CN115750129B - Cylinder structure, vehicle cooling system, control method of cooling system and vehicle - Google Patents

Abstract

The application provides a cylinder structure, a vehicle cooling system, a control method of the cooling system and a vehicle. The cylinder structure includes: the cylinder body, the cylinder body has a plurality of working chambers, and the periphery of each working chamber all sets up a plurality of ring channels, is provided with the intercommunication passageway between the adjacent ring channel, is provided with first thermostat in the intercommunication passageway, and first thermostat has the closed position with the intercommunication passageway closed so that adjacent ring channel disconnection. The cylinder body is provided with a plurality of working chambers, a plurality of annular grooves are arranged at intervals in the radial direction of the working chambers and used for containing cooling liquid, a first thermostat is arranged in a communication channel between adjacent annular grooves, and the first thermostat is provided with a closing position for closing the communication channel so as to disconnect the adjacent annular grooves. The engine can quickly enter a heat engine running state in colder weather, so that the running time of the engine cold engine can be greatly shortened, and the oil consumption and the emission level of the engine after cold start can be effectively improved.

Description

Cylinder structure, vehicle cooling system, control method of cooling system and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a cylinder structure, a vehicle cooling system, a control method of the cooling system and a vehicle.

Background

In the cold start stage, the engine combustion state is poor due to the low engine body temperature and water temperature, so that the oil consumption and emission are far higher than the thermal state level of the engine. The method aims to improve the cold start oil consumption and emission of the engine, shorten the working time of the cold start stage of the engine and accelerate the temperature rise speed of the cooling liquid, thereby being an effective improvement way.

Disclosure of Invention

The invention mainly aims to provide a cylinder structure, a vehicle cooling system, a control method of the cooling system and a vehicle, so as to solve the problem of poor combustion state of an engine when the engine is started in winter in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a cylinder structure including: the cylinder body, the cylinder body has a plurality of working chambers, and the periphery of each working chamber all sets up a plurality of ring channels, and a plurality of ring channels are used for holding the coolant liquid, and a plurality of ring channels set up along the radial direction interval of working chamber, are provided with the intercommunication passageway between the adjacent ring channel, are provided with first thermostat in the intercommunication passageway, and first thermostat has the open position that opens in order to make adjacent ring channel intercommunication to and first thermostat has the closed position that closes the intercommunication passageway in order to make adjacent ring channel disconnection.

Further, the depth direction of each annular groove is provided to extend in the axial direction of the working chamber.

Further, the number of the annular grooves is two, a separation part is formed between the two annular grooves, the communication channel is formed on the separation part, and the first thermostat is connected with the separation part and is positioned in the communication channel.

Further, at least one sand cleaning hole is formed in the side wall of the isolation part and the side wall of the annular groove positioned at the outermost side of the working cavity.

Further, the annular grooves corresponding to the working chambers are independently arranged, or the annular grooves corresponding to the adjacent working chambers are communicated.

According to another aspect of the present invention, there is provided a vehicle cooling system including a cylinder structure, the cylinder structure being the cylinder structure described above.

Further, the vehicle cooling system includes: an engine provided with a cylinder structure; the inlet end of the first water pump is communicated with the outlet end of the engine; the inlet end of the heat preservation box is communicated with the outlet end of the first water pump, and the outlet end of the heat preservation box is communicated with the inlet end of the engine through a first valve.

Further, the vehicle cooling system includes: the inlet end of the whole car radiator is communicated with the outlet end of the engine, and the outlet end of the whole car radiator is communicated with the inlet end of the engine through a second water pump; the warm braw radiator, the entrance point of warm braw radiator and the exit end intercommunication setting of engine, the exit end of warm braw radiator and the entrance point intercommunication setting of second water pump, and warm braw radiator and whole car radiator set up in parallel, wherein, be provided with temperature sensor between the entrance point of first water pump and engine, the entrance point of intercommunication whole car radiator and the entrance point of warm braw radiator, and be provided with first bleed valve and second valve on the pipeline of engine entrance point, be provided with the second thermostat on the pipeline of the entrance point of whole car radiator, the second thermostat is established ties with whole car radiator and is set up.

According to another aspect of the present invention, there is provided a control method of a vehicle cooling system for controlling the vehicle cooling system, the vehicle cooling system being the above-described vehicle cooling system, the control method including the steps of: acquiring the environment temperature of starting the vehicle, and judging whether the current temperature is a low-temperature working condition according to the environment temperature; under the condition that the current temperature is determined to be in a low-temperature working condition, the first valve is controlled to be opened, the second valve is controlled to be closed, and the first water pump is controlled to be started; and acquiring a temperature value of the temperature sensor, and controlling the second valve to be opened and the first valve to be closed under the condition that the temperature value of the temperature sensor is larger than or equal to a first preset value.

Further, the control method further includes: under the condition that the temperature value of the temperature sensor is lower than a first preset value, controlling a first water pump to drive water in the heat insulation box into the engine so as to cool the cylinder structure; acquiring a temperature value of a first thermostat of the air cylinder structure, and controlling the first thermostat to be at a closed position under the condition that the temperature value of the first thermostat is lower than a second preset value; and controlling the first thermostat to be in the open position under the condition that the temperature value of the first thermostat is detected to be greater than or equal to a second preset value.

Further, the control method further includes: acquiring temperature information of a temperature sensor, determining a third preset value of temperature rise of the cooling liquid based on the temperature information, and controlling the second valve to be opened, the first valve to be closed and the second water pump to be started; when the temperature of the cooling liquid rises by a third preset value and the current temperature of the cooling liquid is lower than the first preset value, controlling the second thermostat to be in a closed state so that the cooling liquid flows into a warm air radiator, a second water pump and a cylinder structure of the engine in sequence; and controlling the second thermostat to be in an open state under the condition that the temperature of the cooling liquid rises by a third preset value and the current temperature of the cooling liquid is greater than or equal to the first preset value.

Further, the control method further includes: when the engine is detected to be in a flameout and stop state, the second valve is controlled to be closed, the first valve is controlled to be opened, and the second water pump is started; detecting the liquid level height in the insulation can, and controlling the second water pump to stop working under the condition that the liquid level height meets the preset condition.

According to another aspect of the present invention, there is provided a vehicle including a vehicle cooling system, the vehicle cooling system being the vehicle cooling system described above.

By applying the technical scheme of the invention, the cylinder body is provided with a plurality of working cavities, a plurality of annular grooves are arranged at intervals in the radial direction of the working cavities and used for containing cooling liquid, a first thermostat is arranged in a communication channel between adjacent annular grooves, and the first thermostat is provided with a closing position for closing the communication channel so as to disconnect the adjacent annular grooves. The engine can quickly enter a heat engine running state in colder weather, so that the running time of the engine cold engine can be greatly shortened, and the oil consumption and the emission level of the engine after cold start can be effectively improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

fig. 1 shows a schematic structural view of a first embodiment of a cylinder structure according to the present invention;

FIG. 2 shows a schematic structural view of a first embodiment of a vehicle cooling system according to the present invention;

Fig. 3 shows a flow chart of a control method of a vehicle cooling system according to the invention.

Wherein the above figures include the following reference numerals:

10. a cylinder; 11. a working chamber; 12. an isolation part; 13. thermostat mounting process hole

20. An annular groove;

30. A communication passage;

40. A first thermostat;

50. Sand removing holes;

61. an engine; 62. a first water pump; 63. an insulation box; 64. a first valve; 65. a liquid level sensor; 66. a heat preservation system air release valve;

71. A radiator of the whole vehicle; 72. a second water pump; 73. a warm air radiator; 74. a temperature sensor; 75. a first bleed valve; 76. a second valve; 77. a second thermostat.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.

Referring to fig. 1 to 3, a cylinder structure is provided according to an embodiment of the present application.

Specifically, the cylinder structure includes: the cylinder block 10, the cylinder block 10 has a plurality of working chambers 11, each working chamber 11 has a plurality of annular grooves 20 provided at an outer periphery thereof, the plurality of annular grooves 20 are for accommodating a coolant, the plurality of annular grooves 20 are provided at intervals in a radial direction of the working chamber 11, a communication passage 30 is provided between adjacent annular grooves 20, a first thermostat 40 is provided in the communication passage 30, the first thermostat 40 has an open position that opens to allow the adjacent annular grooves 20 to communicate, and the first thermostat 40 has a closed position that closes the communication passage 30 to disconnect the adjacent annular grooves 20.

In this embodiment, the cylinder is provided with a plurality of working chambers, and a plurality of annular grooves are provided at intervals in the radial direction of the working chambers for accommodating the coolant, a first thermostat is provided in the communication passage between adjacent annular grooves, and the first thermostat has a closed position that closes the communication passage to disconnect the adjacent annular grooves. The engine can quickly enter a heat engine running state in colder weather, so that the running time of the engine cold engine can be greatly shortened, and the oil consumption and the emission level of the engine after cold start can be effectively improved.

Further, the depth direction of each annular groove 20 is provided to extend in the axial direction of the working chamber 11. The annular groove can be tightly attached to the working cavity, so that the working cavity can be conveniently cooled or heated rapidly.

Specifically, the number of annular grooves 20 is two, a partition 12 is formed between the two annular grooves 20, a communication channel 30 is opened on the partition 12, and a first thermostat 40 is connected with the partition 12 and is located in the communication channel 30. This arrangement allows the annular groove to be provided independently of the first thermostat 40 via the partition 12. The engine in the initial stage of cold start only needs to heat the cooling liquid in one annular groove, and the effect of rapid temperature rise of the engine is achieved.

Further, at least one sand cleaning hole 50 is formed in the side wall of the isolation part 12 and the annular groove 20 located at the outermost side of the working chamber 11. In this embodiment, each annular groove in the cylinder body is cast with the cylinder body, and each cylinder on the air inlet side and the air outlet side of the annular groove is provided with 2 sand cleaning holes 50, and after the finished product processing of the cylinder body is completed, the sand cleaning holes are blocked by bowl-shaped plugs, so that the assembly manufacturability of the bowl-shaped plugs can be ensured, and the diameter of the sand cleaning holes in the inner cavity of the cylinder body is smaller than that of the sand cleaning holes in the outer cavity of the cylinder body. The outer wall surface of the cylinder body is also provided with a thermostat mounting process hole 13, so that the manufacturability of the cylinder body mounting is ensured, and casting residues in the water jacket after casting are conveniently cleaned.

As shown in fig. 1, the annular grooves 20 corresponding to the respective working chambers 11 are provided independently, or the annular grooves 20 corresponding to the adjacent working chambers 11 are provided in communication. In the embodiment, the adjacent annular grooves in the cylinder body can divide the cooling liquid in the cylinder body into two parts, and the engine only needs to heat the cooling liquid in the annular groove in the cylinder body in the initial stage of cold start, so that the rapid temperature rise of the engine is realized; the two water jackets can be communicated or separated through the first thermostat in the cylinder body, when the first thermostat in the cylinder body is closed, the inner annular water tank in the cylinder body and the outer annular water tank in the cylinder body are relatively independent, cooling liquid in the two annular water tanks cannot circulate mutually, and when the first thermostat in the cylinder body is opened, the inner annular water tank in the cylinder body and the outer annular water tank in the cylinder body are communicated through the first thermostat in the cylinder body, and the cooling liquid in the two annular water tanks can flow through the channel of the first thermostat in the cylinder body. The purposes of shortening the working time of the engine cooler and improving the oil consumption and the emission of the engine are achieved.

In another embodiment of the present application, a vehicle cooling system is provided, including a cylinder structure, where the cylinder structure is the cylinder structure described above.

As shown in fig. 2, includes: an engine 61, the engine 61 being provided with a cylinder structure; a first water pump 62, an inlet end of the first water pump 62 being communicated with an outlet end of the engine 61; the incubator 63, the inlet end of incubator 63 communicates with the exit end of first water pump 62, and the exit end of incubator 63 communicates with the inlet end of engine 61 through first valve 64. In this embodiment, the cooling liquid insulation system i has an independent circulation path, the cooling liquid in the insulation system can not be influenced by the large circulation cooling system ii, the cooling liquid circulation is realized by driving the first water pump 9 alone, the temperature sensor 74 is arranged in the system, the temperature of the cooling liquid of the engine can be monitored in real time, the cooling system can control the switch of the path through the first valve 64, the cooling system further comprises an insulation box 63, the insulation box 63 can store the cooling liquid with higher temperature so as to reduce the cooling speed of the cooling liquid, the liquid level sensor 65 is arranged in the insulation box 63, the liquid level of the cooling liquid in the insulation box can be monitored in real time, and when the liquid level in the insulation box is higher than a certain level or lower than a certain level, the system stops running so as to ensure the normal operation of the system. The heat preservation box 63 is internally provided with a heat preservation system air release valve 66 at the same time, and the air pressure balance in the heat preservation box is realized through the release and compensation of air. The cooling speed of the cooling liquid is effectively reduced, so that the engine can quickly enter a heat engine state, the working time of the engine cooler is shortened, and the combustion of the engine is effectively improved.

Further, the vehicle cooling system includes: the inlet end of the whole vehicle radiator 71 is communicated with the outlet end of the engine 61, and the outlet end of the whole vehicle radiator 71 is communicated with the inlet end of the engine 61 through a second water pump 72; the warm air radiator 73, the entrance point of the warm air radiator 73 is communicated with the exit end of the engine 61, the exit end of the warm air radiator 73 is communicated with the entrance point of the second water pump 72, and the warm air radiator 73 is parallel to the whole car radiator 71, wherein a temperature sensor 74 is arranged between the first water pump 62 and the entrance point of the engine 61, the entrance point of the whole car radiator 71 and the entrance point of the warm air radiator 73 are communicated, a first air release valve 75 and a second valve 76 are arranged on a pipeline of the entrance point of the engine 61, a second thermostat 77 is arranged on a pipeline of the entrance point of the whole car radiator 71, and the second thermostat 77 is connected with the whole car radiator 71 in series. In this embodiment, as shown in fig. 2, the large circulation cooling system ii is also provided with an independent circulation passage, and the system is composed of a radiator passage and a warm air passage of the whole vehicle, and corresponding other passages can be added according to the thermal management requirements of different vehicle types, the whole large circulation cooling system is controlled to be on-off by a second valve 76, a second thermostat 77 is arranged in the system, when the cooling liquid in the channel reaches a certain preset temperature, the second thermostat 77 is opened, the cooling liquid can start to flow in the passages, and conversely, the cooling liquid flow is blocked. The warm air passage is not affected by the opening and closing of the second thermostat 77, and the warm air passage can circulate as long as the first air release valve 75 is opened. The arrangement ensures that the engine can quickly enter a heat engine state after cold start, shortens the working time of the engine cold machine and effectively improves the combustion efficiency of the engine.

In another embodiment of the present application, there is also provided a control method of a vehicle cooling system, as shown in fig. 3, for controlling the vehicle cooling system, the vehicle cooling system being the vehicle cooling system according to any one of claims 6 to 8, the control method including the steps of: step S01, acquiring the environment temperature of starting the vehicle, and judging whether the current temperature is a low-temperature working condition according to the environment temperature; step S02, under the condition that the current temperature is determined to be in a low-temperature working condition, the first valve 64 is controlled to be opened, the second valve 76 is controlled to be closed, and the first water pump 62 is controlled to be started; in step S03, a temperature value of the temperature sensor 74 is obtained, and when the temperature value of the temperature sensor 74 is greater than or equal to the first preset value, the second valve 76 is controlled to be opened and the first valve 64 is controlled to be closed. The arrangement ensures that the engine can quickly enter a heat engine state after cold start, shortens the working time of the engine cold machine and effectively improves the combustion of the engine.

Further, the control method further includes: when the temperature value of the temperature sensor 74 is lower than a first preset value, the first water pump 62 is controlled to drive water in the heat preservation box 63 into the engine 61 so as to cool the cylinder structure; acquiring a temperature value of a first thermostat 40 of the cylinder structure, and controlling the first thermostat 40 to be in a closed position under the condition that the temperature value of the first thermostat 40 is lower than a second preset value; in the case where the temperature value of the first thermostat 40 is detected to be greater than or equal to the second preset value, the first thermostat 40 is controlled to be in the open position. The arrangement is that when the external temperature is too low, the two annular grooves can be independently arranged to be cooled by using the cooling liquid with higher temperature in the heat preservation box, so that the vehicle can detect the first thermostat according to the external temperature, and the first thermostat is selected to be opened according to the detected temperature, thereby effectively improving the combustion efficiency of the engine and shortening the working time of the engine cooler.

Specifically, the control method further includes: temperature information of the temperature sensor 74 is collected, after the temperature of the cooling liquid rises by a third preset value based on the temperature information, the second valve 76 is controlled to be opened, the first valve 64 is closed, and the second water pump 72 is started; in the case where it is determined that the temperature of the coolant rises by the third preset value and the current temperature of the coolant is lower than the first preset value, the second thermostat 77 is controlled to be in a closed state so that the coolant flows into the warm air radiator 73, the second water pump 72, and the cylinder structure of the engine 61 in this order; in the case where it is determined that the temperature of the coolant rises by the third preset value and the current temperature of the coolant is greater than or equal to the first preset value, the second thermostat 77 is controlled to be in the open state. In this embodiment, the temperature sensor 74 reads the temperature of the cooling fluid in the engine, after the temperature rises to a certain preset value, the second valve 76 is opened, the first valve 64 is closed, the second water pump 72 is started, the cooling fluid of the engine enters the large circulation cooling system ii, before the temperature of the cooling fluid in the circulation does not reach the designated temperature, the second thermostat 77 is closed, the cooling fluid only flows into the warm air passage, flows through the warm air radiator 73, and then enters the cylinder body of the engine through the second water pump 72. Thus, the fuel consumption and the emission level of the engine are effectively improved.

Further, the control method further includes: in the case that the engine 61 is detected to be in a flameout and stop state, the second valve 76 is controlled to be closed, the first valve 64 is controlled to be opened, and the second water pump 72 is started; the liquid level in the incubator 63 is detected, and the second water pump 72 is controlled to stop operation if the liquid level satisfies a preset condition. The arrangement prevents damage caused by excessive cooling liquid in the insulation can, and plays a role in protecting the engine.

In another embodiment of the present application, a vehicle is provided, including a vehicle cooling system, where the vehicle cooling system is the vehicle cooling system described above.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A control method of a vehicle cooling system, characterized by comprising the steps of:

Acquiring the environment temperature of starting a vehicle, and judging whether the current temperature is a low-temperature working condition according to the environment temperature;

Under the condition that the current temperature is determined to be the low-temperature working condition, the first valve (64) is controlled to be opened, the second valve (76) is controlled to be closed, and the first water pump (62) is started;

Acquiring a temperature value of a temperature sensor (74), and controlling the second valve (76) to be opened and the first valve (64) to be closed under the condition that the temperature value of the temperature sensor (74) is larger than or equal to a first preset value;

controlling the first water pump (62) to drive water in the heat preservation box (63) into the engine (61) under the condition that the temperature value of the temperature sensor (74) is lower than the first preset value so as to cool the cylinder structure;

Acquiring a temperature value of a first thermostat (40) of the cylinder structure, and controlling the first thermostat (40) to be in a closed position under the condition that the temperature value of the first thermostat (40) is lower than a second preset value;

controlling the first thermostat (40) to be in an open position, if the temperature value of the first thermostat (40) is detected to be greater than or equal to the second preset value;

The cylinder structure comprises a cylinder body (10), wherein the cylinder body (10) is provided with a plurality of working cavities (11), a plurality of annular grooves (20) are arranged on the periphery of each working cavity (11), the annular grooves (20) are used for containing cooling liquid, the annular grooves (20) are arranged at intervals along the radial direction of the working cavities (11), a communication channel (30) is arranged between the adjacent annular grooves (20), a first thermostat (40) is arranged in the communication channel (30), the first thermostat (40) is provided with an open position which is opened to enable the adjacent annular grooves (20) to be communicated, and the first thermostat (40) is provided with a closed position which is used for closing the communication channel (30) to enable the adjacent annular grooves (20) to be disconnected;

The vehicle cooling system includes:

-an engine (61), the engine (61) being provided with the cylinder structure;

a first water pump (62), an inlet end of the first water pump (62) is communicated with an outlet end of the engine (61);

The inlet end of the heat preservation box (63) is communicated with the outlet end of the first water pump (62), and the outlet end of the heat preservation box (63) is communicated with the inlet end of the engine (61) through a first valve (64);

the whole vehicle radiator (71), the inlet end of the whole vehicle radiator (71) is communicated with the outlet end of the engine (61), and the outlet end of the whole vehicle radiator (71) is communicated with the inlet end of the engine (61) through a second water pump (72);

The hot air radiator (73), the entrance point of hot air radiator (73) with the exit end intercommunication setting of engine (61), the exit end of hot air radiator (73) with the entrance point intercommunication setting of second water pump (72), just hot air radiator (73) with whole car radiator (71) set up parallelly, wherein, first water pump (62) with be provided with temperature sensor (74) between the entrance point of engine (61), intercommunication the entrance point of whole car radiator (71) with the entrance point of hot air radiator (73) to and be provided with first bleed valve (75) and second valve (76) on the pipeline of engine (61) entrance point, be provided with second thermostat (77) on the pipeline of whole car radiator (71) entrance point, second thermostat (77) with whole car radiator (71) establish ties and set up.

2. A control method according to claim 1, characterized in that the depth direction of each annular groove (20) is arranged extending in the axial direction of the working chamber (11).

3. The control method according to claim 1 or 2, characterized in that the number of the annular grooves (20) is two, a partition (12) is formed between the two annular grooves (20), the communication channel (30) is opened on the partition (12), and the first thermostat (40) is connected with the partition (12) and is located in the communication channel (30).

4. A control method according to claim 3, characterized in that the partition (12) and the side wall of the annular groove (20) located at the outermost side of the working chamber (11) are provided with at least one sand removal hole (50).

5. A control method according to claim 3, characterized in that the annular grooves (20) corresponding to the respective working chambers (11) are provided independently or the annular grooves (20) corresponding to the adjacent working chambers (11) are provided in communication.

6. The control method according to claim 1, characterized in that the control method further comprises:

Acquiring temperature information of the temperature sensor (74), and after determining that the temperature of the cooling liquid rises by a third preset value based on the temperature information, controlling the second valve (76) to be opened, controlling the first valve (64) to be closed and starting a second water pump (72);

When the temperature of the cooling liquid is determined to rise by a third preset value and the current temperature of the cooling liquid is lower than the first preset value, controlling a second thermostat (77) to be in a closed state so that the cooling liquid flows into a warm air radiator (73), the second water pump (72) and the cylinder structure of an engine (61) in sequence;

And controlling the second thermostat (77) to be in an open state when the temperature of the cooling liquid is determined to rise by a third preset value and the current temperature of the cooling liquid is greater than or equal to the first preset value.

7. The control method according to claim 1, characterized in that the control method further comprises:

controlling the second valve (76) to be closed and the first valve (64) to be opened and starting a second water pump (72) under the condition that the engine (61) is detected to be in a flameout and stop state;

Detecting the liquid level height in the heat insulation box (63), and controlling the second water pump (72) to stop working under the condition that the liquid level height meets the preset condition.

8. A vehicle comprising a vehicle cooling system, characterized in that the vehicle cooling system is controlled by the control method of the vehicle cooling system according to any one of claims 1 to 7.