CN115122875A - Method for adjusting a blow-out grille assembly of a motor vehicle and blow-out grille assembly - Google Patents
Method for adjusting a blow-out grille assembly of a motor vehicle and blow-out grille assembly Download PDFInfo
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- CN115122875A CN115122875A CN202111199408.2A CN202111199408A CN115122875A CN 115122875 A CN115122875 A CN 115122875A CN 202111199408 A CN202111199408 A CN 202111199408A CN 115122875 A CN115122875 A CN 115122875A
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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
- B60H1/34—Nozzles; Air-diffusers
- B60H1/3414—Nozzles; Air-diffusers with means for adjusting the air stream direction
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides an air conditioner zone control method based on an automobile automatic adjustable blowing surface air outlet grille assembly, wherein the method comprises the following steps: judging the number and the positions of passengers in the vehicle; judging the heat load at the preset comfortable temperature of the whole vehicle according to the external sunlight intensity, the internal and external temperature difference and the external circulation fresh air volume; determining the total refrigerating capacity (total air quantity, compressor rotating speed and the like) of the automobile air conditioner according to the heat load; determining different blowing angles and blowing amounts required by the respective occupants according to the intensity of sunlight, dry/wet bulb temperature and wind speed around each occupant based on the discomfort index; the microclimate around each passenger is automatically adjusted by independently controlling the blowing angle and the opening degree of the adjustable air outlet grille in the area where each passenger is located, and finally the one-person-one-climate partition air conditioning effect is achieved. The method realizes the intelligent control of the air outlet grille assembly of the automobile blowing surface, thereby realizing the intelligent regulation of the temperature in the automobile.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a method for adjusting a blowing surface air-out grille assembly of an automobile and the blowing surface air-out grille assembly.
Background
At present, the air supply direction and the air supply quantity of a single blowing surface air outlet of an automobile on the market are generally changed in a mode of manually adjusting the angle of a grille (a dial type, a knob type or a wave wheel type), and drivers and passengers at different positions on the automobile can manually adjust the air supply direction and the air supply quantity required by the drivers and passengers according to the microclimate around the drivers and the passengers to meet the cooling requirements of the drivers and the passengers.
However, the real vehicle conditions are variable, for example, the conditions are different in sunlight and tunnels in the open air and high temperature weather, or the sunlight irradiation area changes due to the change of the vehicle driving direction, so that the vehicle needs to be timely and frequently adjusted by drivers and passengers according to the change of the conditions, and the adjusting mode is not efficient and intelligent. The technical scheme of the existing automatic adjustment automobile air outlet grille basically adjusts a single grille based on single temperature difference load, and temperature control is not intelligent and integrated enough.
Disclosure of Invention
The invention solves the main problems that the air outlet direction and the air outlet quantity of the existing automobile air outlet face need to be manually adjusted and the comfort of the human body is poor.
According to one aspect of the present invention, there is provided a method of adjusting a blow-out grille assembly of an automobile, the method comprising:
judging the number and the positions of passengers in the vehicle;
judging the heat load at the preset comfortable temperature of the whole vehicle according to the external sunlight intensity, the internal and external temperature difference and the external circulation fresh air volume;
determining the total refrigerating capacity of the automobile air conditioner according to the heat load;
calculating an uncomfortable index according to the sunlight intensity, the dry bulb temperature, the wet bulb temperature and the wind speed of the periphery of each passenger, and determining the blowing angle and the air output required by each passenger based on the uncomfortable index;
and respectively controlling the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located based on the blowing angle and the air-out quantity required by each passenger.
Furthermore, after the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located are respectively controlled and the microclimate around each passenger is automatically adjusted, the method also comprises the following steps:
and discharging the redundant refrigerating capacity exceeding the total air output of all passengers based on the total refrigerating capacity.
Further, based on the total refrigerating capacity, discharging the redundant refrigerating capacity exceeding the total air output of all passengers further comprises the following steps:
and if no passenger seat exists in the vehicle, the redundant refrigerating capacity is discharged from a blowing surface air outlet at the position of the no passenger seat.
Further, based on the total refrigerating capacity, discharging the redundant refrigerating capacity exceeding the total air output of all passengers further comprises the following steps:
and if the seat in the vehicle is full of passengers, the redundant refrigerating capacity is discharged from the foot blowing air outlet.
Further, based on the total refrigerating capacity, discharging the redundant refrigerating capacity exceeding the total air output of all passengers further comprises the following steps:
and if the seats in the automobile are full of passengers, the redundant refrigerating capacity is discharged after the air conditioner is adjusted to be in the defrosting mode.
Furthermore, after the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located are respectively controlled and the microclimate around each passenger is automatically adjusted, the method also comprises the following steps:
readjusting the target comfort temperature in different zones according to any subsequent comfort requirement of the passengers;
and re-adjusting the air supply angle and the opening degree of the blowing surface air outlet grille of the area where each passenger is located according to the adjusted target comfortable temperature.
According to another aspect of the present invention, the present invention further includes a face-blowing air-out grille assembly for an automobile, where the face-blowing air-out grille assembly includes a plurality of face-blowing air-out grills disposed in the automobile, and a controller in communication with the face-blowing air-out grills, and the controller can control the face-blowing air-out grills to implement any one of the methods for adjusting the face-blowing air-out grille assembly for an automobile.
According to another aspect of the present invention, a storage medium is also disclosed, which is a computer-readable storage medium having stored thereon an executable computer program for executing the method for adjusting a blow-out grille assembly of an automobile as described in any one of the preceding paragraphs when the executable computer program is started.
On the basis of a general automatic air conditioning system, the invention obtains the optimal solution of comfortable air supply angle and air supply quantity of each driver and passenger by heat load calculation according to the peripheral microclimate of each driver and passenger on the premise of ensuring the heat load balance of the whole vehicle, further obtains the total air output quantity and the air output temperature of the whole vehicle, and correspondingly automatically adjusts an air outlet grille to realize the temperature control of the space of the whole vehicle. In addition, the method can also automatically perform multi-region zone control on the air outlet grille according to the respective comfort requirement of each passenger and the set temperature, so that each driver and passenger can be in the respective comfort range.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view illustrating a method for adjusting an air outlet grille assembly of an automobile according to an embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In one embodiment, as shown in fig. 1, a method for adjusting a blow-out grille assembly of an automobile is provided, the method comprising:
the number and the positions of passengers in the vehicle are judged firstly, specifically, the judgment can be carried out according to a built-in weight sensor of the seat, the position of a headrest and a backrest angle sensor, and the identification can also be carried out by adopting a camera for shooting. And then according to the intensity of the sunlight outside the vehicle, the temperature difference between the inside and the outside of the vehicle and the external circulation fresh air quantity collected by the current vehicle, judging the heat load under the preset whole vehicle comfortable temperature (which can be set in advance through a control panel). The total cooling capacity of the vehicle air conditioner is determined according to the heat load, and an uncomfortable index is calculated according to the sunlight intensity, the dry bulb temperature, the wet bulb temperature and the wind speed around each passenger. Based on the calculated discomfort index, the blowing angle and the blowing amount required by each occupant are determined. And then the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located are respectively controlled according to the blowing angle and the air output required by each passenger, so that the microclimate around each passenger is automatically adjusted, and the ambient temperature in the automobile accords with the comfort index.
In some embodiments, after the air outlet angle of the air outlet grille of the corresponding area is adjusted according to the air blowing angle and the air outlet amount required by each passenger, the redundant refrigerating capacity exceeding the total air outlet amount of all passengers can be discharged based on the total refrigerating capacity in the vehicle.
Specifically, based on the total cooling capacity, discharging the excess cooling capacity exceeding the total air output of all the passengers comprises: if no passenger seat exists in the vehicle, the redundant refrigerating capacity is discharged from the blow-out port at the position of the no passenger seat. If the seat in the vehicle is full of passengers, the redundant refrigerating capacity is discharged from the foot blowing air outlet, or the redundant refrigerating capacity is discharged after the air conditioner is adjusted to the defrosting mode.
In some embodiments, the target comfort temperature may be readjusted in different zones according to the comfort requirement of each passenger in the passenger zone, and then the air supply angle and the air output of the air outlet grille in the zone where each passenger is located may be readjusted according to the readjusted target comfort temperature, so that the air outlet grille of the passenger zone that needs to be adjusted may be adjusted only on the premise of ensuring that the microclimate of other passenger zones or passenger-free zones does not fluctuate appreciably.
In another embodiment, a face-blowing air-out grille assembly for an automobile is further disclosed, where the face-blowing air-out grille assembly includes a plurality of face-blowing air-out grills disposed in the automobile, and a controller in communication connection with all the face-blowing air-out grills, and the controller can control the face-blowing air-out grills to implement the method for adjusting the face-blowing air-out grille assembly for an automobile according to any one of the foregoing embodiments.
The working principle of the invention is explained below in connection with simulation calculations.
Taking a 5-seat automobile (with the maximum load of 4kw under the standard working condition) which is opened towards the south at noon as an example, 3 people are seated on the automobile and respectively positioned at the rear sides of a main driving mode, a vice driving mode and a rear row main driving mode, the temperature of the day is 36 ℃, the sunlight intensity is 800W/square meter, the initial temperature in the automobile is 48 ℃, only the front row position can be sunned, the rear row has no direct sunlight, the comfortable temperature of the air conditioner during starting is set to be 22 ℃ by default, and the internal circulation is performed, so that the air conditioner blower of the whole automobile can fully blow the maximum wind quantity of 500m in full blowing surface 3 The operation is carried out in h, and the nominal refrigerating capacity is 3.6 kw.
When the average temperature in the vehicle is reduced to 32 ℃, the outlet air temperature is still above 20 ℃, and a microclimate discomfort index calculation formula is used for calculating a real-time discomfort index value:
Id＝0.72*(Td+Tw)-7.2*(u)^0.5+0.03*J+40.6(1)
in the formula, Id is a weather discomfort index, Td (DEG C) is the average dry bulb temperature around the human body, Tw (DEG C) is the average wet bulb temperature around the human body, u (m/s) is the average wind speed around the human body, J (W/square meter) is the average sunlight intensity around the human body, and the data are acquired by temperature, humidity, sunlight intensity and wind speed sensors arranged around the human body in real time. In practice, the discomfort index is generally between 60 and 72, the specific value being calibrated for each type of vehicle.
In some embodiments, it is preferable to set the comfort temperature of the whole vehicle to 22 ℃, which corresponds to an uncomfortable index of 64, and each temperature step of one degree corresponds to an uncomfortable index of 2, i.e. to set the temperature to 26 ℃, which corresponds to an uncomfortable index of 72.
As can be known from simulation calculation, the front row needs to be fully opened, the controller in the vehicle automatically adjusts the angle of the blowing surface air outlet grille to enable the surface wind speed of the human body to reach more than 2m/s, and the air supply covers the chest, the abdomen and the arms of the face of the human body (the angle of the grille to be adjusted is determined according to the calibration of the real vehicle), so that the surface temperature of the human body in the areas approaches the air supply temperature. At this time, the microclimate discomfort index of the front row of people is more than 85, the people still feel heat, but the maximum capacity of the air conditioning system is reached at this time, and the front row of people cannot be adjusted any more. At the moment, the rear row area has no direct sunlight (the scattering radiation intensity of 150W/square meter) and the temperature enters a comfortable area, the whole temperature in the automobile is still 32 ℃, the air outlet temperature is above 20 ℃, the grille of the rear row passenger area is also completely opened, and the air supply angle is adjusted to enable the air supply to cover the chest, the abdomen and the arms of the face of the human body. And closing all the blowing surface air outlet grilles in the rear row unmanned seating area, so that all the air supply is directly blown to people, and the temperature of all the driver and passenger areas is quickly changed into the temperature of the comfortable area.
When the average temperature in the vehicle is reduced to 22 ℃, the air outlet temperature is about 11 ℃, the microclimate comfort index is calculated, the front row needs to be fully opened, the angle of the grille is adjusted, the surface wind speed of the human body reaches more than 2m/s, the air supply covers the chest, the belly and the arms of the human body face (the specific grille angle is determined according to the actual vehicle calibration), the surface temperature of the areas is close to the air supply temperature, the microclimate discomfort index of the front row is 69, and the front row enters the optimal area of the comfort area. With the reduction of the temperature in the vehicle and the temperature of the supplied air, the rear row has no direct sunlight, and in order to ensure that the microclimate of the passengers on the rear row can be kept in a comfortable area, all the grilles on the rear row are closed, the uncomfortable index of the passengers on the rear row is 69, and the passengers on the rear row are also in an optimal area.
Because the discomfort index obtained by calculation is the group index, if the rear-row passengers still feel hot at the moment, the target comfortable temperature can be independently controlled to be reduced to 20 ℃, and the controller adjusts the blowing surface air-out grille of the microclimate area where the rear-row passengers are located according to the set target comfortable temperature so as to open the microclimate area at a certain angle. At the moment, the air outlet volume is about 30% of the full-open time (specifically determined according to actual vehicle calibration), the angle of the grille is adjusted, the air blowing only covers the abdomen and the chest region, the surface air speed of the human body in the region is about 0.5m/s, and the uncomfortable index of the passengers in the back row is reduced to 65. If the rear passenger does not feel hot but cold at this time, the target comfort temperature of the area in which the rear passenger is located may be controlled to 24 degrees celsius. Because the air outlet grille is completely closed at the rear row, the equivalent temperature of the surface of the human body can not be improved by independently reducing the air supply volume of the region and covering the area of the human body with the air supply, so that the total air volume of the whole vehicle needs to be reduced, the discomfort index of the passengers at the rear row is increased by matching with the rotation speed adjustment of the compressor, and the discomfort index of the passengers at the front row is ensured to be stable. If the total air quantity can be reduced to 450m 3 And h, reducing the outlet air temperature to offset the influence of the reduction of the air speed of the air supply, and ensuring that the discomfort index of the front-row passengers is still maintained at about 69. Meanwhile, the air volume is reduced, so that the average temperature in the vehicle is increased, the temperature difference between the front row and the rear row is enlarged, the rear row discomfort index is increased to 71 under the condition that the front row discomfort index is basically unchanged, the requirement of independently increasing the temperature of the rear row is met, the temperature of a microclimate area of the front row is ensured, and the temperature is controlled in a partitioned mode.
When the sun is not directly irradiated in spring and autumn, the blowing surface air outlet grille blows air to a human body, so that the human body feels cold, the discomfort index is as low as 54, and only the opening of the blowing surface air outlet grille in the area where the member is located can be closed. If all seats are occupied, the blowing face air-out grille is adjusted to a state where the occupant is not directly blown at all, and the discomfort index can be provided to about 65. If the person still feels cold at this time, the target comfort temperature of the area where the person is located can be increased. After the target temperature is increased, the air quantity gear and the rotating speed of the compressor reach the lower limit of the air conditioning system, so that the air blowing mode of the air conditioner can be changed into a defrosting mode, the actual air quantity can be reduced due to large wind resistance of the defrosting mode, the refrigerating capacity of the whole vehicle is reduced, the temperature in the vehicle rises along with the temperature, the air outlet of the air outlet grille of the blowing surface is concentrated above the instrument desk of the vehicle, the temperature difference of the front and the rear rows in the vehicle is increased, the regional temperature of drivers and passengers is further increased, and the purpose of temperature adjustment under the limit working condition is achieved.
Compared with the method for directly adjusting the air outlet temperature by making a plurality of mixed air doors in the air conditioning box of the traditional automobile multi-temperature-zone air conditioner, the method adjusts the air outlet amount and the air outlet angle by intelligently adjusting the air outlet grille of the blowing surface of the small area around each passenger, and reduces the cold loss caused by the mixing of cold air and hot air in the direct temperature adjusting process. The multi-temperature zone control with the lowest refrigerating capacity and the lowest energy consumption provided by the air conditioning system is realized.
On the basis of a general automatic air conditioning system, the invention obtains the optimal solution of comfortable air supply angle and air supply quantity of each driver and passenger through numerical calculation on the premise of ensuring the heat load balance of the whole vehicle according to the peripheral microclimate of each driver and passenger, and correspondingly automatically adjusts the air outlet grille, thereby realizing the temperature control of the space of the whole vehicle, and simultaneously carrying out the multi-region regional control of the personalized air outlet grille for blowing the surface according to the individual requirement to ensure that each driver and passenger can be in a comfortable range.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Claims (8)
1. A method of adjusting a blow-out grille assembly of an automotive vehicle, the method comprising:
judging the number and the positions of passengers in the vehicle;
judging the heat load at the preset comfortable temperature of the whole vehicle according to the external sunlight intensity, the internal and external temperature difference and the external circulation fresh air volume;
determining the total refrigerating capacity of the automobile air conditioner according to the heat load;
calculating an uncomfortable index according to the sunlight intensity, the dry bulb temperature, the wet bulb temperature and the wind speed of the periphery of each passenger, and determining the blowing angle and the air output required by the passenger based on the uncomfortable index;
and respectively controlling the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located based on the blowing angle and the air-out quantity required by each passenger.
2. The method of claim 1, wherein after controlling the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located, respectively, the method further comprises the steps of:
and discharging the redundant refrigerating capacity exceeding the total air output of all passengers based on the total refrigerating capacity.
3. The method of claim 2, wherein venting excess cooling capacity in excess of the total air output of all occupants based on the total cooling capacity further comprises the steps of:
and if no passenger seat exists in the vehicle, the redundant refrigerating capacity is discharged from a blowing surface air outlet at the position of the no passenger seat.
4. The method of claim 2, wherein venting excess cooling beyond the total air output of all occupants based on the total cooling further comprises the steps of:
and if the seat in the vehicle is full of passengers, the redundant refrigerating capacity is discharged from the foot blowing air outlet.
5. The method of claim 2, wherein venting excess cooling beyond the total air output of all occupants based on the total cooling further comprises the steps of:
and if the seats in the automobile are full of passengers, the redundant refrigerating capacity is discharged after the air conditioner is adjusted to be in the defrosting mode.
6. The method of claim 1, wherein after controlling the blowing angle and the opening degree of the blowing surface air-out grille of the area where each passenger is located, respectively, the method further comprises the steps of:
readjusting the target comfort temperature of any occupant according to the comfort requirement of the occupant;
and re-adjusting the blowing angle and the opening degree of the blowing surface air-out grille of the area where the passenger is located according to the adjusted target comfortable temperature.
7. A storage medium, characterized in that the storage medium is a computer-readable storage medium having stored thereon an executable computer program for performing, when started, a method of adjusting a blow-out grille assembly of a vehicle according to any one of claims 1-6.
8. An automobile face-blowing air-out grille assembly, characterized in that the face-blowing air-out grille assembly comprises a plurality of face-blowing air-out grilles arranged in an automobile and a controller in communication connection with the face-blowing air-out grilles, wherein the controller can control the face-blowing air-out grilles to realize the method for adjusting the face-blowing air-out grille assembly of the automobile as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199408.2A CN115122875A (en) | 2021-10-14 | 2021-10-14 | Method for adjusting a blow-out grille assembly of a motor vehicle and blow-out grille assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199408.2A CN115122875A (en) | 2021-10-14 | 2021-10-14 | Method for adjusting a blow-out grille assembly of a motor vehicle and blow-out grille assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115122875A true CN115122875A (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111199408.2A Pending CN115122875A (en) | 2021-10-14 | 2021-10-14 | Method for adjusting a blow-out grille assembly of a motor vehicle and blow-out grille assembly |
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| CN (1) | CN115122875A (en) |
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2021
- 2021-10-14 CN CN202111199408.2A patent/CN115122875A/en active Pending
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