An opening degree adjusting method and device of an active grille shutter and a vehicle

Abstract

The application provides an opening degree adjustment method and device of an active air intake grille and a vehicle. The method comprises the following steps: determining a reference opening degree value of the active air intake grille according to a current running state of the vehicle; determining a preset adjustment mode and a preset adjustment value of the active air intake grille, and determining a candidate opening degree value according to the reference opening degree value, the preset adjustment mode and the preset adjustment value; determining a first energy consumption change corresponding to a wind resistance coefficient and a second energy consumption change corresponding to a cooling performance according to the candidate opening degree value; and determining whether to adjust the active air intake grille according to the candidate opening degree value according to the first energy consumption change and the second energy consumption change. The method can ensure that the opening degree of the active air intake grille is adjusted each time to reduce the overall energy consumption of the vehicle, thereby ensuring the stability of the vehicle running.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method and device for adjusting the opening of an active air intake grille and a vehicle. Background Art

[0002] In recent years, an increasing number of vehicles have been equipped with active grill shutters (AGS). Closing the AGS during driving can reduce the vehicle's drag coefficient, improving driving stability and fuel economy. However, this reduces the air intake of the vehicle's front-end cooling system, reducing the vehicle's heat dissipation capacity. This requires the cooling system to increase heat dissipation power, which in turn increases the vehicle's low-voltage energy consumption.

[0003] Current technical solutions typically obtain the vehicle's current operating state and determine the corresponding opening value based on a preset correspondence between operating state and opening value. However, adjusting the opening value of the active air intake grille using this method cannot guarantee that each adjustment will reduce the vehicle's overall energy consumption, affecting vehicle operating stability.

[0004] Therefore, how to ensure that the vehicle's energy consumption can be reduced and the stability of vehicle operation can be guaranteed after each adjustment of the opening value of the active air intake grille is a technical problem that technical personnel in this field currently need to solve. Summary of the Invention

[0005] The purpose of this application is to provide a method, device, terminal equipment, a vehicle and a computer-readable storage medium for adjusting the opening of an active air intake grille, aiming to ensure that each time the opening value of the active air intake grille is adjusted, the vehicle's overall energy consumption can be reduced and the stability of the vehicle's operation can be ensured.

[0006] In a first aspect, the present application provides a method for adjusting the opening of an active air intake grille. The method comprises:

[0007] determining a reference opening value of the active air intake grille according to a current operating state of the vehicle;

[0008] Determining a preset adjustment mode and a preset adjustment value of the active air intake grille, and determining a candidate opening value according to the reference opening value, the preset adjustment mode and the preset adjustment value;

[0009] determining a first energy consumption change corresponding to a drag coefficient and a second energy consumption change corresponding to a cooling performance according to the candidate opening value;

[0010] Determining whether to adjust the active air intake grille according to the candidate opening value is determined according to the first energy consumption change amount and the second energy consumption change amount.

[0011] In one embodiment, determining a first energy consumption change corresponding to a drag coefficient and a second energy consumption change corresponding to a cooling performance according to the candidate opening value includes:

[0012] A first correspondence between an opening value set according to a drag coefficient and an energy consumption change is obtained, and a first energy consumption change corresponding to the candidate opening value is determined according to the first correspondence.

[0013] In one embodiment, obtaining a first correspondence between an opening value set according to a drag coefficient and an energy consumption change, and determining a first energy consumption change corresponding to the candidate opening value according to the first correspondence includes:

[0014] Obtaining a first correspondence between a driving speed, an opening value, and an energy consumption change of the vehicle set according to a drag coefficient;

[0015] A first energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the first corresponding relationship.

[0016] In one embodiment, determining a first energy consumption change corresponding to a drag coefficient and a second energy consumption change corresponding to a cooling performance according to the candidate opening value includes:

[0017] A second correspondence between an opening value set according to cooling performance and an energy consumption change is acquired, and a second energy consumption change corresponding to the candidate opening value is determined according to the second correspondence.

[0018] In one embodiment, obtaining a second correspondence between an opening value set according to cooling performance and a change in energy consumption, and determining a second change in energy consumption corresponding to the candidate opening value according to the second correspondence includes:

[0019] Obtaining a second correspondence between the vehicle's running speed, the opening value, and the energy consumption change set according to cooling performance;

[0020] A second energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the second corresponding relationship.

[0021] In one embodiment, obtaining a second correspondence between an opening value set according to cooling performance and a change in energy consumption, and determining a second change in energy consumption corresponding to the candidate opening value according to the second correspondence includes:

[0022] Obtaining a second correspondence between the ambient temperature set according to the cooling performance, the driving speed of the vehicle, the opening value, and the energy consumption change;

[0023] According to the second correspondence relationship, a second energy consumption change corresponding to the current ambient temperature, a current driving speed of the vehicle, and the candidate opening degree value is determined.

[0024] In one of the embodiments, the determining the reference opening degree value of the active grille shutter according to the current operating state of the vehicle comprises:

[0025] Obtaining current operating states corresponding to a plurality of influencing factors of the active grille shutter of the vehicle respectively;

[0026] According to each of the current operating states, a candidate reference opening degree value corresponding to the active grille shutter is determined respectively;

[0027] The maximum value of each of the candidate reference opening degree values is determined as the reference opening degree value.

[0028] In one of the embodiments, the method for adjusting the opening degree of the active grille shutter further comprises:

[0029] After the vehicle is started, it is determined whether the active grille shutter is successfully self-checked;

[0030] If the self-checking is successful, the step of determining the reference opening degree value of the active grille shutter according to the current operating state of the vehicle is entered;

[0031] If the self-checking fails, the maximum opening degree of the active grille shutter is determined, and the active grille shutter is controlled to keep open in the maximum opening degree.

[0032] In a second aspect, the application further provides a device for adjusting the opening degree of an active grille shutter. The device comprises:

[0033] A first determining module for determining the reference opening degree value of the active grille shutter according to the current operating state of the vehicle;

[0034] A second determining module for determining a preset adjustment mode and a preset adjustment value of the active grille shutter, and determining a candidate opening degree value according to the reference opening degree value, the preset adjustment mode, and the preset adjustment value;

[0035] A third determining module for determining a first energy consumption change corresponding to the wind resistance coefficient and a second energy consumption change corresponding to the cooling performance according to the candidate opening degree value;

[0036] An adjusting module for determining whether to adjust the active grille shutter according to the candidate opening degree value according to the first energy consumption change and the second energy consumption change.

[0037] In a third aspect, the present application further provides a terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0038] In a fourth aspect, the present application also provides a vehicle, comprising a vehicle body and a controller, wherein the controller executes the steps of the above method.

[0039] In a fifth aspect, the present application further provides a computer-readable storage medium storing a computer program, which implements the steps of the above method when executed by a processor.

[0040] The present application provides a method for adjusting the opening of an active air intake grille. After determining a baseline opening value of the active air intake grille according to the current operating state of the vehicle, a preset adjustment method and a preset adjustment value of the active air intake grille are determined, and a candidate opening value is determined according to the baseline opening value, the preset adjustment method and the preset adjustment value; a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance are determined according to the candidate opening value; since the effects of adjusting the opening of the active air intake grille on the drag coefficient and the cooling performance are opposite, one of the first energy consumption change and the second energy consumption change is an energy consumption increase and the other is an energy consumption decrease. This method predicts the corresponding energy consumption increase and energy consumption decrease of the vehicle after adjusting the opening of the active air intake grille according to the candidate opening value, and then determines whether to adjust the active air intake grille based on the energy consumption change of the entire vehicle. This can ensure that each adjustment of the opening of the active air intake grille can reduce the overall energy consumption of the vehicle, thereby ensuring the stability of the vehicle operation.

[0041] It can be understood that the embodiment of the present application provides an active air intake grille opening adjustment device, a terminal device and a vehicle computer readable storage medium, which have the same beneficial effects as the above-mentioned active air intake grille opening adjustment method, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 A flow chart of a method for adjusting the opening of an active air intake grille provided in an embodiment of the present application;

[0044] Figure 2A flow chart of another method for adjusting the opening of an active air intake grille provided in an embodiment of the present application;

[0045] Figure 3 A schematic structural diagram of an active air intake grille opening adjustment device provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may 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 obscuring the description of the present application with unnecessary detail.

[0048] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0049] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0050] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0051] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0052] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present application include a particular feature, structure, or characteristic described in conjunction with that embodiment. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized. "Multiple" means "two or more."

[0053] An embodiment of the present application provides a method for adjusting the opening of an active air intake grille, which can be executed by a processor of a terminal device when running a corresponding computer program.

[0054] Figure 1 This is a flow chart of a method for adjusting the opening of an active air intake grille provided in an embodiment of the present application. For ease of illustration, only the portion related to this embodiment is shown. The method provided in this embodiment includes the following steps:

[0055] S100: Determine a reference opening value of the active air intake grille according to the current operating state of the vehicle.

[0056] The reference opening value refers to the opening of the active grille determined based on the current operating state of the vehicle. Specifically, the current operating state corresponding to the influencing factors of the active grille of the vehicle is obtained, and the reference opening value of the active grille is determined based on the current operating state.

[0057] It is understood that factors influencing the opening of the active air intake grille include coolant temperature, engine temperature, oil temperature, vehicle speed, accelerator pedal position, water pump pressure, air conditioning status, and fan status. This embodiment does not limit the specific types of influencing factors, and the reference opening value of the active air intake grille can be determined based on a combination of multiple influencing factors. For example, in one actual operation, the coolant outlet temperature and fan operating power are obtained, and the reference opening value of the active air intake grille is determined based on the coolant outlet temperature and fan operating power.

[0058] S200: Determine a preset adjustment method and a preset adjustment value of the active air intake grille, and determine a candidate opening value according to the reference opening value, the preset adjustment method and the preset adjustment value.

[0059] The preset adjustment mode includes increasing the opening degree and decreasing the opening degree; the increasing opening degree means that the current opening degree value of the active air intake grille is greater than the opening degree value before adjustment after adjusting the opening degree value of the active air intake grille each time; on the contrary, the decreasing opening degree means that the current opening degree value of the active air intake grille is less than the opening degree value before adjustment after adjusting the opening degree value of the active air intake grille each time.

[0060] The preset adjustment value refers to the adjustment amplitude (change amount) when adjusting the opening degree of the active air intake grille; the specific value of the preset adjustment value can be determined according to actual needs. It can be understood that the greater the preset adjustment value, the greater the adjustment amplitude of the active air intake grille, the greater the adjustment change amount, and the more rough the adjustment of the active air intake grille; the smaller the preset adjustment value, the smaller the adjustment amplitude of the active air intake grille, the smaller the adjustment change amount, and the more accurate the adjustment of the active air intake grille.

[0061] In addition, the preset adjustment value can be a fixed value, that is, the adjustment amplitude of the active air intake grille is the same each time; or the corresponding preset adjustment value can be determined according to different base station opening degree values, that is, the adjustment amplitude of the active air intake grille can be different for different base opening degree values, and this embodiment does not limit this.

[0062] The candidate opening degree value refers to the adjusted opening degree value of the active air intake grille initially determined, and it is further needed to determine whether to adjust the active air intake grille according to the candidate opening degree value. Specifically, after determining the preset adjustment mode and the preset adjustment value of the active air intake grille, the candidate opening degree is determined according to the reference opening degree, the preset adjustment mode and the preset adjustment value. For example, if the reference opening degree value is 60°, the preset adjustment mode is increasing the opening degree, and the preset adjustment value is 20°, the corresponding candidate opening degree value is 60°+20°=80°.

[0063] S300: determining a first energy consumption change amount corresponding to the wind resistance coefficient and a second energy consumption change amount corresponding to the cooling performance according to the candidate opening degree value.

[0064] In this step, after the candidate opening degree value is determined, the first energy consumption change amount corresponding to the wind resistance coefficient and the second energy consumption change amount corresponding to the cooling performance are determined.

[0065] It should be noted that during the driving process of the vehicle, the smaller the opening degree of the active air intake grille, the smaller the wind resistance coefficient of the vehicle, that is, the smaller the energy consumption value corresponding to the power system of the vehicle; at the same time, since the smaller the opening degree of the active air intake grille, the smaller the air intake amount of the cooling system of the vehicle, the cooling capacity of the vehicle is reduced, and therefore the cooling system needs to increase the heat dissipation power, thereby increasing the energy consumption value of the cooling system.

[0066] Therefore, if the preset adjustment method is to increase the opening, the drag coefficient will increase, thereby increasing the energy consumption value of the power system, that is, the first energy consumption change corresponding to the drag coefficient is the increase in energy consumption value; correspondingly, the cooling system can reduce the heat dissipation power and reduce the energy consumption value of the cooling system. The second energy consumption change corresponding to the cooling system is the decrease in energy consumption value.

[0067] If the preset adjustment method is to reduce the opening, the drag coefficient will be reduced, thereby reducing the energy consumption value of the power system, that is, the first energy consumption change corresponding to the drag coefficient is the energy consumption value reduction; correspondingly, the air intake volume of the cooling system is reduced, and the heat dissipation power needs to be increased, which increases the energy consumption value of the cooling system. The second energy consumption change corresponding to the cooling system is the energy consumption value increase.

[0068] S400: Determine whether to adjust the active air intake grille according to the candidate opening value based on the first energy consumption change amount and the second energy consumption change amount.

[0069] Specifically, after determining the first energy consumption change and the second energy consumption change, compare the magnitude relationship between the first energy consumption change and the second energy consumption change, and determine the corresponding energy consumption increase and energy consumption decrease of the vehicle after adjusting the opening of the active air intake grille according to the candidate opening value based on the comparison result, that is, determine the energy consumption change trend of the entire vehicle, and determine whether to adjust the active air intake grille according to the candidate opening value based on the energy consumption change trend of the entire vehicle.

[0070] It can be understood that if the energy consumption change trend of the whole vehicle is determined to be increasing according to the comparison results, it means that if the opening of the active air intake grille is adjusted according to the preset adjustment method and the preset adjustment value, the energy consumption of the whole vehicle will increase, so the active air intake grille is not adjusted according to the candidate opening value, and the baseline opening value is kept unchanged; if the energy consumption change trend of the whole vehicle is decreasing, it means that if the opening of the active air intake grille is adjusted according to the preset adjustment method and the preset adjustment value, the energy consumption of the whole vehicle will decrease, so the active air intake grille is adjusted according to the candidate opening value.

[0071] An embodiment of the present application provides a method for adjusting the opening of an active air intake grille. After determining a baseline opening value of the active air intake grille according to the current operating state of the vehicle, a preset adjustment method and a preset adjustment value of the active air intake grille are determined, and a candidate opening value is determined according to the baseline opening value, the preset adjustment method and the preset adjustment value; a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance are determined according to the candidate opening value; since the effects of adjusting the opening of the active air intake grille on the drag coefficient and the cooling performance are opposite, one of the first energy consumption change and the second energy consumption change is an energy consumption increase and the other is an energy consumption decrease. This method predicts the corresponding energy consumption increase and energy consumption decrease of the vehicle after adjusting the opening of the active air intake grille according to the candidate opening value, and then determines whether to adjust the active air intake grille based on the energy consumption change of the entire vehicle. This can ensure that each adjustment of the opening of the active air intake grille can reduce the overall energy consumption of the vehicle, thereby ensuring the stability of the vehicle operation.

[0072] Based on the above embodiment, this embodiment further illustrates and optimizes the technical solution. Specifically, in this embodiment, determining a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance based on the candidate opening value includes:

[0073] A first correspondence between an opening value set according to a drag coefficient and an energy consumption change is obtained, and a first energy consumption change corresponding to a candidate opening value is determined according to the first correspondence.

[0074] It should be noted that the first correspondence between the opening value and the energy consumption change can be set in advance according to the drag coefficient, that is, the first correspondence between the opening value and the energy consumption change caused by the drag coefficient can be set; after the candidate opening value is determined, the first energy consumption change corresponding to the drag coefficient is determined according to the candidate opening value and the pre-set first correspondence.

[0075] More specifically, a correspondence chart or functional expression can be used to represent the first correspondence between the opening value and the energy consumption change caused by the drag coefficient, which is not limited in this embodiment. If a correspondence chart is used to represent the first correspondence between the opening value and the energy consumption change, after obtaining a candidate opening value, the energy consumption change corresponding to the candidate opening value is searched for based on the correspondence chart to determine the first energy consumption change.

[0076] According to the method of this embodiment, the first energy consumption change corresponding to the candidate opening value can be determined quickly and accurately, thereby improving the efficiency of adjusting the opening of the active air intake grille.

[0077] In a specific embodiment, obtaining a first correspondence between an opening value set according to a drag coefficient and an energy consumption change, and determining a first energy consumption change corresponding to a candidate opening value according to the first correspondence includes:

[0078] Obtaining a first corresponding relationship between a vehicle's travel speed, an opening value, and an energy consumption change set according to a drag coefficient;

[0079] A first energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the first corresponding relationship.

[0080] In this embodiment, the influence of the vehicle's driving speed on the opening of the active air intake grille is further taken into consideration, and the first correspondence between the vehicle's driving speed, opening value and energy consumption change is set in advance according to the drag coefficient, that is, the first correspondence between the driving speed, opening value and the energy consumption change caused by the drag coefficient is set; after obtaining the vehicle's current driving speed and candidate opening values, the first energy consumption change corresponding to the drag coefficient is determined according to the current driving speed, candidate opening values ​​and the pre-set first correspondence.

[0081] More specifically, a first correspondence between driving speed, opening value, and the energy consumption change caused by the drag coefficient can be represented using a correspondence chart or a functional relationship, which is not limited in this embodiment. If a correspondence chart is used to represent the first correspondence between driving speed, opening value, and energy consumption change, then after obtaining the vehicle's current driving speed and candidate opening values, the energy consumption change corresponding to the current driving speed and candidate opening values ​​is searched based on the correspondence chart to determine the first energy consumption change.

[0082] Table 1 is a first correspondence table of vehicle speed, opening value, and energy consumption change according to a drag coefficient provided in an embodiment of the present application;

[0083]

[0084]

[0085] As shown in Table 1, if the baseline opening value of the active air intake grille is determined to be 60° based on the current water temperature, the corresponding candidate opening value is determined to be 80° based on the preset adjustment method of increasing the opening and the preset adjustment value of 20°. If the vehicle's current speed is 50 km / h, the first energy consumption change (energy consumption increase) corresponding to the drag coefficient is determined to be 0.008 (L / 100 km). That is, at the current vehicle speed of 50 km / h, if the opening of the active air intake grille is further increased by 20°, the vehicle's power system will increase energy consumption by 0.008 (L / 100 km). If the vehicle's current speed is 110 km / h, the first energy consumption change (energy consumption increase) corresponding to the drag coefficient is determined to be 0.075 (L / 100 km). That is, at the current vehicle speed of 110 km / h, if the opening of the active air intake grille is further increased by 20°, the power system will increase energy consumption by 0.075 (L / 100 km).

[0086] According to the method of this embodiment, the first energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value can be determined conveniently and accurately, thereby improving the efficiency of adjusting the opening of the active air intake grille.

[0087] Based on the above embodiment, this embodiment further illustrates and optimizes the technical solution. Specifically, in this embodiment, determining a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance based on the candidate opening value includes:

[0088] A second corresponding relationship between the opening value set according to the cooling performance and the energy consumption change is obtained, and a second energy consumption change corresponding to the candidate opening value is determined according to the second corresponding relationship.

[0089] It should be noted that a second correspondence between the opening value and the energy consumption change can be set in advance according to the cooling performance, that is, a second correspondence between the opening value and the energy consumption change caused by the cooling performance can be set; after the candidate opening value is determined, the second energy consumption change corresponding to the cooling performance is determined according to the candidate opening value and the pre-set second correspondence.

[0090] More specifically, the second correspondence between the opening value and the energy consumption change caused by cooling performance can be represented using a correspondence chart or a functional relationship, which is not limited in this embodiment. If the second correspondence between the opening value and the energy consumption change is represented using a correspondence chart, after obtaining a candidate opening value, the energy consumption change corresponding to the candidate opening value is searched for based on the correspondence chart to determine the second energy consumption change.

[0091] According to the method of this embodiment, the second energy consumption change corresponding to the candidate opening value can be determined quickly and accurately, thereby improving the efficiency of adjusting the opening of the active air intake grille.

[0092] In a specific embodiment, obtaining a second correspondence between an opening value set according to cooling performance and an energy consumption change, and determining a second energy consumption change corresponding to a candidate opening value according to the second correspondence includes:

[0093] Obtaining a second correspondence between a vehicle's running speed, an opening value, and an energy consumption change set according to cooling performance;

[0094] A second energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the second corresponding relationship.

[0095] In this embodiment, the influence of the vehicle's driving speed on the opening of the active air intake grille is further taken into consideration, and a first correspondence between the vehicle's driving speed, opening value and energy consumption change is set in advance according to the cooling performance, that is, a first correspondence between the driving speed, opening value and energy consumption change caused by the cooling performance is set; after obtaining the vehicle's current driving speed and candidate opening value, the second energy consumption change corresponding to the cooling performance is determined according to the current driving speed, candidate opening value and the pre-set second correspondence.

[0096] More specifically, a correspondence chart or functional expression can be used to represent the second correspondence between driving speed, opening value, and the energy consumption change due to cooling performance, although this embodiment is not limited thereto. If a correspondence chart is used to represent the first correspondence between driving speed, opening value, and energy consumption change, then after obtaining the vehicle's current driving speed and candidate opening values, the energy consumption change corresponding to the current driving speed and candidate opening values ​​is searched based on the correspondence chart to determine the second energy consumption change.

[0097] According to the method of this embodiment, the second energy consumption change corresponding to the candidate opening value can be determined quickly and accurately, thereby improving the efficiency of adjusting the opening of the active air intake grille.

[0098] In a specific embodiment, obtaining a second correspondence between an opening value set according to cooling performance and an energy consumption change, and determining a second energy consumption change corresponding to a candidate opening value according to the second correspondence includes:

[0099] Obtaining a second corresponding relationship between the ambient temperature, the vehicle's speed, the opening value, and the energy consumption change according to the cooling performance setting;

[0100] A second energy consumption change corresponding to the current ambient temperature, the current driving speed of the vehicle, and the candidate opening value is determined according to the second corresponding relationship.

[0101] In this embodiment, further consideration is given to the influence of the ambient temperature of the vehicle on the opening of the active air intake grille, and a second correspondence between the ambient temperature, the vehicle's driving speed, the opening value and the energy consumption change is set in advance according to the cold cooling performance, that is, a second correspondence between the ambient temperature, the vehicle's driving speed, the opening value and the energy consumption change caused by the cooling performance is set; after obtaining the current ambient temperature, the current vehicle's driving speed and the candidate opening values, the second energy consumption change corresponding to the cooling performance is determined according to the current ambient temperature, the current vehicle's driving speed, the candidate opening values ​​and the second correspondence.

[0102] More specifically, a correspondence chart or functional expression can be used to represent the second correspondence between ambient temperature, driving speed, opening value, and the energy consumption change caused by cooling performance, although this embodiment is not limited thereto. If a correspondence chart is used to represent the second correspondence between ambient temperature, driving speed, opening value, and energy consumption change, then after obtaining the current ambient temperature, the current driving speed of the vehicle, and the candidate opening values, the energy consumption change corresponding to the current ambient temperature, current driving speed, and candidate opening values ​​is searched based on the correspondence chart to determine the second energy consumption change.

[0103] Table 2 is a second correspondence table according to the ambient temperature, vehicle speed, opening value and energy consumption change provided in an embodiment of the present application;

[0104]

[0105]

[0106] As shown in Table 2, if the baseline opening value of the active air intake grille is determined to be 60° based on the current water temperature, the corresponding candidate opening value is determined to be 80° based on the preset adjustment method of increasing the opening and the preset adjustment value of 20°. When the current ambient temperature is 30°C and the vehicle's current speed is 50 km / h, the second energy consumption change (energy consumption reduction) corresponding to the cooling performance is determined to be 0.04 (L / 100 km). That is, at the current vehicle speed of 50 km / h, if the opening of the active air intake grille is further increased by 20°, the cooling system energy consumption will be reduced by 0.04 (L / 100 km). If the current vehicle speed is 110 km / h, the second energy consumption change (energy consumption reduction) corresponding to the cooling performance is determined to be 0.06 (L / 100 km). That is, at the current vehicle speed of 110 km / h, if the opening of the active air intake grille is further increased by 20°, the cooling system energy consumption will be reduced by 0.06 (L / 100 km).

[0107] According to the method of this embodiment, the second energy consumption change corresponding to the current ambient temperature, the current driving speed of the vehicle and the candidate opening value can be determined conveniently and accurately, thereby improving the efficiency of adjusting the opening of the active air intake grille.

[0108] Based on the above embodiment, this embodiment further illustrates and optimizes the technical solution. Specifically, in this embodiment, the reference opening value of the active air intake grille is determined according to the current operating state of the vehicle, including:

[0109] Obtaining current operating states corresponding to multiple influencing factors of the active air intake grille of the vehicle;

[0110] Determining candidate reference opening values ​​corresponding to the active air intake grille according to each current operating state;

[0111] The maximum value of the candidate reference opening values ​​is determined as the reference opening value.

[0112] In this embodiment, multiple factors influencing the vehicle's active air intake grille are determined, such as coolant temperature, engine temperature, oil temperature, vehicle speed, accelerator pedal position, water pump pressure, air conditioning status, and fan status. The current operating state corresponding to each influencing factor is then determined. Furthermore, a pre-set correspondence between the operating state and the opening value of each influencing factor is obtained to determine a candidate reference opening value corresponding to the current operating state. Table 3 shows the correspondence between coolant temperature and opening value.

[0113]

[0114]

[0115] After a plurality of candidate reference opening values ​​are determined, the corresponding relationships among the candidate reference opening values ​​are compared to determine the maximum value of the candidate reference opening values, and the maximum value of the candidate reference opening values ​​is determined as the reference opening value.

[0116] According to the method of this embodiment, a reference opening value of the active air intake grille is determined, and the reference opening value can ensure the heat dissipation demand of the vehicle and ensure the driving stability of the vehicle.

[0117] Based on the above embodiment, this embodiment further illustrates and optimizes the technical solution. Specifically, in this embodiment, a method for adjusting the opening of an active air intake grille further includes:

[0118] After the vehicle is started, check whether the active air intake grille self-test is successful;

[0119] If the self-test is successful, the process proceeds to the step of determining a reference opening value of the active air intake grille according to the current operating state of the vehicle;

[0120] If the self-test fails, the maximum opening of the active air intake grille is determined, and the active air intake grille is controlled to remain open according to the maximum opening.

[0121] Among them, self-inspection refers to the operation of checking whether there is any fault in the active air intake grille and whether it can operate normally; a successful self-inspection means that there is no fault in the active air intake grille and it can operate normally; a failed self-inspection means that there is a fault in the active air intake grille and it cannot operate normally.

[0122] In this embodiment, when the vehicle is detected to be started, the active air intake grille is first controlled to perform a self-check and determine whether the self-check of the active air intake grille is successful. If the self-check is successful, the opening of the active air intake grille is adjusted, and the process proceeds to determine the reference opening value of the active air intake grille based on the current operating state of the vehicle. If the self-check fails, the active air intake grille is fault-handled based on the fault handling model of the active air intake grille, and the maximum opening of the active air intake grille is determined. The active air intake grille is then controlled to remain open at the maximum opening. For example, if the maximum opening of the active air intake grille is determined to be 60°, the control of the active air intake grille to open to 60° is stopped, and the active air intake grille is controlled to remain open at 60°. In this embodiment, corresponding operations are performed according to the self-check results of the active air intake grille, which can further ensure the effectiveness of the opening adjustment of the active air intake grille.

[0123] In order to enable people in this technical field to better understand the technical solutions in this application, the technical solutions in the embodiments of this application are described in detail below in combination with actual application scenarios. Figure 2 The flowchart of another method for adjusting the opening of an active air intake grille provided in an embodiment of the present application and Tables 1 and 2 are shown. In an embodiment of the present application, the specific steps of the method for adjusting the opening of an active air intake grille are as follows:

[0124] Step 1: After the vehicle is started, determine whether the active air intake grille self-test is successful; if the self-test fails, proceed to step 2; if the self-test is successful, proceed to step 3;

[0125] Step 2: Determine the maximum opening of the active air intake grille, and control the active air intake grille to remain open according to the maximum opening;

[0126] Step 3: Obtaining current operating states corresponding to multiple influencing factors of the active air intake grille of the vehicle;

[0127] Step 4: Determine candidate reference opening values ​​corresponding to the active air intake grille according to each current operating state;

[0128] Step 5: Determine the maximum value of each candidate reference opening value as the reference opening value;

[0129] Step 6: Obtain a first corresponding relationship between the vehicle's driving speed, the opening value, and the energy consumption change set according to the drag coefficient;

[0130] Step 7: Determine a first energy consumption change (energy consumption increase) corresponding to the current speed of the vehicle and the candidate opening value according to the first corresponding relationship;

[0131] Step 8: Obtain a second corresponding relationship between the ambient temperature, the vehicle's speed, the opening value, and the energy consumption change according to the cooling performance setting;

[0132] Step 9: Determine a second energy consumption change (energy consumption reduction) corresponding to the current ambient temperature, the current driving speed of the vehicle, and the candidate opening value according to the second corresponding relationship;

[0133] Step 10: Determine whether the first energy consumption change (energy consumption increase) is greater than or equal to the second energy consumption change (energy consumption decrease);

[0134] Step 11: If the first energy consumption change (energy consumption increase) is greater than or equal to the second energy consumption change (energy consumption decrease), it indicates that if the active air intake grille is adjusted to the preset adjustment value in the same preset adjustment manner, the vehicle's energy consumption increase will be greater than or equal to the energy consumption decrease, that is, the vehicle's overall energy consumption will further increase or remain unchanged. Therefore, the active air intake grille is controlled to maintain its current opening value, and the process returns to step 3.

[0135] Step 12: If the first energy consumption change (energy consumption increase) is less than the second energy consumption change (energy consumption decrease), it means that when the active air intake grille is adjusted to the preset adjustment value according to the same preset adjustment method, the vehicle's energy consumption increase will be less than the energy consumption decrease, that is, the vehicle's overall energy consumption will be reduced. Therefore, the active air intake grille is adjusted according to the candidate opening value, and return to step 3.

[0136] An embodiment of the present application provides a method for adjusting the opening of an active air intake grille. After determining a baseline opening value of the active air intake grille according to the current operating state of the vehicle, a preset adjustment method and a preset adjustment value of the active air intake grille are determined, and a candidate opening value is determined according to the baseline opening value, the preset adjustment method and the preset adjustment value; a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance are determined according to the candidate opening value; since the effects of adjusting the opening of the active air intake grille on the drag coefficient and the cooling performance are opposite, one of the first energy consumption change and the second energy consumption change is an energy consumption increase and the other is an energy consumption decrease. This method predicts the corresponding energy consumption increase and energy consumption decrease of the vehicle after adjusting the opening of the active air intake grille according to the candidate opening value, and then determines whether to adjust the active air intake grille based on the energy consumption change of the entire vehicle. This can ensure that each adjustment of the opening of the active air intake grille can reduce the overall energy consumption of the vehicle, thereby ensuring the stability of the vehicle operation.

[0137] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0138] Figure 3 The figure shows a schematic diagram of the structure of an active air intake grille opening adjustment device provided in an embodiment of the present application. Figure 3 As shown, the opening adjustment device of the active air intake grille of this embodiment includes a first determination module 310, a second determination module 320, a third determination module 330 and an adjustment module 340; wherein,

[0139] A first determining module 310 is configured to determine a reference opening value of the active air intake grille according to a current operating state of the vehicle;

[0140] A second determining module 320 is configured to determine a preset adjustment method and a preset adjustment value of the active air intake grille, and determine a candidate opening value based on the reference opening value, the preset adjustment method, and the preset adjustment value;

[0141] a third determining module 330 for determining a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance according to the candidate opening value;

[0142] The adjustment module 340 is configured to determine whether to adjust the active air intake grille according to the candidate opening value based on the first energy consumption change amount and the second energy consumption change amount.

[0143] An active air intake grille opening adjustment device provided in an embodiment of the present application has the same beneficial effects as the above-mentioned active air intake grille opening adjustment method.

[0144] In one of the embodiments, the third determining module 330 comprises:

[0145] The first energy consumption determining submodule is configured to acquire a first correspondence relationship between the opening value set according to the wind resistance coefficient and the energy consumption variation, and determine the first energy consumption variation corresponding to the candidate opening value according to the first correspondence relationship.

[0146] In one of the embodiments, the first energy consumption variation determining submodule comprises:

[0147] The first acquiring unit is configured to acquire a first correspondence relationship between the driving speed of the vehicle, the opening value and the energy consumption variation set according to the wind resistance coefficient;

[0148] The first energy consumption variation determining unit is configured to determine the first energy consumption variation corresponding to the current driving speed of the vehicle and the candidate opening value according to the first correspondence relationship.

[0149] In one of the embodiments, the third determining module 330 comprises:

[0150] The second energy consumption determining submodule is configured to acquire a second correspondence relationship between the opening value set according to the cooling performance and the energy consumption variation, and determine the second energy consumption variation corresponding to the candidate opening value according to the second correspondence relationship.

[0151] In one of the embodiments, the second energy consumption determining submodule comprises:

[0152] The second acquiring unit is configured to acquire a second correspondence relationship between the driving speed of the vehicle, the opening value and the energy consumption variation set according to the cooling performance;

[0153] The second energy consumption variation determining unit is configured to determine the second energy consumption variation corresponding to the current driving speed of the vehicle and the candidate opening value according to the second correspondence relationship.

[0154] In one of the embodiments, the second energy consumption determining submodule comprises:

[0155] The third acquiring unit is configured to acquire a second correspondence relationship between the ambient temperature, the driving speed of the vehicle, the opening value and the energy consumption variation set according to the cooling performance;

[0156] The third energy consumption variation determining unit is configured to determine the second energy consumption variation corresponding to the current ambient temperature, the current driving speed of the vehicle and the candidate opening value according to the second correspondence relationship.

[0157] In one of the embodiments, the first determining module 310 comprises:

[0158] The state acquiring submodule is configured to acquire the current operating state corresponding to each of the plurality of influencing factors of the active air intake grille of the vehicle;

[0159] a candidate data determination submodule, configured to determine candidate reference opening values ​​corresponding to the active air intake grille according to each current operating state;

[0160] The reference opening value determination submodule is used to determine the maximum value of each candidate reference opening value as the reference opening value.

[0161] In one embodiment, an active air intake grille opening adjustment device further includes:

[0162] A self-check module is used to determine whether the active air intake grille has successfully completed a self-check after the vehicle is started; if the self-check is successful, the first determination module is called; if the self-check fails, the execution module is called;

[0163] The execution module is used to determine the maximum opening of the active air intake grille and control the active air intake grille to remain open according to the maximum opening.

[0164] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of this application. Their specific functions and technical effects can be found in the method embodiment section and will not be repeated here.

[0165] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0166] Figure 4 This is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Figure 4 As shown, the terminal device 400 of this embodiment includes a memory 401, a processor 402, and a computer program 403 stored in the memory 401 and executable on the processor 402; when the processor 402 executes the computer program 403, the steps in the above-mentioned method embodiments are implemented; or when the processor 402 executes the computer program 403, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0167] Exemplarily, the computer program 403 may be divided into one or more modules / units, one or more of which are stored in the memory 401 and executed by the processor 402 to implement the method of the embodiment of the present application. One or more modules / units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 403 in the terminal device 400. For example, the computer program 403 may be divided into a first determination module, a second determination module, a third determination module, and an adjustment module, and the specific functions of each module are as follows:

[0168] A first determining module, configured to determine a reference opening value of the active air intake grille according to a current operating state of the vehicle;

[0169] a second determining module, configured to determine a preset adjustment method and a preset adjustment value of the active air intake grille, and determine a candidate opening value according to the reference opening value, the preset adjustment method and the preset adjustment value;

[0170] a third determining module, configured to determine, according to the candidate opening value, a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance;

[0171] The adjustment module is used to determine whether to adjust the active air intake grille according to the candidate opening value based on the first energy consumption change amount and the second energy consumption change amount.

[0172] In application, the terminal device 400 can be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device 400 can include but is not limited to a memory 401 and a processor 402. Those skilled in the art will understand that Figure 4 It is only an example of a terminal device and does not constitute a limitation of the terminal device. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include input and output devices, network access devices, buses, etc.; among them, the input and output devices may include cameras, audio acquisition / playback devices, display screens, etc.; the network access device may include a communication module for wireless communication with external devices.

[0173] In applications, the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0174] In applications, memory can be an internal storage unit of a terminal device, such as a hard drive or memory; it can also be an external storage device, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, or a flash memory card. It can also include both internal and external storage units. Memory is used to store operating systems, applications, boot loaders, data, and other programs, such as computer program code. Memory can also be used to temporarily store data that has been output or is about to be output.

[0175] An embodiment of the present application also provides a vehicle, including a vehicle body and a controller, which executes the steps in the above-mentioned method embodiments.

[0176] The vehicle may be any type of vehicle, such as a fuel vehicle, a battery electric vehicle (BEV), or a hybrid vehicle. In this embodiment, the vehicle includes a vehicle body and a controller, and the controller is capable of implementing the steps of the active grille operation control method in the above embodiment.

[0177] A vehicle provided in an embodiment of the present application has the same beneficial effects as the above-mentioned method for adjusting the opening of an active air intake grille.

[0178] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0179] A computer-readable storage medium provided in an embodiment of the present application has the same beneficial effects as the above-mentioned method for adjusting the opening of an active air intake grille.

[0180] The present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, it can implement the steps of the above-mentioned various method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device capable of carrying the computer program code to a terminal device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electric carrier signal, a telecommunication signal and a software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk.

[0181] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0182] Those skilled in the art will appreciate that the devices and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0183] In the embodiments provided herein, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interface, or the devices may be indirectly coupled or communicated in some manner, whether electrical, mechanical, or other.

[0184] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A method for adjusting the opening of an active air intake grille, characterized in that: The method comprises: determining a reference opening value of the active air intake grille according to a current operating state of the vehicle; Determining a preset adjustment mode and a preset adjustment value of the active air intake grille, and determining a candidate opening value according to the reference opening value, the preset adjustment mode and the preset adjustment value; determining a first energy consumption change corresponding to a drag coefficient and a second energy consumption change corresponding to a cooling performance according to the candidate opening value; Determine whether to adjust the active air intake grille according to the candidate opening value based on the first energy consumption change and the second energy consumption change; including: determining the energy consumption change trend of the entire vehicle based on the first energy consumption change and the second energy consumption change; if the energy consumption change trend of the entire vehicle is increasing, maintain the baseline opening value; if the energy consumption change trend of the entire vehicle is decreasing, adjust the active air intake grille according to the candidate opening value.

2. The method according to claim 1, characterized in that The determining, according to the candidate opening value, a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance includes: A first correspondence between an opening value set according to a drag coefficient and an energy consumption change is obtained, and a first energy consumption change corresponding to the candidate opening value is determined according to the first correspondence.

3. The method according to claim 2, characterized in that The acquiring a first correspondence between an opening value set according to a drag coefficient and an energy consumption change, and determining a first energy consumption change corresponding to the candidate opening value according to the first correspondence, includes: Obtaining a first correspondence between a driving speed, an opening value, and an energy consumption change of the vehicle set according to a drag coefficient; A first energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the first corresponding relationship.

4. The method according to claim 1, wherein The determining, according to the candidate opening value, a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance includes: A second correspondence between an opening value set according to cooling performance and an energy consumption change is acquired, and a second energy consumption change corresponding to the candidate opening value is determined according to the second correspondence.

5. The method according to claim 4, characterized in that The acquiring a second correspondence between the opening value set according to the cooling performance and the energy consumption change, and determining a second energy consumption change corresponding to the candidate opening value according to the second correspondence, includes: Obtaining a second correspondence between the vehicle's running speed, the opening value, and the energy consumption change set according to cooling performance; A second energy consumption change corresponding to the current driving speed of the vehicle and the candidate opening value is determined according to the second corresponding relationship.

6. The method according to claim 4, characterized in that The acquiring a second correspondence between the opening value set according to the cooling performance and the energy consumption change, and determining a second energy consumption change corresponding to the candidate opening value according to the second correspondence, includes: Obtaining a second correspondence between the ambient temperature set according to the cooling performance, the driving speed of the vehicle, the opening value, and the energy consumption change; A second energy consumption change corresponding to the current ambient temperature, the current driving speed of the vehicle, and the candidate opening value is determined according to the second corresponding relationship.

7. The method according to claim 1, characterized in that Determining the reference opening value of the active air intake grille according to the current operating state of the vehicle includes: Obtaining current operating states corresponding to multiple influencing factors of the active air intake grille of the vehicle; determining candidate reference opening values ​​corresponding to the active air intake grilles according to the respective current operating states; The maximum value of the candidate reference opening values ​​is determined as the reference opening value.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: After the vehicle is started, determining whether the active air intake grille has successfully completed a self-test; If the self-test is successful, the process proceeds to the step of determining a reference opening value of the active air intake grille according to the current operating state of the vehicle; If the self-check fails, the maximum opening of the active air intake grille is determined, and the active air intake grille is controlled to remain in an open state according to the maximum opening.

9. An active air intake grille opening adjustment device, characterized in that: The device comprises: A first determining module, configured to determine a reference opening value of the active air intake grille according to a current operating state of the vehicle; a second determining module, configured to determine a preset adjustment mode and a preset adjustment value of the active air intake grille, and determine a candidate opening value according to the reference opening value, the preset adjustment mode and the preset adjustment value; a third determining module, configured to determine, according to the candidate opening value, a first energy consumption change corresponding to the drag coefficient and a second energy consumption change corresponding to the cooling performance; An adjustment module is used to determine whether to adjust the active air intake grille according to the candidate opening value based on the first energy consumption change amount and the second energy consumption change amount; including: determining the energy consumption change trend of the entire vehicle based on the first energy consumption change amount and the second energy consumption change amount; if the energy consumption change trend of the entire vehicle is increasing, maintaining the baseline opening value; if the energy consumption change trend of the entire vehicle is decreasing, adjusting the active air intake grille according to the candidate opening value.

10. A vehicle comprising a vehicle body, characterized in that: The invention further comprises a controller, wherein the controller executes the steps of the method according to any one of claims 1 to 8.

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