Thermal load detection method and device, electronic equipment, medium, product and vehicle

Abstract

The invention relates to a thermal load detection method and device, electronic equipment, a medium, a product and a vehicle, and the method comprises the steps: determining a target thermal load corresponding to a target cabin of the vehicle based on a target humid enthalpy model and a target parameter of the vehicle; the method can accurately evaluate the thermal load of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle detection technology, and in particular to a heat load detection method, device, electronic equipment, medium, product and vehicle. Background Art

[0002] The passenger compartment heat load refers to the total load generated by the heat and humidity in the passenger compartment when the vehicle is running, as well as the heat and humidity generated by human metabolism, providing technical guidance for subsequent air-conditioning control or vehicle energy management.

[0003] However, related technologies generally perform approximate calculations from a theoretical perspective and are unable to accurately assess the thermal load of the passenger compartment. Summary of the Invention

[0004] Embodiments of the present application provide a thermal load detection method, device, electronic device, computer-readable storage medium, computer program product, and vehicle, which are intended to accurately assess the thermal load of the passenger compartment to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of the present application, a heat load detection method is provided, comprising:

[0006] A target heat load corresponding to a target cabin of the vehicle is determined based on a target wet enthalpy model and target parameters of the vehicle.

[0007] Optionally, determining a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle includes:

[0008] determining a target enthalpy value parameter based on the target wet enthalpy model;

[0009] A target heat load corresponding to a target cabin of the vehicle is determined based on the enthalpy parameter and the target parameter of the vehicle.

[0010] Optionally, the target parameter includes a ventilation volume parameter corresponding to the target cabin.

[0011] Optionally, the ventilation volume parameter includes a ventilation volume parameter generated by at least one ventilation pathway in the vehicle.

[0012] Optionally, the target heat load includes a first heat load, and determining the target heat load corresponding to the target cabin of the vehicle based on the enthalpy parameter and the target parameter of the vehicle includes:

[0013] Based on a first correspondence between a first heat load and an enthalpy parameter and a ventilation volume parameter of the vehicle in a heat load model, and the target enthalpy parameter, a first heat load of the target cabin is determined.

[0014] Optionally, the first heat load includes a sub-heat load corresponding to a ventilation volume parameter generated by the at least one in-vehicle ventilation pathway.

[0015] Optionally, the in-vehicle ventilation pathway includes: an active vehicle ventilation pathway and / or a passive vehicle ventilation pathway.

[0016] Optionally, when the in-vehicle ventilation path includes an active vehicle ventilation path and a passive vehicle ventilation path, the first heat load is the sum of a first sub-heat load under the active vehicle ventilation path and a second sub-heat load under the passive vehicle ventilation path.

[0017] Optionally, the step of obtaining the sub-heat load corresponding to the vehicle interior ventilation pathway includes:

[0018] Determining the air enthalpy value corresponding to the target cabin based on the environmental parameters corresponding to the target cabin using a target wet enthalpy model;

[0019] The sub-heat load is obtained according to the air enthalpy value and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0020] Optionally, the air enthalpy value includes a first air enthalpy value outside the target cabin and a second air enthalpy value inside the target cabin.

[0021] Optionally, the step of obtaining the first air enthalpy value includes:

[0022] The first air enthalpy value is determined according to the extravehicular environmental parameters among the environmental parameters through a target wet enthalpy model.

[0023] Optionally, the external environmental parameters include a first temperature and a first humidity content outside the target cabin.

[0024] Optionally, the step of determining the first moisture content comprises:

[0025] The first moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a first water vapor saturation pressure outside the target cabin, wherein the first water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0026] Optionally, the step of obtaining the second air enthalpy value includes:

[0027] The second air enthalpy value is determined according to the cabin environmental parameters among the environmental parameters through a target wet enthalpy model.

[0028] Optionally, the cabin environmental parameters include a second temperature and a second humidity content in the target cabin.

[0029] Optionally, the step of obtaining the second moisture content includes:

[0030] The second moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a second water vapor saturation pressure outside the target cabin, wherein the second water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0031] Optionally, obtaining the sub-heat load according to the air enthalpy value and the ventilation volume parameter corresponding to the in-vehicle ventilation path includes:

[0032] The sub-heat load is obtained according to the first air enthalpy value, the second air enthalpy value, and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0033] Optionally, the target heat load further includes: a second heat load introduced into the target cabin through a vehicle enclosure.

[0034] Optionally, the step of obtaining the second heat load includes:

[0035] The second heat load is obtained through a heat load model according to a heat transfer coefficient of an inner surface of the target cabin, a heat transfer area corresponding to the vehicle enclosure structure, and a thickness corresponding to the vehicle enclosure structure.

[0036] Optionally, the target heat load further includes: a third heat load introduced into the target cabin through glass of the vehicle.

[0037] Optionally, the step of obtaining the third heat load includes:

[0038] The third heat load is obtained by using a heat load model according to the radiation transmittance coefficient of the glass and the total area of ​​the glass.

[0039] Optionally, the target heat load further includes: a fourth heat load introduced into the target cabin through a power source of the vehicle.

[0040] Optionally, the step of obtaining the fourth heat load includes:

[0041] The fourth heat load is obtained through a heat load model according to the temperature change information of the target cabin and the heat transfer area of ​​the power source.

[0042] Optionally, the target heat load further includes: a fifth heat load introduced by an occupant of the target cabin.

[0043] Optionally, the step of obtaining the fifth heat load includes:

[0044] The fifth heat load is obtained by using a heat load model according to the number of occupants in the target cabin and the heat generation corresponding to the occupants.

[0045] Optionally, the target heat load also includes: a sixth heat load introduced by electrical equipment in the vehicle.

[0046] Optionally, the step of obtaining the sixth heat load includes:

[0047] The sixth heat load is obtained through a heat load model according to the amount of heat emitted by each of the electrical devices during operation.

[0048] Optionally, the method further includes:

[0049] Validation of the heat load model.

[0050] Optionally, verifying the heat load model includes:

[0051] Inputting actual operating parameters of the vehicle into the thermal load model to obtain a predicted thermal load output by the thermal load model;

[0052] Obtaining a predicted temperature corresponding to the predicted heat load according to a mapping relationship between the temperature of the target cabin and the heat load;

[0053] The heat load model is verified based on the predicted temperature and the actual temperature of the target cabin.

[0054] Optionally, the verifying the heat load model according to the predicted temperature and the actual temperature of the target cabin includes:

[0055] When the temperature difference between the predicted temperature and the actual temperature is less than a preset difference threshold, it is determined that the thermal load model verification has passed.

[0056] According to a second aspect of the present application, a heat load detection device is provided, comprising:

[0057] The determination module is configured to determine a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle.

[0058] In a third aspect, this embodiment further provides an electronic device, comprising a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the above method.

[0059] In a fourth aspect, this embodiment further provides a computer-readable storage medium, which includes a computer program. When the computer program is run on an electronic device, the computer program is used to enable the electronic device to execute the steps of the above method.

[0060] In a fifth aspect, this embodiment also provides a computer program product, including a computer program, which is stored in a computer-readable storage medium; when a processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, so that the electronic device performs the steps of the above method.

[0061] In a sixth aspect, this embodiment further provides a vehicle, wherein the vehicle is provided with at least one of a heat load detection device, an electronic device, a computer-readable storage medium, and a computer program product.

[0062] To sum up, the embodiment of the present application, through the above-mentioned technical solution, utilizes the target wet enthalpy model and the target parameters of the vehicle to determine the target heat load corresponding to the target cabin of the vehicle. Taking into account that the wet enthalpy model can comprehensively consider parameters such as air temperature and humidity, the present application can accurately describe the heat load of the target cabin through the wet enthalpy model and the target parameters of the vehicle, effectively improving the assessment accuracy of the heat load of the target cabin and providing data support for subsequent vehicle performance optimization.

[0063] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0065] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0066] Figure 1 This is the first schematic diagram of the related technology provided by this application;

[0067] Figure 2 This is the second schematic diagram of the related technology provided by this application;

[0068] Figure 3 This is the third schematic diagram of the related technology provided by this application;

[0069] Figure 4 is a first schematic diagram of a heat load detection process provided in an exemplary embodiment provided in this application;

[0070] Figure 5 is a schematic diagram of heat load in a passenger compartment of an automobile provided in an exemplary embodiment provided in this application;

[0071] Figure 6 is a second schematic diagram of a heat load detection process provided in an exemplary embodiment provided in this application;

[0072] Figure 7 is a schematic diagram of components of passenger cabin heat load provided in an exemplary embodiment provided in this application;

[0073] Figure 8 is a schematic diagram of the degree of influence of various parts of the heat load provided in the exemplary embodiment provided in this application;

[0074] Figure 9 is a schematic diagram of building a heat load simulation model provided in an exemplary embodiment provided in this application;

[0075] Figure 10 is a schematic diagram of a heat load detection device provided in an exemplary embodiment of the present application;

[0076] Figure 11 Schematic diagram of the electronic device provided in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0077] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0078] The passenger compartment thermal load refers to the combined load of heat and humidity generated by the passenger compartment during vehicle operation, as well as the heat and humidity generated by human metabolism. Vehicle thermal load is a crucial factor influencing thermal comfort analysis of the passenger compartment. Accurately calculating the vehicle thermal load is the foundation for this analysis and a crucial basis for implementing subsequent balancing strategies for cabin temperature control, battery pack control, and motor temperature control. This directly impacts the rational use of vehicle energy.

[0079] At present, there are several representative technical solutions for heat load calculation:

[0080] (1) Figure 1 As shown, in the related art, a KULI software model of the passenger compartment is established based on basic parameters, and then the air conditioner is simulated based on the air parameters of the air conditioner to establish a load calculation model. The heat load of this method mainly relies on software calculation, the model is not very interpretable, and the model's calculation of human body heat is relatively rough.

[0081] (2) Figure 2As shown, in related technologies, vehicle design operating parameters are determined based on cooling requirements; multiple heat load components corresponding to these parameters are then determined. This method calculates enthalpy values ​​for the entire vehicle based on a table lookup, limiting the model's applicability. The human body heat calculation method is crude, impacting model accuracy. The model also lacks a quantitative analysis of various influencing factors.

[0082] (3) Figure 3 As shown in the previous article, a physical model of the passenger compartment is constructed based on CFD fluid flow calculations. This physical model is then analyzed to accurately determine the passenger compartment cooling heat load. This method is based on simulation calculations and still requires theoretical comparison and verification of its effectiveness.

[0083] As can be seen, existing technologies either rely solely on simulation results or perform approximate calculations from a theoretical perspective, resulting in limited model applicability. They lack an effective combination of theoretical calculations and simulation verification, and most fail to quantitatively analyze influencing factors. Further consideration is needed to determine the effectiveness of these models.

[0084] In order to solve the above problems, the present application proposes a heat load detection method, device, electronic device, computer readable storage medium, computer program product and vehicle, such as Figure 4 As shown in the figure, the purpose is to establish a passenger compartment heat load model based on accurate theoretical calculations, then provide a quantitative analysis of the influence of various factors, and finally verify the one-dimensional thermal simulation model. The verified heat load model is used to predict the passenger compartment temperature and provide technical guidance for subsequent air-conditioning control or vehicle energy management.

[0085] like Figure 5 The theoretical calculation model of the passenger compartment heat load is shown. The calculation principle of the steady-state heat load is based on the thermal interaction between the vehicle body and the external environment through three methods: conduction, convection and radiation.

[0086] like Figure 6 As shown, the total heat load is divided into six main components:

[0087] (1) Heat introduced into the passenger compartment through the vehicle's exterior structure, including the roof panel and the side panels.

[0088] (2) Heat introduced through glass. This includes radiant heat generated by sunlight and conductive heat generated by heat absorbed by the glass. Radiant heat includes direct radiation and scattered radiation.

[0089] (3) Heat introduced by the power source. Pure electric vehicles use batteries instead of engines to power the car, and the heat generated by the battery pack replaces the heat introduced by the engine compartment.

[0090] (4) Heat brought in by the air outside the vehicle.

[0091] (5) Heat emitted by occupants.

[0092] (6) Heat generated by electrical appliances in the vehicle and loads on electrical equipment. Heat dissipated by components in the vehicle and heat dissipated by electrical equipment such as blowers and audio equipment.

[0093] Q T =Q b +Q g +Q ba +Q a +Q p +Q e

[0094] Among them, Q T is the total heat load of the passenger compartment (W); Q b is the heat introduced into the passenger compartment through the vehicle envelope (W); Q ba is the heat introduced through the glass (W); Q a Heat introduced into the passenger compartment for the battery pack (W); Q a is the heat brought into the passenger compartment fresh air system from the outside air (W); Q p The heat dissipated by the people in the car (driver and passengers) (W); Q e The heat dissipated by electrical appliances in the passenger compartment (W).

[0095] On this basis, if Figure 7 As shown, the heat load detection method in this application may at least include:

[0096] S10 , determining a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle.

[0097] In this embodiment, the target cabin may specifically be a passenger cabin of a vehicle.

[0098] It should be noted that, in this embodiment, the target parameters of the vehicle can represent factors that affect the thermal load of the entire vehicle, such as the heat generated by the glass windows, body enclosure structure, battery pack of the power source, body air leakage, fresh air volume, etc., which are not listed one by one here.

[0099] The target wet enthalpy model may specifically be an air enthalpy value calculation model, which is used to calculate the enthalpy values ​​of the air inside and outside the vehicle.

[0100] On this basis, the vehicle can determine the target heat load corresponding to the target cabin of the vehicle based on the target wet enthalpy model and the target parameters of the vehicle.

[0101] It can be seen that compared with the evaluation method of the vehicle cabin thermal load in the prior art, the present application can use the target wet enthalpy model and the target parameters of the vehicle to determine the target thermal load corresponding to the target cabin of the vehicle. Taking into account that the wet enthalpy model can comprehensively consider parameters such as air temperature and humidity, the present application can accurately describe the thermal load of the target cabin through the wet enthalpy model and the target parameters of the vehicle, effectively improving the evaluation accuracy of the target cabin thermal load and providing data support for subsequent vehicle performance optimization.

[0102] In one embodiment, in S10 above, “determining a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle” may include:

[0103] S101, determining a target enthalpy value parameter based on the target wet enthalpy model;

[0104] S102 : Determine a target heat load corresponding to a target cabin of the vehicle based on the enthalpy parameter and the target parameter of the vehicle.

[0105] In this embodiment, the vehicle may determine a target enthalpy value parameter based on a target wet enthalpy model, wherein the target enthalpy value parameter may include a target enthalpy value parameter of the air outside the target cabin, and may also include a target enthalpy value parameter of the air inside the target cabin.

[0106] Furthermore, based on the enthalpy parameter and the target parameters of the vehicle, the target heat load corresponding to the target cabin of the vehicle can be calculated.

[0107] In one embodiment, the target parameter includes a ventilation volume parameter corresponding to the target cabin.

[0108] Specifically, the ventilation volume parameter includes at least one ventilation volume parameter generated by a ventilation pathway in the vehicle.

[0109] The ventilation volume parameter in this embodiment may specifically be the ventilation air volume.

[0110] The in-vehicle ventilation pathway may include: an active vehicle ventilation pathway and / or a passive vehicle ventilation pathway.

[0111] In this embodiment, the active ventilation path of the vehicle may specifically be a ventilation path based on the vehicle's fresh air system, and the passive ventilation path of the vehicle may specifically be an air leakage path of the vehicle (such as due to a door sealing strip).

[0112] On this basis, the ventilation volume parameter of the vehicle's active ventilation path can be the fresh air volume of the vehicle body, and the ventilation volume parameter of the vehicle's passive ventilation path can be the air leakage volume of the vehicle body.

[0113] In one embodiment, the target heat load includes a first heat load. In S102 above, “determining the target heat load corresponding to the target cabin of the vehicle based on the enthalpy parameter and the target parameter of the vehicle” may include:

[0114] S1021: Determine a first heat load of the target cabin based on a first correspondence between a first heat load and an enthalpy parameter and a ventilation volume parameter of the vehicle in a heat load model, and the target enthalpy parameter.

[0115] In this embodiment, the thermal load model can characterize the first correspondence between the first thermal load and the enthalpy parameter and the ventilation volume parameter of the vehicle, so that after the target enthalpy parameter is determined based on the target wet enthalpy model, the thermal load model can be used to calculate the first thermal load of the target cabin according to the target enthalpy parameter.

[0116] It can be understood that the first heat load Q in this embodiment a It is the heat brought into the target cabin by the air outside the vehicle.

[0117] In one embodiment, the first heat load includes a sub-heat load corresponding to a ventilation volume parameter generated by the at least one in-vehicle ventilation pathway.

[0118] It can be understood that, in combination with the above description, in this embodiment, there may be ventilation pathways in the vehicle, and the ventilation volume parameter generated by each ventilation pathway has a corresponding sub-heat load.

[0119] Specifically, when the vehicle ventilation path includes an active vehicle ventilation path and a passive vehicle ventilation path, the first heat load is the sum of a first sub-heat load under the active vehicle ventilation path and a second sub-heat load under the passive vehicle ventilation path.

[0120] In this embodiment, the heat load introduced into the target cabin by the active ventilation path of the vehicle is the first sub-heat load Q a1 The heat load introduced into the target cabin by the passive ventilation pathway of the vehicle is the second sub-heat load Q a2 , so that the first heat load Q a =Q a1 +Q a2 .

[0121] In one embodiment, the step of obtaining the sub-heat load corresponding to the vehicle interior ventilation pathway includes:

[0122] Determining the air enthalpy value corresponding to the target cabin based on the environmental parameters corresponding to the target cabin using a target wet enthalpy model;

[0123] The sub-heat load is obtained according to the air enthalpy value and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0124] The target wet enthalpy model in this embodiment represents the calculation method of the air enthalpy values ​​inside and outside the vehicle:

[0125] p = 0.07394T 3 -0.02T 2 +62.49T+581.9

[0126]

[0127] Among them, h is the enthalpy of moist air (unit: kJ / kg a), p is the saturation pressure of water vapor (unit: kPa), T is the temperature (unit: °C), d is the moisture content of air (unit: g / kg a), o is the humidity (%), and B is the atmospheric pressure (which can be 101325Pa).

[0128] In the above way, the air enthalpy can be calculated.

[0129] In a specific embodiment, the air enthalpy value includes a first air enthalpy value outside the target cabin and a second air enthalpy value inside the target cabin.

[0130] In this embodiment, the air enthalpy value may include the air enthalpy value h0 (first air enthalpy value) outside the passenger compartment and the air enthalpy value h i (Second air enthalpy value).

[0131] Then, the heat load can be obtained based on the above-mentioned air enthalpy value and the ventilation volume parameter corresponding to the ventilation path in the vehicle.

[0132] Specifically, for example, the heat load introduced into the target cabin by the vehicle's active ventilation pathway is the first sub-heat load Q a1 =0.28V1ρ(h0-h i ), where V1 is the fresh air volume of the vehicle body. According to human health standards, the fresh air demand per person per hour is 20m 3 Above, the value here can be 20m 3 / (person·h).

[0133] The heat load introduced into the target cabin by the passive ventilation pathway of the vehicle is the second sub-heat load Q a2 =0.28V 12 ρ(h0-h i ), where V2 is the air leakage of the vehicle body, which can be taken as 11.167m 3 / h.

[0134] On this basis, the first heat load introduced by fresh air is:

[0135] Q a =Q a1 +Q a2=0.28(V1+V2)ρ(h0-h i )

[0136] Where ρ is the air density, and the dry air density at 25°C is 1.29 kg / m 3 .

[0137] In one embodiment, the step of obtaining the first air enthalpy value includes:

[0138] The first air enthalpy value is determined according to the extravehicular environmental parameters among the environmental parameters through a target wet enthalpy model.

[0139] The external environment parameters include a first temperature and a first humidity outside the target cabin.

[0140] The above-mentioned step of determining the first moisture content may include:

[0141] The first moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a first water vapor saturation pressure outside the target cabin, wherein the first water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0142] Specifically, in combination with the above description, the first air enthalpy value

[0143]

[0144] p1=0.07394T1 3 -0.02T1 2 +62.49T1+581.9

[0145] Among them, p1 is the first water vapor saturation pressure (kPa); T1 is the first temperature (℃); d1 is the first moisture content, g / kga; o1 is the first humidity outside the cabin (%); B is the atmospheric pressure (which can be 101325Pa); h0 is the enthalpy value of wet air (i.e., the first air enthalpy value, kJ / kga).

[0146] In one embodiment, the step of obtaining the second air enthalpy value includes:

[0147] The second air enthalpy value is determined according to the cabin environmental parameters among the environmental parameters through a target wet enthalpy model.

[0148] The cabin environment parameters include a second temperature and a second humidity content in the target cabin.

[0149] The step of obtaining the second moisture content may include:

[0150] The second moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a second water vapor saturation pressure outside the target cabin, wherein the second water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0151] Specifically, in combination with the above description, the second air enthalpy value

[0152]

[0153] p2=0.07394T2 3 -0.02T2 2 +62.49T2+581.9

[0154] Among them, p2 is the second water vapor saturation pressure (kPa); T2 is the second temperature (℃); d2 is the second moisture content, g / kga; o2 is the second humidity in the cabin (%); B is the atmospheric pressure (which can be 101325Pa); h1 is the enthalpy value of wet air (i.e., the second air enthalpy value, kJ / kga).

[0155] On this basis, the above-mentioned “obtaining the sub-heat load according to the air enthalpy value and the ventilation volume parameter corresponding to the in-vehicle ventilation path” may include:

[0156] The sub-heat load is obtained according to the first air enthalpy value, the second air enthalpy value, and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0157] Combined with the above description, the heat load introduced into the target cabin by the vehicle's active ventilation path is the first sub-heat load Q a1 =0.28V1ρ(h0-h i ); The heat load introduced into the target cabin by the passive ventilation pathway of the vehicle is the second sub-heat load Q a2 =0.28V 12 ρ(h0-h i ).

[0158] On this basis, the first heat load:

[0159] Q a =Q a1 +Q a2 =0.28(V1+V2)ρ(h0-h i )

[0160] In one embodiment, the target heat load further comprises: a second heat load introduced into the target cabin through a vehicle enclosure.

[0161] Wherein, the step of obtaining the second heat load may include:

[0162] The second heat load is obtained through a heat load model according to the heat transfer coefficient of the inner surface of the target cabin, the heat transfer area corresponding to the vehicle enclosure structure, and the thickness corresponding to the vehicle enclosure structure.

[0163] In this embodiment, the heat load model can be used to calculate the heat introduced into the passenger compartment through the vehicle enclosure (i.e., the second heat load Q in this embodiment). b ) include heat transfer coefficient, heat transfer area, thickness, etc., that is, the second heat load Q is defined in the heat load model. b Calculation method.

[0164]

[0165] Where u is the vehicle speed (m / s), here we take 60km / h, that is, 16.7m / s; The sum of the thermal conductivity and thermal resistance of the ceiling insulation material, unit is W / (m 2 ·K); δ is the cabin thickness (m); λ is the thermal conductivity, unit is W / (m·K); α j is the heat transfer coefficient of the cabin inner surface, which represents the convective heat transfer coefficient between the inner surface of the passenger cabin and the air, and the unit is W / (m 2 K), usually 29; F t is the heat transfer area, in m 2 ; T0 is the external ambient temperature, in °C; γ is the absorption coefficient of solar radiation, which can be taken as 0.9; I is the solar radiation intensity in the normal direction of the enclosure structure, in W / m 2 ;T i is the target temperature of the passenger compartment, in °C.

[0166] In the above manner, the present application can calculate the second heat load introduced into the target cabin through the vehicle enclosure structure.

[0167] In one embodiment, the target heat load further includes: a third heat load introduced into the target cabin through glass of the vehicle.

[0168] The step of obtaining the third heat load may include:

[0169] The third heat load is obtained by using a heat load model according to the radiation transmittance coefficient of the glass and the total area of ​​the glass.

[0170] In this embodiment, the third heat load is:

[0171]

[0172] Among them, F b1 is the total area of ​​the glass, F bis the heat transfer area, and τ is the radiation transmittance coefficient of the car body glass to solar radiation, which can be taken as 0.8, for example.

[0173] In the above manner, the present application can calculate the third heat load introduced into the target cabin through the glass of the vehicle.

[0174] In one embodiment, the target heat load further includes: a fourth heat load introduced into the target cabin via a power source of the vehicle.

[0175] The step of obtaining the fourth heat load may include:

[0176] The fourth heat load is obtained through a heat load model according to the temperature change information of the target cabin and the heat transfer area of ​​the power source.

[0177] In this embodiment, the fourth heat load is:

[0178]

[0179] Among them, (T ba -T i ) is the temperature change information of the target cabin caused by the operation of the power source, T ba is the actual temperature information of the target cabin, F ba is the heat transfer area of ​​the power source.

[0180] Through the above method, the present application can calculate the third heat load introduced into the target cabin through the power source of the vehicle.

[0181] In one embodiment, the target heat load further includes: a fifth heat load introduced by an occupant of the target cabin.

[0182] In this embodiment, the fifth heat load is:

[0183] Q p =0.202(M1+M2(N-1))+W 0.425 H 0.725

[0184] Among them, M1 is the driver's metabolic heat production, which can be taken as 85W / m 2 ; M2 is the heat generated by passenger metabolism, which can be 55W / m 2 ; N is the number of people; W is the weight of the people, which can be taken as the average weight of Chinese men 66.2kg; N is the height of the people, which can be taken as the average height of Chinese men 1.671m.

[0185] Through the above method, the present application can calculate the third heat load introduced by the vehicle occupants.

[0186] In one embodiment, the target heat load further includes: a sixth heat load introduced by electrical equipment in the vehicle.

[0187] The step of obtaining the sixth heat load may include:

[0188] The sixth heat load is obtained through a heat load model according to the amount of heat emitted by each of the electrical devices during operation.

[0189] In this embodiment, electrical devices in the vehicle, such as lighting equipment, emit heat during operation. Different models have different internal electronic equipment with different power levels, and the amount of heat emitted by these devices varies. These include lighting equipment, fan motors, overhead evaporator motors, and playback devices such as the vehicle radio.

[0190] Sixth heat load:

[0191] Q e =Q1+Q2+Q3+Q4

[0192] Among them, Q1 is the heat generated by the lighting equipment; Q2 is the heat generated by the fan motor; Q3 is the heat generated by the overhead evaporator motor; Q4 is the heat generated by the car radio, etc.

[0193] On this basis, Q in this application T =Q b +Q g +Q ba +Q a +Q p +Q e .

[0194] Specifically, for example, considering that the main influencing factors include sunlight radiation, heat introduced by the vehicle body, heat and humidity emitted by the human body, heat introduced by the power source, and heat introduced by the outside air, this patent quantitatively analyzes the contribution of each source of heat load.

[0195]

[0196] Q p =0.202×85+55×(5-1)+66.2 0.425 ×1.671 0.725 ≈531(W)

[0197] Q e =40+30+80+50=200(W)

[0198] Q T =Q b +Q g +Q ba +Q a +Q p +Qe =1111+2682+880+402+531+200=5806(W).

[0199] Combine Figure 8 As shown in the figure, under summer cooling conditions, glass heat load accounts for the largest portion of the vehicle's heat load, exceeding 45%. The body enclosure also contributes a significant portion, approximately 20%. Heat from the power source's battery pack accounts for approximately 15% of the total load. Passengers, the fresh air system, and electrical heat dissipation contribute approximately 20%.

[0200] The greatest factor influencing the vehicle's thermal load is the heat load from the glass. Glass contributes most significantly to the vehicle's thermal load, so it's best to use glass materials with low absorptivity and low transmittance. Furthermore, the glass installation angle can be maximized while taking into account wind resistance, increasing the angle of incidence of solar radiation and thus reducing the heat load introduced into the passenger compartment through the glass.

[0201] In one embodiment, the heat load detection method in the present application may further include:

[0202] S20, verify the heat load model.

[0203] In this embodiment, the passenger compartment can be regarded as a moist air cavity that exchanges heat with the outside world. The temperature, pressure, relative humidity, flow rate and other parameters of the air outlet of the air conditioning system are input to verify the heat load model in the above embodiment.

[0204] Specifically, the above S20 may include:

[0205] Inputting actual operating parameters of the vehicle into the thermal load model to obtain a predicted thermal load output by the thermal load model;

[0206] Obtaining a predicted temperature corresponding to the predicted heat load according to a mapping relationship between the temperature of the target cabin and the heat load;

[0207] The heat load model is verified based on the predicted temperature and the actual temperature of the target cabin.

[0208] It should be noted that, in this embodiment, the mapping relationship between the temperature of the target cabin and the heat load may be specifically:

[0209]

[0210] Take the integration time interval dt = 1s, and,

[0211] Where T is temperature in K; is the temperature change rate of the passenger compartment, in K / s; t is the time, in s; Qi is the temperature of port i (i.e. Figure 9 The input heat load of the interface of the components in the simulation model is in W; n is the total number of ports; m is the mass of the material in kg; c p is the specific heat of air, in J / (kg·K); ρ is the air density, in k / m 3 ; V——total volume of the crew compartment, in m 3 .

[0212] The predicted temperature corresponding to the predicted heat load is obtained through the above mapping relationship, so as to verify the heat load model according to the predicted temperature and the actual temperature of the target cabin.

[0213] Specifically, when the temperature difference between the predicted temperature and the actual temperature is less than a preset difference threshold, it is determined that the thermal load model verification has passed.

[0214] Thus, using the validated heat load model described above in this application, and considering that modern car windows typically have tinted windows, a shading coefficient of 0.5 can reduce the heat load from solar radiation passing through the glass by 50%. This translates to a 12% reduction in the overall passenger compartment heat load. This significant shading effect can partially alleviate the cooling pressure on the vehicle's air conditioning system. Examining the impact of solar radiation intensity on vehicle heat load, using an 800W radiation intensity as an example, the heat load model shows an impact of approximately 35%.

[0215] Therefore, the embodiments of this application include the construction of a theoretical model of passenger compartment thermal load, analysis of the impact of various thermal load components, and model simulation verification analysis. Compared with the existing technology, there are at least the following differences:

[0216] (1) Establish a theoretical calculation model for the thermal load of the passenger compartment and perform modeling and calculation for each component.

[0217] (2) Quantify the influence of each component of the model and clarify the role of each component. The analysis shows that the glass introduction and the vehicle body enclosure are the main sources of heat load.

[0218] (3) Carry out simulation verification of the theoretical model, effectively combining theoretical calculation and simulation verification.

[0219] Compared with the existing technology, this application has at least the following advantages:

[0220] (1) The application scenarios are wider and the calculations are more accurate.

[0221] First, the enthalpy-humidity model is established. Other models only obtain the enthalpy value of the wet air inside and outside the car based on temperature and humidity according to empirical tables. This patent establishes an accurate wet air enthalpy value calculation model to obtain a more accurate heat introduced by the air outside the car. It can be applied to enthalpy-humidity calculations under various environmental conditions, and the model has a wider range of applicable scenarios.

[0222] In addition, other models only consider the number of people to make a simple estimate of human heat dissipation, which is relatively rough; this model takes into account multiple factors such as human height, weight, personnel role, and number of personnel, and the calculation is more accurate and the results are more reasonable.

[0223] (2) Based on the quantitative relationship model between heat load and temperature, the model verification can be better realized.

[0224] Other methods only estimate the heat load of the vehicle's passenger compartment. However, heat load is difficult to measure in real-world vehicle testing, while temperature is easily measured. This model quantifies the relationship between heat load and temperature, accurately describing the temperature changes caused by heat load, making the model more feasible.

[0225] (3) Quantitative analysis of each influencing factor to accurately measure the role of the factor.

[0226] This heat load model takes into account a more comprehensive range of factors, including the vehicle's enclosure, power source, heat transfer from glass, occupants, and electrical appliances. Primarily, this patent provides a quantitative comparative analysis of the impact of each factor, accurately calculating its effects. While other models only provide qualitative analysis, this method provides a quantitative basis based on the specific impact, providing a scientific basis for developing subsequent air conditioning control solutions.

[0227] Accordingly, the embodiment of the present application also provides a heat load detection device, such as Figure 10 As shown, the device may include:

[0228] The determination module 1001 is configured to determine a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle.

[0229] Optionally, the determining module 1001 is further configured to:

[0230] determining a target enthalpy value parameter based on the target wet enthalpy model;

[0231] A target heat load corresponding to a target cabin of the vehicle is determined based on the enthalpy parameter and the target parameter of the vehicle.

[0232] Optionally, the target parameter includes a ventilation volume parameter corresponding to the target cabin.

[0233] Optionally, the ventilation volume parameter includes a ventilation volume parameter generated by at least one ventilation pathway in the vehicle.

[0234] Optionally, the target heat load includes a first heat load, and the determination module 1001 is further configured to:

[0235] Based on a first correspondence between a first heat load and an enthalpy parameter and a ventilation volume parameter of the vehicle in a heat load model, and the target enthalpy parameter, a first heat load of the target cabin is determined.

[0236] Optionally, the first heat load includes a sub-heat load corresponding to a ventilation volume parameter generated by the at least one in-vehicle ventilation pathway.

[0237] Optionally, the in-vehicle ventilation pathway includes: an active vehicle ventilation pathway and / or a passive vehicle ventilation pathway.

[0238] Optionally, when the in-vehicle ventilation path includes an active vehicle ventilation path and a passive vehicle ventilation path, the first heat load is the sum of a first sub-heat load under the active vehicle ventilation path and a second sub-heat load under the passive vehicle ventilation path.

[0239] Optionally, the heat load detection device in the present application is further used to:

[0240] Determining the air enthalpy value corresponding to the target cabin based on the environmental parameters corresponding to the target cabin using a target wet enthalpy model;

[0241] The sub-heat load is obtained according to the air enthalpy value and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0242] Optionally, the air enthalpy value includes a first air enthalpy value outside the target cabin and a second air enthalpy value inside the target cabin.

[0243] Optionally, the heat load detection device in the present application is further used to:

[0244] The first air enthalpy value is determined according to the extravehicular environmental parameters among the environmental parameters through a target wet enthalpy model.

[0245] Optionally, the external environmental parameters include a first temperature and a first humidity content outside the target cabin.

[0246] Optionally, determining the first moisture content includes:

[0247] The first moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a first water vapor saturation pressure outside the target cabin, wherein the first water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0248] Optionally, the heat load detection device in the present application is further used to:

[0249] The second air enthalpy value is determined according to the cabin environmental parameters among the environmental parameters through a target wet enthalpy model.

[0250] Optionally, the cabin environmental parameters include a second temperature and a second humidity content in the target cabin.

[0251] Optionally, obtaining the second moisture content includes:

[0252] The second moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a second water vapor saturation pressure outside the target cabin, wherein the second water vapor saturation pressure is determined based on the temperature outside the target cabin.

[0253] Optionally, the heat load detection device in the present application is further used to:

[0254] The sub-heat load is obtained according to the first air enthalpy value, the second air enthalpy value, and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

[0255] Optionally, the target heat load further includes: a second heat load introduced into the target cabin through a vehicle enclosure.

[0256] Optionally, obtaining the second heat load includes:

[0257] The second heat load is obtained through a heat load model according to a heat transfer coefficient of an inner surface of the target cabin, a heat transfer area corresponding to the vehicle enclosure structure, and a thickness corresponding to the vehicle enclosure structure.

[0258] Optionally, the target heat load further includes: a third heat load introduced into the target cabin through glass of the vehicle.

[0259] Optionally, obtaining the third heat load includes:

[0260] The third heat load is obtained by using a heat load model according to the radiation transmittance coefficient of the glass and the total area of ​​the glass.

[0261] Optionally, the target heat load further includes: a fourth heat load introduced into the target cabin through a power source of the vehicle.

[0262] Optionally, obtaining the fourth heat load includes:

[0263] The fourth heat load is obtained through a heat load model according to the temperature change information of the target cabin and the heat transfer area of ​​the power source.

[0264] Optionally, the target heat load further includes: a fifth heat load introduced by an occupant of the target cabin.

[0265] Optionally, obtaining the fifth heat load includes:

[0266] The fifth heat load is obtained by using a heat load model according to the number of occupants in the target cabin and the heat generation corresponding to the occupants.

[0267] Optionally, the target heat load also includes: a sixth heat load introduced by electrical equipment in the vehicle.

[0268] Optionally, obtaining the sixth heat load includes:

[0269] The sixth heat load is obtained through a heat load model according to the amount of heat emitted by each of the electrical devices during operation.

[0270] Optionally, the heat load detection device in the present application further includes:

[0271] Verification module, used to verify the heat load model.

[0272] Optionally, the verification module is further configured to:

[0273] Inputting actual operating parameters of the vehicle into the thermal load model to obtain a predicted thermal load output by the thermal load model;

[0274] Obtaining a predicted temperature corresponding to the predicted heat load according to a mapping relationship between the temperature of the target cabin and the heat load;

[0275] The heat load model is verified based on the predicted temperature and the actual temperature of the target cabin.

[0276] Optionally, the verification module is further configured to:

[0277] When the temperature difference between the predicted temperature and the actual temperature is less than a preset difference threshold, it is determined that the thermal load model verification has passed.

[0278] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0279] Accordingly, the embodiment of the present application further provides an electronic device, such as Figure 11 As shown, Figure 11Schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 1100 includes a processor 1101 having one or more processing cores, a memory 1102 having one or more computer-readable storage media, and a computer program stored in the memory 1102 and executable on the processor. The processor 1101 is electrically connected to the memory 1102. Those skilled in the art will understand that the vehicle structure shown in the figure does not constitute a limitation of the vehicle, and may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0280] The processor 1101 is the control center of the electronic device 1100. It connects the various parts of the entire electronic device 1100 using various interfaces and lines. By running or loading software programs and / or units stored in the memory 1102 and calling data stored in the memory 1102, it executes various functions of the electronic device 1100 and processes data, thereby monitoring the electronic device 1100 as a whole. The processor 1101 can be a processor (Central Processing Unit, CPU), a graphics processing unit (GPU), a network processor (Network Processor, NP), etc., and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0281] In the embodiment of the present application, the processor 1101 in the electronic device 1100 loads instructions corresponding to one or more application processes into the memory 1102 according to the following steps, and the processor 1101 runs the application stored in the memory 1102 to implement various functions, such as:

[0282] A target heat load corresponding to a target cabin of the vehicle is determined based on a target wet enthalpy model and target parameters of the vehicle.

[0283] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0284] Optional, such as Figure 11 As shown, the electronic device 1100 further includes: a touch screen 1103, a radio frequency circuit 1104, an audio circuit 1105, an input unit 1106, and a power supply 1107. Among them, the processor 1101 is electrically connected to the touch screen 1103, the radio frequency circuit 1104, the audio circuit 1105, the input unit 1106, and the power supply 1107 respectively. Those skilled in the art will understand that Figure 11 The vehicle structure shown in the figure does not constitute a limitation to the vehicle, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0285] The touch display screen 1103 can be used to display a graphical user interface and receive operation instructions generated by the user acting on the graphical user interface. The touch display screen 1103 may include a display panel and a touch panel. Among them, the display panel can be used to display information input by the user or information provided to the user and various graphical user interfaces of the vehicle, which can be composed of graphics, text, icons, videos and any combination thereof. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc. The touch panel can be used to collect user touch operations on or near it (such as operations performed by the user using any suitable object or accessory such as a finger, stylus, etc. on or near the touch panel), and generate corresponding operation instructions, and the operation instructions execute corresponding programs. Optionally, the touch panel may include two parts: a touch display system and a touch controller. Among them, the touch display system detects the user's touch direction, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch display system, converts it into touch point coordinates, and then sends it to the processor 1101, and can receive commands sent by the processor 1101 and execute them. The touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it is transmitted to the processor 1101 to determine the type of touch event. The processor 1101 then provides a corresponding visual output on the display panel according to the type of touch event. In an embodiment of the present application, the touch panel and the display panel can be integrated into the touch display screen 1103 to realize input and output functions. However, in some embodiments, the touch panel and the touch panel can be used as two independent components to realize input and output functions. That is, the touch display screen 1103 can also be used as part of the input unit 1106 to realize the input function.

[0286] The RF circuit 1104 may be used to transmit and receive RF signals, thereby establishing wireless communication with network devices or other vehicles through wireless communication, and transmitting and receiving signals with network devices or other vehicles.

[0287] Audio circuit 1105 can be used to provide an audio interface between the user and the vehicle through a speaker and microphone. Audio circuit 1105 converts received audio data into electrical signals and transmits them to the speaker, which then converts them into sound signals for output. The microphone, on the other hand, converts collected sound signals into electrical signals, which are received by audio circuit 1105 and converted into audio data. This audio data is then output to processor 1101 for processing, then transmitted via RF circuit 1104 to, for example, another vehicle, or to memory 1102 for further processing. Audio circuit 1105 may also include an earphone jack to allow communication between an external headset and the vehicle.

[0288] The input unit 1106 may be configured to receive input digital, character information, or user feature information (such as fingerprint, iris, or facial information), and to generate keyboard, mouse, joystick, optical, or trackball signal input related to user settings and function control.

[0289] Power supply 1107 is used to supply power to various components of electronic device 1100. Optionally, power supply 1107 can be logically connected to processor 1101 via a power management device, thereby enabling the power management device to manage charging, discharging, and power consumption. Power supply 1107 can also include one or more DC or AC power supplies, a recharging device, a power failure detection circuit, a power converter or inverter, a power status indicator, and other arbitrary components.

[0290] although Figure 11 Not shown, the electronic device 1100 may further include a camera, a sensor, a wireless fidelity module, a Bluetooth module, etc., which will not be described in detail here.

[0291] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0292] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be accomplished by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0293] To this end, an embodiment of the present application provides a computer-readable storage medium storing a plurality of computer programs. The computer programs can be loaded by a processor to execute any of the heat load detection methods provided in the embodiments of the present application. The computer programs can execute the following steps of the heat load detection method:

[0294] A target heat load corresponding to a target cabin of the vehicle is determined based on a target wet enthalpy model and target parameters of the vehicle.

[0295] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0296] The computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0297] Since the computer program stored in the computer-readable storage medium can execute any of the heat load detection methods provided in the embodiments of the present application, the beneficial effects that can be achieved by any of the heat load detection methods provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0298] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0299] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0300] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0301] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0302] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0303] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0304] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology for information storage. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media such as modulated communication signals and carrier waves.

[0305] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0306] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0307] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0308] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A heat load detection method, characterized in that: The method is applied to a vehicle, and the method comprises: A target heat load corresponding to a target cabin of the vehicle is determined based on a target wet enthalpy model and target parameters of the vehicle.

2. The heat load detection method according to claim 1, characterized in that: Determining a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle includes: determining a target enthalpy value parameter based on the target wet enthalpy model; A target heat load corresponding to a target cabin of the vehicle is determined based on the enthalpy parameter and the target parameter of the vehicle.

3. The heat load detection method according to claim 2, characterized in that: The target parameter includes a ventilation volume parameter corresponding to the target cabin.

4. The heat load detection method according to claim 3, characterized in that: The ventilation volume parameter includes at least one ventilation volume parameter generated by a ventilation pathway in the vehicle.

5. The heat load detection method according to claim 4, characterized in that: The target heat load includes a first heat load, and determining the target heat load corresponding to the target cabin of the vehicle based on the enthalpy parameter and the target parameter of the vehicle includes: Based on a first correspondence between a first heat load and an enthalpy parameter and a ventilation volume parameter of the vehicle in a heat load model, and the target enthalpy parameter, a first heat load of the target cabin is determined.

6. The heat load detection method according to claim 5, characterized in that: The first heat load includes a sub-heat load corresponding to a ventilation volume parameter generated by the at least one in-vehicle ventilation pathway.

7. The heat load detection method according to claim 5, characterized in that: The in-vehicle ventilation pathway includes: an active vehicle ventilation pathway and / or a passive vehicle ventilation pathway.

8. The heat load detection method according to claim 7, characterized in that: When the vehicle ventilation path includes an active vehicle ventilation path and a passive vehicle ventilation path, the first heat load is the sum of a first sub-heat load under the active vehicle ventilation path and a second sub-heat load under the passive vehicle ventilation path.

9. The heat load detection method according to claim 6, characterized in that: The step of obtaining the sub-heat load corresponding to the vehicle interior ventilation path includes: Determining the air enthalpy value corresponding to the target cabin based on the environmental parameters corresponding to the target cabin using a target wet enthalpy model; The sub-heat load is obtained according to the air enthalpy value and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

10. The heat load detection method according to claim 9, characterized in that: The air enthalpy value includes a first air enthalpy value outside the target cabin and a second air enthalpy value inside the target cabin.

11. The heat load detection method according to claim 10, characterized in that: The step of obtaining the first air enthalpy value comprises: The first air enthalpy value is determined according to the extravehicular environmental parameters among the environmental parameters through a target wet enthalpy model.

12. The heat load detection method according to claim 11, characterized in that: The external cabin environmental parameters include a first temperature and a first humidity content outside the target cabin.

13. The heat load detection method according to claim 12, characterized in that: The step of determining the first moisture content comprises: The first moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a first water vapor saturation pressure outside the target cabin, wherein the first water vapor saturation pressure is determined based on the temperature outside the target cabin.

14. The heat load detection method according to claim 10, characterized in that: The step of obtaining the second air enthalpy value comprises: The second air enthalpy value is determined according to the cabin environmental parameters among the environmental parameters through a target wet enthalpy model.

15. The heat load detection method according to claim 14, characterized in that: The cabin environment parameters include a second temperature and a second humidity content in the target cabin.

16. The heat load detection method according to claim 15, characterized in that: The step of obtaining the second moisture content comprises: The second moisture content is determined by a target wet enthalpy model according to the atmospheric pressure and a second water vapor saturation pressure outside the target cabin, wherein the second water vapor saturation pressure is determined based on the temperature outside the target cabin.

17. The heat load detection method according to claim 10, characterized in that: The obtaining of the sub-heat load according to the air enthalpy value and the ventilation volume parameter corresponding to the in-vehicle ventilation path includes: The sub-heat load is obtained according to the first air enthalpy value, the second air enthalpy value, and a ventilation volume parameter corresponding to the in-vehicle ventilation path.

18. The heat load detection method according to claim 1, characterized in that: The target heat load also includes a second heat load introduced into the target cabin through a vehicle enclosure.

19. The heat load detection method according to claim 18, characterized in that: The step of obtaining the second heat load comprises: The second heat load is obtained through a heat load model according to a heat transfer coefficient of an inner surface of the target cabin, a heat transfer area corresponding to the vehicle enclosure structure, and a thickness corresponding to the vehicle enclosure structure.

20. The heat load detection method according to claim 1, wherein: The target heat load further includes a third heat load introduced into the target cabin through glass of the vehicle.

21. The heat load detection method according to claim 20, characterized in that: The step of obtaining the third heat load comprises: The third heat load is obtained by using a heat load model according to the radiation transmittance coefficient of the glass and the total area of ​​the glass.

22. The heat load detection method according to claim 1, characterized in that: The target heat load further includes a fourth heat load introduced into the target cabin by a power source of the vehicle.

23. The heat load detection method according to claim 22, characterized in that: The step of obtaining the fourth heat load comprises: The fourth heat load is obtained through a heat load model according to the temperature change information of the target cabin and the heat transfer area of ​​the power source.

24. The heat load detection method according to claim 1, characterized in that: The target heat load further includes a fifth heat load introduced by an occupant of the target cabin.

25. The heat load detection method according to claim 24, characterized in that: The step of obtaining the fifth heat load comprises: The fifth heat load is obtained by using a heat load model according to the number of occupants in the target cabin and the heat generation corresponding to the occupants.

26. The heat load detection method according to claim 1, characterized in that: The target heat load also includes a sixth heat load introduced by electrical equipment in the vehicle.

27. The heat load detection method according to claim 26, characterized in that: The step of obtaining the sixth heat load comprises: The sixth heat load is obtained through a heat load model according to the amount of heat emitted by each of the electrical devices during operation.

28. The heat load detection method according to any one of claims 1 to 27, characterized in that: The method further comprises: Validation of the heat load model.

29. The heat load detection method according to claim 28, characterized in that: The verification of the heat load model includes: Inputting actual operating parameters of the vehicle into the thermal load model to obtain a predicted thermal load output by the thermal load model; Obtaining a predicted temperature corresponding to the predicted heat load according to a mapping relationship between the temperature of the target cabin and the heat load; The heat load model is verified based on the predicted temperature and the actual temperature of the target cabin.

30. The heat load detection method according to claim 29, characterized in that: The verifying the heat load model according to the predicted temperature and the actual temperature of the target cabin includes: When the temperature difference between the predicted temperature and the actual temperature is less than a preset difference threshold, it is determined that the thermal load model verification has passed.

31. A heat load detection device, characterized in that: The heat load detection device comprises: The determination module is used to determine a target heat load corresponding to a target cabin of the vehicle based on a target wet enthalpy model and target parameters of the vehicle.

32. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor is caused to perform the method according to any one of claims 1 to 29.

33. A computer-readable storage medium, characterized in that The method comprises a computer program, and when the computer program is run on an electronic device, the computer program is used to make the electronic device execute the method according to any one of claims 1 to 29.

34. A computer program product, characterized in that The method comprises a computer program stored in a computer-readable storage medium; when a processor of an electronic device reads the computer program from the computer-readable storage medium, the processor executes the computer program, so that the electronic device executes any one of the methods described in claims 1 to 29.

35. A vehicle, characterized in that: The vehicle is provided with at least one of the heat load detection device according to claim 31, the electronic device according to claim 32, the computer-readable storage medium according to claim 33, and the computer program product according to claim 34.

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