Internal and external circulation control method, electronic device, computer storage medium, computer program product and vehicle

Abstract

An internal and external circulation control method, comprising: in an internal and external circulation mode of an air conditioner (40), performing open-loop control on an internal and external circulation damper (20) of the air conditioner. Also disclosed are an electronic device (10) for implementing the control method, and a computer storage medium, a computer program product and a vehicle (100). The method can rationally adjust the ratio of internal circulation to external circulation, so as to change the temperature difference between air outside a vehicle and air inside the vehicle, thereby effectively improving the internal air environment of the vehicle, and solving the problem of glass being fogged or frosted. Compared with closed-loop based on an anti-fog sensor, a faster response speed is achieved.

Description

Internal and external circulation control method, electronic device, computer storage medium, computer program product and vehicle

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202411396617.X, filed on September 30, 2024, and entitled "Internal and external circulation control method, electronic device, computer storage medium and vehicle", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of vehicles, and in particular, to an internal and external circulation control method, an electronic device, a computer storage medium, a computer program product and a vehicle. BACKGROUND

[0004] To avoid the glass from fogging and frosting when the vehicle is running, the related technology mainly uses an automatic anti-fog sensor installed above the front windshield. The automatic anti-fog sensor can collect the glass temperature, relative humidity and air temperature, and control the internal and external circulation ratio based on the dew point temperature and the glass temperature difference. However, since the anti-fog sensor is usually arranged at the edge position, the air convection around the sensor is poor, which can cause the response lag and fluctuation of the sensor, and thus the internal and external circulation ratio needs to be adjusted until the fogging risk level changes due to the response lag of the anti-fog sensor, so that the response speed of the internal and external circulation ratio control is slow.

[0005] DISCLOSURE

[0006] The present disclosure aims to at least solve one of the technical problems existing in the prior art. To this end, one purpose of the present disclosure is to provide an internal and external circulation control method which can solve the problem of glass fogging and frosting through open-loop control.

[0007] A second purpose of the present disclosure is to provide an electronic device.

[0008] A third purpose of the present disclosure is to provide a computer storage medium.

[0009] A fourth purpose of the present disclosure is to provide a computer program product.

[0010] A fifth purpose of the present disclosure is to provide a vehicle.

[0011] To solve the above problems, the first aspect of the present disclosure provides an internal and external circulation control method, comprising: in an internal and external circulation mode of an air conditioner, performing open-loop control on an internal and external circulation damper of the air conditioner.

[0012] According to the internal and external circulation control method of the embodiment of the present disclosure, in the internal and external circulation mode of the air conditioner, the internal and external circulation air door of the air conditioner is controlled in an open loop to reasonably adjust the proportion between internal circulation and external circulation, thereby changing the temperature difference between the air outside the vehicle and the air inside the vehicle, and effectively improving the air environment inside the vehicle, solving the problem of glass fogging and frosting. Compared with the closed loop control based on the anti-fog sensor, the response speed is faster.

[0013] In some embodiments, the open loop control of the internal and external circulation air door of the air conditioner comprises: feedforward open loop control of the internal and external circulation air door.

[0014] In some embodiments, the feedforward open loop control of the internal and external circulation air door comprises: feedforward open loop control of the internal and external circulation air door according to the external environment parameter of the vehicle and the vehicle working condition information affecting the vehicle window fogging.

[0015] According to the internal and external circulation control method of the embodiment of the present disclosure, in order to avoid the problem of glass fogging and frosting of the vehicle during driving, the present application no longer relies on the feedback of the anti-fog sensor to adjust the internal and external circulation air door, but introduces feedforward open loop control to reasonably control the internal and external circulation ratio before the vehicle window fogs, thereby reducing the risk of vehicle window fogging in advance. Moreover, this process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the internal and external circulation ratio control.

[0016] In some embodiments, the feedforward open loop control of the internal and external circulation air door according to the external environment parameter of the vehicle and the vehicle working condition information affecting the vehicle window fogging comprises: determining an internal and external circulation feedforward ratio value according to the external environment parameter of the vehicle and the vehicle working condition information affecting the vehicle window fogging; and controlling the internal and external circulation air door according to the internal and external circulation feedforward ratio value.

[0017] According to the internal and external circulation control method of the embodiment of the present disclosure, the internal and external circulation feedforward ratio value is obtained through the external environment parameter of the vehicle and the vehicle working condition information affecting the vehicle window fogging, thereby controlling the internal and external circulation air door with the internal and external circulation feedforward ratio value. In order to avoid the problem of glass fogging and frosting of the vehicle during driving, the present application no longer relies on the feedback of the anti-fog sensor to adjust the internal and external circulation ratio, but introduces feedforward open loop control to calculate the internal and external circulation feedforward ratio value, thereby reasonably controlling the internal and external circulation before the vehicle window fogs, reducing the risk of vehicle window fogging in advance. Moreover, this process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the internal and external circulation ratio control.

[0018] In some embodiments, the vehicle working condition information comprises an air conditioning air outlet mode, an air volume gear and a vehicle speed, the determining of the inside-out circulation feedforward proportion value according to the outside environment parameter and the vehicle working condition information comprises: determining a basic proportion value according to the air conditioning air outlet mode and the air volume gear; determining a feedforward compensation value according to the outside environment parameter and the vehicle speed; and determining the inside-out circulation feedforward proportion value according to the feedforward compensation value and the basic proportion value.

[0019] In some embodiments, the determining of the basic proportion value according to the air conditioning air outlet mode and the air volume gear comprises: obtaining a preset error compensation coefficient; determining a mode proportion coefficient according to the air conditioning air outlet mode; determining an air volume proportion coefficient according to the air volume gear; and determining the basic proportion value according to the preset error compensation coefficient, the mode proportion coefficient and the air volume proportion coefficient.

[0020] In some embodiments, the air conditioning air outlet mode comprises a full defrosting mode, a foot defrosting mode, a face defrosting mode and a foot defrosting mode, the mode proportion coefficient corresponding to the full defrosting mode < the mode proportion coefficient corresponding to the foot defrosting mode < the mode proportion coefficient corresponding to the face defrosting mode < the mode proportion coefficient corresponding to the foot defrosting mode.

[0021] In some embodiments, the air volume gear is inversely proportional to the air volume proportion coefficient.

[0022] In some embodiments, the outside environment parameter comprises a sunlight radiation intensity and an outside environment temperature, the determining of the feedforward compensation value according to the outside environment parameter and the vehicle speed comprises: determining a first compensation value according to the outside environment temperature and the sunlight radiation intensity, the sunlight radiation intensity being inversely proportional to the first compensation value; determining a second compensation value according to the outside environment temperature and the vehicle speed, the vehicle speed being proportional to the second compensation value; and determining the feedforward compensation value according to the first compensation value and / or the second compensation value.

[0023] In some embodiments, after the feedforward open-loop control on the inside-out circulation air door, the method further comprises: determining an inside-out circulation adjustment proportion value according to the inside relative humidity fed back by the anti-fog sensor; and adjusting the inside-out circulation feedforward proportion value according to the inside-out circulation adjustment proportion value.

[0024] In some embodiments, the determining of the inside-out circulation adjustment proportion value according to the inside relative humidity comprises: if the inside relative humidity is greater than or equal to an upper limit value of a preset humidity range, determining the inside-out circulation adjustment proportion value as a first adjustment proportion value; and if the inside relative humidity is less than a lower limit value of the preset humidity range, determining the inside-out circulation adjustment proportion value as a second adjustment proportion value.

[0025] In some embodiments, the adjusting the inner-outer circulation feedforward proportion value according to the inner-outer circulation adjustment proportion value comprises: in a case where the vehicle interior relative humidity is greater than or equal to an upper limit value of a preset humidity range, increasing the inner-outer circulation feedforward proportion value by the first adjustment proportion value; or in a case where the vehicle interior relative humidity is less than a lower limit value of the preset humidity range, decreasing the inner-outer circulation feedforward proportion value by the second adjustment proportion value; and stopping the continuous adjustment of the inner-outer circulation feedforward proportion value until the vehicle interior relative humidity satisfies a stop adjustment condition.

[0026] In some embodiments, in a case where the vehicle interior relative humidity is greater than or equal to the upper limit value of the preset humidity range, the stop adjustment condition is that the vehicle interior relative humidity of a current detection period is less than the vehicle interior relative humidity of a previous detection period; and in a case where the vehicle interior relative humidity is less than the lower limit value of the preset humidity range, the stop adjustment condition is that the vehicle interior relative humidity of the current detection period is greater than or equal to the vehicle interior relative humidity of the previous detection period.

[0027] In some embodiments, the method further comprises: determining the preset humidity range according to a wind volume gear.

[0028] A second aspect embodiment of the present disclosure provides an electronic device, comprising: at least one processor; a memory in communication connection with the at least one processor; wherein the memory stores a computer program which can be executed by the at least one processor, and the at least one processor executes the computer program to implement the inner-outer circulation control method of the above-mentioned embodiments.

[0029] The electronic device according to the embodiments of the present disclosure implements the inner-outer circulation control method of the above-mentioned embodiments by executing the computer program by the processor, so that the inner-outer circulation can be reasonably controlled before the window fogging, the risk of window fogging can be reduced in advance, and the response speed of the inner-outer circulation proportion control can be improved.

[0030] A third aspect embodiment of the present disclosure provides a computer storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the inner-outer circulation control method of the above-mentioned embodiments.

[0031] A fourth aspect embodiment of the present disclosure provides a computer program product, comprising a computer program, and the computer program is executed by a processor to implement the steps of the inner-outer circulation control method of the above-mentioned embodiments.

[0032] A fifth aspect embodiment of the present disclosure provides a vehicle, comprising: a vehicle-mounted air conditioner, the vehicle-mounted air conditioner comprising an inner-outer circulation air door; and a controller connected with the inner-outer circulation air door, configured to execute the inner-outer circulation control method of the above-mentioned embodiments.

[0033] According to the vehicle of the embodiment of the present disclosure, the inner-outer circulation control method in the above embodiment can be used to reasonably control the inner-outer circulation before the window is fogged, so as to reduce the risk of window fogging in advance and improve the response speed of the inner-outer circulation ratio control.

[0034] Additional aspects and advantages of the present disclosure will be described in the following description and become apparent from the following detailed description, or can be learned from practice of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0036] FIG. 1 is a flowchart of an inner-outer circulation control method according to an embodiment of the present disclosure;

[0037] FIG. 2 is a flowchart of an inner-outer circulation control method according to an embodiment of the present disclosure;

[0038] FIG. 3 is a structural block diagram of an electronic device according to an embodiment of the present disclosure;

[0039] FIG. 4 is a structural block diagram of a vehicle according to an embodiment of the present disclosure.

[0040] Reference signs: vehicle 100; electronic device 10; inner-outer circulation damper 20; controller 30; vehicle-mounted air conditioner 40; processor 1; memory 2. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0042] To solve the above problem, the first aspect embodiment of the present disclosure provides an inner-outer circulation control method, which can solve the problem of glass fogging and frosting.

[0043] The inner-outer circulation control method of the present disclosure is described below with reference to FIG. 1, which includes at least step S1: in the inner-outer circulation mode of the air conditioner, the inner-outer circulation damper of the air conditioner is controlled in open loop.

[0044] In an embodiment, to solve the problem of glass fogging and frosting, the inner-outer circulation ratio of the air conditioner can be controlled based on information collected by the automatic anti-fog sensor. This method based on the automatic anti-fog sensor can be referred to as closed loop control.

[0045] The open loop control of the present application can be relative to the closed loop control, for example, the open loop control can not be limited to collecting information by the automatic anti-fog sensor, but based on information other than the information collected by the automatic anti-fog sensor, such as vehicle external environment information and / or other related vehicle condition information.

[0046] Specifically, in the internal and external circulation mode of the air conditioner, the internal and external circulation ratio of the air conditioner can be changed by adjusting the internal and external circulation damper. Based on this, in order to prevent the problem of vehicle window fogging and frosting caused by too high humidity in the vehicle, in the present application, the internal and external circulation damper of the air conditioner is controlled in an open loop, for example, the internal and external circulation damper can be controlled in a feedforward open loop or in a feedback open loop, to change the opening degree of the internal and external circulation damper, so as to reasonably adjust the ratio between internal and external circulation for different internal and external conditions of the vehicle, so as to change the temperature difference between the outside air and the inside air of the vehicle, and then effectively improve the air environment in the vehicle, and avoid the problem of glass fogging and frosting.

[0047] In some embodiments, open loop control can be after or before closed loop control based on automatic anti-fog sensor information acquisition, or only through open loop control to reduce or avoid glass fogging and frosting.

[0048] According to the internal and external circulation control method of the embodiments of the present disclosure, in the internal and external circulation mode of the air conditioner, the internal and external circulation damper of the air conditioner is controlled in an open loop to reasonably adjust the ratio between internal and external circulation, so as to change the temperature difference between the outside air and the inside air of the vehicle, and then effectively improve the air environment in the vehicle, solve the problem of glass fogging and frosting, and the response speed is faster than that of closed loop control based on anti-fog sensor.

[0049] In some embodiments, in order to avoid glass fogging and frosting when the vehicle is running, an automatic anti-fog sensor will be installed above the front windshield in the related art, which can collect glass temperature, relative humidity and air temperature, and control the internal and external circulation ratio based on the fogging risk level calculated by the difference between the dew point temperature and the glass temperature. However, due to the fact that the anti-fog sensor is usually arranged at the edge position, the surrounding air convection is poor, which will cause the response lag and fluctuation problem of the sensor, and thus due to the response lag of the anti-fog sensor, the internal and external circulation ratio needs to be adjusted until the fogging risk level changes, so the response speed of controlling the internal and external circulation ratio is slow. In order to solve the above problem, in the internal and external circulation mode of the air conditioner, the internal and external circulation damper is controlled in a feedforward open loop, that is, by introducing feedforward open loop control, the internal and external circulation ratio is reasonably controlled before the anti-fog sensor can monitor the vehicle window fogging, so as to reduce the risk of vehicle window fogging in advance, and solve the problem of glass fogging and frosting.

[0050] The feedforward open loop control of the internal and external circulation damper is described below, which at least includes the following steps:

[0051] Step S2, determine the vehicle external environment parameters and vehicle working condition information affecting the vehicle window fogging.

[0052] The vehicle external environment parameters can include vehicle external temperature, sunlight radiation intensity, or vehicle external humidity, etc., which can be acquired by sensors; and the vehicle working condition information affecting the vehicle window fogging can include vehicle internal temperature, vehicle internal humidity, vehicle air conditioner air outlet mode, air volume gear, and vehicle speed, etc.

[0053] In step S3, the inner-outer circulation air door is controlled by feedforward open-loop control according to the vehicle external environment parameters and the vehicle working condition information.

[0054] Specifically, to avoid the problem of glass fogging and frosting when the vehicle is running, the present application no longer relies on the feedback of the anti-fog sensor to adjust the inner-outer circulation air door, but changes the inner-outer circulation air door by introducing feedforward open-loop control, so as to reasonably control the inner-outer circulation ratio before the vehicle window fogs, thereby reducing the risk of vehicle window fogging in advance, and the process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the inner-outer circulation ratio control.

[0055] According to the inner-outer circulation control method of the embodiments of the present disclosure, to avoid the problem of glass fogging and frosting when the vehicle is running, the present application no longer relies on the feedback of the anti-fog sensor to adjust the inner-outer circulation air door, but changes the inner-outer circulation air door by introducing feedforward open-loop control, so as to reasonably control the inner-outer circulation ratio before the vehicle window fogs, thereby reducing the risk of vehicle window fogging in advance, and the process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the inner-outer circulation ratio control.

[0056] In some embodiments, the inner-outer circulation air door is controlled by feedforward open-loop control, including at least steps S3-S4.

[0057] In step S3, the inner-outer circulation feedforward ratio value is acquired according to the vehicle external environment parameters and the vehicle working condition information affecting the vehicle window fogging.

[0058] Specifically, since the fogging process is very fast, the related art cannot predict the trend risk of fogging, and can only rely on the detection value of the feedback of the anti-fog sensor for control. However, due to the arrangement position and other reasons, there is a large lag between the detection value and the actual value of the field of view, in order to solve this problem, the present application no longer relies on the feedback of the anti-fog sensor to adjust the inner-outer circulation ratio, but calculates the inner-outer circulation feedforward ratio value by introducing feedforward open-loop control, that is, the inner-outer circulation feedforward ratio value is acquired in advance by the vehicle external environment parameters and the vehicle working condition information, and the opening degree of the inner-outer circulation air door is directly adjusted to the vicinity of the required opening degree by the inner-outer circulation feedforward ratio value, so as to reasonably control the inner-outer circulation before the vehicle window fogs, thereby reducing the risk of vehicle window fogging in advance, and the process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the inner-outer circulation ratio control.

[0059] In step S4, the inner-outer circulation damper is controlled according to the inner-outer circulation feedforward proportional value.

[0060] Specifically, the inner-outer circulation damper is controlled by the inner-outer circulation feedforward proportional value, so as to predict the risk of fogging, adjust the inner-outer circulation damper in advance, and timely respond to the change of the risk of fogging, thereby avoiding the occurrence of fogging and frosting.

[0061] According to the inner-outer circulation control method, the inner-outer circulation feedforward proportional value is obtained by the vehicle external environment parameter and the vehicle working condition information affecting the vehicle window fogging, so as to control the inner-outer circulation damper by the inner-outer circulation feedforward proportional value. In order to avoid the problem of glass fogging and frosting of the vehicle during driving, the application no longer depends on the feedback of the anti-fog sensor to adjust the inner-outer circulation proportion, but introduces a feedforward open-loop control to calculate the inner-outer circulation feedforward proportional value, so as to reasonably control the inner-outer circulation before the vehicle window fogs, and reduce the risk of vehicle window fogging in advance. Moreover, the process does not need the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the inner-outer circulation proportion control.

[0062] In some embodiments, the vehicle working condition information includes an air conditioning air outlet mode, an air volume gear, and a vehicle speed. The inner-outer circulation feedforward proportional value is determined according to the vehicle external environment parameter and the vehicle working condition information, including determining a basic proportional value according to the air conditioning air outlet mode and the air volume gear; determining a feedforward compensation value according to the vehicle external environment parameter and the vehicle speed; and determining the inner-outer circulation feedforward proportional value according to the feedforward compensation value and the basic proportional value.

[0063] Specifically, considering that different air conditioning air outlet modes have certain effects on the window misting under the same air volume level, under the same air conditioning air outlet mode, the greater the air volume, the greater the fresh air flow, and the less likely the window misting; and under certain outside temperature conditions, due to the low temperature outside the vehicle, the increase in vehicle speed increases the convection of the glass surface, thereby increasing the heat exchange, reducing the temperature of the glass surface, and increasing the risk of misting. Therefore, considering the above conditions, the application determines the inside-out circulation feedforward proportion value based on the air conditioning air outlet mode, the air volume level, and the vehicle speed and other working condition information, and in combination with the vehicle external environment parameters. Specifically, the basic proportion value is obtained according to the air conditioning setting of the vehicle, and the corresponding basic proportion value under the current state is determined according to the combination of different air conditioning air outlet modes and air volume levels of the vehicle; the feedforward compensation value under the current state is determined based on the changes in the vehicle external environment parameters and the vehicle speed; the feedforward compensation value is adjusted in real time based on the basic proportion value, thereby obtaining the inside-out circulation feedforward proportion value, and the inside-out circulation damper is controlled by the inside-out circulation feedforward proportion value, thereby reasonably controlling the inside-out circulation before the window misting, reducing the risk of window misting in advance, and the process does not require the participation of the anti-fog sensor, reduces the delay problem caused by the response lag of the anti-fog sensor, and improves the response speed of the inside-out circulation proportion control.

[0064] Wherein, the inside-out circulation feedforward proportion value is determined according to the feedforward compensation value and the basic proportion value, which can refer to formula (1-1). Inside-out circulation feedforward proportion value = basic proportion value + feedforward compensation value Formula (1-1)

[0065] In some embodiments, the basic proportion value is determined according to the air conditioning air outlet mode and the air volume level, including: obtaining a preset error compensation coefficient; determining a mode proportion coefficient according to the air conditioning air outlet mode; determining an air volume proportion coefficient according to the air volume level; and determining the basic proportion value according to the preset error compensation coefficient, the mode proportion coefficient, and the air volume proportion coefficient.

[0066] Wherein, the preset error compensation coefficient is a value preset in advance, which is used for error correction in the calibration process.

[0067] Specifically, considering that the influence weight of different air conditioner air outlet modes on the window fogging is different under the same air volume level, and that the greater the air volume, the greater the fresh air flow and the less likely the window is to fog up under the same air outlet mode, the application can set corresponding mode proportion coefficients for different air conditioner air outlet modes to indicate the influence degree of the air outlet mode on the window fogging, and set corresponding air volume proportion coefficients for different air volume levels. Thus, when the basic proportion value is obtained, the mode proportion coefficient can be determined according to the current air conditioner air outlet mode of the vehicle, and the air volume proportion coefficient can be determined according to the current air volume level of the vehicle. Thus, in combination with the current air conditioner air outlet mode and air volume level of the vehicle, the basic proportion value required for reasonable control of the inside and outside circulation under the current condition is obtained according to the preset error compensation coefficient, the mode proportion coefficient and the air volume proportion coefficient, so as to reduce the risk of window fogging in advance.

[0068] wherein the basic proportion value is obtained according to the preset error compensation coefficient A, the mode proportion coefficient Sm and the air volume proportion coefficient Sf, and can refer to formula (1-2). Basic proportion value = Sm * Sf * 100% + A Formula (1-2)

[0069] In some embodiments, the air conditioner air outlet mode includes a full defrosting mode, a foot blowing defrosting mode, a face blowing mode and a foot blowing mode, and the mode proportion coefficient corresponding to the full defrosting mode < the mode proportion coefficient corresponding to the foot blowing defrosting mode < the mode proportion coefficient corresponding to the face blowing mode < the mode proportion coefficient corresponding to the foot blowing mode.

[0070] Specifically, under the same air volume level, the influence weight of different air conditioner air outlet modes on the window fogging is different, and different air conditioner air outlet modes have a corresponding mode proportion coefficient to indicate the influence degree of the air outlet mode on the window fogging, wherein the greater the mode proportion coefficient, the more likely the current air outlet mode is to cause the window to fog up.

[0071] In some embodiments, the air volume level is inversely proportional to the air volume proportion coefficient, that is, the air volume proportion coefficient Sf decreases with the increase of the air volume level.

[0072] Specifically, in the same air conditioning outflow mode, the change of the air volume will affect the influence degree of the air conditioning outflow mode on the window fogging, the vehicle has multiple air volume gears, and each gear has a corresponding proportional coefficient preset therefor. With the increase of the air volume gear, the air volume increases, and the fresh air flow is greater, and the risk of window fogging is lower. Therefore, the air volume gear can be increased, and the air volume proportional coefficient can be reduced. For example, the air volume gear can be divided into gear one, gear two, gear three and gear four. With the increase of the air volume gear, the air volume also increases. Based on the above air volume gear, the air volume proportional coefficient corresponding to the gear one is 1, the air volume proportional coefficient corresponding to the gear two is 0.8, the air volume proportional coefficient corresponding to the gear three is 0.6, and the air volume proportional coefficient corresponding to the gear four is 0.4. This is not limited.

[0073] In some embodiments, the outside environment parameter includes sunlight radiation intensity and outside environment temperature. The feedforward compensation value is determined according to the outside environment parameter and the vehicle speed, including determining a first compensation value according to the outside environment temperature and the sunlight radiation intensity, the sunlight radiation intensity being inversely proportional to the first compensation value, that is, the first compensation value presents a decreasing trend with the increase of the sunlight radiation intensity; determining a second compensation value according to the outside environment temperature and the vehicle speed, the vehicle speed being proportional to the second compensation value, that is, the second compensation value increases with the increase of the vehicle speed; and determining the feedforward compensation value according to the first compensation value and / or the second compensation value.

[0074] Specifically, under certain external temperature conditions, as the vehicle speed increases, the convection on the surface of the vehicle glass increases, which leads to increased heat exchange, resulting in a decrease in the surface temperature of the glass, thereby increasing the risk of fogging of the vehicle window. In addition, under certain external temperature conditions, fogging will cause the light transmittance of the glass to decrease and the absorption coefficient of the glass to increase, so as the intensity of solar radiation increases, the temperature of the glass will rise, and the evaporation of moisture will be accelerated. Based on the above situation, the present application comprehensively considers the factors such as the external environment temperature, the intensity of solar radiation and the vehicle speed to calculate the feedforward compensation value. Specifically, the corresponding relationship table or corresponding relationship graph between the external environment temperature, the intensity of solar radiation and the first compensation value can be formed by pre-calibration test for different external environment temperatures and different intensities of solar radiation, and the corresponding relationship table or corresponding relationship graph between the external environment temperature, the vehicle speed and the second compensation value can be formed by pre-calibration test for different external environment temperatures and different vehicle speeds. Based on this, during actual control, the first compensation value and the second compensation value can be determined by querying the corresponding relationship table / corresponding relationship graph based on the detected external environment temperature, the intensity of solar radiation and the vehicle speed, and then the feedforward compensation value is determined by the first compensation value and / or the second compensation value, and the base proportional value is compensated by the feedforward compensation value, so that the internal and external circulation ratio can be reasonably controlled in advance, the risk of fogging of the vehicle window can be reduced in advance, and the internal and external circulation damper can be directly adjusted to the vicinity of the required opening degree considering various factors in advance, thereby avoiding the problem of low control accuracy caused by reserving a large opening margin to ensure that the glass will not fog under different fogging levels, and improving the control accuracy of the internal and external circulation.

[0075] Wherein, the first compensation value and / or the second compensation value are used to determine the feedforward compensation value, specifically, either of the first compensation value and the second compensation value can be used as the feedforward compensation value, or the feedforward compensation value can be determined according to the first compensation value and the second compensation value, and no limitation is made to this.

[0076] Wherein, the feedforward compensation value can be determined according to the first compensation value and the second compensation value, which can refer to formula (1-3). Feedforward compensation value=(first compensation value+second compensation value)*100% Formula (1-3)

[0077] In some embodiments, after the feedforward open-loop control is performed on the inside-outside circulating air door, the method further comprises: determining an inside-outside circulating adjustment proportion value according to the relative humidity in the vehicle fed back by the anti-fog sensor; and adjusting the inside-outside circulating feedforward proportion value according to the inside-outside circulating adjustment proportion value. That is, after the inside-outside circulating air door is controlled to reach the target opening degree based on the inside-outside circulating feedforward proportion value, the inside-outside circulating feedforward proportion value can be further adjusted based on the change of the relative humidity in the vehicle, so as to further adjust the opening degree of the inside-outside circulating air door based on the target opening degree according to the change of the relative humidity in the vehicle, thereby further reducing the risk of fogging and preventing the problem of fogging and frosting caused by excessive humidity in the vehicle.

[0078] Specifically, the relative humidity in the vehicle can be obtained by setting an anti-fog sensor. As the relative humidity in the vehicle increases, the risk of fogging of the vehicle window increases. Therefore, after the inside-outside circulating air door is controlled to reach the target opening degree based on the inside-outside circulating feedforward proportion value, the inside-outside circulating adjustment proportion value can be obtained according to the relative humidity in the vehicle, and the inside-outside circulating feedforward proportion value is adjusted by the inside-outside circulating adjustment proportion value, that is, the opening degree of the inside-outside circulating air door is further adjusted based on the target opening degree according to the change of the relative humidity in the vehicle. Specifically, if the relative humidity in the vehicle increases, the proportion of opening the outside circulation can be appropriately increased or fully opened to introduce more external fresh air to improve the humidity in the vehicle and reduce the risk of fogging of the vehicle window; if the relative humidity in the vehicle decreases, the proportion of opening the inside circulation can be appropriately reduced or closed to improve the humidity in the vehicle and reduce the risk of fogging of the vehicle window.

[0079] In some embodiments, the inside-outside circulating adjustment proportion value is obtained according to the relative humidity in the vehicle, comprising: if the relative humidity in the vehicle is greater than or equal to an upper limit value of a preset humidity range, determining the inside-outside circulating adjustment proportion value as a first adjustment proportion value; and if the relative humidity in the vehicle is less than a lower limit value of the preset humidity range, determining the inside-outside circulating adjustment proportion value as a second adjustment proportion value.

[0080] The preset humidity range is a range of relative humidity in the vehicle that is not easy to cause fogging of the vehicle window and is pre-labeled. The first adjustment proportion value and the second adjustment proportion value can also be pre-labeled according to actual conditions. For example, the first adjustment proportion value can be 5%, and the second adjustment proportion value can be 3%, which is not limited.

[0081] In some embodiments, the adjusting the inner-outer circulation feedforward proportion value according to the inner-outer circulation adjustment proportion value comprises: in a case where the in-vehicle relative humidity is greater than or equal to an upper limit value of the preset humidity range, increasing the inner-outer circulation feedforward proportion value by a first adjustment proportion value; or in a case where the in-vehicle relative humidity is less than a lower limit value of the preset humidity range, decreasing the inner-outer circulation feedforward proportion value by a second adjustment proportion value; and stopping the continuous adjustment of the inner-outer circulation feedforward proportion value until the in-vehicle relative humidity satisfies a stop adjustment condition.

[0082] Specifically, in a case where the in-vehicle relative humidity is greater than or equal to the upper limit value of the preset humidity range, the inner-outer circulation feedforward proportion value is increased by the first adjustment proportion value, so that the proportion of opening the outer circulation is appropriately increased; and in a case where the in-vehicle relative humidity is less than the lower limit value of the preset humidity range, the inner-outer circulation feedforward proportion value is decreased by the second adjustment proportion value, so that the proportion of opening the inner circulation is appropriately decreased. Thus, based on the above control, the inner-outer circulation proportion can be reasonably adjusted under different humidity conditions, so as to improve the in-vehicle humidity condition and reduce the risk of window fogging. Meanwhile, when the inner-outer circulation control is performed, a detection period of the in-vehicle relative humidity is set, that is, the sensor re-detects the in-vehicle relative humidity every detection period, and if the in-vehicle relative humidity is not within the preset humidity range, the inner-outer circulation feedforward proportion value is continuously adjusted until the in-vehicle relative humidity satisfies the stop adjustment condition, and the continuous adjustment of the inner-outer circulation feedforward proportion value is stopped. The sensor detection period can be set according to actual conditions, which is not specifically limited here, for example, the detection period is set to 8s, 9s, 10s, etc.

[0083] For example, the first adjustment percentage value can be set as 5%, and the second adjustment percentage value can be set as 3%. If it is determined in the first detection period that the relative humidity in the vehicle is greater than or equal to the upper limit value of the preset humidity range, the first adjustment percentage value is added to the inner-outer circulation feedforward percentage value S, i.e., the inner-outer circulation damper is controlled by (S+5%). If it is still determined in the second detection period that the relative humidity in the vehicle is greater than or equal to the upper limit value of the preset humidity range, the first adjustment percentage value is added to (S+5%), i.e., the inner-outer circulation damper is controlled by (S+5%+5%). In this way, if it is determined in the Nth detection period that the relative humidity in the vehicle meets the stop adjustment condition, the compensation is stopped, and the inner-outer circulation damper is controlled by S+(N-1)*5%. Similarly, if it is determined in the first detection period that the relative humidity in the vehicle is less than the lower limit value of the preset humidity range, the second adjustment percentage value is subtracted from the inner-outer circulation feedforward percentage value S, i.e., the inner-outer circulation damper is controlled by (S-3%). If it is still determined in the second detection period that the relative humidity in the vehicle is less than the lower limit value of the preset humidity range, the second adjustment percentage value is subtracted from (S-3%), i.e., the inner-outer circulation damper is controlled by (S-3%-3%). In this way, if it is determined in the Nth detection period that the relative humidity in the vehicle meets the stop adjustment condition, the compensation is stopped, and the inner-outer circulation damper is controlled by S-(N-1)*5%.

[0084] In some embodiments, in the case where the relative humidity in the vehicle is greater than or equal to the upper limit value of the preset humidity range, the stop adjustment condition is that the relative humidity in the current detection period is less than the relative humidity in the last detection period; in the case where the relative humidity in the vehicle is less than the lower limit value of the preset humidity range, the stop adjustment condition is that the relative humidity in the current detection period is greater than or equal to the relative humidity in the last detection period.

[0085] Specifically, in the case where the relative humidity in the vehicle is greater than or equal to the upper limit value of the preset humidity range, if it is detected that the relative humidity in the current detection period is less than the relative humidity in the last detection period, it indicates that the relative humidity in the vehicle has decreased, and thus the adjustment of the inner-outer circulation damper is stopped under this condition to avoid the relative humidity in the vehicle exceeding the preset humidity range; in the case where the relative humidity in the vehicle is less than the lower limit value of the preset humidity range, if it is detected that the relative humidity in the current detection period is greater than or equal to the relative humidity in the last detection period, it indicates that the relative humidity in the vehicle has increased, and thus the adjustment of the inner-outer circulation damper is stopped under this condition to avoid the relative humidity in the vehicle exceeding the preset humidity range.

[0086] In some embodiments, the method of the present application further comprises determining the preset humidity range according to the air volume gear.

[0087] Specifically, since the air volume will directly affect the convection intensity at the anti-fog sensor, the air volume will cause a deviation between the collection value of the anti-fog sensor and the actual value. Based on the above situation, the preset humidity range that meets the current situation can be determined according to the air volume position when the inner-outer circulation feedforward proportion value is adjusted based on the relative humidity in the vehicle. Specifically, for different air volume positions, the corresponding preset humidity range can be pre-set, for example, the first preset humidity range is set corresponding to the air volume position one, the second preset humidity range is set corresponding to the air volume position two, the third preset humidity range is set corresponding to the air volume position three, and the fourth preset humidity range is set corresponding to the air volume position four, and different inner-outer circulation adjustment proportion values are calibrated under different preset humidity ranges. Based on this, before the inner-outer circulation adjustment proportion value is obtained according to the relative humidity in the vehicle, the preset humidity range that meets the current situation can be determined based on the air volume position, and then the relative humidity in the vehicle is judged based on the preset humidity range that meets the current situation, and then the inner-outer circulation adjustment proportion value is determined, for example, if the current air volume position is position two, then the second preset humidity range is used to judge the relative humidity in the vehicle, that is, whether the relative humidity in the vehicle is in the second preset humidity range or greater than or equal to the upper limit value of the second preset humidity range or less than the lower limit value of the second preset humidity range, etc. Thus, the inner-outer circulation adjustment proportion value is determined in combination with the influence of the air volume on the humidity, and then the inner-outer circulation feedforward proportion value is adjusted based on the inner-outer circulation adjustment proportion value, which can further improve the control accuracy of the inner-outer circulation.

[0088] It should be noted that the plurality of preset humidity ranges can be partially the same or completely different, which is not limited. For example, the influence of the air volume corresponding to position one on the convection intensity at the anti-fog sensor is relatively small compared to the influence of the air volume corresponding to position two on the convection intensity at the anti-fog sensor, so the first preset humidity range and the second preset humidity range can be set to be the same, and the influence of the air volume corresponding to position one on the convection intensity at the anti-fog sensor is relatively large compared to the influence of the air volume corresponding to position four on the convection intensity at the anti-fog sensor, so the first preset humidity range and the fourth preset humidity range can be set to be different.

[0089] The inner-outer circulation control method of the embodiment of the present disclosure will be illustrated below with reference to FIG. 2, and the specific steps are as follows.

[0090] Step S4, start.

[0091] Step S5, input parameter collection, which can include vehicle external environment temperature, air conditioner air outlet mode, air volume position, relative humidity in the vehicle, sunlight radiation intensity, and vehicle speed, etc.

[0092] Step S6, determine a first compensation value based on the vehicle external environment temperature and the sunlight radiation intensity.

[0093] Step S7, determining a second compensation value based on the outside environment temperature and the vehicle speed.

[0094] Step S8, determining a basic proportion value based on the air conditioner air outlet mode and the air volume gear.

[0095] Step S9, determining a feedforward compensation value according to the first compensation value and the second compensation value.

[0096] Step S10, obtaining an inside-outside circulation adjustment proportion value based on the inside relative humidity.

[0097] Step S11, determining an inside-outside circulation feedforward proportion value according to the basic proportion value and the feedforward compensation value.

[0098] Step S12, adjusting the inside-outside circulation feedforward proportion value according to the inside-outside circulation adjustment proportion value.

[0099] Step S13, controlling the inside-outside circulation damper according to the inside-outside circulation feedforward proportion value.

[0100] In some embodiments, the method of the present application can be used for ordinary air conditioners and all air conditioner boxes with inside-outside circulation control functions such as double-layer flow, and is not limited thereto.

[0101] The second aspect embodiment of the present disclosure provides an electronic device 10, as shown in FIG. 3, comprising at least one processor 1; and a memory 2 communicatively connected to the at least one processor 1.

[0102] The memory 2 stores a computer program executable by the at least one processor 1, and the at least one processor 1 executes the computer program to implement the inside-outside circulation control method of any of the above embodiments.

[0103] The electronic device 10 according to the embodiments of the present disclosure implements the inside-outside circulation control method of the above embodiments by executing the computer program by the processor 1, which can reasonably control the inside-outside circulation before the window fogging, reduce the risk of window fogging in advance, and improve the response speed of the inside-outside circulation proportion control.

[0104] The third aspect embodiment of the present disclosure provides a computer storage medium having a computer program stored thereon, and the computer program is executed by a processor to implement the inside-outside circulation control method of any of the above embodiments.

[0105] The fourth aspect embodiment of the present disclosure provides a computer program product comprising a computer program, and the computer program is executed by a processor to implement the steps of the inside-outside circulation control method of any of the above embodiments.

[0106] The fifth aspect of the present disclosure provides a vehicle 100, as shown in FIG. 4, comprising: a vehicle air conditioner 40 and a controller 30. Wherein the vehicle air conditioner 40 comprises an inside-outside circulating air door 20; the controller 30 is connected with the inside-outside circulating air door 20, and is used for executing the inside-outside circulating control method of the above-mentioned embodiments.

[0107] The vehicle 100 according to the embodiments of the present disclosure adopts the inside-outside circulating control method of the above-mentioned embodiments, which can reasonably control the inside-outside circulation before the window fogging, reduce the risk of window fogging in advance, and improve the response speed of the inside-outside circulation ratio control. In the description of the present specification, any process or method described in the flowchart or otherwise described herein can be understood as representing a module, a segment or a part of code including one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which the functions can be performed in the order shown or discussed, including in a substantially simultaneous manner or in reverse order according to the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0108] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a list of executable instructions for implementing logic functions, which can be specifically implemented in any computer readable medium for use by or in conjunction with an instruction execution system, device or apparatus, such as a computer-based system, a system including a processor or other system that can fetch and execute instructions from the instruction execution system, device or apparatus. For the purpose of the present specification, "computer readable medium" can be any device that can contain, store, communicate, propagate or transport programs for use by or in conjunction with an instruction execution system, device or apparatus, or in conjunction with these instruction execution systems, devices or apparatus. More specific examples (non-exhaustive list) of computer readable medium include the following: electrical connections having one or more wires (electronic devices), portable computer disk boxes (magnetic devices), random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memories), fiber optic devices, and portable compact disc read-only memories (CDROMs). In addition, the computer readable medium can even be paper or other suitable medium on which the program can be printed, because the program can be electronically obtained, for example, by optical scanning of the paper or other medium, followed by editing, interpretation or processing, if necessary, in other suitable ways, and then stored in the computer memory.

[0109] It should be understood that portions of the present disclosure can be realized with hardware, software, firmware or a combination thereof. In the above embodiments, a plurality of steps or methods can be realized with software or firmware stored in a memory and executed by a suitable instruction execution system. As such, if realized with hardware and in another embodiment, any one or a combination of the following technologies known in the art can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

[0110] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof.

[0111] In addition, each functional unit in each embodiment of the present disclosure can be integrated into one processing module, or each unit can exist physically independently, or two or more units can be integrated into one module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0112] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present disclosure have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present disclosure. Those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present disclosure.

[0113] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0114] Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. An inner-outer circulation control method characterized by, The method comprises the following steps: In the internal and external circulation mode of the air conditioner, the internal and external circulation air door of the air conditioner is controlled in an open loop.

2. The inner-outer loop control method according to claim 1, wherein The internal and external circulation air door of the air conditioner is controlled in an open loop, comprising: The internal and external circulation air door is controlled in a feedforward open loop.

3. The inner-outer loop control method according to claim 2, wherein The internal and external circulation air door is controlled in a feedforward open loop, comprising: The internal and external circulation air door is controlled in a feedforward open loop according to the vehicle external environment parameter and the vehicle working condition information affecting the vehicle window fogging.

4. The inner-outer loop control method according to claim 3, wherein The internal and external circulation air door is controlled in a feedforward open loop according to the vehicle external environment parameter and the vehicle working condition information affecting the vehicle window fogging, comprising: The internal and external circulation feedforward proportional value is determined according to the vehicle external environment parameter and the vehicle working condition information affecting the vehicle window fogging. The internal and external circulation air door is controlled according to the internal and external circulation feedforward proportional value.

5. The inner-outer loop control method according to claim 4, wherein The vehicle working condition information comprises the air conditioner air outlet mode, the air volume gear and the vehicle speed, the internal and external circulation feedforward proportional value is determined according to the vehicle external environment parameter and the vehicle working condition information affecting the vehicle window fogging, comprising: The basic proportional value is determined according to the air conditioner air outlet mode and the air volume gear; The feedforward compensation value is determined according to the vehicle external environment parameter and the vehicle speed; The internal and external circulation feedforward proportional value is determined according to the feedforward compensation value and the basic proportional value.

6. The inner-outer loop control method according to claim 5, wherein The basic proportional value is determined according to the air conditioner air outlet mode and the air volume gear, comprising: A preset error compensation coefficient is obtained; The mode proportional coefficient is determined according to the air conditioner air outlet mode; The air volume proportional coefficient is determined according to the air volume gear; The basic proportional value is determined according to the preset error compensation coefficient, the mode proportional coefficient and the air volume proportional coefficient.

7. The inner-outer loop control method according to claim 6, wherein The air conditioner air outlet mode comprises the full defrosting mode, the foot blowing defrosting mode, the face blowing mode and the foot blowing mode, the mode proportional coefficient corresponding to the full defrosting mode < the mode proportional coefficient corresponding to the foot blowing defrosting mode < the mode proportional coefficient corresponding to the face blowing mode < the mode proportional coefficient corresponding to the foot blowing mode.

8. The inner-outer loop control method according to claim 6 or 7, characterized by, The air volume gear is inversely proportional to the air volume proportional coefficient.

9. The inner-outer loop control method according to any one of claims 5 to 8, characterized by, The vehicle external environment parameter comprises the sunlight radiation intensity and the vehicle external environment temperature, the feedforward compensation value is determined according to the vehicle external environment parameter and the vehicle speed, comprising: The first compensation value is determined according to the vehicle external environment temperature and the sunlight radiation intensity, the sunlight radiation intensity is inversely proportional to the first compensation value; The second compensation value is determined according to the vehicle external environment temperature and the vehicle speed, the vehicle speed is proportional to the second compensation value; The feedforward compensation value is determined according to the first compensation value and / or the second compensation value.

10. The inner-outer loop control method according to any one of claims 4-9, characterized by, After the internal and external circulation air door is controlled in a feedforward open loop, the method further comprises: The internal and external circulation adjustment proportional value is determined according to the vehicle indoor relative humidity fed back by the anti-fog sensor; The internal and external circulation feedforward proportional value is adjusted according to the internal and external circulation adjustment proportional value.

11. The inner-outer loop control method according to claim 10, wherein The internal and external circulation adjustment proportional value is determined according to the vehicle indoor relative humidity, comprising: If the vehicle indoor relative humidity is greater than or equal to the upper limit value of the preset humidity range, the internal and external circulation adjustment proportional value is determined as a first adjustment proportional value; or If the vehicle indoor relative humidity is less than the lower limit value of the preset humidity range, the internal and external circulation adjustment proportional value is determined as a second adjustment proportional value.

12. The inner-outer loop control method according to claim 11, wherein The internal and external circulation feedforward proportional value is adjusted according to the internal and external circulation adjustment proportional value, comprising: In a case where the relative humidity in the vehicle is greater than or equal to an upper limit value of the preset humidity range, the inner-outer circulation feedforward proportional value is increased by the first adjustment proportional value; Or, in a case where the relative humidity in the vehicle is less than a lower limit value of the preset humidity range, the inner-outer circulation feedforward proportional value is decreased by the second adjustment proportional value; Until the relative humidity in the vehicle satisfies a stop adjustment condition, the continuous adjustment of the inner-outer circulation feedforward proportional value is stopped.

13. The inner-outer loop control method according to claim 12, wherein In a case where the relative humidity in the vehicle is greater than or equal to an upper limit value of the preset humidity range, the stop adjustment condition is that the relative humidity in the vehicle in a current detection period is less than the relative humidity in the vehicle in a previous detection period; In a case where the relative humidity in the vehicle is less than a lower limit value of the preset humidity range, the stop adjustment condition is that the relative humidity in the vehicle in a current detection period is greater than or equal to the relative humidity in the vehicle in a previous detection period.

14. The inner-outer loop control method according to any one of claims 11-13, wherein, The method further comprises: Determining the preset humidity range according to the air volume gear.

15. An electronic device (10) characterized by Comprise: At least one processor (1); And The memory (2) is connected in communication with the at least one processor (1); Wherein, the memory (2) has stored a computer program which can be executed by the at least one processor (1), and the at least one processor (1) executes the computer program to realize the inner-outer circulation control method in any one of claims 1-14.

16. A computer storage medium having stored thereon a computer program, characterized in that The computer program is executed by the processor to realize the inner-outer circulation control method in any one of claims 1-14.

17. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the inner-outer circulation control method in any one of claims 1-14.

18. A vehicle (100), characterized in that Comprise: The vehicle-mounted air conditioner (40) comprises an inner-outer circulation air door (20); The controller (30) is connected with the inner-outer circulation air door (20), and is used for executing the inner-outer circulation control method in any one of claims 1-14.

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