CN111452590B - Automobile air conditioner control method and device and air conditioner - Google Patents
Automobile air conditioner control method and device and air conditioner Download PDFInfo
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- CN111452590B CN111452590B CN202010283028.6A CN202010283028A CN111452590B CN 111452590 B CN111452590 B CN 111452590B CN 202010283028 A CN202010283028 A CN 202010283028A CN 111452590 B CN111452590 B CN 111452590B
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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
- B60H1/00814—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
- B60H1/00871—Air directing means, e.g. blades in an air outlet
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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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- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a control method and a device for an automobile air conditioner and the air conditioner, wherein the method comprises the following steps: after receiving a single air-out mode instruction, judging whether the engine is started; if the engine is started, acquiring the outdoor environment temperature and the engine temperature; determining a temperature difference between the engine temperature and the outdoor ambient temperature according to the outdoor ambient temperature and the engine temperature; judging whether the temperature difference is smaller than a first temperature threshold value; and if the temperature is not less than the first temperature threshold, executing a first refrigeration air-out action. Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device for an automobile air conditioner and the air conditioner.
Background
The automobile air conditioner is used for adjusting the temperature in the automobile, generally heating when the outdoor environment temperature is low, and refrigerating when the outdoor environment temperature is high so as to maintain the temperature in the automobile at a proper temperature. According to investigation, when the outdoor environment temperature is appropriate, most users tend to keep the consistency between the indoor temperature and the outdoor environment temperature and the fluidity of air in the automobile, and the requirement can be realized through a single air outlet mode of the automobile air conditioner.
When the conventional automobile air conditioner is opened to generate single air outlet, the temperature of the blown air is generally the temperature of an automobile engine case, so that the air outlet temperature is higher, and the use comfort of a user is influenced.
Disclosure of Invention
The invention solves the problem that the air outlet temperature of the existing automobile air conditioner is influenced by an engine case to be higher when the air outlet is single.
In order to solve the above problems, the present invention first provides a control method for an automotive air conditioner, which includes:
after receiving a single air-out mode instruction, judging whether the engine is started;
if the engine is started, acquiring the outdoor environment temperature and the engine temperature;
determining a temperature difference between the engine temperature and the outdoor ambient temperature according to the outdoor ambient temperature and the engine temperature;
judging whether the temperature difference is smaller than a first temperature threshold value;
and if the temperature is not less than the first temperature threshold, executing a first refrigeration air-out action.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Optionally, the first cooling air outlet action includes: starting the outer fan, starting the inner fan and starting the compressor.
Like this, the fan can carry out the air-out circulation in starting, starts outer fan and compressor and can play refrigerated effect when inner fan starts.
Optionally, the first cooling air-out action further includes: and adjusting the air swinging angle of the air outlet of the air conditioner to the minimum.
Therefore, the air swinging angle is adjusted to be minimum, the air outlet influence range of the air outlet of the air conditioner can be reduced, and the influence of the air outlet of the air conditioner on a user is reduced; avoid because the not good experience that the air-out temperature is uncontrolled brought for the user feels.
Optionally, in the first cooling air-out action, the compressor is started and then operates according to a first frequency.
Therefore, by limiting the frequency of the compressor, the phenomenon that the compressor is started according to a conventional refrigeration mode to bring a bad experience feeling to a user is avoided.
Optionally, in the first cooling air outlet action, the inner fan is started and then runs according to the lowest gear rotating speed.
Like this, can reduce the air output of air outlet when air-out temperature is unstable, avoid air-out temperature unstability to cause the not high influence of experience sense to the user.
Optionally, in the first cooling air-out action, the outer fan is started and then runs at the lowest rotation speed.
Optionally, the lowest rotation speed is lower than the lowest gear rotation speed of the outer fan. The consequences that the refrigerating output is too much and the outlet air temperature is too low due to high rotating speed can be avoided.
Optionally, after receiving the single air-out mode instruction, after judging whether the engine starts, still include:
if the engine is not started, the first normal-temperature air-out action is executed.
Therefore, when the engine is not started, the single air-out mode instruction can be normally executed, so that air at the outdoor temperature is blown out, the aim of keeping the consistency of the temperature in the vehicle and the outdoor environment temperature and the flowability of the air in the vehicle by a user is fulfilled, and the comfort level is improved.
Optionally, the first normal-temperature air outlet action includes: and controlling the inner fan to start at the highest gear rotating speed.
Like this, through the interior fan air-out of highest gear rotational speed, can improve the scope that the air-out influences, play the purpose of blowing, improve user's comfort level.
The first normal-temperature air outlet action further comprises: the air swinging angle of the air outlet of the air conditioner is adjusted to be maximum.
Like this, can follow the angle of blowing and improve the scope of air-out influence as far as possible, play the purpose that the user bloied, improve user's comfort level.
Optionally, if the temperature is not less than the first temperature threshold, after the first cooling air-out action is executed, the method further includes:
acquiring the temperature of an air outlet of the air conditioner and the outdoor environment temperature in real time;
determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature;
if the temperature difference is larger than a second temperature threshold, controlling the compressor to perform frequency boosting according to a first frequency boosting speed;
and if the temperature difference value is greater than a fourth temperature threshold and less than or equal to a third temperature threshold, executing a first normal-temperature air outlet action, wherein the second temperature threshold is greater than the third temperature threshold.
Like this, through the adjustment to the compressor frequency, carry out the air-out after the operation of compressor can offset the heat that engine case brought to can eliminate the influence that the engine starts and bring, blow off outdoor ambient temperature's wind, promote user's travelling comfort.
Optionally, the first frequency-increasing speed is increased by 1Hz every first time interval.
Like this, on the one hand can avoid the too big compressor that causes of range unstable, and on the other hand because the user is very sensitive to the impression of air outlet temperature, puts down the range of influence to the air-out temperature, can avoid the difference that the wide range change brought for the user to experience, improves user's comfort level.
Optionally, after determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature, the method further includes:
and if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a third temperature threshold and less than or equal to a second temperature threshold, controlling the compressor to perform frequency raising according to a second frequency raising speed, wherein the second frequency raising speed is less than the first frequency raising speed.
Like this, divide into the buffer area through third temperature threshold and second temperature threshold, mean that the air-out temperature is about to reach outdoor ambient temperature in this area, reduce the speed of raising the frequency, be based on the sensitivity of user to the air outlet temperature, prevent that vehicle air conditioner's the too fast callback that causes the refrigerating output too much of raising the frequency to reach the buffering purpose, avoid vehicle air conditioner to relapse the comfort level reduction that the callback brought.
Optionally, the second frequency-increasing speed is increased by 1Hz every second time interval.
Like this, further reduce the speed of raising frequency, the compressor that can avoid the range too big to cause on the one hand is unstable, and on the other hand, because the user is very sensitive to the impression of air outlet temperature, puts down the range of influence to the air-out temperature, can avoid the difference that the wide range change brought for the user to experience, improves user's comfort level.
Optionally, after determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature, the method further includes:
if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a fifth temperature threshold and less than or equal to a fourth temperature threshold, controlling the compressor to reduce the frequency at a second frequency reduction speed;
like this, can carry out the callback when vehicle air conditioner's refrigerating capacity is too much to avoid the air-out temperature to hang down excessively, improve the comfort level that the user used. In addition, through the callback, the temperature range of the air outlet temperature in a comfortable area can be limited, and therefore the experience of a user is improved.
Optionally, the second frequency-reducing speed is reduced by 1Hz every second time interval.
Therefore, the frequency rising speed of the callback is reduced, so that the compressor instability caused by overlarge amplitude can be avoided, and on the other hand, because the user feels sensitive to the temperature of the air outlet, the influence amplitude on the air outlet temperature is reduced, the difference experience brought to the user by large-amplitude change can be avoided, and the comfort level of the user is improved; meanwhile, the back-and-forth oscillation of frequency rising and frequency reduction caused by overlarge amplitude can be avoided.
Optionally, after determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature, the method further includes:
and if the temperature difference value between the air outlet temperature and the outdoor environment temperature is less than or equal to a fifth temperature threshold value, carrying out fault prompt externally.
Therefore, whether the temperature difference value is normal or not can be clearly defined, so that the automobile air conditioner can timely act when the automobile air conditioner control fails, and the interference caused by system faults is avoided.
Optionally, after determining whether the temperature difference is smaller than the first temperature threshold, the method further includes:
if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the first temperature threshold, judging whether the temperature difference is smaller than a sixth temperature threshold, wherein the sixth temperature threshold is smaller than the first temperature threshold;
and if the temperature is not less than the sixth temperature threshold, executing a first normal-temperature air outlet action.
Therefore, the single air-out mode instruction can be normally executed under the condition that the temperature of the engine has little influence on the temperature of the air outlet, so that the air at the outdoor temperature is blown out, the aim of keeping the consistency of the temperature in the vehicle and the temperature of the outdoor environment and the flowability of the air in the vehicle by a user is fulfilled, and the comfort level is improved.
Optionally, if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the first temperature threshold, after determining whether the temperature difference is smaller than a sixth temperature threshold, the method further includes:
and if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the sixth temperature threshold, controlling the air conditioner to stop and displaying a fault prompt.
Therefore, whether the temperature difference is normal or not can be clearly defined, so that the automobile air conditioner can timely act when the automobile air conditioner control fails, and adverse consequences caused by system faults are avoided.
Secondly, provide a vehicle air conditioner controlling means, it includes:
the judging unit is used for judging whether the engine is started or not after receiving the single air-out mode instruction;
an acquisition unit for acquiring an outdoor ambient temperature and an engine temperature if the engine is started;
a calculation unit for determining a temperature difference between the outdoor ambient temperature and the engine temperature from the outdoor ambient temperature and the engine temperature;
the judging unit is also used for judging whether the temperature difference is smaller than a first temperature threshold value;
and the control unit is used for executing a first refrigeration air outlet action if the temperature is not less than the first temperature threshold value.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
There is provided an air conditioner including a computer readable storage medium storing a computer program and a processor, the computer program being read by the processor and executed to implement the control method of the air conditioner for the vehicle as described above.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Finally, a computer-readable storage medium is provided, in which a computer program is stored, and when the computer program is read and executed by a processor, the method for controlling the vehicle air conditioner is implemented.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Drawings
Fig. 1 is a flowchart of a control method of an air conditioner for a vehicle according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner for a vehicle according to another embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner for a vehicle according to still another embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner for a vehicle according to still another embodiment of the present invention;
FIG. 5 is a flowchart of a control method of an air conditioner for a vehicle according to a further embodiment of the present invention;
fig. 6 is a flowchart of a control method of an air conditioner for a vehicle according to still another embodiment of the present invention;
fig. 7 is a flowchart of a control method of an air conditioner for a vehicle according to still another embodiment of the present invention;
fig. 8 is a flowchart of a control method of an air conditioner for a vehicle according to still another embodiment of the present invention;
fig. 9 is a block diagram illustrating the construction of a vehicle air conditioner control device according to an embodiment of the present invention.
Description of reference numerals:
1-judging unit, 2-obtaining unit, 3-calculating unit and 4-controlling unit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. 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.
For easy understanding, in the present invention, technical problems therein need to be elaborated.
The automobile air conditioner is used for adjusting the temperature in the automobile, generally heating when the outdoor environment temperature is low, and refrigerating when the outdoor environment temperature is high so as to maintain the temperature in the automobile at a proper temperature. When the outdoor environment temperature is at a proper temperature, refrigeration or heating is not needed.
According to the user's use habit survey, it is found that most users prefer the blowing behavior when the outdoor environment temperature is more appropriate, that is, the windows are opened to keep the indoor air and the outdoor air in contact and flowing, and the experience feeling of the users is particularly comfortable.
But the act of opening the window for ventilation is determined by the act of driving the vehicle and the outdoor environment. If the outdoor environment is not good, such as rainy days, haze or dust, bad smell and other weather or environments, windowing and ventilation cannot be performed; if the speed of driving is too high, the ventilation of windowing not only can not improve the comfort level, still can influence the security of driving simultaneously.
In the above situation, it is also desirable to maintain the consistency between the temperature in the vehicle and the outdoor ambient temperature and the fluidity of the air in the vehicle, and such a requirement can be achieved by the single air-out mode of the air conditioner of the vehicle.
However, in practical use, the engine case is very close to the air outlet of the air conditioner, after the engine is started, the case temperature is very high during normal operation, and the temperature is transmitted, so that when the automobile air conditioner is started to perform single air outlet, the temperature of the blown air is generally the temperature of the automobile engine case, and the air outlet temperature is high, which affects the use comfort of users.
The embodiment of the disclosure provides a control method of an automobile air conditioner, which can be executed by an automobile air conditioner control device, and the automobile air conditioner control device can be integrated in electronic equipment such as an automobile air conditioner, an automobile general control device and the like. As shown in fig. 1, which is a flowchart of a control method of an air conditioner for a vehicle according to an embodiment of the present invention; the automobile air conditioner control method comprises the following steps:
the single air-out mode instruction is given by a user, or is given by a control system according to the user requirement, or can be given by other modes.
Wherein, the judgment of whether the engine is started can obtain an exact result from a signal fed back by the engine.
the outdoor environment temperature can be obtained through a temperature sensor installed on the vehicle body, and the engine temperature can be obtained through a temperature sensor installed on the engine case.
the temperature difference between the engine temperature and the outdoor environment temperature is a difference value obtained by subtracting the outdoor environment temperature from the engine temperature.
and 500, if the temperature is not less than the first temperature threshold, executing a first refrigeration air-out action.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
It should be noted that the purpose of executing the first cooling air-out action is to eliminate the influence of the engine temperature on the air-out temperature, that is, to reduce the temperature blown out by the automobile air conditioner evaporator through the cooling air-out action, so as to achieve the effect of eliminating the temperature influence. However, in the normal cooling mode, when the compressor is to be started, the air inlet temperature and the set target temperature of the vehicle air conditioner are detected, and in the current situation, that is, the indoor temperature and the target temperature of the vehicle (the outdoor temperature is set to the target temperature when the outdoor temperature wind is to be blown out) are detected, but the indoor temperature of the vehicle is the same as the target temperature (the outdoor temperature), that is, the detected air inlet temperature is the same as the set target temperature. Like this, through setting up first refrigeration air-out action, can avoid the condition that the compressor is shut down to offset the influence of engine temperature to the air-out temperature through refrigeration, improve the comfort level and the experience sense that the user used.
Optionally, the value range of the first temperature threshold is 1 ℃ to 3 ℃. The temperature of the engine has jump property, namely, the difference between the engine and the outdoor environment temperature is smaller only when the engine is used in special conditions or the engine is just started, and the influence of the engine temperature on the temperature of the air outlet is small under the condition; therefore, the value range is set, the condition that the influence of the temperature of the engine on the temperature of the air outlet is small can be checked under the condition, and the control accuracy is improved.
Optionally, the first temperature threshold is 2 ℃. Therefore, the judgment of the condition with little influence on the temperature of the engine is more accurate, and the control accuracy is improved.
Optionally, the first cooling air outlet action includes: starting the outer fan, starting the inner fan and starting the compressor.
Like this, the fan can carry out the air-out circulation in starting, starts outer fan and compressor and can play refrigerated effect when inner fan starts.
Here, it should be noted that, due to the small space of the vehicle, the air outlet of the vehicle air conditioner is very close to the user, so that the user feels very sensitive to the temperature of the air outlet. When the first cooling air outlet action is executed, the air outlet temperature is affected by the temperature of the engine, so that the specific condition of the air outlet temperature is difficult to judge, for example, the air outlet temperature may be far higher than expected, and the blowing user is easy to have a very bad experience.
Optionally, the first cooling air-out action further includes: and adjusting the air swinging angle of the air outlet of the air conditioner to the minimum. Therefore, the air swinging angle is adjusted to be minimum, the air outlet influence range of the air outlet of the air conditioner can be reduced, and the influence of the air outlet of the air conditioner on a user is reduced; avoid because the not good experience that the air-out temperature is uncontrolled brought for the user feels.
Optionally, in the first cooling air-out action, the compressor is started and then operates according to a first frequency.
Therefore, by limiting the frequency of the compressor, the phenomenon that the compressor is started according to a conventional refrigeration mode to bring a bad experience feeling to a user is avoided.
Optionally, the value range of the first frequency is 10Hz to 12 Hz; the purpose of the compressor is to offset the temperature influence brought by the engine case, the influence is actually caused by heat propagation of the flowing air in a short time, and in terms of refrigerating capacity, the required refrigerating capacity is very small, so that the compressor is required to be started at a low frequency, and the consequences that the refrigerating capacity is too high and the outlet air temperature is too low, which are caused by high frequency, are avoided.
Optionally, the first frequency is 12 Hz. Therefore, the consequences that the refrigerating capacity is too much and the outlet air temperature is too low due to the high-frequency compressor can be avoided.
Optionally, in the first cooling air outlet action, the inner fan is started and then runs according to the lowest gear rotating speed.
It should be noted that the inner fan has a plurality of wind speed gears, and the inner fan is controlled to start according to the lowest gear when starting. Like this, can reduce the air output of air outlet when air-out temperature is unstable, avoid air-out temperature unstability to cause the not high influence of experience sense to the user.
Optionally, the lowest gear rotating speed is 300 r/min. Through this rotational speed, can reduce the experience influence that the user brought for giving of uncertain air-out temperature to minimum to improve user's comfort level from the side.
Optionally, in the first cooling air-out action, the outer fan is started and then runs at the lowest rotation speed. The rotating speed of the outer fan is related to the actual refrigeration condition of the air conditioning system, and the outer fan is started according to the lowest rotating speed, so that the consequences that the refrigerating capacity is too much and the air outlet temperature is too low due to high rotating speed can be avoided.
Optionally, the lowest rotation speed is lower than the lowest gear rotation speed of the outer fan. The external fan is provided with a plurality of wind speed gears, the wind speed gears are set based on the refrigerating capacity under the normal refrigeration condition, but the refrigerating capacity required for counteracting the influence of the temperature of the engine case is far less than the refrigerating capacity required for refrigerating the temperature in the vehicle, so that the lowest rotating speed is lower than the rotating speed of the lowest gear, and the result that the refrigerating capacity is too much when the external fan operates at the rotating speed of the lowest gear is avoided.
Optionally, the minimum rotation speed ranges from 200r/min to 250 r/min. Through the rotating speed, the rotating speed of the fan can be lower than that of the lowest gear, and the result that the refrigerating capacity is excessive when the outer fan runs at the lowest gear rotating speed is avoided; meanwhile, the refrigeration effect of the compressor can be maintained, and the condition that refrigeration cannot be performed due to the fact that the air quantity of the outer fan is too small is avoided.
Optionally, as shown in fig. 2, step 100, after receiving the single air-out mode instruction, and after determining whether the engine is started, further includes:
in step 1300, if the engine is not started, a first normal temperature air-out operation is performed.
Therefore, when the engine is not started, the single air-out mode instruction can be normally executed, so that air at the outdoor temperature is blown out, the aim of keeping the consistency of the temperature in the vehicle and the outdoor environment temperature and the flowability of the air in the vehicle by a user is fulfilled, and the comfort level is improved.
Optionally, the first normal-temperature air outlet action includes: and controlling the inner fan to start at the highest gear rotating speed.
Like this, through the interior fan air-out of highest gear rotational speed, can improve the scope that the air-out influences, play the purpose of blowing, improve user's comfort level.
Optionally, the first normal-temperature air outlet action further includes: the air swinging angle of the air outlet of the air conditioner is adjusted to be maximum. Like this, can follow the angle of blowing and improve the scope of air-out influence as far as possible, play the purpose that the user bloied, improve user's comfort level.
Optionally, as shown in fig. 3, in the step 500, if the temperature is not less than the first temperature threshold, after the first cooling air-out operation is performed, the method further includes:
the temperature of the air conditioner air outlet is obtained through a temperature sensor arranged at the air conditioner air outlet; it should be noted that the air outlet is disposed in the vehicle, the outlet air therein is outlet air that has been affected by the temperature of the engine case, and after the air is blown out from the air outlet, the air is no longer affected by the temperature of the engine case, so the temperature of the outlet air is the actual outlet air temperature that the user feels.
Through obtaining in real time, can improve the accuracy of judging the air-out temperature, improve the degree of accuracy of control.
wherein the temperature difference between the outlet temperature and the outdoor ambient temperature; subtracting the difference of the outdoor environment temperature from the air outlet temperature.
the compressor is started at a very low frequency, and the refrigerating capacity of the automobile air conditioner can be gradually increased by increasing the frequency, so that the effect of offsetting heat brought by the engine case is achieved.
Therefore, through the adjustment of the frequency of the compressor, air is discharged after the heat brought by the engine case can be offset in the running of the compressor, so that the influence caused by the starting of the engine can be eliminated, the air at the outdoor environment temperature is blown out, and the comfort of a user is improved.
Optionally, the value range of the second temperature threshold is 1 ℃ to 3 ℃. The temperature difference value in the value range can bring obvious sense of difference for the user, so that the temperature difference value can be clearly defined through the value range, actions are executed, the temperature difference value is reduced, and the comfort level of the user is improved.
Optionally, the second temperature threshold is 2 ℃. Therefore, the temperature difference value can be clearly defined, so that actions are executed, the temperature difference value is reduced, and the comfort level of a user is improved.
Optionally, the value range of the third temperature threshold is 0.1-1 ℃. Although the temperature difference value in the value range does not bring obvious sense of difference to a user, the temperature fluctuates to the temperature range which brings the sense of difference after the temperature fluctuates, and therefore the defined buffer part is arranged through the value range, actions are executed on the buffer part, the influence of the temperature difference value on the user is reduced, and the comfort level is improved.
Optionally, the third temperature threshold is 0.5 ℃. Therefore, the defined buffer part can execute actions on the buffer part in time, the influence of the temperature difference value on a user is reduced, and the comfort level is improved.
Optionally, the value of the fourth temperature threshold ranges from-1 ℃ to (-0.1 ℃). Although the temperature difference value in the value range does not bring obvious sense of difference to a user, the temperature fluctuates to the temperature range which brings the sense of difference after the temperature fluctuates, and therefore the defined buffer part is arranged through the value range, actions are executed on the buffer part, the influence of the temperature difference value on the user is reduced, and the comfort level is improved.
Optionally, the fourth temperature threshold is-0.5 ℃. Therefore, the defined buffer part can execute actions on the buffer part in time, the influence of the temperature difference value on a user is reduced, and the comfort level is improved.
Like this, through third temperature threshold value and fourth temperature threshold value, can circle the temperature that does not need the buffering, be the temperature range that the user felt no difference promptly to carry out the air-out at this temperature range, blow out outdoor ambient temperature's wind, reach the effect of blowing that satisfies the demand, improve user's comfort level.
Optionally, the first frequency-increasing speed is increased by 1Hz every first time interval.
Optionally, the value range of the first time interval is 10s to 15 s. This speed of raising frequency is the speed of raising frequency of less range, can avoid the compressor that the range is too big to cause unstable on the one hand, and on the other hand because the user is very sensitive to the impression of air outlet temperature, puts down the influence range to the air-out temperature, can avoid the difference that the wide range change brought for the user to experience, improves user's comfort level.
Optionally, as shown in fig. 4, after determining a temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature in step 700, the method further includes:
and 900, if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a third temperature threshold and less than or equal to a second temperature threshold, controlling the compressor to perform frequency raising according to a second frequency raising speed, wherein the second frequency raising speed is less than the first frequency raising speed.
Like this, divide into the buffer area through third temperature threshold and second temperature threshold, mean that the air-out temperature is about to reach outdoor ambient temperature in this area, reduce the speed of raising the frequency, be based on the sensitivity of user to the air outlet temperature, prevent that vehicle air conditioner's the too fast callback that causes the refrigerating output too much of raising the frequency to reach the buffering purpose, avoid vehicle air conditioner to relapse the comfort level reduction that the callback brought.
Optionally, the second frequency-increasing speed is increased by 1Hz every second time interval.
Optionally, the value range of the second time interval is 30s to 45 s. Like this, further reduce the speed of raising frequency, the compressor that can avoid the range too big to cause on the one hand is unstable, and on the other hand, because the user is very sensitive to the impression of air outlet temperature, puts down the range of influence to the air-out temperature, can avoid the difference that the wide range change brought for the user to experience, improves user's comfort level.
Optionally, as shown in fig. 5, after determining a temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature in step 700, the method further includes:
1100, if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a fifth temperature threshold and less than or equal to a fourth temperature threshold, controlling the compressor to reduce the frequency at a second frequency reduction speed;
like this, can carry out the callback when vehicle air conditioner's refrigerating capacity is too much to avoid the air-out temperature to hang down excessively, improve the comfort level that the user used. In addition, through the callback, the temperature range of the air outlet temperature in a comfortable area can be limited, and therefore the experience of a user is improved.
Optionally, the second frequency-reducing speed is reduced by 1Hz every second time interval. Therefore, the frequency rising speed of the callback is reduced, so that the compressor instability caused by overlarge amplitude can be avoided, and on the other hand, because the user feels sensitive to the temperature of the air outlet, the influence amplitude on the air outlet temperature is reduced, the difference experience brought to the user by large-amplitude change can be avoided, and the comfort level of the user is improved; meanwhile, the back-and-forth oscillation of frequency rising and frequency reduction caused by overlarge amplitude can be avoided.
Optionally, the value of the fifth temperature threshold ranges from-3 ℃ (-1 ℃). The temperature threshold value is used for defining whether the temperature of the air port is normal or not, and the temperature difference value cannot appear under the normal control condition, so that whether the temperature difference value is normal or not can be clearly defined through the value range, actions are executed, and interference caused by system faults is avoided.
Optionally, the fifth temperature threshold is-2 ℃. Therefore, whether the temperature difference value is normal or not can be clearly defined, so that actions are executed, and interference caused by system faults is avoided.
Optionally, as shown in fig. 6, after determining a temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature in step 700, the method further includes:
and 1200, if the temperature difference value between the air outlet temperature and the outdoor environment temperature is less than or equal to a fifth temperature threshold, performing fault prompt to the outside.
Therefore, whether the temperature difference value is normal or not can be clearly defined, so that the automobile air conditioner can timely act when the automobile air conditioner control fails, and the interference caused by system faults is avoided.
Optionally, as shown in fig. 7, after determining whether the temperature difference is smaller than the first temperature threshold, the step 400 further includes:
and 1500, if the temperature is not less than the sixth temperature threshold, executing a first normal-temperature air outlet action.
The temperature of the engine has jump variation, namely, the difference between the temperature of the engine and the outdoor environment temperature is small only when the engine is used in special conditions or the engine is just started, and the influence of the temperature of the engine on the temperature of the air outlet is small in the condition.
Through the step, the single air-out mode instruction can be normally executed under the condition that the temperature of the engine has little influence on the temperature of the air outlet, so that the air at the outdoor temperature is blown out, the aim of keeping the consistency of the temperature in the vehicle and the temperature of the outdoor environment and the flowability of the air in the vehicle by a user is fulfilled, and the comfort level is improved.
Optionally, the value range of the sixth temperature threshold is-3 ℃ to 0 ℃. The temperature threshold is used for defining whether the temperature of the engine is normal or not, and the temperature difference does not occur under the normal control condition, so that whether the temperature difference is normal or not can be clearly defined through the value range, actions are executed, and interference caused by system faults is avoided.
Optionally, the sixth temperature threshold is-1 ℃. Thus, whether the temperature difference is normal or not can be clearly defined, so that the action is executed, and the interference caused by system faults is avoided.
Optionally, as shown in fig. 8, in step 1400, if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the first temperature threshold, after determining whether the temperature difference is smaller than a sixth temperature threshold, the method further includes:
and 1600, if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the sixth temperature threshold, controlling the air conditioner to stop and displaying a fault prompt.
Therefore, whether the temperature difference is normal or not can be clearly defined, so that the automobile air conditioner can timely act when the automobile air conditioner control fails, and adverse consequences caused by system faults are avoided.
The embodiment of the present disclosure provides a vehicle air conditioner control device, which is used for executing the vehicle air conditioner control method according to the above contents of the present disclosure, and the vehicle air conditioner control device is described in detail below.
As shown in fig. 9, the vehicle air conditioning control device includes:
the judging unit 1 is used for judging whether the engine is started or not after receiving the single air-out mode instruction;
an acquisition unit 2 for acquiring an outdoor ambient temperature and an engine temperature if the engine is started;
a calculation unit 3 for determining a temperature difference between the outdoor ambient temperature and the engine temperature, based on the outdoor ambient temperature and the engine temperature;
the judging unit 1 is further configured to judge whether the temperature difference is smaller than a first temperature threshold;
and the control unit 4 is used for executing a first refrigeration air-out action if the temperature is not less than the first temperature threshold value.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Optionally, the value range of the first temperature threshold is 1 ℃ to 3 ℃.
Optionally, the first cooling air outlet action includes: starting the outer fan, starting the inner fan and starting the compressor.
Optionally, the first cooling air-out action further includes: and adjusting the air swinging angle of the air outlet of the air conditioner to the minimum.
Optionally, in the first cooling air-out action, the compressor is started and then operates according to a first frequency.
Optionally, the value range of the first frequency is 10Hz to 12 Hz;
optionally, in the first cooling air outlet action, the inner fan is started and then runs according to the lowest gear rotating speed.
Optionally, the lowest gear rotating speed is 300 r/min.
Optionally, in the first cooling air-out action, the outer fan is started and then runs at the lowest rotation speed.
Optionally, the lowest rotation speed is lower than the lowest gear rotation speed of the outer fan.
Optionally, the control unit 4 is further configured to: if the engine is not started, the first normal-temperature air-out action is executed.
Optionally, the first normal-temperature air outlet action includes: and controlling the inner fan to start at the highest gear rotating speed.
The first normal-temperature air outlet action further comprises: the air swinging angle of the air outlet of the air conditioner is adjusted to be maximum.
Optionally, the obtaining unit 2 is further configured to: acquiring the temperature of an air outlet of the air conditioner and the outdoor environment temperature in real time;
the calculation unit 3 is further configured to: determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature;
the control unit 4 is further configured to: if the temperature difference is larger than a second temperature threshold, controlling the compressor to perform frequency boosting according to a first frequency boosting speed; and if the temperature difference value is greater than a fourth temperature threshold and less than or equal to a third temperature threshold, executing a first normal-temperature air outlet action, wherein the second temperature threshold is greater than the third temperature threshold.
Optionally, the value range of the second temperature threshold is 1 ℃ to 3 ℃.
Optionally, the value range of the third temperature threshold is 0.1-1 ℃.
Optionally, the first frequency-increasing speed is increased by 1Hz every first time interval.
Optionally, the value range of the first time interval is 10s to 15 s.
Optionally, the control unit 4 is further configured to: and if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a third temperature threshold and less than or equal to a second temperature threshold, controlling the compressor to perform frequency raising according to a second frequency raising speed, wherein the second frequency raising speed is less than the first frequency raising speed.
Optionally, the second frequency-increasing speed is increased by 1Hz every second time interval.
Optionally, the value range of the second time interval is 30s to 45 s.
Optionally, the control unit 4 is further configured to: if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a fifth temperature threshold and less than or equal to a fourth temperature threshold, controlling the compressor to reduce the frequency at a second frequency reduction speed;
optionally, the second frequency-reducing speed is reduced by 1Hz every second time interval.
Optionally, the control unit 4 is further configured to: and if the temperature difference value between the air outlet temperature and the outdoor environment temperature is less than or equal to a fifth temperature threshold value, carrying out fault prompt externally.
Optionally, the determining unit 1 is further configured to: if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the first temperature threshold, judging whether the temperature difference is smaller than a sixth temperature threshold, wherein the sixth temperature threshold is smaller than the first temperature threshold;
the control unit 4 is further configured to: and if the temperature is not less than the sixth temperature threshold, executing a first normal-temperature air outlet action.
Optionally, the value range of the sixth temperature threshold is-3 ℃ to 0 ℃.
The control unit 4 is further configured to: and if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the sixth temperature threshold, controlling the air conditioner to stop and displaying a fault prompt.
The embodiment of the present disclosure provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, wherein the computer program is read and executed by the processor to implement the control method of the vehicle air conditioner.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
The embodiment of the present disclosure also provides a computer-readable storage medium, which stores instructions that, when being loaded and executed by a processor, can implement the aforementioned control method for an automotive air conditioner.
The technical solution of the embodiment of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be an air conditioner, a refrigeration device, a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the embodiment of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Like this, after receiving single air-out mode instruction, can be in the engine start condition, through the judgement to the engine temperature, offset the influence of engine temperature to air-out temperature through refrigeration when the high temperature to avoid appearing the condition that air-out temperature is on the high side, improved the travelling comfort and the experience that the user used and felt.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A control method for an automobile air conditioner is characterized by comprising the following steps:
after receiving a single air-out mode instruction, judging whether the engine is started;
if the engine is started, acquiring the outdoor environment temperature and the engine temperature;
determining a temperature difference between the engine temperature and the outdoor ambient temperature according to the outdoor ambient temperature and the engine temperature;
judging whether the temperature difference is smaller than a first temperature threshold value;
and if the temperature is not less than the first temperature threshold, executing a first refrigeration air-out action.
2. The control method of air conditioner for vehicle as claimed in claim 1, wherein the first cooling air-out action includes: starting the outer fan, starting the inner fan and starting the compressor.
3. The control method of air conditioner for vehicle according to claim 2, wherein said first cooling air-out action further comprises: and adjusting the air swinging angle of the air outlet of the air conditioner to the minimum.
4. The control method of an air conditioner for a vehicle as claimed in claim 2, wherein in the first cooling air-out operation, the inner fan is operated at the lowest gear speed after being started.
5. The control method of air conditioner for vehicle according to claim 2, wherein in the first cooling air-out operation, the outer fan is operated at the lowest rotation speed after being started.
6. The control method of the air conditioner of the automobile as claimed in any one of claims 1-5, wherein after receiving the single air-out mode command and determining whether the engine is started, the method further comprises:
and if the engine is not started, executing a first normal-temperature air outlet action.
7. The control method of the air conditioner of the vehicle as claimed in claim 6, wherein the first normal temperature air-out action includes: and controlling the inner fan to start at the highest gear rotating speed.
8. The control method of air conditioner for vehicle according to any one of claims 1 to 5, wherein if the temperature is not less than the first temperature threshold, after the first cooling and air-out operation is performed, the method further comprises:
acquiring the temperature of an air outlet of the air conditioner and the outdoor environment temperature in real time;
determining the temperature difference between the air outlet temperature and the outdoor environment temperature according to the air outlet temperature and the outdoor environment temperature;
if the temperature difference is larger than a second temperature threshold, controlling the compressor to perform frequency boosting according to a first frequency boosting speed;
and if the temperature difference value is greater than a fourth temperature threshold and less than or equal to a third temperature threshold, executing a first normal-temperature air outlet action, wherein the second temperature threshold is greater than the third temperature threshold.
9. The method as claimed in claim 8, further comprising, after determining a temperature difference between the outlet temperature and the outdoor ambient temperature according to the outlet temperature and the outdoor ambient temperature:
and if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than the third temperature threshold and less than or equal to the second temperature threshold, controlling the compressor to perform frequency raising according to a second frequency raising speed, wherein the second frequency raising speed is less than the first frequency raising speed.
10. The method as claimed in claim 8, further comprising, after determining a temperature difference between the outlet temperature and the outdoor ambient temperature according to the outlet temperature and the outdoor ambient temperature:
and if the temperature difference between the air outlet temperature and the outdoor environment temperature is greater than a fifth temperature threshold and less than or equal to a fourth temperature threshold, controlling the compressor to reduce the frequency according to a second frequency reduction speed.
11. The method as claimed in claim 8, further comprising, after determining a temperature difference between the outlet temperature and the outdoor ambient temperature according to the outlet temperature and the outdoor ambient temperature:
and if the temperature difference value between the air outlet temperature and the outdoor environment temperature is less than or equal to a fifth temperature threshold value, carrying out fault prompt externally.
12. The vehicle air conditioner control method according to any one of claims 1 to 5, wherein after said judging whether or not said temperature difference is smaller than a first temperature threshold, further comprising:
if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the first temperature threshold, judging whether the temperature difference is smaller than a sixth temperature threshold, wherein the sixth temperature threshold is smaller than the first temperature threshold;
and if the temperature is not less than the sixth temperature threshold, executing a first normal-temperature air outlet action.
13. The method of controlling air conditioning for a vehicle according to claim 12, wherein, if the temperature difference between the engine temperature and the outdoor ambient temperature is smaller than the first temperature threshold, after determining whether the temperature difference is smaller than a sixth temperature threshold, the method further comprises:
and if the temperature difference between the engine temperature and the outdoor environment temperature is smaller than the sixth temperature threshold, controlling the air conditioner to stop and displaying a fault prompt.
14. An automotive air conditioning control device characterized by comprising:
the judging unit (1) is used for judging whether the engine is started or not after receiving the single air-out mode instruction;
an acquisition unit (2) for acquiring an outdoor ambient temperature and an engine temperature if the engine is started;
a calculation unit (3) for determining a temperature difference between the outdoor ambient temperature and the engine temperature from the outdoor ambient temperature and the engine temperature;
the judging unit (1) is also used for judging whether the temperature difference is smaller than a first temperature threshold value;
and the control unit (4) is used for executing a first refrigeration air-out action if the temperature is not less than the first temperature threshold value.
15. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the control method of the air conditioner for the vehicle according to any one of claims 1 to 13.
16. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when read and executed by a processor, implements the vehicle air conditioner control method according to any one of claims 1 to 13.
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| CN113606752B (en) * | 2021-06-29 | 2023-03-03 | 宁波德业日用电器科技有限公司 | Jump-prevention dehumidifier humidity display method |
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