determining whether the engine is shut down or not if the oil level is greater than or equal to the second preset level threshold; and under the condition that the engine is not flamed out, continuously adjusting the negative pressure of the engine intake manifold so as to maintain the negative pressure of the engine intake manifold in a state of being greater than or equal to the preset pressure threshold value.
Optionally, the method further comprises: and displaying alarm information under the condition that the first machine oil liquid level is greater than or equal to a first preset liquid level threshold value.
In a second aspect, there is provided a control apparatus for an engine, comprising: the engine oil level acquisition module is used for acquiring a first engine oil level in an oil pan of an engine of the vehicle; the maintenance decision module is used for determining whether to maintain the engine or not under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold; the adjusting module is used for adjusting the negative pressure of the engine intake manifold under the condition that the engine is determined to be maintained, so that the negative pressure of the engine intake manifold is larger than or equal to a preset pressure threshold value.
Optionally, the maintenance decision module is further configured to obtain an oil temperature of the engine; and maintaining the engine under the condition that the engine oil temperature is greater than or equal to a preset temperature threshold and the electric quantity of the vehicle is sufficient.
Optionally, the maintenance decision module is further configured to obtain a remaining capacity of the vehicle; and determining that the electric quantity of the vehicle is sufficient under the condition that the residual electric quantity is greater than or equal to a preset electric quantity threshold value.
Optionally, the maintenance decision module is further configured to determine that the electric quantity of the vehicle is sufficient when the vehicle is in a charging state.
Optionally, the oil level acquisition module is further configured to acquire a second oil level in an engine oil pan of the vehicle.
Optionally, the adjusting module is further configured to stop adjusting the engine intake manifold negative pressure when the oil level is less than or equal to a second preset level threshold.
Optionally, the adjusting module is further configured to determine whether the engine is shut down if the oil level is greater than or equal to the second preset level threshold; and under the condition that the engine is not flamed out, continuously adjusting the negative pressure of the engine intake manifold so as to maintain the negative pressure of the engine intake manifold in a state of being greater than or equal to the preset pressure threshold value.
Optionally, the apparatus further comprises: and the warning module is used for displaying warning information under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value.
In a third aspect, an electronic device is provided, which includes an ECU (electronic Control Unit, engine electronic Control Unit), and an HCU (Hybrid Control Unit) connected to the ECU, where the ECU is configured to obtain a first oil level in an oil pan of an engine of a vehicle, and determine whether the first oil level is greater than or equal to a first preset level threshold; and adjusting the engine intake manifold negative pressure to make the engine intake manifold negative pressure greater than or equal to a preset pressure threshold; the HCU is used for determining whether the engine is maintained or not under the condition that the HCU determines that the first engine oil liquid level is larger than or equal to a first preset liquid level threshold value, and controlling the ECU to adjust the negative pressure of the engine intake manifold under the condition that the engine is determined to be maintained.
In a fourth aspect, a vehicle is provided that includes the control device of the engine described above; or, include the above-mentioned electronic equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart illustrating a method of controlling an engine according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating another method of controlling an engine according to an exemplary embodiment;
FIG. 3 is a block diagram of an engine control apparatus according to an exemplary embodiment;
FIG. 4 is a block diagram of another engine control apparatus according to an exemplary embodiment;
FIG. 5 is a block diagram illustrating an electronic device in accordance with an exemplary embodiment;
FIG. 6 is a block diagram of a vehicle shown in accordance with an exemplary embodiment.
Detailed Description
The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
After a vehicle engine works for a long time, the problem that the oil in the oil pan is mixed by fuel oil to dilute the oil is easy to occur, thereby causing the problems of poor lubricating effect of engine oil, engine bearing slip and the like, an electric control bypass valve which can be arranged between the oil pan and the main oil gallery and is communicated with an oil inlet and an oil outlet of the oil cooler, under the condition of over-high engine oil dilution rate, the ECU can control the opening of the electric control bypass valve to ensure that the engine oil in the oil pan flows into the main oil gallery through the electric control bypass valve, because the oil in the oil pan does not flow into the main oil gallery through the oil cooler, the temperature of the oil in the main oil gallery rises, therefore, fuel oil in the engine oil volatilizes, and the engine oil dilution rate is reduced, but the control mode needs to add an additional electric control bypass valve, so that the control on the engine oil dilution rate is complex, and the realization cost is increased.
However, the inventor finds that when the temperature of the engine oil reaches the fuel volatilization temperature, the fuel mixed in the engine oil is volatilized and enters the engine along with a crankcase ventilation system to be continuously combusted. The greater the crankcase ventilation flow, the faster the fuel will volatilize. When the ventilation system of the crankcase of the engine is in a small load state, the ventilation gas flow of the crankcase is increased along with the increase of the negative pressure of the intake manifold until the ventilation gas flow of the crankcase reaches the maximum when the negative pressure reaches a certain value.
Based on the above, in order to solve the problem of oil dilution, the present disclosure provides a control method, a device, an electronic apparatus and a vehicle of an engine, wherein the method can be used for controlling the engine according to the oil level in an oil pan of the engine of the vehicle, the oil temperature in the oil pan and the residual capacity of a battery of the vehicle; according to the first engine oil liquid level, the engine oil temperature and the residual electric quantity, the negative pressure of the engine intake manifold is controlled to be maintained at a preset pressure threshold value, so that the fuel oil volatilization efficiency of the mixed engine oil in the oil pan is increased to the maximum extent, the engine oil dilution rate is reduced, meanwhile, the fuel oil mixed with the engine oil reenters the engine to be continuously combusted through the crankcase ventilation system, the fuel oil consumption is saved, in addition, additional devices are not required to be added in the method, the realization process of reducing the engine oil dilution rate is simpler, and the realization cost is lower.
The present disclosure is described below with reference to specific examples.
Fig. 1 is a control method of an engine according to an embodiment of the present disclosure, as shown in fig. 1, the method includes:
s101, obtaining a first oil level in an oil pan of an engine of the vehicle.
Wherein the first oil level may be acquired by a level sensor provided in the oil pan.
S102, determining whether the engine is maintained or not under the condition that the oil level of the first engine is greater than or equal to a first preset liquid level threshold value.
The first preset liquid level threshold value can be the maximum oil sump oil level which does not affect the normal operation of the engine, and can be preset according to a test value or an empirical value; taking the oil level of the oil pan which is most beneficial to the work of the engine in a normal state as a second preset liquid level threshold, wherein the dilution rate of the oil in the oil pan can be determined by the ratio of the difference value of the first oil level and the second preset liquid level threshold to the first oil level; and under the condition that the ratio is equal to the preset dilution ratio threshold value, the corresponding first machine oil liquid level is the first preset liquid level threshold value. Therefore, in the present disclosure, in the case that the first oil level is greater than or equal to the first preset level threshold, it may be determined that the oil dilution rate of the engine is high, and at this time, it may be further determined whether to perform maintenance on the engine to determine whether to control the engine to reduce the oil dilution rate.
In this step, the oil temperature of the engine may be obtained, and the engine may be maintained when the oil temperature is greater than or equal to the preset temperature threshold and the electric quantity of the vehicle is sufficient, so as to determine whether the current operating state of the vehicle supports maintenance of the engine according to the oil temperature and the electric quantity of the vehicle.
For example, the oil temperature of the engine may be acquired by a temperature sensor provided in the oil pan, and whether the electric quantity of the vehicle is sufficient may be determined by any one of the following two ways:
in one possible implementation manner, the remaining capacity of the vehicle may be obtained, and the capacity of the vehicle is determined to be sufficient if the remaining capacity is greater than or equal to a preset capacity threshold. Thus, when the remaining capacity is greater than or equal to the preset capacity threshold, it indicates that the remaining capacity of the vehicle is sufficient to support maintenance of the engine.
In another possible implementation, the charge of the vehicle may be determined to be sufficient with the vehicle in a charging state. In this way, when the vehicle is in the charged state, it indicates that the vehicle is continuously supplied with electric energy, and the electric energy required for engine maintenance can be satisfied.
S103, under the condition that the maintenance of the engine is determined, adjusting the negative pressure of the intake manifold of the engine to enable the negative pressure of the intake manifold of the engine to be larger than or equal to a preset pressure threshold value.
The preset pressure threshold may be preset according to an empirical value or a test value, for example, considering that the larger the gas flow rate of the crankcase is, the more favorable the volatilization of the fuel oil is, and tests show that the maximum gas flow rate of the crankcase does not change after the negative pressure of the intake manifold is greater than or equal to a certain threshold, the threshold may be used as the preset pressure threshold, that is, the minimum negative pressure ensuring the maximum gas flow rate of the crankcase may be used as the preset pressure threshold, so as to ensure that the influence on the working efficiency of the engine is reduced while the volatilization of the fuel oil is accelerated.
In one possible implementation manner of this step, the intake manifold negative pressure can be adjusted by adjusting the torque of the engine, and the magnitude of the intake manifold negative pressure and the magnitude of the torque of the engine are in a negative correlation relationship, that is, the smaller the torque of the engine is, the larger the intake manifold negative pressure is.
By adopting the scheme, the oil level in the oil pan of the vehicle engine, the oil temperature in the oil pan and the residual capacity of the vehicle battery can be determined; according to the first engine oil liquid level, the engine oil temperature and the residual electric quantity, the negative pressure of the engine intake manifold is controlled to be maintained at a preset pressure threshold value, so that the fuel oil volatilization efficiency of the mixed engine oil in the oil pan is increased to the maximum extent, the engine oil dilution rate is reduced, meanwhile, the fuel oil mixed with the engine oil reenters the engine to be continuously combusted through the crankcase ventilation system, the fuel oil consumption is saved, in addition, additional devices are not required to be added in the method, the realization process of reducing the engine oil dilution rate is simpler, and the realization cost is lower.
Fig. 2 is another engine control method provided in the embodiment of the present disclosure, and as shown in fig. 2, the method includes:
s201, obtaining a first oil level in an oil pan.
In this step, the first oil level may be acquired by a level sensor provided in the oil pan.
S202, judging whether the oil level of the first machine is larger than or equal to a first preset liquid level threshold value or not.
Executing step S204 to step S206 when the first engine oil liquid level is greater than or equal to a first preset liquid level threshold;
and executing the step S203 if the first engine oil liquid level is less than or equal to the first preset liquid level threshold.
S203, judging whether the engine is shut down.
In the case where the engine is not turned off, returning to execute steps S201 and S202;
in the case where the engine is turned off, no operation is performed.
And S204, displaying the alarm information.
In this step, the warning information may be displayed through a display screen, for example, the display screen may display "engine oil warning".
And S205, acquiring the engine oil temperature of the engine.
In this step, the oil temperature may be acquired by a temperature sensor provided in the oil pan.
And S206, judging whether the engine oil temperature is greater than or equal to a preset temperature threshold value.
If the engine oil temperature is greater than or equal to the preset temperature threshold, executing steps S207 and S208;
returning to the step S203 when the temperature of the engine oil is less than or equal to the preset temperature threshold;
and S207, acquiring the residual electric quantity of the vehicle.
And S208, judging whether the residual electric quantity is greater than or equal to a preset electric quantity threshold value.
If the remaining power is greater than or equal to the preset power threshold, performing step S209;
returning to the step S203 when the remaining power is less than or equal to the preset power threshold;
s209, adjusting the negative pressure of the intake manifold of the engine to enable the negative pressure of the intake manifold of the engine to be larger than or equal to a preset pressure threshold value.
And S210, acquiring a second oil level in the oil pan.
In this step, the second oil level can be detected by a level sensor in the oil pan.
S211, judging whether the liquid level of the second engine oil is less than or equal to a second preset liquid level threshold value.
Stopping adjusting the negative pressure of the intake manifold of the engine when the second engine oil level is less than or equal to a second preset level threshold;
and when the second engine oil liquid level is less than or equal to a second preset liquid level threshold value, the engine oil dilution rate is normal and no adjustment is needed.
And returning to the step S203 when the second oil level is greater than or equal to a second preset level threshold value.
It should be noted that, for simplicity of description, the above method embodiments are all expressed as a series of action combinations, but those skilled in the art should understand that the present disclosure is not limited by the described action sequence. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required for the disclosure.
By adopting the scheme, the problem of engine oil dilution in the engine can be treated and maintained according to the engine oil level in the vehicle oil pan, the engine oil temperature of the engine and the battery electric quantity, the probability of engine failure is reduced, and the normal work of the engine is guaranteed.
Fig. 3 is a control device for a vehicle grille according to an embodiment of the present disclosure, as shown in fig. 3, the device includes:
an oil level acquisition module 301 for acquiring a first oil level in an oil pan of an engine of a vehicle;
a maintenance decision module 302 configured to determine whether to maintain the engine if the first engine oil level is greater than or equal to a first preset level threshold;
an adjusting module 303, configured to adjust the engine intake manifold negative pressure so that the engine intake manifold negative pressure is greater than or equal to a preset pressure threshold value, if it is determined that the engine is to be serviced.
Optionally, the maintenance decision module 302 is further configured to obtain an oil temperature of the engine; and maintaining the engine under the condition that the engine oil temperature is greater than or equal to a preset temperature threshold and the electric quantity of the vehicle is sufficient.
Optionally, the maintenance decision module 302 is further configured to obtain a remaining capacity of the vehicle; and determining that the electric quantity of the vehicle is sufficient under the condition that the residual electric quantity is greater than or equal to a preset electric quantity threshold value.
Optionally, the maintenance decision module 302 is further configured to determine that the vehicle is sufficiently charged if the vehicle is in a charging state.
Optionally, the oil level obtaining module 301 is further configured to obtain a second oil level in an engine oil pan of the vehicle.
Optionally, the adjusting module 303 is further configured to stop adjusting the engine intake manifold negative pressure if the oil level is less than or equal to a second preset level threshold.
Optionally, the adjusting module 303 is further configured to determine whether the engine is shut down if the oil level is greater than or equal to the second preset level threshold; and under the condition that the engine is not flamed out, continuously adjusting the negative pressure of the engine intake manifold so as to maintain the negative pressure of the engine intake manifold in a state of being greater than or equal to the preset pressure threshold value.
In addition, under the condition that the dilution rate of machine oil reaches preset dilution rate threshold value in the oil pan, the machine oil liquid level in the oil pan reaches first preset liquid level threshold value promptly, may lead to engine oil lubrication effect bad, and the engine draws tile scheduling problem, consequently under the condition that machine oil liquid level reaches first preset liquid level threshold value in the oil pan, it is very necessary to early warn in time, as shown in fig. 4, the device still includes:
and the warning module 304 is configured to display warning information when the first engine oil liquid level is greater than or equal to a first preset liquid level threshold.
Like this can in time report an emergency and ask for help or increased vigilance the driver under the condition that the machine oil liquid level reaches first predetermined liquid level threshold value in the oil pan to in time maintain the engine, avoid appearing above-mentioned trouble.
The prompting device may be a display, so that the prompting message can be displayed on the display, or a sound device, so that the prompting message can be displayed through voice broadcasting.
Fig. 5 is a block diagram illustrating an electronic device 500 in accordance with an example embodiment.
As shown in fig. 5, the electronic device 500 may include: includes an ECU501, and an HCU502 connected to the ECU.
The ECU501 is configured to obtain a first engine oil level in an oil pan of an engine of the vehicle, and determine whether the first engine oil level is greater than or equal to a first preset level threshold; and adjusting the engine intake manifold negative pressure to make the engine intake manifold negative pressure greater than or equal to a preset pressure threshold;
the HCU502 is used for determining whether to maintain the engine under the condition that the HCU determines that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value, and controlling the ECU to adjust the negative pressure of the engine intake manifold under the condition that the HCU determines that the engine is maintained.
For example, after the ECU acquires the first engine oil level in the oil pan, the first engine oil level information is sent to the HCU, in the case that the HCU determines that the first engine oil level is greater than or equal to a first preset liquid level threshold, the engine oil temperature and the battery state of the engine are acquired through the sensors, in the case that the engine oil temperature is greater than or equal to a preset temperature threshold and the battery power is sufficient, the HCU determines to maintain the engine, and controls the ECH to adjust the engine intake manifold negative pressure so that the engine intake manifold negative pressure is greater than or equal to a preset pressure threshold. For example, the preset temperature threshold value is 70 ℃, the engine oil temperature reaches 80 ℃, the engine oil temperature is determined to be greater than or equal to the preset temperature threshold value, the automobile is in a charging mode, or the remaining capacity of the automobile battery reaches 50% and is greater than or equal to the preset capacity threshold value 40%, the electric capacity of the automobile battery is determined to be sufficient, the HCU continuously sends a high level to the ECU, and when the ECU receives the high level sent by the HCU, the negative pressure of the intake manifold of the engine is adjusted, so that the negative pressure of the intake manifold of the engine is greater than or equal to the preset pressure threshold value, and the engine is maintained.
Fig. 6 is a vehicle 100 according to an embodiment of the present disclosure, as shown in fig. 6, the vehicle includes the electronic device 500.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A control method of an engine, characterized by comprising:
obtaining a first oil level in an oil pan of an engine of a vehicle;
determining whether to maintain the engine under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value;
in the event that it is determined that maintenance is to be performed on the engine, adjusting the engine intake manifold negative pressure such that the engine intake manifold negative pressure is greater than or equal to a preset pressure threshold.
2. The method of claim 1, wherein the determining whether to service the engine comprises:
acquiring the engine oil temperature of the engine;
and maintaining the engine under the condition that the engine oil temperature is greater than or equal to a preset temperature threshold and the electric quantity of the vehicle is sufficient.
3. The method of claim 2, wherein the charge sufficiency of the vehicle is determined by:
acquiring the residual electric quantity of the vehicle;
and determining that the electric quantity of the vehicle is sufficient under the condition that the residual electric quantity is greater than or equal to a preset electric quantity threshold value.
4. The method of claim 2, wherein the charge sufficiency of the vehicle is determined by:
determining that the charge of the vehicle is sufficient if the vehicle is in a charging state.
5. The method of claim 1, wherein after adjusting the engine intake manifold negative pressure to be greater than or equal to a preset pressure threshold, the method further comprises:
obtaining a second oil level in an oil pan of the vehicle engine;
and under the condition that the engine oil liquid level is less than or equal to a second preset liquid level threshold value, stopping adjusting the negative pressure of the engine intake manifold.
6. The method of claim 5, further comprising:
determining whether the engine is shut down or not if the oil level is greater than or equal to the second preset level threshold;
and under the condition that the engine is not flamed out, continuously adjusting the negative pressure of the engine intake manifold so as to maintain the negative pressure of the engine intake manifold in a state of being greater than or equal to the preset pressure threshold value.
7. The method according to any one of claims 1 to 6, further comprising:
and displaying alarm information under the condition that the first machine oil liquid level is greater than or equal to a first preset liquid level threshold value.
8. A control device of an engine, characterized by comprising:
the engine oil level acquisition module is used for acquiring a first engine oil level in an oil pan of an engine of the vehicle;
the maintenance decision module is used for determining whether to maintain the engine or not under the condition that the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value;
the adjusting module is used for adjusting the negative pressure of the engine intake manifold under the condition that the engine is determined to be maintained, so that the negative pressure of the engine intake manifold is larger than or equal to a preset pressure threshold value.
9. An electronic apparatus, comprising an electronic control unit ECU, and a hybrid control unit HCU connected to the ECU,
the ECU is used for acquiring a first engine oil liquid level in an oil pan of an engine of the vehicle and determining whether the first engine oil liquid level is greater than or equal to a first preset liquid level threshold value; and adjusting the engine intake manifold negative pressure to make the engine intake manifold negative pressure greater than or equal to a preset pressure threshold;
the HCU is used for determining whether the engine is maintained or not under the condition that the HCU determines that the first engine oil liquid level is larger than or equal to a first preset liquid level threshold value, and controlling the ECU to adjust the negative pressure of the engine intake manifold under the condition that the engine is determined to be maintained.
10. A vehicle characterized by comprising the control device of the engine according to claim 8; or, comprising the electronic device of claim 9 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110437000.8A CN114704378A (en) | 2021-04-22 | 2021-04-22 | Engine control method and device, electronic equipment and vehicle |
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| CN202110437000.8A CN114704378A (en) | 2021-04-22 | 2021-04-22 | Engine control method and device, electronic equipment and vehicle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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