CN117048290A - Ventilation device, method and system for passenger room of vehicle - Google Patents
Ventilation device, method and system for passenger room of vehicle Download PDFInfo
- Publication number
- CN117048290A CN117048290A CN202311306407.2A CN202311306407A CN117048290A CN 117048290 A CN117048290 A CN 117048290A CN 202311306407 A CN202311306407 A CN 202311306407A CN 117048290 A CN117048290 A CN 117048290A
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- fan
- preset
- ventilation device
- ventilation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000007613 environmental effect Effects 0.000 claims abstract description 46
- 230000009467 reduction Effects 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000003672 processing method Methods 0.000 claims description 8
- 230000000875 corresponding effect Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a ventilation device, a ventilation method and a ventilation system for a passenger room of a vehicle. The device comprises a setting unit, a control unit and a control unit, wherein the setting unit is used for setting a fan of the ventilation device to run according to a preset rotating speed along with time; the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed. The setting unit is used for acquiring the environmental parameters from the server side in wireless communication connection with the ventilation device, or acquiring the environmental parameters through the environmental parameter acquisition module of the ventilation device, and setting a preset duration threshold according to the environmental parameters. The monitoring unit is used for monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time reaches a preset time threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan. The ventilation device can reduce the time length of the fan in a high-rotation-speed working state, reduce the influence of noise and effectively improve the ventilation air quantity and the wind pressure.
Description
Technical Field
The invention relates to the technical field of ventilation of passenger rooms of vehicles, in particular to a ventilation device, a ventilation method and a ventilation system for passenger rooms of vehicles.
Background
The ventilation function is added to the interior of the passenger room of the vehicle, for example, the ventilation device is added to the seat, so that the rapid circulation replacement of the air in the seat and the surface air can be promoted, visual experience of rapid cooling of the back of the buttocks is brought to the passengers, and cooling and comfort are achieved in the driving process of the consumers in hot weather. The ventilation device mainly affects the ventilation and heat dissipation effects of the ventilation device, including: 1. fan volume, i.e., the volume of air per unit time through the cross-section of the fan inlet or outlet. In general, the greater the air volume of the fan, the better it is, meaning that it can send out/in more air to remove heat. The larger the outer diameter of the fan blade is, the faster the rotating speed is, and the larger the air quantity of the fan is. 2. The fan wind pressure, namely the pressure difference generated between the air outlet and the air inlet can be made by the fan, and the unit is millimeter water column (mmH 2O). As the air flows, the air flow encounters resistance of the fan thermal fin or element in its flow path, which resistance limits the free circulation of air. For normal ventilation, resistance in the fan ventilation stroke needs to be overcome. In the case of other parameter determination, the faster the rotational speed, the greater the fan wind pressure.
That is, the fan air volume is positively correlated with the fan caliber and the fan blade rotational speed, and the fan air pressure is positively correlated with the fan blade rotational speed. In theory, the larger the rotation speed is, the better the ventilation and heat dissipation effects are, because the larger the air quantity and the air pressure are. However, the flowing air is mutually interfered, friction is generated between the flowing air and surrounding objects, the separation effect of the blades on the air flow, the pulse force of periodic air supply and the like can generate noise. The faster the air flow velocity, the more turbulent flow, the more noise the fan tends to be, and the acceleration increases with the increase of the wind speed. Under otherwise identical conditions, fan noise is proportional to the fourth power of the rotational speed. In addition to the fan's own design parameters, the fan speed must also be considered to increase wind noise due to excessive speed, thereby negatively impacting the user experience.
Disclosure of Invention
The invention aims to provide a ventilation device, a ventilation method and a ventilation system for a passenger room of a vehicle.
The technical scheme adopted for solving the technical problems is as follows: a ventilation device for a passenger compartment of a vehicle, comprising:
the setting unit is used for setting the fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed; moreover, acquiring environmental parameters from a server side in wireless communication connection with the ventilation device, or acquiring the environmental parameters through an environmental parameter acquisition module of the ventilation device, and setting a preset duration threshold according to the environmental parameters;
wherein the environmental parameters include an in-vehicle temperature and/or a current outdoor temperature;
the monitoring unit is used for monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches the preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
In addition, the invention also provides a ventilation treatment method of the passenger room of the vehicle, which is applied to the ventilation device, and the method comprises the following steps:
setting a fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
acquiring environmental parameters from a server side in wireless communication connection with the ventilation device, or acquiring the environmental parameters through an environmental parameter acquisition module of the ventilation device, and setting a preset duration threshold according to the environmental parameters;
wherein the environmental parameters include an in-vehicle temperature and/or a current outdoor temperature;
monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches the preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a preset rule to work as the rotating speed of the fan.
In addition, the invention also provides a ventilation treatment method of the vehicle passenger room, which is applied to a ventilation device of the vehicle passenger room, and comprises the following steps:
Setting a fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches a preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
Further, in the ventilation treatment method for the passenger room of the vehicle, the ventilation device comprises M fans, M is more than or equal to 2, and the method further comprises the steps of:
and setting the starting time of each fan according to a second preset rule so as to control the initial phase of the noise wave generated by each fan, so that the signal amplitude of the noise wave is mutually weakened after the signals are overlapped.
Further, in the ventilation processing method for a passenger compartment of a vehicle according to the present invention, the fan includes 1 st to M-th fans; the start time of the No. 1 fan is tau 0 The corresponding ith fan has a start time of τ i I is more than or equal to 2 and less than or equal to M; the rotating speed of the fan is N, and the rotating period of the fan is T=60/N;
the setting the starting time of each fan according to the second preset rule includes:
the start time tau of the ith fan i =τ 0 +K i * T is a T; wherein K is i Is a preset proportionality coefficient; the preset proportional coefficient K of two adjacent fans i Are not equal.
Further, in the ventilation processing method for a passenger compartment of a vehicle according to the present invention, the preset proportionality coefficient K i =(i-1)/M。
Further, in the ventilation treatment method of the passenger room of the vehicle, the ventilation device comprises M fans, M is more than or equal to 2, and the first rotating speed comprises Q first sub-rotating speeds N which are not equal to each other j J is more than or equal to 1 and less than or equal to Q; the method further comprises the steps of:
setting each fan to select the first sub-rotating speed N in a set working time j Any one of them works; in addition, the total air quantity of each fan is equal in the set accumulated working time;
the set accumulated working time length is the sum of a plurality of set working time lengths.
Further, in the ventilation processing method for a passenger compartment of a vehicle according to the present invention, q=m; the set working time length comprises m sub-set working time lengths, m is more than or equal to 2, and the set accumulated working time length is the sum of m sub-set working time lengths; q first sub-rotational speeds N j Arranged in a ring array;
selecting the first sub-rotation speed N in the set working time period of each fan j Any one of the steps of working, including:
setting the j-th fan at the first sub-rotation speed N in the annular array j The starting point is used as the rotating speed of the fan in the 1 st sub-set working time period to work, and the rotating speed of the fan in the 2 nd to m th sub-set working time periods is sequentially and circularly selected from the annular array to work; wherein j is more than or equal to 1 and M is more than or equal to 1.
In addition, the invention also provides an automobile seat ventilation control system, which comprises a ventilation device and a server, wherein the ventilation device is in wireless communication connection with the server;
the server side is used for acquiring the current position and the environmental parameter of the ventilation device and sending the preset rotating speed, the preset duration threshold value and/or the first preset rule determined according to the current position and the environmental parameter to the ventilation device; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
The ventilation device is used for sending the current position and/or the collected environmental parameters to the server, a fan of the ventilation device is set to run according to the preset rotating speed along time, the continuous working time when the fan runs at the initial preset rotating speed is monitored, and when the continuous working time reaches a preset time threshold, the corresponding rotating speed is selected from the first rotating speed and the second rotating speed according to the first preset rule to work as the rotating speed of the fan.
In the ventilation control system for the automobile seat, the ventilation device comprises M fans, M is more than or equal to 2, and the ventilation device is further used for setting the starting time of each fan according to a second preset rule so as to control the initial phase of noise waves generated by each fan, so that the signal amplitude of the noise waves is mutually weakened after the signals are overlapped.
The ventilation device, the ventilation method and the ventilation system for the passenger room of the vehicle have the following beneficial effects: by setting the preset time threshold, the continuous working time of the fan running at the high rotating speed is monitored in real time, and the time of the fan in the high rotating speed working state can be reduced, so that the noise influence is reduced, and the ventilation air quantity and the wind pressure are effectively improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart of a ventilation treatment method for a passenger compartment of a vehicle provided by an embodiment of the invention;
fig. 2 is a flowchart of a ventilation processing method for a passenger compartment of a vehicle according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for ventilating a passenger compartment of a vehicle according to an embodiment of the present invention;
FIG. 4 is a graph of the flapping phenomenon for a multi-fan combination;
fig. 5 is a schematic structural diagram of an automobile seat ventilation control system according to an embodiment of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In a preferred embodiment, referring to fig. 1, the ventilation treatment method of the vehicle passenger compartment of the present embodiment is applied to a ventilation device of the vehicle passenger compartment, and in particular, may be applied to a ventilation system of a seat of the vehicle passenger compartment, and the method includes the following steps:
s1, a fan provided with a ventilation device runs according to a preset rotating speed along with time. The preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed. The initial preset rotating speed is larger than the noise reduction preset rotating speed, the noise reduction preset rotating speed at least comprises a first rotating speed, a second rotating speed, a third rotating speed, a fourth rotating speed and the like, the number of specific rotating speeds is not limited, and the noise reduction preset rotating speed is set according to specific requirements.
S2, monitoring the continuous working time when the fan runs at the initial preset rotating speed. When the continuous working time reaches a preset time threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
Optionally, the first preset rule is a circulation rule, that is, when the duration reaches the preset duration threshold, the fan is controlled to circularly rotate according to the first rotation speed and the second rotation speed. Alternatively, the duration of the first rotation speed and the duration of the second rotation speed may be different, for example, if the duration of the first rotation speed is 10s and the duration of the second rotation speed is 15s, when the duration of the continuous operation reaches the preset duration threshold, the fan is controlled to rotate in a cycle by taking the continuous rotation of the second rotation speed for 15s after the continuous rotation of the first rotation speed for 10s as a cycle. That is, the circulation rule is that in a first stage, the fan is controlled to rotate at a first rotational speed for a first duration, in a second stage, the fan is controlled to rotate at a second rotational speed for a second duration, and then the first stage and the second stage are cyclically performed. The number of the specific stages is determined according to the number of the noise reduction preset rotating speeds, and the magnitude relation among the rotating speeds set in each stage can be set in order from high to low or from low to high, for example, assuming that four stages are total, the first rotating speed of the first stage can be 4900, the rotating speed of the second stage is 4000, the rotating speed of the third stage is 4500, and the rotating speed of the fourth stage is 3800.
Alternatively, the fan may be controlled to rotate cyclically in accordance with a cycle by continuously rotating the fan at the first rotational speed for 10s and then continuously rotating the fan at the second rotational speed for 15s as a cycle after the initial preset rotational speed is continued for a certain time (may be a preset time threshold), that is, the initial preset rotational speed may be also included in the cycle when the continuous operation time reaches the preset time threshold.
Optionally, a data model is built for the ventilation and heat dissipation effect, and a time threshold for continuous high-rotation-speed operation is set in combination with the experimental measured value. When the ventilation device starts high-rotation-speed working for a period of time and reaches a set time threshold, the ventilation device automatically exits the high-rotation-speed working mode.
In general, heat dissipation efficiency influencing factors of a ventilation system of an automobile seat include:
(1) The fan air quantity, i.e. the air volume passing through the section of the air outlet (or air inlet) of the fan in unit time, is an important factor for determining the heat dissipation effect. In general, the greater the air volume of the fan, the better it is, meaning that it can send out/in more air to remove heat. The air volume can be calculated according to the following formula:
wherein L is the air quantity of the ventilator, and the unit is: m is m 3 S; d is the outer diameter of the impeller of the ventilator, and the unit is: m; q is a flow coefficient and is related to the type of the fan; mu is the peripheral speed of the impeller outer diameter in units of: m/s.
Wherein n is the rotation speed of the ventilator, and the unit is: r/min.
As can be seen from the formula, the larger the outer diameter of the fan blade is, the faster the rotating speed is, and the larger the air quantity of the fan is.
(2) Fan wind pressure is another important factor affecting the heat dissipation effect. As the air flows, the air flow encounters resistance of the fan thermal fin or element in its flow path, which resistance limits the free circulation of air. For normal ventilation, resistance in the fan ventilation stroke needs to be overcome. Wind pressure, i.e. the pressure difference between the air outlet and the air inlet, in mm water column (mmH) 2 O) may be represented by the following formula:
H＝ρH 1 μ 2
wherein H is the full pressure of the ventilator, mmH2O; ρ is the gas density, kg/m3; h 1 Is a pressure coefficient, and is related to the blade type; mu is the peripheral speed of the impeller outer diameter in units of: m/s.
As can be seen from the above formula, the faster the rotational speed, the greater the partial pressure, with other parameters determined.
It can be seen that the fan air volume is positively correlated to the fan caliber and the fan blade rotational speed, and the fan air pressure is positively correlated to the fan blade rotational speed.
Wind noise is an important index affecting consumer product experience, flowing air is mutually interfered, friction is generated between the flowing air and surrounding objects, the separation effect of blades on air flow, the pulse force of periodic air supply and the like can generate noise. The faster the air flow velocity, the more turbulent flow, the larger the wind noise, and the acceleration of the wind speed is increased. Under otherwise identical conditions, fan noise is proportional to the fourth power of the rotational speed.
That is, the rotation speed of the fan is limited by design parameters of the fan, and the increase of wind noise caused by the too high rotation speed must be considered to have negative influence on the user experience. Therefore, on the premise of not influencing the product experience of users, the time length of the fan in the high-rotation-speed working state is required to be reduced as much as possible when the product runs.
In this embodiment, by setting the preset duration threshold, the duration of the fan running at the high rotation speed is monitored in real time, so that the duration of the fan in the high rotation speed working state can be reduced, the noise influence is reduced, and the ventilation air volume and the wind pressure are effectively improved.
Alternatively, the preset duration threshold may be set by acquiring an environmental parameter and according to the current environmental parameter. Wherein the environmental parameters include, but are not limited to, in-vehicle temperature, in-vehicle humidity, current outdoor temperature, current outdoor humidity, and the like.
For example, a preset duration threshold for operation of the fan at the initial preset rotational speed and the noise reduction preset rotational speed may be set based on real-time acquisition of the ambient temperature. In addition, a temperature threshold value for exiting the high-rotation-speed operation can be set, namely, when the current temperature is detected to reach the requirement of meeting the temperature threshold value (for example, the current temperature in the vehicle is lower than the set threshold value) and the duration of the fan at the rotation speed does not reach the preset duration threshold value, the high-rotation-speed operation mode can be automatically exited.
In the ventilation processing method of the passenger room of the vehicle in some embodiments, under the condition that the caliber of a single fan is limited, the whole ventilation quantity can be increased by a mode of combining (i.e. connecting in parallel) multiple fans. That is, the ventilation device comprises M fans, M is more than or equal to 2, and the ventilation quantity when a plurality of fans are combined can be represented by the following formula:
wherein L is the integral ventilation quantity of the combined fan; l (L) i The ventilation quantity of the single fan; lambda (lambda) i Is the efficiency coefficient when the fans are combined.
Referring to fig. 2, the method further comprises the steps of:
s3, setting the starting time of each fan according to a second preset rule so as to control the initial phase of the noise wave generated by each fan, and enabling the signal amplitude of the noise wave to be mutually weakened after the signals are overlapped.
Specifically, the fans include 1 st to M-th fans; the start time of the 1 st fan is tau 0 The corresponding ith fan has a start time of τ i I is more than or equal to 2 and less than or equal to M; the rotation speed of the fan is N, and the windThe rotation period of the fan is T=60/N;
setting the starting time of each fan according to a second preset rule, including:
start time τ of ith fan i =τ 0 +K i * T is a T; wherein K is i Is a preset proportionality coefficient; preset proportionality coefficient K of two adjacent fans i Are not equal. Preset proportionality coefficient K i =(i-1)/M。
In this embodiment, the initial phase of fan operation is controlled by controlling the start time of the fan, so that the signal amplitudes of the noise generated by different fans after superposition are mutually weakened, and the wind noise is reduced while the efficient heat dissipation is satisfied, thereby improving the use experience of the product.
Since the ventilation noise of the single fan type car seat ventilation system is mainly derived from noise generated by the fan itself when the fan is operated, and wind noise generated during ventilation. In the fan combined (parallel type) seat ventilation system, ventilation noise includes not only fan body noise and wind noise during ventilation, but also noise superposition effect generated when a plurality of fans are combined to work.
Taking a seat ventilation system with two fans combined in parallel as an example, noise is simplified into inter-harmonic waves, and the noise superposition effect of the multi-fan seat ventilation system is qualitatively analyzed.
The noise of a monoblock fan can be expressed simply as a function of:
wherein A is the amplitude of noise wave; omega is the frequency of noise wave and is related to the rotation speed of the fan; phi is the initial phase of the noise wave and is related to the start time of the fan.
Then, the noise of the fan 1 is expressed as:
（1）
the noise of the fan 2 is expressed as:
（2）
And (3) superposing two fan noises to obtain:
（3）
the function expression after the synthesis of the two inter-harmonic functions is calculated by mathematic operation:
（4）
wherein,
（5）
the multi-fan combined seat ventilation system can select the same type of fans and can control several fans to run at the same rotating speed. At this time, the simplified harmonic frequencies between wind noise generated by ventilation of each fan are approximately the same, namely:
ω1 =ω2
in this case, the formula (5) can be further simplified as:
（6）
based on the formula (6), the relation between the amplitude and the initial phase of the signal synthesized by the two simple harmonics with the same direction and the same frequency can be analyzed.
If the initial phases of the simplified harmonics of the same frequency in the same direction of the two columns are the same
，(k=0,±1,±2,…)，
This gives:
（7）
as can be seen from equation (7), the superimposed signal amplitudes mutually reinforce (noise-enhance) when the initial phases are the same.
If the phases of the simple harmonics of the same direction and same frequency of the two columns are opposite (180 DEG different), then
，(k=0,±1,±2,…)，
This gives:
（8）
as can be seen from equation (8), when the initial phases are opposite, the superimposed signal amplitudes mutually decrease (noise decreases).
It can be seen that by controlling the initial phase of operation of the fans, the signal amplitudes of the noise generated by the different fans after superposition can be reduced.
Illustratively, taking a seat ventilation system of 2 fans as an example, the initial phase is controlled as follows:
If the fan rotation speed is n, unit: the rotation period of the fan is as follows:
t=60/n (unit: s)
The half period of the available fan rotation is:
t' =30/n (unit: s)
If the start time of the fan 1 is τ 0 The start-up time of the fan 2 may be set as:
τ 1 = τ 0 +30/n
the initial phases of the two fans are controlled in the above manner, so that the signal amplitudes of the noise generated by the two fans are mutually weakened after superposition, and the purpose of reducing the noise is achieved.
In this embodiment, the initial phase of fan operation is controlled by controlling the start time of the fan, so that the signal amplitudes of the noise generated by different fans after superposition are mutually weakened, and the wind noise is reduced while the efficient heat dissipation is satisfied, thereby improving the use experience of the product.
In the ventilation treatment method for a passenger compartment of a vehicle according to some embodiments, as shown in fig. 4, a "beat" phenomenon is easily present in a multi-fan (i.e., the ventilation device includes M fans, M is greater than or equal to 2%) combined seat ventilation system, and particularly, when two simple harmonics with small frequency differences in the same direction are superimposed, the amplitude of the waveform after the superposition will be periodically strong or weak with time, and this phenomenon is called "beat" phenomenon. Because manufacturing and assembling errors are unavoidable, even fans of the same model are inevitably subject to certain parameter deviations among different individuals. For a multi-fan combined seat ventilation system, if the main control unit controls each fan to run at the same frequency and amplitude, the objective effect would be that the working frequency and amplitude of each fan are not exactly the same, but there is some minor difference. The working state with the amplitude and the frequency close to each other can be easily triggered to generate the beat vibration phenomenon. Because the ventilation fan triggers obvious beat vibration of noise in the vehicle, on one hand, the total sound pressure level of the noise in the vehicle can be increased, and on the other hand, the generated beat frequency is in a low frequency range sensitive to human body, and physiological fatigue and dysphoria can be caused.
Based on the above, for several fans in a seat ventilation system, under the condition that the basic rotation speeds are kept to be approximately the same, the rotation speed of each fan can be finely adjusted to a certain extent through the main control unit, so that the actual working rotation speeds of the several fans are different, the actual working frequency and the wind pressure amplitude among the fans are also pulled apart by a certain gap, the condition of forming beat vibration is destroyed, and the occurrence of the beat vibration phenomenon is controlled. However, after the rotational speeds of the fans in the fan group are differently set, ventilation and heat dissipation efficiency of the fans are also different, and because the seat area corresponding to each fan is different, consumers experience that the ventilation and heat dissipation of each area of the seat are uneven, and product user experience is affected.
Specifically, the setting of the first rotational speed includes Q first rotation speeds, each of which is not equal to the otherSub-rotation speed N j J is more than or equal to 1 and less than or equal to Q; referring to fig. 3, the method further comprises the steps of:
S4, setting each fan to select a first sub-rotating speed N within a set working time j Any one of them works; and the total air quantity of each fan is equal in the set accumulated working time. Wherein, the set accumulated working time length is the sum of a plurality of set working time lengths.
Preferably, as shown in table 1, q=m, the set working time length includes M sub-set working time lengths, M is greater than or equal to 2, and the set accumulated working time length is the sum of the M sub-set working time lengths; q first sub-rotational speeds N j Arranged in a ring array; selecting a first sub-rotation speed N in a set working time period when each fan is set j Any one of the steps of working, including:
setting the jth fan to the first sub-rotation speed N in the annular array j The starting point is used as the rotating speed of the fan in the 1 st sub-set working time period to work, and the rotating speed of the fan in the 2 nd to m th sub-set working time periods is sequentially and circularly selected from the annular array to work; wherein j is more than or equal to 1 and M is more than or equal to 1.
TABLE 1
In the table, t1, t2, t 3, … …, the operation time length is set for m sub-sets.
As shown in table 2, for example, a seat ventilation system composed of 4 fans is taken as an example, and the rotational speeds of the respective fans are set as follows:
TABLE 2
It should be noted that, in this embodiment, although only the first rotational speed is set correspondingly to the first sub rotational speed, for all preset noise reduction rotational speeds, for example, the second rotational speed, the third rotational speed, and the like, the fan may be controlled to rotate correspondingly to the second rotational speed, the third rotational speed, and the like according to the manner of setting the corresponding first sub rotational speed for the first rotational speed in this embodiment.
In this embodiment, through carrying out the fine setting of certain degree to the rotational speed of every fan for the actual operating rotational speed of several fans is different to some extent, simultaneously in setting for cumulative operating duration, guarantees that the total amount of wind of each fan equals, can reduce and clap the phenomenon of shaking, reduces wind noise, improves user experience.
In general, a car seat ventilation system will be provided with several different ventilation air volume levels. The user can adjust the air quantity gear in time according to the environmental temperature and humidity change so as to meet the personalized requirement of the user on ventilation air quantity. However, this approach has significant drawbacks:
1) In the long-distance driving process, the environmental temperature and humidity change is large, and a user may need to adjust the ventilation air quantity for multiple times, so that a certain risk is brought to driving safety;
2) The user is aware of the need to adjust the air volume when the current through air volume is perceived to be significantly uncomfortable (supercooling or overheating continues for a period of time). Thus, in this mode, the user is often in an uncomfortable state;
3) When the user just activates the seat ventilation function, the maximum air volume level is often selected and maintained for a long time. Under the maximum air volume gear, the running wind noise is large, the power consumption of the equipment is large, and the physical health of the user can be damaged due to the fact that the body part of the user is too low in temperature for a long time.
In view of this, in another preferred embodiment, as shown in fig. 5, the ventilation control system for an automobile seat of the present embodiment includes a ventilation device and a server side, where the ventilation device is connected to the server side in wireless communication.
The server side is used for acquiring the current position and the environmental parameters of the ventilation device and sending the preset rotating speed, the preset duration threshold value and the first preset rule determined according to the current position and the environmental parameters to the ventilation device. The preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed. The initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed.
The fan of the ventilation device is set to run according to the preset rotating speed along with time, the continuous working time when the fan starts to run at the preset rotating speed is monitored, and when the continuous working time reaches a threshold value of the preset time, the corresponding rotating speed is selected from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
Specifically, the server side comprises a third party API, a database and a system main program, and the ventilation device comprises a power management module, a main control unit, a man-machine interaction module, a communication module, a memory and an execution unit. The automobile seat ventilation system takes the main control unit as an information processing, instruction receiving and command control core, takes the cooling fan (comprising a blowing fan, a blowing fan lamp and the like) as an execution unit, conforms to the setting of an embedded software program in the main control unit, increases the ventilation function for the interior of the automobile seat, promotes the rapid circulation and replacement of the air in the seat and the surface layer, further brings visual experience of rapid cooling of the back of the buttocks to passengers, and enables the consumers to obtain coolness and comfort in the driving process of hot weather.
It should be noted that, the server side may obtain the corresponding environmental parameters through the third party API according to the current location information of the ventilation device through the positioning information such as GPS and beidou.
Optionally, the communication module may be a mobile communication module such as 2G, 4G, 5G, etc., and establishes data communication with the server through the mobile internet, or may be a WIFI module, accesses the internet through a suitable network hotspot, establishes data communication with the server, or may be a WIFI module, a bluetooth module, etc., indirectly accesses the internet with a smart phone or other devices with communication functions as an intermediary, and establishes connection with the server and generates data. The man-machine interaction module can be a wired control key, a remote controller, touch operation through a vehicle-mounted screen, a smart phone and other tools, and is controlled through a special APP or small program, and the man-machine interaction module is mainly used for facilitating control operation of a user on a fan when manual control is needed. The memory may be a memory built in the main control unit, or may be a device with a storage function, such as a plug-in FLASH, EEPROM, SD card, for storing related data acquired from the server side, and the like. The execution unit mainly refers to driving control of the fan, and comprises start-stop control, rotation speed control, abnormality detection, control and the like of the fan. For a common direct current fan, the start-stop and rotation speed of the fan can be controlled by adjusting the power supply voltage of the fan. For the direct current fan with the PWM control pin, the start-stop and the rotating speed of the direct current fan are mainly controlled by PWM pulse signals, but the fan power supply voltage is regulated, and the rotating speed of the fan is also influenced.
That is, a plurality of preset rotational speeds, a preset duration threshold value of each preset rotational speed, and a first preset rule may be obtained by the server side. Specifically, the server side and the ventilation device follow a specific data communication protocol, the ventilation device can establish data communication with the server side, the ventilation device can send the equipment ID, current position information (which can be obtained by adopting a satellite positioning mode, a base station positioning mode and the like) and other related information (such as time, base station information and the like) to the server side, the server side obtains the current position of an automobile and corresponding environmental parameters, software of the server side calculates intelligent mode operation parameter rotating speeds (namely preset rotating speeds) suitable for the equipment according to the environmental parameters of the position of the equipment including but not limited to temperature, humidity information and the like based on certain rules, the operation time, circulation rules (namely the first preset rules) and the like, and the main control unit transmits the intelligent mode operation parameter rotating speeds to the ventilation device.
It should be noted that, the intelligent mode operation parameter rotation speed may be output through a corresponding PWM duty cycle signal or a corresponding fan supply voltage signal. The intelligent mode operating parameter is an array, for example: { [ n1, t1, cl1, ], n2, t2, cl2, ], and. Alternatively, the operation time and the circulation rule can be cured in the ventilation device, and the server only needs to give a plurality of rotation speed characteristic values, so that the server can issue the configured operation parameter array to be simplified as follows: { n1, n2,..ni }.
In some embodiments, a set of preset default values may also be set in the memory of the ventilation device, and the ventilation device may control the operation of the fan according to the preset default values stored in the memory. Specifically, the preset default values include, but are not limited to, a preset rotation speed of the fan, a corresponding preset duration, a circulation mode, and the like.
In this embodiment, the ventilation device may implement the intelligent operation mode only according to the default value pre-stored in the memory, and control the operation of the fan of the car seat, without depending on the current environmental parameters (such as the indoor and outdoor temperature and humidity acquisition mechanism of the car) under the condition that the ventilation device does not need a corresponding acquisition module, a monitoring module, and a mechanism for acquiring information through the server.
It should be noted that, when the ventilation device is provided with a mechanism for acquiring information through the server, the embodiment can also be used for solving the problem that the ventilation device cannot establish communication with the server within a preset time, and at this time, the ventilation device can control the fan to work according to the preset default value stored in the memory. And after the ventilation device establishes effective data communication with the server side, the ventilation device can ask for an updated value of the operation parameter from the server side according to a specific rule.
In the embodiment, the ventilation system of the automobile seat is in an intelligent operation mode, human intervention is not needed, the air quantity of the fan is automatically and timely adjusted dynamically, and therefore a user obtains more comfortable product experience, and the ventilation system has obvious improvement in the aspects of safety, health, energy conservation, noise reduction and the like.
Optionally, the ventilation device includes M fans, M is greater than or equal to 2, and the ventilation device is further configured to set a start time of each fan according to a second preset rule, so as to control an initial phase of a noise wave generated by each fan, so that signal amplitudes of the noise waves mutually weaken after signals are superimposed.
Specifically, the fans include 1 st to M-th fans; the start time of the 1 st fan is tau 0 The corresponding ith fan has a start time of τ i I is more than or equal to 2 and less than or equal to M; the rotating speed of the fan is N, and the rotating period of the fan is T=60/N;
setting the starting time of each fan according to a second preset rule, including:
start time τ of ith fan i =τ 0 +K i * T is a T; wherein K is i Is a preset proportionality coefficient; preset proportionality coefficient K of two adjacent fans i Are not equal. Preset proportionality coefficient K i =(i-1)/M。
In this embodiment, the initial phase of fan operation is controlled by controlling the start time of the fan, so that the signal amplitudes of the noise generated by different fans after superposition are mutually weakened, and the wind noise is reduced while the efficient heat dissipation is satisfied, thereby improving the use experience of the product.
In another preferred embodiment, the ventilation device of the present embodiment includes a setting unit and a monitoring unit.
Specifically, a setting unit is used for setting the fan of the ventilation device to run according to a preset rotating speed along with time; the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed. The initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed. And the environmental parameters are acquired from a server side in wireless communication connection with the ventilation device, or are acquired through an environmental parameter acquisition module of the ventilation device, and a preset duration threshold is set according to the environmental parameters.
The monitoring unit is used for monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time reaches a preset time threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
Wherein the environmental parameter comprises an in-vehicle temperature and/or a current outdoor temperature. Optionally, the environmental parameters further include in-vehicle humidity, current outdoor humidity, and the like.
In this embodiment, by setting the preset duration threshold, the duration of the fan running at the high rotation speed is monitored in real time, so that the duration of the fan in the high rotation speed working state can be reduced, the noise influence is reduced, and the ventilation air volume and the wind pressure are effectively improved.
In another preferred embodiment, the present implemented vehicle includes at least one ventilation control system that performs the ventilation treatment method of the vehicle passenger compartment as described above. Specifically, each seat of the automobile is provided with a ventilation control system.
Alternatively, the primary and secondary driver seats of the vehicle share a single ventilation control system, or all of the seats of the vehicle share a single ventilation control system.
In addition, in the case of a ventilation system in which a ventilation fan is mounted inside a seat back or a seat cushion, the fan must be selected taking into consideration the influence of the fan mounting hole on the structural strength of the car seat. Although under the same condition, the ventilation amount is larger as the caliber of the fan is larger. However, as the diameter of the fan increases, it is necessary to dig out a corresponding mounting hole in the seat main body structure, and the influence on the mechanical strength of the seat increases. Therefore, the choice of the aperture of the fan cannot be too large due to the constraints of the structural strength of the seat.
In this embodiment, by setting the preset duration threshold, the duration of the fan running at the high rotation speed is monitored in real time, so that the duration of the fan in the high rotation speed working state can be reduced, the noise influence is reduced, and the ventilation air volume and the wind pressure are effectively improved.
The computer readable storage medium of the present invention may be a U-disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, or other various computer readable storage media capable of storing program codes.
The processor of the present invention is used to provide computing and control capabilities to support the operation of the entire ventilation device. It should be appreciated that the master control unit of the present invention may be a central processing unit (Central Processing Unit, CPU) that may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A ventilation device for a passenger compartment of a vehicle, comprising:
the setting unit is used for setting the fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed; moreover, acquiring environmental parameters from a server side in wireless communication connection with the ventilation device, or acquiring the environmental parameters through an environmental parameter acquisition module of the ventilation device, and setting a preset duration threshold according to the environmental parameters;
wherein the environmental parameters include an in-vehicle temperature and/or a current outdoor temperature;
the monitoring unit is used for monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches the preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
2. A ventilation treatment method for a passenger compartment of a vehicle, applied to the ventilation device of claim 1, characterized in that the method comprises the steps of:
Setting a fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
acquiring environmental parameters from a server side in wireless communication connection with the ventilation device, or acquiring the environmental parameters through an environmental parameter acquisition module of the ventilation device, and setting a preset duration threshold according to the environmental parameters;
wherein the environmental parameters include an in-vehicle temperature and/or a current outdoor temperature;
monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches the preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a preset rule to work as the rotating speed of the fan.
3. A ventilation treatment method for a passenger compartment of a vehicle, which is applied to a ventilation device of the passenger compartment of the vehicle, the method comprising the following steps:
setting a fan of the ventilation device to run according to a preset rotating speed along with time; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
Monitoring the continuous working time when the fan runs at the initial preset rotating speed; when the continuous working time length reaches a preset time length threshold, selecting a corresponding rotating speed from the first rotating speed and the second rotating speed according to a first preset rule to work as the rotating speed of the fan.
4. A ventilation treatment method of a passenger compartment of a vehicle according to claim 3, wherein the ventilation device comprises M fans, M being equal to or greater than 2, the method further comprising the steps of:
and setting the starting time of each fan according to a second preset rule so as to control the initial phase of the noise wave generated by each fan, so that the signal amplitude of the noise wave is mutually weakened after the signals are overlapped.
5. A ventilation processing method of a passenger compartment of a vehicle according to claim 3, wherein the fan includes 1 st to M-th fans; the start time of the No. 1 fan is tau 0 The corresponding ith fan has a start time of τ i I is more than or equal to 2 and less than or equal to M; the rotating speed of the fan is N, and the rotating period of the fan is T=60/N;
the setting the starting time of each fan according to the second preset rule includes:
the start time tau of the ith fan i =τ 0 +K i * T is a T; wherein K is i Is a preset proportionality coefficient; the preset proportional coefficient K of two adjacent fans i Are not equal.
6. The ventilation processing method for a passenger compartment of a vehicle according to claim 5Characterized in that the preset proportionality coefficient K i =(i-1)/M。
7. A method of ventilating a passenger compartment of a vehicle according to claim 3, wherein the ventilating means comprises M fans, M being greater than or equal to 2, and the first rotational speed comprises Q first sub-rotational speeds N each of which is not equal to j J is more than or equal to 1 and less than or equal to Q; the method further comprises the steps of:
setting each fan to select the first sub-rotating speed N in a set working time j Any one of them works; in addition, the total air quantity of each fan is equal in the set accumulated working time;
the set accumulated working time length is the sum of a plurality of set working time lengths.
8. The ventilation processing method of a vehicle passenger compartment of claim 7, wherein q=m; the set working time length comprises m sub-set working time lengths, m is more than or equal to 2, and the set accumulated working time length is the sum of m sub-set working time lengths; q first sub-rotational speeds N j Arranged in a ring array;
selecting the first sub-rotation speed N in the set working time period of each fan j Any one of the steps of working, including:
setting the j-th fan at the first sub-rotation speed N in the annular array j The starting point is used as the rotating speed of the fan in the 1 st sub-set working time period to work, and the rotating speed of the fan in the 2 nd to m th sub-set working time periods is sequentially and circularly selected from the annular array to work; wherein j is more than or equal to 1 and M is more than or equal to 1.
9. The automobile seat ventilation control system is characterized by comprising a ventilation device and a server side, wherein the ventilation device is connected with the server side in a wireless communication mode;
the server side is used for acquiring the current position and the environmental parameter of the ventilation device and sending the preset rotating speed, the preset duration threshold value and/or the first preset rule determined according to the current position and the environmental parameter to the ventilation device; wherein the preset rotating speed comprises an initial preset rotating speed and a noise reduction preset rotating speed; the initial preset rotating speed is larger than the noise reduction preset rotating speed, and the noise reduction preset rotating speed at least comprises a first rotating speed and a second rotating speed;
the ventilation device is used for sending the current position and/or the collected environmental parameters to the server, a fan of the ventilation device is set to run according to the preset rotating speed along time, the continuous working time when the fan runs at the initial preset rotating speed is monitored, and when the continuous working time reaches a preset time threshold, the corresponding rotating speed is selected from the first rotating speed and the second rotating speed according to the first preset rule to work as the rotating speed of the fan.
10. The vehicle seat ventilation control system of claim 9, wherein the ventilation device includes M fans, M being greater than or equal to 2, and the ventilation device is further configured to set a start time of each fan according to a second preset rule, so as to control an initial phase of a noise wave generated by each fan, such that signal amplitudes of the noise waves are reduced from each other after the signals are superimposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306407.2A CN117048290A (en) | 2023-10-10 | 2023-10-10 | Ventilation device, method and system for passenger room of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311306407.2A CN117048290A (en) | 2023-10-10 | 2023-10-10 | Ventilation device, method and system for passenger room of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117048290A true CN117048290A (en) | 2023-11-14 |
Family
ID=88667755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311306407.2A Pending CN117048290A (en) | 2023-10-10 | 2023-10-10 | Ventilation device, method and system for passenger room of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117048290A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798668A (en) * | 2003-04-08 | 2006-07-05 | 约翰逊控制器有限责任公司 | Vehicle seat |
| CN109083857A (en) * | 2018-08-06 | 2018-12-25 | 郑州云海信息技术有限公司 | A kind of server fan rotating speed control method and device |
| CN114674068A (en) * | 2022-03-16 | 2022-06-28 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN115494925A (en) * | 2022-09-23 | 2022-12-20 | 超聚变数字技术有限公司 | Noise reduction method of air cooling server, noise processing equipment, circuit and computing equipment |
| WO2023273346A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔空调器有限总公司 | Control method and control apparatus for air conditioner, and storage medium |
| CN116061783A (en) * | 2023-02-28 | 2023-05-05 | 深圳斯诺凡科技有限公司 | Seat ventilation control method and device, controller and storage medium |
-
2023
- 2023-10-10 CN CN202311306407.2A patent/CN117048290A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798668A (en) * | 2003-04-08 | 2006-07-05 | 约翰逊控制器有限责任公司 | Vehicle seat |
| CN109083857A (en) * | 2018-08-06 | 2018-12-25 | 郑州云海信息技术有限公司 | A kind of server fan rotating speed control method and device |
| WO2023273346A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔空调器有限总公司 | Control method and control apparatus for air conditioner, and storage medium |
| CN114674068A (en) * | 2022-03-16 | 2022-06-28 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN115494925A (en) * | 2022-09-23 | 2022-12-20 | 超聚变数字技术有限公司 | Noise reduction method of air cooling server, noise processing equipment, circuit and computing equipment |
| CN116061783A (en) * | 2023-02-28 | 2023-05-05 | 深圳斯诺凡科技有限公司 | Seat ventilation control method and device, controller and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108569233B (en) | Sleep assistance device for vehicle, system comprising sleep assistance device, and method for sleep assistance for vehicle | |
| US10816234B2 (en) | Systems and methods for HVAC filter replacement type recommendation | |
| CN100385178C (en) | Sleep operating mode of air conditioner | |
| CN101140450B (en) | Energy conservation type heat comfortable controller and control method | |
| US8868250B2 (en) | Fan speed control | |
| CN103134139B (en) | Air-conditioner sweep wind control method, device and air-conditioner | |
| EP3425208B1 (en) | Fan, and control system and method therefor | |
| CN103900208A (en) | Air conditioner controlling method and air conditioner | |
| CN103134140B (en) | Control method, device and the air-conditioner that air conditioner inner fan is run | |
| CN104566795A (en) | Control method and system of room air conditioner and air conditioner adopting method and system | |
| CN110940064B (en) | Control method for operating frequency of air conditioner | |
| CN105241013A (en) | Control method and device for air conditioner and air conditioner | |
| US20140012423A1 (en) | Energy saving controlling method and device of inverter air-conditioner | |
| CN109458692A (en) | A kind of method and intelligent electric appliance controlling intelligent electric appliance | |
| JP2018055172A (en) | Energy consumption monitoring unit, apparatus management system and program | |
| JP2007106360A (en) | Seat air-conditioner, nap preventing device, and sheet air-conditioning operating method | |
| CN117048290A (en) | Ventilation device, method and system for passenger room of vehicle | |
| JP2008121919A (en) | Control device for air conditioner | |
| ITVA20100049A1 (en) | NAUTICAL AIR-CONDITIONING SYSTEM WITH INVERTER AND VRV COMPRESSOR - VRF (VARIABLE REFRIGERANT VOLUME). | |
| JP2003329285A (en) | Control device of air conditioner and air conditioner | |
| JPH10110997A (en) | Air conditioner | |
| KR100409000B1 (en) | The cooling control method of air conditioner | |
| JP2005226975A (en) | Circulator | |
| JP2005147504A (en) | Air conditioner | |
| JP2006064324A (en) | Heat quantity conditioning device having energy-saving operation function in outing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |