CN114379309B - Automobile air conditioner control method and automobile - Google Patents
Automobile air conditioner control method and automobile Download PDFInfo
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- CN114379309B CN114379309B CN202011134736.XA CN202011134736A CN114379309B CN 114379309 B CN114379309 B CN 114379309B CN 202011134736 A CN202011134736 A CN 202011134736A CN 114379309 B CN114379309 B CN 114379309B
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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
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 the first preset temperature model; determining a second in-vehicle initial temperature according to the first time difference, the in-vehicle historical temperature and the second preset temperature model; determining a current vehicle interior initial temperature according to the first vehicle interior initial temperature and the second vehicle interior initial temperature; determining a first real-time temperature in the 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 installing a temperature sensor on the vehicle and the adjusting parameters of the vehicle air conditioner can be controlled according to the real-time temperature, so that the stability and accuracy of the vehicle air conditioner on the temperature control 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 an automatic air-conditioning control system of an automobile, an air-conditioning controller automatically adjusts the climate environment in the automobile according to the external climate condition and signals in a carriage detected by a temperature and humidity sensor, so that the temperature and the air quantity in the automobile are maintained at comfortable levels. And the temperature sensor in the automobile is an important unit in the current automatic air conditioner control system of the automobile. The above scheme in the prior art has the following disadvantages: the temperature sensor and the wire harness attached to the temperature sensor are installed in the automobile, so that the cost of the whole automobile can be increased; if the temperature sensor is not installed, the temperature in the vehicle cannot be accurately obtained, so that the stability and the accuracy of the automobile air conditioner on the temperature control in the vehicle 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 real-time temperature in the automobile without installing a temperature sensor in the automobile, thereby improving the stability and accuracy of the automobile air conditioner on the temperature control in the automobile.
An automotive air conditioner control method, comprising:
after an automobile air conditioner is started, acquiring a first time difference; the first time difference is the difference between the starting time point of the automobile air conditioner and the last historical time point of stopping working;
when the first time difference is smaller than or equal to a preset time length, acquiring 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 is the temperature in the automobile at the historical time point;
determining a second initial temperature in the vehicle according to the first time difference, the historical temperature in the vehicle and a second preset temperature model;
determining a current vehicle interior initial temperature according to the first vehicle interior initial temperature and the second vehicle interior initial temperature;
determining a first in-vehicle real-time temperature according to the first time difference, the current in-vehicle initial temperature 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 includes a controller for executing the automobile air conditioning control method.
According to the automobile air conditioner control method and the automobile, after the automobile air conditioner is started, the first time difference is obtained; the first time difference is the difference between the starting time point of the automobile air conditioner and the last historical time point of stopping working; when the first time difference is smaller than or equal to a preset time length, acquiring 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 is the temperature in the automobile at the historical time point; determining a second initial temperature in the vehicle according to the first time difference, the historical temperature in the vehicle and a second preset temperature model; determining a current vehicle interior initial temperature according to the first vehicle interior initial temperature and the second vehicle interior initial temperature; determining a first in-vehicle real-time temperature according to the first time difference, the current in-vehicle initial temperature 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 automobile is determined without installing a temperature sensor on the automobile, and the real-time temperature in the automobile is determined according to the first time difference, the historical temperature in the automobile, the preset temperature model (comprising a first preset temperature model, a second preset temperature model and a third preset temperature model, and constructed according to different model parameters), and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
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 of a real-time temperature change curve in a vehicle after an air conditioner of the vehicle stops working according to an embodiment of the invention;
fig. 3 is a schematic diagram of a real-time temperature change curve in a vehicle after an air conditioner of the present invention starts to operate.
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 following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an automobile air conditioner control method, which is shown in fig. 1 and comprises the following steps of S10-S60:
s10, after an automobile air conditioner is started, acquiring a first time difference; the first time difference is the difference between the starting time point of the automobile air conditioner and the last historical time point of stopping working; the time point (comprising specific date and time) when the automobile air conditioner is started can be directly obtained from an automobile multimedia terminal (the automobile multimedia terminal is an important interface for human interaction with an automobile), or can be obtained from an automobile instrument or any other module with a clock in the automobile; further, the time point when the air conditioner of the automobile is started can be obtained from a time module in a designated server through a network. The historical time point of the last stop of the automobile air conditioner is synchronously stored in a preset storage area of the automobile when the automobile air conditioner stops working last time. In this step, the time point when the vehicle air conditioner is turned on is immediately obtained in real time after the vehicle air conditioner is turned on, and in a specific embodiment, the time point when the vehicle air conditioner is turned on, which is sent by the vehicle multimedia terminal through a CAN (controller area network ) message, is received through the 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 via a network (via a communication scheme such as traffic and WIFI); in this way, the automobile can time according to the own clock module, and can calibrate the time of the own clock module by the function of synchronizing the time with the time module of the specified server at regular intervals.
Understandably, in this embodiment, after the time point when the air conditioner of the automobile is started is obtained by the air conditioner controller, the time point is compared with the recorded historical time point when the air conditioner stops working last time, so as to obtain a first time difference; if the first time difference is greater than or equal to a preset time period (the preset time period can be obtained according to an actual test result), the time for stopping the operation of 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 period, the current ambient temperature can be set as the current initial temperature in the automobile. If the first time difference is smaller than the preset time length, the real-time temperature in the vehicle is considered to be not changed to be consistent with the ambient temperature, and the real-time temperature in the first vehicle is calculated through the following steps S20-S50. S20, acquiring historical temperature in the vehicle when the first time difference is smaller than or equal to a preset time length, and determining a first initial temperature in the 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. It is understood that in this step, the first vehicle interior initial temperature may be calculated based on the first ambient temperature, the first sunlight intensity, the vehicle interior historical temperature, the first time difference, and the like signals when the vehicle air conditioner was last stopped.
Further, before the step S20, the method further includes: 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 ambient temperature and the first sunlight intensity of the historical time points. 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 refers to the solar intensity of the environment in which the automobile is located at the historic time point (solar intensity refers to the intensity of direct solar radiation and indirect solar radiation everywhere on the earth's surface reaching the automobile surface). 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 when the vehicle air conditioner was last stopped; 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 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 first in-vehicle initial temperature; a1 B1 and c1 are both first model parameters; exp () refers to an exponential-arithmetic function based on a natural number e; t1 is a first time difference; tin_stop is the historical temperature in the vehicle. In the present invention, the first model parameters a1, b1, c1 may be obtained by performing an environmental chamber experiment (the environmental temperature in the environmental chamber 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 initial temperature in the vehicle according to the first time difference, the historical temperature in the vehicle and a second preset temperature model; it is understood that in this step, the second in-vehicle initial temperature may be calculated based on signals such as the second ambient temperature when the vehicle air conditioner is turned on, the second sunlight intensity, the in-vehicle historical temperature, and the first time difference.
Further, before the step S30, the method further includes: obtaining 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 environment temperature and a second sunlight intensity when the automobile air conditioner is started. The second ambient 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 refers to 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 based on 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 the second in-vehicle initial temperature; a2 B2, c2 are both second model parameters; exp () refers to an exponential-arithmetic function based on a natural number e; t1 is a first time difference; tin_stop is the historical temperature in the vehicle. In the present invention, the values of the second model parameters a2, b2, c2 may be obtained by performing an environmental chamber experiment (the environmental temperature in the environmental chamber 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 initial temperature in the vehicle according to the initial temperature in the first vehicle and the initial temperature in the second vehicle; specifically, the current in-vehicle initial temperature is determined according to the following formula:
Tin_init＝(Tin_start1+Tin_start2)/2
wherein tin_init is the current initial temperature in the vehicle; tin_Start1 is the first in-vehicle initial temperature; 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 a first real-time temperature in the vehicle according to the first time difference, the current initial temperature in the vehicle and a third preset temperature model; specifically, in the step, a first real-time temperature in the vehicle may be determined according to an air outlet parameter of the vehicle air conditioner, a 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, factors influencing the air temperature regulation such as the air outlet volume, the air outlet temperature, the opening degree of the circulating air door and the like. The air outlet air quantity refers to the air quantity of the air blown out from the automobile air conditioner; the air outlet temperature refers to the temperature of the air blown out from the vehicle air conditioner; the opening degree of the circulation air door refers to the proportion of the air outside the automobile to the air in the automobile in the air inlet quantity of the automobile air conditioner.
In an embodiment, the step S50 further includes: obtaining 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 environment temperature and a second sunlight intensity when an automobile air conditioner is started and an initial air outlet parameter when the automobile air conditioner is started. The second ambient 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 refers to 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 automotive air conditioner include, but are not limited to, factors that affect the air temperature adjustment, such as initial air outlet volume, initial air outlet temperature, and initial opening of the circulation damper.
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 initial temperature in the vehicle are input into the third preset temperature model, so that the first real-time temperature in the vehicle can be obtained.
Preferably, the third preset temperature model is:
tin_cur1=a3×exp (-b3×t1+c3) +tin_init, where tin_cur1 is the first in-vehicle real-time temperature; a3 B3, c3 are both third model parameters; exp () refers to an exponential-arithmetic function based on a natural number e; t1 is a first time difference; tin_init is the current initial temperature in the vehicle. In the present invention, the third model parameters a3, b3, and c3 may be obtained by performing an environmental chamber experiment (the environmental temperature in the environmental chamber experiment is the second environmental temperature, and the sunlight intensity thereof is the second sunlight intensity, and in the environmental chamber experiment, the vehicle air conditioner continuously operates with the initial air-out parameter) according to the specific model of the vehicle, and then performing verification determination by 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 initial temperature in the current vehicle. That is, if the first time difference is greater than or equal to a preset time period (the preset time period T may be obtained according to an actual experiment result, specifically, the preset time period may be determined by performing verification in the process of performing the environmental cabin experiment and the road experiment, which are described above), the time for which the vehicle air conditioner stops operating is considered to be long enough, and the real-time temperature in the vehicle is already consistent with the environmental temperature, that is, when the first time difference is greater than or equal to the preset time period, the current environmental temperature may be set as the current initial temperature in the vehicle.
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 first in-vehicle real-time temperature in the vehicle is determined, the adjustment parameters of the vehicle air conditioner need to be controlled according to the first in-vehicle real-time temperature; that is, the air conditioner of the automobile is controlled to perform air conditioning related control including cold and warm air door opening control, air outlet mode control, circulating air door opening control, air outlet volume control, compressor control, PTC control, condensing fan control, and the like.
Further, the step S60 further includes: when the automobile air conditioner stops working, recording a 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 is turned on and then the vehicle air conditioner is turned off again (the vehicle air conditioner is turned off including the state in which the user controls the vehicle air conditioner to be turned off or the vehicle is turned off, because it is also indicated that the vehicle air conditioner is simultaneously turned off when the vehicle is turned off), the current real-time temperature in the vehicle and the time point when the vehicle is turned off are recorded by the air conditioner controller, and the time point when the vehicle air conditioner is turned off is taken as the new history time point when the vehicle air conditioner is turned on again in step S10; and taking the real-time temperature in the automobile when the automobile air conditioner stops working as the new historical temperature in the automobile associated with the new historical time point in the step S10 when the automobile air conditioner is restarted, and further calculating the real-time temperature in the automobile when the automobile air conditioner is restarted.
As can be appreciated, the schematic diagram of the real-time temperature change curve in the vehicle can refer to fig. 2 and 3. After the vehicle air conditioner stops working, the real-time temperature change in the vehicle (namely, 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 when the vehicle air conditioner stops working; after the vehicle air conditioner starts to work, the real-time temperature change in the vehicle (namely, the change curve between the initial indoor temperature and the temperature after the balance in the vehicle when the air conditioner starts to work shown in fig. 3) is related to the environmental temperature, the sunlight intensity, the air outlet temperature, the air outlet air volume, the opening degree of a circulating air door and the starting time point of the vehicle air conditioner. In the invention, the change relation between the parameters related to the real-time temperature in the vehicle is found out by combining the theoretical parameters and the actual parameters, and then the real-time temperature in the vehicle is calculated according to the relation; furthermore, the real-time temperature in the automobile is determined without installing a temperature sensor on the automobile, and the real-time temperature in the automobile is determined according to a first time difference, an in-automobile historical temperature, a preset temperature model (comprising a first preset temperature model, a second preset temperature model and a third preset temperature model, and three preset temperature models are constructed according to different model parameters), and then the adjusting parameters of the air conditioner of the automobile 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 adjustment parameters of the 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 an automobile air conditioner; understandably, the real-time air outlet parameters of the automobile air conditioner include, but are not limited to, factors influencing the air temperature adjustment 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 parameters of the vehicle air conditioner are controlled according to the calculated first in-vehicle real-time temperature, it is further required to monitor whether the preset temperature influence parameters change, and the release of the preset temperature influence parameters change includes: any one of the real-time air outlet parameter of the current running 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 step S80 is performed to confirm that the preset temperature influence parameter meets the preset temperature update condition.
S80, when the preset temperature influence parameter is confirmed to meet a preset temperature updating condition, determining a second real-time temperature in the vehicle according to the first real-time temperature 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 update condition includes: the real-time ambient temperature is different from the second ambient temperature; or/and the real-time sunlight intensity is different from the second sunlight intensity; or/and the real-time air outlet parameter is different from the initial air outlet parameter.
Specifically, in the step S80, the determining, according to the first in-vehicle actual temperature and the fourth preset temperature model, the second in-vehicle real-time temperature includes:
acquiring an update time point corresponding to the preset temperature influence parameter meeting the preset temperature update condition;
acquiring a second time difference; the second time difference is a difference between a real-time point when the automobile air conditioner is in an on state (i.e. a time point when the automobile air conditioner is in an on state and recorded in real time after the time point is updated) and the updated time point; that is, after the time point when the current preset temperature influence parameter is changed is taken as the initial updating time point, the first time difference is updated to the second time difference.
And determining a second real-time temperature in the vehicle according to the second time difference, the first real-time temperature in the vehicle and a fourth preset temperature model. That is, in this embodiment, when any one of preset temperature influence parameters (a real-time air outlet parameter of a current operation of an automobile air conditioner, a real-time environmental temperature of an environment in which the automobile is located, and a real-time sunlight intensity) changes, the preset temperature update condition is satisfied, and at this time, a time point when the current preset temperature influence parameter changes is required to be taken as an initial update time point, and the first time difference is updated to be the second time difference. Further, a second in-vehicle real-time temperature is determined based on the second time difference, the first in-vehicle actual temperature, and a fourth preset temperature model.
In an embodiment, in the step S80, before determining the second real-time temperature in the vehicle according to the first real-time temperature and the fourth preset temperature model, the method further includes:
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 comprise, but are not limited to, factors influencing the air temperature regulation, such as real-time air outlet volume, real-time air outlet temperature, real-time circulating air door opening degree 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 real-time temperature in the first vehicle are input into the fourth preset temperature model, so that the real-time temperature in the second vehicle 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 Both b4 and c4 are fourth model parameters; exp () refers to an exponential-arithmetic function based on a natural number e; t2 is a second time difference; tin_cur1 is the first in-vehicle real-time temperature. In the present invention, the values of the fourth model parameters a4, b4, c4 may be obtained by performing an environmental chamber experiment according to a specific model of the automobile (the environmental temperature in the environmental chamber experiment is the real-time environmental temperature, and the sunlight intensity thereof is the real-time sunlight intensity, and in the environmental chamber experiment, the automobile air conditioner continuously operates with the real-time air outlet parameter, that is, each parameter in the environmental chamber experiment is consistent with the preset temperature influencing parameter after the change), and then performing verification determination by a road experiment (the environmental temperature in the road experiment is the real-time environmental temperature, and the sunlight intensity thereof is the real-time sunlight intensity, and in the road experiment, the automobile air conditioner continuously operates with the real-time air outlet parameter, that is, each parameter in the road experiment is consistent with the preset temperature influencing parameter after the change).
And S90, controlling the adjusting parameters of the automobile air conditioner according to the real-time temperature in the second automobile. That is, after any one of preset temperature influence parameters (a real-time air outlet parameter of a current running of an automobile air conditioner, a real-time environmental temperature of an environment where the automobile is located, and a real-time sunlight intensity) is changed and a second real-time temperature corresponding to the change is redetermined, the adjusting parameters of the automobile air conditioner need to be controlled according to the second real-time temperature; that is, the air conditioner of the automobile is controlled to perform air conditioning related control including cold and warm air door opening control, air outlet mode control, circulating air door 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 changes again, referring to steps S70-S90, the third real-time temperature in the vehicle is determined again based on the second real-time temperature, and then the adjusting parameters of the air conditioner of the vehicle are controlled according to the third real-time temperature, and the same is also applicable. The invention also provides an automobile, which comprises 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 for a vehicle, and the detailed description thereof will be omitted. The various modules in the controller described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. A control method of an air conditioner for an automobile, comprising:
after an automobile air conditioner is started, acquiring a first time difference; the first time difference is the difference between the starting time point of the automobile air conditioner and the last historical time point of stopping working;
when the first time difference is smaller than or equal to a preset time length, acquiring 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 is the temperature in the automobile at the historical time point;
determining a second initial temperature in the vehicle according to the first time difference, the historical temperature in the vehicle and a second preset temperature model;
determining a current vehicle interior initial temperature according to the first vehicle interior initial temperature and the second vehicle interior initial temperature;
determining a first in-vehicle real-time temperature according to the first time difference, the current in-vehicle initial temperature 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 for controlling an air conditioner of a vehicle according to claim 1, wherein before determining the first real-time temperature in the vehicle according to the first time difference, the current initial temperature in the vehicle, and a third preset 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 initial temperature in the current vehicle.
3. The method for controlling an air conditioner of a vehicle according to claim 1, wherein before determining the initial temperature in the first vehicle based on the first time difference, the historical temperature in the vehicle, and a first preset temperature model, further comprises:
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 ambient temperature and the first sunlight intensity of the historical time points.
4. The method for controlling an air conditioner of a vehicle according to claim 1, wherein before determining the second initial temperature in the vehicle based on the first time difference, the historical temperature in the vehicle, and the second preset temperature model, further comprises:
obtaining 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 environment temperature and a second sunlight intensity when the automobile air conditioner is started.
5. The method for controlling an air conditioner of a vehicle according to claim 1, wherein before determining the first real-time temperature in the vehicle according to the first time difference, the current initial temperature in the vehicle, and a third preset temperature model, the method further comprises:
obtaining 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 environment temperature and a second sunlight intensity when an automobile air conditioner is started and an initial air outlet parameter when the automobile air conditioner is started.
6. The method of controlling an air conditioner for a vehicle according to claim 5, wherein the initial air outlet parameters of the air conditioner for a vehicle include an initial air outlet volume, an initial air outlet temperature, and an initial opening degree of a circulation damper.
7. The method of controlling an air conditioner for a vehicle according to claim 5, further comprising, after said controlling the adjustment parameters of the air conditioner for a 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 an automobile air conditioner;
when the preset temperature influence parameter is confirmed to meet a preset temperature updating condition, determining a second real-time temperature in the vehicle according to the first real-time temperature in the 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 update condition includes: the real-time ambient temperature is different from the second ambient temperature; or/and the real-time sunlight intensity is different from the second sunlight 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 second in-vehicle real-time temperature.
8. The method of controlling an air conditioner of a vehicle according to claim 7, wherein determining a second real-time temperature in the vehicle based on the first real-time temperature in the vehicle and a fourth preset temperature model comprises:
acquiring an update time point corresponding to the preset temperature influence parameter meeting the preset temperature update 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 on state and the updating time point;
and determining a second real-time temperature in the vehicle according to the second time difference, the first real-time temperature in the vehicle and a fourth preset temperature model.
9. The method for controlling an air conditioner of a vehicle according to claim 1, further comprising, after said controlling the adjustment parameters 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 a 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. An automobile comprising a controller for executing the automobile air conditioning control method according to any one of claims 1 to 9.
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