CN117485095A - Temperature control method, device, storage medium and equipment - Google Patents

Temperature control method, device, storage medium and equipment Download PDF

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Publication number
CN117485095A
CN117485095A CN202311672226.1A CN202311672226A CN117485095A CN 117485095 A CN117485095 A CN 117485095A CN 202311672226 A CN202311672226 A CN 202311672226A CN 117485095 A CN117485095 A CN 117485095A
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China
Prior art keywords
temperature
vehicle
target temperature
correction
zone
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CN202311672226.1A
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Chinese (zh)
Inventor
郭厚东
刘丽鑫
黄景运
谢诚
胡彬莹
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GAC Aion New Energy Automobile Co Ltd
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GAC Aion New Energy Automobile Co Ltd
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Priority to CN202311672226.1A priority Critical patent/CN117485095A/en
Publication of CN117485095A publication Critical patent/CN117485095A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/0075—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being solar radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices

Abstract

The application provides a temperature control method, a device, a storage medium and equipment, wherein in the method, a single in-vehicle temperature sensor arranged in the center of a vehicle is used for acquiring an in-vehicle temperature sampling value, a temperature correction value corresponding to a target temperature zone is determined according to the current vehicle speed, the outside temperature and the air conditioning circulation state, the air outlet temperature and the illumination intensity of the target temperature zone, then the in-vehicle temperature sampling value is corrected based on the temperature correction value to obtain the head temperature of the target temperature zone, and the temperature of the target temperature zone is controlled accordingly. Therefore, the accuracy of temperature control of each temperature zone is improved while the cost of the temperature sensor in the vehicle is reduced.

Description

Temperature control method, device, storage medium and equipment
Technical Field
The application relates to the technical field of automobile air conditioners, in particular to a temperature control method, a temperature control device, a storage medium and temperature control equipment.
Background
With the rapid development of automobile technology, automobiles become an important riding tool in daily life. In order to meet different requirements on temperature conditions in a vehicle at different positions in the vehicle, the space in the vehicle is generally divided into a plurality of temperature areas, and the temperature of each temperature area can be independently regulated. Current multi-temperature zone air conditioning systems generally employ at least two in-vehicle temperature sensors for closed loop control. However, the cost of a plurality of independent sensors is high, and the sampling value of the temperature sensor in the vehicle cannot truly represent the actual temperature of each temperature zone due to the limit value of the installation environment, especially in complex and changeable driving environments, so that when the temperature control is directly carried out on each temperature zone based on the sampling value of the sensor, the control is not accurate enough, and the use experience of drivers and passengers is easily affected.
Disclosure of Invention
The invention aims to provide a temperature control method, a temperature control device, a storage medium and temperature control equipment, and aims to solve the problems of high cost and inaccurate control existing in a temperature control mode of a multi-temperature-zone air conditioning system in the related technology.
In a first aspect, the present application provides a temperature control method, including: acquiring an in-vehicle temperature sampling value detected by a target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle; determining a temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state of the target temperature zone, the air outlet temperature and the illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle; and obtaining the head temperature corresponding to the target temperature zone based on the temperature sampling value in the vehicle and the temperature correction value, and controlling the temperature of the target temperature zone based on the head temperature.
In the implementation process, a single in-vehicle temperature sensor arranged in the center of the vehicle is used for acquiring an in-vehicle temperature sampling value, a temperature correction value corresponding to a target temperature zone is determined according to the current vehicle speed, the outside temperature, the air conditioning circulation state, the air outlet temperature and the illumination intensity of the target temperature zone, then the in-vehicle temperature sampling value is corrected based on the temperature correction value, the head temperature of the target temperature zone is obtained, and the temperature of the target temperature zone is controlled according to the temperature correction value. Therefore, the accuracy of temperature control of each temperature zone is improved while the cost of the temperature sensor in the vehicle is reduced.
Further, in some examples, the temperature correction values corresponding to the target temperature zone include a first correction value, a second correction value, a third correction value, and a fourth correction value; the first correction value characterizes the correction of the temperature outside the vehicle to the temperature in the vehicle of the target temperature zone; the second correction value represents correction of the head temperature of the target temperature zone by the temperature outside the vehicle; the third correction value characterizes the correction of the temperature of the head of the target temperature zone by the air outlet temperature; the fourth correction value characterizes a correction of the head temperature of the target temperature zone by the illumination.
In the implementation process, the temperature correction value corresponding to the target temperature zone is formed by four parts of correction, namely correction of the temperature outside the vehicle to the temperature inside the vehicle, correction of the temperature outside the vehicle to the head temperature, correction of the temperature of the air outlet to the head temperature and correction of the illumination to the head temperature, and more accurate head temperature can be obtained through the four parts of correction.
Further, in some examples, the determining the temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state, the air outlet temperature and the illumination intensity of the target temperature zone includes: when the air conditioning circulation state of the target temperature zone is internal circulation, determining that the first correction value and the second correction value are zero; when the air conditioner circulation state of the target temperature is not internal circulation, respectively inquiring a first calibration table and a second calibration table according to the current vehicle speed and the external temperature to obtain a first correction factor and a second correction factor, multiplying the first correction factor by a circulation proportion coefficient to obtain a first correction value, and multiplying the second correction factor by the circulation proportion coefficient to obtain a second correction value; calculating a difference value obtained by subtracting the sampling value of the temperature in the vehicle from the average air outlet temperature of the target temperature zone, and inquiring a third calibration table according to the difference value to obtain a third correction value; inquiring a fourth calibration table according to the illumination intensity of the target temperature zone and the current vehicle speed to obtain a sunlight compensation value, inquiring a fifth calibration table according to the temperature outside the vehicle to obtain an external temperature coefficient, and multiplying the sunlight compensation value by the external temperature coefficient to obtain a fourth correction value.
In the implementation process, a specific way for obtaining the temperature correction value corresponding to the target temperature zone is provided.
Further, in some examples, the average air outlet temperature is obtained by performing weighted calculation based on the air outlet temperature of the blowing window air outlet, the air outlet temperature of the blowing face air outlet, the air outlet temperature of the blowing foot air outlet, and the corresponding blowing window proportion, blowing face proportion and blowing foot proportion.
In the implementation process, the weighted average air outlet temperature is obtained according to the blowing window proportion, the blowing face proportion and the blowing foot proportion, so that correction of the air outlet temperature to the head temperature is facilitated to be accurately estimated.
Further, in some examples, the illumination intensity of the target temperature zone is a product between a solar skew factor and an intensity of light of the target temperature zone; the solar oblique factor is obtained by inquiring a sixth calibration table according to a solar altitude angle and a vehicle head direction; the solar altitude is obtained based on weather forecast application; the head orientation is obtained based on a navigation system; the light intensity is obtained based on a light intensity sensor.
In the implementation process, a specific way of acquiring the illumination intensity of the target temperature zone is provided.
Further, in some examples, before the obtaining the head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value includes: and performing first-order low-pass filtering processing on the in-vehicle temperature sampling value to obtain the filtered in-vehicle temperature.
In the implementation process, noise in the acquisition signal of the target temperature sensor can be filtered out by performing first-order low-pass filtering processing on the temperature sampling value in the vehicle, and the measurement accuracy of the temperature in the vehicle is improved.
Further, in some examples, the obtaining the head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value includes: and adding the filtered temperature in the vehicle and the temperature correction value, and determining the added value as the head temperature corresponding to the target temperature zone.
In the implementation process, the head temperature corresponding to the target temperature zone can be obtained by adding the filtered temperature in the vehicle and the calculated temperature correction value. Thus, the calculated head temperature is more truly representative of the actual temperature of the corresponding temperature zone.
In a second aspect, the present application provides a temperature control device, comprising: the acquisition module is used for acquiring the temperature sampling value in the vehicle detected by the target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle; the determining module is used for determining a temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state of the target temperature zone, the air outlet temperature and the illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle; and the control module is used for obtaining the head temperature corresponding to the target temperature zone based on the temperature sampling value in the vehicle and the temperature correction value, and controlling the temperature of the target temperature zone based on the head temperature.
In a third aspect, the present application provides an electronic device, including: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.
In a fourth aspect, the present application provides a computer readable storage medium having instructions stored thereon, which when run on a computer, cause the computer to perform the method according to any of the first aspects.
In a fifth aspect, the present application provides a computer program product which, when run on a computer, causes the computer to perform the method according to any one of the first aspects.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the techniques disclosed herein.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a temperature control method provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a workflow of an in-vehicle temperature correction scheme for an in-vehicle multi-temperature-zone air conditioner according to an embodiment of the present application;
FIG. 3 is a block diagram of a temperature control device according to an embodiment of the present disclosure;
fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As described in the background art, the temperature control method of the multi-temperature zone air conditioning system in the related art has the problems of high cost and inaccurate control. Based on this, the embodiment of the application provides a new temperature control scheme to solve the above-mentioned problems.
The embodiments of the present application are described below:
as shown in fig. 1, fig. 1 is a flowchart of a temperature control method according to an embodiment of the present application. The method may be applied to an electronic control unit (Electronic Control Unit, ECU) of a dual or multi-temperature zone air conditioning system.
The method comprises the following steps:
step 101, acquiring an in-vehicle temperature sampling value detected by a target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle;
the target temperature sensor mentioned in this step is a temperature sensor arranged in a central position in the vehicle, and may be an NTC (Negative Temperature Coefficient ) thermistor, or may be another type of temperature sensor. In the scheme of the embodiment, the target temperature sensor is connected with the ECU of the control system and provides signals for the ECU, and the ECU corrects the sampling value of the temperature in the vehicle detected by the target temperature sensor into the head temperature of each temperature zone through algorithm correction, so that independent closed-loop control of multiple temperature zones is realized.
102, determining a temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state of the target temperature zone, the air outlet temperature and the illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle;
according to the scheme of the embodiment, the correction value of the temperature of the head of the target temperature zone is determined according to the parameters of the current vehicle speed, the external temperature, the air conditioning circulation state, the air outlet temperature and the illumination intensity, and the parameters can be obtained through the original sensors of the whole vehicle, so that the correction of the temperature sampling value in the vehicle can be realized under the condition that the hardware of the vehicle is not added, and the accurate temperature control of multiple temperature zones is realized on the basis of reducing one internal temperature sensor.
In some embodiments, the temperature correction values corresponding to the target temperature zone mentioned in this step may include a first correction value, a second correction value, a third correction value, and a fourth correction value; the first correction value characterizes the correction of the temperature outside the vehicle to the temperature in the vehicle of the target temperature zone; the second correction value represents correction of the head temperature of the target temperature zone by the temperature outside the vehicle; the third correction value characterizes the correction of the temperature of the head of the target temperature zone by the air outlet temperature; the fourth correction value characterizes a correction of the head temperature of the target temperature zone by the illumination. That is, the temperature correction value corresponding to the target temperature zone may be composed of four parts of correction, namely, correction of the vehicle exterior temperature to the vehicle interior temperature, correction of the vehicle exterior temperature to the head temperature, correction of the air outlet temperature to the head temperature, and correction of the light irradiation to the head temperature. In practical application, the temperature of the head in the automobile is influenced by the heat radiation, the illumination intensity, the air outlet temperature and the like of the windshield and the sky curtain glass, so that experiments show that the head temperature can be obtained more accurately through the four correction parts.
Further, in some embodiments, this step may include: when the air conditioning circulation state of the target temperature zone is internal circulation, determining that the first correction value and the second correction value are zero; when the air conditioner circulation state of the target temperature is not internal circulation, respectively inquiring a first calibration table and a second calibration table according to the current vehicle speed and the external temperature to obtain a first correction factor and a second correction factor, multiplying the first correction factor by a circulation proportion coefficient to obtain a first correction value, and multiplying the second correction factor by the circulation proportion coefficient to obtain a second correction value; calculating a difference value obtained by subtracting the sampling value of the temperature in the vehicle from the average air outlet temperature of the target temperature zone, and inquiring a third calibration table according to the difference value to obtain a third correction value; inquiring a fourth calibration table according to the illumination intensity of the target temperature zone and the current vehicle speed to obtain a sunlight compensation value, inquiring a fifth calibration table according to the temperature outside the vehicle to obtain an external temperature coefficient, and multiplying the sunlight compensation value by the external temperature coefficient to obtain a fourth correction value.
That is, for the correction of the vehicle exterior temperature to the vehicle interior temperature, if the air conditioning cycle state of the target temperature zone is the internal cycle, the correction is 0, and if the air conditioning cycle state is the non-internal cycle, the correction is obtained by searching a first calibration table according to the vehicle exterior temperature and the current vehicle speed to obtain a first correction factor and multiplying the first correction factor by a cycle scale factor. The first calibration table records correction factors of working conditions consisting of different vehicle exterior temperatures and different vehicle speeds on the vehicle interior temperatures.
And similarly, if the air conditioning circulation state of the target temperature zone is internal circulation, the correction is 0, and if the air conditioning circulation state is not internal circulation, the correction is obtained by inquiring a second calibration table according to the external temperature and the current vehicle speed to obtain a second correction factor and multiplying the second correction factor by a circulation proportion coefficient. The second calibration table records correction factors for the head temperature under the working conditions consisting of different outside temperatures and different vehicle speeds. When the intake air in the target temperature zone does not pass through the circulation damper, the correction of the vehicle exterior temperature to the vehicle interior temperature in the target temperature zone is 0, and the correction of the vehicle exterior temperature to the head temperature of the target temperature is also 0.
And correcting the head temperature according to the air outlet temperature, and inquiring a third calibration table according to the difference value obtained by subtracting the sampling value of the temperature in the vehicle from the average air outlet temperature of the target temperature zone, wherein the average air outlet temperature of the target temperature zone can be obtained according to the air outlet temperature of each air outlet. Generally, the air outlet of the air conditioning system includes a blowing window air outlet, a blowing face air outlet and a blowing foot air outlet, so the average air outlet temperature can be obtained by weighting calculation based on the air outlet temperature of the blowing window air outlet, the air outlet temperature of the blowing face air outlet, the air outlet temperature of the blowing foot air outlet, and the corresponding blowing window proportion, blowing face proportion and blowing foot proportion. Thus, the average air outlet temperature weighted according to the blowing window proportion, the blowing surface proportion and the blowing foot proportion can be calculated. The third calibration table records correction values of different temperature differences to the head temperature, wherein the temperature differences are obtained by subtracting the sampling value of the temperature in the vehicle from the average air outlet temperature of the target temperature zone. Therefore, the correction of the temperature of the head by the temperature of the air outlet can be obtained by inquiring the third calibration table.
And correcting the head temperature according to illumination, wherein the head temperature is obtained by multiplying the sunlight compensation value and the external temperature coefficient. The sunlight compensation value is obtained by inquiring a fourth calibration table according to the illumination intensity of the target temperature area and the current vehicle speed, and the fourth calibration table records the sunlight compensation value of working conditions consisting of different illumination intensities and different vehicle speeds on the head temperature. The external temperature coefficient is obtained by inquiring a fifth calibration table according to the external temperature of the vehicle, the fifth calibration table records the external temperature coefficients corresponding to different external temperatures of the vehicle, and the range of the external temperature coefficients is 0 to 1. Alternatively, the illumination intensity of the target temperature zone may be the product between the solar oblique factor and the light intensity of the target temperature zone; the solar oblique factor is obtained by inquiring a sixth calibration table according to a solar altitude angle and a vehicle head direction; the solar altitude is obtained based on weather forecast application; the head orientation is obtained based on a navigation system; the light intensity is obtained based on a light intensity sensor. That is, when the method is implemented, the ECU can calculate the illumination intensity of each temperature zone according to the solar altitude angle of weather forecast, the head orientation angle of navigation information and the left and right light intensities fed back by the light intensity sensor. The light intensity here is a sampling value of a light intensity sensor, which generally includes a left light intensity and a right light intensity, and when the light intensity sensor is implemented, a driving side includes a main driving side, a middle left side, three rows of left side and other temperature areas using the left light intensity to participate in the calculation, and a secondary driving side includes a secondary driving side, a middle right side, three rows of right side and other temperature areas using the right light intensity to participate in the calculation. The solar altitude here means the angle between the direction of incidence of sunlight at a certain point on the earth and the ground plane, and is defined as 0 to 90 °. The head orientation angle here characterizes the orientation of the head. When the sun altitude is in a certain interval, if the head orientations are different, the head temperature is also different under the influence of the radiation of the sky curtain, so that the sun oblique illumination coefficient can be obtained by looking up a table according to the sun altitude and the head orientations, and then the influence of the sky curtain on the head temperature under different speeds and different illuminations can be estimated by combining the speeds of the vehicles, and the head temperature is corrected.
In addition, in the embodiment, the current vehicle speed may be obtained from a navigation system; the temperature outside the vehicle can be obtained through detection of an outside temperature sensor, and also can be obtained through weather forecast application; the air outlet temperature of each air outlet can be obtained by detection according to an air outlet temperature sensor arranged at the corresponding air outlet. In addition, for each calibration table, a thermocouple is arranged in the head area of each temperature area, and each correction value is adjusted through real vehicle calibration, so that the corrected head temperature is close to the thermocouple value, and the calibration table is formulated.
And 103, obtaining the head temperature corresponding to the target temperature zone based on the temperature sampling value in the vehicle and the temperature correction value, and controlling the temperature of the target temperature zone based on the head temperature.
The method comprises the following steps: on the basis of discrete in-vehicle temperature sampling values, the temperature sampling values are corrected by utilizing temperature correction values, so that corrected head temperatures are obtained, and then, the ECU uses the corrected head temperatures to control all temperature areas in a closed loop mode, so that the temperature control of all the temperature areas is more accurate.
In some embodiments, this step may be preceded by: and performing first-order low-pass filtering processing on the in-vehicle temperature sampling value to obtain the filtered in-vehicle temperature. The first-order low-pass filtering is also called first-order filtering or first-order inertial filtering, and the algorithm adopts the weighting of the sampling value and the last filtering output value to obtain an effective filtering value, so that the output has feedback effect on the input. Through carrying out first order low pass filter processing to the temperature sampling value in the car, can filter the noise in the acquisition signal of target temperature sensor, improve the measurement accuracy of temperature in the car, be favorable to promoting the accurate control to each temperature zone temperature. In addition, the ECU may also perform a first order low pass filter process on the sampled values of the sensors for the remaining sensor parameters referred to in step 102.
Further, in some embodiments, the obtaining the head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value in this step may include: and adding the filtered temperature in the vehicle and the temperature correction value, and determining the added value as the head temperature corresponding to the target temperature zone. That is, the head temperature corresponding to the target temperature zone can be obtained by adding the filtered in-vehicle temperature and the calculated temperature correction value. Thus, the calculated head temperature is more truly representative of the actual temperature of the corresponding temperature zone.
According to the method, the temperature sampling value in the vehicle is obtained through the target temperature sensor arranged in the central position in the vehicle, the temperature correction value corresponding to the target temperature zone is determined according to the current vehicle speed, the temperature outside the vehicle and the air conditioning circulation state, the air outlet temperature and the illumination intensity of the target temperature zone, then the temperature sampling value in the vehicle is corrected based on the temperature correction value, the head temperature of the target temperature zone is obtained, and the temperature of the target temperature zone is controlled accordingly. Therefore, the accuracy of temperature control of each temperature zone is improved while the cost of the temperature sensor in the vehicle is reduced.
For a more detailed description of the solution of the present application, a specific embodiment is described below:
the embodiment provides an in-vehicle temperature correction scheme of an in-vehicle multi-temperature-zone air conditioner. In the scheme of the embodiment, the temperature sensor in the vehicle is arranged at the central position in the vehicle, and the sampling value is corrected to the head temperature of each temperature zone through algorithm correction, so that independent closed-loop control of multiple temperature zones is realized. The workflow of this scheme is shown in fig. 2, comprising:
s201, acquiring an in-vehicle temperature sampling value detected by an in-vehicle temperature sensor;
s202, performing first-order low-pass filtering processing on an in-vehicle temperature sampling value to obtain a filtered in-vehicle temperature;
s203, acquiring the current speed, the temperature outside the vehicle, the temperature of the air outlet and the illumination intensity through other sensors on the whole vehicle;
s204, performing first-order low-pass filtering processing on the acquired sampling values of other sensors;
s205, respectively calculating and obtaining the correction of the temperature outside the vehicle to the temperature inside the vehicle, the correction of the temperature outside the vehicle to the temperature at the head, the correction of the temperature at the air outlet to the temperature at the head and the correction of the illumination to the temperature at the head;
the method comprises the steps of aiming at the correction of the temperature in the vehicle to the temperature outside the vehicle, setting the correction to 0 when the air conditioning circulation state of a target temperature zone is internal circulation or the air inlet of the target temperature zone does not pass through a circulation air door, obtaining a first correction factor according to the temperature outside the vehicle and the vehicle speed lookup table 1 when the air conditioning circulation state of the target temperature zone is not internal circulation, multiplying the first correction factor by a circulation proportion coefficient to obtain a lookup table of the correction factor of the temperature outside the vehicle to the temperature inside the vehicle, wherein the table 1 is shown as follows:
table 1 lookup table of correction factors of external temperature to internal temperature
For the correction of the temperature of the head part by the temperature outside the vehicle, when the air conditioning circulation state of the target temperature area is internal circulation or the air inlet of the target temperature area does not pass through the circulation air door, the correction is 0, when the air conditioning circulation state of the target temperature area is not internal circulation, the correction is obtained according to the temperature outside the vehicle and the vehicle speed lookup table 2, and then the correction is obtained by multiplying the circulation proportion coefficient by the second correction factor, and the table 2 is a lookup table of the correction factors of the temperature outside the vehicle to the head temperature, and the table is as follows:
table 2 lookup table of correction factor of external temperature to head temperature
For the correction of the air outlet temperature to the head temperature, the weighted average air outlet temperature is calculated according to the following formula:
T diff ＝T windshield *ω windshield +T panel *ω panel +T floor *ω floor
wherein T is diff The average air outlet temperature; t (T) windshield The temperature of the air outlet of the blowing window; t (T) panel The air outlet temperature is the air outlet temperature of the air outlet of the blowing face; t (T) floor The temperature of the air outlet of the foot blowing air outlet is the air outlet temperature of the foot blowing air outlet; omega windshield Is the proportion of blowing window; omega panel The proportion of the blowing surface is; omega floor Is the foot blowing proportion. Calculating the temperature difference value obtained by subtracting the sampling value of the temperature in the vehicle from the average air-out temperature, finally, if the air-conditioning circulation state of the target temperature zone is internal circulation, obtaining the correction of the air-out temperature to the head temperature according to the temperature difference value lookup table 3, and if the air-conditioning circulation state of the target temperature zone is external circulation, obtaining the air-out temperature pair according to the temperature difference value lookup table 4Correcting the temperature of the head;
table 3 is a lookup table for correction of the head temperature by the outlet air temperature in the internal circulation state, and the contents of the table are as follows:
TABLE 3 lookup table for correcting head temperature by exhaust temperature in internal circulation state
Table 4 is a lookup table for correction of the head temperature by the outlet air temperature in the external circulation state, and the contents of the table are as follows:
TABLE 4 lookup table for correcting head temperature by exhaust temperature in external circulation state
For correction of head temperature by illumination, the correction is obtained by obtaining a sunlight compensation value according to illumination intensity of a target temperature area and a vehicle speed lookup table 5 and multiplying the sunlight compensation value by an external temperature coefficient, wherein the illumination intensity is calculated according to a sun altitude angle of weather forecast, a head orientation angle of navigation information and left and right light intensity, and table 5 is a lookup table of the sunlight compensation value for head temperature, wherein for convenience in display, the light intensity is obtained by converting a numerical value acquired by a light intensity sensor into a percentage, and the table comprises the following contents:
table 5, look-up table of sunlight vs. internal temperature correction value
The external temperature coefficient can be obtained by looking up table 6, table 6 is a look-up table of external temperature coefficients, and the contents of the table are as follows:
table 6 lookup table of external temperature coefficient
S206, calculating to obtain the head temperature of the target temperature zone;
wherein, the head temperature of the target temperature zone=the filtered vehicle interior temperature+the correction of the vehicle exterior temperature to the vehicle interior temperature/2+the correction of the vehicle exterior temperature to the head temperature/2+the correction of the air outlet temperature to the head temperature+the correction of the illumination to the head temperature;
s207, performing temperature control on the target temperature zone by using the calculated head temperature.
According to the scheme, one in-vehicle temperature sensor can be reduced, meanwhile, the internal temperature is corrected according to other sensor parameters of the whole vehicle to be corrected to be the head temperature of each temperature zone, and the corrected head temperature is used for controlling each temperature zone in a closed loop mode, so that the purpose of accurate control is achieved; and the influence of the backdrop on the head temperature under different speeds and different illuminations is estimated and corrected through the correction of the speed and the sunshine compensation, so that the control accuracy is improved.
Corresponding to the embodiments of the foregoing method, the present application further provides embodiments of a temperature control device and a terminal to which the temperature control device is applied:
as shown in fig. 3, fig. 3 is a block diagram of a temperature control device according to an embodiment of the present application, where the device includes:
an acquisition module 31, configured to acquire an in-vehicle temperature sampling value detected by a target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle;
the determining module 32 is configured to determine a temperature correction value corresponding to the target temperature area according to a current vehicle speed, an external temperature, an air conditioning circulation state of the target temperature area, an air outlet temperature and an illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle;
and the control module 33 is configured to obtain a head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value, and perform temperature control on the target temperature zone based on the head temperature.
The implementation process of the functions and roles of each module in the above device is specifically shown in the implementation process of the corresponding steps in the above method, and will not be described herein again.
The application further provides an electronic device, please refer to fig. 4, and fig. 4 is a block diagram of an electronic device according to an embodiment of the application. The electronic device may include a processor 410, a communication interface 420, a memory 430, and at least one communication bus 440. Wherein the communication bus 440 is used to enable direct connection communication of these components. The communication interface 420 of the electronic device in the embodiment of the present application is used for performing signaling or data communication with other node devices. The processor 410 may be an integrated circuit chip with signal processing capabilities.
The processor 410 may be a general-purpose processor, including a central processing unit (CPU, central Processing Unit), a network processor (NP, network Processor), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 410 may be any conventional processor or the like.
The Memory 430 may be, but is not limited to, random access Memory (RAM, random Access Memory), read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable Read Only Memory (EEPROM, electric Erasable Programmable Read-Only Memory), and the like. The memory 430 has stored therein computer readable instructions which, when executed by the processor 410, can cause the electronic device to perform the steps described above in relation to the method embodiment of fig. 1.
Optionally, the electronic device may further include a storage controller, an input-output unit.
The memory 430, the memory controller, the processor 410, the peripheral interface, and the input/output unit are electrically connected directly or indirectly to each other to realize data transmission or interaction. For example, the elements may be electrically coupled to each other via one or more communication buses 440. The processor 410 is configured to execute executable modules stored in the memory 430, such as software functional modules or computer programs included in the electronic device.
The input-output unit is used for providing the user with the creation task and creating the starting selectable period or the preset execution time for the task so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
It will be appreciated that the configuration shown in fig. 4 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 4, or have a different configuration than shown in fig. 4. The components shown in fig. 4 may be implemented in hardware, software, or a combination thereof.
The embodiment of the application further provides a storage medium, where instructions are stored, and when the instructions run on a computer, the computer program is executed by a processor to implement the method described in the method embodiment, so that repetition is avoided, and no further description is given here.
The present application also provides a computer program product which, when run on a computer, causes the computer to perform the method of the method embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A method of controlling temperature, comprising:
acquiring an in-vehicle temperature sampling value detected by a target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle;
determining a temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state of the target temperature zone, the air outlet temperature and the illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle;
and obtaining the head temperature corresponding to the target temperature zone based on the temperature sampling value in the vehicle and the temperature correction value, and controlling the temperature of the target temperature zone based on the head temperature.
2. The method of claim 1, wherein the temperature correction values for the target temperature zone include a first correction value, a second correction value, a third correction value, and a fourth correction value; the first correction value characterizes the correction of the temperature outside the vehicle to the temperature in the vehicle of the target temperature zone; the second correction value represents correction of the head temperature of the target temperature zone by the temperature outside the vehicle; the third correction value characterizes the correction of the temperature of the head of the target temperature zone by the air outlet temperature; the fourth correction value characterizes a correction of the head temperature of the target temperature zone by the illumination.
3. The method according to claim 2, wherein determining the temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, and the air conditioning cycle state, the air outlet temperature, and the illumination intensity of the target temperature zone comprises:
when the air conditioning circulation state of the target temperature zone is internal circulation, determining that the first correction value and the second correction value are zero; when the air conditioner circulation state of the target temperature is not internal circulation, respectively inquiring a first calibration table and a second calibration table according to the current vehicle speed and the external temperature to obtain a first correction factor and a second correction factor, multiplying the first correction factor by a circulation proportion coefficient to obtain a first correction value, and multiplying the second correction factor by the circulation proportion coefficient to obtain a second correction value;
calculating a difference value obtained by subtracting the sampling value of the temperature in the vehicle from the average air outlet temperature of the target temperature zone, and inquiring a third calibration table according to the difference value to obtain a third correction value;
inquiring a fourth calibration table according to the illumination intensity of the target temperature zone and the current vehicle speed to obtain a sunlight compensation value, inquiring a fifth calibration table according to the temperature outside the vehicle to obtain an external temperature coefficient, and multiplying the sunlight compensation value by the external temperature coefficient to obtain a fourth correction value.
4. A method according to claim 3, wherein the average air outlet temperature is calculated by weighting based on the air outlet temperature of the blowing window air outlet, the air outlet temperature of the blowing face air outlet, the air outlet temperature of the blowing foot air outlet, and the corresponding blowing window ratio, blowing face ratio and blowing foot ratio.
5. A method according to claim 3, wherein the illumination intensity of the target temperature zone is the product between the solar-solar coefficient and the light intensity of the target temperature zone; the solar oblique factor is obtained by inquiring a sixth calibration table according to a solar altitude angle and a vehicle head direction; the solar altitude is obtained based on weather forecast application; the head orientation is obtained based on a navigation system; the light intensity is obtained based on a light intensity sensor.
6. The method according to claim 1, wherein before obtaining the head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value, the method comprises:
and performing first-order low-pass filtering processing on the in-vehicle temperature sampling value to obtain the filtered in-vehicle temperature.
7. The method of claim 6, wherein the obtaining the head temperature corresponding to the target temperature zone based on the in-vehicle temperature sampling value and the temperature correction value comprises:
and adding the filtered temperature in the vehicle and the temperature correction value, and determining the added value as the head temperature corresponding to the target temperature zone.
8. A temperature control apparatus, comprising:
the acquisition module is used for acquiring the temperature sampling value in the vehicle detected by the target temperature sensor; the target temperature sensor is arranged at the central position in the vehicle;
the determining module is used for determining a temperature correction value corresponding to the target temperature zone according to the current vehicle speed, the temperature outside the vehicle, the air conditioning circulation state of the target temperature zone, the air outlet temperature and the illumination intensity; the target temperature zone is any one of at least two temperature zones divided by the space in the vehicle;
and the control module is used for obtaining the head temperature corresponding to the target temperature zone based on the temperature sampling value in the vehicle and the temperature correction value, and controlling the temperature of the target temperature zone based on the head temperature.
9. A computer readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, implements the method according to any of claims 1 to 7.
10. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 7 when the computer program is executed by the processor.
CN202311672226.1A 2023-12-06 2023-12-06 Temperature control method, device, storage medium and equipment Pending CN117485095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311672226.1A CN117485095A (en) 2023-12-06 2023-12-06 Temperature control method, device, storage medium and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311672226.1A CN117485095A (en) 2023-12-06 2023-12-06 Temperature control method, device, storage medium and equipment

Publications (1)

Publication Number Publication Date
CN117485095A true CN117485095A (en) 2024-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN117485095A (en)

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