CN111828160A - System and method for improving cooling effect of engine and vehicle comprising system - Google Patents
System and method for improving cooling effect of engine and vehicle comprising system Download PDFInfo
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- CN111828160A CN111828160A CN202010722203.7A CN202010722203A CN111828160A CN 111828160 A CN111828160 A CN 111828160A CN 202010722203 A CN202010722203 A CN 202010722203A CN 111828160 A CN111828160 A CN 111828160A
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- valve
- engine cooling
- cooling water
- ambient temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
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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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0437—Liquid cooled heat exchangers
- F02B29/0443—Layout of the coolant or refrigerant circuit
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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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0493—Controlling the air charge temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/13—Ambient temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an engine cooling system and method, the system includes: an engine cooling circuit connected to the engine; a charge air cooling circuit connected to the supercharger; a communication conduit system connecting the engine cooling circuit and the charge air cooling circuit, the communication conduit system including a valve; and a controller configured to control opening and closing of the valve according to an ambient temperature. Furthermore, the invention relates to a vehicle comprising the system. According to the invention, the water temperature of the engine cooling loop can be reduced under the working condition of overhigh ambient temperature or super-load of the engine, so that the application of the engine under the high-temperature environment or the super-load working condition is met; when the ambient temperature is too low and the rotating speed of the supercharger is low, the water temperature of the supercharged air cooling loop is increased, the supercharged air with too low temperature is further heated, the heated supercharged air participates in the combustion of the engine, and the combustion efficiency of the engine is improved.
Description
Technical Field
The invention relates to a system and a method for improving the cooling effect of an engine, in particular to a system and a method for improving the cooling effect of the engine by utilizing a charge air cooler and a vehicle comprising the system.
Background
An engine of a vehicle generates power using combustion of fuel, and a supercharger provides the engine with compressed air required for combustion. The engine needs to work within a certain body temperature range, so the engine needs to be cooled by a radiator and cooling water so as to control the body temperature within a certain range, and the engine is prevented from being out of order due to overhigh temperature.
The supercharger generates heat when compressing air, so that the temperature of the compressed air is increased, the supercharged air needs to be cooled by the intercooler, and then cooled by the radiator by the intercooler water, and the problem that the combustion efficiency of the engine is reduced due to the high temperature of the supercharged air is solved.
In the traditional engine cooling system, under the same altitude, the higher the ambient temperature is, the higher the heat dissipation capacity of the engine cooling circuit is, and the smaller or insufficient cooling allowance of the engine radiator is, so that more and larger radiators are needed. For example, at an ambient temperature of 25 ℃, the charge air cooling circuit dissipates the highest amount of heat, but as the ambient temperature increases, the amount of heat dissipated by the charge air cooling circuit decreases and the intercooling radiator cooling margin increases.
The traditional charge air cooling system has no active heating function to the charge air, and when the ambient temperature is extremely low and the rotating speed of the supercharger is low, the temperature of the charge air is also extremely low, so that the combustion efficiency of the engine is reduced.
Based on this, the prior art still remains to be improved.
Disclosure of Invention
In order to solve the technical problems, embodiments of the present invention provide a system and a method for improving an engine cooling effect by using a charge air cooler, and a vehicle using the engine cooling system, so as to solve the technical problems in the prior art that the engine cooling capacity is improved, the radiator space is occupied greatly, the design difficulty of a locomotive is large, and the combustion efficiency of an engine is low due to low charge air temperature.
In one aspect, an engine cooling system disclosed in an embodiment of the present invention includes:
an engine cooling circuit connected to the engine;
a charge air cooling circuit connected to the supercharger;
a communication conduit system connecting the engine cooling circuit and the charge air cooling circuit, the communication conduit system including a valve; and
a controller configured to control opening and closing of the valve as a function of ambient temperature.
In an embodiment of the invention, the communication line system comprises a first communication line and a second communication line and the valve comprises a first valve and a second valve, wherein the first valve is arranged in the first communication line and the second valve is arranged in the second communication line.
In an embodiment of the invention, the first communication line is connected between a low pressure side of the engine cooling circuit and a high pressure side of the charge air cooling circuit and the second communication line is connected between a high pressure side of the engine cooling circuit and a low pressure side of the charge air cooling circuit, the controller being configured to control the first valve to open in response to the ambient temperature being above a first threshold and to control the second valve to open in response to the ambient temperature being below a second threshold.
In an embodiment of the invention, the charge air cooling circuit comprises:
the intercooler is connected with the supercharger;
an intercooler cooling water inlet; and
and an intercooler cooling water outlet.
In an embodiment of the invention, the engine cooling circuit comprises an engine cooling water inlet and an engine cooling water outlet.
In an embodiment of the invention, the first valve is disposed between the intercooler cooling water outlet and the engine cooling water inlet, and the second valve is disposed between the intercooler cooling water inlet and the engine cooling water outlet.
In an embodiment of the invention, the controller is configured to control the first valve to open in response to the ambient temperature being above a first threshold.
In an embodiment of the invention, the controller is configured to control the second valve to open in response to the ambient temperature being below a second threshold.
In another aspect of the invention, a vehicle is provided that includes an engine cooling system according to an embodiment of the invention.
In still another aspect of the present invention, there is provided an engine cooling method including:
detecting an ambient temperature at which an engine having a supercharger operates;
controlling a first valve to open in response to the ambient temperature being above a first threshold; and
controlling the second valve to open in response to the ambient temperature being below a second threshold,
wherein the first valve is provided between an intercooler cooling water outlet of an intercooler connected to the supercharger and an engine cooling water inlet of the engine, and the second valve is provided between an intercooler cooling water inlet of the intercooler and an engine cooling water outlet of the engine.
By adopting the technical scheme, the invention at least has the following beneficial effects:
when the environment temperature is too high or the engine is in an overlarge load working condition, the water temperature of the cooling loop of the engine is reduced by exchanging the cooling water with high temperature in the cooling loop of the engine with the cooling water with low temperature in the cooling loop of the charge air, so that the application of the engine in a high-temperature environment or an overlarge load working condition is met; when the ambient temperature is too low and the rotating speed of the supercharger is low, the water temperature of the supercharged air cooling loop is increased by exchanging the cooling water with high temperature in the engine cooling loop with the cooling water with low temperature in the supercharged air cooling loop, so that the supercharged air with too low temperature is heated, the heated supercharged air participates in the combustion of the engine, and the combustion efficiency of the engine is improved.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of a vehicle according to an embodiment of the present invention.
FIG. 2 is a schematic illustration of an engine cooling system according to an embodiment of the present invention.
FIG. 3 is a flow chart of an engine cooling method according to the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
The vehicle 500 referred to in the following embodiments may be a locomotive for the operation of a traction or push railway vehicle, a standard gasoline powered vehicle, a hybrid vehicle and/or any other type of vehicle, and may also be a bus, a marine vessel or an aircraft.
According to a first aspect of the invention, a vehicle 500 is provided, the vehicle 500 comprising an engine cooling system 100 as described elsewhere herein and a controller 105 in communication with the engine cooling system 100, as shown in fig. 1. The vehicle 500 may also include a temperature sensor 110, and the temperature sensor 110 may sense an ambient temperature, for example, when the engine cooling system 100 is operating.
According to a second aspect of the present invention, there is provided an engine cooling system 100, which may include: an engine cooling circuit 101 connected to the engine 1; a charge air cooling circuit 102 connected to the supercharger 5; a communication pipe system 103 connecting the engine cooling circuit 101 and the charge air cooling circuit 102, the communication pipe system 103 including a valve 104; and a controller 105, the controller 105 may be configured to control opening and closing of the valve 104 according to an ambient temperature.
In the embodiment of the invention shown in fig. 2, the engine cooling circuit 101 may comprise a water pump 2, a radiator 3 and a pipe 4 connecting the two and constituting a closed circuit. The conduit 4 may comprise an engine cooling water inlet 106, an engine cooling water outlet 107, and cooling water may enter and exit the engine 1 through the engine cooling water inlet 106 and the engine cooling water outlet 107, respectively. The water pump 2 may be provided between the engine cooling water inlet 106 and the radiator 3, and the water pump 2 may be a mechanical or electric water pump commonly used in the art. The radiator 3 may be an engine radiator as is commonly used in the art. Between the radiator 3 and the engine 1, a cooling fan 15 may be provided, and the cooling fan 15 may increase the flow rate and flow rate of air flowing through the radiator 3 to enhance the heat radiation capability of the radiator 3. In some embodiments of the invention, the cooling fan 15 may be driven coaxially with the water pump 2, and the cooling fan 15 may be fixed to a pulley or a flange plate at the front end of the shaft of the water pump 2, for example, by a tool such as a screw. When the engine 1 is running, the water pump 2 starts rotating to increase the cooling water pressure, thereby causing the cooling water to circulate in the engine cooling circuit 101 in, for example, the direction indicated by the arrow. The circulating cooling water carries away heat generated by the engine 1 and its components (e.g., engine block, cylinder liner, etc.).
The charge air cooling circuit 102 may comprise an intercooler 6, a water pump 8, a radiator 7 and a line 9 connecting them. The intercooler 6 may be connected to the supercharger 5, and configured to reduce the temperature of the high-temperature air supercharged by the supercharger 5, so as to reduce the heat load of the engine 1, increase the intake air amount, and further increase the power of the engine 1. Line 9 may include an intercooler cooling water inlet 108 and an intercooler cooling water outlet 109, with cooling water entering and exiting the intercooler 6 through the intercooler cooling water inlet 108 and intercooler cooling water outlet 109, respectively. The water pump 8 may be provided between the intercooler cooling water inlet 108 and the radiator 7, and the water pump 8 may be a mechanical or electric water pump commonly used in the art. The heat sink 7 may be a heat sink commonly used in the art. Between the radiator 7 and the intercooler 6, preferably adjacent to the radiator 7, a cooling fan 14 may be provided, and the cooling fan 14 may increase the flow rate and quantity of air flowing through the radiator 7 to enhance the heat dissipation capability of the radiator 7.
The supercharger 5 may be provided in an exhaust line of the engine 1 and may be driven by exhaust gas discharged from the engine 1. The flow path of the air is shown by the dotted line in fig. 2, and flows in the direction of the arrow. Specifically, after the air enters the supercharger 5 and is supercharged therein, the supercharged air enters the intercooler 6 to be cooled by the charge air cooling circuit 102, and the cooled air enters the engine 1 to be combusted. Exhaust gas after combustion by the engine 1 is discharged into the exhaust line and drives a supercharger 5 provided in the exhaust line. And finally, discharging the waste gas out of the exhaust pipeline.
The communication line system 103 may include a first communication line 10 and a second communication line 12, and the valve 104 may include a first valve 11 and a second valve 13, wherein the first valve 11 is disposed in the first communication line 10 and the second valve 13 is disposed in the second communication line 12. In the embodiment shown in fig. 2, the first valve 11 may be disposed between the intercooler cooling water outlet 109 and the engine cooling water inlet 106, and the water pump 2 may be disposed between the engine cooling water inlet 106 and the first valve 11. The second valve 13 may be disposed between the intercooler cooling water inlet 108 and the engine cooling water outlet 107, and the water pump 8 may be disposed between the intercooler cooling water inlet 108 and the second valve 13.
Changes in the ambient temperature can have an effect on the cooling effectiveness of the engine cooling system 100. Taking a certain vehicle type as an example, the heat dissipation capacity of an engine adopted at the ambient temperature of 25 ℃ is 2180kW, and at the moment, the heat dissipation capacity of a charge air intercooler is 375 kW; when the ambient temperature is 40 ℃, the heat dissipation capacity of the engine is 2230kW, and the heat dissipation capacity of the charge air intercooler is 264 kW; when the ambient temperature is 50 ℃, the heat dissipation capacity of the engine is 2256kW, and the heat dissipation capacity of the charge air intercooler is 206 kW. Thus, the higher the ambient temperature, the higher the heat dissipated by the engine cooling circuit, and the less or less engine radiator cooling is left, requiring more and larger radiators. However, more and larger heat sinks means more packaging volume and more cost, and in practice it is not possible to replace heat sinks of corresponding volume in real time according to the ambient temperature.
The inventors of the present invention have found that it is feasible to utilize a charge air radiator to assist engine heat dissipation at high temperatures. In an embodiment of the present invention, the temperature sensor 110 may detect in real time the ambient temperature at which the engine cooling system is operating and periodically send the detected temperature to the controller 105. The controller 105 stores these data in its memory, and when the ambient temperature is higher than a certain set threshold (for example, higher than 40 ℃), the controller 105 controls the first valve 11 to open, so that the cooling water with lower temperature leaving the intercooler cooling water outlet 109 flows into the engine cooling circuit 101 through the first communication pipe 10, and exchanges with the cooling water with higher temperature in the engine cooling circuit 101, so that the water temperature in the engine cooling circuit 101 is reduced, and the cooling requirement of the engine 1 operating in a high-temperature environment is met.
In another embodiment of the present invention, the controller 105 may also control the first valve 11 to open under other conditions, such as a large load of the engine 1, so as to reduce the water temperature of the engine cooling circuit 101, thereby satisfying the operation of the engine 1 under the condition of an excessive load.
On the other hand, when the ambient temperature is low, the temperature of the charge air is also low, which affects the combustion efficiency of the engine 1. In this regard, in the embodiment of the present invention, when it is detected that the ambient temperature is lower than a certain set threshold (for example, -30 ℃), the controller 105 may control the second valve 13 to open, so that the cooling water with higher temperature flowing out from the engine cooling water outlet 107 flows into the charge air cooling circuit 102 through the second communication pipe 12, and exchanges with the cooling water with lower temperature in the charge air cooling circuit 102, so that the water temperature of the cooling water in the charge air cooling circuit 102 is increased, and the charge air with lower temperature is heated, and the heated charge air participates in the combustion of the engine, thereby improving the combustion efficiency of the engine 1.
Example 1
Taking a certain vehicle type as an example, when the ambient temperature is 25 ℃, the heat dissipation capacity of the supercharged air cooling circuit is the highest, and the engine radiator can only meet the heat dissipation capacity 2230kW when the ambient temperature is 40 ℃. As the ambient temperature increases, the amount of heat dissipated by the charge air cooling circuit decreases.
When the ambient temperature exceeds 40 ℃, a communication pipeline (such as the first communication pipeline 10) between the engine cooling circuit and the charge air cooling circuit is opened, and after cooling water is exchanged, the water temperature of the engine cooling circuit is reduced, so that the heat dissipation capacity 2256kW at the ambient temperature of 50 ℃ can be met, and the vehicle can normally work at the ambient temperature of 50 ℃ without the engine failing. Meanwhile, the engine radiator only needs to meet the size of 40 ℃ of ambient temperature, and the space size and the cost of the radiator are saved.
Example 2
Taking a certain vehicle model as an example, when the ambient temperature is below-30 ℃, the temperature of the supercharged air is only 0 ℃ when the engine is idling, namely, the ambient temperature and the temperature of the supercharged air are both low, and the rotating speed of the supercharger is low. At this time, the communication line (for example, the second communication line 13) between the engine cooling circuit and the charge air cooling circuit is automatically opened, and after the exchange of the cooling water, the water temperature of the charge air cooling circuit rises to 20 ℃ or higher, so that the combustion efficiency of the engine is higher.
It should be understood by those skilled in the art that while the relative arrangement of the various circuits and components in the engine cooling system 100 is shown in FIG. 2, the drawings are shown in a schematic manner and that other arrangements that are within the spirit of the invention are also within the scope of the invention. For example, although the water pump 2 is shown as being located between the engine cooling water inlet and the connection point of the first communication pipe 10 and the engine cooling circuit 101, the pump 2 may be located at a position between the connection point and the radiator 3.
In another embodiment of the present invention, the engine cooling circuit may include a high pressure side and a low pressure side, and the charge air cooling circuit may also include a high pressure side and a low pressure side. In this case, the first communication line according to the invention may be connected between the low-pressure side of the engine cooling circuit and the high-pressure side of the charge air cooling circuit, and the second communication line may be connected between the high-pressure side of the engine cooling circuit and the low-pressure side of the charge air cooling circuit. When the ambient temperature is higher than a certain set threshold value, the controller can control the first valve of the first communication pipeline to be opened; when the ambient temperature is lower than a set threshold, the controller may control the second valve of the second communication line to open.
The engine cooling loop and the charge air cooling loop can be two originally independent cooling systems, each cooling system consists of a heat source (an engine or a supercharger), a radiator and a water pump, and the pressure of the high-temperature water outlet pipe is higher than that of the low-temperature water inlet pipe. The water pump is used for providing pressure for the cooling water to enable the cooling water to flow, but the pressure of the cooling water is gradually reduced due to system resistance, so that the pressure of the cooling water is lower before the cooling water enters the water pump, and the pressure of the cooling water is increased after the cooling water passes through the water pump. In the embodiment of the invention, the first communication pipe 10 connects the pre-pump node (i.e., the low pressure side) of the engine cooling circuit 101 with the post-pump node (i.e., the high pressure side) of the supercharger cooling circuit 102, and after the first valve 11 is opened, the cooling water flows from the high pressure side to the low pressure side; the second communication pipe 12 connects a post-pump node (i.e., a high-pressure side) of the engine cooling circuit 101 and a pre-pump node (i.e., a low-pressure side) of the supercharger cooling circuit 102, and the cooling water flows from the high-pressure side to the low-pressure side after the second valve 13 is opened. Because the volumes of the cooling water of the two independent circulating systems are conserved, the same amount of low-temperature cooling water enters the high-temperature cooling water system, and the water volumes of the high-temperature cooling water system and the low-temperature cooling water system are ensured to be basically unchanged.
According to a third aspect of the present invention, there is provided an engine cooling method, as shown in fig. 3, comprising: detecting an ambient temperature at which an engine having a supercharger operates; controlling a first valve to open in response to the ambient temperature being above a first threshold; and controlling the second valve to open in response to the ambient temperature being below a second threshold.
In an embodiment of the invention, the first valve may be a first valve as shown in the above embodiment and disposed between a intercooler cooling water outlet of an intercooler connected to the supercharger and an engine cooling water inlet of the engine, and the second valve may be a second valve as shown in the above embodiment and disposed between the intercooler cooling water inlet of the intercooler and the engine cooling water outlet of the engine.
According to the invention, the water temperature of the engine cooling loop can be reduced under the working condition of overhigh ambient temperature or super-load of the engine, so that the application of the engine under the high-temperature environment or the super-load working condition is met; when the ambient temperature is too low and the rotating speed of the supercharger is low, the water temperature of the supercharged air cooling loop is increased, the supercharged air with too low temperature is further heated, the heated supercharged air participates in the combustion of the engine, and the combustion efficiency of the engine is improved.
It should be particularly noted that the various components or steps in the above embodiments can be mutually intersected, replaced, added or deleted, and therefore, the combination formed by the reasonable permutation and combination conversion shall also belong to the protection scope of the present invention, and the protection scope of the present invention shall not be limited to the embodiments.
The above is an exemplary embodiment of the present disclosure, and the order of disclosure of the above embodiment of the present disclosure is only for description and does not represent the merits of the embodiment. It should be noted that the discussion of any embodiment above is exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to those examples, and that various changes and modifications may be made without departing from the scope, as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. An engine cooling system, comprising:
an engine cooling circuit connected to the engine;
a charge air cooling circuit connected to the supercharger;
a communication conduit system connecting the engine cooling circuit and the charge air cooling circuit, the communication conduit system including a valve; and
a controller configured to control opening and closing of the valve as a function of ambient temperature.
2. The engine cooling system of claim 1, wherein the communication line system includes a first communication line and a second communication line and the valve includes a first valve and a second valve, wherein the first valve is disposed in the first communication line and the second valve is disposed in the second communication line.
3. The engine cooling system of claim 2, wherein the first communication line is connected between a low pressure side of the engine cooling circuit and a high pressure side of the charge air cooling circuit and the second communication line is connected between a high pressure side of the engine cooling circuit and a low pressure side of the charge air cooling circuit, the controller configured to control the first valve to open in response to the ambient temperature being above a first threshold and to control the second valve to open in response to the ambient temperature being below a second threshold.
4. Engine cooling system according to claim 2, characterized in that the charge air cooling circuit comprises:
the intercooler is connected with the supercharger;
an intercooler cooling water inlet; and
and an intercooler cooling water outlet.
5. Engine cooling system according to claim 4, characterized in that the engine cooling circuit comprises an engine cooling water inlet and an engine cooling water outlet.
6. The engine cooling system according to claim 5, characterized in that the first valve is disposed between the intercooler cooling water outlet and the engine cooling water inlet, and the second valve is disposed between the intercooler cooling water inlet and the engine cooling water outlet.
7. The engine cooling system of claim 6, wherein the controller is configured to control the first valve to open in response to the ambient temperature being above a first threshold.
8. The engine cooling system of claim 6, wherein the controller is configured to control the second valve to open in response to the ambient temperature being below a second threshold.
9. A vehicle characterized by comprising the engine cooling system of any one of the preceding claims 1-8.
10. An engine cooling method, comprising:
detecting an ambient temperature at which an engine having a supercharger operates;
controlling a first valve to open in response to the ambient temperature being above a first threshold; and
controlling the second valve to open in response to the ambient temperature being below a second threshold,
wherein the first valve is provided between an intercooler cooling water outlet of an intercooler connected to the supercharger and an engine cooling water inlet of the engine, and the second valve is provided between an intercooler cooling water inlet of the intercooler and an engine cooling water outlet of the engine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010722203.7A CN111828160B (en) | 2020-07-24 | 2020-07-24 | System and method for improving cooling effect of engine and vehicle comprising system |
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| CN202010722203.7A CN111828160B (en) | 2020-07-24 | 2020-07-24 | System and method for improving cooling effect of engine and vehicle comprising system |
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| CN111828160A true CN111828160A (en) | 2020-10-27 |
| CN111828160B CN111828160B (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179591A (en) * | 2021-12-30 | 2022-03-15 | 上海洛轲智能科技有限公司 | Vehicle with a steering wheel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106150658A (en) * | 2016-08-29 | 2016-11-23 | 中车大连机车车辆有限公司 | Cooling control method in diesel engine of diesel locomotive cooling water system separate type |
| CN107288734A (en) * | 2017-08-17 | 2017-10-24 | 东风贝洱热***有限公司 | Heavy duty diesel engine high/low temperature cooling system and cooling circuit |
| CN209340025U (en) * | 2019-01-10 | 2019-09-03 | 北京汽车动力总成有限公司 | A kind of engine-cooling system and vehicle |
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2020
- 2020-07-24 CN CN202010722203.7A patent/CN111828160B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150658A (en) * | 2016-08-29 | 2016-11-23 | 中车大连机车车辆有限公司 | Cooling control method in diesel engine of diesel locomotive cooling water system separate type |
| CN107288734A (en) * | 2017-08-17 | 2017-10-24 | 东风贝洱热***有限公司 | Heavy duty diesel engine high/low temperature cooling system and cooling circuit |
| CN209340025U (en) * | 2019-01-10 | 2019-09-03 | 北京汽车动力总成有限公司 | A kind of engine-cooling system and vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114179591A (en) * | 2021-12-30 | 2022-03-15 | 上海洛轲智能科技有限公司 | Vehicle with a steering wheel |
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| CN111828160B (en) | 2021-10-08 |
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