CN114687831B - Engine oil temperature control device and method - Google Patents
Engine oil temperature control device and method Download PDFInfo
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- CN114687831B CN114687831B CN202210349610.7A CN202210349610A CN114687831B CN 114687831 B CN114687831 B CN 114687831B CN 202210349610 A CN202210349610 A CN 202210349610A CN 114687831 B CN114687831 B CN 114687831B
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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
- F01M5/005—Controlling temperature of lubricant
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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
- F01M5/002—Cooling
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- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to the technical field of engine oil, and discloses an engine oil temperature control device and a method, wherein the engine oil temperature control device comprises an electromagnetic valve, an engine oil cooler and an engine oil filter, wherein the electromagnetic valve is provided with an oil inlet and two oil outlets, the two oil outlets can be communicated with the oil inlet, and the oil outlet proportions of the two oil outlets are different when the opening degree of the electromagnetic valve is different; an oil inlet of the electromagnetic valve is communicated with an oil outlet of the oil filter, one of two oil outlets of the electromagnetic valve is communicated with an oil inlet of the oil cooler and is communicated with the main oil duct through the oil cooler, and the other of the two oil outlets of the electromagnetic valve is directly communicated with the main oil duct. The engine oil temperature control device and the engine oil temperature control method solve the problem that the existing thermostat adopting paraffin as a temperature sensing medium cannot meet the requirement of accurate control of the temperature of the engine oil in the main oil gallery.
Description
Technical Field
The invention relates to the technical field of engine oil, in particular to an engine oil temperature control device and method.
Background
An engine oil cooling system for an engine is required to maintain the oil within a proper temperature range under all operating conditions, both to prevent overheating and overcooling of the engine. For this reason, in the prior art, an oil thermostat is used to control the flow path of the oil treated by the oil filter. However, most thermostat at present adopts paraffin as a temperature sensing medium, has "response delay" and "hysteresis characteristic", and cannot meet the requirement of accurate control of the temperature of the engine oil in the main oil gallery. Meanwhile, in specific practical application, the vehicle has the condition of frequent rotation speed and load alternation, and the traditional thermostat adopting paraffin as a temperature sensing medium cannot meet the requirement of dynamic response of engine oil temperature.
Disclosure of Invention
The invention provides an engine oil temperature control device and method, which can solve the problem that the existing thermostat adopting paraffin as a temperature sensing medium cannot meet the requirement of accurately controlling the engine oil temperature in a main oil gallery.
In order to achieve the purpose, the invention provides the following technical scheme:
the oil temperature control device comprises an electromagnetic valve, an oil cooler and an oil filter, wherein the electromagnetic valve is provided with an oil inlet and two oil outlets, the two oil outlets can be communicated with the oil inlet, and the oil outlet proportion of the two oil outlets is different when the opening degree of the electromagnetic valve is different;
an oil inlet of the electromagnetic valve is communicated with an oil outlet of the oil filter, one of two oil outlets of the electromagnetic valve is communicated with an oil inlet of the oil cooler and is communicated with the main oil duct through the oil cooler, and the other of the two oil outlets of the electromagnetic valve is directly communicated with the main oil duct.
The invention also provides an engine oil temperature control method which can be applied to the engine oil temperature control device, and the engine oil temperature control method comprises the following steps:
acquiring the real-time temperature of engine oil in a main oil duct;
and comparing the difference value between the target temperature and the real-time temperature of the engine oil in the main oil gallery with an allowable difference value range, and if the difference value between the real-time temperature and the target temperature is not in the allowable difference value range, adjusting the opening degree of the electromagnetic valve until the difference value between the real-time temperature and the target temperature is in the allowable difference value range.
Optionally, the target temperature is determined based on real-time operating conditions of the vehicle.
Optionally, the determining the target temperature according to the real-time working condition of the vehicle specifically includes:
the target temperature is determined based on at least one of a real-time rotational speed and a real-time torque of the engine.
Optionally, the determining the target temperature according to at least one of a real-time rotation speed and a real-time torque of the engine specifically includes:
comparing the real-time rotating speed with a rotating speed preset value of an engine, comparing the real-time torque with a torque preset value of the engine, and if one of the real-time rotating speed and the real-time torque exceeds the corresponding preset value, determining that the target temperature is a first target temperature; if the real-time rotating speed and the real-time torque do not exceed the corresponding preset values, the target temperature is a second target temperature;
the first target temperature is greater than the second target temperature.
Optionally, before determining the target temperature based on at least one of a real-time speed and a real-time torque of the engine, comprising:
comparing the real-time fuel dilution rate of the engine oil in the oil pan with a fuel dilution rate threshold, and if the real-time fuel dilution rate is greater than or equal to the fuel dilution rate threshold, determining the target temperature according to at least one of the real-time rotating speed and the real-time torque of the engine; and if the real-time fuel dilution rate is smaller than the fuel dilution rate threshold, directly determining that the target temperature is the second target temperature.
Optionally, the real-time fuel dilution ratio is: the ratio of the mass of fuel in the oil pan of the engine to the sum of the mass of fuel and the mass of engine oil in the oil pan.
Optionally, the fuel quality is within an engine oil change period: the difference between the mass of the fuel that is accumulated into the oil pan and the accumulated fuel evaporation amount.
Optionally, the mass of fuel accumulated into the oil pan is: the product of the number of times of the fuel post-injection and the single post-injection amount of the fuel and the wall attachment rate of the fuel.
Optionally, the oil quality is a lower limit value of the oil quality in the oil pan.
Drawings
Fig. 1 is a flowchart of an oil temperature control method according to an embodiment of the present invention;
fig. 2 is a flowchart of another oil temperature control method according to an embodiment of the present invention.
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 oil temperature control device provided by the embodiment comprises an electromagnetic valve, an oil cooler and an oil filter, wherein the electromagnetic valve is provided with an oil inlet and two oil outlets, the two oil outlets can be communicated with the oil inlet, and the oil outlet proportion of the two oil outlets is different when the opening degree of the electromagnetic valve is different;
an oil inlet of the electromagnetic valve is communicated with an oil outlet of the oil filter, one of two oil outlets of the electromagnetic valve is communicated with an oil inlet of the oil cooler and is communicated with the main oil duct through the oil cooler, and the other of the two oil outlets of the electromagnetic valve is directly communicated with the main oil duct.
The oil temperature control device provided by the embodiment comprises an electromagnetic valve, an oil cooler and an oil filter, wherein an oil inlet of the electromagnetic valve is communicated with an oil outlet of the oil filter, one of two oil outlets of the electromagnetic valve is communicated with an oil inlet of the oil cooler and is communicated with a main oil duct through the oil cooler, namely, oil discharged from the oil outlet of the electromagnetic valve enters the main oil duct after being cooled by the oil cooler; the other of the two oil outlets of the solenoid valve is directly communicated with the main oil gallery, that is, the oil discharged from the oil outlet of the solenoid valve is not cooled by the oil cooler, but directly enters the main oil gallery. The aperture of solenoid valve is different, and its two oil-out proportion is different, promptly, the engine oil temperature control device that this embodiment provided adjusts through the aperture to the solenoid valve, can change the engine oil that arrives the main oil gallery after the cooling of oil cooler promptly and not through the cooling of oil cooler and directly arrive the proportion of the engine oil of main oil gallery, and the engine oil of different temperatures mixes according to different proportions and can realize the regulation of engine oil temperature in the main oil gallery. The electromagnetic valve is short in time from full opening to full closing, even within 1s, and is not influenced by the characteristics of the temperature sensing wax any more, so that the temperature control response time can be remarkably shortened, the requirement for accurately controlling the temperature of the engine oil in the main oil duct can be met, the dynamic response requirement for the temperature of the engine oil in the main oil duct can be met under the condition that the rotation speed and the load alternation of a vehicle are frequent, and the stability of the temperature of the main oil duct is better.
In addition, the stroke of the valve core of the electromagnetic valve only depends on a Pulse Width Modulation (PWM) signal, is irrelevant to the characteristics of the temperature sensing wax, and can ensure that the initial opening temperature and the full opening temperature are infinitely close to or even coincide with each other, so that the temperature of a critical point is reduced, and the temperature oscillation phenomenon is improved.
The engine oil temperature control method provided by the embodiment can be applied to the engine oil temperature control device, as shown in fig. 1, and the engine oil temperature control method includes:
s1, acquiring the real-time temperature of engine oil in a main oil gallery;
and S2, comparing the difference value between the target temperature and the real-time temperature of the engine oil in the main oil gallery with an allowable difference value range, and if the difference value between the real-time temperature and the target temperature is not within the allowable difference value range, adjusting the opening of the electromagnetic valve until the difference value between the real-time temperature and the target temperature is within the allowable difference value range.
The engine oil temperature control method provided by the embodiment can be applied to the engine oil temperature control device, the real-time temperature of the engine oil in the main oil gallery is firstly obtained, then the difference value between the target temperature and the real-time temperature of the engine oil in the main oil gallery is compared with the allowable difference value range, if the difference value between the real-time temperature and the target temperature is not within the allowable difference value range, the opening degree of the electromagnetic valve is adjusted until the difference value between the real-time temperature and the target temperature is within the allowable difference value range, and therefore the control of the temperature of the engine oil in the main oil gallery is achieved. The electromagnetic valve is short in time from full opening to full closing, even within 1s, is not influenced by the characteristics of the temperature sensing wax any more, can remarkably accelerate the temperature control response time, can meet the requirement of accurate control of the temperature of the engine oil in the main oil duct, can meet the dynamic response requirement of the temperature of the engine oil in the main oil duct under the condition that the rotation speed and the load of a vehicle are frequently alternated, and is good in stability of the temperature of the main oil duct. In addition, the stroke of the valve core of the electromagnetic valve only depends on a Pulse Width Modulation (PWM) signal, is irrelevant to the characteristics of the temperature sensing wax, and can ensure that the initial opening temperature and the full opening temperature are infinitely close to or even coincide with each other, so that the temperature of a critical point is reduced, and the temperature oscillation phenomenon is improved.
Different working conditions have different requirements on the thickness of an oil film of lubricating oil (namely, engine oil), the temperature of the oil at low load can be properly increased so as to reduce friction power consumption, and the temperature of the oil at high load is prevented from being too high so as to ensure reliability. The existing engine oil temperature control method cannot realize the accurate control, and the engine oil temperature control method provided by the embodiment can finally realize that the difference value between the real-time temperature and the target temperature of the engine oil in the main oil gallery falls within the allowable difference value range by adjusting the opening of the electromagnetic valve when the difference value between the real-time temperature and the target temperature of the engine oil in the main oil gallery is not within the allowable difference value range, so that the accurate control of the engine oil temperature in the main oil gallery is realized.
In a specific implementation manner, in step S2, the target temperature of the engine oil in the main oil gallery may be determined according to a real-time operating condition of the vehicle.
In an optional implementation manner, determining a target temperature of engine oil in a main oil gallery according to a real-time working condition of a vehicle specifically includes:
a target temperature of the oil in the main oil gallery is determined based on at least one of a real-time rotational speed and a real-time torque of the engine.
Further, determining a target temperature of the engine oil in the main oil gallery according to at least one of a real-time rotating speed and a real-time torque of the engine specifically includes:
comparing the real-time rotating speed of the engine with a rotating speed preset value of the engine, comparing the real-time torque of the engine with a torque preset value of the engine, and if one of the real-time rotating speed of the engine and the real-time torque of the engine exceeds the corresponding preset value, the target temperature of the engine oil in the main oil gallery is a first target temperature; if the real-time rotating speed of the engine and the real-time torque of the engine do not exceed the corresponding preset values, the target temperature of the engine oil in the main oil gallery is a second target temperature; wherein the first target temperature is greater than the second target temperature; the first target temperature, the second target temperature, the preset value of the rotating speed of the engine and the preset value of the torque of the engine can be set according to actual requirements.
Illustratively, when the engine is in a medium-low load, the temperature of engine oil in the main oil gallery is low, the mechanical loss of an engine system is greatly increased, at the moment, the opening of the electromagnetic valve can be changed to enable low-temperature engine oil with the proportion of X% in the engine oil entering from an oil inlet of the electromagnetic valve to directly enter the main oil gallery without passing through an engine oil cooler, so that the engine oil is in an efficient working temperature range through mixing two paths of engine oil with different temperatures; wherein, X% is more than 0 and less than 1.
During the running process of a vehicle, the engine generates a large amount of heat, and particularly under the conditions of high speed and heavy load, the temperature of engine oil serving as a lubricating and cooling medium of a kinematic pair of the engine is too high under the conditions of high speed and heavy load, so that the oil film thickness is thin, the carbonization rate is accelerated, and the risk of engine failure is brought. At the moment, the opening of the electromagnetic valve can be changed, so that all the engine oil entering from the oil inlet of the electromagnetic valve enters the main oil gallery after oil-water heat exchange is carried out on the engine oil through the engine oil cooler.
Of course, the target temperature values of the engine oil in the main oil gallery can also be multiple, namely, multiple target temperatures are determined through multiple rotating speed preset values and/or multiple torque preset values, so that the opening degree of the electromagnetic valve is more accurate to correspond to the target temperatures.
In an alternative implementation, before determining the target temperature of the engine based on at least one of a real-time speed and a real-time torque of the engine, the method includes:
comparing the real-time fuel dilution rate of the engine oil in the oil pan with a fuel dilution rate threshold, and if the real-time fuel dilution rate is greater than or equal to the fuel dilution rate threshold, determining a target temperature according to at least one of the real-time rotating speed and the real-time torque of the engine; and if the real-time fuel dilution rate is smaller than the fuel dilution rate threshold value, directly determining that the target temperature is the second target temperature.
The real-time fuel oil dilution rate is the ratio of the fuel oil mass in the oil pan of the engine to the sum of the fuel oil mass and the engine oil mass in the oil pan.
The fuel quality is in the engine oil change period: the difference between the mass of fuel entering the oil pan and the accumulated amount of fuel evaporation is accumulated.
The mass of fuel accumulated into the sump is: the product of the number of times of post-injection of fuel oil, the single post-injection amount of fuel oil and the wall-attaching rate of fuel oil; the accumulated amount of fuel evaporation may be determined empirically, for example: can be obtained by calculation according to the historical engine oil temperature and the time length distribution thereof.
In an alternative implementation, the oil mass is a lower limit value of the oil mass in the oil pan.
The actual quality of the engine oil in the oil pan is larger than or equal to the lower limit value, and the real-time fuel oil dilution rate is the ratio of the fuel oil quality in the engine oil pan to the sum of the fuel oil quality and the engine oil quality in the oil pan, so that the calculated real-time fuel oil dilution rate is larger than or equal to the actual real-time fuel oil dilution rate.
In the embodiment, the stroke of the valve core is driven by electromagnetic force, the opening of the electromagnetic valve is controlled by an ECU (electronic control unit) through strategy, the temperature lag problem and the temperature boundary problem do not exist, all temperature points can be fully opened and fully closed within the corresponding relation range of the valve core stroke and the electromagnetic force, the temperature offset corresponding to the same stroke in the temperature rising and reducing process is almost the same, and the temperature offset is greatly lower than that of a thermostat adopting paraffin as a temperature sensing medium. And the paraffin is used as a thermostat of a temperature sensing medium, the paraffin temperature sensing body senses the temperature of the engine oil in front of the engine oil cooler, and the temperature of the engine oil in the main oil duct is finally required to be controlled, wherein the difference is also related to the use boundary and the heat dissipation capacity of the engine oil cooler, and the adaptability adjusting effect is poor under the condition that the rotating speed, the torque, the water temperature, the water pump flow and the like of an engine change. In the embodiment, the adaptive closed-loop regulation is directly carried out on the basis of the temperature of the engine oil in the main oil gallery, and the stability and consistency of the temperature of the engine oil in the main oil gallery are less influenced by an external boundary and an engine oil cooler.
The engine oil temperature control method provided by the embodiment has the advantages of short delay time, small control offset and the like, the initial temperature is designed in a differentiated mode, and the evaporation of fuel oil in the oil pan is accelerated by forcibly raising the temperature on the premise of ensuring the reliability.
A specific method for controlling the temperature of the engine oil provided in this embodiment is described below, and as shown in fig. 2, the method for controlling the temperature of the engine oil includes the following steps:
s31, calculating the real-time fuel oil dilution rate of engine oil in an oil pan;
step S32, comparing the real-time fuel dilution rate with a fuel dilution rate threshold, and if the real-time fuel dilution rate is larger than or equal to the fuel dilution rate threshold, determining a target temperature according to at least one of the real-time rotating speed and the real-time torque of the engine; if the real-time fuel dilution rate is smaller than the fuel dilution rate threshold value, directly determining that the target temperature is a second target temperature;
when the real-time fuel dilution rate is greater than or equal to the fuel dilution rate threshold, determining a target temperature according to at least one of a real-time rotating speed and a real-time torque of the engine, and specifically comprising the following steps:
comparing the real-time rotating speed of the engine with a rotating speed preset value of the engine, comparing the real-time torque of the engine with a torque preset value of the engine, and if one of the real-time rotating speed of the engine and the real-time torque of the engine exceeds the corresponding preset value, the target temperature of the engine oil in the main oil gallery is a first target temperature; if the real-time rotating speed of the engine and the real-time torque of the engine do not exceed the corresponding preset values, the target temperature of the engine oil in the main oil gallery is the second target temperature; wherein the first target temperature is greater than the second target temperature.
S33, adjusting the opening of the electromagnetic valve according to the corresponding target temperature;
specifically, the PWM value may be determined according to empirical data or a corresponding relationship MAP (e.g., a full MAP calibration result MAP), and the opening degree of the solenoid valve may be controlled by the PWM value.
And S34, comparing the difference value between the real-time temperature of the engine oil in the main oil gallery and the corresponding target temperature with an allowable difference value range, and if the difference value between the real-time temperature and the target temperature is not in the allowable difference value range, adjusting the opening of the electromagnetic valve until the temperature control is finished when the difference value between the real-time temperature and the target temperature is in the allowable difference value range. And if the difference value between the real-time temperature and the target temperature is within the allowable difference value range, directly finishing the temperature control.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An oil temperature control method is characterized by comprising the following steps:
acquiring the real-time temperature of engine oil in a main oil duct;
comparing the difference value between the target temperature and the real-time temperature of the engine oil in the main oil gallery with an allowable difference value range, and if the difference value between the real-time temperature and the target temperature is not within the allowable difference value range, adjusting the opening degree of the electromagnetic valve until the difference value between the real-time temperature and the target temperature is within the allowable difference value range; wherein:
determining the target temperature comprises:
comparing the real-time fuel dilution rate of the engine oil in the oil pan with a fuel dilution rate threshold, and if the real-time fuel dilution rate is greater than or equal to the fuel dilution rate threshold, determining the target temperature according to at least one of the real-time rotating speed and the real-time torque of the engine; if the real-time fuel oil dilution rate is smaller than the fuel oil dilution rate threshold value, directly determining that the target temperature is a second target temperature;
comparing the real-time rotating speed with a rotating speed preset value of an engine, comparing the real-time torque with a torque preset value of the engine, and if one of the real-time rotating speed and the real-time torque exceeds the corresponding preset value, determining that the target temperature is a first target temperature; if the real-time rotating speed and the real-time torque do not exceed the corresponding preset values, the target temperature is the second target temperature;
the first target temperature is greater than the second target temperature.
2. The oil temperature control method according to claim 1, wherein the real-time fuel dilution ratio is: the ratio of the mass of fuel in the oil pan of the engine to the sum of the mass of fuel and the mass of engine oil in the oil pan.
3. The oil temperature control method according to claim 2, wherein the fuel quality is as follows in an oil change cycle: accumulating a difference between the mass of fuel entering the oil pan and the accumulated fuel evaporation amount.
4. The oil temperature control method according to claim 3, wherein the mass of fuel accumulated into the oil pan is: the product of the number of times of the fuel post-injection and the single post-injection amount of the fuel and the wall attachment rate of the fuel.
5. The oil temperature control method according to claim 2, characterized in that the oil quality is a lower limit value of the oil quality in the oil pan.
6. The oil temperature control device is characterized by comprising an electronic control unit, an electromagnetic valve, an oil cooler and an oil filter, wherein the electromagnetic valve is provided with an oil inlet and two oil outlets, the two oil outlets can be communicated with the oil inlet, and the oil outlet proportions of the two oil outlets are different when the opening degree of the electromagnetic valve is different;
an oil inlet of the electromagnetic valve is communicated with an oil outlet of the oil filter, one of two oil outlets of the electromagnetic valve is communicated with an oil inlet of the oil cooler and is communicated with the main oil duct through the oil cooler, and the other of the two oil outlets of the electromagnetic valve is directly communicated with the main oil duct; wherein the electronic control unit is used for executing the steps in the oil temperature control method according to any one of claims 1 to 5.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307778A (en) * | 2004-04-19 | 2005-11-04 | Mazda Motor Corp | Exhaust emission control device of engine |
| WO2006087489A1 (en) * | 2005-02-21 | 2006-08-24 | Peugeot Citroen Automobiles | System for reducing the quantity of diesel fuel in the lubricating oil of a motor vehicle diesel engine |
| CN104933226A (en) * | 2015-05-26 | 2015-09-23 | 奇瑞汽车股份有限公司 | Control and calculation method for engine oil temperature |
| CN105507983A (en) * | 2014-10-10 | 2016-04-20 | 福特环球技术公司 | Method for reducing engine oil dilution |
| CN206530377U (en) * | 2017-03-08 | 2017-09-29 | 玉柴联合动力股份有限公司 | A kind of lube oil cooler for diesel engine and its cooling system |
| CN109630231A (en) * | 2018-12-04 | 2019-04-16 | 潍柴动力股份有限公司 | A kind of solution and device of oil dilution |
| CN210033557U (en) * | 2018-12-30 | 2020-02-07 | 江西腾勒动力有限公司 | Engine oil cold and hot control structure |
| JP2020133535A (en) * | 2019-02-21 | 2020-08-31 | スズキ株式会社 | Control device for engine |
| CN112031890A (en) * | 2020-09-16 | 2020-12-04 | 潍柴动力股份有限公司 | Temperature adjusting method, device, system and electronic control unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9403427B2 (en) * | 2012-08-24 | 2016-08-02 | Ford Global Technologies, Llc | Method and system for oil dilution control |
-
2022
- 2022-04-02 CN CN202210349610.7A patent/CN114687831B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307778A (en) * | 2004-04-19 | 2005-11-04 | Mazda Motor Corp | Exhaust emission control device of engine |
| WO2006087489A1 (en) * | 2005-02-21 | 2006-08-24 | Peugeot Citroen Automobiles | System for reducing the quantity of diesel fuel in the lubricating oil of a motor vehicle diesel engine |
| CN105507983A (en) * | 2014-10-10 | 2016-04-20 | 福特环球技术公司 | Method for reducing engine oil dilution |
| CN104933226A (en) * | 2015-05-26 | 2015-09-23 | 奇瑞汽车股份有限公司 | Control and calculation method for engine oil temperature |
| CN206530377U (en) * | 2017-03-08 | 2017-09-29 | 玉柴联合动力股份有限公司 | A kind of lube oil cooler for diesel engine and its cooling system |
| CN109630231A (en) * | 2018-12-04 | 2019-04-16 | 潍柴动力股份有限公司 | A kind of solution and device of oil dilution |
| CN210033557U (en) * | 2018-12-30 | 2020-02-07 | 江西腾勒动力有限公司 | Engine oil cold and hot control structure |
| JP2020133535A (en) * | 2019-02-21 | 2020-08-31 | スズキ株式会社 | Control device for engine |
| CN112031890A (en) * | 2020-09-16 | 2020-12-04 | 潍柴动力股份有限公司 | Temperature adjusting method, device, system and electronic control unit |
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