Active grille shutter control method and apparatus, electronic device, and vehicle

Abstract

The application provides an active grille shutter control method and device, electronic equipment and vehicle. The method comprises the following steps: monitoring the ambient temperature outside the vehicle and the windshield wiper state; when the ambient temperature is less than or equal to a preset temperature value and the windshield wiper is in an open state, monitoring the vehicle state and the working frequency of the windshield wiper; and according to the vehicle state and the working frequency of the windshield wiper, controlling the active grille shutter AGS and the fan to execute corresponding control strategies. In the scheme, if it is monitored that the ambient temperature is less than or equal to a preset temperature value and the windshield wiper is in an open state, according to the vehicle state and the working frequency of the windshield wiper, the active grille shutter AGS and the fan are controlled to execute corresponding actions, so as to reduce the AGS failure risk and reduce the influence of the AGS state on the front end module.

Description

Technical Field

[0001] This invention relates to the field of active grille shutter technology for vehicles, and more particularly to an active grille shutter control method, device, electronic device, and vehicle. Background Technology

[0002] With the widespread adoption of Active Grille Shutter (AGS), vehicles are generally equipped with it. In winter, vehicles equipped with AGS can warm up faster by utilizing the AGS during startup, reducing heat loss. Engine, motor, and other components heat up quickly, facilitating engine warm-up and heat recovery for heating other components or the passenger compartment. Furthermore, at high speeds, closing the AGS can result in a lower drag coefficient, improving vehicle stability and fuel economy (and reducing electricity consumption in electric vehicles). However, as a movable / adjustable component located at the front of the vehicle, the AGS is easily affected by rain and snow in low temperatures. Ice and snow can cover the fan blades and transmission components, causing them to freeze and lose their adjustment function. When the vehicle requires cooling or heat pump absorption, the front-end module's reduced heat exchange capacity due to the AGS's condition can even lead to over-temperature alarms.

[0003] Therefore, it can be seen that the existing active air intake grille is prone to freezing in winter, causing the AGS to lose its adjustment function, and the front-end module is easily affected by the AGS status, resulting in reduced heat exchange capacity and even over-temperature alarms. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide an active air intake grille control method, device, electronic device, and vehicle to reduce the risk of AGS failure and reduce the impact of AGS status on the front-end module.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] The first aspect of this invention discloses an active grille shutter control method, the method comprising:

[0007] Monitor the ambient temperature outside the vehicle and the status of the windshield wipers;

[0008] When the ambient temperature is less than or equal to a preset temperature value and the windshield wiper is on, monitor the overall vehicle status and the operating frequency of the windshield wiper.

[0009] Based on the overall vehicle status and the operating frequency of the windshield wipers, the active air intake grille (AGS) and fan are controlled to execute corresponding control strategies.

[0010] Optionally, according to the method of claim 1, controlling the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes:

[0011] When the vehicle is idling and the windshield wipers are turned on, or when the windshield wipers operate at a frequency less than or equal to a first preset frequency, the active grille shutter (AGS) is controlled to execute a first-level control strategy. The first-level control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then switching it back from the fully open state to the fully closed state, executing the first-level control strategy once every first preset time interval.

[0012] Optionally, the step of controlling the active grille shutter (AGS) and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes:

[0013] When the vehicle is in motion, and the operating frequency of the windshield wiper is greater than the first preset frequency and less than or equal to the second preset frequency, the active air intake grille (AGS) is controlled to execute a secondary control strategy. The secondary control strategy involves controlling the active air intake grille to switch from the fully closed state to the fully open state, and then switching from the fully open state back to the fully closed state, executing the secondary control strategy once every second preset time interval.

[0014] Optionally, the step of controlling the active grille shutter (AGS) and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes:

[0015] When the vehicle is in the driving state, and the operating frequency of the windshield wiper is greater than the second preset frequency and less than or equal to the third preset frequency, the active air intake grille (AGS) is controlled to execute a three-level control strategy. The three-level control strategy involves controlling the active air intake grille to switch from the fully closed state to the fully open state, and then switching from the fully open state to the fully closed state, executing the three-level control strategy once every third preset time interval.

[0016] Optionally, the step of controlling the active grille shutter (AGS) and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes:

[0017] When the vehicle is in the driving state, and the operating frequency of the windshield wiper is greater than the third preset frequency and less than or equal to the fourth preset frequency, or when the windshield wiper is in the first gear, the active air intake grille (AGS) is controlled to execute a four-level control strategy, and the fan is controlled to rotate at full speed and in reverse. The four-level control strategy involves controlling the active air intake grille to switch from the fully closed state to the fully open state, and then repeatedly switching from the fully open state to a preset grille opening, and then switching from the preset grille opening back to the fully open state. The execution time is the fourth preset time, and the four-level control strategy is executed once every third preset time.

[0018] Optional, also includes:

[0019] After controlling the active air intake grille AGS to execute the fourth-level control strategy, or during the execution of the fourth-level control strategy, controlling the active air intake grille AGS to switch to any one of the first-level to third-level control strategies, or detecting that the windshield wipers are in a closed state, controlling the active air intake grille AGS to close completely and controlling the fan to stop running.

[0020] Optionally, the step of controlling the active grille shutter (AGS) and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes:

[0021] When the vehicle is in the driving state, if the operating frequency of the windshield wiper is greater than the fourth preset frequency, or if the windshield wiper is in the second gear, the active air intake grille AGS is controlled to repeatedly execute the four-level control strategy, and the fan is controlled to rotate at full speed and in the opposite direction until the active air intake grille AGS is controlled to switch to any of the four-level control strategies, or until the windshield wiper is detected to be in the off state.

[0022] After the fifth preset time, the active air intake grille (AGS) is completely closed.

[0023] A second aspect of this invention discloses an active grille control device, the device comprising:

[0024] The first monitoring module is used to monitor the ambient temperature outside the vehicle and the status of the windshield wipers.

[0025] The second monitoring module is used to monitor the overall vehicle status and the operating frequency of the windshield wipers when the ambient temperature is less than or equal to a preset temperature value and the windshield wipers are in the on state.

[0026] The control module is used to control the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers.

[0027] A third aspect of the present invention discloses an electronic device for running a program, wherein the program executes the active grille control method as described in any one of the first aspects of the present invention.

[0028] A fourth aspect of the present invention discloses a vehicle including the active grille control device described in the second aspect of the present invention, and the electronic device described in the third aspect of the present invention.

[0029] Based on the above embodiments of the present invention, an active air intake grille control method, device, and vehicle are provided. The method includes: monitoring the ambient temperature outside the vehicle and the status of the windshield wipers; when the ambient temperature is less than or equal to a preset temperature value and the windshield wipers are on, monitoring the overall vehicle status and the operating frequency of the windshield wipers; and controlling the active air intake grille (AGS) and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers. In this solution, if the ambient temperature is detected to be less than or equal to a preset temperature value and the windshield wipers are on, the active air intake grille (AGS) and fan are controlled to perform corresponding actions based on the overall vehicle status and the operating frequency of the windshield wipers, thereby reducing the risk of AGS failure and minimizing the impact of the AGS status on the front-end module. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A flowchart illustrating an active air intake grille control method provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic flowchart illustrating a method for controlling the active air intake grille (AGS) and fan to execute corresponding control strategies, as provided in an embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of an active air intake grille control device provided in an embodiment of the present invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0037] As can be seen from the background technology, existing active air intake grilles freeze in winter, making it easy for the AGS to lose its adjustment function. Furthermore, the front-end module is easily affected by the AGS status, resulting in reduced heat exchange capacity and even over-temperature alarms.

[0038] Therefore, embodiments of the present invention provide an active air intake grille control method, device, and vehicle. In this solution, if the ambient temperature is detected to be less than or equal to a preset temperature value and the windshield wipers are in the on state, the active air intake grille (AGS) and fan are controlled to perform corresponding actions based on the overall vehicle status and the operating frequency of the windshield wipers, so as to reduce the risk of AGS failure and reduce the impact of AGS status on the front-end module.

[0039] like Figure 1 The diagram shown is a flowchart illustrating an active air intake grille control method provided in an embodiment of the present invention.

[0040] It should be noted that this active grille control method is the same as the active grille anti-icing or anti-snow accumulation method.

[0041] The active grille control method mainly includes the following steps:

[0042] Step S101: Monitor the ambient temperature outside the vehicle and the status of the windshield wipers.

[0043] In step S101, the windshield wipers are in the off state by default.

[0044] In the specific implementation step S101, the outdoor temperature sensor of the air conditioning system is used to monitor the ambient temperature outside the vehicle and the status of the windshield wipers. Preferably, in some embodiments, the driving environment is determined by referring to the wiper gear and speed information.

[0045] Step S102: When the ambient temperature is less than or equal to the preset temperature value and the windshield wipers are on, proceed to step S103; otherwise, proceed to step S101.

[0046] In step S102, the specific value of the preset temperature can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0047] In some embodiments, the first preset frequency can be 0 degrees Celsius.

[0048] It should be noted that "windshield wipers on" means that the wipers are rotating, regardless of the wiper speed setting, duration of operation, or frequency. In other words, as long as the windshield wipers are rotating, it means that the windshield wipers are currently on.

[0049] In the specific implementation of step S102, the monitored ambient temperature is compared with the preset temperature value. If the monitored ambient temperature is less than or equal to the preset temperature value and the windshield wipers are turned on, step S103 is executed.

[0050] If the monitored ambient temperature is greater than the preset temperature value, the triggering conditions for the subsequent control strategy cannot be met regardless of whether the windshield wipers are turned on or off, and the process returns to step S101.

[0051] It should be noted that the control strategy is the same as the anti-icing or anti-snow accumulation strategy.

[0052] Step S103: Monitor the overall vehicle status and the operating frequency of the windshield wipers.

[0053] In step S103, the overall vehicle status includes, but is not limited to, idling status, driving status, and parking status.

[0054] Driving status means that the vehicle is in motion.

[0055] The windshield wipers can operate at a frequency of n times per minute, where n is a positive integer.

[0056] In the specific implementation of step S103, the monitoring device is used to monitor the overall vehicle status and the operating frequency of the windshield wipers.

[0057] Step S104: Based on the overall vehicle status and the operating frequency of the windshield wipers, control the active grille shutter (AGS) and fan to execute corresponding control strategies.

[0058] In the specific implementation of step S104, if the overall vehicle status and the operating frequency of the windshield wipers are detected to meet the triggering conditions of the control strategy, the active air intake grille (AGS) and the fan are controlled to execute the corresponding control strategy based on the overall vehicle status and the operating frequency of the windshield wipers.

[0059] Optionally, step S104 involves controlling the active grille shutter and fan to execute corresponding control strategies based on the vehicle's overall status and the windshield wiper's operating frequency, such as... Figure 2 The diagram shown is a flowchart illustrating a method for controlling the active air intake grille (AGS) and fan to execute corresponding control strategies according to an embodiment of the present invention. The method mainly includes the following steps:

[0060] Step S201: When the windshield wipers are turned on while the vehicle is idling, or when the windshield wipers operate at a frequency less than or equal to the first preset frequency, proceed to step S202; otherwise, proceed to step S203.

[0061] In step S201, the specific value of the first preset frequency can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0062] In some embodiments, the first preset frequency may be 2 times / minute.

[0063] In the specific implementation of step S201, the operation performed by the vehicle under idling conditions is monitored. If the windshield wipers are detected to be turned on under idling conditions, or if the operating frequency of the windshield wipers is compared with the first preset frequency, and it is determined that the operating frequency of the windshield wipers is less than or equal to the first preset frequency, it means that the vehicle currently meets the triggering conditions of the first-level control strategy, and it is necessary to control the active air intake grille AGS and the fan to execute the corresponding control strategy, then step S202 is executed.

[0064] If it is detected that the vehicle's windshield wipers are currently on, or if it is determined that the operating frequency of the windshield wipers is greater than the first preset frequency, it indicates that the vehicle may currently meet the triggering conditions of other control strategies. Therefore, it is necessary to re-determine the overall vehicle status and the operating frequency of the windshield wipers, and then execute step S203.

[0065] Step S202: Control the active grille shutter AGS to execute the first-level control strategy.

[0066] In step S202, the primary control strategy is to control the active air intake grille to switch from a fully closed state to a fully open state, and then switch from a fully open state back to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0067] The first-level control strategy is executed once every first preset time interval.

[0068] It should be noted that the specific value of the first preset time can be determined according to the actual situation of the vehicle, and this application does not limit it, all of which are within the protection scope of this application.

[0069] In some embodiments, the first preset time can be 10 minutes.

[0070] In other words, the Level 1 control strategy can be triggered only once every 10 minutes.

[0071] In the specific implementation of step S202, when it is determined that the windshield wipers are turned on when the vehicle is idling, or when the operating frequency of the windshield wipers is less than or equal to the first preset frequency, the active air intake grille AGS is controlled to execute a first-level control strategy. Specifically, the active air intake grille is controlled to switch from a fully closed state to a fully open state, and then from a fully open state to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0072] It should be noted that during the process of controlling the Active Grille Controller (AGS) to execute the Level 1 control strategy, if the Active Grille Controller (AGS) switches to a higher level control strategy, or if the windshield wipers are detected to be in a closed state, the process of the Active Grille Controller (AGS) executing the Level 1 control strategy will not be interrupted.

[0073] Step S203: When the vehicle is in motion, if the operating frequency of the windshield wipers is greater than the first preset frequency and less than or equal to the second preset frequency, proceed to step S204; otherwise, proceed to step S205.

[0074] In step S203, the specific value of the second preset frequency can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0075] In some embodiments, the second preset frequency can be 10 times / minute.

[0076] In the specific implementation of step S203, if it is determined that the operating frequency of the windshield wiper is greater than the first preset frequency, that is, if it is determined that the operating frequency of the windshield wiper does not meet the triggering condition of the first-level control strategy, then the monitored operating frequency of the windshield wiper is compared with the second preset frequency. If it is detected that the vehicle is in motion, and it is determined that the monitored operating frequency of the windshield wiper is greater than the first preset frequency and less than or equal to the second preset frequency, it means that the vehicle currently meets the triggering condition of the second-level control strategy, and it is necessary to control the active air intake grille AGS and the fan to execute the corresponding control strategy, then step S204 is executed.

[0077] If it is determined that the detected operating frequency of the windshield wiper is greater than the second preset frequency, it means that the vehicle may currently meet the triggering conditions of other control strategies. It is necessary to re-determine the overall vehicle status and the operating frequency of the windshield wiper, and then execute step S205.

[0078] Step S204: Control the active air intake grille AGS to execute the secondary control strategy.

[0079] In step S204, the secondary control strategy is to control the active air intake grille to switch from a fully closed state to a fully open state, and then switch from a fully open state back to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0080] The secondary control strategy is executed once every second preset time interval.

[0081] It should be noted that the specific value of the second preset time can be determined according to the actual situation of the vehicle, and this application does not limit it, all of which are within the protection scope of this application.

[0082] In some embodiments, the second preset time can be 5 minutes.

[0083] In other words, the secondary control strategy can be triggered only once every 5 minutes.

[0084] In the specific implementation of step S204, when it is determined that the vehicle is in motion and the working frequency of the windshield wipers is greater than the first preset frequency and less than or equal to the second preset frequency, the active air intake grille AGS is controlled to execute a secondary control strategy. Specifically, the active air intake grille is controlled to switch from a fully closed state to a fully open state, and then from a fully open state to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0085] It should be noted that during the process of controlling the active grille shutter AGS to execute the secondary control strategy, if the active grille shutter AGS switches to a higher level of control strategy, or if the windshield wipers are detected to be in a closed state, the process of the active grille shutter AGS executing the secondary control strategy will not be interrupted.

[0086] Step S205: When the vehicle is in motion, if the operating frequency of the windshield wipers is greater than the second preset frequency and less than or equal to the third preset frequency, proceed to step S206; otherwise, proceed to step S207.

[0087] In step S205, the specific value of the third preset frequency can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0088] In some embodiments, the third preset frequency can be 20 times / minute.

[0089] In the specific implementation of step S205, if it is determined that the operating frequency of the windshield wiper is greater than the second preset frequency, that is, if it is determined that the operating frequency of the windshield wiper does not meet the triggering conditions of the secondary control strategy, then the monitored operating frequency of the windshield wiper is compared with the third preset frequency. If it is detected that the vehicle is in motion, and it is determined that the monitored operating frequency of the windshield wiper is greater than the second preset frequency and less than or equal to the third preset frequency, it means that the vehicle currently meets the triggering conditions of the tertiary control strategy, and it is necessary to control the active air intake grille AGS and the fan to execute the corresponding control strategy, then step S206 is executed.

[0090] If it is determined that the detected operating frequency of the windshield wiper is greater than the third preset frequency, it means that the vehicle may currently meet the triggering conditions of other control strategies. It is necessary to re-determine the overall vehicle status and the operating frequency of the windshield wiper, and then execute step S207.

[0091] Step S206: Control the active grille shutter AGS to execute a three-level control strategy.

[0092] In step S206, the three-level control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then from a fully open state back to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0093] The three-level control strategy is executed once every third preset time interval.

[0094] It should be noted that the specific value of the third preset time can be determined according to the actual situation of the vehicle, and this application does not limit it, all of which are within the protection scope of this application.

[0095] In some embodiments, the third preset time can be 2 minutes.

[0096] In other words, the level 3 control strategy can be triggered only once every 2 minutes.

[0097] In the specific implementation of step S206, when it is determined that the vehicle is in motion and the working frequency of the windshield wipers is greater than the second preset frequency and less than or equal to the third preset frequency, the active air intake grille AGS is controlled to execute a three-level control strategy. Specifically, the active air intake grille is controlled to switch from a fully closed state to a fully open state, and then from a fully open state to a fully closed state. In other words, the AGS is controlled to execute a "fully closed → fully open → fully closed" workflow once.

[0098] It should be noted that during the process of controlling the Active Grille Controller (AGS) to execute the three-level control strategy, if the Active Grille Controller (AGS) switches to a higher level of control strategy, or if the windshield wipers are detected to be in a closed state, the process of the Active Grille Controller (AGS) executing the three-level control strategy will not be interrupted.

[0099] It should also be noted that the fan does not operate during the execution of the first-level, second-level, or third-level control strategy by the aforementioned active grille shutter AGS.

[0100] Step S207: When the vehicle is in motion, if the operating frequency of the windshield wipers is greater than the third preset frequency and less than or equal to the fourth preset frequency, or if the windshield wipers are in the first gear, proceed to step S208; otherwise, proceed to step S209.

[0101] In step S207, the specific value of the fourth preset frequency can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0102] In some embodiments, the first preset time can be 40 times / minute.

[0103] The first gear refers to the L0 gear.

[0104] In the specific implementation of step S207, if it is determined that the operating frequency of the windshield wiper is greater than the third preset frequency, that is, if it is determined that the operating frequency of the windshield wiper does not meet the triggering conditions of the three-level control strategy, then the monitored operating frequency of the windshield wiper is compared with the fourth preset frequency. If the vehicle is detected to be in motion, and it is determined that the monitored operating frequency of the windshield wiper is greater than the third preset frequency and less than or equal to the fourth preset frequency, or if the windshield wiper is detected to be in the first gear, it means that the vehicle currently meets the triggering conditions of the four-level control strategy, and it is necessary to control the active grille shutter AGS and the fan to execute the corresponding control strategy, then step S208 is executed.

[0105] If it is determined that the operating frequency of the windshield wiper is greater than the fourth preset frequency, it means that the vehicle may currently meet the triggering conditions of other control strategies. It is necessary to re-determine the overall vehicle status and the operating frequency of the windshield wiper, and then execute step S209.

[0106] Step S208: Control the active air intake grille AGS to execute a four-level control strategy and control the fan to rotate at full speed and in reverse.

[0107] In step S208, the four-level control strategy is to control the active air intake grille to switch from a fully closed state to a fully open state, and repeat the process of switching from the fully open state to a preset grille opening, and then switching from the preset grille opening back to the fully open state. The execution time is the fourth preset time.

[0108] The specific values ​​of the preset grille opening and the fourth preset time can be determined according to the actual situation of the vehicle. This application does not limit them, and they are all within the protection scope of this application.

[0109] Preferably, the fourth preset time can be 30 seconds.

[0110] When the preset grille opening is 10°, the AGS is controlled to repeatedly execute the action of "fully closed → fully open → 10° → fully open → 10° → fully open → 10°..." for 30 seconds.

[0111] The four-level control strategy is executed once every three preset time intervals.

[0112] It should be noted that the actual time allowed to execute a Level 4 control strategy once differs from the third preset time and is not necessarily the third preset time.

[0113] In some embodiments, the level 4 control policy may be triggered only once every 2 minutes.

[0114] In this embodiment of the invention, in order to realize the blowing function of the fan, the initial method is to reverse the fan.

[0115] In some embodiments, the implementation may also be different, such as adjusting the fan blade mounting angle while keeping the fan direction unchanged.

[0116] The fan speed can be changed according to actual needs and is not limited to full speed rotation.

[0117] In the specific implementation of step S208, when it is determined that the vehicle is in motion, the windshield wiper's operating frequency is greater than the third preset frequency and less than or equal to the fourth preset frequency, or the windshield wiper is in the first gear, the active air intake grille AGS is controlled to execute a four-level control strategy, and the fan is controlled to rotate at full speed and in the opposite direction. Specifically, the active air intake grille is controlled to switch from a fully closed state to a fully open state, and then repeatedly switches from a fully open state to a preset grille opening, and then switches from a preset grille opening to a fully open state, executing for a fourth preset time. During the execution, the fan is controlled to rotate at full speed and in the opposite direction. In other words, the AGS is controlled to repeatedly execute the action of "fully closed → fully open → preset grille opening → fully open → preset grille opening → fully open → preset grille opening..." and execute for a fourth preset time. During the execution, the fan rotates at full speed and in the opposite direction (blowing air outward).

[0118] In some embodiments, the AGS is controlled to repeatedly execute the action of "fully off → fully open → 10° → fully open → 10° → fully open → 10°..." for 30 seconds. During the execution, the fan rotates at full speed and in the opposite direction (blowing air outward).

[0119] It should be noted that, in order to prevent the AGS fan blades from being covered, frozen or blocked by ice or snow, the AGS control function (i.e., anti-icing or anti-snow accumulation function) is achieved solely by the vibration of the fan blades themselves and the blowing of the fan, thereby minimizing the risk of AGS failure.

[0120] It should also be noted that the fan can provide a reverse component to reduce ice and snow cover and accumulation on the front module while the vehicle is in motion.

[0121] Preferably, after performing step S208, the method further includes:

[0122] After the Active Grille Controller (AGS) executes the Level 4 control strategy, or during the execution of the Level 4 control strategy, the Active Grille Controller (AGS) switches to any of the Level 1 to Level 3 control strategies, or if the windshield wipers are detected to be closed, the Active Grille Controller (AGS) is completely closed, and the fan stops running.

[0123] It should be noted that the execution period mentioned above refers to any time within the period during which the Active Grille System (AGS) executes the Level 4 control strategy.

[0124] Step S209: When the vehicle is in motion and the windshield wiper operates at a frequency greater than the fourth preset frequency, or when the windshield wiper is in the second gear, proceed to step S210; otherwise, proceed to step S201.

[0125] In step S209, the second gear refers to the HI gear.

[0126] In the specific implementation of step S209, if it is determined that the operating frequency of the windshield wiper is greater than the fourth preset frequency, that is, if it is determined that the operating frequency of the windshield wiper does not meet the triggering conditions of the fourth-level control strategy, then the monitored operating frequency of the windshield wiper is compared with the fourth preset frequency. If it is detected that the vehicle is in a driving state, and it is determined that the monitored operating frequency of the windshield wiper is greater than the fourth preset frequency, or if it is detected that the windshield wiper is in the second gear, it means that the vehicle currently meets the triggering conditions of the fifth-level control strategy, and it is necessary to control the active air intake grille AGS and the fan to execute the corresponding control strategy, then step S210 is executed.

[0127] If it is determined that the detected operating frequency of the windshield wiper is not greater than the fourth preset frequency, or the windshield wiper is not in the second gear, it indicates that the vehicle may currently meet the triggering conditions of other control strategies. It is necessary to re-determine the overall vehicle status and the operating frequency of the windshield wiper, and then return to step S201.

[0128] Step S210: Control the active air intake grille AGS to repeatedly execute the four-level control strategy, and control the fan to rotate at full speed and in reverse until the active air intake grille AGS switches to any one of the four-level control strategies, or until the windshield wipers are detected to be in the off state.

[0129] In the specific implementation of step S210, when it is determined that the vehicle is in motion, the windshield wiper's operating frequency is greater than the fourth preset frequency, or the windshield wiper is in the second gear, the active air intake grille AGS is controlled to repeatedly execute the above-mentioned four-level control strategy, and the fan is controlled to rotate at full speed and in reverse until the active air intake grille AGS is controlled to switch to any level of control strategy from level one to level four, or until the windshield wiper is detected to be in the off state.

[0130] Step S211: After the fifth preset time, control the active air intake grille (AGS) to close completely.

[0131] In step S211, the specific value of the fifth preset time can be determined according to the actual situation of the vehicle. This application does not limit it, and all of them are within the protection scope of this application.

[0132] In some embodiments, the fifth preset time can be 1 minute.

[0133] In other words, the Active Grille System (AGS) will be fully closed after 1 minute. Or, after a 1-minute delay, the Active Grille System (AGS) will be fully closed.

[0134] It should be noted that if the AGS fan blades get stuck (may be frozen or accumulated) during the execution of the above control strategy, the AGS motor torque can be increased appropriately and the operation can be restarted. Once the control strategy is activated once and has been tried more than 3 times, the control strategy will no longer be triggered until the ambient temperature is above 0°C. The AGS can then activate the Level 1 control strategy once every 10 minutes until the AGS stops running and no longer gets stuck.

[0135] In some embodiments, there is no requirement for the number of times the AGS card lags and attempts to increase torque operation, nor is there a requirement for the time interval between attempts to restart the AGS after the ambient temperature is above 0°C.

[0136] It should be noted that the AGS action mode and specific opening angle at each of the above levels, including fully closed, fully open, 10° and other positions, can be defined differently to consider other needs, as long as the AGS can achieve its own angle change function, the purpose of which is to prevent ice and snow from freezing.

[0137] It should also be noted that the reference range for the operating frequency of the windshield wipers can be recalibrated and changed based on different vehicle models and strategy requirements.

[0138] It should also be noted that the control strategy level range, AGS runtime and time interval can be merged, reduced or extended according to actual needs.

[0139] Based on the above explanation, it can be understood that by monitoring the ambient temperature and the operation of the windshield wipers, snowfall weather is determined, and then the active grille and fan are controlled to perform specific actions to reduce the risk of the AGS freezing in snowfall weather.

[0140] Based on the active air intake grille control method provided by the embodiments of the present invention, if the ambient temperature is detected to be lower than a preset temperature value and the windshield wipers are in the on state, the active air intake grille (AGS) and the fan are controlled to perform corresponding actions according to the overall vehicle status and the working frequency of the windshield wipers, so as to reduce the risk of AGS failure and reduce the impact of AGS status on the front-end module.

[0141] Compared with the above embodiments of the present invention Figure 2 Corresponding to the active grille control method shown, this embodiment of the invention also provides an active grille control device, such as... Figure 3 As shown, the active air intake grille control device includes: a first monitoring module 301, a second monitoring module 302, and a control module 303.

[0142] The first monitoring module 301 is used to monitor the ambient temperature outside the vehicle and the status of the windshield wipers.

[0143] The second monitoring module 302 is used to monitor the overall vehicle status and the operating frequency of the windshield wipers when the ambient temperature is less than or equal to a preset temperature value and the windshield wipers are on.

[0144] The control module 303 is used to control the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers.

[0145] Optionally, based on the above Figure 3 The control module 303 shown is specifically used for:

[0146] When the vehicle is idling and the windshield wipers are turned on, or when the windshield wipers operate at a frequency less than or equal to a first preset frequency, the active grille shutter (AGS) is controlled to execute a first-level control strategy. The first-level control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then back to a fully closed state, executing the first-level control strategy once every first preset time interval.

[0147] Optionally, based on the above Figure 3 The control module 303 shown is further specifically used for:

[0148] When the vehicle is in motion, and the windshield wiper operates at a frequency greater than a first preset frequency but less than or equal to a second preset frequency, the active grille shutter (AGS) is controlled to execute a secondary control strategy. The secondary control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then from a fully open state to a fully closed state, executing the secondary control strategy once every second preset time interval.

[0149] Optionally, based on the above Figure 3 The control module 303 shown is further specifically used for:

[0150] When the vehicle is in motion, and the windshield wiper operates at a frequency greater than the second preset frequency but less than or equal to the third preset frequency, the active grille shutter (AGS) is controlled to execute a three-level control strategy. The three-level control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then from a fully open state to a fully closed state, executing the three-level control strategy once every third preset time interval.

[0151] Optionally, based on the above Figure 3 The control module 303 shown is further specifically used for:

[0152] When the vehicle is in motion, and the windshield wipers operate at a frequency greater than the third preset frequency and less than or equal to the fourth preset frequency, or when the windshield wipers are in the first gear, the Active Grille Controller (AGS) is controlled to execute a four-level control strategy, and the fan is controlled to rotate at full speed and in the opposite direction. The four-level control strategy involves switching the Active Grille Controller from a fully closed state to a fully open state, and then repeatedly switching from the fully open state to a preset grille opening, and then back to the fully open state, for a period of the fourth preset time. This four-level control strategy is executed once every third preset time. After the Active Grille Controller (AGS) executes the four-level control strategy, or during the execution of the four-level control strategy, the Active Grille Controller (AGS) is switched to any one of the first to third level control strategies, or if the windshield wipers are detected to be closed, the Active Grille Controller (AGS) is completely closed, and the fan stops operating.

[0153] Optionally, based on the above Figure 3 The control module 303 shown is further specifically used for:

[0154] When the vehicle is in motion, if the windshield wipers operate at a frequency higher than the fourth preset frequency, or if the windshield wipers are in the second gear, the Active Grille Speculator (AGS) is controlled to repeatedly execute the four-level control strategy and control the fan to rotate at full speed and in reverse until the Active Grille Speculator (AGS) switches to any of the four-level control strategies, or until the windshield wipers are detected to be in the off state; after the fifth preset time, the Active Grille Speculator (AGS) is controlled to close completely.

[0155] It should be noted that the specific principles and execution processes of each module in the active air intake grille control device disclosed in the above embodiments of the present invention are the same as those of the active air intake grille control method of the present invention. Please refer to the corresponding parts of the active air intake grille control method disclosed in the above embodiments of the present invention, and they will not be repeated here.

[0156] Based on the active air intake grille control device provided in this embodiment of the invention, if the ambient temperature is detected to be lower than a preset temperature value and the windshield wipers are in the on state, the active air intake grille (AGS) and the fan are controlled to perform corresponding actions according to the overall vehicle status and the operating frequency of the windshield wipers, so as to reduce the risk of AGS failure and reduce the impact of AGS status on the front-end module.

[0157] This application also discloses an electronic device for running a program; wherein, when the program runs, it executes the active air intake grille control method described in any of the above embodiments.

[0158] It should be noted that the relevant descriptions of the active grille control method can be found in the corresponding embodiments described above, and will not be repeated here.

[0159] This application also discloses a vehicle, which includes the above-described active grille control device and electronic equipment.

[0160] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0161] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0162] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An active air intake grille control method, characterized in that, The method includes: Monitor the ambient temperature outside the vehicle and the status of the windshield wipers; When the ambient temperature is less than or equal to a preset temperature value and the windshield wiper is on, monitor the overall vehicle status and the operating frequency of the windshield wiper. Based on the overall vehicle status and the operating frequency of the windshield wipers, the active air intake grille (AGS) and fan are controlled to execute corresponding control strategies. The step of controlling the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes: Based on the overall vehicle status and the preset frequency ranges in which the windshield wipers operate, the Active Grille System (AGS) is controlled to execute corresponding multi-level control strategies. The multi-level control strategies include at least a first control strategy and a second control strategy with a risk level higher than the first control strategy. The operating frequency of the windshield wipers includes multiple preset frequency ranges, and the operating frequency range corresponding to the first control strategy is smaller than the operating frequency range corresponding to the second control strategy. When executing the first control strategy, only the active air intake grille (AGS) is controlled to open and close, while the fan remains off or not started. When executing the second control strategy, the active air intake grille AGS is controlled to open and close, and at the same time, the fan is controlled to rotate in the opposite direction to blow air to the outside of the active air intake grille AGS.

2. The method according to claim 1, characterized in that, The step of controlling the active grille shutter (AGS) to execute corresponding multi-level control strategies based on the vehicle's overall status and the preset frequency ranges in which the windshield wipers operate includes: When the vehicle is idling and the windshield wipers are turned on, or when the windshield wipers operate at a frequency less than or equal to a first preset frequency, the active grille shutter (AGS) is controlled to execute a first-level control strategy. The first-level control strategy involves controlling the active grille shutter to switch from a fully closed state to a fully open state, and then switching it back from the fully open state to the fully closed state, executing the first-level control strategy once every first preset time interval.

3. The method according to claim 1, characterized in that, The step of controlling the active grille shutter (AGS) to execute corresponding multi-level control strategies based on the vehicle's overall status and the preset frequency ranges in which the windshield wipers operate includes: When the vehicle is in motion, and the operating frequency of the windshield wiper is greater than a first preset frequency and less than or equal to a second preset frequency, the active air intake grille (AGS) is controlled to execute a secondary control strategy. The secondary control strategy involves controlling the active air intake grille to switch from a fully closed state to a fully open state, and then switching from the fully open state back to the fully closed state, executing the secondary control strategy once every second preset time interval.

4. The method according to claim 1, characterized in that, The step of controlling the active grille shutter (AGS) to execute corresponding multi-level control strategies based on the vehicle's overall status and the preset frequency ranges in which the windshield wipers operate includes: When the vehicle is in motion, and the operating frequency of the windshield wiper is greater than the second preset frequency and less than or equal to the third preset frequency, the active air intake grille (AGS) is controlled to execute a three-level control strategy. The three-level control strategy involves controlling the active air intake grille to switch from a fully closed state to a fully open state, and then switching from the fully open state back to the fully closed state, executing the three-level control strategy once every third preset time interval.

5. The method according to claim 1, characterized in that, The step of controlling the active grille shutter (AGS) to execute corresponding multi-level control strategies based on the vehicle's overall status and the preset frequency ranges in which the windshield wipers operate includes: When the vehicle is in motion, and the windshield wiper operates at a frequency greater than a third preset frequency and less than or equal to a fourth preset frequency, or when the windshield wiper is in the first gear, the active air intake grille (AGS) is controlled to execute a four-level control strategy, and the fan is controlled to rotate at full speed and in reverse. The four-level control strategy involves controlling the active air intake grille to switch from a fully closed state to a fully open state, and then repeatedly switching from the fully open state to a preset grille opening, and then switching from the preset grille opening back to the fully open state. The execution time is a fourth preset time, and the four-level control strategy is executed once every third preset time.

6. The method according to claim 5, characterized in that, Also includes: After controlling the active air intake grille AGS to execute the fourth-level control strategy, or during the execution of the fourth-level control strategy, controlling the active air intake grille AGS to switch to any one of the first-level to third-level control strategies, or detecting that the windshield wipers are in a closed state, controlling the active air intake grille AGS to close completely and controlling the fan to stop running.

7. The method according to claim 1, characterized in that, The step of controlling the active grille shutter (AGS) to execute corresponding multi-level control strategies based on the vehicle's overall status and the preset frequency ranges in which the windshield wipers operate includes: When the vehicle is in motion, if the operating frequency of the windshield wiper is greater than the fourth preset frequency, or if the windshield wiper is in the second gear, the active air intake grille AGS is controlled to repeatedly execute the four-level control strategy, and the fan is controlled to rotate at full speed and in the opposite direction until the active air intake grille AGS is controlled to switch to any of the four-level control strategies, or until the windshield wiper is detected to be in the off state. After the fifth preset time, the active air intake grille (AGS) is completely closed.

8. An active air intake grille control device, characterized in that, The device includes: The first monitoring module is used to monitor the ambient temperature outside the vehicle and the status of the windshield wipers. The second monitoring module is used to monitor the overall vehicle status and the operating frequency of the windshield wipers when the ambient temperature is less than or equal to a preset temperature value and the windshield wipers are in the on state. The control module is used to control the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers. The step of controlling the active grille shutter and fan to execute corresponding control strategies based on the overall vehicle status and the operating frequency of the windshield wipers includes: Based on the overall vehicle status and the preset frequency ranges in which the windshield wipers operate, the Active Grille System (AGS) is controlled to execute corresponding multi-level control strategies. The multi-level control strategies include at least a first control strategy and a second control strategy with a risk level higher than the first control strategy. The operating frequency of the windshield wipers includes multiple preset frequency ranges, and the operating frequency range corresponding to the first control strategy is smaller than the operating frequency range corresponding to the second control strategy. When executing the first control strategy, only the active air intake grille (AGS) is controlled to open and close, while the fan remains off or not started. When executing the second control strategy, the active air intake grille AGS is controlled to open and close, and at the same time, the fan is controlled to rotate in the opposite direction to blow air to the outside of the active air intake grille AGS.

9. An electronic device, characterized in that, The electronic device is used to run a program, wherein the program executes the active grille control method as described in any one of claims 1-7.

10. A vehicle, characterized in that, It includes the active grille control device as described in claim 8, and the electronic device as described in claim 9.

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