Air inlet structure, vehicle and air inlet control method

Abstract

The invention provides an air inlet structure, a vehicle and an air inlet control method. The air inlet structure comprises a first channel and a second channel, the first end of the first channel communicates with the first end of the second channel, and the second end of the second channel communicates with the atmosphere. An air inlet of an engine of the vehicle is formed in the first channel, and the pressure intensity in the second channel is larger than that in the first channel; and the heating assembly is arranged at the first end of the first channel and / or the first end of the second channel. According to the air inlet structure, the vehicle and the air inlet control method, the air inlet temperature of the engine can be guaranteed at the same time in the low-temperature environment, and the exhaust gas recirculation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an air intake structure and a vehicle. Background Art

[0002] The front of the vehicle is equipped with an air intake grille, which forms a channel for air circulation and can provide air to the engine so that the air and exhaust gas are mixed for combustion, thereby reducing fuel consumption through exhaust gas recirculation.

[0003] However, it was found during use that when the vehicle is traveling in a low-temperature environment, the temperature of the air entering the engine is too low, causing the engine to operate in a low-temperature condition, resulting in poor fuel evaporation and atomization, and worsening engine fuel consumption and emissions; and if the humidity in the air is high, it will also cause water vapor to condense or freeze. Therefore, in the existing technology, the air intake grille will be closed in a low-temperature environment to prevent the engine temperature from being too low, but closing the air intake grille will result in insufficient air participating in exhaust gas recirculation, resulting in increased fuel consumption.

[0004] Therefore, how to ensure the engine's intake temperature and improve the efficiency of exhaust gas recirculation in a low-temperature environment has become an urgent problem to be solved. Summary of the Invention

[0005] The present application provides an intake structure, a vehicle and an intake control method, which can effectively ensure the intake temperature of the engine and the efficiency of exhaust gas recirculation.

[0006] The present application provides an air intake structure, wherein the air intake structure comprises:

[0007] a first channel and a second channel, wherein a first end of the first channel is in communication with a first end of the second channel, and a second end of the second channel is in communication with the atmosphere; an air intake of an engine of the vehicle is disposed within the first channel, and a pressure within the second channel is greater than a pressure within the first channel;

[0008] A heating component is provided at the first end of the first channel and / or the first end of the second channel.

[0009] The air intake structure provided in the embodiment of the present application is formed with a first channel and a second channel that are independent of each other. The first end of the first channel is connected to the first end of the second channel, and the second channel is connected to the atmosphere. The air intake of the vehicle's engine is arranged inside the first channel, that is, the air intake of the engine is connected to the second channel through the first channel; since the pressure inside the second channel is greater than the pressure inside the first channel, after entering the second channel, the air will flow into the interior of the first channel and into the air intake of the engine under the action of pressure; at the same time, since a heating component is provided at the first end of the first channel and / or the first end of the second channel, the heating component can effectively heat the air during the process of the air flowing from the second channel to the first channel, which is beneficial to increase the intake temperature of the fuel vehicle under low temperature conditions, broaden the ambient temperature range that can be used for engine exhaust gas recirculation, and improve the efficiency of exhaust gas recirculation.

[0010] In the air intake structure as described above, the heating component is provided at the first end of the first channel and the first end of the second channel.

[0011] In the air intake structure as described above, the second end of the first channel and the second end of the second channel are both provided with an air intake grille, and the opening of the air intake grille provided at the second end of the first channel is smaller than the opening of the air intake grille provided at the second end of the second channel.

[0012] The air intake structure as described above, wherein the air intake structure is installed on the front side of the engine compartment of the vehicle, and the first end of the first channel and the first end of the second channel are connected through the engine compartment;

[0013] The engine is arranged inside the nacelle.

[0014] In the air intake structure as described above, the air intake port further includes an air duct, one end of the air duct extends into the interior of the first channel, and the other end of the air duct is communicated with the air intake port of the engine.

[0015] In the air intake structure as described above, a mounting plate is connected to the first end of the first channel, a positioning hole is opened on the mounting plate, and the air intake passes through the positioning hole and is connected to the mounting plate.

[0016] The air intake structure as described above, wherein the air intake structure comprises a base, and the first channel and the second channel are both opened on the base;

[0017] The base includes a base shell and a partition plate. The partition plate is arranged inside the base shell. The inside of the base shell is divided by the partition plate to form the first channel and the second channel which are independent of each other.

[0018] In the air intake structure as described above, the heating component is a heat dissipation component of the engine of the vehicle.

[0019] The present application also provides a vehicle, wherein the vehicle includes the air intake structure as described above.

[0020] The present application also provides an air intake control method, wherein the air intake control method is implemented using the air intake structure described above and is used to control the air intake of the vehicle described above, and the air intake control method includes:

[0021] detecting the real-time temperature at the air intake of the engine of the vehicle;

[0022] When the real-time temperature is lower than the preset temperature, closing the air intake grille at the second end of the first channel or reducing its opening, and opening the air intake grille at the second end of the second channel or increasing its opening;

[0023] When the real-time temperature is equal to or higher than the preset temperature, the air intake grille at the second end of the first channel and the air intake grille at the second end of the second channel are opened, or the opening of the air intake grille at the second end of the first channel and the air intake grille at the second end of the second channel are increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the air intake structure provided in an embodiment of the present application;

[0025] Figure 2 A schematic structural diagram of the air intake structure base provided in an embodiment of the present application;

[0026] Figure 3 A schematic structural diagram of the heating assembly of the air intake structure provided in an embodiment of the present application.

[0027] Description of Figure Numbers:

[0028] 100. Air intake structure; 1. Base; 11. First channel; 12. Second channel; 13. Base shell; 14. Partition; 2. Air intake grille; 3. Heating assembly; 31. Hollow portion; 32. Heat exchange channel; 4. Air guide tube; 5. Mounting plate; 51. Positioning hole; 200. Vehicle body; 201. Engine compartment; 300. Engine; 301. Cooling water drain pipe; 302. Cooling water supply pipe. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0032] like Figure 1 and Figure 2 As shown, the present application provides an air intake structure 100, wherein the air intake structure 100 includes a first channel 11 and a second channel 12, the first channel 11 and the second channel 12 are both through along the front and rear direction of the vehicle, the first channel 11 and the second channel 12 both have a first end and a second end, and the first end is an end facing the rear of the vehicle, and the second end is an end facing the front of the vehicle.

[0033] The first end of the first channel 11 is connected to the first end of the second channel 12, and the second end of the second channel 12 is connected to the atmosphere. The air intake of the vehicle's engine is arranged inside the first channel 11, that is, the air intake of the engine is connected to the second channel 12 through the first channel 11, and the pressure inside the second channel 12 is greater than the pressure inside the first channel 11.

[0034] The heating assembly 3 is disposed at the first end of the first channel 11 and / or the first end of the second channel 12 , and is used to heat the air flowing from the second channel 12 into the first channel 11 .

[0035] During the use of the intake structure 100 provided in the present application, after the air enters the second channel 12, it will flow into the interior of the first channel 11 and into the air intake of the engine under the action of pressure; at the same time, since a heating component 3 is provided at the first end of the first channel 11 and / or the first end of the second channel 12, the heating component 3 can effectively heat the air during the flow of air from the second channel 12 to the first channel 11, which is beneficial to increase the intake temperature of fuel vehicles under low temperature conditions, broaden the ambient temperature range in which the engine exhaust gas recirculation can be used, and improve the efficiency of exhaust gas recirculation (EGR).

[0036] Alternatively, as Figure 1 As shown, the air intake structure 100 provided in the present application, wherein the first end of the first channel 11 and the second end of the second channel 12 are both provided with a heating component 3. In the process of air flowing from the second channel 12 to the first channel 11, the air can flow through the two heating components 3 respectively to be heated twice, thereby further increasing the temperature of the air entering the engine air intake.

[0037] like Figure 1 As shown, the air intake structure 100 provided in the present application, wherein an air intake grille 2 is provided at the second end of the first channel 11 and the second end of the second channel 12, the air intake grille 2 at the first channel 11 is used to control the start or stop of air entering the cabin 201 or directly entering the engine 300, and to adjust the air intake volume of the air entering the cabin 201 or directly entering the engine 300 from the first channel 11; the air intake grille 2 at the second channel 12 is used to control the start or stop of air entering the cabin 201, and to adjust the air intake volume of the air entering the cabin 201 from the second channel 12.

[0038] The specific position and number of the second channels 12 can be flexibly selected according to design requirements to ensure that sufficient air can be delivered to the engine and the exhaust gas recirculation efficiency of the engine is improved.

[0039] Optionally, the opening of the air intake grille 2 provided at the second end of the first channel 11 is smaller than the opening of the air intake grille 2 provided at the second end of the second channel 12. This ensures that the pressure inside the first channel 11 is lower than the pressure inside the second channel 12, so that after entering the second channel 12, the air flows toward the first channel 11 under the action of the pressure and then flows into the air intake of the engine.

[0040] like Figure 1As shown, the present application provides an air intake structure 100, wherein the air intake structure 100 is installed on the front side of the vehicle's engine compartment 201, with the first end of the first channel 11 and the first end of the second channel 12 communicating through the engine compartment 201; and the engine 300 is disposed within the engine compartment 201. As air flows from the second channel 12 to the first channel 11, it can be heated again by utilizing the heat from the surface of the engine 300 within the engine compartment 201 as it passes through the engine compartment 201. Combined with the two heating components, the air can be heated three times in total, thereby effectively ensuring the heating effect and raising the temperature of the air entering the engine 300.

[0041] like Figure 1 and Figure 3 As shown, the air intake structure 100 provided by the present application, wherein the heating component 3 is a heat exchange plate, has a smaller size along the front-to-rear direction of the vehicle, and occupies a smaller space in the cabin 201 along the front-to-rear direction of the vehicle after assembly.

[0042] A heat exchange channel 32 for the flow of heat exchange medium is formed inside the heat exchange plate. The heat exchange medium can be hot water or hot air to exchange heat with the air outside the heat exchange plate, thereby heating the air.

[0043] A hollow portion 31 is formed between adjacent heat exchange channels 32. The through direction of the hollow portion 31 is the same as the through direction of the first channel 11 and the through direction of the second channel 12. The hollow portion 31 connects the first channel 11 with the interior of the cabin 201 or the second channel 12 with the interior of the cabin 201. By providing the hollow portion 31, the air can be heated while ensuring smooth circulation of the air.

[0044] like Figure 1 and Figure 2 As shown, the air intake structure 100 provided in the present application, wherein the air intake of the engine also includes an air duct 4, which is arranged in the second connecting area at the first end of the first channel 11, and the penetration direction of the air duct 4 is the same as the penetration direction of the first channel 11. One end of the air duct 4 extends into the interior of the first channel 11, and the other end of the air duct 4 is connected with the air intake of the engine 300, connecting the air intake of the engine 300 with the air duct 4 inside the first channel 11. By setting the air duct 4, the flow direction of the air can be guided and concentrated when the air enters the engine 300, thereby reducing the impact of air turbulence on its flow speed.

[0045] like Figure 2 As shown, the air intake structure 100 provided in the present application, wherein a mounting plate 5 is connected to the first end of the first channel 11, a positioning hole 51 is opened on the mounting plate 5, and the air intake of the engine 300 passes through the positioning hole 51 and is connected to the mounting plate 5, so as to provide a mounting basis for the air intake of the engine 300 and ensure the stability of the air intake of the engine 300 after assembly.

[0046] Optionally, the air inlet of the engine 300 may also be directly fixedly connected to the inner surface of the channel, so as to omit the structure of the mounting plate 5 and simplify the installation process of the air inlet of the engine 300 .

[0047] There is a gap between one side edge of the mounting plate 5 and the periphery of the second channel 12 , and the gap communicates with the interior of the first channel 11 and the interior of the nacelle 201 .

[0048] like Figure 1 and Figure 2 As shown, the air intake structure 100 provided in the present application includes a base 1, and a first channel 11 and a second channel 12 are both formed on the base 1. Specifically, the base 1 includes a base shell 13 and a partition 14. The base shell 13 is a cylindrical structure that passes through the front and rear directions of the vehicle. The partition 14 is arranged inside the base shell 13 and is sealed and fixedly connected to the inner surface of the base shell 13. The base shell 13 is a plate-like structure extending along the front and rear directions of the vehicle. The interior of the base shell 13 is separated by the partition 14 to form a first channel 11 and a second channel 12 that are independent of each other.

[0049] The air intake structure 100 provided in the present application, wherein the air intake grille 2 is an electrically controlled air intake grille, which is directly electrically connected to the vehicle's electronic control system. The opening, closing and opening degree of each air intake grille 2 are controlled by the vehicle's electronic control system according to the temperature in the operating environment of the engine 300.

[0050] like Figure 1 As shown, the air intake structure provided by the present application, wherein the heating component 3 directly adopts the heat dissipation component of the vehicle's engine to realize the recovery and utilization of the engine's waste heat.

[0051] Optionally, the heating component 3 of the air intake structure 100 is connected to the cooling water drain pipe 301 of the engine 300. The temperature of the cooling water increases after cooling the engine 300. At this time, the cooling water drain pipe 301 is connected to the heating component 3, so that the cooling water that has absorbed the heat of the engine 300 can flow into the heating component 3 as a heat exchange medium, and exchange the heat absorbed from the engine 300 to the air to achieve heat recovery and utilization.

[0052] Optionally, the heating component 3 of the air intake structure 100 is connected to the cooling water supply pipe 302 of the engine 300. After the cooling water exchanges heat with the air flowing through the hollow portion 31 while flowing in the heating component 3, the temperature is reduced and the cooling water is transported to the engine 300 again through the cooling water supply pipe 302 to cool the engine 300.

[0053] like Figure 1 As shown, the present application also provides a vehicle, wherein the vehicle includes a vehicle body 200, an engine 300 and the air intake structure 100 as described above.

[0054] The vehicle body 200 and the air intake structure 100 are installed on the vehicle body. The air intake grille 2 of the air intake structure 100 not only adjusts the air flow state, but also improves the aesthetics of the vehicle.

[0055] An engine compartment 201 is formed inside the vehicle body 200 for arranging the engine 300 and the air intake structure 100 provided in the present application.

[0056] The engine 300 has an air intake for admitting air to provide oxygen for combustion of fuel.

[0057] Optionally, the vehicle further includes an electronic control system and a temperature sensor. The temperature sensor is located within the air intake of the engine 300. The air intake grille 2 and the temperature sensor are both electrically connected to the electronic control system. The electronic control system controls the opening, closing, and degree of opening of the air intake grille 2 based on the temperature detected by the temperature sensor.

[0058] The vehicle provided in the embodiment of the present application uses an air intake structure 100 whose base 1 is formed with a first channel 11 and a second channel 12 which are independent of each other. The first end of the first channel 11 is communicated with the interior of the cabin 201 and the air intake of the engine 300 at the same time, and the first end of the second channel 12 is communicated with the cabin 201. When the air intake grille 2 at the second end of the first channel 11 is closed and the air intake grille 2 at the second end of the second channel 12 is opened, air enters the interior of the cabin 201 through the second channel 12, thereby increasing the pressure inside the cabin 201. At the same time, the air intake of the engine 300 sucks the interior of the first channel 11, so that the pressure inside the cabin 201 is greater than the pressure inside the first channel 11. At this time, the air inside the cabin 201 enters the first channel 11 and the second channel 12 in sequence. The air intake of the engine 300 is provided with a heating component 3 at the first end of the second channel 12 and / or at the connection between the first end of the first channel 11 and the cabin 201. In the process of air entering the cabin 201 from the second channel 12 or entering the first channel 11 from the cabin 201, the air can be effectively heated, thereby increasing the temperature of the air entering the engine 300, which is beneficial to increasing the intake temperature of fuel vehicles under low temperature conditions, and at the same time broadening the ambient temperature range in which the engine exhaust gas recirculation can be used. Under low temperature conditions, fresh air with suitable temperature can still be provided to the engine for exhaust gas mixed combustion, thereby improving the fuel evaporation atomization effect and the sufficiency of fuel combustion, thereby achieving the effect of reducing vehicle fuel consumption and reducing vehicle pollutant emissions.

[0059] like Figure 2 As shown, the present application also provides an intake control method, wherein the intake control method is implemented using the above intake structure 100 and is used to control the intake of the vehicle as described above, and the intake control method includes:

[0060] Detecting the real-time temperature at the air intake of the vehicle's engine;

[0061] When the real-time temperature is lower than the preset temperature, the air intake grille 2 at the second end of the first channel 11 is closed or its opening is reduced, and the air intake grille 2 at the second end of the second channel 12 is opened or its opening is increased, thereby increasing the flow rate of air entering the interior of the cabin 201 from the second channel 12, or allowing air to enter the interior of the cabin 201 only from the second channel 12, so as to form a low-pressure area inside the first channel 11, so that the air inside the cabin 201 flows toward the interior of the first channel 11 and enters the air intake of the engine 300.

[0062] When the real-time temperature is equal to or higher than the preset temperature, the air intake grille 2 at the second end of the first channel 11 and the air intake grille 2 at the second end of the second channel 12 are opened, or the opening of the air intake grille 2 at the second end of the first channel 11 and the air intake grille 2 at the second end of the second channel 12 are increased, so that air can enter the cabin 201 through the first channel 11 and the second channel 12 at the same time. At this time, the pressure in the first channel 11, the second channel 12 and the cabin 201 is basically balanced, and the air flows from the front to the rear of the vehicle. In this process, after the air enters the first channel 11, a part of the air flows directly into the air intake of the engine 300, providing oxygen for the combustion of the fuel.

[0063] Optionally, the air intake control method provided herein can further adjust the opening of each air intake grille 2 based on the temperature within the cabin 201 while all air intake grilles 2 are open, thereby adjusting the temperature of the air entering the air intake of the engine 300. For example, by increasing the opening of the air intake grille 2 at the first channel 11 and decreasing the opening of the air intake grille 2 at the second channel 12, the temperature of the air entering the engine 300 can be reduced. By decreasing the opening of the air intake grille 2 at the first channel 11 and increasing the opening of the air intake grille 2 at the second channel 12, the temperature of the air entering the engine 300 can be increased.

[0064] The intake control method provided in the embodiment of the present application is that the temperature of the air directly entering the first channel 11 through the air intake grille 2 is relatively low, while the temperature of the air entering the first channel 11 through the engine compartment 201 is relatively high after being heated by the heating component 3. In this way, the opening, closing and opening degree of the air intake grille 2 at the first channel 11 and the air intake grille 2 at the second channel 12 are adjusted according to the temperature at the air intake of the engine. The ratio of the air directly entering the first channel 11 and the air entering the first channel 11 from the engine compartment 201 can be adjusted, thereby adjusting the temperature of the air entering the air intake of the engine 300 to ensure the temperature of the air entering the engine 300, which is beneficial to increasing the intake temperature of fuel vehicles under low temperature conditions, and at the same time broadening the ambient temperature range that can be used for engine exhaust gas recirculation. Under low temperature conditions, fresh air with suitable temperature can still be provided to the engine for exhaust gas mixed combustion, thereby improving the fuel evaporation atomization effect and the sufficiency of fuel combustion, thereby achieving the effect of reducing vehicle fuel consumption and reducing vehicle pollutant emissions.

Claims

1. An air intake structure, characterized in that: The air intake structure comprises: a first channel and a second channel, wherein a first end of the first channel is in communication with a first end of the second channel, and a second end of the second channel is in communication with the atmosphere; an air intake of an engine of the vehicle is disposed within the first channel, and a pressure within the second channel is greater than a pressure within the first channel; A heating component is provided at the first end of the first channel and / or the first end of the second channel.

2. The air intake structure according to claim 1, characterized in that: The heating component is disposed at the first end of the first channel and the first end of the second channel.

3. The air intake structure according to claim 1, characterized in that: An air intake grille is provided at the second end of the first channel and the second end of the second channel. The opening of the air intake grille provided at the second end of the first channel is smaller than the opening of the air intake grille provided at the second end of the second channel.

4. The air intake structure according to claim 1, characterized in that: The air intake structure is mounted on the front side of the engine compartment of the vehicle, and the first end of the first channel and the first end of the second channel are in communication with each other through the engine compartment; The engine is arranged inside the nacelle.

5. The air intake structure according to claim 1, characterized in that: The air intake further includes an air duct, one end of which extends into the interior of the first channel, and the other end of which is communicated with the air intake of the engine.

6. The air intake structure according to claim 1, characterized in that: A mounting plate is connected to a first end of the first channel. A positioning hole is formed on the mounting plate. The air inlet passes through the positioning hole and is connected to the mounting plate.

7. The air intake structure according to claim 1, characterized in that: The air intake structure includes a base, and the first channel and the second channel are both opened on the base; The base includes a base shell and a partition plate. The partition plate is arranged inside the base shell. The inside of the base shell is divided by the partition plate to form the first channel and the second channel which are independent of each other.

8. The air intake structure according to claim 1, characterized in that: The heating component is a heat dissipation component of the engine of the vehicle.

9. A vehicle, characterized in that: The vehicle includes the air intake structure according to any one of claims 1 to 8.

10. An air intake control method, characterized in that: The air intake control method is implemented using the air intake structure according to any one of claims 1 to 8 and is used to control the air intake of the vehicle according to any one of claims 9. The air intake control method includes: detecting the real-time temperature at the air intake of the engine; When the real-time temperature is lower than the preset temperature, closing the air intake grille at the second end of the first channel or reducing its opening, and opening the air intake grille at the second end of the second channel or increasing its opening; When the real-time temperature is equal to or higher than the preset temperature, the air intake grille at the second end of the first channel and the air intake grille at the second end of the second channel are opened, or the opening of the air intake grille at the second end of the first channel and the air intake grille at the second end of the second channel are increased.

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