CN114379309A - Automobile air conditioner control method and automobile - Google Patents
Automobile air conditioner control method and automobile Download PDFInfo
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- CN114379309A CN114379309A CN202011134736.XA CN202011134736A CN114379309A CN 114379309 A CN114379309 A CN 114379309A CN 202011134736 A CN202011134736 A CN 202011134736A CN 114379309 A CN114379309 A CN 114379309A
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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
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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
- 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
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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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
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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
- B60H1/00814—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile air conditioner control, and discloses an automobile air conditioner control method and an automobile, wherein the method comprises the following steps: after the automobile air conditioner is started, if the first time difference is smaller than or equal to the preset time length, determining the initial temperature in the first automobile according to the first time difference, the historical temperature in the automobile and a first preset temperature model; determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and a second preset temperature model; determining the current in-vehicle initial temperature according to the first in-vehicle initial temperature and the second in-vehicle initial temperature; determining the real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model; and controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the first automobile. According to the invention, the real-time temperature in the first vehicle can be determined without mounting a temperature sensor on the vehicle, and the adjusting parameter of the vehicle air conditioner is controlled according to the real-time temperature, so that the stability and the accuracy of the vehicle air conditioner for controlling the temperature in the vehicle are improved.
Description
Technical Field
The invention relates to the technical field of automobile air conditioner control, in particular to an automobile air conditioner control method and an automobile.
Background
In the automatic air conditioning control system of the automobile, an air conditioning controller automatically adjusts the climate environment in the automobile according to the outside climate condition and the signals in the carriage detected by the temperature and humidity sensors, so that the temperature and the air volume in the automobile are maintained at comfortable levels. The temperature sensor in the automobile is an important unit in the current automatic air-conditioning control system of the automobile. The scheme in the prior art has the following defects: the temperature sensor and the attached wire harness are arranged in the automobile, so that the cost of the whole automobile is increased; if the temperature sensor is not installed, the temperature in the automobile cannot be accurately acquired, so that the stability and the accuracy of the automobile air conditioner for controlling the temperature in the automobile are not high.
Disclosure of Invention
The embodiment of the invention provides an automobile air conditioner control method and an automobile, which can accurately acquire the real-time temperature in the automobile without installing a temperature sensor in the automobile, and improve the stability and the accuracy of the automobile air conditioner for controlling the temperature in the automobile.
A control method of an automobile air conditioner comprises the following steps:
acquiring a first time difference after the automobile air conditioner is started; the first time difference is the difference between the time point when the automobile air conditioner is started and the historical time point when the automobile air conditioner stops working last time;
when the first time difference is smaller than or equal to a preset time length, obtaining the historical temperature in the vehicle, and determining the initial temperature in the first vehicle according to the first time difference, the historical temperature in the vehicle and a first preset temperature model; the historical temperature in the automobile refers to the temperature in the automobile at the historical time point;
determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and a second preset temperature model;
determining the current in-vehicle initial temperature according to the first in-vehicle initial temperature and the second in-vehicle initial temperature;
determining real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model;
and controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the first automobile.
An automobile comprises a controller for executing the automobile air conditioner control method.
According to the automobile air conditioner control method and the automobile, the first time difference is obtained after the automobile air conditioner is started; the first time difference is the difference between the time point when the automobile air conditioner is started and the historical time point when the automobile air conditioner stops working last time; when the first time difference is smaller than or equal to a preset time length, obtaining the historical temperature in the vehicle, and determining the initial temperature in the first vehicle according to the first time difference, the historical temperature in the vehicle and a first preset temperature model; the historical temperature in the automobile refers to the temperature in the automobile at the historical time point; determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and a second preset temperature model; determining the current in-vehicle initial temperature according to the first in-vehicle initial temperature and the second in-vehicle initial temperature; determining real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model; and controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the first automobile. According to the method, the temperature sensor does not need to be mounted on the automobile to determine the real-time temperature in the automobile, but the real-time temperature in the first automobile is determined according to the first time difference, the historical temperature in the automobile, the preset temperature models (including the first preset temperature model, the second preset temperature model and the third preset temperature model, and the three preset temperature models are constructed according to different model parameters) and the like, and then the adjusting parameter of the automobile air conditioner is controlled according to the real-time temperature in the first automobile.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is a flow chart of a method for controlling an air conditioner of a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a real-time temperature variation curve in a vehicle after a vehicle air conditioner stops operating according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a real-time temperature variation curve in a vehicle after an air conditioner of the vehicle starts to operate according to an embodiment of the present invention.
FIG. 4 is a flowchart of a method for controlling an air conditioner of a vehicle according to another embodiment of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a control method of an automobile air conditioner, which comprises the following steps of S10-S60 as shown in figure 1:
s10, acquiring a first time difference after the automobile air conditioner is started; the first time difference is the difference between the time point when the automobile air conditioner is started and the historical time point when the automobile air conditioner stops working last time; the starting time point (including specific date and time) of the automobile air conditioner can be directly obtained from a vehicle multimedia terminal (the vehicle multimedia terminal is an important interface for interaction between people and an automobile), and can also be obtained from an automobile instrument or any other module with a clock in the automobile; furthermore, the time point of the starting of the automobile air conditioner can also be obtained from a time module in the appointed server through a network. And the historical time point of the last stop of the automobile air conditioner is synchronously stored in the preset storage area of the automobile when the automobile air conditioner stops. In this step, after the vehicle air conditioner is started, a time point of starting the vehicle air conditioner is immediately obtained in real time, and in a specific embodiment, the time point of starting the vehicle air conditioner, which is sent by a vehicle multimedia terminal through a CAN (Controller Area Network) message, is received through an air conditioner Controller. In this embodiment, the vehicle multimedia terminal itself has a clock module, and also has a function of synchronizing time with a time module of a designated server through a network (through communication methods such as traffic and WIFI); therefore, the automobile can time according to the clock module of the automobile, and the time of the clock module of the automobile can be regularly calibrated through the function of synchronizing the time with the time module of the designated server.
Understandably, in the embodiment, after the time point of starting the automobile air conditioner is obtained through the air conditioner controller, the time point is compared with the recorded historical time point of the last time when the air conditioner stops working, and then the first time difference is obtained; if the first time difference is greater than or equal to the preset time length (the preset time length can be obtained according to an actual test result), the time for stopping the automobile air conditioner is considered to be long enough, and the real-time temperature in the automobile is consistent with the ambient temperature, that is, when the first time difference is greater than or equal to the preset time length, the current ambient temperature can be set as the current initial temperature in the automobile. On the contrary, if the first time difference is smaller than the preset time length, the real-time temperature in the vehicle is not considered to be changed to be consistent with the ambient temperature, and then the first real-time temperature in the vehicle is calculated through the subsequent steps S20-S50. S20, when the first time difference is smaller than or equal to a preset time length, obtaining the historical temperature in the vehicle, and determining the initial temperature in the first vehicle according to the first time difference, the historical temperature in the vehicle and a first preset temperature model; the in-vehicle historical temperature refers to the in-vehicle temperature of the automobile at the historical time point. Understandably, in this step, the first vehicle interior initial temperature may be calculated according to the first ambient temperature, the first sunlight intensity, the vehicle interior historical temperature, the first time difference and other signals when the vehicle air conditioner stops working last time.
Further, step S20 is preceded by: and acquiring a first preset temperature model, wherein the first preset temperature model is an in-vehicle temperature calculation model constructed according to first model parameters, and the first model parameters are determined according to the first environment temperature and the first sunlight intensity of the historical time point. The first environment temperature refers to the real-time temperature of the environment where the automobile is located at the historical time point; the first solar intensity is the solar intensity of the environment in which the vehicle is located at the historical time point (solar intensity is the intensity of direct solar radiation and indirect radiation from all over the earth's surface that reaches the surface of the vehicle). That is, in this embodiment, first, the first model parameter may be determined according to the first ambient temperature and the first sunlight intensity at the historical time point at which the vehicle air conditioner last stopped operating; and then, a first preset temperature model is built according to the first model parameters, and then the first time difference and the historical temperature in the vehicle are input into the first preset temperature model, so that the initial temperature in the first vehicle can be obtained.
Preferably, the first preset temperature model is:
Tin_start1＝a1*exp(-b1*t1+c1)+Tin_stop
wherein Tin _ start1 is the initial temperature in the first vehicle; a1, b1 and c1 are all first model parameters; exp () refers to an exponential operation function with a natural number e as the base; t1 is the first time difference; tin _ stop is the in-vehicle historical temperature. Understandably, in the present invention, the values of the first model parameters a1, b1, and c1 may be obtained by performing an environmental cabin experiment (the environmental temperature in the environmental cabin experiment is the first environmental temperature, and the sunlight intensity thereof is the first sunlight intensity) according to the specific model of the automobile, and then performing verification and determination through a road experiment (the environmental temperature in the road experiment is the first environmental temperature, and the sunlight intensity thereof is the first sunlight intensity). S30, determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and a second preset temperature model; understandably, in this step, the second in-vehicle initial temperature may be calculated according to the second ambient temperature when the vehicle air conditioner is turned on, the second sunlight intensity, the in-vehicle historical temperature, the first time difference, and other signals.
Further, step S30 is preceded by: and acquiring a second preset temperature model, wherein the second preset temperature model is an in-vehicle temperature calculation model constructed according to second model parameters, and the second model parameters are determined according to a second ambient temperature and a second sunlight intensity when the automobile air conditioner is started. The second environment temperature refers to the real-time temperature of the environment where the automobile is located when the automobile air conditioner is started; the second sunlight intensity is the sunlight intensity of the environment where the automobile is located when the automobile air conditioner is turned on.
That is, in this embodiment, first, the second model parameter may be determined according to the second ambient temperature and the second sunlight intensity when the vehicle air conditioner is turned on; and then, a second preset temperature model is built according to the second model parameters, and then the first time difference and the historical temperature in the vehicle are input into the second preset temperature model, so that the second initial temperature in the vehicle can be obtained.
Preferably, the second preset temperature model is:
Tin_start2＝a2*exp(-b2*t1+c2)+Tin_stop
wherein Tin _ start2 is a second in-vehicle initial temperature; a2, b2 and c2 are all second model parameters; exp () refers to an exponential operation function with a natural number e as the base; t1 is the first time difference; tin _ stop is the in-vehicle historical temperature. Understandably, in the present invention, the values of the second model parameters a2, b2, and c2 may be obtained by performing an environmental cabin experiment (the environmental temperature in the environmental cabin experiment is the second environmental temperature, and the sunlight intensity thereof is the second sunlight intensity) according to the specific model of the automobile, and then performing verification and determination through a road experiment (the environmental temperature in the road experiment is the second environmental temperature, and the sunlight intensity thereof is the second sunlight intensity).
S40, determining the current in-vehicle initial temperature according to the first in-vehicle initial temperature and the second in-vehicle initial temperature; specifically, the current in-vehicle initial temperature is determined according to the following formula:
Tin_init＝(Tin_start1+Tin_start2)/2
wherein the Tin _ init is the current initial temperature in the vehicle; tin _ start1 is the initial temperature in the first vehicle; tin _ start2 is the second in-vehicle initial temperature. That is, the current in-vehicle initial temperature is an average of the first in-vehicle initial temperature and the second in-vehicle initial temperature.
S50, determining the real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model; specifically, in this step, the real-time temperature in the first vehicle may be determined according to the air outlet parameter of the vehicle air conditioner, the first time difference, the current initial temperature in the vehicle, and the like; the air outlet parameters of the automobile air conditioner include, but are not limited to, air outlet volume, air outlet temperature, opening of a circulating air duct and other factors which affect the temperature regulation of the air conditioner. The air outlet volume refers to the volume of air blown out of the automobile air conditioner; the air outlet temperature refers to the temperature of air blown out of the automobile by an automobile air conditioner; the opening of the circulating air door refers to the proportion of air outside the automobile to air inside the automobile in the air used in the air inlet quantity of the automobile air conditioner.
In an embodiment, the step S50 is preceded by: and acquiring a third preset temperature model, wherein the third preset temperature model is an in-vehicle temperature calculation model constructed according to third model parameters, and the third model parameters are determined according to a second ambient temperature and a second sunlight intensity when the automobile air conditioner is started and initial air outlet parameters when the automobile air conditioner is started. The second environment temperature refers to the real-time temperature of the environment where the automobile is located when the automobile air conditioner is started; the second sunlight intensity is the sunlight intensity of the environment where the automobile is located when the automobile air conditioner is turned on. Understandably, the initial air outlet parameters of the vehicle air conditioner include, but are not limited to, the initial air outlet volume, the initial air outlet temperature, the initial circulating air opening degree and other factors that affect the air temperature regulation.
That is, in this embodiment, first, the third model parameter may be determined according to the initial air outlet parameter when the vehicle air conditioner is turned on, and the second ambient temperature and the second sunlight intensity when the vehicle air conditioner is turned on; and then, a third preset temperature model is built according to the third model parameters, and then the first time difference and the current in-vehicle initial temperature are input into the third preset temperature model, so that the first in-vehicle real-time temperature can be obtained.
Preferably, the third preset temperature model is:
tin _ cur1 ═ a3 × exp (-b3 × t1+ c3) + Tin _ init, wherein Tin _ cur1 is the first in-vehicle real-time temperature; a3, b3 and c3 are all third model parameters; exp () refers to an exponential operation function with a natural number e as the base; t1 is the first time difference; and the Tin _ init is the current initial temperature in the vehicle. Understandably, in the present invention, the values of the third model parameters a3, b3, and c3 may be obtained by performing an environmental cabin experiment (the environmental temperature in the environmental cabin experiment is the second environmental temperature, and the sunlight intensity thereof is the second sunlight intensity, and in the environmental cabin experiment, the vehicle air conditioner continuously operates with the initial air-out parameter) according to the specific vehicle type of the vehicle, and then performing verification and determination by using a road experiment (the environmental temperature in the road experiment is the second environmental temperature, and the sunlight intensity thereof is the second sunlight intensity, and in the road experiment, the vehicle air conditioner continuously operates with the initial air-out parameter).
Further, before the step S50, the method further includes: and when the first time difference is greater than or equal to a preset time length, setting the current environment temperature as the current in-vehicle initial temperature. That is, if the first time difference is greater than or equal to a preset time length (the preset time length T may be obtained according to an actual experiment result, specifically, the preset time length may be verified and determined in the above-described processes of performing the environmental warehouse experiment and the road experiment), it is considered that the time during which the vehicle air conditioner stops working is long enough, and the real-time temperature in the vehicle is consistent with the environmental temperature, that is, when the first time difference is greater than or equal to the preset time length, the current environmental temperature may be set as the current initial temperature in the vehicle.
And S60, controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the first automobile. That is, in the present invention, after the vehicle air conditioner is turned on and the real-time temperature in the first vehicle in the vehicle is determined, the adjustment parameter of the vehicle air conditioner needs to be controlled according to the real-time temperature in the first vehicle; that is, the vehicle air conditioner is controlled to perform air conditioner related control, including cold and warm air conditioner opening control, air outlet mode control, circulating air conditioner opening control, air outlet volume control, compressor control, PTC control, condensing fan control, and the like.
Further, the step S60 is followed by: when the automobile air conditioner stops working, recording the time point when the automobile air conditioner stops working as a new historical time point, and recording the real-time temperature in the automobile when the automobile air conditioner stops working as a new historical temperature in the automobile associated with the new historical time point. That is, in step S10, when the vehicle air conditioner stops after the vehicle air conditioner is turned on (the stop of the vehicle air conditioner includes a state where the user controls the vehicle air conditioner to stop working or the vehicle is turned off because the vehicle air conditioner stops working synchronously when the vehicle is turned off), the current real-time temperature in the vehicle and the time point when the vehicle air conditioner stops working are recorded by the air conditioner controller, and the time point when the vehicle air conditioner stops working is taken as a new historical time point when the vehicle air conditioner is turned on again in step S10; and the in-vehicle real-time temperature when the vehicle air conditioner stops working is used as a new in-vehicle historical temperature associated with the new historical time point when the vehicle air conditioner is started again in the step S10, so as to be a calculation basis for calculating the in-vehicle real-time temperature when the vehicle air conditioner is started again.
As can be understood, fig. 2 and 3 are schematic diagrams of real-time temperature variation curves in a vehicle. After the vehicle air conditioner stops working, the change of the real-time temperature in the vehicle (i.e. the change curve between the indoor temperature and the ambient temperature when the air conditioner stops working shown in fig. 2) is related to the ambient temperature, the sunlight intensity and the time for which the vehicle air conditioner stops working; after the vehicle air conditioner starts to work, the change of the real-time temperature in the vehicle (i.e. the change curve between the initial indoor temperature when the air conditioner starts to work and the balanced temperature in the vehicle as shown in fig. 3) is related to the ambient temperature, the sunlight intensity, the air outlet temperature, the air outlet volume, the opening of the circulating air duct and the starting time point of the vehicle air conditioner. In the invention, a change relation between parameters related to real-time temperature in the vehicle is found out by combining theory and actual parameters, and the real-time temperature in the vehicle is calculated according to the relation; furthermore, the real-time temperature in the automobile is determined according to the first time difference, the historical temperature in the automobile, the preset temperature models (comprising a first preset temperature model, a second preset temperature model and a third preset temperature model, wherein the three preset temperature models are established according to different model parameters) and the like without installing a temperature sensor on the automobile, and the real-time temperature in the first automobile is determined, so that the adjusting parameters of the automobile air conditioner are controlled according to the real-time temperature in the first automobile.
In an embodiment, as shown in fig. 4, after the step S60, that is, after controlling the adjusting parameter of the vehicle air conditioner according to the real-time temperature in the first vehicle, the method further includes:
s70, monitoring preset temperature influence parameters in real time, wherein the preset temperature influence parameters comprise real-time environment temperature and real-time sunlight intensity of an environment where an automobile is located, and real-time air outlet parameters of the automobile air conditioner; understandably, the real-time air outlet parameters of the automobile air conditioner include, but are not limited to, factors affecting the temperature regulation of the air conditioner, such as real-time air outlet volume, real-time air outlet temperature, and real-time circulating air door opening. That is, in the present invention, after the vehicle air conditioner is turned on and the adjustment parameter of the vehicle air conditioner is controlled according to the calculated real-time temperature in the first vehicle, it is further required to monitor whether the preset temperature-affected parameter changes, where the release of the preset temperature-affected parameter changes includes: any one of the real-time air outlet parameter of the current operation of the automobile air conditioner, the real-time environment temperature of the environment where the automobile is located and the real-time sunlight intensity is changed; and when any one of the parameters changes, the process proceeds to step S80, and it is determined that the preset temperature influencing parameter satisfies the preset temperature updating condition.
S80, when the preset temperature influence parameter is confirmed to meet a preset temperature updating condition, determining the real-time temperature in a second vehicle according to the actual temperature in the first vehicle and a fourth preset temperature model; the fourth preset temperature model is an in-vehicle temperature calculation model constructed according to the preset temperature influence parameters; the preset temperature updating condition comprises the following steps: the real-time ambient temperature is different from the second ambient temperature; or/and the real-time solar intensity is different from the second solar intensity; or/and the real-time air outlet parameter is different from the initial air outlet parameter.
Specifically, in step S80, the determining a second in-vehicle real-time temperature according to the first in-vehicle actual temperature and the fourth preset temperature model includes:
acquiring an updating time point corresponding to the preset temperature influence parameter meeting the preset temperature updating condition;
acquiring a second time difference; the second time difference is a difference value between a real-time point when the automobile air conditioner is in an open state (namely, a time point after the update time point when the automobile air conditioner is in the open state and recorded in real time) and the update time point; that is, after the time point when the current preset temperature influencing parameter changes is taken as the initial updating time point, the first time difference is updated to the second time difference.
And determining the real-time temperature in the second vehicle according to the second time difference, the real-time temperature in the first vehicle and a fourth preset temperature model. That is, in this embodiment, when any one of the preset temperature influencing parameters (the real-time air outlet parameter of the current operation of the vehicle air conditioner, the real-time environment temperature of the environment where the vehicle is located, and the real-time sunlight intensity) changes, the preset temperature updating condition is satisfied, and at this time, the time point when the current preset temperature influencing parameter changes is required to be used as the initial updating time point, so as to update the first time difference to the second time difference. And then, determining the real-time temperature in the second vehicle according to the second time difference, the actual temperature in the first vehicle and the fourth preset temperature model.
In an embodiment, in the step S80, before determining the real-time temperature in the second vehicle according to the actual temperature in the first vehicle and the fourth preset temperature model, the method further includes:
and acquiring a fourth preset temperature model, wherein the fourth preset temperature model is an in-vehicle temperature calculation model constructed according to fourth model parameters, and the fourth model parameters are determined according to the real-time environment temperature and the real-time sunlight intensity of the environment where the automobile is located and the real-time air outlet parameters of the automobile air conditioner. The real-time air outlet parameters of the automobile air conditioner include, but are not limited to, factors influencing air conditioner temperature regulation, such as real-time air outlet volume, real-time air outlet temperature, real-time circulating air valve opening and the like.
That is, in this embodiment, first, the fourth model parameter may be determined according to the real-time ambient temperature and the real-time sunlight intensity of the environment where the automobile is located, and the real-time air outlet parameter of the automobile air conditioner; and then, a fourth preset temperature model is built according to the fourth model parameters, and then the second time difference and the first vehicle interior real-time temperature are input into the fourth preset temperature model, so that the second vehicle interior real-time temperature can be obtained.
Specifically, the fourth preset temperature model is:
Tin_cur2＝a4*exp(-b4*t+c4)+Tin_cur1
wherein Tin _ cur2 is the second in-vehicle real-time temperature; a4, b4 and c4 are all fourth model parameters; exp () refers to an exponential operation function with a natural number e as the base; t2 is a second time difference; tin _ cur1 is the first in-vehicle real-time temperature. Understandably, in the present invention, the values of the fourth model parameters a4, b4, and c4 may be obtained by performing an environmental bin experiment (the environmental temperature in the environmental bin experiment is the real-time environmental temperature, the sunlight intensity is the real-time sunlight intensity, and in the environmental bin experiment, the vehicle air conditioner continuously operates according to the real-time air-out parameter; that is, each parameter in the environmental bin experiment is consistent with a preset temperature influence parameter after the change), and then performing verification and determination by using a road experiment (the environmental temperature in the road experiment is the real-time environmental temperature, the sunlight intensity is the real-time sunlight intensity, and in the road experiment, the vehicle air conditioner continuously operates according to the real-time air-out parameter; that each parameter in the road experiment is consistent with the preset temperature influence parameter after the change).
And S90, controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the second vehicle. That is, after any one of the preset temperature influence parameters (the real-time air outlet parameter of the current operation of the automobile air conditioner, the real-time environment temperature of the environment where the automobile is located, and the real-time sunlight intensity) changes and the real-time temperature in the second vehicle corresponding to the change is determined again, the adjustment parameter of the automobile air conditioner needs to be controlled again according to the real-time temperature in the second vehicle; that is, the vehicle air conditioner is controlled to perform air conditioner related control, including cold and warm air conditioner opening control, air outlet mode control, circulating air conditioner opening control, air outlet volume control, compressor control, PTC control, condensing fan control, and the like. It is understood that after any one of the preset temperature influencing parameters is changed again, the real-time temperature in the third vehicle can be determined again on the basis of the real-time temperature in the second vehicle still with reference to the steps S70-S90, and then the adjusting parameter of the vehicle air conditioner is controlled according to the real-time temperature in the third vehicle, and so on. The invention also provides an automobile comprising a controller for executing the automobile air conditioner control method.
For specific limitations of the controller, reference may be made to the above limitations of the control method of the air conditioner of the vehicle, and details thereof are not repeated herein. The various modules in the controller described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A control method for an automobile air conditioner is characterized by comprising the following steps:
acquiring a first time difference after the automobile air conditioner is started; the first time difference is the difference between the time point when the automobile air conditioner is started and the historical time point when the automobile air conditioner stops working last time;
when the first time difference is smaller than or equal to a preset time length, obtaining the historical temperature in the vehicle, and determining the initial temperature in the first vehicle according to the first time difference, the historical temperature in the vehicle and a first preset temperature model; the historical temperature in the automobile refers to the temperature in the automobile at the historical time point;
determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and a second preset temperature model;
determining the current in-vehicle initial temperature according to the first in-vehicle initial temperature and the second in-vehicle initial temperature;
determining real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model;
and controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the first automobile.
2. The method as claimed in claim 1, wherein before determining the real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third predetermined temperature model, the method further comprises:
and when the first time difference is greater than or equal to a preset time length, setting the current environment temperature as the current in-vehicle initial temperature.
3. The method of claim 1, wherein before determining the first in-vehicle initial temperature based on the first time difference, the in-vehicle historical temperature, and a first predetermined temperature model, further comprising:
and acquiring a first preset temperature model, wherein the first preset temperature model is an in-vehicle temperature calculation model constructed according to first model parameters, and the first model parameters are determined according to the first environment temperature and the first sunlight intensity of the historical time point.
4. The method of claim 1, wherein before determining a second in-vehicle initial temperature based on the first time difference, the in-vehicle historical temperature, and a second predetermined temperature model, further comprising:
and acquiring a second preset temperature model, wherein the second preset temperature model is an in-vehicle temperature calculation model constructed according to second model parameters, and the second model parameters are determined according to a second ambient temperature and a second sunlight intensity when the automobile air conditioner is started.
5. The method as claimed in claim 1, wherein before determining the real-time temperature in the first vehicle according to the first time difference, the current initial temperature in the vehicle and a third predetermined temperature model, the method further comprises:
and acquiring a third preset temperature model, wherein the third preset temperature model is an in-vehicle temperature calculation model constructed according to third model parameters, and the third model parameters are determined according to a second ambient temperature and a second sunlight intensity when the automobile air conditioner is started and initial air outlet parameters when the automobile air conditioner is started.
6. The vehicle air conditioner control method of claim 5, wherein the initial outlet air parameters of the vehicle air conditioner include an initial outlet air volume, an initial outlet air temperature and an initial circulating air opening degree.
7. The method for controlling the air conditioner of the vehicle as claimed in claim 5, further comprising, after controlling the adjusting parameter of the air conditioner of the vehicle according to the real-time temperature in the first vehicle:
monitoring preset temperature influence parameters in real time, wherein the preset temperature influence parameters comprise real-time environment temperature and real-time sunlight intensity of an environment where an automobile is located, and real-time air outlet parameters of the automobile air conditioner;
when the preset temperature influence parameter is confirmed to meet a preset temperature updating condition, determining the real-time temperature in the second vehicle according to the actual temperature in the first vehicle and a fourth preset temperature model; the fourth preset temperature model is an in-vehicle temperature calculation model constructed according to the preset temperature influence parameters; the preset temperature updating condition comprises the following steps: the real-time ambient temperature is different from the second ambient temperature; or/and the real-time solar intensity is different from the second solar intensity; or/and the real-time air outlet parameter is different from the initial air outlet parameter;
and controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the second vehicle.
8. The vehicle air conditioner control method of claim 7, wherein said determining a second in-vehicle real-time temperature based on said first in-vehicle actual temperature and a fourth predetermined temperature model comprises:
acquiring an updating time point corresponding to the preset temperature influence parameter meeting the preset temperature updating condition;
acquiring a second time difference; the second time difference is the difference between the real-time point when the automobile air conditioner is in the starting state and the updating time point;
and determining the real-time temperature in the second vehicle according to the second time difference, the real-time temperature in the first vehicle and a fourth preset temperature model.
9. The method for controlling the air conditioner of the vehicle as claimed in claim 1, further comprising, after controlling the adjusting parameter of the air conditioner of the vehicle according to the real-time temperature in the first vehicle:
when the automobile air conditioner stops working, recording the time point when the automobile air conditioner stops working as a new historical time point, and recording the real-time temperature in the automobile when the automobile air conditioner stops working as a new historical temperature in the automobile associated with the new historical time point.
10. A vehicle characterized by comprising a controller for executing the vehicle air-conditioning control method of any one of claims 1 to 9.
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