Vehicle heat dissipation module, system, control method thereof and vehicle

Abstract

The present invention provides a vehicle heat dissipation module, a system, a control method thereof, and a vehicle. The vehicle heat dissipation module of the present invention includes a radiator, an active intake grille disposed upstream of the radiator along the air flow direction, a cooling fan disposed downstream of the radiator, and a cold air intake assembly disposed between the active intake grille and the radiator; the cold air intake assembly is used to form an intake chamber between the active intake grille and the radiator, air flows from the active intake grille through the intake chamber into the radiator, the cold air intake assembly is provided with an intake port for connecting with the air outlet pipeline of the vehicle air conditioning system, and a plurality of air outlet ports for blowing air into the intake chamber. The vehicle heat dissipation module of the present invention can utilize the vehicle air conditioning system to blow cold air to the air inlet side of the radiator, which can improve the heat dissipation capacity of the vehicle and meet the cooling requirements of the vehicle when using the vehicle in a high temperature environment.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and particularly to a vehicle cooling module. The present invention also relates to a control method for the vehicle cooling module, and a vehicle provided with the above vehicle cooling module. Background Art

[0002] When a vehicle is used in a high-temperature environment, especially when the vehicle is also in a high-power and high-torque driving scenario, whether it is a traditional fuel vehicle or a hybrid vehicle, the cooling of the engine and the three-electric systems (battery, motor, electronic control) in the hybrid vehicle is very important. If the cooling requirements cannot be met, there will be an alarm for high water temperature of the engine or the three-electric systems, and if the high temperature persists for a long time, it may even lead to a decline in engine performance and ablation of the three-electric systems.

[0003] Currently, to meet the cooling requirements in a high-temperature environment, one way is to match a radiator with a larger size and a cooling fan with a higher power according to the extreme high-temperature working conditions in the vehicle design to improve the heat dissipation capacity of the radiator, so as to meet the cooling needs. Another way is to limit the power and torque output of the power system through software logic to avoid the situation of high water temperature.

[0004] However, if the radiator and the cooling fan are matched according to the extreme working conditions, it will increase the development difficulty, raise the vehicle cost, and it is also difficult to achieve platform design. And if the power and torque output of the power system are limited through software logic, it will also affect the vehicle power performance and reduce the vehicle driving quality. Summary of the Invention

[0005] In view of this, the present invention aims to provide a vehicle cooling module that can meet the cooling requirements of the vehicle when used in a high-temperature environment.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows:

[0007] A vehicle cooling module includes a radiator, an active intake grille disposed upstream of the radiator along the air flow direction, a cooling fan disposed downstream of the radiator, and a cold air intake assembly disposed between the active intake grille and the radiator;

[0008] The cold air intake assembly is used to form an intake chamber between the active intake grille and the radiator, air flows from the active intake grille through the intake chamber into the radiator, the intake chamber is provided with an intake port for connecting to the air outlet pipeline of the vehicle air conditioning system, and a plurality of air outlet ports for blowing air into the intake chamber.

[0009] Further, the cold air intake assembly is integrated on the radiator, or the cold air intake assembly is detachably connected to the radiator.

[0010] Further, an air outlet end face facing the intake chamber is formed on the cold air intake assembly, and the air outlet is an air outlet hole opened on the air outlet end face.

[0011] Further, some of the air outlets are inclined towards the direction of the active intake grille.

[0012] Further, a flow deflector is provided between the active intake grille and the radiator, and the cold air intake assembly is arranged on one side of the flow deflector.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] In the vehicle cooling module of the present invention, through the setting of the cold air intake assembly, an intake chamber is formed on the air inlet side of the radiator, and the design is such that the air inlet of the cold air intake assembly is connected to the air outlet pipeline of the vehicle air conditioning system, and the air outlet blows air towards the intake chamber, that is, the air inlet side of the radiator. Thus, the vehicle air conditioning system can be used to blow cold air towards the air inlet side of the radiator, improving the heat dissipation capacity of the vehicle so as to meet the cooling requirements of the vehicle when using the vehicle in a high-temperature environment.

[0015] In addition, in the present invention, the cold air intake assembly is integrated on the radiator or detachably connected to the radiator, which can realize the reliable arrangement of the cold air intake assembly, and the arrangement form is simple and convenient. The air outlet adopts an air outlet hole, with a simple structure and easy to design and manufacture. The setting of the flow deflector can ensure the use effect of the active intake grille.

[0016] The present invention also proposes a vehicle cooling system, which includes the above-mentioned vehicle cooling module provided in the vehicle, and also includes a controller provided in the vehicle, as well as a vehicle air conditioning system and a temperature detection unit connected to the controller;

[0017] The air inlet of the cold air intake assembly is connected to the air outlet pipeline of the vehicle air conditioning system through an air inlet pipe, the active intake grille is connected to the controller, and the temperature detection unit includes a coolant temperature sensor for detecting the coolant temperature in the vehicle power assembly and an ambient temperature sensor for detecting the external ambient temperature.

[0018] Further, an air compression pump connected to the controller is connected in series on the air inlet pipe.

[0019] Further, an air flow control valve connected to the controller is connected in series on the air inlet pipe.

[0020] Furthermore, part of the air outlet is inclined toward the radiator, and a wind speed sensor is provided on the air outlet side of the radiator.

[0021] The present invention also proposes a control method for the above vehicle cooling system, the control method comprising:

[0022] Obtain the temperature of the coolant in the vehicle powertrain and the temperature of the environment outside the vehicle;

[0023] According to the obtained coolant temperature and the temperature of the environment outside the vehicle, the vehicle air conditioning system is controlled to start cooling, the active air intake grille is controlled to open according to a preset opening threshold, and the air flow control valve is controlled to open according to a preset opening threshold.

[0024] Furthermore, the control method further includes:

[0025] In the parking state, turning on the cooling fan and the active air intake grille, and obtaining a wind speed signal from the wind speed sensor;

[0026] According to the acquired wind speed signal, the vehicle air conditioning system is controlled to start, and the air flow control valve is controlled to open, so as to purge the radiator.

[0027] The vehicle cooling system and control method thereof described in the present invention adopt the above-mentioned vehicle cooling module, and through the configuration of the vehicle air-conditioning system and the temperature detection unit, etc., can use the cold air of the vehicle air-conditioning system to cool the radiator when the vehicle is used in a high-temperature environment, thereby improving the heat dissipation capacity of the radiator, being able to meet the cooling needs of the vehicle when the vehicle is used in a high-temperature environment, and improving the quality of vehicle use.

[0028] By installing an air compression pump, the flow rate of cold air per unit time can be increased, which helps to improve the cooling effect. The setting of the air flow control valve can adjust the cold air flow rate according to the cooling performance requirements, which is conducive to achieving precise control.

[0029] In addition, some air outlets are tilted toward the radiator and a wind speed sensor is provided. The wind speed sensor can be used to detect that more sand or dust is deposited on the radiator, resulting in a reduced air flow cross-section and greater wind resistance. When the wind speed cannot reach the set value, the radiator is purged with air delivered by the vehicle air conditioner to remove sand, dust and other deposits attached to the surface of the radiator, thereby achieving self-cleaning of the radiator and improving the heat exchange efficiency of the radiator.

[0030] The present invention also provides a vehicle, in which the above-mentioned vehicle cooling system is provided.

[0031] The vehicle of the present invention can improve the heat dissipation capacity of the radiator and meet the cooling requirements of the vehicle when used in a high-temperature environment by setting the above-mentioned vehicle heat dissipation system. Thus, the vehicle usage quality can be improved, and it has very good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 is a schematic structural diagram of the vehicle heat dissipation module according to Embodiment 1 of the present invention;

[0034] Figure 2 is Figure 1 a schematic structural diagram of the structure shown from another perspective;

[0035] Figure 3 is Figure 1 a side view of the structure shown;

[0036] Figure 4 is an exploded view of the vehicle heat dissipation module according to Embodiment 1 of the present invention;

[0037] Figure 5 is a schematic structural diagram of the cold air intake assembly according to Embodiment 1 of the present invention;

[0038] Figure 6 is a schematic structural diagram of the cold air intake assembly according to Embodiment 1 of the present invention;

[0039] Figure 7 is a schematic diagram of the cold air flow direction in the vehicle heat dissipation system according to Embodiment 2 of the present invention;

[0040] Figure 8 is a schematic connection diagram of the controller in the vehicle heat dissipation system according to Embodiment 2 of the present invention;

[0041] Figure 9 is a flowchart of the vehicle heat dissipation system control method according to Embodiment 2 of the present invention;

[0042] Figure 10 is a control flowchart of the radiator self-cleaning according to Embodiment 2 of the present invention;

[0043] Description of the reference numerals:

[0044] 1. Radiator; 2. Cooling fan; 3. Active intake grille; 4. Deflector; 5. Cold air intake assembly; 6. Controller; 7. Vehicle air conditioning system; 8. Air compression pump; 9. Air flow control valve; 10. Coolant temperature sensor; 11. Ambient temperature sensor;

[0045] 501, Upper intake component; 502, Side intake component; 503, Intake port; 504, Exhaust end face; 505, Exhaust port. Specific implementation manner

[0046] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0047] In the description of the present invention, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connection component" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood in combination with specific situations.

[0049] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0050] Embodiment 1

[0051] This embodiment relates to a vehicle heat dissipation module, which is the same as the heat dissipation module used for engine coolant heat dissipation in existing vehicles, and is specifically arranged in the front engine compartment of the vehicle to be able to utilize the air entering from the front end of the vehicle during vehicle driving to convect and dissipate the heat of the coolant in radiator 1.

[0052] In the overall design, as Figures 1 to 4 shown in, the vehicle heat dissipation module of this embodiment includes radiator 1, and along the air flow direction, an active intake grille 3 arranged upstream of radiator 1, and a cooling fan 2 arranged downstream of radiator 1. At the same time, the vehicle heat dissipation module of this embodiment further includes a cold air intake component 5 arranged between the active intake grille 3 and radiator 1.

[0053] In this embodiment, the above-mentioned cold air intake assembly 5 is used to form an intake chamber between the active intake grille 3 and the radiator 1, and the outside air flows into the radiator 1 from the active intake grille 3 through this intake chamber. Moreover, an air inlet 503 for connecting to the air outlet pipeline of the vehicle air conditioning system 7 is provided on the cold air intake assembly 5, as well as a number of air outlets for blowing air into the above-mentioned intake chamber.

[0054] Specifically, for the above-mentioned radiator 1, active intake grille 3, and cooling fan 2, conventional products applied in existing vehicles can be used. Generally, the cooling fan 2 also uses an electric fan. It should be noted that in Figures 1 to 4 only a schematic structure of the radiator 1, active intake grille 3, and cooling fan 2 is simply given, which is used to reflect the composition of the vehicle cooling module in this embodiment, and at the same time is used to reflect the relative positional relationship between components such as the radiator 1, active intake grille 3, and cooling fan 2. During specific implementation, the interconnection between components such as the radiator 1, active intake grille 3, and cooling fan 2, as well as their installation in the vehicle front engine compartment, etc., can also refer to the relevant structures in existing vehicles.

[0055] In this embodiment, the cold air intake assembly 5 can be optionally integrated on the radiator 1, or the cold air intake assembly 5 can also be detachably connected to the radiator 1. At this time, for the setting method of being integrated on the radiator 1, generally, while forming the water chamber in the formed radiator 1, the above-mentioned cold air intake assembly 5 can be simultaneously formed in the radiator 1. The cold air intake assembly 5 can be fixedly connected to the water chamber, or can also be fixedly connected to the main frame of the radiator 1 together with the water chamber. Moreover, the cold air intake assembly 5 is arranged on the air inlet side of the radiator 1 compared with the water chamber, and an air inlet and an air outlet are provided on the cold air intake assembly 5.

[0056] For the method of detachably connecting the cold air intake assembly 5 to the radiator 1, generally, while the cold air intake assembly 5 adopts the structure shown in Figures 1 to 4 or a similar structure, conventional connection forms such as screwing or clamping can be used for connection. Of course, in addition to integrating or connecting the cold air intake assembly 5 on the radiator 1, in this embodiment, it can also be arranged on other components upstream of the radiator 1 along the air flow direction. For example, the cold air intake assembly 5 can be connected to the leeward side of the active intake grille 3, or when the following deflector 4 is provided, the cold air intake assembly 5 can also be arranged on the deflector 4.

[0057] In this embodiment, as a preferred implementation form, multiple cold air intake assemblies 5 can be provided, and multiple cold air intake assemblies 5 are as Figure 4The side edges surrounding the radiator 1 are arranged in sequence. At this time, when multiple cold air intake components 5 are arranged in sequence along the side edges of the radiator 1, a larger contact area between the cold air and the radiator 1 can be achieved, thereby improving the utilization effect of the cold air.

[0058] When multiple cold air intake components 5 are provided, one implementation manner is, for example, as Figure 4 and Figure 5 shown, such that the cold air intake components 5 are not connected to each other, and thus air inlets 503 are respectively provided on each cold air intake component 5. However, in addition to making the cold air intake components 5 not connected to each other, when multiple cold air intake components 5 are provided, as another implementation manner, for example, the cold air intake components 5 can also be connected to each other in sequence, and at this time, only one air inlet 503 can be provided, or multiple air inlets 503 can still be provided to ensure the air intake at each position of the cold air intake component 5.

[0059] When multiple cold air intake components 5 are provided as described above, it should also be noted that the cold air intake component 5 can be provided, for example, Figure 4 or Figure 5 as shown in three, so that the overall cold air intake component 5 is similar to a "U" shape. Of course, in addition to making the cold air intake component 5 three, it can also be set to four, so that the overall cold air intake component 5 is similar to a square shape. In addition, in addition to making multiple cold air intake components 5 arranged in sequence along the side edges of the radiator 1, of course, in this embodiment, the cold air intake component 5 can be set to only one located at one side edge of the radiator 1, or the cold air intake component 5 can be set to two located at two opposite edges or two adjacent edges of the radiator 1, which is also possible.

[0060] Moreover, when the cold air intake components 5 are not simultaneously provided at all side edge positions of the radiator 1, it should also be noted that for the positions where the cold air intake components 5 are not provided, structures such as baffles should be provided to block these positions to prevent external air from entering the radiator 1 from these positions.

[0061] In this embodiment, specifically, Figure 4 and Figure 5 shown in the example of setting three cold air intake components 5 will be described. At this time, for the convenience of description, the three cold air intake components 5 are respectively side intake components 501 arranged along the edge positions on both sides of the radiator 1, and an upper intake component 502 arranged along the top edge position of the radiator 1. The structures of the three cold air intake components 5 are basically the same, and the three cold air intake components 5 are not connected to each other, and air inlets 503 are provided on each cold air intake component 5.

[0062] For the bottom edge position of the radiator 1, in this embodiment, the bottom of the deflector 4 described below is specifically used for blocking. For the air outlet provided on the cold air intake assembly 5, as a preferred implementation form, combined with Figure 6 as shown in, in this embodiment, an air outlet end face 504 facing the intake chamber is specifically formed on the cold air intake assembly 5. The air outlet on the cold air intake assembly 5 is the air outlet hole 505 opened on the air outlet end face 504. And preferably, the air outlet holes 505 constituting the air outlet in this embodiment are multiple and arranged at intervals on the air outlet end face 504.

[0063] During specific implementation, depending on the angle between the air outlet end face 504 and the air inlet side surface of the radiator 1, the air outlet holes 505 can be vertically opened on the air outlet end face 504, or the air outlet holes 505 can also be opened on the air outlet end face 504 at a certain inclination angle. As long as each air outlet hole 505 blows air towards the intake chamber. In this embodiment, the air outlet is composed of the air outlet holes 505, which has the advantages of simple structure and easy design and manufacture. At the same time, designing the air outlet holes 505 can also make the cold air blow towards the intake chamber at a higher flow rate, which is beneficial to the mixing of the cold air and the outside air of the vehicle.

[0064] In this embodiment, to ensure the use effect of the active intake grille 3, also as a preferred implementation form, a deflector 4 is also provided between the active intake grille 3 and the radiator 1, and the cold air intake assembly 5 is arranged on one side of the deflector 4. At this time, the deflector 4 can adopt a similar square frame structure in existing vehicles, and as mentioned above, the bottom of the deflector 4, such as Figure 4 as shown, has an outward convex part protruding towards the radiator 1 side, and this outward convex part is used to block the edge position on the side of the intake chamber where the cold air intake assembly 5 is not provided.

[0065] In addition, to further promote the mixing of the cold air from the vehicle air conditioning system 7 and the air entering from outside the vehicle, and to prevent the cold air from the vehicle air conditioning system 7 from only contacting a small part of the surface of the radiator 1 and flowing through the radiator 1 quickly, reducing the use effect of the cold air. Preferably, in this embodiment, some of the air outlets on the cold air intake assembly 5 are also specifically set to be inclined towards the active intake grille 3 direction, so that the cold air flowing out of the air outlet blows towards the active intake grille 3 side.

[0066] In this way, the cold air blowing towards the active intake grille 3 side will be scattered by the air entering through the active grille 3, can fully contact and mix with the outside air of the vehicle, reduce the overall temperature of the air contacting each heat exchange surface of the radiator 1, and further improve the use effect of the cold air and better improve the heat dissipation capacity of the radiator 1.

[0067] For the vehicle heat dissipation module of this embodiment, its specific use can be seen in the description in Embodiment 2 below. And through the setting of the cold air intake assembly 5 in the vehicle heat dissipation module of this embodiment, and the design makes the air inlet 503 of this assembly connected to the air outlet pipeline of the vehicle air conditioning system 7, and the air outlet blows air into the intake chamber. Thus, the vehicle air conditioning system 7 can be used to blow cold air to the air inlet side of the radiator 1, improving the heat dissipation capacity of the vehicle, so as to meet the cooling requirements of the vehicle when using the vehicle in a high-temperature environment.

[0068] Embodiment 2

[0069] This embodiment relates to a vehicle heat dissipation system, in combination with Figure 7 and Figure 8 As shown, it includes the vehicle heat dissipation module as described in Embodiment 1 provided in the vehicle, and also includes a controller 6 provided in the vehicle, as well as a vehicle air conditioning system 7 and a temperature detection unit connected to the controller 6.

[0070] Among them, in the cold air intake assembly 5 of the vehicle heat dissipation module, the air inlet 503 of the cold air intake assembly 5 is connected to the air outlet pipeline of the vehicle air conditioning system 7 through an intake pipe. In addition, the active intake grille 3 is connected to the controller 6, and the above temperature detection unit specifically includes a coolant temperature sensor 10 for detecting the coolant temperature in the vehicle powertrain, and an ambient temperature sensor 11 for detecting the external environment temperature of the vehicle.

[0071] Specifically, in this embodiment, the vehicle air conditioning system 7 can adopt an existing air conditioning system provided in the vehicle. Of course, this vehicle air conditioning system 7 should have a refrigeration function to be able to deliver low-temperature cold air outward. For the above vehicle powertrain, for ordinary fuel vehicle models, it generally refers to the engine, and at this time the coolant is mainly used to cool the engine. For hybrid vehicle models, it includes the engine and drive motors powered by power batteries and other structures, and the coolant is mainly used to cool the engine and the three-electric system.

[0072] In addition, for the intake pipe connecting to the air outlet pipeline of the vehicle air conditioning system 7, a conventional ventilation pipeline in the existing technology can be used, and the connection between this intake pipe and the air outlet pipeline of the vehicle air conditioning system 7, as well as the connection between this intake pipe and the air inlets 503 on each cold air intake assembly 5 through multiple branches, can also adopt conventional technical means in the existing technology. And for the flow of cold air in the vehicle air conditioning system 7 to the cold air intake assembly 5 through the connecting pipe, its specific illustration can be seen in Figure 7 as shown in

[0073] In this embodiment, the above controller 6 generally can adopt a vehicle ECU (Electronic Control Unit, electronic control unit, also known as "vehicle computer"), and its connection with other components can be asFigure 8 As shown. Of course, in addition to using the vehicle ECU, other control components installed in the vehicle and connected to the vehicle ECU, etc. can also be used. The coolant temperature sensor 10 and the ambient temperature sensor 11 that constitute the temperature detection unit can directly use the relevant sensing components in existing vehicles, and their signals can usually be obtained via the vehicle CAN bus.

[0074] In addition, in this embodiment, as a preferred implementation form, an air compression pump 8 connected to the controller 6 can also be serially connected on the intake pipe. By setting the air compression pump 8, the flow rate of cold air per unit time can be increased, which helps to improve the cooling effect on the radiator 1. In addition to setting the air compression pump 8, also as a preferred implementation form, further, an air flow control valve 9 connected to the controller 6 can also be serially connected on the intake pipe in this embodiment. The setting of the air flow control valve 9 can adjust the cold air flow rate according to the cooling performance requirements, which is conducive to achieving precise control.

[0075] During specific implementation, the above air compression pump 8 can use a conventional electric compression pump product in the vehicle, and the above air flow control valve 9 can generally use an electric proportional control valve. Thus, under the control signal of the controller 6, the start and stop of the air compression pump 8 can be controlled, and the opening ratio of the air flow control valve 9 can be adjusted.

[0076] Based on the above introduction, when the vehicle cooling system of this embodiment is in use, its control method specifically includes the following steps:

[0077] Step s11: Obtain the temperature of the coolant in the vehicle powertrain and the temperature of the external environment of the vehicle;

[0078] Step s12: According to the obtained temperature of the coolant and the temperature of the external environment of the vehicle, control the vehicle air conditioning system 7 to start refrigeration, control the active intake grille 3 to open according to a preset opening threshold value, and control the air flow control valve 9 to open according to a preset opening threshold value.

[0079] At this time, in detail, as shown in Figure 9 , after detecting the coolant temperature through the coolant temperature sensor 10 and detecting the external environment temperature through the ambient temperature sensor 11, the controller 6 can control the vehicle air conditioning system 7, the active intake grille 3 and the air flow control valve 9 according to the detected temperature values and the preset control mode. Of course, when the vehicle air conditioning system 7 starts refrigeration and the air flow control valve 9 is in the open state, the controller 6 also controls the air compression pump 8 to start.

[0080] In this embodiment, regarding the control of the opening degree of the active intake grille 3 and the opening ratio of the air flow control valve 9 by the controller 6 according to the temperature of the coolant and the temperature of the external environment, an exemplary preset data is shown in Table 1 below.

[0081] Table 1. Preset control parameters of the controller

[0082]

[0083] As can be seen from Table 1 above, as the ambient temperature and the coolant temperature increase, the opening ratio of the air flow control valve 9 should gradually increase. At the same time, the opening degree of the active intake grille 3 first increases and then decreases.

[0084] As the cold air in the vehicle air conditioning system 7 enters the intake chamber, that is, the intake side of the radiator 1, the controller 6 adjusts the air flow control valve 9 and the active intake grille 3 according to the temperature of the coolant and the temperature of the external environment, so as to adjust the air temperature in the intake chamber, and thereby improve the heat dissipation capacity of the radiator 1 by the mixed air flowing through the radiator 1.

[0085] Of course, it should also be noted that when both the detected ambient temperature and the coolant temperature are relatively low, the controller 6 should close the air flow control valve 9 and only use the control of the opening degree of the active intake grille 3 to adjust the heat dissipation capacity of the radiator 1. When the air flow control valve 9 is closed, the air compressor pump 8 should also be closed synchronously.

[0086] In addition, for the vehicle heat dissipation system of this embodiment, further, some of the air outlet ports on the cold air intake assembly 5 can be inclined towards the radiator 1, that is, the air flowing out of these air outlet ports blows towards the intake side surface of the radiator 1. At the same time, a wind speed sensor is provided on the air outlet side of the radiator 1 in this embodiment, and this wind speed sensor can generally be fixed to the frame of the radiator 1 through a bracket.

[0087] By making some of the air outlet ports face the radiator 1 and through the above-mentioned setting of the wind speed sensor. When the vehicle heat dissipation system of this embodiment is in use, its control method further includes the following steps:

[0088] Step s21: When the vehicle is in the parked state, turn on the cooling fan 2 and the active intake grille 3, and obtain the wind speed signal of the wind speed sensor;

[0089] Step s22: According to the obtained wind speed signal, control the vehicle air conditioning system 7 to start and control the air flow control valve 9 to open, so as to purge the radiator 1.

[0090] Among them, specifically, the parked state can be the vehicle flameout condition or the idle condition. And in combination with Figure 10As shown in the figure, it is to determine whether the sand grains, dust, etc. deposited on the radiator 1 have affected the ventilation performance of the radiator 1. In this embodiment, when the vehicle is parked, by turning on the cooling fan 2 and the active intake grille 3, the outside air can flow through the radiator 1. At the same time, the wind speed sensor located on the air outlet side of the radiator 1 is used to detect the air outlet wind speed of the radiator 1.

[0091] To ensure the rationality of wind speed detection, in specific implementation, the wind speed sensors can be, for example, multiple ones distributed at different positions on the entire surface of the radiator 1, and the average value of the detection results of each wind speed sensor is used as the obtained wind speed signal. And when the rotational speed of the cooling fan 2 is constant, if the wind speed signal detected by the wind speed sensor is lower than the wind speed threshold calibrated during the vehicle design, and the difference between the two is also above the set value, it can be determined that there are more deposits on the radiator 1, blocking the flow channel of the radiator 1 and increasing the wind resistance of the radiator 1.

[0092] It should be noted that the above-mentioned wind speed threshold calibrated during the vehicle design, that is, the wind speed value measured at the same rotational speed of the cooling fan 2 when the surface of the radiator 1 is in a clean state, can be obtained through simulation, and of course, it can also be obtained through brand-new real vehicle detection.

[0093] When judging the deposits on the radiator 1, the system of this embodiment can control the vehicle air conditioning system 7 to start and control the air flow control valve 9 to open to blow the radiator 1, so that the deposits are loosened and dropped due to the blowing and can enter the air outlet duct behind the radiator 1 and be discharged.

[0094] At this time, it should be noted that when blowing the radiator 1, the vehicle air conditioning system 7 can generally be turned on for cooling, or according to the different ambient temperatures, it can also be turned on for heating when the vehicle is parked. The active intake grille 3 is preferably in the open state, and of course, it can also be closed when the vehicle was in the flameout condition before. And when using the air outlet of the vehicle air conditioning system 7 for blowing, to ensure the blowing effect, the air flow control valve 9 can be opened to the maximum, and the air compression pump 8 should of course also be turned on.

[0095] The vehicle cooling system of this embodiment adopts the vehicle cooling module in Embodiment 1, and through the settings of the vehicle air conditioning system 7, the temperature detection unit, etc., when using the vehicle in a high-temperature environment, the cold air of the vehicle air conditioning system 7 can be used to cool the radiator 1, thereby improving the heat dissipation capacity of the radiator 1, meeting the cooling requirements of the vehicle when using the vehicle in a high-temperature environment, and improving the vehicle use quality.

[0096] Meanwhile, in this embodiment, by introducing the air of the vehicle air conditioning system 7 and making part of the air outlets blow towards the radiator 1, the purging of the radiator 1 can also be utilized to remove the deposits such as sand grains and dust adhering to the surface of the radiator 1, so that the self-cleaning of the radiator 1 can be realized in the parked state. Through this self-cleaning, the heat exchange efficiency of the radiator 1 can be improved, and it has very good practicability.

[0097] Embodiment III

[0098] This embodiment relates to a vehicle, in which the vehicle heat dissipation system in Embodiment II is provided.

[0099] The vehicle in this embodiment can be an ordinary fuel vehicle type, or it can also be a hybrid vehicle type with both a fuel engine and a power battery as two power sources.

[0100] Moreover, for the vehicle in this embodiment, by setting the above-mentioned vehicle heat dissipation system, the heat dissipation ability of the radiator 1 can be improved when using the vehicle in a high-temperature environment, the cooling requirement of the vehicle can be met, and the radiator 1 can also be self-cleaned. Therefore, the vehicle use quality can be improved, and it has very good practicability.

[0101] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle cooling module, characterized in that: It includes a radiator (1), an active intake grille (3) arranged upstream of the radiator (1) along the air flow direction, and a cooling fan (2) arranged downstream of the radiator (1), and further includes a cold air intake assembly (5) arranged between the active intake grille (3) and the radiator (1); The cold air intake assembly (5) is used to form an intake chamber between the active intake grille (3) and the radiator (1), air flows from the active intake grille (3) through the intake chamber into the radiator (1), the cold air intake assembly (5) is provided with an intake port (503) for connecting with the air outlet pipeline of the vehicle air conditioning system (7), and a plurality of air outlet ports for blowing air into the intake chamber; An air outlet end face (504) facing the intake chamber is formed on the cold air intake assembly (5), and the air outlet ports are air outlet holes (505) opened on the air outlet end face (504); Part of the air outlet ports are inclined towards the active intake grille (3), and part of the air outlet ports are inclined towards the radiator (1); The cold air intake assemblies (5) are arranged in multiple numbers, and the multiple cold air intake assemblies (5) are arranged in sequence around the side edge of the radiator (1).

2. The vehicle cooling module according to claim 1, characterized in that: The cold air intake assembly (5) is integrated on the radiator (1), or the cold air intake assembly (5) is detachably connected to the radiator (1).

3. The vehicle cooling module according to claim 1 or 2, characterized in that: A deflector (4) is arranged between the active intake grille (3) and the radiator (1), and the cold air intake assembly (5) is arranged on one side of the deflector (4).

4. A vehicle cooling system, characterized in that: It includes the vehicle cooling module according to any one of claims 1 to 3 provided in the vehicle, and further includes a controller (6) provided in the vehicle, and a vehicle air conditioning system (7) and a temperature detection unit connected to the controller (6); The intake port (503) of the cold air intake assembly (5) is connected to the air outlet pipeline of the vehicle air conditioning system (7) through an intake pipe, the active intake grille (3) is connected to the controller (6), and the temperature detection unit includes a coolant temperature sensor (10) for detecting the coolant temperature in the vehicle power assembly, and an ambient temperature sensor (11) for detecting the external environment temperature of the vehicle.

5. The vehicle cooling system according to claim 4, characterized in that: An air compression pump (8) connected to the controller (6) is connected in series on the intake pipe.

6. The vehicle cooling system according to claim 4, characterized in that: An air flow control valve (9) connected to the controller (6) is connected in series on the intake pipe.

7. The vehicle cooling system according to claim 6, characterized in that: An air speed sensor is provided on the air outlet side of the radiator (1).

8. The control method of the vehicle heat dissipation system according to claim 7, characterized in that, The control method includes: Obtain the temperature of the coolant in the vehicle powertrain and the temperature of the external environment of the vehicle; According to the obtained temperature of the coolant and the temperature of the external environment of the vehicle, control the vehicle air conditioning system (7) to start refrigeration, control the active intake grille (3) to open according to a preset opening threshold, and control the air flow control valve (9) to open according to a preset opening threshold.

9. The control method of the vehicle heat dissipation system according to claim 8, characterized in that, The control method further includes: In the parked state, turn on the radiator fan (2) and the active intake grille (3), and obtain the wind speed signal of the wind speed sensor; According to the obtained wind speed signal, control the vehicle air conditioning system (7) to start and control the air flow control valve (9) to open, so as to purge the radiator (1).

10. A vehicle, characterized in that: The vehicle is provided with the vehicle heat dissipation system according to any one of claims 4 to 7.

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