Vehicle cabin temperature adjusting method and device, vehicle, equipment and storage medium

Abstract

The invention relates to a vehicle cabin temperature adjusting method and device, a vehicle, equipment and a storage medium, and relates to the technical field of vehicles. The method is applied to vehicle center control and comprises the steps that the current temperature of a vehicle cabin is obtained; determining the target temperature of the vehicle cabin and the target wind speed of the vehicle-mounted air conditioner at least according to the current temperature; wherein when the temperature of the vehicle cabin is the target temperature and the vehicle-mounted air conditioner works at the target wind speed, the environment in the vehicle cabin meets the human body comfort level standard, and the temperature adjustment power consumption of the air conditioner for adjusting the temperature of the vehicle cabin to the target temperature is the lowest; and the vehicle-mounted air conditioner is controlled to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle-mounted air conditioner supplies air at the target air speed. Optimization of the power consumption of the air conditioner is further considered on the basis of optimizing the comfort degree, and energy waste caused by neglecting of the power consumption of the air conditioner is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to the technical field of vehicle cabin temperature adjustment, and specifically to a vehicle cabin temperature adjustment method and device, a vehicle, equipment and a storage medium. BACKGROUND

[0002] The air conditioning system in the vehicle can not only control the temperature in the vehicle to provide a better driving experience for the driver and passengers, but also provide services such as defogging of the front windshield or deicing of the windows. With the development of modern vehicles, a series of sensors such as temperature sensors, humidity sensors, fog sensors, and solar radiation sensors are installed in the air conditioning system to obtain more vehicle parameters and achieve more intelligent control. The development of new energy vehicles has increased the attention to intelligent cabins, and the control of the air conditioning system is closely related to the comfort of the cabin.

[0003] In the related art, the vehicle environment data is collected according to various sensors, and the air supply temperature and air speed of the vehicle air conditioner are intelligently adjusted according to the vehicle environment to improve the comfort of the driver or passenger in the vehicle cabin. However, the optimization of the power consumption of the vehicle air conditioner is ignored in this process, resulting in high power consumption of the vehicle air conditioner and affecting the vehicle's range. Especially in the current situation of limited energy reserves for new energy vehicles, the impact of this defect is more serious. SUMMARY

[0004] The present application provides a vehicle cabin temperature adjustment method, device, vehicle, equipment and storage medium to at least solve the technical problem of high power consumption of the vehicle air conditioner in the prior art. The technical solution of the present application is as follows:

[0005] According to the first aspect of the present application, a vehicle cabin temperature adjustment method is provided, which comprises: acquiring the current temperature of the vehicle cabin; determining the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner according to at least the current temperature; wherein when the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner works at the target air speed, the environment in the vehicle cabin meets the human comfort standard, and the temperature adjustment power consumption of the vehicle air conditioner adjusting the temperature of the vehicle cabin to the target temperature is the lowest; controlling the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle air conditioner blows air at the target air speed.

[0006] According to the above technical means, when the vehicle air conditioner adjusts the temperature of the vehicle cabin, the power consumption of the vehicle air conditioner is minimized on the basis of meeting the preset comfort standard, which is beneficial to saving vehicle energy consumption and improving the vehicle's range.

[0007] In a possible implementation, the acquiring the current temperature of the vehicle cabin comprises: dividing a temperature measurement region into a plurality of grids; the temperature measurement region comprises a plane inside the vehicle cabin and parallel to the ground; determining the temperature of the plurality of grids in the temperature measurement region by a least square method based on the time of sound wave propagation in the temperature measurement region; determining the temperature of each position in the temperature measurement region by an interpolation method according to the temperature of the plurality of grids; and determining the temperature of each position in the temperature measurement region as the current temperature of the vehicle cabin.

[0008] According to the technical means, compared with the ordinary temperature sensor which can only accurately measure the local temperature at the position of the temperature sensor, the sound wave temperature measurement can measure the temperature of a larger range of space. Further, the temperature data can be estimated according to part of the measurement data by the least square method and the interpolation method, the temperature of the vehicle cabin can be determined with a very small error, and thus other measurement instruments for obtaining accurate data are avoided, the cost is saved, and the device arrangement of the cabin space is simplified.

[0009] In a possible implementation, the determining the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner according to the current temperature comprises: constructing a first function according to the current temperature and a preset thermal comfort index constant, a preset thermal comfort influence coefficient; the first function represents the relationship between the thermal comfort index and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner; the thermal comfort index is used to reflect the human comfort standard; constructing a second function according to the current temperature; the second function represents the relationship between the temperature of the vehicle cabin and the temperature adjustment power consumption of the vehicle air conditioner; constructing a third function according to the first function and the second function; the third function represents the relationship between a weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner, the weighted sum being the weighted sum of the thermal comfort index and the temperature adjustment power consumption of the vehicle air conditioner based on a preset weight; and solving the third function to obtain the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner in the case that the weighted sum reaches a minimum value.

[0010] According to the technical means, the functions are constructed to represent the relationship between the temperature of the vehicle cabin and the air speed of the air conditioner and the weighted sum of the human thermal comfort standard and the power consumption of the air conditioner, which is beneficial to solving the target temperature and the target air speed; meanwhile, the preset weight can be set according to the actual situation, and the target temperature and the target air speed can also be flexibly determined according to the comfort degree of the driver or the passenger and the power consumption of the air conditioner.

[0011] In a possible implementation, the constructing the second function according to the current temperature comprises: acquiring the air mass, the air specific heat capacity and the energy efficiency ratio of the vehicle air conditioner in the vehicle cabin; determining the second function according to the current temperature, the air mass, the air specific heat capacity and the energy efficiency ratio of the vehicle air conditioner; and the second function represents the power consumption of the vehicle air conditioner required for adjusting the air in the vehicle cabin from the current temperature to another temperature.

[0012] According to the above technical means, the application starts from the change of the air temperature in the vehicle cabin, and determines the required air conditioning power consumption corresponding to the heat required for changing the air temperature in the vehicle cabin according to the energy efficiency ratio of the vehicle air conditioner. Compared with determining the air conditioning power consumption from the process of adjusting the temperature according to the rated power of the air conditioner, the complexity of the calculation and processing is low.

[0013] In a possible implementation, the third function is constructed according to the first function and the second function, including: normalizing the thermal comfort index to obtain a normalized comfort index; and normalizing the temperature adjustment power consumption based on a preset maximum temperature adjustment power consumption to obtain a normalized temperature adjustment power consumption; wherein the normalized comfort index and the normalized temperature adjustment power consumption have the same value range; and constructing the third function according to the first function, the second function, the normalized comfort index, and the normalized temperature adjustment power consumption.

[0014] According to the above technical means, since the thermal comfort index and the air conditioning power consumption have different dimensions, the different results obtained by simply adding the two do not have comparability. The normalization of the thermal comfort index and the air conditioning power consumption makes the different results of the sum of the normalized results have comparability.

[0015] In a possible implementation, the preset thermal comfort influence coefficient includes a human metabolic rate, an environmental pressure, a saturated water vapor pressure, an air specific heat capacity, and a ratio of a clothing surface area to a human skin surface area.

[0016] According to the above technical means, since the number of parameters related to the human thermal comfort index is large and complex, using preset values such as survey average values to determine these parameters as constants will not have a great influence on the determination of the thermal comfort index of each passenger or driver in the vehicle cabin, but can reduce the complexity of processing, save related data collection devices, and simplify the device arrangement in the cabin space.

[0017] According to the second aspect provided by the application, a vehicle cabin temperature adjustment device is provided. The vehicle cabin temperature adjustment device includes an acquisition unit, a determination unit, and an adjustment unit. The acquisition unit is configured to acquire a current temperature of a vehicle cabin. The determination unit is configured to determine a target temperature of the vehicle cabin and a target air speed of a vehicle air conditioner according to at least the current temperature. When the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner operates at the target air speed, the environment in the vehicle cabin meets the human comfort standard, and the temperature adjustment power consumption of the vehicle air conditioner for adjusting the temperature of the vehicle cabin to the target temperature is the lowest. The adjustment unit is configured to control the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle air conditioner to blow air at the target air speed.

[0018] In a possible implementation, the acquisition unit is specifically configured to divide the to-be-measured temperature region into a plurality of grids; the to-be-measured temperature region includes a plane inside the vehicle cabin and parallel to the ground; based on a time of propagation of the sound wave in the to-be-measured temperature region, the temperature of the plurality of grids in the to-be-measured temperature region is determined by a least square method; based on the temperature of the plurality of grids, the temperature of each position in the to-be-measured temperature region is determined by an interpolation method; and the temperature of each position in the to-be-measured temperature region is determined as the current temperature of the vehicle cabin.

[0019] In a possible implementation, the determination unit is specifically configured to construct a first function according to the current temperature and a preset thermal comfort index constant, and construct a second function according to at least the current temperature; the first function represents a relationship between a thermal comfort index and a temperature of the vehicle cabin and an air speed of the vehicle air conditioner; the thermal comfort index is used to reflect a human comfort standard; the second function represents a relationship between a temperature adjusting power consumption of the vehicle air conditioner and the temperature of the vehicle cabin; a third function is constructed according to the first function and the second function; the third function represents a relationship between a weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner, the weighted sum being a weighted sum of the thermal comfort index and the temperature adjusting power consumption of the vehicle air conditioner based on a preset weight; and the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner are obtained by solving the third function in a case where the weighted sum reaches a minimum value.

[0020] In a possible implementation, the determination unit is specifically configured to acquire an air mass, an air specific heat capacity, and an energy efficiency ratio of the vehicle air conditioner in the vehicle cabin; and determine a second function according to the current temperature, the air mass, the air specific heat capacity, and the energy efficiency ratio of the vehicle air conditioner; the second function represents a power consumption of the vehicle air conditioner required for adjusting the air in the vehicle cabin from the current temperature to another temperature.

[0021] In a possible implementation, the determination unit is specifically configured to normalize the thermal comfort index to obtain a normalized comfort index; and normalize the temperature adjusting power consumption based on a preset maximum temperature adjusting power consumption to obtain a normalized temperature adjusting power consumption; the normalized comfort index and the normalized temperature adjusting power consumption have a same value range; and a third function is constructed according to the first function, the second function, the normalized comfort index, and the normalized temperature adjusting power consumption.

[0022] In a possible implementation, the preset thermal comfort index constant includes a human metabolic rate, an environmental pressure, a saturated water vapor pressure, an air specific heat capacity, and a ratio of a clothing surface area to a human skin surface area.

[0023] According to a third aspect provided in the present application, a vehicle is provided, which includes a processor and a memory; the memory stores instructions executable by the processor; and the processor is configured to execute the instructions, so that the vehicle implements the method of the first aspect and any possible implementation thereof.

[0024] According to a fourth aspect provided by the present application, an apparatus is provided, comprising: a processor. A memory for storing processor-executable instructions. Wherein the processor is configured to execute the instructions to implement the method of the first aspect and any possible implementation thereof.

[0025] According to a fifth aspect provided by the present application, a computer-readable storage medium is provided, which, when instructions in the computer-readable storage medium are executed by a processor of an apparatus, enables the apparatus to perform the method of the first aspect and any possible implementation thereof.

[0026] Thus, the above technical features of the present application have the following beneficial effects:

[0027] (1) The present application can reduce the power consumption of the vehicle air conditioner as much as possible while meeting the preset comfort standard when adjusting the temperature of the vehicle cabin through the vehicle air conditioner, which is beneficial to saving vehicle energy consumption and improving the vehicle endurance.

[0028] (2) Compared with the ordinary temperature sensor which can only accurately measure the local temperature at the position of the temperature sensor, the acoustic wave temperature measurement can measure the temperature of a larger range of space. Further, by using the least square method and the interpolation method to estimate the temperature data according to part of the measurement data, the temperature of the vehicle cabin can be determined with very small error, thereby avoiding the increase of other measuring instruments for obtaining accurate data, saving the cost and simplifying the device arrangement of the cabin space.

[0029] (3) The constructor represents the relationship between the temperature of the vehicle cabin and the air conditioner wind speed and the weighted sum of the human thermal comfort standard and the air conditioner power consumption, which is beneficial to solving the target temperature and the target wind speed. At the same time, the preset weight can be set according to the actual situation, and the target temperature and the target wind speed can also be flexibly determined according to the comfort degree of the driver or the passenger and the power consumption of the air conditioner.

[0030] (4) The present application starts from the change of the air temperature in the vehicle cabin, and determines the air conditioner power consumption required for the heat required to change the air temperature of the vehicle cabin according to the energy efficiency ratio of the vehicle air conditioner. Compared with determining the power consumption of the air conditioner from the process of adjusting the temperature according to the rated power of the air conditioner, the complexity of the calculation and processing is low.

[0031] (5) Since the dimensions of the thermal comfort index and the air conditioner power consumption are different, the different results obtained by simply adding the two do not have comparability. The normalization of the thermal comfort index and the air conditioner power consumption makes the different results of the sum of the normalized results of the two have comparability.

[0032] (6) Since the number of parameters related to the human thermal comfort index is large and complex, using preset values such as survey average values to determine these parameters as constants will not have a great influence on the determination of the thermal comfort index of each passenger or driver in the vehicle cabin, but can reduce the complexity of processing, save related data acquisition devices, and simplify the device arrangement in the cabin space.

[0033] It should be noted that the technical effects brought by any implementation manner in the second aspect to the fifth aspect can refer to the technical effects brought by the corresponding implementation manner in the first aspect, which will not be repeated here.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application; they should not be regarded in an restrictive manner.

[0036] Figure 1 is a structural schematic diagram of a vehicle cabin temperature regulation system according to an exemplary embodiment;

[0037] Figure 2 is a flowchart of a vehicle cabin temperature regulation method according to an exemplary embodiment;

[0038] Figure 3 is a flowchart of another vehicle cabin temperature regulation method according to an exemplary embodiment;

[0039] Figure 4 is an example diagram of a temperature measurement area according to an exemplary embodiment;

[0040] Figure 5 is another example diagram of a temperature measurement area according to an exemplary embodiment;

[0041] Figure 6 is a flowchart of another vehicle cabin temperature regulation method according to an exemplary embodiment;

[0042] Figure 7 is a flowchart of another vehicle cabin temperature regulation method according to an exemplary embodiment;

[0043] Figure 8 is a flowchart of another vehicle cabin temperature regulation method according to an exemplary embodiment;

[0044] Figure 9is a flow chart of an example of a vehicle cabin temperature regulation method according to an example embodiment;

[0045] Figure 10 is a block diagram of a vehicle cabin temperature regulation device according to an example embodiment;

[0046] Figure 11 is a block diagram of an apparatus according to an example embodiment. DETAILED DESCRIPTION

[0047] In order for those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0049] Before a detailed introduction is made to the vehicle cabin temperature regulation method provided by the present application, a brief introduction is made to the prior art related to the present application.

[0050] Predicted mean vote (PMV): is a comprehensive evaluation index considering many factors related to human thermal comfort, based on the basic equation of human body heat balance and the grade of subjective thermal sensation in psychophysiology. The PMV index indicates the average index of the group's vote for the seven grades of thermal sensation (+3 to -3).

[0051] As in the background art, the air conditioning system in the vehicle can not only control the temperature in the vehicle to provide better driving experience for the driver and passengers, but also provide work such as defogging of the front windshield or deicing of the window. With the development of modern cars, the air conditioning system is equipped with a series of sensors such as temperature sensors, humidity sensors, fog sensors, solar radiation sensors, etc. to obtain more vehicle parameters and achieve more intelligent control. The development of new energy vehicles has increased the attention to intelligent cabins, and the control of the air conditioning system is closely related to the comfort of the cabin.

[0052] In the related art, the vehicle interior environment data is collected according to various sensors, so that the air supply temperature and air speed of the vehicle air conditioning system are intelligently adjusted according to the vehicle interior environment, so as to improve the comfort of the driver or passenger in the vehicle cabin. For example, the prior art 1 discloses a vehicle interior regional temperature detection control system and method. A plurality of temperature sensors are arranged in the vehicle interior to form a temperature field dividing temperature regions. The temperature information recorded by the temperature sensors forming the temperature field is used to divide the temperature regions by the finite element method and calculate the temperature of the temperature field. The temperature adjustment of each region is realized by calculating the difference between the temperature of each region and the preset temperature. The prior art 2 discloses a control technology for the temperature in the vehicle interior. A camera is arranged in the vehicle interior to measure the infrared radiation of the vehicle interior accessories related to the temperature. If the accessories in the vehicle interior cannot be detected, the average infrared value in the vehicle interior is recorded. The average temperature in the vehicle interior is determined by the measured infrared value. The measured average temperature in the vehicle interior is transmitted to the air conditioning system. The air conditioning system automatically adjusts the temperature and air flow in the interior according to the measured temperature. Although the related art improves the comfort of the driver or passenger brought by the working of the vehicle air conditioning system by various methods; but in this process, the optimization of the power consumption of the vehicle air conditioning system is ignored, which affects the endurance of the vehicle. Especially in the current situation of limited energy reserves of new energy vehicles, the influence of this defect is more serious.

[0053] Therefore, the present application provides a vehicle cabin temperature adjustment method, which further considers the optimization of air conditioner power consumption on the basis of optimizing comfort when adjusting the temperature of the vehicle cabin, thereby avoiding energy waste caused by ignoring the air conditioner power consumption.

[0054] Before the vehicle cabin temperature adjustment method provided by the present application is described in detail, the implementation environment (implementation architecture) related to the present application is briefly introduced.

[0055] Figure 1 A structural schematic diagram of a vehicle cabin temperature adjustment system is shown. As shown in Figure 1 The vehicle cabin temperature adjustment system includes at least one temperature detection device 10, a central controller 20, and a vehicle air conditioner 30.

[0056] The vehicle cabin temperature adjustment method provided by the present application can be applied to the central controller 20 of the temperature adjustment system. The temperature detection device 10 and the central controller 20 are connected, and the central controller 20 and the vehicle air conditioner 30 are connected.

[0057] The connection between the temperature detection device 10 and the central controller 20 and the connection between the central controller 20 and the vehicle-mounted air conditioner 30 can include wired connection or wireless connection. For example, the wired connection can be a wired connection through an optical fiber or other physical transmission medium; the wireless connection can be a Bluetooth connection, a wireless fidelity (Wi-Fi) connection, etc.

[0058] The temperature detection device 10 can include at least one of a temperature sensor and an acoustic wave generator.

[0059] In some embodiments, the temperature detection device 10 can be an acoustic wave generator, which is configured to generate or receive acoustic waves of a specific frequency, determine time information including a time interval from the generation of the acoustic waves to the reception of the acoustic waves, and send the time information to the central controller 20.

[0060] In some embodiments, the temperature detection device 10 can be a temperature sensor, which is configured to collect temperature information of the vehicle cabin and send the temperature information of the vehicle cabin to the central controller 20.

[0061] In some embodiments, the temperature detection device 10 can be an acoustic wave generator, and the central controller 20 is configured to receive the time information sent by the temperature detection device 10, determine the speed of sound of the acoustic waves in the to-be-measured temperature region according to the pre-stored related information of the to-be-measured temperature region (such as the size of the to-be-measured temperature region, the number of grids in the to-be-measured temperature region, the distribution of the grids, the positional relationship between the to-be-measured temperature region and the temperature detection device 10, and the positional relationship between the to-be-measured temperature region and the vehicle cabin, etc.) and the time interval, determine the temperature of the to-be-measured temperature region according to the relationship between the speed of sound and the medium temperature, and further determine the current temperature of the vehicle cabin.

[0062] In some embodiments, the temperature detection device 10 can be a temperature sensor, and the central controller 20 is configured to receive the temperature information of the vehicle cabin sent by the temperature detection device 10, and further determine the current temperature of the vehicle cabin.

[0063] In some embodiments, the central controller 20 is configured to determine the target temperature of the vehicle cabin and the target wind speed of the vehicle-mounted air conditioner 30 according to the current temperature of the vehicle cabin, an air temperature and heat formula of the vehicle cabin, a thermal comfort index calculation formula, a thermal comfort index constant, a preset weight between a thermal comfort index and an electricity consumption of the vehicle-mounted air conditioner 30, and physical parameters of the vehicle-mounted air conditioner 30, so that when the temperature of the vehicle cabin is the target temperature and the vehicle-mounted air conditioner 30 works at the target wind speed, the environment in the vehicle cabin meets the human comfort standard, and the electricity consumption of the vehicle-mounted air conditioner for adjusting the temperature of the vehicle cabin to the target temperature is the lowest.

[0064] In some embodiments, the central controller 20 is configured to send a control instruction to the vehicle air conditioner 30 based on the determined target temperature and target air speed, the control instruction being configured to instruct the vehicle air conditioner 30 to adjust the temperature of the vehicle cabin to the target temperature and to blow air at the target air speed.

[0065] In some embodiments, the vehicle air conditioner 30 is configured to receive the control instruction sent by the central controller 20, and to adjust the temperature of the vehicle cabin to the target temperature and to blow air at the target air speed. For ease of understanding, the vehicle cabin temperature adjustment method provided in the present application is described in detail below with reference to the accompanying drawings.

[0066] Figure 2 is a flowchart of a vehicle cabin temperature adjustment method according to an exemplary embodiment. The vehicle cabin temperature adjustment method is applied to the central controller 20 in the vehicle cabin temperature adjustment system as shown in Figure 1 . As shown in Figure 2 , the vehicle cabin temperature adjustment method comprises the following steps:

[0067] S101, obtaining a current temperature of the vehicle cabin.

[0068] The current temperature of the vehicle cabin can be determined by a temperature sensor or acoustic temperature measurement. There can be a temperature difference between different regions of the vehicle cabin. The current temperature here can include temperature values of different regions of the vehicle cabin, and the average temperature of the vehicle cabin is determined based on the temperature values of different regions of the vehicle cabin.

[0069] S102, determining a target temperature of the vehicle cabin and a target air speed of the vehicle air conditioner based at least on the current temperature.

[0070] When the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner operates at the target air speed, the environment in the vehicle cabin meets the human comfort standard, and the temperature adjustment of the vehicle cabin by the vehicle air conditioner to the target temperature has the lowest temperature adjustment power consumption. The comfort level is reflected by the thermal comfort index, and the thermal comfort index can be the predicted mean vote.

[0071] S103, controlling the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature and to blow air at the target air speed.

[0072] As a possible implementation, a control instruction is sent to the controller of the vehicle air conditioner, the control instruction including the target temperature of the vehicle cabin and the target air speed, so that the controller controls the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature and to blow air at the target air speed according to the control instruction.

[0073] In some embodiments, the steps shown in S101-S103 can be performed cyclically, so that the temperature adjustment strategy of the vehicle can be adjusted in real time according to the changes of the ambient temperature or other environmental factors.

[0074] It can be understood that, when adjusting the temperature of the vehicle cabin by the vehicle-mounted air conditioner, the power consumption of the vehicle-mounted air conditioner is reduced as much as possible on the basis of meeting the preset comfort standard, which is beneficial to saving the energy consumption of the vehicle and improving the endurance of the vehicle.

[0075] In some embodiments, as shown in S101, S101 can include: Figure 3

[0076] S201, dividing a to-be-measured temperature region into a plurality of grids.

[0077] The to-be-measured temperature region includes a plane inside the vehicle cabin and parallel to the ground. The to-be-measured temperature region can be a plane region inside the vehicle cabin and having an average temperature closest to the average temperature inside the vehicle cabin, which is determined through experiments.

[0078] S202, determining the temperatures of the plurality of grids in the to-be-measured temperature region by a least square method based on the time of propagation of the sound wave in the to-be-measured temperature region.

[0079] The time of propagation of the sound wave in the to-be-measured temperature region can be determined by generating or receiving the sound wave by at least one ultrasonic generator (which has the ability to generate and / or receive the sound wave) installed in advance inside the vehicle cabin, and the related information of the to-be-measured temperature region (such as the size of the to-be-measured temperature region, the number of grids in the to-be-measured temperature region, the distribution of the grids, the positional relationship between the to-be-measured temperature region and the ultrasonic generator, and the positional relationship between the to-be-measured temperature region and the vehicle cabin, etc.) is stored in the storage in advance. The ultrasonic generator can be a sound wave transducer. In order to ensure the accuracy of the sound wave temperature measurement, the to-be-measured temperature region can be a plane determined by at least one ultrasonic generator installed inside the vehicle cabin.

[0080] As a possible implementation, the sound velocity of the center points of the plurality of grids in the to-be-measured temperature region is determined by a least square method according to the propagation time of the sound wave on each sound wave propagation path, the length of the plurality of grids passed through by each propagation path, and the length of each grid, and the temperature of the center points of the plurality of grids is determined according to the relationship between the sound velocity and the medium temperature.

[0081] An exemplary Figure 4 is an example diagram of a to-be-measured temperature region according to an exemplary embodiment; as Figure 4 ​As shown, the temperature measurement area is divided into 9 square grids of 3×3. Three ultrasonic generators are evenly distributed on each of the four boundaries of the area to be measured. The side length of the grid is known to be A; ultrasonic generators U1 and D1 determine a sound wave propagation path. Perpendicularly through grids 1, 4, and 7, ultrasonic generators U2 and D2 determine a sound wave propagation path. Perpendicularly through grids 2, 5, and 8, ultrasonic generators U3 and D3 determine a sound wave propagation path R. D U 3 3 The sound wave passes perpendicularly through grids 3, 6, and 9. Time for transmission on exist Time for transmission on And in Time for transmission on as well as The time interval between the generation and reception of sound waves by the ultrasonic generator can be used to determine, and thus, the duration of the sound wave's activity can be determined. speed of propagation exist speed of propagation And in speed of propagation All the above quantities are known quantities. Assume the sound wave... The velocities of the sound wave passing through grids 1, 4, and 7 are v1, v2, and v3, respectively. The velocities of the sound wave passing through grids 2, 5, and 8 are v2, v5, and v8, respectively. The velocities when passing through grids 3, 6, and 9 are v3, v6, and v9, respectively. Based on these quantities, we have:

[0082]

[0083] in, For sound waves in The error between the measured and estimated propagation time. For sound waves in The error between the measured and estimated propagation time. For sound waves in The error between the measured and estimated propagation time on the surface. This can be corrected by multiple launches. as well as Sound waves propagating upwards, obtaining multiple as well as Such measurements, based on multiple measurements, are used to solve for v1, v2, ..., v9, so that... and The minimum, the speed of sound of the sound wave at the center of the grid 1-9 grid is obtained, according to the estimated value of the speed of sound and the relationship between the speed of sound and the temperature of the medium, the temperature at the center of the grid 1-9 can be obtained accordingly.

[0084] In some embodiments, in order to avoid the influence of the sound wave temperature measurement caused by the change of the internal environment structure of the vehicle cabin (such as the adjustment of the seat, the sitting posture of the driver or the passenger, etc.), at least one ultrasonic wave generator can be redundantly arranged based on the number of ultrasonic wave generators sufficient to complete the function of sound wave temperature measurement. The method of redundant arrangement covers more areas in the vehicle cabin, so that when the sound wave related to some ultrasonic wave generators is hindered by obstacles and affects the sound wave temperature measurement, other ultrasonic wave generators can realize the same temperature measurement function.

[0085] S203, according to the temperature of the plurality of grids, the temperature of each position in the temperature measurement area is determined by interpolation method.

[0086] As a possible implementation, the temperature at the center of the plurality of grids of the temperature measurement area obtained in S202 is taken as the node of interpolation, and the temperature of the points between the nodes of interpolation is estimated by using cubic spline interpolation method, so as to obtain the estimated value of the temperature of each position in the temperature measurement area, and further obtain the distribution of the estimated value of the temperature in the whole temperature measurement area.

[0087] Exemplary, Figure 5 is another example diagram of a temperature measurement area according to an exemplary embodiment; as Figure 5 shown, according to the numerical labels below and to the left of the temperature measurement area, the 9 grids in the temperature measurement area can be represented as S m,n , where m∈{1,2,3}, n∈{1,2,3}, further, the temperature measurement area is represented in a two-dimensional coordinate system, then the position of the temperature data point of the center of each grid can be represented as (x m ,y n ), based on the 9 points, cubic spline interpolation is performed to find 9 cubic polynomials corresponding to the 9 grids respectively:

[0088]

[0089] In formula 2, a i,j is the coefficient of cubic spline interpolation, B i (x) and B j (y) are basis functions, and cubic B-spline function is usually selected. Cubic spline interpolation satisfies the following conditions:

[0090] (1) the value of the interpolation function at each data point is equal to the data value of the point, that is, S(x m ,y n ) = T m,n; wherein S(·,·) represents an interpolation function, T m,n represents the temperature at the center point of S m,n .

[0091] (2) The first-order partial derivative of the interpolation function at each data point is equal to the first-order partial derivative of the interpolation function of the adjacent region of the region where the data point is located, i.e., S`(x m ,y n )=S`(x m+1 ,y n )=S`(x m ,y n+1 )=S`(x m+1 ,y n+1 ).

[0092] (3) The second-order partial derivative of the interpolation function at each data point is equal to the second-order partial derivative of the interpolation function of the adjacent region of the region where the data point is located, i.e., S``(x m ,y n )=S``(x m+1 ,y n )=S``(x m ,y n+1 )=S``(x m+1 ,y n+1 ).

[0093] (4) The second-order partial derivative of the interpolation function at the boundary is 0, i.e., S``(x1,y n )=S``(x m ,y1)=S``(x3,y n )=S``(x m ,y3)=0.

[0094] According to the above conditions, the cubic polynomial in each small interval can be obtained, and smooth connection in the entire temperature measurement region can be ensured, so that the estimated value of the temperature of each point in the temperature measurement region is determined according to the cubic polynomial, and the distribution of the estimated value of the temperature in the entire temperature measurement region is obtained.

[0095] S204, determining the temperature of each position in the temperature measurement region as the current temperature of the vehicle cabin.

[0096] As a possible implementation manner, the mean value of the temperature of each position in the temperature measurement region is determined as the current temperature of the vehicle cabin.

[0097] It can be understood that, compared with the ordinary temperature sensor which can only accurately measure the local temperature at the position of the temperature sensor, the acoustic temperature measurement can measure the temperature of a larger range of space; further, by least squares method and interpolation method, the temperature data can be estimated according to part of the measurement data, the temperature of the vehicle cabin can be determined with very small error, so as to avoid increasing other measuring instruments to obtain accurate data, save cost and simplify the device arrangement of the cabin space.

[0098] In some embodiments, as shown in Figure 6 S102 can include:

[0099] S301, constructing a first function according to the current temperature and a preset thermal comfort influence coefficient.

[0100] The first function represents the relationship between the thermal comfort index and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner. The preset thermal comfort index includes PMV, which is used to reflect the human comfort standard.

[0101] As a possible implementation manner, the first function is constructed based on the calculation formula of the thermal comfort index according to the current temperature.

[0102] S302, constructing a second function according to at least the current temperature.

[0103] The second function represents the relationship between the temperature of the vehicle cabin and the temperature adjusting power consumption of the vehicle air conditioner.

[0104] As a possible implementation manner, the second function representing the relationship between the temperature of the vehicle cabin and the temperature adjusting power consumption of the vehicle air conditioner is constructed according to the current temperature, the energy efficiency ratio of the vehicle air conditioner, the mass of the air inside the vehicle cabin and the specific heat capacity of the air, through the relationship among the energy efficiency ratio of the vehicle air conditioner, the heat and the power consumption of the vehicle air conditioner and the air heat change formula.

[0105] S303, constructing a third function according to the first function and the second function.

[0106] The third function represents the relationship between the weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner. The weighted sum is the weighted sum of the thermal comfort index and the temperature adjusting power consumption of the vehicle air conditioner based on the preset weight. The preset weight can be a weight determined according to experimental data to make the proportion of human thermal comfort and vehicle air conditioner energy consumption optimal, or can be obtained from the driver or passenger of the vehicle through the man-machine interaction system of the vehicle.

[0107] For example, assuming that the preset weight is λ, the third function is:

[0108] F(T,s)=λPMV(T,s)+(1-λ)W(T) (Formula 3)

[0109] In formula 3, F(T, s) is a third function, PMV(T, s) is a first function, and W(T) is a second function.

[0110] S304, in a case where the weighted sum is minimum, a third function is solved to obtain a target temperature of the vehicle cabin and a target air speed of the vehicle air conditioner.

[0111] The third function can be solved by a simulated annealing algorithm, or the third function, which is a binary function, can be solved to obtain a function minimum value in a preset target temperature range and a preset air speed range, or the third function can be solved by a multi-objective optimization algorithm or a genetic algorithm.

[0112] It can be understood that the construction function represents the relationship between the temperature and air speed of the vehicle cabin and the weighted sum of the human thermal comfort standard and the air conditioner power consumption, which is beneficial to solving the target temperature and the target air speed. Meanwhile, the preset weight can be set according to actual conditions, and the target temperature and the target air speed can also be flexibly determined according to the comfort degree of the driver or the passenger and the power consumption of the air conditioner.

[0113] In some embodiments, as shown in FIG. 3, S302 can include: Figure 7

[0114] S401, obtaining air mass, air specific heat capacity in the vehicle cabin, and energy efficiency ratio of the vehicle air conditioner.

[0115] As a possible implementation manner, the air mass in the vehicle cabin can be a preset air mass. The preset air mass is an air mass determined by experiments based on the average value of experimental data of the air mass in the vehicle cabin under various environments.

[0116] As another possible implementation manner, a gas density detector is installed inside the vehicle cabin, and the air mass inside the vehicle cabin can be determined by detecting the air density inside the vehicle cabin in real time by the gas density detector and the volume of the vehicle cabin.

[0117] S402, determining a second function according to the current temperature, the air mass, the air specific heat capacity, and the energy efficiency ratio of the vehicle air conditioner.

[0118] The second function represents the power consumption of the vehicle air conditioner required for adjusting the air in the vehicle cabin from the current temperature to another temperature.

[0119] For example, assuming that the energy efficiency ratio of the vehicle air conditioner is COP, then:

[0120]

[0121] ​In formula 4, Q represents the heat required for the air conditioner to adjust the temperature in a certain space from the original temperature to a certain temperature, and W represents the power consumption of the air conditioner. It can be seen that:

[0122]

[0123] And there is an air heat change formula:

[0124] Q(T) = m x c x |T-t| (formula 6)

[0125] Wherein, m is the mass of the air in the vehicle cabin, c is the specific heat capacity of the air, T represents the target temperature, and t represents the current temperature; Therefore, combined with formula 5 and formula 6, the second function can be obtained:

[0126]

[0127] It can be understood that, starting from the change of the air temperature in the vehicle cabin, the heat required to change the air temperature in the vehicle cabin to a certain temperature is determined in combination with the energy efficiency ratio of the vehicle-mounted air conditioner, and the power consumption required by the air conditioner. Compared with determining the power consumption of the air conditioner from the process of adjusting the temperature according to the rated power of the air conditioner, the complexity of the calculation and processing is low.

[0128] In some embodiments, the preset weight includes a first preset weight corresponding to the thermal comfort index and a second preset weight corresponding to the temperature adjustment power consumption; as Figure 8 As shown in FIG. 3, S303 can include:

[0129] S501, normalizing the thermal comfort index to obtain a normalized comfort index.

[0130] As a possible implementation manner, according to the value range of the thermal comfort index, the expression of the thermal comfort index is processed to obtain the normalized comfort index, and the value range of the normalized comfort index is [0, 1].

[0131] For example, the normalized comfort index can be as shown in the following formula:

[0132]

[0133] S502, based on the preset maximum temperature adjustment power consumption, the temperature adjustment power consumption is normalized to obtain a normalized temperature adjustment power consumption.

[0134] Wherein, the value range of the normalized comfort index and the normalized temperature adjustment power consumption index is the same.

[0135] As a possible implementation manner, the ratio of the temperature adjustment power consumption to the preset maximum temperature adjustment power consumption is taken as the normalized temperature adjustment power consumption. The preset maximum temperature adjustment power consumption can be the power consumption required for the vehicle-mounted air conditioner to change the air temperature in the vehicle cabin from the current temperature to a temperature of 20 degrees Celsius.

[0136] For example, the preset maximum temperature adjustment power consumption is as follows:

[0137]

[0138] The normalized temperature adjustment power consumption is:

[0139]

[0140] S503, constructing a third function according to the first function, the second function, the normalized thermal comfort index, and the normalized temperature adjustment power consumption.

[0141] The third function represents the relationship between the weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner, and the weighted sum is the weighted sum of the normalized thermal comfort index and the normalized temperature adjustment power consumption based on a preset weight.

[0142] For example, based on the above example, the third function can be represented as:

[0143]

[0144] It can be understood that the dimensions of the thermal comfort index and the air conditioner power consumption are different, so the different results obtained by simply adding the two are not comparable. The normalization of the thermal comfort index and the air conditioner power consumption makes the different results of the sum of the normalized results of the two comparable.

[0145] In some embodiments, the preset thermal comfort influence coefficient includes a human metabolic rate, an environmental pressure, a saturated water vapor pressure, an air specific heat capacity, and a clothing surface area to human skin surface area ratio.

[0146] The preset thermal comfort influence coefficient includes a human metabolic rate, a clothing surface area to skin surface area ratio, a standard atmospheric pressure, a water vaporization heat, a water vapor gas constant, and a reference temperature.

[0147] For example, the expression of PMV is:

[0148]

[0149] In formula 12, the value range of PMV is [-3, 3], PMV=3 represents that the human body feels hot to the environment temperature, PMV=2 represents that the human body feels warm to the environment temperature, PMV=1 represents that the human body feels relatively warm to the environment temperature, PMV=0 represents that the human body feels moderate to the environment temperature, PMV=-1 represents that the human body feels slightly cool to the environment temperature, PMV=-2 represents that the human body feels cool to the environment temperature, and PMV=-3 represents that the human body feels cold to the environment temperature; the above values and the corresponding human body feeling are standards in general cases, and specific cases can be slightly different due to different human constitutions. M represents the metabolic rate of the human body, and is preset as 70 W / m 2 cl f represents the ratio of the outer surface area of the clothes to the skin surface area, and is preset as 0.7, c p represents the specific heat capacity of air, and is 1.005 kJ / kg·K, P a represents the standard atmospheric pressure, and is 101.325 kPa, T cl is the outer surface temperature of the clothes, and is determined according to the current temperature, T represents the environment temperature, that is, the vehicle cabin temperature in the foregoing description of the application, s represents the air flow rate, that is, the air speed of the vehicle air conditioner in the foregoing description of the application, P v is the saturated water vapor pressure, and can be represented by the following formula:

[0150]

[0151] In formula 13, P0 is a reference pressure, and is the standard atmospheric pressure, L is the heat of vaporization of water, and a commonly used value is 2.257 kJ / g, R v is the gas constant of water vapor, and is 8.314 J / (mol*k), and T0 is a reference temperature, and is 273.15 K. Therefore, PMV can be represented as a bivariate function of the vehicle cabin temperature and the air speed of the vehicle air conditioner:

[0152]

[0153] The bivariate function is the first function.

[0154] It can be understood that the number of parameters related to the human body thermal comfort index is large and complex, and using preset values such as survey average values to determine these parameters as constants will not have a great influence on the determination of the thermal comfort index of each passenger or driver in the vehicle cabin, but can reduce the complexity of processing, save related data acquisition devices, and simplify the device arrangement of the cabin space.

[0155] The above embodiments introduce the vehicle cabin temperature regulation method provided by the embodiments of the application, in order to facilitate understanding, the vehicle cabin temperature regulation method provided by the embodiments of the application is further introduced in combination with specific examples as follows:

[0156] ​Figure 9 A flow chart of an example of a vehicle cabin temperature adjustment method provided by an embodiment of the present application is shown. As shown in the figure, the flow can include: Figure 9

[0157] S601, at least one acoustic wave transducer generates and receives acoustic waves, determines the propagation time of the acoustic waves on at least one path, and sends the propagation time of the acoustic waves on the at least one path to the vehicle central control.

[0158] Wherein, the at least one path is in the plane where the temperature measurement region is located.

[0159] S602, the vehicle central control receives the propagation time of the acoustic waves on the at least one path, determines the temperature at each location in the temperature measurement region according to the pre-stored temperature measurement region information and the propagation time of the acoustic waves on the at least one path, and further determines the current temperature of the vehicle cabin.

[0160] Wherein, the temperature measurement region information includes the size of the temperature measurement region, the size of the grid in the temperature measurement region, and the distribution of the grid, etc., so as to facilitate the processing of the temperature measurement region and the at least one path in the coordinate graph. The determination of the temperature at each location in the temperature measurement region can refer to the embodiments described in S201-S203, which will not be described here.

[0161] S603, the vehicle central control determines the target temperature of the vehicle cabin and the target air speed of the vehicle-mounted air conditioner according to the current temperature of the vehicle cabin.

[0162] Wherein, the specific determination process can refer to the embodiments described in S301-S304, the embodiments shown in formula 3-formula 5, the embodiments described in S401-S402, and the embodiments described in S501-S503, which will not be described here.

[0163] S604, the vehicle central control controls the vehicle-mounted air conditioner to adjust the temperature of the vehicle cabin to the target temperature and to blow air at the target air speed.

[0164] The above mainly introduces the scheme provided by the embodiments of the present application from the perspective of the method. In order to realize the above functions, the vehicle cabin temperature adjustment device, the vehicle or the equipment includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0165] ​The vehicle cabin temperature adjusting device, the vehicle, or the equipment can be divided into functional modules according to the above method. For example, the vehicle cabin temperature adjusting device, the vehicle, or the equipment can include various functional modules corresponding to various functional divisions, or two or more functions can be integrated into one processing module. The integrated module can be realized in the form of hardware or in the form of a software functional module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical functional division. Actual implementation can have another division manner.

[0166] Figure 10 FIG. 7 is a block diagram of a vehicle cabin temperature adjusting device according to an example embodiment. The vehicle cabin temperature adjusting device is applied to a vehicle central control. Referring to FIG. 7, Figure 10 The vehicle cabin temperature adjusting device 700 includes an acquisition unit 701, a determination unit 702, and an adjusting unit 703.

[0167] The acquisition unit 701 is configured to acquire a current temperature of a vehicle cabin.

[0168] The determination unit 702 is configured to determine a target temperature of the vehicle cabin and a target air speed of a vehicle air conditioner according to at least the current temperature.

[0169] When the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner works at the target air speed, the environment in the vehicle cabin meets the human comfort standard, and the temperature adjusting power consumption of the vehicle air conditioner adjusting the temperature of the vehicle cabin to the target temperature is the lowest.

[0170] The adjusting unit 703 is configured to control the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle air conditioner to blow air at the target air speed.

[0171] Optionally, the acquisition unit 701 is specifically configured to: divide a temperature measurement area into a plurality of grids; the temperature measurement area includes a plane inside the vehicle cabin and parallel to the ground; determine the temperatures of the plurality of grids in the temperature measurement area by a least square method based on the time of sound wave propagation in the temperature measurement area; determine the temperatures of each position in the temperature measurement area by an interpolation method according to the temperatures of the plurality of grids; and determine the temperatures of each position in the temperature measurement area as the current temperature of the vehicle cabin.

[0172] Optionally, the determining unit 702 is specifically configured to: construct a first function according to the current temperature and a preset thermal comfort influence coefficient; the first function represents a relationship between a thermal comfort index and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner; the thermal comfort index is used to reflect a human comfort standard; construct a second function according to at least the current temperature; the second function represents a relationship between a temperature adjustment power consumption of the vehicle air conditioner and the temperature of the vehicle cabin; construct a third function according to the first function and the second function; the third function represents a relationship between a weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner, and the weighted sum is a weighted sum of the thermal comfort index and the temperature adjustment power consumption of the vehicle air conditioner based on a preset weight; and obtain the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner by solving the third function under the condition that the weighted sum reaches a minimum value.

[0173] Optionally, the determining unit 702 is specifically configured to: obtain the air quality, the air specific heat capacity and the energy efficiency ratio of the vehicle air conditioner in the vehicle cabin; determine a second function according to the current temperature, the air quality, the air specific heat capacity and the energy efficiency ratio of the vehicle air conditioner; and the second function represents a power consumption of the vehicle air conditioner required for adjusting the air in the vehicle cabin from the current temperature to another temperature.

[0174] Optionally, the determining unit 702 is specifically configured to: normalize the thermal comfort index to obtain a normalized comfort index; and normalize the temperature adjustment power consumption based on a preset maximum temperature adjustment power consumption to obtain a normalized temperature adjustment power consumption; the normalized comfort index and the normalized temperature adjustment power consumption index have the same value range; and construct a third function according to the first function, the second function, the normalized comfort index and the normalized temperature adjustment power consumption.

[0175] Optionally, the preset thermal comfort influence coefficient includes a human metabolic rate, an environmental pressure, a saturated water vapor pressure, an air specific heat capacity and a ratio of a clothing surface area to a human skin surface area.

[0176] As to the apparatus in the above-described embodiments, specific manners in which various modules perform operations have been described in details in the embodiments of the method, and thus will not be repeated here.

[0177] In the example embodiments of the present application, a vehicle is also provided, which includes a processor and a memory. The memory stores instructions executable by the processor; and the processor is configured to execute the instructions, so that the vehicle implements the vehicle cabin temperature adjustment method in the above-described embodiments.

[0178] Figure 11 is a block diagram of an apparatus according to an example embodiment. As shown in Figure 11 The apparatus 800 includes, but is not limited to, a processor 801 and a memory 802.

[0179] The memory 802 is configured to store executable instructions of the processor 801. It can be understood that the processor 801 is configured to execute the instructions to implement the vehicle cabin temperature adjustment method in the above embodiments.

[0180] It should be noted that those skilled in the art can understand that the device structure shown in the above embodiments does not constitute a limitation on the device, and the device can include more or fewer components than those shown in the above embodiments, or combine some components, or different component arrangements. Figure 11 It should be noted that those skilled in the art can understand that the device structure shown in the above embodiments does not constitute a limitation on the device, and the device can include more or fewer components than those shown in the above embodiments, or combine some components, or different component arrangements. Figure 11 It should be noted that those skilled in the art can understand that the device structure shown in the above embodiments does not constitute a limitation on the device, and the device can include more or fewer components than those shown in the above embodiments, or combine some components, or different component arrangements.

[0181] The processor 801 is the control center of the device, which connects all parts of the device through various interfaces and lines, executes or runs software programs and / or modules stored in the memory 802, and calls data stored in the memory 802, to perform various functions of the device and process data, thereby overall monitoring the device. The processor 801 can include one or more processing units. Alternatively, the processor 801 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 801.

[0182] The memory 802 can be used to store software programs and various data. The memory 802 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, application programs (such as the obtaining unit 701, the determining unit 702, and the adjusting unit 703) required by at least one function module, etc. In addition, the memory 802 can include a high-speed random access memory, and can also include a non-volatile memory, for example, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0183] In the exemplary embodiments, a computer readable storage medium including instructions is also provided, for example, the memory 802 including instructions, which can be executed by the processor 801 of the device 800 to implement the vehicle cabin temperature adjustment method in the above embodiments.

[0184] In actual implementation, Figure 10 The functions of the obtaining unit 701, the determining unit 702, and the adjusting unit 703 in the above embodiments can be realized by the processor 801 calling the computer program stored in the memory 802. Figure 11 The specific execution process can refer to the description of the vehicle cabin temperature adjustment method in the above embodiments, which will not be described here.

[0185] Optionally, the computer readable storage medium can be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium can be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0186] In the example embodiments, the embodiments of the present application also provide a computer program product comprising one or more instructions executable by a processor of a device to complete the vehicle cabin temperature adjustment method in the above embodiments.

[0187] It should be noted that the instructions in the above computer readable storage medium or the one or more instructions in the computer program product are executed by the processor of the device to realize each process of the above vehicle cabin temperature adjustment method embodiments, and can achieve the same technical effects as the above vehicle cabin temperature adjustment method. To avoid repetition, it will not be repeated here.

[0188] Through the description of the above embodiments, those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of each functional module is taken as an example for illustration. In actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0189] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed each other can be through some interface, indirect coupling or communication connection between the devices or units, which can be electrical, mechanical or other forms.

[0190] The units described as separate components can or can not be physically separate, and the components shown as units can be one physical unit or multiple physical units, that is, can be located in one place, or can be distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment scheme.

[0191] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit.

[0192] When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application essentially or the parts that make contributions to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The software product is stored in a storage medium, including a plurality of instructions to make a device (which can be a single-chip microcomputer, a chip, etc.) or a processor execute all or part of the steps of the method of each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media that can store program codes.

[0193] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of regulating the temperature of a vehicle cabin, characterized by, The method is applied to a vehicle central control; the method comprises: obtaining a current temperature of a vehicle cabin; determining a target temperature of the vehicle cabin and a target air speed of a vehicle air conditioner according to at least the current temperature; wherein when the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner works at the target air speed, the environment in the vehicle cabin meets the human comfort standard, and the vehicle air conditioner adjusts the temperature of the vehicle cabin to the target temperature with the lowest temperature adjustment power consumption; controlling the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle air conditioner blows air at the target air speed.

2. The vehicle cabin temperature regulation method of claim 1, wherein, The method comprises: dividing a to-be-measured temperature region into a plurality of grids; the to-be-measured temperature region comprises a plane inside the vehicle cabin and parallel to the ground; determining the temperature of the plurality of grids in the to-be-measured temperature region by a least square method based on the time of sound wave propagation in the to-be-measured temperature region; determining the temperature of each position in the to-be-measured temperature region by an interpolation method according to the temperature of the plurality of grids; determining the temperature of each position in the to-be-measured temperature region as the current temperature of the vehicle cabin.

3. The vehicle cabin temperature adjustment method according to claim 1 or 2, characterized by, The method comprises: constructing a first function according to the current temperature and a preset thermal comfort influence coefficient; the first function represents the relationship between a thermal comfort index and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner; wherein the thermal comfort index is used to reflect the human comfort standard; constructing a second function according to at least the current temperature; the second function represents the relationship between the temperature adjustment power consumption of the vehicle air conditioner and the temperature of the vehicle cabin; constructing a third function according to the first function and the second function; the third function represents the relationship between a weighted sum and the temperature of the vehicle cabin and the air speed of the vehicle air conditioner, the weighted sum being the weighted sum of the thermal comfort index and the temperature adjustment power consumption of the vehicle air conditioner based on a preset weight; solving the third function to obtain the target temperature of the vehicle cabin and the target air speed of the vehicle air conditioner in the case that the weighted sum reaches a minimum value.

4. The vehicle cabin temperature regulation method of claim 3, wherein, The method comprises: obtaining the air mass, air specific heat capacity and energy efficiency ratio of the vehicle air conditioner in the vehicle cabin; determining a second function according to the current temperature, the air mass, the air specific heat capacity and the energy efficiency ratio of the vehicle air conditioner; the second function represents the power consumption of the vehicle air conditioner required to adjust the air in the vehicle cabin from the current temperature to another temperature.

5. The vehicle cabin temperature regulation method of claim 3, wherein, The method comprises: normalizing the thermal comfort index to obtain a normalized comfort index; normalizing the temperature adjustment power consumption based on a preset maximum temperature adjustment power consumption to obtain a normalized temperature adjustment power consumption; wherein the normalized comfort index and the normalized temperature adjustment power consumption index have the same value range. A third function is constructed according to the first function, the second function, the normalized comfort index and the normalized temperature adjustment power consumption.

6. The vehicle cabin temperature regulation method of claim 3, wherein, The preset thermal comfort influence coefficient includes a human metabolic rate, an ambient pressure, a saturated water vapor pressure, an air specific heat capacity and a ratio of a clothing surface area to a human skin surface area.

7. A vehicle cabin temperature regulating device, characterized by, The device comprises an acquisition unit, a determination unit and an adjustment unit. The acquisition unit is configured to acquire a current temperature of a vehicle cabin. The determination unit is configured to determine a target temperature of the vehicle cabin and a target air speed of a vehicle air conditioner according to at least the current temperature; when the temperature of the vehicle cabin is the target temperature and the vehicle air conditioner operates at the target air speed, an environment in the vehicle cabin satisfies a human comfort standard, and a temperature adjustment power consumption of the vehicle air conditioner for adjusting the temperature of the vehicle cabin to the target temperature is the lowest. The adjustment unit is configured to control the vehicle air conditioner to adjust the temperature of the vehicle cabin to the target temperature, and the vehicle air conditioner to blow air at the target air speed.

8. A vehicle characterized by comprising: The vehicle comprises a processor and a memory. The memory stores instructions executable by the processor. The processor is configured to execute the instructions, so that the vehicle implements the method according to any one of claims 1-6.

9. An apparatus, comprising: Comprise: A processor; A memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, When the computer-executable instructions stored in the computer-readable storage medium are executed by the processor of the device, the device can perform the method according to any one of claims 1-6.

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