A vehicle and its engine cooling system

Abstract

The present disclosure is applicable to the technical field of vehicle cooling, and provides a vehicle and its engine cooling system. By adopting an engine cooling system including a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation path, a large circulation path, and a warm air path, the engine cooling system can control at least one of the temperature control module, the large circulation path, the small circulation path, and the warm air path to form a heat dissipation path according to the coolant temperature, the warm air instruction, the engine speed, and the vehicle load, so as to cool the engine through the heat dissipation path and the water pump, thereby realizing cooling of the engine according to the specific conditions of the vehicle, having good responsiveness, being able to perform real-time control of the flow rate, and having low fuel consumption, thus solving the problems of poor responsiveness, inability to achieve real-time flow control, and high fuel consumption existing in the existing engine cooling system.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of vehicle cooling, and particularly relates to a vehicle and its engine cooling system. Background Art

[0002] Currently, the engine cooling systems of vehicles on the market usually use thermostats to control the opening and closing of the large and small circuits. Traditional thermostats use wax packages as the main control elements, and control whether the wax packages melt through high and low temperatures, thereby controlling the opening and closing of the large and small circuits. Due to the characteristics of traditional wax packages, the opening of the thermostat is controlled by the water temperature of the cooling system. Therefore, it takes a certain amount of time for the thermostat to open from the initial opening to the full opening, and the responsiveness is poor; in addition, since traditional thermostats only have two control states and the water temperature changes slowly, it is impossible to achieve real-time flow control according to the engine and vehicle operating conditions, and other circuits of the engine (such as the heater) are usually in a constantly open state, resulting in increased fuel consumption of the vehicle. Summary of the Invention

[0003] In view of this, the embodiments of the present disclosure provide a vehicle and its engine cooling system, which can solve the problems of poor response, inability to achieve real-time flow control, and high fuel consumption existing in the existing vehicle engine cooling systems.

[0004] In a first aspect of the embodiments of the present disclosure, an engine cooling system is provided. The engine cooling system includes a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation path, a large circulation path, and a heater path; the control module is connected to the temperature control module, the water outlet of the engine is connected to the water inlet of the temperature control module, the first water outlet of the temperature control module is connected to the large circulation path, the second water outlet of the temperature control module is connected to the heater path, the third water outlet of the temperature control module is connected to the small circulation path, the small circulation path, the large circulation path, and the heater path are all connected to the water pump, and the water pump is connected to the engine;

[0005] When the temperature sensor and the temperature control module are fault-free, the temperature sensor detects the temperature of the coolant in the engine and feeds back the temperature of the coolant to the control module. The control module obtains the engine speed, vehicle load, and a heater instruction triggered by the user, and controls at least one of the temperature control module, the large circulation path, the small circulation path, and the heater path to form a heat dissipation path according to the temperature of the coolant, the engine speed, the vehicle load, and the heater instruction, so as to cool the engine through the heat dissipation path and the water pump.

[0006] In a second aspect of the embodiments of the present disclosure, a vehicle is provided. The vehicle includes the engine cooling system described in the first aspect.

[0007] The beneficial effects of the embodiments of the present disclosure compared with the prior art are as follows: By adopting an engine cooling system including a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation path, a large circulation path, and a warm air path, the engine cooling system can control at least one of the temperature control module, the large circulation path, the small circulation path, and the warm air path to form a heat dissipation path according to the coolant temperature, the warm air instruction, the engine speed, and the vehicle load, so as to cool the engine through the heat dissipation path and the water pump, thereby realizing the cooling of the engine according to the specific conditions of the vehicle, with good responsiveness, real-time control of the flow rate, and low fuel consumption, thus solving the problems of poor response, inability to achieve real-time control of the flow rate, and high fuel consumption existing in the existing engine cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0009] Figure 1 It is a schematic diagram of the module structure of the engine cooling system provided in Embodiment 1 of the present disclosure;

[0010] Figure 2 It is a schematic diagram of the module structure of the engine cooling system provided in Embodiment 2 of the present disclosure;

[0011] Figure 3 It is a schematic diagram of the structure of the temperature control module in the engine cooling system provided in Embodiment 3 of the present disclosure;

[0012] Figure 4 is Figure 3 a schematic diagram of the structure of the body of the temperature control module provided;

[0013] Figure 5 It is an application schematic diagram of the engine cooling system provided in Embodiment 4 of the present disclosure;

[0014] Figure 6 It is an application schematic diagram of the engine cooling system provided in Embodiment 5 of the present disclosure;

[0015] Figure 7 It is an application schematic diagram of the engine cooling system provided in Embodiment 6 of the present disclosure;

[0016] Figure 8 It is an application schematic diagram of the engine cooling system provided in Embodiment 7 of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In the following description, specific details such as specific system architectures and technologies are presented for purposes of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art should understand that the present disclosure can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obscuring the description of the present disclosure.

[0018] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0019] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0020] It should also be understood that the terms used in this specification of the present disclosure are merely for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used in this specification of the present disclosure and the appended claims, unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0021] It should be further understood that the term "and / or" used in this specification of the present disclosure and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0022] To illustrate the technical solutions described in the present disclosure, the following will be described through specific embodiments.

[0023] Figure 1 The module structure of the engine cooling system 100 provided in the first embodiment of the present disclosure is shown. For ease of illustration, only the parts related to this embodiment are shown and are described in detail as follows:

[0024] As Figure 1 shown, the engine cooling system 100 includes a temperature sensor 10, a control module 20, an engine 30, a water pump 40, a temperature control module 50, a small circulation path 60, a large circulation path 70, and a warm air path 80.

[0025] Among them, the temperature sensor 10 is connected to the engine 30 and the control module 20. The control module 20 is connected to the temperature control module 50. The water outlet of the engine 30 is connected to the water inlet of the temperature control module 50. The first water outlet of the temperature control module 50 is connected to the large circulation path 70. The second water outlet of the temperature control module 50 is connected to the warm air path 80. The third water outlet of the temperature control module 50 is connected to the small circulation path 60. The small circulation path 60, the large circulation path 70, and the warm air path 80 are all connected to the water pump 40. The water pump 40 is connected to the engine 30.

[0026] Specifically, when the temperature sensor 10 and the temperature control module 50 are fault-free, the temperature sensor 10 detects the temperature of the coolant in the engine 30 and feeds back the temperature of the coolant to the control module 20. The control module 20 obtains the engine speed, vehicle load, and the warm air command triggered by the user, and controls at least one of the temperature control module 50, the large circulation path 70, the small circulation path 60, and the warm air path 80 to form a heat dissipation path according to the temperature of the coolant, the engine speed, the vehicle load, and the warm air command, so as to cool the engine 30 through the heat dissipation path and the water pump 40.

[0027] During specific implementation, the fact that the temperature sensor 10 and the temperature control module 50 are fault-free means the state that is normal after self-check of the temperature sensor 10 and the temperature control module 50 after the vehicle is powered on. Specifically, the self-check of the temperature sensor 10 is whether the output and feedback signals are normal, while the self-check of the temperature control module 50 is whether each component in the temperature control module 50 can work normally. When there are faults after the self-check of the temperature sensor 10 and the temperature control module 50, the control module 20 restricts the output torque of the whole vehicle to reduce the vehicle speed and prevent the engine temperature from being too high, or the control module 20 directly controls the temperature control module 50 to switch to the large circulation path 70, so that the flow rate of the engine cooling system becomes larger, thereby accelerating the heat dissipation of the engine 30, and thus preventing the engine 30 from experiencing dangers such as knocking.

[0028] In addition, during specific implementation, the control module 20 is implemented by an electronic control unit (ECU) in the vehicle. The small circulation path 60 refers to the existing flow path of the small circulation of the engine cooling water, and the large circulation path 70 refers to the existing flow path of the large circulation of the engine cooling water.

[0029] In this embodiment, the present disclosure adopts an engine cooling system including a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation path, a large circulation path, and a warm air path, enabling the engine cooling system to control at least one of the temperature control module, the large circulation path, the small circulation path, and the warm air path to form a heat dissipation path according to the coolant temperature, the warm air instruction, the engine speed, and the vehicle load, so as to cool the engine through the heat dissipation path and the water pump, achieving cooling of the engine according to the specific conditions of the vehicle, and preventing the warm air from being in a long-open state, with good responsiveness, real-time flow control, and low fuel consumption, thus solving the problems of poor response, inability to achieve real-time flow control, and high fuel consumption existing in the existing engine cooling system.

[0030] Further, as another implementation manner of the present disclosure, as Figure 2 shown, the warm air path 80 in the engine cooling system 100 provided by the embodiment of the present disclosure includes an exhaust gas recirculation cooler 801 and a warm air pipeline 802; the second water outlet of the temperature control module 50 is connected to the exhaust gas recirculation cooler 801, the exhaust gas recirculation cooler 801 is connected to the warm air pipeline 802, and the warm air pipeline 802 is connected to the water pump 40.

[0031] In this embodiment, by adopting the exhaust gas recirculation cooler 801 and the warm air pipeline 802 to form the warm air path 80, when warm air is needed, the warm air pipeline 802 can be heated by the exhaust gas temperature of the exhaust gas recirculation cooler 801, thereby reducing the coolant flow rate in the warm air pipeline 802 and thus reducing fuel consumption.

[0032] Further, as an implementation manner of the present disclosure, as Figure 3 and Figure 4 shown, the temperature control module 50 in the engine cooling system 100 provided by the embodiment of the present disclosure includes a body 4, a temperature control ball valve 3, a motor 6, and a bearing 2.

[0033] Among them, a water inlet 40, a first water outlet 41, a second water outlet 42, and a third water outlet 43 are provided on the body 4. The water inlet 40 is docked with the water outlet of the engine 30 (not shown in the figure, please refer to Figure 1 or Figure 2 ), the first water outlet 41 is connected to the large circulation path 70, the second water outlet 42 is connected to the warm air path 80, and the third water outlet 43 is connected to the small circulation path 60; the temperature control ball valve 3 is arranged inside the body 4, the first end of the temperature control ball valve 3 is connected to the motor 6, the bearing 2 is embedded in the second end of the temperature control ball valve 3, and the motor 6 is controlled by the control module 20 (not shown in the figure, please refer to Figure 1 or Figure 2) drives the temperature control ball valve 3 to rotate accordingly, so that the temperature control ball valve 3 forms a heat dissipation path with at least one of the large circulation path 70, the small circulation path 60, and the warm air path 80.

[0034] In specific implementation, the body 4 can be implemented by a cylinder of any shape, such as a cylinder, a square cylinder, a rectangular cylinder, etc., without any limitation here; in addition, as Figure 4 shown, the water inlet 40 is realized by a regular or irregular notch provided on one surface of the body 4, such as the square notch 40 in this embodiment, and the first water outlet 41, the second water outlet 42, and the third water outlet 43 are all cylindrical pipes provided on the surface opposite to the square notch 40, such as Figure 4 the cylindrical pipes 41, 42, and 43 shown, and the cylindrical pipes 41, 42, and 43 can be embedded on the cylinder of the body 4 or integrally formed with the cylinder of the body 4, without specific limitation here.

[0035] In this embodiment, by adopting a temperature control module 50 composed of a temperature control ball valve with one inlet and three outlets, a body, a motor, and a bearing, the temperature control module 50 can control the flow direction of the engine coolant through the temperature control ball valve with one inlet and three outlets, thereby realizing the multi-way on-off control of the engine coolant and having a fast response speed.

[0036] Furthermore, as an implementation manner of the present disclosure, in specific implementation, as Figure 3 shown, the temperature control ball valve 3 includes a first ball valve 31, a second ball valve 32, and a support shaft 33. The first ball valve 31 and the second ball valve 32 are nested on the support shaft 33. The first end of the support shaft 33 is connected to the motor 6, and the second end of the support shaft 33 is embedded with a bearing 2. A first through hole 310 is provided on the first ball valve 31, and a second through hole (not shown in the figure) and a third through hole (not shown in the figure) are provided on the second ball valve 32. The first through hole 310 connects the water inlet 40 and the first water outlet 41, the second through hole connects the water inlet 40 and the second water outlet 42, and the third through hole connects the water inlet 40 and the third water outlet 43.

[0037] During specific implementation, the first ball valve 31 and the second ball valve 32 can be two ball valves of the same size or two ball valves of different sizes, and no specific limitation is imposed here. Additionally, the second through-hole, the third through-hole on the second ball valve 32 and the first through-hole on the first ball valve 31 have the same shape, and the second through-hole and the third through-hole can be arranged on the second ball valve 32 at the same spacing as between the second water outlet 42 and the third water outlet 43 on the body 4, that is, the second through-hole on the second ball valve 32 is opposite to the second water outlet 42 on the body 4, the third through-hole is opposite to the third water outlet 43 on the body 4, and the first through-hole 310 on the first ball valve 31 is opposite to the first water outlet 41; furthermore, the support shaft 33 and the motor shaft of the motor 6 can be the same shaft body, so that it can be effectively ensured that when the motor 6 rotates, the temperature control ball valve 3 will rotate accordingly, thereby ensuring that the first through-hole 310 on the first ball valve 31 is opposite to the first water outlet 41 on the body 4, and the second through-hole and the third through-hole on the second ball valve 32 are respectively opposite to the second water outlet and the third water outlet on the body 4.

[0038] In this embodiment, by adopting a temperature control ball valve composed of a first ball valve, a second ball valve and a support shaft, during the operation of the temperature control module of the temperature control ball valve, the large circulation path, the small circulation path and the warm air path can be connected through different through-holes on different ball valves, thereby realizing the cooling of the engine, and the temperature control ball valve is driven to rotate by the rotation of the motor, so that the through-holes on the ball valve are connected to different paths, thereby accelerating the response speed of the engine cooling system.

[0039] Further, as an implementation manner of the present disclosure, as Figure 3 shown, the first ball valve 31 and the second ball valve 32 are nested on the support shaft 33 in sequence from top to bottom, the first water outlet 41 is arranged above the second water outlet 42 and the third water outlet 43, the second water outlet 42 and the third water outlet 43 are arranged at the same height, the first through-hole 310 connects the water inlet 40 and the first water outlet 41, the second through-hole connects the water inlet 40 and the second water outlet 42, and the third through-hole connects the water inlet 40 and the third water outlet 43.

[0040] Further, as another implementation manner of the present disclosure, the first ball valve and the second ball valve can also be nested on the support shaft in sequence from bottom to top, the first water outlet is arranged below the second water outlet and the third water outlet, the second water outlet and the third water outlet are arranged at the same height, the first through-hole connects the water inlet and the first water outlet, the second through-hole connects the water inlet and the second water outlet, and the third through-hole connects the water inlet and the third water outlet.

[0041] In this embodiment, in the engine cooling system provided by the embodiments of the present disclosure, the temperature control ball valve sets the second water outlet and the third water outlet at the same height, and uses the first through hole to connect the water inlet and the first water outlet, the second through hole to connect the water inlet and the second water outlet, and the third through hole to connect the water inlet and the third water outlet, so that the engine cooling system can achieve the cooling of the engine through four paths of one inlet and three outlets, and there will be no interference between the cooling paths, ensuring the working reliability of the engine while improving the response speed of engine cooling.

[0042] Further, as an implementation manner of the present disclosure, as Figure 3 shown, the temperature control module 50 further includes a front cover plate 1 and a rear cover plate 5. A fourth through hole 51 is provided on the rear cover plate 5. The front cover plate 1 seals the top of the body 4, the rear cover plate 5 seals the bottom of the body 4, and the support shaft 33 is connected to the motor 6 through the fourth through hole 51.

[0043] In this embodiment, by providing the front cover plate 1 and the rear cover plate 5 in the temperature control module 50, the front cover plate 1 and the rear cover plate 5 seal and protect the temperature control ball valve 3 in the body 4, preventing damage to the temperature control ball valve 3 from the outside and preventing the coolant in the temperature control ball valve 3 from overflowing.

[0044] Next, the principle of the engine cooling system 100 of the present disclosure will be specifically described in conjunction with specific application scenarios and Figures 1 to 4 the structure shown as follows:

[0045] As Figure 1 shown, when the vehicle is powered on and the temperature sensor 10 and the temperature control module 50 are fault-free, in order to prevent the engine 30 from overheating during operation, it is necessary to cool the engine 30 in real time. At this time, the temperature sensor 10 detects the temperature of the coolant in the engine 30 and feeds back the temperature of the coolant to the control module 20. At the same time, the control module 20 obtains the engine speed, vehicle load, and the warm air instruction triggered by the user, and performs corresponding processing on the coolant in the engine according to the coolant temperature, engine speed, vehicle load, and warm air instruction, that is, connects different heat dissipation paths according to the real-time condition of the vehicle.

[0046] Specifically, please refer to Figures 2 to 5, when the control module 20 determines that the engine 30 is in the warm-up stage based on the engine speed and vehicle load, and the warm air instruction is to not turn on the warm air and the temperature of the coolant is lower than the warm-up temperature threshold, the control module 20 controls the third through-hole on the second ball valve 32 in the temperature control module 50 to be connected to the third water outlet 43, so that the temperature control module 50 and the small circulation passage 60 form a heat dissipation passage, and controls the flow rate of the heat dissipation passage. At the same time, the control module 20 controls the second through-hole on the second ball valve 32 to be disconnected from the second water outlet 42, and controls the first through-hole 310 on the first ball valve 31 to be disconnected from the first water outlet 41.

[0047] During specific implementation, the control module 20 controls the motor 6 to rotate. Since the motor 6 and the support shaft 33 in the temperature control ball valve 3 are of the same shaft body, when the motor 6 rotates, the support shaft 33 of the temperature control ball valve 3 rotates accordingly. In this way, the specific positions of the first through-hole of the first ball valve 31, the second through-hole of the second ball valve 32, and the third through-hole in the temperature control ball valve 3 can be controlled, so as to connect the third through-hole to the third water outlet 43, disconnect the second through-hole from the second water outlet 42, and disconnect the first through-hole from the first water outlet 41. At this time, the heat dissipation passage of the engine is as Figure 5 shown; it should be noted that in the embodiments of the present disclosure, the control module 20 controls the position of the through-holes on the temperature control ball valve 3 by the click 6 specifically refers to the connection ratio between each through-hole and its corresponding water outlet. For example, all the through-holes are connected to the water outlet, or half of the through-holes are connected to the water outlet, or 20% of the through-holes are connected to the water outlet, and the specific connection ratio can be set according to the specific situation and is not limited here.

[0048] Further, when the control module 20 determines that the engine is in the warm-up stage based on the engine speed and vehicle load, and the warm air instruction is to turn on the warm air and the temperature of the coolant is higher than the warm-up temperature threshold and lower than the large circulation opening temperature threshold, at this time, the control module 20 controls the third through-hole on the second ball valve 32 in the temperature control module 50 to be connected to the third water outlet 43, so that the temperature control module 50 and the small circulation passage 60 form a first heat dissipation passage, and controls the second through-hole on the second ball valve 32 to be connected to the second water outlet 42, so that the temperature control module 50 and the warm air passage 80 form a second heat dissipation passage, and controls the flow rates of the first heat dissipation passage and the second heat dissipation passage. At the same time, the control module 20 controls the first through-hole 310 on the first ball valve 31 to be disconnected from the first water outlet 41. The specific heat dissipation passage is as Figure 6 shown; it should be noted that in this embodiment, the specific control of the ball valve can refer to the foregoing related descriptions and will not be elaborated here.

[0049] Further, when the control module 20 determines that the engine is in a non-warm-up stage based on the engine speed and vehicle load, the warm air instruction is to turn on the warm air, and the temperature of the coolant is higher than the large circulation start temperature threshold, at this time, the control module 20 controls the first through hole 310 on the first ball valve 31 to be connected to the first water outlet 41, so that the temperature control module 50 and the large circulation path 70 form a third heat dissipation path, and controls the second through hole on the second ball valve 32 to be connected to the second water outlet 42, so that the temperature control module 50 and the warm air path 80 form a fourth heat dissipation path, and controls the flow rates of the third heat dissipation path and the fourth heat dissipation path. At the same time, it controls the third through hole on the second ball valve 32 to be disconnected from the third water outlet 43; it should be noted that in this embodiment, the specific control of the ball valve can refer to the foregoing related descriptions and will not be elaborated here.

[0050] In addition, in this embodiment, controlling the third through hole on the second ball valve 32 to be disconnected from the third water outlet 43 means controlling the third through hole on the second ball valve 32 to start disconnecting and completely disconnecting from the third water outlet 43, and controlling the third through hole on the second ball valve 32 to start disconnecting is that the third through hole on the second ball valve 32 is partially connected to the third water outlet 43. At this time, the small circulation heat dissipation path can still work, and the specific heat dissipation path is as Figure 7 shown, and controlling the third through hole on the second ball valve 32 to be completely disconnected from the third water outlet 43 means that the third through hole on the second ball valve 32 has no connection with the third water outlet 43. At this time, the small circulation heat dissipation path cannot work, and the specific heat dissipation path is as Figure 8 shown.

[0051] In this embodiment, the present disclosure adopts an engine cooling system circuit composed of a temperature control module with one inlet and three outlets, so that the exhaust gas recirculation cooler and the warm air series circuit do not need to be in a normally open state, and the exhaust gas temperature passing through the EGR cooler can be used to heat the warm air circuit, reducing the coolant flow rate of the warm air circuit, improving the engine warm-up speed and reducing emissions while reducing fuel consumption. In addition, the control module 20 can control the temperature control module to control the on-off of each branch and the flow rate according to parameters such as the vehicle and engine speed, load, etc., with good response speed and can control the flow rate of the engine coolant in real time.

[0052] Further, the present disclosure also provides a vehicle, and this vehicle includes an engine cooling system. It should be noted that since the engine cooling system of the vehicle provided in the embodiment of the present disclosure and the Figures 1 to 8 engine cooling system 100 described are the same, therefore, for the specific working principle of the engine cooling system in the vehicle provided in the embodiment of the present invention, reference can be made to the foregoing detailed description about Figures 1 to 8 this, and it will not be elaborated here.

[0053] In the present disclosure, the vehicle adopts an engine cooling system including a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation passage, a large circulation passage, and a warm air passage. The engine cooling system can control at least one of the temperature control module, the large circulation passage, the small circulation passage, and the warm air passage to form a heat dissipation passage according to the coolant temperature, the warm air instruction, the engine speed, and the vehicle load, so as to cool the engine through the heat dissipation passage and the water pump, thereby realizing the cooling of the engine according to the specific conditions of the vehicle, with good responsiveness, real-time control of the flow rate, and low fuel consumption, thus solving the problems of poor response, inability to achieve real-time flow control, and high fuel consumption existing in the existing engine cooling systems.

[0054] The above-described embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present disclosure, and should all be included within the protection scope of the present disclosure.

Claims

1. An engine cooling system, characterized in that, The engine cooling system includes a temperature sensor, a control module, an engine, a water pump, a temperature control module, a small circulation path, a large circulation path, and a warm air path; the control module is connected to the temperature control module, the water outlet of the engine is connected to the water inlet of the temperature control module, the first water outlet of the temperature control module is connected to the large circulation path, the second water outlet of the temperature control module is connected to the warm air path, the third water outlet of the temperature control module is connected to the small circulation path, the small circulation path, the large circulation path, and the warm air path are all connected to the water pump, and the water pump is connected to the engine; When the temperature sensor and the temperature control module are fault-free, the temperature sensor detects the temperature of the coolant in the engine and feeds back the temperature of the coolant to the control module. The control module obtains the engine speed, vehicle load, and warm air instruction triggered by the user, and controls at least one of the temperature control module, the large circulation path, the small circulation path, and the warm air path to form a heat dissipation path according to the temperature of the coolant, the engine speed, the vehicle load, and the warm air instruction, so as to cool the engine through the heat dissipation path and the water pump; and the temperature control module can form a heat dissipation path with any one of the large circulation path, the small circulation path, and the warm air path; The temperature control module includes a body, a temperature control ball valve, and a motor: The body is provided with a water inlet, a first water outlet, a second water outlet, and a third water outlet. The water inlet is docked with the water outlet of the engine. The first water outlet is connected to the large circulation path. The second water outlet is connected to the warm air path. The third water outlet is connected to the small circulation path. The temperature control ball valve is arranged in the body. The motor drives the temperature control ball valve to rotate correspondingly under the action of the control module, so that the temperature control ball valve forms a heat dissipation path with at least one of the large circulation path, the small circulation path, and the warm air path; The control module is implemented by an electronic control unit in the vehicle.

2. The engine cooling system according to claim 1, wherein The warm air path includes an exhaust gas recirculation cooler and a warm air pipeline; the second water outlet of the temperature control module is connected to the exhaust gas recirculation cooler, the exhaust gas recirculation cooler is connected to the warm air pipeline, and the warm air pipeline is connected to the water pump.

3. The engine cooling system according to claim 2, characterized in that, The temperature control module further includes a bearing: The bearing is embedded in the second end of the temperature control ball valve.

4. The engine cooling system according to claim 3, characterized in that, The temperature control ball valve includes a first ball valve, a second ball valve, and a support shaft. The first ball valve and the second ball valve are nested on the support shaft. The first end of the support shaft is connected to the motor. The second end of the support shaft is embedded with the bearing. The first ball valve is provided with a first through hole. The second ball valve is provided with a second through hole and a third through hole. The first through hole connects the water inlet and the first water outlet. The second through hole connects the water inlet and the second water outlet. The third through hole connects the water inlet and the third water outlet.

5. The engine cooling system according to claim 4, characterized in that, The first ball valve and the second ball valve are nested on the support shaft in sequence from top to bottom, and the first water outlet is arranged above the second water outlet and the third water outlet, or The first ball valve and the second ball valve are nested on the support shaft in sequence from bottom to top, and the first water outlet is arranged below the second water outlet and the third water outlet; The second water outlet and the third water outlet are arranged at the same height.

6. The engine cooling system according to claim 4 or 5, characterized in that, The temperature control module further includes a front cover plate and a rear cover plate. A fourth through hole is provided on the rear cover plate. The front cover plate seals the top of the body, the rear cover plate seals the bottom of the body, and the support shaft is connected to the motor through the fourth through hole.

7. The engine cooling system according to claim 4, wherein When the control module determines that the engine is in the warm-up stage according to the engine speed and the vehicle load, and the warm air instruction is not to turn on the warm air and the temperature of the coolant is lower than the warm-up temperature threshold, the control module controls the third through hole to communicate with the third water outlet, so that the temperature control module and the small circulation path form a heat dissipation path, and controls the flow rate of the heat dissipation path. At the same time, the control module controls the second through hole to be disconnected from the second water outlet, and controls the first through hole to be disconnected from the first water outlet.

8. The engine cooling system according to claim 4, characterized in that, When the control module determines that the engine is in the warm-up stage according to the engine speed and the vehicle load, and the warm air instruction is to turn on the warm air and the temperature of the coolant is higher than the warm-up temperature threshold and lower than the large circulation opening temperature threshold, the control module controls the third through hole to communicate with the third water outlet, so that the temperature control module and the small circulation path form a first heat dissipation path, and controls the second through hole to communicate with the second water outlet, so that the temperature control module and the warm air path form a second heat dissipation path, and controls the flow rates of the first heat dissipation path and the second heat dissipation path. At the same time, it controls the first through hole to be disconnected from the first water outlet.

9. The engine cooling system according to claim 4, wherein, When the control module determines that the engine is in the non-warm-up stage according to the engine speed and the vehicle load, and the warm air instruction is to turn on the warm air and the temperature of the coolant is higher than the large circulation opening temperature threshold, the control module controls the first through hole to communicate with the first water outlet, so that the temperature control module and the large circulation path form a third heat dissipation path, and controls the second through hole and the second water outlet to communicate, so that the temperature control module and the warm air path form a fourth heat dissipation path, and controls the flow rates of the third heat dissipation path and the fourth heat dissipation path. At the same time, it controls the third through hole to be disconnected from the third water outlet.

10. A vehicle, characterized in that, The vehicle includes the engine cooling system according to any one of claims 1 to 9.

Images