CN110103664A - A kind of energy-saving control method and device of air conditioning for automobiles - Google Patents
A kind of energy-saving control method and device of air conditioning for automobiles Download PDFInfo
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- CN110103664A CN110103664A CN201910328365.XA CN201910328365A CN110103664A CN 110103664 A CN110103664 A CN 110103664A CN 201910328365 A CN201910328365 A CN 201910328365A CN 110103664 A CN110103664 A CN 110103664A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004378 air conditioning Methods 0.000 title abstract description 8
- 238000010257 thawing Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 20
- 238000004590 computer program Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- B60H1/00785—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 by the detection of humidity or frost
-
- 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
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of energy-saving control methods of air conditioning for automobiles.Including when detecting starting of air conditioner, the internal-external cycle throttle of the air-conditioning is switched to interior cycle throttle；Detect interior temperature and humidity numerical value, the temperature and humidity numerical value is judged whether less than the first preset value, if so, by the inside cycle throttle stepping specified amount of the internal-external cycle throttle of the air-conditioning, if it is not, then by the outside cycle throttle stepping specified amount of the internal-external cycle throttle of the air-conditioning.The invention further relates to a kind of energy-saving control devices of air conditioning for automobiles.The present invention uses interior circulation under the premise of guaranteeing heating effect as far as possible, reduces the use ratio of outer circulation, and then reduce the heating power of air-conditioning, reduces the loss of automobile power.
Description
Technical Field
The invention relates to the technical field of energy conservation of new energy automobile air conditioners, in particular to an energy-saving control method and device of an automobile air conditioner.
Background
With the popularization of new energy automobiles in China, the holding capacity of the new energy automobiles is increasing, energy of batteries is basically consumed when air conditioners of the new energy automobiles perform heating, and how to reduce power consumption during air conditioner heating is always the key point of exploration and research and development of various new energy host plants. When the automobile air conditioner is used, the external circulation or the internal circulation is generally used, the external circulation means that fresh air obtained from the outside of an automobile enters the automobile, the internal circulation means the self-circulation of air in the automobile, and no fresh air outside the automobile enters the automobile. Because driver and crew can exhale a large amount of humid air when breathing, lead to the inboard fog that leads to the front windshield easily, and the extrinsic cycle can be given priority to the defogging mode, outside air gets into the car after, because outside air temperature is lower, needs a large amount of energy to heat it, makes air conditioner heating consumption great, power consumptive more. However, in the prior art, a method capable of dynamically controlling and adjusting internal and external circulation switching is not available, so that the power consumption is large and the power consumption is high when the new energy automobile is started.
Disclosure of Invention
The invention aims to provide an energy-saving control method and device for an automobile air conditioner, which can solve the problem of high power consumption of a new energy automobile air conditioner during heating.
According to a first aspect of the present invention, there is provided an energy saving control method of an air conditioner for a vehicle, comprising:
when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door;
detecting temperature and humidity values in the vehicle, judging whether the temperature and humidity values are smaller than a first preset value,
if yes, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door;
and if not, stepping the internal and external circulating air doors of the air conditioner by a specified amount.
Further, after "if not, step the internal and external circulation air doors of the air conditioner by a specified amount" the method further includes:
when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door;
and opening a front defrosting air outlet.
Further, after "if yes, stepping the internal and external circulation damper of the air conditioner by a specified amount to the internal circulation damper", the method further includes:
and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
Further, before "judging whether the temperature and humidity value is smaller than a first preset value", the method further comprises:
resetting a timer to a preset time and starting the timer to count down;
when the time of the timer is zero, the next method is performed.
According to a second aspect of the present invention, there is provided an energy saving control apparatus of an air conditioner for a vehicle, comprising:
a detection module: when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door;
a judging module: detecting temperature and humidity values in the vehicle, judging whether the temperature and humidity values are smaller than a first preset value,
if yes, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door;
if not, stepping the internal and external circulation air doors of the air conditioner by a specified amount;
further, after "if not, step the internal and external circulation air doors of the air conditioner by a specified amount" the method further includes:
a judging module: when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door;
a control module: and opening a front defrosting air outlet.
Further, after "if yes, stepping the internal and external circulation damper of the air conditioner by a specified amount to the internal circulation damper", the method further includes:
a detection module: and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
Further, before "judging whether the temperature and humidity value is smaller than a first preset value", the method further comprises:
a timing module: resetting a timer to a preset time and starting the timer to count down;
a judging module: when the time of the timer is zero, the next method is performed.
According to a third aspect of the present invention, there is provided an electronic device comprising a memory, a processor, a bus, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the energy saving control method of the vehicle air conditioner according to the first aspect when executing the program.
According to a fourth aspect of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of a method for energy saving control of a vehicle air conditioner according to the first aspect.
The invention has the beneficial effects that: compared with the prior art, the temperature and humidity sensor is used for detecting the temperature and humidity in the automobile, the use proportion of the internal circulation and the external circulation in the air conditioning system is dynamically regulated according to the temperature and humidity, the internal circulation is used as much as possible on the premise of ensuring the heating effect, the use proportion of the external circulation is reduced, the heating power of the air conditioner is further reduced, and the electric quantity loss of the automobile is reduced.
Drawings
Fig. 1 is a flowchart of an energy saving control method of an air conditioner for a vehicle according to an embodiment of the present invention;
fig. 2 is a structural view of an energy saving control apparatus of an air conditioner for a vehicle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 shows a flow of an energy saving control method of a vehicle air conditioner according to an embodiment of the present invention, including:
and S11, when the air conditioner is detected to be started, switching the internal and external circulation air door of the air conditioner to the internal circulation air door.
The execution subject of the method can be a controller of the new energy automobile.
In the embodiment of the specification, when the controller detects that the air conditioner in the new energy automobile is started, the controller can switch the internal and external circulation air door of the air conditioner to the internal circulation air door, even if the current temperature regulation in the automobile is completely realized by means of the internal circulation.
The calculation method of the air conditioner power consumption includes:
whereinIn order to consume the power of the air conditioner,in order to condition the actual air flow rate of the air conditioner,is the specific heat capacity of the air,in order to be the temperature difference,the temperature of the air outlet of the air conditioner,the temperature of the inlet air of the air conditioner. According to the calculation method, under the condition that the target air outlet temperature and the air mass flow of the air conditioner are basically unchanged within a period of time, if the power consumption of the air conditioner is required to be reduced, the air inlet temperature of the air conditioner can be increased.
Through thermodynamic formula calculation, the calculation formula of the mixed air temperature can be obtained as follows:
wherein,in order to achieve an internal circulation air flow rate,in order to control the temperature of the air circulating in the air conditioner,is the flow rate of the external circulation air,the outside circulation air temperature.
As can be seen from the above equation:
when the circulation is completely circulated outside, the water is discharged,=0，
then；
When the internal circulation is completed, the water is circulated,=0，
then。
When the temperature of the external circulation air flow is lower than that of the internal circulation air flow, the internal circulation is preferentially used on the premise of no fogging, and the temperature of the internal circulation air flow can be increasedThe value is obtained. Therefore, when the interior of the vehicle is heated, the power can be effectively reduced by using the internal circulation as much as possible, and the loss of electric quantity is reduced.
S12, detecting temperature and humidity values in the vehicle, and judging whether the temperature and humidity values are smaller than a first preset value.
In this specification, the controller can detect the temperature and humidity in the vehicle through the temperature and humidity sensor, and the temperature and humidity sensor can be generally arranged near the base of the inside rear-view mirror of the vehicle, and can also be integrated on the base of the inside rear-view mirror, so as to detect the actual temperature and humidity around the front windshield. After acquiring the value detected by the temperature and humidity sensor, the controller compares the value with the first and second preset values to determine whether the detected value is smaller than the first preset value, and the specific value of the first preset value may be a value calculated by an experiment and most suitable for energy-saving control.
And S13, if yes, stepping the internal and external circulation air door of the air conditioner to the internal circulation air door by a specified amount.
In the embodiment of the specification, when the controller finds that the detection value is smaller than the first preset value after numerical comparison, that is, the humidity in the vehicle is low, the humidity needs to be improved, the controller controls the inner and outer circulation air doors to step towards the inner circulation air doors by a specified amount, and further the air inlet proportion of the inner circulation is improved. Where the value stepped by the specified amount may be obtained by calibration experiments.
And S14, if not, stepping the internal and external circulation air door of the air conditioner to the external circulation air door by a specified amount.
In the embodiment of the specification, when the controller finds that the detection value is greater than or equal to the first preset value after numerical comparison, that is, the humidity in the vehicle is high and needs to be reduced, the controller controls the inner and outer circulation air doors to step towards the outer circulation air doors by a specified amount, and further the air inlet proportion of the outer circulation is improved.
In this specification, after a round of judgment is completed, that is, after the internal and external circulation air doors are stepped, the controller may reacquire the detection values of the temperature and humidity sensor to perform comparison and judgment, and then start the temperature and humidity adjustment of the next round, so as to reduce power consumption through such dynamic regulation control.
As a preferred embodiment, after "if no, step the internal and external circulation dampers of the air conditioner by a specified amount" further includes: when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door; and opening a front defrosting air outlet.
It should be noted that the relative humidity of the air near the glass is a controllable and detectable value, and when the relative humidity reaches one hundred percent, the air reaches the dew point temperature, and the fogging phenomenon occurs.
In the embodiment of the specification, a second preset value is further arranged in the controller, the second preset value is used for controlling active demisting, and when the temperature and humidity sensor acquired by the controller detects that the detection value is greater than the second preset value, the humidity lifting speed is considered to be higher than the speed of step adjustment of the internal and external circulation air door, at this moment, fog can appear, the visual range of a user is affected, and traffic accidents are easy to occur. Therefore the controller can directly step-by-step to outer circulation air door with inside and outside circulation air door, and the humidity in the at utmost reduces the car, and simultaneously, the controller can control and open preceding defrosting air outlet, further assists the defrosting defogging.
As a preferred embodiment, after "if yes, stepping the inner and outer circulation dampers of the air conditioner by a specified amount to the inner circulation damper", the method further comprises: and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
In this embodiment, when the detected value obtained by the controller is lower than the first preset value, the humidity in the vehicle needs to be increased, and at this time, the front defrosting air outlet may be opened because the previous humidity exceeds the second preset value, and the opening of the front defrosting air outlet may reduce the humidity in the vehicle, so that when the controller detects that the front defrosting air outlet is in an open state, the controller may close the front defrosting air outlet.
As a preferred embodiment, before "determining whether the temperature and humidity value is smaller than a first preset value", the method further includes: resetting a timer to a preset time and starting the timer to count down; when the time of the timer is zero, the next method is performed.
In the embodiment of the present disclosure, since the change of the humidity needs a certain time to be detected, in order to avoid frequent oscillation of the control system, a preset time needs to be set as a period of each operation, a value of the preset time can be obtained through a calibration experiment, before the controller re-determines the detection value each time, the controller resets the timer to the preset time and starts to count down, and only after the time of the timer is counted down to zero, that is, after an operation period, the controller will re-determine the detection value.
Fig. 2 shows a structure of an energy saving control apparatus of an air conditioner for a vehicle according to an embodiment of the present invention, including:
the detection module 21: when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door;
the judging module 22: detecting temperature and humidity values in the vehicle, judging whether the temperature and humidity values are smaller than a first preset value,
if yes, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door;
and if not, stepping the internal and external circulating air doors of the air conditioner by a specified amount.
As a preferred embodiment, after "if no, step the internal and external circulation dampers of the air conditioner by a specified amount" further includes:
the judging module 22: when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door;
a control module: and opening a front defrosting air outlet.
As a preferred embodiment, after "if yes, stepping the inner and outer circulation dampers of the air conditioner by a specified amount to the inner circulation damper", the method further comprises:
the detection module 21: and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
As a preferred embodiment, before "determining whether the temperature and humidity value is smaller than a first preset value", the method further includes:
a timing module: resetting a timer to a preset time and starting the timer to count down;
a judging module: when the time of the timer is zero, the next method is performed.
Yet another embodiment of the present invention discloses an electronic device, which includes a memory, a processor, a bus, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method embodiments when executing the computer program. A further embodiment of the invention discloses a storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiment. Examples include: when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door; judging whether the detection value of the temperature and humidity sensor is smaller than a first preset value or not, if so, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door; if not, stepping the internal and external circulation air doors of the air conditioner by a specified amount; and judging whether the detection value of the temperature and humidity sensor is smaller than the first preset value again.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
Those of ordinary skill in the art will understand that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, although the present invention is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is possible to modify the solutions described in the above embodiments or to substitute some or all of the technical features of the embodiments, without departing from the scope of the present invention as defined in the claims.
Claims (10)
1. An energy-saving control method of a vehicle air conditioner is characterized by comprising the following steps:
when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door;
detecting temperature and humidity values in the vehicle, judging whether the temperature and humidity values are smaller than a first preset value,
if yes, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door;
and if not, stepping the internal and external circulating air doors of the air conditioner by a specified amount.
2. The energy-saving control method of an air conditioner for a vehicle according to claim 1, further comprising, after "if not, stepping an inside and outside circulation damper of the air conditioner by a specified amount" the step further comprising:
when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door;
and opening a front defrosting air outlet.
3. The energy-saving control method of an air conditioner for a vehicle according to claim 1, wherein after "if yes, stepping an inside and outside circulation damper of the air conditioner by a specified amount toward an inside circulation damper" further comprises:
and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
4. The energy-saving control method of the automobile air conditioner according to claim 1, wherein before the step of judging whether the temperature and humidity value is smaller than a first preset value, the method further comprises the following steps:
resetting a timer to a preset time and starting the timer to count down;
when the time of the timer is zero, the next method is performed.
5. An energy-saving control device of an air conditioner for a vehicle, characterized by comprising:
a detection module: when the starting of the air conditioner is detected, switching an internal and external circulation air door of the air conditioner to an internal circulation air door;
a judging module: detecting temperature and humidity values in the vehicle, judging whether the temperature and humidity values are smaller than a first preset value,
if yes, stepping an internal and external circulation air door of the air conditioner by a specified amount towards the internal circulation air door;
and if not, stepping the internal and external circulating air doors of the air conditioner by a specified amount.
6. The energy-saving control device of an air conditioner for a vehicle according to claim 5, further comprising, after "if not, stepping an inside and outside circulation damper of the air conditioner by a specified amount" the step further comprising:
a judging module: when the detection value of the temperature and humidity sensor is larger than a second preset value, the internal and external circulation air door of the air conditioner is stepped to the external circulation air door;
a control module: and opening a front defrosting air outlet.
7. The apparatus of claim 5, wherein the step of stepping the air conditioner internal and external circulation dampers by a predetermined amount toward the internal circulation damper further comprises:
a detection module: and when the opening of the front defrosting air outlet is detected, the front defrosting air outlet is closed.
8. The energy-saving control device of the air conditioner of the automobile as claimed in claim 5, further comprising before the step of determining whether the temperature and humidity value is less than a first preset value:
a timing module: resetting a timer to a preset time and starting the timer to count down;
a judging module: when the time of the timer is zero, the next method is performed.
9. An electronic device comprising a memory, a processor, a bus and a computer program stored on the memory and executable on the processor, the processor implementing the steps of any of claims 1 to 4 when executing said program.
10. A storage medium having stored thereon a computer program, characterized in that the program realizes the steps of any of claims 1-4 when executed by a processor.
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| CN112895841A (en) * | 2021-03-24 | 2021-06-04 | 国机智骏汽车有限公司 | Vehicle-mounted air conditioner control method and device of electric vehicle and vehicle |
| WO2021179913A1 (en) * | 2020-03-10 | 2021-09-16 | 长城汽车股份有限公司 | Operating method for air conditioning system for vehicle |
| CN113665320A (en) * | 2021-09-08 | 2021-11-19 | 东风柳州汽车有限公司 | Vehicle air conditioner external circulation control method, device, equipment and storage medium |
| CN114683799A (en) * | 2020-12-29 | 2022-07-01 | 比亚迪股份有限公司 | Automobile air conditioner control method and automobile |
| CN115257286A (en) * | 2022-07-29 | 2022-11-01 | 重庆长安汽车股份有限公司 | Vehicle air conditioner control device and method and vehicle |
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