A control method and device of a vehicle air conditioning system

Abstract

This application discloses a control method for a vehicle air conditioning system, including acquiring the current number of passengers in the target vehicle, external ambient humidity information, in-vehicle temperature information, and air conditioning system operating parameter information; analyzing the dehumidification capacity of the air conditioning system based on the external ambient humidity information and in-vehicle temperature information to obtain first dehumidification data; analyzing the fresh air volume demand based on the first dehumidification data and the current number of passengers to obtain air volume demand data; analyzing the air conditioning system control parameters based on the air volume demand data, the first dehumidification data, the current number of passengers, and the air conditioning system operating parameter information to obtain target control parameters for the air conditioning system; and controlling the operation of the air conditioning system of the target vehicle based on the target control parameters. The vehicle air conditioning system control method of this application can reduce the overall vehicle heating load without causing fogging in the target vehicle, thereby achieving energy-saving, fog-free heating in the target vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle air conditioning technology, and in particular to a control method and device for a vehicle air conditioning system. Background Technology

[0002] Existing vehicle air conditioning systems have two air intake modes: external circulation mode and internal circulation mode. When the vehicle is heating in winter, the vehicle's air conditioning system uses external circulation mode to prevent the windshield from fogging up and obstructing the driver's view, as well as to ensure the cleanliness of the air inside the vehicle. The vehicle's air conditioning system uses internal circulation mode to ensure heating efficiency.

[0003] However, the existing technology's adjustment of the ratio between internal and external air intake modes can easily lead to poor heating comfort and serious waste of heating energy. Summary of the Invention

[0004] This application provides a control method and device for a vehicle air conditioning system, which can reduce the heating load of the entire vehicle without fogging, thereby achieving energy-saving and fog-free heating for the target vehicle.

[0005] On the one hand, this application provides a control method for a vehicle air conditioning system, including:

[0006] Obtain the current number of drivers and passengers in the target vehicle, external humidity information, in-vehicle temperature information, and air conditioning system operating parameters;

[0007] Based on the external humidity information and the internal temperature information, the dehumidification capacity of the air conditioning system is analyzed to obtain first dehumidification data. The first dehumidification data is used to characterize the dehumidification efficiency of the air conditioning system of the target vehicle under the current environmental conditions.

[0008] Based on the first dehumidification data and the current number of drivers and passengers, an analysis of fresh air demand is performed to obtain air demand data. The air demand data is used to indicate the fresh air demand of the target vehicle under the current environmental conditions.

[0009] Based on the air volume demand data, the first dehumidification data, the current number of drivers and passengers, and the air conditioning system operating parameter information, the air conditioning system control parameters are analyzed to obtain the target control parameters of the air conditioning system.

[0010] The air conditioning system of the target vehicle is controlled based on the target control parameters.

[0011] Furthermore, the air conditioning system operating parameter information includes external static pressure data. Before acquiring the current number of passengers in the target vehicle, external ambient humidity information, in-vehicle temperature information, and air conditioning system operating parameter information, the method further includes:

[0012] Obtain the current speed information of the target vehicle;

[0013] Based on the current vehicle speed information, the external air pressure at the external air intake of the target vehicle is analyzed to obtain the external static pressure data, which is used to indicate the external air pressure at the external air intake of the target vehicle.

[0014] Furthermore, the target control parameters of the air conditioning system include the air circulation damper opening information of the air conditioning system. The air conditioning system control parameter analysis, based on the air volume demand data, the first dehumidification data, the current number of drivers and passengers, and the air conditioning system operating parameter information, yields the target control parameters of the air conditioning system, including:

[0015] Based on the first dehumidification data and the current number of drivers and passengers, the air volume of the target vehicle is analyzed to obtain vehicle air volume data, which is used to indicate the total air volume of the target vehicle under the current environmental conditions.

[0016] The vehicle interior static pressure is analyzed based on the vehicle's air outlet data to obtain vehicle interior static pressure data, which is used to indicate the air pressure inside the target vehicle.

[0017] Based on the air conditioning system operating parameter information, the air volume demand data, and the vehicle interior static pressure data, the air conditioning system's recirculation damper opening is analyzed to obtain the recirculation damper opening information. The recirculation damper opening information is used to indicate the ratio of the internal recirculation vent area to the total recirculation vent area of ​​the target vehicle.

[0018] Furthermore, the analysis of the dehumidification capacity of the air conditioning system based on the external humidity information and the internal temperature information to obtain the first dehumidification data includes:

[0019] Based on the in-vehicle temperature information, dew point temperature analysis is performed to obtain the current dew point temperature information. The current dew point temperature information is used to indicate the temperature at which the air inside the target vehicle is cooled to saturation under the condition that the humidity content remains unchanged.

[0020] The in-vehicle saturated humidity information of the target vehicle is determined based on the current dew point temperature information, and the in-vehicle saturated humidity information is used to indicate the maximum moisture content of the target vehicle under the current environmental conditions.

[0021] The dehumidification capacity of the air conditioning system is calculated based on the external humidity information and the internal humidity information to obtain the first dehumidification data.

[0022] Furthermore, the fresh air volume demand analysis based on the first dehumidification data and the current number of drivers and passengers to obtain air volume demand data includes:

[0023] Based on the current number of drivers and passengers, the humidity increase of drivers and passengers is analyzed to obtain driver and passenger humidity load data. The driver and passenger humidity load data is used to indicate the total amount of humidity increase of the in-vehicle environment of the target vehicle by the current drivers and passengers.

[0024] Based on the driver and passenger wet load data and the first dehumidification data, the fresh air volume demand analysis is performed to obtain the air volume demand data.

[0025] Furthermore, the step of analyzing the target vehicle's airflow based on the first dehumidification data and the current number of drivers and passengers to obtain vehicle airflow data includes:

[0026] Based on the driver and passenger moisture load data and the first dehumidification data, the target vehicle airflow is analyzed to obtain the vehicle airflow data. The vehicle airflow data is directly proportional to the driver and passenger moisture load data and inversely proportional to the first dehumidification data.

[0027] Furthermore, the step of analyzing the humidification of the driver and passenger objects based on the current number of such objects to obtain the driver and passenger object moisture load data includes:

[0028] Obtain the object category of each current driver-passenger object corresponding to the current number of driver-passenger objects;

[0029] Based on the in-vehicle temperature information and the object category of each current driver and passenger, determine the humidification amount of each current driver and passenger under the current environmental conditions;

[0030] The humidity load data of the driver and passenger objects is obtained by summing the humidity increase of each current driver and passenger object.

[0031] Furthermore, the ambient humidity information outside the vehicle is obtained using the following methods:

[0032] Obtain the current network transmission parameters of the target vehicle;

[0033] If the current network transmission parameters meet the preset network transmission conditions, a request to obtain environmental humidity information is sent to the target server.

[0034] Receive the external humidity information from the target server based on the environmental humidity information acquisition request.

[0035] Furthermore, the method also includes:

[0036] If the current network transmission parameters do not meet the preset network transmission conditions, obtain the vehicle's external ambient temperature information;

[0037] Determine the vehicle exterior saturated humidity information corresponding to the vehicle exterior ambient temperature information, and define the vehicle exterior saturated humidity information as the vehicle exterior ambient humidity information.

[0038] On the other hand, this application provides a control device for a vehicle air conditioning system, comprising:

[0039] Acquisition module: used to acquire the current number of drivers and passengers in the target vehicle, external humidity information, in-vehicle temperature information, and air conditioning system operating parameter information;

[0040] First analysis module: used to analyze the dehumidification capacity of the air conditioning system based on the external humidity information and the internal temperature information, and obtain first dehumidification data. The first dehumidification data is used to characterize the dehumidification efficiency of the air conditioning system of the target vehicle under the current environmental conditions.

[0041] The second analysis module is used to perform fresh air demand analysis based on the first dehumidification data and the current number of drivers and passengers to obtain air demand data, which is used to indicate the fresh air demand of the target vehicle under the current environmental conditions.

[0042] The third analysis module is used to analyze the air conditioning system control parameters based on the air volume demand data, the first dehumidification data, the current number of drivers and passengers, and the air conditioning system operating parameter information, so as to obtain the target control parameters of the air conditioning system.

[0043] Control module: Used to control the operation of the air conditioning system of the target vehicle based on the target control parameters.

[0044] On the other hand, this application provides a computer-readable storage medium storing at least one instruction or at least one program, wherein the at least one instruction or the at least one program is loaded by a processor and executed as described above for the control method of a vehicle air conditioning system.

[0045] On the other hand, this application provides an electronic device for implementing the above-described vehicle air conditioning system control method. The electronic device includes a processor and a memory. The memory stores at least one instruction or at least one program. The at least one instruction or the at least one program is loaded and executed by the processor to implement the above-described vehicle air conditioning system control method.

[0046] The control method and device for a vehicle air conditioning system provided in this application have the following beneficial effects:

[0047] The vehicle air conditioning system control method of this application includes acquiring the current number of passengers in the target vehicle, external ambient humidity information, in-vehicle temperature information, and air conditioning system operating parameter information; analyzing the dehumidification capacity of the air conditioning system based on the external ambient humidity information and in-vehicle temperature information to obtain first dehumidification data; analyzing the fresh air volume demand based on the first dehumidification data and the current number of passengers to obtain air volume demand data; analyzing the air conditioning system control parameters based on the air volume demand data, the first dehumidification data, the current number of passengers, and air conditioning system operating parameter information to obtain target control parameters for the air conditioning system; and controlling the operation of the air conditioning system of the target vehicle based on the target control parameters. In this way, the heating load of the entire vehicle can be reduced to the maximum extent without fogging of the target vehicle, thereby achieving energy-saving and fog-free heating of the target vehicle. Attached Figure Description

[0048] To more clearly illustrate the technical solutions and advantages in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic flowchart of a control method for a vehicle air conditioning system provided in an embodiment of this application;

[0050] Figure 2 This application provides a schematic diagram of a process for obtaining first dehumidification data in an embodiment of the present application.

[0051] Figure 3 This application provides a schematic diagram of a process for obtaining air volume demand data in an embodiment of the present application.

[0052] Figure 4 This application provides a schematic diagram of a process for obtaining wet load data of drivers and passengers, as illustrated in an embodiment of the present application.

[0053] Figure 5 This application provides a schematic diagram of a process for acquiring external static pressure data in an embodiment of the present application.

[0054] Figure 6 This is a schematic diagram of a process for obtaining the opening information of a circulating damper, provided in an embodiment of this application.

[0055] Figure 7 This application provides a schematic diagram of a process for obtaining humidity information of the external environment of a vehicle.

[0056] Figure 8 This application provides another flowchart for obtaining external humidity information.

[0057] Figure 9 This is a schematic diagram of the structure of a vehicle air conditioning system provided in an embodiment of this application;

[0058] Figure 10 A flowchart of a control method for a vehicle air conditioning system provided in this application embodiment;

[0059] Figure 11 A schematic diagram of the structure of a control device for a vehicle air conditioning system provided in an embodiment of this application;

[0060] Figure 12 This is a hardware structure block diagram of an electronic device for implementing a control method for a vehicle air conditioning system, provided as an embodiment of this application.

[0061] The following is supplementary explanation of the attached figures:

[0062] 10 - Circulation damper; 20 - Internal circulation air outlet; 30 - External circulation air outlet; 40 - Blower. Detailed Implementation

[0063] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0064] It should be noted that the terms "first," "second," etc., 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 of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0065] The following combination Figure 1 This application introduces a control method for a vehicle air conditioning system, which includes:

[0066] S101. Obtain the current number of drivers and passengers N in the target vehicle, the external humidity information D1, the internal temperature information, and the air conditioning system operating parameters.

[0067] In some embodiments, the current driver and passenger of the target vehicle may include a living object riding in the vehicle, which may include, but is not limited to, the current driver and passenger and pets; wherein, the current driver and passenger may specifically include adults, children and infants.

[0068] In some embodiments, the vehicle interior temperature information can be obtained through an interior temperature sensor.

[0069] S102. Based on the external ambient humidity information D1 and the internal temperature information, the dehumidification capacity of the air conditioning system is analyzed to obtain the first dehumidification data D3. The first dehumidification data D3 is used to characterize the dehumidification efficiency of the target vehicle's air conditioning system under the current environmental conditions.

[0070] In this embodiment of the application, please refer to Figure 2 S102 includes:

[0071] S201. Perform dew point temperature analysis based on the vehicle interior temperature information to obtain the current dew point temperature information T2. ​​The current dew point temperature information T2 is used to indicate the temperature at which the air inside the target vehicle is cooled to saturation under the condition that the humidity content remains unchanged.

[0072] In some embodiments, the vehicle interior temperature information includes the inner surface temperature T1 of the window glass and the interior ambient temperature information. The inner surface temperature T1 of the window glass is used to indicate the current temperature of the inner surface of the window glass, and the interior ambient temperature information is used to indicate the current temperature of the interior environment. Specifically, the inner surface temperature T1 of the window glass can be acquired by a window glass temperature sensor.

[0073] In some embodiments, dew point temperature analysis is performed based on the inner surface temperature T1 of the window glass to obtain the current dew point temperature information T2; the current dew point temperature information T2 is proportional to the inner surface temperature T1 of the window glass; specifically, the current dew point temperature information T2 can be calculated using the following formula, where a is a margin coefficient, and specifically, a can be an integer greater than 1.

[0074] T2 = T1 - a

[0075] In some embodiments, the window glass fogs up when the inner surface temperature T1 of the target vehicle's window glass is lower than the current dew point temperature information T2; and the window glass does not fog up when the inner surface temperature T1 of the target vehicle's window glass is higher than the current dew point temperature information T2.

[0076] S202. Determine the in-vehicle saturated humidity information D2 of the target vehicle based on the current dew point temperature information T2. ​​The in-vehicle saturated humidity information D2 is used to indicate the maximum moisture content of the target vehicle under the current environmental conditions.

[0077] In some embodiments, based on a first preset correspondence, the in-vehicle saturated humidity information D2 corresponding to the current dew point temperature information T2 is determined; for example, the in-vehicle saturated humidity information D2 can be the weight of moisture contained in a unit weight of dry air inside the target vehicle.

[0078] Specifically, the first preset correspondence can be a table of humid air temperature and humidity properties.

[0079] S203. Calculate the dehumidification capacity of the air conditioning system based on the external ambient humidity information D1 and the in-vehicle saturated humidity information D2 to obtain the first dehumidification data D3.

[0080] In some embodiments, the external humidity information D1 can be the weight of water contained in a unit weight of dry air in the external environment; the first dehumidification data D3 is inversely proportional to the external humidity information D1, and the first dehumidification data D3 is directly proportional to the in-vehicle saturation humidity information D2; specifically, the first dehumidification data D3 can be calculated using the following formula.

[0081] D3 = D2 - D1

[0082] S103. Based on the first dehumidification data D3 and the current number of drivers and passengers N, perform fresh air demand analysis to obtain air demand data Q1. Air demand data Q1 is used to indicate the fresh air demand of the target vehicle under the current environmental conditions.

[0083] In some embodiments, the air entering the vehicle interior through the air conditioning system of the target vehicle includes fresh air and return air; wherein, the air entering the vehicle interior through the external circulation of the air conditioning system is fresh air, and the air entering the vehicle interior again through the internal circulation of the air conditioning system is return air.

[0084] In some embodiments, when the outside temperature is low, such as in winter, the high humidity inside the vehicle can be dehumidified by the low humidity fresh air from outside the vehicle. The more fresh air enters the vehicle through the external circulation of the air conditioning system, the less likely the target vehicle is to fog up, but the heating load of the target vehicle is also greater. The vehicle air conditioning system control method provided in this application embodiment can determine the minimum fresh air volume for the target vehicle to not fog up, i.e., the air volume demand data Q1, so as to reduce the heating load of the target vehicle and thus achieve energy-saving and fog-free heating of the target vehicle.

[0085] In some embodiments, the first dehumidification data D3 can indicate the maximum dehumidification capacity per unit fresh air volume; the air volume demand data Q1 is inversely proportional to the first dehumidification data D3, and the air volume demand data Q1 is directly proportional to the current number of passengers N.

[0086] In this embodiment of the application, please refer to Figure 3 S103 includes:

[0087] S301. Based on the current number of drivers and passengers N, perform a humidity increase analysis of the drivers and passengers to obtain driver and passenger humidity load data g1. Driver and passenger humidity load data g1 is used to indicate the total amount of humidity increase of the target vehicle's interior environment by the current drivers and passengers.

[0088] In this embodiment of the application, the driver and passenger wet load data g1 is directly proportional to the current number of drivers and passengers N; specifically, the driver and passenger wet load data g1 can be calculated by the following formula, where g2 is a preset value of single person wet load. For example, g2 can be the weight of moisture added to the interior environment of the target vehicle by the driver and passenger per unit time.

[0089] g1 = N * g2

[0090] In this embodiment of the application, please refer to Figure 4 S301 may also include:

[0091] S401. Obtain the object category of each current driver and passenger object corresponding to the current number N of driver and passenger objects.

[0092] In some embodiments, each of the N current driver-passenger objects has its own corresponding object category; the object category may include, but is not limited to, adults, children and infants; for example, the number N of current driver-passenger objects can be 4, specifically including 2 adults, 1 child and 1 infant.

[0093] Specifically, the vehicle's camera can be used to take photos to obtain the object category of each current driver and passenger.

[0094] S402. Based on the in-vehicle temperature information and the object category of each current driver and passenger, determine the humidification amount of each current driver and passenger under the current environmental conditions.

[0095] In some embodiments, the humidification amount of each current driver / passenger under the current environmental conditions is determined based on the in-vehicle ambient temperature information and the object category of each current driver / passenger. Specifically, the humidification amount of each current driver / passenger under the current in-vehicle ambient temperature conditions is determined based on a second preset correspondence. Specifically, the second preset correspondence can indicate the correspondence between the driver / passenger of each object category and the humidification amount of the driver / passenger under the current in-vehicle temperature conditions.

[0096] Generally, the amount of humidification for adults under the current vehicle interior temperature conditions is greater than that for children under the same conditions, and the amount of humidification for children under the same conditions is greater than that for infants and young children under the same conditions.

[0097] S403. Based on the humidification amount of each current driver and passenger object, sum and calculate to obtain the driver and passenger object humid load data g1.

[0098] In some embodiments, the driver and passenger moisture load data g1 is directly proportional to the moisture increase of each current driver and passenger; for example, the driver and passenger moisture load data g1 can be the total weight of moisture added to the interior environment of the target vehicle by all current drivers and passengers per unit time. Thus, by assigning differentiated values ​​to the moisture dissipation of different categories of drivers and passengers, the accuracy of calculating the driver and passenger moisture load data g1 can be improved.

[0099] S302. Based on the driver and passenger wet load data g1 and the first dehumidification data D3, the fresh air volume demand analysis is performed to obtain the air volume demand data Q1.

[0100] In some embodiments, the air volume demand data Q1 is directly proportional to the driver and passenger moisture load data g1, and inversely proportional to the first dehumidification data D3. Specifically, the air volume demand data Q1 can be calculated using the following formula, where ρ1 represents the air density corresponding to the current outside temperature information. For example, Q1 can be the fresh air volume per unit time.

[0101]

[0102] In some embodiments, ρ1 corresponding to the current outside temperature information is determined based on a third preset correspondence; wherein, the third preset correspondence indicates the correspondence between the outside temperature information and the outside air density.

[0103] In some embodiments, the current outside temperature information can be obtained based on an outside temperature sensor.

[0104] S104. Based on the air volume demand data Q1, the first dehumidification data D3, the current number of drivers and passengers N, and the air conditioning system operating parameter information, analyze the air conditioning system control parameters to obtain the target control parameters of the air conditioning system.

[0105] In this embodiment of the application, the air conditioning system operating parameter information includes external static pressure data P2. Please refer to [link / reference]. Figure 5 Prior to S101, the control methods for vehicle air conditioning systems also included:

[0106] S501. Obtain the current speed information V of the target vehicle.

[0107] S502. Based on the current vehicle speed information V, analyze the external air pressure of the target vehicle's external air intake to obtain external static pressure data P2. External static pressure data P2 is used to indicate the external air pressure of the target vehicle's external air intake.

[0108] In some embodiments, the external static pressure data P2 is proportional to the current vehicle speed information V; specifically, the external static pressure data P2 can be calculated using the following formula, where R2 represents the resistance coefficient of the fresh air ventilation chamber; specifically, the fresh air ventilation chamber is a partial external circulation channel for the ambient air outside the vehicle to the external circulation damper.

[0109] P2 = V 2 *R2

[0110] In this embodiment, the target control parameters of the air conditioning system include the air conditioning system's recirculation damper opening information. Please refer to [link / reference needed]. Figure 6 S104 includes:

[0111] S601. Based on the first dehumidification data D3 and the current number of drivers and passengers N, analyze the air volume of the target vehicle to obtain the vehicle air volume Q2. The vehicle air volume Q2 is used to indicate the total air volume of the target vehicle under the current environmental conditions.

[0112] In this embodiment of the application, S601 includes:

[0113] Based on the driver and passenger wet load data g1 and the first dehumidification data D3, the air output of the target vehicle is analyzed to obtain the vehicle air output data Q2. The vehicle air output data Q2 is directly proportional to the driver and passenger wet load data g1, and inversely proportional to the first dehumidification data D3.

[0114] In some embodiments, the vehicle exhaust air data Q2 is the ventilation volume maintained by the closed vehicle corresponding to the air volume demand data Q1, that is, the leakage volume of the target vehicle; specifically, the vehicle exhaust air data Q2 can be calculated using the following formula, where ρ2 represents the air density corresponding to the current in-vehicle ambient temperature information.

[0115] For example, Q2 can be the volume of air leakage from the entire vehicle per unit time.

[0116]

[0117] S602. Analyze the static pressure inside the vehicle based on the vehicle's air outlet data Q2 to obtain the static pressure data P1 inside the vehicle. The static pressure data P1 inside the vehicle is used to indicate the air pressure inside the target vehicle.

[0118] In some embodiments, the in-vehicle static pressure data P1 is proportional to the vehicle air outlet data Q2; specifically, the in-vehicle static pressure data P1 can be calculated using the following formula, where R1 represents the leakage resistance coefficient of the enclosed vehicle.

[0119] P1 = Q2 2 *R1

[0120] S603. Based on the air conditioning system operating parameter information, air volume demand data Q1, and vehicle static pressure data P1, analyze the opening of the air conditioning system's recirculation damper to obtain recirculation damper opening information. The recirculation damper opening information is used to indicate the ratio of the area of ​​the internal recirculation air vent 20 to the total area of ​​the recirculation air vents of the target vehicle.

[0121] In some embodiments, the total area of ​​the circulating air vents is the sum of the area of ​​the inner circulating air vent 20 and the area of ​​the outer circulating air vent 30.

[0122] In some embodiments, the air conditioning system operating parameter information also includes the air conditioning unit blower 40 speed information and air outlet mode information; based on the air conditioning unit blower performance parameter table, the following first relationship corresponding to the air conditioning unit blower 40 speed information and air outlet mode information is determined; wherein, P3 represents the static pressure inside the circulating damper 10, that is, the air conditioning unit blower inlet static pressure, R3 represents the air conditioning unit resistance coefficient, and Q3 represents the total air volume entering the target vehicle interior environment through the air conditioning unit blower 40; for example, Q3 can be the total air volume entering the target vehicle interior environment per unit time.

[0123] Q3 = (P1 - P3) 0.5 *R3

[0124] In some embodiments, the external circulation air volume, i.e., the air volume demand data Q1, satisfies the following second relationship, where Cd represents the flow resistance coefficient, I represents the air conditioning system's circulation damper opening information, i.e., the internal circulation ratio of the circulation damper, i.e., the ratio of the area of ​​the internal circulation vent 20 of the target vehicle to the total area of ​​the circulation vents; A is the total area of ​​the circulation damper 10, i.e., the sum of the area of ​​the internal circulation vent 20 of the target vehicle and the area of ​​the external circulation vent 30.

[0125]

[0126] In some embodiments, the internal circulation air volume specifically satisfies the following third relationship: the internal circulation air volume is the difference between the total air volume Q3 of the air conditioning blower 40 entering the interior environment of the target vehicle and the air volume demand data Q1.

[0127]

[0128] In some embodiments, based on the first relation, the second relation, and the third relation, the air circulation damper opening information I of the air conditioning system, the total air volume Q3 of the air conditioning unit blower 40 entering the interior environment of the target vehicle, and the static pressure P3 inside the air circulation damper can be determined.

[0129] S105. Control the operation of the air conditioning system of the target vehicle based on the target control parameters.

[0130] In some embodiments, the operation of the air conditioning system of the target vehicle is controlled based on the air conditioning system's recirculation damper opening information I, so that the ratio of the area of ​​the target vehicle's internal recirculation vent 20 to the total area of ​​the recirculation vents is equal to the air conditioning system's recirculation damper opening information I.

[0131] For example, when the air circulation damper opening information I of the air conditioning system is 0.3, the area of ​​the inner circulation vent 20 is 30% of the total area of ​​the circulation vents, and the area of ​​the outer circulation vent 30 is 70% of the total area of ​​the circulation vents.

[0132] In this embodiment of the application, please refer to Figure 7 The ambient humidity information D1 is obtained using the following methods:

[0133] S701. Obtain the current network transmission parameters of the target vehicle.

[0134] In some embodiments, the network transmission parameter indicates the network speed of the current target vehicle. The larger the network transmission parameter, the faster the network speed of the current target vehicle, and vice versa.

[0135] For example, the network transmission parameters of the target vehicle traveling in the tunnel are less than the network transmission parameters of the target vehicle traveling on the ground road.

[0136] Specifically, network transmission parameters include, but are not limited to, rate, bandwidth, throughput, latency, and latency-bandwidth product.

[0137] S702. If the current network transmission parameters meet the preset network transmission conditions, send an environmental humidity information acquisition request to the target server.

[0138] S703. Receive the external ambient humidity information D1 from the target server based on the ambient humidity information acquisition request.

[0139] For example, the ambient humidity information D1 outside the vehicle can be obtained by querying the weather forecast system through the vehicle's infotainment system.

[0140] In this embodiment of the application, please refer to Figure 8 The control methods for vehicle air conditioning systems also include:

[0141] S801. If the current network transmission parameters do not meet the preset network transmission conditions, acquire the external ambient temperature information T3. This improves the accuracy of acquiring the external ambient humidity information D1.

[0142] S802. Determine the vehicle exterior saturated humidity information corresponding to the vehicle exterior ambient temperature information T3, and define the vehicle exterior saturated humidity information as the vehicle exterior ambient humidity information D1.

[0143] In some embodiments, based on a fourth preset correspondence, the vehicle exterior saturated humidity information corresponding to the vehicle exterior temperature information T3 is determined; for example, the vehicle exterior humidity information D1 can be the weight of moisture contained in a unit weight of dry air in the vehicle exterior environment. Specifically, the fourth preset correspondence can be a table of humid air temperature and humidity properties.

[0144] In this embodiment of the application, the steps of obtaining the current number of drivers and passengers N, external environmental humidity information D1, in-vehicle temperature information and air conditioning system operating parameter information of the target vehicle are triggered based on a time period.

[0145] It should be noted that the time period in this embodiment is determined according to the actual situation, and this application does not limit the time period. For example, the time period can be 60 seconds.

[0146] Please see Figure 10 The following describes the control method for the vehicle air conditioning system provided in this application embodiment, in conjunction with specific application scenarios:

[0147] S1. Obtain the object category of each current driver and passenger in the target vehicle, external ambient humidity information D1, inner surface temperature of the window glass T1, internal ambient temperature information, current vehicle speed information V, air conditioning blower gear information, and air conditioning blower air outlet mode information.

[0148] S2. Based on the inner surface temperature T1 of the car window glass, perform dew point temperature analysis to obtain the current dew point temperature information T2.

[0149] S3. Determine the in-vehicle saturation humidity information D2 based on the current dew point temperature information T2.

[0150] S4. Calculate the dehumidification capacity of the air conditioning system based on the external humidity information D1 and the internal saturated humidity information D2 to obtain the first dehumidification data D3.

[0151] S5. Based on the in-vehicle ambient temperature information and the object category of each current driver and passenger, determine the humidification amount of each current driver and passenger under the current environmental conditions.

[0152] S6. Sum the humidity increase of each current driver and passenger object to obtain the driver and passenger object humidity load data g1.

[0153] S7. Based on the current vehicle speed information V, analyze the external air pressure at the external air intake of the target vehicle to obtain the external static pressure data P2.

[0154] S8. Based on the driver and passenger wet load data g1 and the first dehumidification data D3, perform fresh air demand analysis and target vehicle air outlet analysis respectively to obtain air demand data Q1 and vehicle air outlet data Q2 respectively.

[0155] S9. Analyze the static pressure inside the vehicle based on the vehicle's air outlet data Q2 to obtain the static pressure data inside the vehicle P1.

[0156] S10. Based on the air conditioning unit blower speed information, air conditioning unit blower air outlet mode information, air volume demand data Q1, vehicle interior static pressure data P1 and external static pressure data P2, analyze the air conditioning system's recirculation damper opening to obtain recirculation damper opening information.

[0157] S11. Control the operation of the air conditioning system of the target vehicle based on the information of the opening degree of the circulating damper.

[0158] The vehicle air conditioning system control method in this application embodiment is particularly suitable for winter fog-free heating of the target vehicle. It eliminates the need for external and internal humidity sensors, and can reduce the overall vehicle heating load without fogging, thereby achieving energy-saving fog-free heating of the target vehicle.

[0159] In other embodiments, after controlling the air conditioning system of the target vehicle to operate based on the target control parameters in a single time period, in-vehicle humidity information can be collected by an in-vehicle humidity sensor, and then the air conditioning system's recirculation damper opening information I can be fine-tuned based on the in-vehicle humidity information; specifically, the air conditioning system's recirculation damper opening information I can be fine-tuned based on an automatic control module.

[0160] The automatic control module can be a linear controller.

[0161] Specifically, when the in-vehicle humidity information collected by the in-vehicle humidity sensor is greater than a first preset value, the automatic control module controls and fine-tunes the opening information I of the air conditioning system's recirculation damper to reduce the ratio of the area of ​​the internal recirculation vent 20 to the total area of ​​the recirculation vents in the target vehicle; when the in-vehicle humidity information collected by the in-vehicle humidity sensor is less than a second preset value, the automatic control module controls and fine-tunes the opening information I of the air conditioning system's recirculation damper to increase the ratio of the area of ​​the internal recirculation vent 20 to the total area of ​​the recirculation vents in the target vehicle.

[0162] In some embodiments, a first preset value and a second preset value can be determined based on the in-vehicle saturated humidity information D2; the first preset value is proportional to the in-vehicle saturated humidity information D2, and the second preset value is proportional to the in-vehicle saturated humidity information D2; specifically, the first preset value can be 1.2*D2, and the second preset value can be 0.8*D2.

[0163] This application also provides a control device for a vehicle air conditioning system; please refer to [link / reference]. Figure 11 The control device for a vehicle air conditioning system provided in this application includes:

[0164] Acquisition module 1110: used to acquire the current number of drivers and passengers N of the target vehicle, the external humidity information D1, the internal temperature information and the air conditioning system operating parameters information.

[0165] First analysis module 1120: used to analyze the dehumidification capacity of the air conditioning system based on the external ambient humidity information D1 and the internal temperature information, and obtain the first dehumidification data D3. The first dehumidification data D3 is used to characterize the dehumidification efficiency of the air conditioning system of the target vehicle under the current environmental conditions.

[0166] The second analysis module 1130 is used to perform fresh air demand analysis based on the first dehumidification data D3 and the current number of drivers and passengers N, and obtain the air demand data Q1. The air demand data Q1 is used to indicate the fresh air demand of the target vehicle under the current environmental conditions.

[0167] The third analysis module 1140 is used to analyze the control parameters of the air conditioning system based on the air volume demand data Q1, the first dehumidification data D3, the current number of drivers and passengers N, and the air conditioning system operating parameter information, so as to obtain the target control parameters of the air conditioning system.

[0168] Control module 1150: Used to control the operation of the air conditioning system of the target vehicle based on the target control parameters.

[0169] In this embodiment of the application, the first analysis module 1120 includes:

[0170] The first analysis unit is used to perform dew point temperature analysis based on the vehicle interior temperature information to obtain the current dew point temperature information T2. ​​The current dew point temperature information T2 is used to indicate the temperature at which the air inside the target vehicle is cooled to saturation under the condition that the humidity content remains unchanged.

[0171] The second analysis unit is used to determine the in-vehicle saturated humidity information D2 of the target vehicle based on the current dew point temperature information T2. ​​The in-vehicle saturated humidity information D2 is used to indicate the maximum moisture content of the target vehicle under the current environmental conditions.

[0172] The third analysis unit is used to calculate the dehumidification capacity of the air conditioning system based on the external humidity information D1 and the internal saturated humidity information D2, and obtain the first dehumidification data D3.

[0173] In this embodiment of the application, the second analysis module 1130 includes:

[0174] The fourth analysis unit is used to analyze the humidification of the driver and passenger objects based on the current number of driver and passenger objects N, and obtain the driver and passenger object humidification load data g1. The driver and passenger object humidification load data g1 is used to indicate the total amount of humidification of the in-vehicle environment of the target vehicle by the current driver and passenger objects.

[0175] The fifth analysis unit is used to perform fresh air demand analysis based on the driver and passenger wet load data g1 and the first dehumidification data D3, and obtain the air demand data Q1.

[0176] In this embodiment of the application, the third analysis module 1140 includes:

[0177] The sixth analysis unit is used to analyze the air volume of the target vehicle based on the first dehumidification data D3 and the current number of drivers and passengers N, and obtain the vehicle air volume data Q2. The vehicle air volume data Q2 is used to indicate the total air volume of the target vehicle under the current environmental conditions.

[0178] The seventh analysis unit is used to analyze the static pressure inside the vehicle based on the vehicle's air outlet data Q2, and obtain the static pressure data P1 inside the vehicle. The static pressure data P1 inside the vehicle is used to indicate the air pressure inside the target vehicle.

[0179] The eighth analysis unit is used to analyze the opening degree of the air conditioning system's recirculation damper based on the air conditioning system's operating parameters, air volume demand data Q1, and vehicle static pressure data P1, to obtain recirculation damper opening information. The recirculation damper opening information is used to indicate the ratio of the area of ​​the internal recirculation air vent 20 to the total area of ​​the recirculation air vents in the target vehicle.

[0180] In this embodiment of the application, the sixth analysis unit includes:

[0181] The first analysis subunit is used to analyze the air volume of the target vehicle based on the driver and passenger wet load data g1 and the first dehumidification data D3, and obtain the vehicle air volume data Q2. The vehicle air volume data Q2 is directly proportional to the driver and passenger wet load data g1, and the vehicle air volume data Q2 is inversely proportional to the first dehumidification data D3.

[0182] In this embodiment of the application, the fourth analysis unit includes:

[0183] Get sub-unit: Used to get the object category of each current driver and passenger object corresponding to the current number of driver and passenger objects N.

[0184] The second analysis subunit is used to determine the humidification amount of each current driver and passenger under the current environmental conditions, based on the vehicle interior temperature information and the object category of each current driver and passenger.

[0185] The third analysis subunit is used to sum and calculate the moisture load data g1 of each current driver and passenger object based on their respective moisture increase.

[0186] In this embodiment of the application, the control device for the vehicle air conditioning system further includes:

[0187] The second acquisition module is used to acquire the current network transmission parameters of the target vehicle.

[0188] Sending module: Used to send an environmental humidity information acquisition request to the target server when the current network transmission parameters meet the preset network transmission conditions.

[0189] Receiving module: Used to receive the external ambient humidity information D1 from the target server based on the ambient humidity information acquisition request.

[0190] In this embodiment of the application, the control device for the vehicle air conditioning system further includes:

[0191] The third acquisition module is used to acquire the external ambient temperature information T3 when the current network transmission parameters do not meet the preset network transmission conditions.

[0192] The fourth analysis module is used to determine the external saturated humidity information corresponding to the external ambient temperature information T3, and to define the external saturated humidity information as the external ambient humidity information D1.

[0193] In this embodiment of the application, the control device for the vehicle air conditioning system further includes:

[0194] The fourth acquisition module is used to acquire the current vehicle speed information V of the target vehicle before acquiring the current number of drivers and passengers N, the external ambient humidity information D1, the in-vehicle temperature information, and the air conditioning system operating parameters information of the target vehicle.

[0195] The fifth analysis module is used to analyze the external air pressure of the target vehicle's external air intake based on the current vehicle speed information V, and obtain the external static pressure data P2. The external static pressure data P2 is used to indicate the external air pressure of the target vehicle's external air intake.

[0196] The apparatus and method embodiments described above are based on the same application concept.

[0197] Please refer to Figure 12 This application provides an electronic device for implementing the control method of the vehicle air conditioning system described above. The electronic device includes a processor and a memory. The memory stores at least one instruction or at least one program segment. The at least one instruction or the at least one program segment is loaded and executed by the processor to implement the control method of the vehicle air conditioning system provided in the above method embodiment.

[0198] Memory can be used to store software programs and modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory. Memory can primarily include a program storage area and a data storage area. The program storage area can store the operating system, application programs required for the functions, etc.; the data storage area can store data created based on the use of the device, etc. Furthermore, memory can include high-speed random access memory, and can also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory can also include a memory controller to provide the processor with access to the memory.

[0199] The methods and embodiments provided in this application can be executed in mobile terminals, computer terminals, servers, or similar computing devices. That is, the aforementioned electronic devices may include mobile terminals, computer terminals, servers, or similar computing devices. The server may be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The terminal may be a smartphone, tablet computer, laptop computer, desktop computer, smart speaker, smartwatch, etc., but is not limited to these.

[0200] Figure 12 This is a hardware structure block diagram of an electronic device for implementing the above-described vehicle air conditioning system control method, provided in an embodiment of this application. For example... Figure 12As shown, the electronic device 1200 can vary significantly due to differences in configuration or performance. It may include one or more central processing units (CPUs) 1210 (CPUs 1210 may include, but are not limited to, microprocessors (MCUs) or programmable logic devices (FPGAs), a memory 1230 for storing data, and one or more storage media 1220 (e.g., one or more mass storage devices) for storing application programs 1223 or data 1222. The memory 1230 and storage media 1220 may be temporary or persistent storage. The program stored in the storage media 1220 may include one or more modules, each module including a series of instruction operations on the electronic device. Furthermore, the CPU 1210 may be configured to communicate with the storage media 1220 and execute the series of instruction operations in the storage media 1220 on the electronic device 1200. Electronic device 1200 may also include one or more power supplies 1260, one or more wired or wireless network interfaces 1250, one or more input / output interfaces 1240, and / or one or more operating systems 1221, such as Windows Server. TM Mac OS X TM Unix TM Linux TM FreeBSD TM etc.

[0201] The processor 1210 can be an integrated circuit chip with signal processing capabilities, such as a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0202] The input / output interface 1240 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the electronic device 1200. In one example, the input / output interface 1240 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the input / output interface 1240 may be a radio frequency (RF) module for wireless communication with the Internet.

[0203] The operating system 1221 may include system programs for handling various basic system services and performing hardware-related tasks, such as the framework layer, core library layer, and driver layer, for implementing various basic business functions and handling hardware-based tasks.

[0204] Those skilled in the art will understand that Figure 12 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device described above. For example, the electronic device 1200 may also include... Figure 12 The more or fewer components shown, or having the same Figure 12 The different configurations shown.

[0205] Embodiments of this application also provide a computer-readable storage medium, which can be disposed in an electronic device to store at least one instruction or at least one program related to implementing a control method for a vehicle air conditioning system in the method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement the control method for the vehicle air conditioning system provided in the above method embodiment.

[0206] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0207] Embodiments of this application also provide a computer program product or computer program that includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various optional implementations described above.

[0208] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0209] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0210] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0211] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control method for a vehicle air conditioning system, characterized in that, include: Obtain the current number of drivers and passengers in the target vehicle, external humidity information, in-vehicle temperature information, and air conditioning system operating parameters; Based on the external humidity information and the internal temperature information, the dehumidification capacity of the air conditioning system is analyzed to obtain first dehumidification data. The first dehumidification data is used to characterize the dehumidification efficiency of the air conditioning system of the target vehicle under the current environmental conditions. Obtain the object category of each current driver-passenger object corresponding to the current number of driver-passenger objects; Based on the in-vehicle temperature information and the object category of each current driver and passenger, determine the humidification amount of each current driver and passenger under the current environmental conditions; The humidity load data of the driver and passenger is obtained by summing the humidity increase of each current driver and passenger. The humidity load data of the driver and passenger is used to indicate the total amount of humidity increase of the in-vehicle environment of the target vehicle by the current driver and passenger. Based on the moisture load data of the driver and passengers and the first dehumidification data, the fresh air demand analysis is performed to obtain the air demand data, which is used to indicate the fresh air demand of the target vehicle under the current environmental conditions. Based on the air volume demand data, the first dehumidification data, the current number of drivers and passengers, and the air conditioning system operating parameter information, the air conditioning system control parameters are analyzed to obtain the target control parameters of the air conditioning system. The target control parameters of the air conditioning system include the air circulation damper opening information of the air conditioning system. Based on the first dehumidification data and the current number of drivers and passengers, the air volume of the target vehicle is analyzed to obtain the vehicle air volume data. The vehicle air volume data is used to indicate the total air volume of the target vehicle under the current environmental conditions. The vehicle interior static pressure is analyzed based on the vehicle's air outlet data to obtain vehicle interior static pressure data, which is used to indicate the air pressure inside the target vehicle. Based on the air conditioning system operating parameter information, the air volume demand data, and the vehicle interior static pressure data, the air conditioning system's recirculation damper opening is analyzed to obtain the recirculation damper opening information. The recirculation damper opening information is used to indicate the ratio of the internal recirculation air vent area to the total recirculation air vent area of ​​the target vehicle. The air conditioning system of the target vehicle is controlled based on the target control parameters.

2. The control method for a vehicle air conditioning system according to claim 1, characterized in that, The air conditioning system operating parameter information includes external static pressure data. Before acquiring the current number of passengers in the target vehicle, external ambient humidity information, in-vehicle temperature information, and air conditioning system operating parameter information, the method further includes: Obtain the current speed information of the target vehicle; Based on the current vehicle speed information, the external air pressure at the external air intake of the target vehicle is analyzed to obtain the external static pressure data, which is used to indicate the external air pressure at the external air intake of the target vehicle.

3. The control method for a vehicle air conditioning system according to claim 1, characterized in that, The analysis of the dehumidification capacity of the air conditioning system based on the external humidity information and the internal temperature information yields the first dehumidification data, including: Based on the in-vehicle temperature information, dew point temperature analysis is performed to obtain the current dew point temperature information. The current dew point temperature information is used to indicate the temperature at which the air inside the target vehicle is cooled to saturation under the condition that the humidity content remains unchanged. The in-vehicle saturated humidity information of the target vehicle is determined based on the current dew point temperature information, and the in-vehicle saturated humidity information is used to indicate the maximum moisture content of the target vehicle under the current environmental conditions. The dehumidification capacity of the air conditioning system is calculated based on the external humidity information and the internal humidity information to obtain the first dehumidification data.

4. The control method for a vehicle air conditioning system according to claim 1, characterized in that, The basis of the first The target vehicle's airflow is analyzed using the wet data and the current number of drivers and passengers to obtain vehicle airflow data, including: Based on the driver and passenger moisture load data and the first dehumidification data, the target vehicle airflow is analyzed to obtain the vehicle airflow data. The vehicle airflow data is directly proportional to the driver and passenger moisture load data and inversely proportional to the first dehumidification data.

5. The control method for a vehicle air conditioning system according to any one of claims 1 to 4, characterized in that, The ambient humidity information outside the vehicle is obtained using the following methods: Obtain the current network transmission parameters of the target vehicle; If the current network transmission parameters meet the preset network transmission conditions, a request to obtain environmental humidity information is sent to the target server. Receive the external humidity information from the target server based on the environmental humidity information acquisition request.

6. The control method for a vehicle air conditioning system according to claim 5, characterized in that, The method further includes: If the current network transmission parameters do not meet the preset network transmission conditions, obtain the vehicle's external ambient temperature information; Determine the vehicle exterior saturated humidity information corresponding to the vehicle exterior ambient temperature information, and define the vehicle exterior saturated humidity information as the vehicle exterior ambient humidity information.

7. A control device for a vehicle air conditioning system, characterized in that, include: The control method for the vehicle air conditioning system according to any one of claims 1 to 6, and Acquisition module: used to acquire the current number of drivers and passengers in the target vehicle, external humidity information, in-vehicle temperature information, and air conditioning system operating parameter information; First analysis module: used to analyze the dehumidification capacity of the air conditioning system based on the external humidity information and the internal temperature information, and obtain first dehumidification data. The first dehumidification data is used to characterize the dehumidification efficiency of the air conditioning system of the target vehicle under the current environmental conditions. The second analysis module is used to perform fresh air demand analysis based on the first dehumidification data and the current number of drivers and passengers to obtain air demand data, which is used to indicate the fresh air demand of the target vehicle under the current environmental conditions. The third analysis module is used to analyze the air conditioning system control parameters based on the air volume demand data, the first dehumidification data, the current number of drivers and passengers, and the air conditioning system operating parameter information, so as to obtain the target control parameters of the air conditioning system. Control module: Used to control the operation of the air conditioning system of the target vehicle based on the target control parameters.

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