CN113085475B - Vehicle-mounted overhead air conditioner, control method thereof and vehicle - Google Patents
Vehicle-mounted overhead air conditioner, control method thereof and vehicle Download PDFInfo
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- CN113085475B CN113085475B CN202110320716.XA CN202110320716A CN113085475B CN 113085475 B CN113085475 B CN 113085475B CN 202110320716 A CN202110320716 A CN 202110320716A CN 113085475 B CN113085475 B CN 113085475B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00871—Air directing means, e.g. blades in an air outlet
Abstract
The invention belongs to the technical field of air conditioners and aims to solve the problem that the airflow flow of a top air outlet of a vehicle-mounted overhead air conditioner is not matched with the heat exchange quantity of an outdoor heat exchanger in the running process of a vehicle. For the purpose, the invention provides a vehicle-mounted overhead air conditioner, a control method thereof and a vehicle, wherein the vehicle-mounted overhead air conditioner is installed on the vehicle, the top of the vehicle-mounted overhead air conditioner is provided with an air outlet corresponding to an outdoor heat exchanger, the air outlet is provided with an opening degree adjusting device, the vehicle and/or the vehicle-mounted overhead air conditioner is provided with a speed sensor, the vehicle-mounted overhead air conditioner comprises a controller connected with the opening degree adjusting device and the speed sensor, and the control method comprises the following steps: the current moving speed of the vehicle is obtained, the opening adjusting device is controlled to adjust the opening of the air outlet, the opening of the air outlet is controlled to be inversely related to the current moving speed of the vehicle, accordingly, the airflow flow of the air outlet is matched with the heat exchange quantity of the outdoor heat exchanger, and the service lives of the compressor and the refrigerant circulating pipeline are prolonged.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a vehicle-mounted overhead air conditioner, a control method of the vehicle-mounted overhead air conditioner and a vehicle.
Background
With the progress of science and technology and the continuous improvement of the living standard of people, the air conditioner is widely applied to the daily life of people. The air conditioner is widely applied to the home environment of people, is widely applied to vehicles driven by people, and improves the temperature comfort degree in the driving space of the vehicles. In consideration of the limited interior space of a vehicle, an in-vehicle ceiling type air conditioner is a main type of air conditioner for vehicles. The vehicle-mounted overhead air conditioner is mounted on the roof, the upper half part of the vehicle-mounted overhead air conditioner is positioned at the upper part of the roof, the lower half part of the vehicle-mounted overhead air conditioner is positioned in a vehicle, an air inlet and/or an air outlet of the internal circulation air duct are/is arranged at the bottom of the overhead air conditioner, so that air in the vehicle flows through the indoor heat exchanger for heat exchange and then returns to the interior of the vehicle, and an air inlet and/or an air outlet of the external circulation air duct are/is arranged at the top of the vehicle-mounted overhead air conditioner, so that air outside the vehicle flows through the outdoor heat exchanger for heat exchange and then returns to the exterior of the vehicle.
In the process of cooling or heating the inside of a vehicle using an in-vehicle overhead type air conditioner, the vehicle is usually in a running state. In the running process of a vehicle, the top of the vehicle-mounted overhead air conditioner and air in the environment move relatively, airflow flowing towards the rear of the vehicle is formed at the top, the flowing airflow has great influence on the airflow flowing through the air outlet at the top of the vehicle-mounted air conditioner, and the airflow flow of the air outlet at the top of the vehicle-mounted air conditioner is not matched with the heat exchange quantity of the outdoor heat exchanger, so that the compressor is started and stopped irregularly, the pressure of a pipeline in a refrigerant loop is unstable, and the service life of the compressor and the refrigerant circulating pipeline is influenced.
Therefore, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that the airflow rate at the top air outlet of the vehicle-mounted overhead air conditioner is not matched with the heat exchange amount of the outdoor heat exchanger during the driving of the vehicle, on one hand, the present invention provides a method for controlling a vehicle-mounted overhead air conditioner, the vehicle-mounted overhead air conditioner is mounted on a vehicle, the top of the vehicle-mounted overhead air conditioner is provided with an air outlet corresponding to the outdoor heat exchanger, the air outlet is provided with an opening degree adjusting device, the vehicle and/or the vehicle-mounted overhead air conditioner is provided with a speed sensor for detecting the moving speed of the vehicle, the vehicle-mounted overhead air conditioner comprises a controller, and the controller is connected with the opening degree adjusting device and the speed sensor, and the method comprises: acquiring the current moving speed of the vehicle; controlling the opening adjusting device to adjust the opening of the air outlet according to the current moving speed of the vehicle; wherein the opening degree of the air outlet is controlled to be inversely related to the current moving speed of the vehicle.
In a preferred embodiment of the control method, the opening degree of the outlet is set to include n opening degrees, the moving speed range of the vehicle is defined as n speed sections, the n opening degrees of the outlet are in one-to-one correspondence with the n speed sections of the vehicle, n is a positive integer equal to or greater than 2, and the step of controlling the opening degree adjusting device to adjust the opening degree of the outlet according to the current moving speed of the vehicle includes: judging a speed interval where the current moving speed of the vehicle is located and determining the target opening degree of the air outlet; and adjusting the opening degree of the air outlet to the target opening degree.
In a preferable aspect of the control method, the step of "controlling the opening degree of the outlet port by the opening degree adjusting device according to the current moving speed of the vehicle" includes: calculating the target opening degree of the air outlet according to a formula (1) according to the current moving speed of the vehicle,
adjusting the opening degree of the air outlet to the target opening degree; and K is the target opening degree, V is the maximum moving speed which can be reached by the vehicle, and V is the current moving speed of the vehicle.
In a preferred embodiment of the above control method, the outlet includes a first outlet, a wind outlet 8230, a wind outlet i, a wind outlet 8230, a wind outlet p, and the step of controlling the opening adjusting device to adjust the opening of the outlet according to the current moving speed of the vehicle includes: determining the target opening degree of the first air outlet according to the current moving speed of the vehicle; calculating the target opening degree of the ith air outlet according to a formula (2),
K i ＝K 1 +(i-1)ΔK (2)；
adjusting the opening degree of the first air outlet to be 8230, the opening degree of the ith air outlet to be 8230, and the opening degree of the pth air outlet to be a corresponding target opening degree; wherein, K 1 Is the target opening degree of the first air outlet, K i And p is a positive integer greater than or equal to 2, i is a positive integer greater than or equal to 2 and less than or equal to p, and delta K is a preset opening difference value.
In a preferred technical solution of the above control method, an air inlet corresponding to the outdoor heat exchanger is provided at a top of the vehicle-mounted overhead type air conditioner, and the control method further includes: increasing the rotating speed of a fan of the air inlet according to the current moving speed of the vehicle; and controlling the rotating speed increase amount of the fan of the air inlet to be positively correlated with the current moving speed of the vehicle.
In a preferred technical solution of the above control method, the moving speed range of the vehicle is defined as n speed sections, the fan of the air inlet is provided with n rotation speed increase amounts, the n rotation speed increase amounts are in one-to-one correspondence with the n speed sections of the vehicle, n is a positive integer greater than or equal to 2, and the step of increasing the rotation speed of the fan of the air inlet according to the current moving speed of the vehicle includes: judging a speed interval where the current moving speed of the vehicle is located and determining the rotating speed increase amount of a fan of the air inlet; and increasing the rotating speed of the fan of the air inlet by the rotating speed increasing amount.
In a preferred embodiment of the above control method, the step of "increasing the rotation speed of the blower of the air inlet according to the current moving speed of the vehicle" includes: calculating the rotating speed increase amount of a fan at the air inlet according to a formula (3) according to the current moving speed of the vehicle,
increasing the rotating speed of the fan of the air inlet by the rotating speed increase amount; wherein M is the rotational speed increase amount, V is the current moving speed of the vehicle, V is the maximum moving speed that the vehicle can reach, and Δ M is a preset rotational speed increase amount.
In a preferred technical solution of the above control method, the air inlet includes a first air inlet, \8230, a jth air inlet, \8230, and a qth air inlet, which are sequentially arranged along the vehicle from the front to the rear direction, and the step of increasing the rotation speed of the fan of the air inlet according to the current moving speed of the vehicle includes: determining the rotating speed increase amount of a fan of the first air inlet according to the current moving speed of the vehicle; calculating the rotating speed increase amount of the fan of the jth air inlet according to a formula (4),
M j ＝M 1 -(j-1)Δm (4)；
increasing the rotating speed of the fan at the first air inlet by a corresponding rotating speed increase amount, wherein the rotating speed of the fan at the jth air inlet is \8230, and the rotating speed of the fan at the qth air inlet is increased by a corresponding rotating speed increase amount; wherein, M 1 For increasing the rotational speed of the fan of the first air inlet by M j And the rotating speed of the fan at the jth air inlet is increased by an amount, q is a positive integer which is more than or equal to 2, j is a positive integer which is more than or equal to 2 and less than or equal to q, and delta m is a preset rotating speed increase difference.
The technical scheme includes that an opening adjusting device is arranged at a top air outlet of the vehicle-mounted overhead air conditioner, a vehicle and/or the vehicle-mounted overhead air conditioner is/are provided with a speed sensor for detecting the moving speed of the vehicle, a controller is connected with the opening adjusting device and the speed sensor, the opening adjusting device is controlled according to the current moving speed of the vehicle to adjust the opening of an air outlet, the air outlet can be in a corresponding opening when the vehicle is in a running state at different speeds, the air flow of the air outlet is matched with the heat exchange quantity of an outdoor heat exchanger, the compressor is guaranteed to be started and stopped regularly, the pipeline pressure in a refrigerant loop is kept relatively stable, and the service life of the compressor and the refrigerant circulating pipeline is prolonged. Because the speed detection is relatively convenient, the opening degree of the air outlet can be more conveniently controlled in the running process of the vehicle. In the running process of a vehicle, the flow velocity of airflow which relatively moves with the top of the vehicle-mounted overhead air conditioner is directly related to the moving speed of the vehicle, the influence of the relatively moving airflow on the airflow at the air outlet of the vehicle-mounted overhead air conditioner is directly related to the relative flowing speed of the airflow, the opening degree of the air outlet is adjusted according to the moving speed of the vehicle, the opening degree of the air outlet can be more accurately adjusted, and the airflow flow of the air outlet can be more effectively matched with the heat exchange quantity of the outdoor heat exchanger.
In another aspect, the present invention further provides a vehicle-mounted ceiling type air conditioner, including: a memory; a processor; and a computer program stored in the memory and configured to be executed by the processor to implement the control method of the in-vehicle overhead type air conditioner in the above-described technical solution.
In addition, the invention also provides a vehicle which comprises the vehicle-mounted overhead air conditioner in the technical scheme.
It should be noted that, the vehicle-mounted ceiling-mounted air conditioner and the vehicle have all the technical effects of the control method, and are not described herein again.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a diagram of main steps of a control method of a vehicle-mounted overhead type air conditioner of the present invention;
FIG. 2 is a diagram showing a detailed procedure of a control method of the on-vehicle rooftop air conditioner according to the present invention;
fig. 3 is a first schematic top view (with the outlet fully open) of the on-vehicle overhead type air conditioner according to the embodiment of the present invention;
fig. 4 is a second schematic plan view (outlet partially open state) of the on-vehicle ceiling-mounted air conditioner according to the embodiment of the present invention;
fig. 5 is a detailed step diagram of a control method of a vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention.
List of reference numerals:
1. a housing; 11. a top plate; 12. a side plate; 131. a first air outlet; 132. a second air outlet; 14. an air inlet; 21. a first linear motor; 22. a first air plate; 31. a second linear motor; 32. and a second air plate.
Detailed Description
First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the damper in the opening adjustment device according to the embodiment of the present invention adjusts the opening of the air outlet in a translational manner, this does not limit the scope of the present invention, and those skilled in the art can adjust the damper as needed to suit the specific application, for example, the damper in the opening adjustment device according to the present invention can also adjust the opening of the air outlet in a pivotal manner. Obviously, the technical solution after adjustment still falls into the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "left", "right", "upper", "lower", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A vehicle-mounted ceiling type air conditioner and a control method thereof of the present invention will be described with reference to fig. 1 to 5. Fig. 1 is a main step diagram of a control method of a vehicle-mounted ceiling type air conditioner according to the present invention, fig. 2 is a detailed step diagram of the control method of the vehicle-mounted ceiling type air conditioner according to the present invention, fig. 3 is a first schematic top view (fully open state of an air outlet) of the vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention, fig. 4 is a second schematic top view (partially open state of the air outlet) of the vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention, and fig. 5 is a detailed step diagram of the control method of the vehicle-mounted ceiling type air conditioner according to an embodiment of the present invention.
The invention provides a vehicle-mounted overhead air conditioner and a control method thereof based on the problem that the air flow of a top air outlet of the vehicle-mounted overhead air conditioner is not matched with the heat exchange quantity of an outdoor heat exchanger in the vehicle running process. The vehicle-mounted overhead air conditioner is mounted on a vehicle, an air outlet corresponding to the outdoor heat exchanger is formed in the top of the vehicle-mounted overhead air conditioner, an opening degree adjusting device is arranged at the air outlet, the vehicle and/or the vehicle-mounted overhead air conditioner is/are provided with a speed sensor used for detecting the moving speed of the vehicle, the vehicle-mounted overhead air conditioner comprises a controller, and the controller is connected with the opening degree adjusting device and the speed sensor.
It will be understood by those skilled in the art that the speed sensor may be a speed sensor installed inside the dashboard of the vehicle to detect the rotational speed of the output shaft of the transmission and convert the rotational speed into the moving speed of the vehicle, or a speed sensor installed on the on-board air conditioner to measure and calculate the moving speed based on the real-time positioning information, or two speed sensors installed on both the vehicle and the on-board air conditioner. In the case of including two speed sensors which are simultaneously arranged on a vehicle and an on-vehicle overhead type air conditioner, the controller can calculate the average value according to the vehicle moving speed measured by the two speed sensors to be used as the moving speed of the vehicle, so that the measurement error is reduced as much as possible, and in the case that one of the speed sensors fails and cannot work, the controller can still obtain the moving speed of the vehicle according to the other speed sensor. In addition, the controller is connected with the opening adjusting device and the speed sensor, and can be in wired connection through a communication line or in wireless connection through Bluetooth, WIFI and the like. The opening degree adjusting device may be a device provided at the air outlet and capable of moving the damper in a pivoting manner, a translating manner, or other suitable manner so as to change the opening degree of the air outlet.
As shown in fig. 1, the control method of the vehicle-mounted overhead type air conditioner of the present invention mainly includes the steps of:
and step S100, acquiring the current moving speed of the vehicle.
The speed sensor detects the current moving speed of the vehicle in real time and sends the current moving speed of the vehicle to the controller.
And S200, controlling the opening degree adjusting device to adjust the opening degree of the air outlet according to the current moving speed of the vehicle, wherein the opening degree of the air outlet is controlled to be in negative correlation with the current moving speed of the vehicle.
The domestic regulation of high speed limit is 120km/h, and the moving speed of the vehicle is usually 0-120 km/h in the daily driving process. The speed range of 0-120 km/h can be divided into n speed intervals, and the opening degree of the air outlet is preset into n opening degrees which are in one-to-one correspondence with the n speed intervals. For example, 5 speed sections are defined, that is, (0, 20) km/h, [20, 45) km/h, [45, 70) km/h, [70, 95) km/h, [95, 120] km/h, and the opening degree of the outlet is preset to 1, 4/5, 3/5, 2/5, 1/5, corresponding to the speed sections. It should be noted that the opening degree is a ratio of a cross-sectional area of the opening of the air outlet to a cross-sectional area of the opening. And when the controller receives the current moving speed of the vehicle transmitted by the speed sensor, the controller judges a speed interval in which the current moving speed of the vehicle falls, so that the target opening degree of the air outlet is determined. For example, the current moving speed of the vehicle is 50km/h, the vehicle falls into a speed interval of [45, 70] km/h, the corresponding opening degree of the air outlet is 3/5, and the controller can determine the target opening degree of the current air outlet to be 3/5, so as to control the opening degree adjusting device to enable the opening degree of the air outlet to reach 3/5.
The opening degree of the air outlet is adjusted by controlling the opening degree adjusting device according to the current speed of the vehicle, and the air outlet is in a corresponding opening degree when the vehicle is at different moving speeds, so that the influence of airflow generated by relative motion of the vehicle-mounted overhead air conditioner and air on the airflow flow of the air outlet in the vehicle running process is reduced, namely, the promotion effect of a negative pressure region formed above the vehicle-mounted overhead air conditioner on the air outlet in the vehicle running process is reduced, the airflow flow of the air outlet is matched with the heat exchange quantity of the outdoor heat exchanger, the compressor is guaranteed to be started and stopped regularly, the pipeline pressure in a refrigerant loop is kept relatively stable, and the service lives of the compressor and a refrigerant circulating pipeline are prolonged.
It can be understood by those skilled in the art that 5 speed intervals and 5 openings of the air outlets are only a specific setting manner, and those skilled in the art can adjust the speed intervals and the openings of the air outlets as required, for example, the number of the speed intervals and the openings of the air outlets may be 3, 4, 6 or more. The division of the speed range from 0 to 120km/h into a plurality of speed intervals is also a specific setting manner, and a person skilled in the art can adjust the speed range according to the actual situation, for example, the speed range can be from 0 to 100km/h, from 0 to 130km/h or from 0 to 140 km/h.
Referring to fig. 2, in another specific embodiment, step S200 includes:
and step S210, calculating a target opening of the air outlet according to a formula K = (V-V)/V according to the current moving speed of the vehicle, wherein K is the target opening, V is the maximum moving speed which can be reached by the vehicle, and V is the current moving speed of the vehicle. It will be understood that the maximum travel speed that can be reached by the vehicle may be the maximum travel speed that the vehicle itself is designed to reach, or may be the maximum speed that the vehicle is restricted from traveling during travel on the road.
And S220, adjusting the opening of the air outlet to a target opening.
The target opening of the air outlet is calculated according to a formula K = (V-V)/V, the opening of the air outlet can be adjusted to be matched with the speed under any speed condition of vehicle running, the influence of relative airflow generated in the vehicle running process on the flow of the air outlet is effectively reduced, the flow of the air flow flowing through the outdoor heat exchanger is more stable, the compressor is guaranteed to be started and stopped regularly, the pressure of a pipeline in a refrigerant loop is kept relatively stable, and the service life of the compressor and the refrigerant circulating pipeline is prolonged.
For part of vehicle-mounted overhead air conditioners, the air inlet of the external circulation air duct is also arranged at the top, and relative airflow generated in the running process of a vehicle influences the air flow of the air inlet and is not matched with the heat exchange quantity of the outdoor heat exchanger.
With continued reference to fig. 2, the control method of the on-vehicle overhead type air conditioner further includes the step of "increasing the rotation speed of the fan of the air inlet according to the current moving speed of the vehicle, wherein the amount of increase in the rotation speed of the fan of the air inlet is controlled to be positively correlated with the current moving speed of the vehicle". Specifically, the method comprises the following steps:
step S310, calculating a rotation speed increase amount of the blower of the air inlet according to a formula M = V × Δ M/V according to the current moving speed of the vehicle, where M is the rotation speed increase amount, V is the maximum moving speed that the vehicle can reach, and Δ M is a preset rotation speed increase amount.
The preset rotation speed increase Δ M is preset, and for example, the preset rotation speed increase Δ M may be 20 rpm, 30 rpm, or another suitable rotation speed increase, etc.
And step S320, increasing the rotating speed of the fan of the air inlet by the rotating speed increasing amount.
Through the arrangement, the rotating speed increase amount of the fan of the air inlet is calculated according to the formula M = V × Δ M/V according to the running speed of the vehicle, the rotating speed of the air inlet is increased by the rotating speed increase amount, the rotating speed increase amount corresponding to the rotating speed increase of the fan of the air inlet under any speed condition can be increased, accordingly, the blocking effect of relative airflow generated in the running process of the vehicle on airflow flowing of the air inlet at the top of the vehicle-mounted air conditioner is reduced, the airflow flow of the air outlet is matched with the heat exchange amount of the outdoor heat exchanger, the compressor is guaranteed to be started and stopped regularly, the pipeline pressure in the refrigerant loop is kept relatively stable, and the service lives of the compressor and the refrigerant circulating pipeline are prolonged.
In another possible implementation manner, the moving speed range of the vehicle is divided into n speed sections, and the fan of the air inlet is provided with n rotating speed increase amounts which are in one-to-one correspondence with the n speed sections. For example, the speed range of 0 to 120km/h is defined as 5 speed sections, which are respectively (0, 20] km/h, (20, 45] km/h, (45, 70] km/h, (70, 95] km/h, (95, 120) km/h, the increase of the rotation speed of the fan of the air inlet is set to 10 rpm, 20 rpm, 30 rpm, 40 rpm and 50 rpm, which correspond to the speed sections one by one, the controller determines the speed section in which the current moving speed of the vehicle falls when receiving the current moving speed of the vehicle transmitted from the speed sensor, and thus determines the increase of the rotation speed of the fan of the air inlet, for example, the current moving speed of the vehicle is 75km/h, and falls in the speed section of (70, 95 ]) km/h, and the corresponding increase of the rotation speed of the fan of the air inlet is 40 rpm, and the controller may determine the increase of the rotation speed of the fan of the current air inlet to be 40 rpm, and thus control the rotation speed of the fan of the air inlet to be increased by 40 rpm.
The top of the air conditioner is provided with a plurality of air outlets, the plurality of air outlets are a first air outlet, an air outlet 8230, an air outlet i, an air outlet 8230, an air outlet p and an air outlet p are sequentially arranged along the front-to-back direction of the vehicle, and the p is a positive integer greater than or equal to 2. Step S200 of the control method of the in-vehicle overhead type air conditioner includes the steps of:
determining the target opening degree of the first air outlet according to the current moving speed of the vehicle and according to a formula K i ＝K 1 (i-1) calculating the target opening of the ith air outlet by using the delta K;
adjusting the opening degree of the first air outlet, the opening degree of the ith air outlet, the opening degree of the 8230the opening degree of the pth air outlet and the opening degree of the pth air outlet to be corresponding target opening degrees;
wherein, K 1 Is the target opening of the first air outlet, K i And the target opening of the ith air outlet is set, i is a positive integer which is more than or equal to 2 and less than or equal to p, and delta K is a preset opening difference value. It is understood that the preset opening difference Δ K may be 1/10, 3/10, or other values, etc.
Through such setting, can distinguish the setting to the aperture along the air outlet of fore-and-aft direction to the relative air current is different and control the aperture of the air outlet that the fore-and-aft direction set up more accurately to the influence of the air current flow of the air outlet that the fore-and-aft direction set up under the circumstances that sets up to the fore-and-aft direction, thereby makes the air current of different air outlets and the heat transfer volume phase-match of the position that outdoor heat exchanger corresponds.
Reference will now be made to fig. 3 to 5 in conjunction with a vehicle-mounted ceiling type air conditioner having two air outlets arranged in the front-rear direction at the ceiling.
As shown in fig. 3 to 5 and with reference to the orientation shown in fig. 3, the vehicle-mounted ceiling type air conditioner includes a housing 1, a first air outlet 131 and a second air outlet 132 are distributed from top to bottom on a top plate 11 of the housing 1, and an air inlet 14 is provided on a side plate 12 of a lower side of the housing 1 (the side facing the rear of the vehicle when the vehicle-mounted ceiling type air conditioner is mounted to the vehicle). A first opening adjusting device and a second opening adjusting device are respectively arranged on the top plate 11 and located on the left side of the first air outlet 131 and the left side of the second air outlet 132, and the first opening adjusting device and the second opening adjusting device are respectively used for adjusting the opening of the first air outlet 131 and the opening of the second air outlet 132. The first opening degree adjusting device includes a first linear motor 21 and a first damper 22 connected to an output shaft of the first linear motor 21. The second opening degree adjusting device includes a second linear motor 31 and a second damper 32 connected to an output shaft of the second linear motor 31.
The control method of the vehicle-mounted overhead type air conditioner comprises the following steps:
and step S100, acquiring the current moving speed of the vehicle.
Step S211, according to formula K 1 Calculating the target opening K of the first air outlet by = (V-V)/V 1 According to formula K 2 ＝K 1 + delta K calculates the target opening K of the second air outlet 2 . And V is the maximum moving speed which can be reached by the vehicle, V is the current moving speed of the vehicle, and delta K is a preset opening difference value. And step S221, adjusting the opening degree of the first air outlet and the opening degree of the second air outlet to be corresponding target opening degrees.
For example, the maximum moving speed of the vehicle is 120km/h, and the difference value of the preset opening degree is 1/12. When the current moving speed of the vehicle is detected to be 60km/h, K 1 ＝(120-60)/120＝1/2，K 2 1/2+1/12=7/12. The controller controls the first linear motor 21 and the second linear motor 22 to respectively drive the first air plate 22 and the second air plate 32 to respectively move to corresponding positions, so that the first air outlet 131 is openedThe degree and the opening degree of the second air outlet 132 reach 1/2 and 7/12.
It will be understood by those skilled in the art that the moving speed range of the vehicle may also be divided into n speed sections, the opening degree of the air outlet is set to include n opening degrees corresponding to the n speed sections of the vehicle one by one, the speed section where the current moving speed of the vehicle is located is judged, and the target opening degree K of the first air outlet is determined 1 According to formula K i ＝K 1 And (i-1) calculating the target opening of the ith air outlet by the aid of the delta K.
In another embodiment, the roof of the vehicle-mounted ceiling-mounted air conditioner is provided with a first air inlet opening \8230, a jth air inlet opening \8230, and a qth air inlet opening q which is a positive integer greater than or equal to 2, which are arranged in sequence along the front-to-rear direction of the vehicle. The step of increasing the rotating speed of the fan at the air inlet according to the current moving speed of the vehicle, wherein the rotating speed increase amount of the fan at the air inlet is controlled to be positively correlated with the current moving speed of the vehicle comprises the following steps:
determining the rotating speed increase amount of a fan of the first air inlet according to the current moving speed of the vehicle;
according to formula M j ＝M 1 Calculating the rotating speed increase amount of a fan at the jth air inlet by the- (j-1) delta m;
increasing the rotating speed of the fan at the first air inlet of \8230, the rotating speed of the fan at the jth air inlet of \8230andthe rotating speed of the fan at the qth air inlet by corresponding rotating speed increase amounts;
wherein, M 1 For increasing the rotational speed of the fan at the first air inlet, M j The rotating speed of the fan at the jth air inlet is increased, q is a positive integer larger than or equal to 2, j is a positive integer larger than or equal to 2 and smaller than or equal to q, and delta m is a preset rotating speed increase difference.
It can be understood that the rotation speed increase amount of the fan of the first air inlet may be calculated according to the formula M = V × Δ M/V, or the moving speed range of the vehicle may be defined as n speed intervals, the fan of the air inlet is provided with n rotation speed increase amounts corresponding to the n speed intervals one by one, the speed interval where the current moving speed of the vehicle is located is determined, and the rotation speed increase amount of the fan of the first air inlet is determined.
Through setting up like this, can distinguish the setting to the rotational speed of the air intake along fore-and-aft direction to the relative air current is different and the rotational speed of the fan of the air intake that the fore-and-aft direction set up is controlled more accurately to the influence of the air current flow of the air intake that the fore-and-aft direction set up under the circumstances that sets up to the fore-and-aft direction, thereby makes the gas flow of different air intakes and the heat transfer volume phase-match of the position that outdoor heat exchanger corresponds.
On the other hand, the invention also provides a vehicle-mounted overhead type air conditioner, which comprises: the air conditioner control system comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory and is configured to be executed by the processor to realize the control method of the vehicle-mounted overhead type air conditioner of any one of the embodiments.
Those skilled in the art will appreciate that the memory in the above embodiments includes, but is not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, or registers, etc., and the processor includes, but is not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc.
In addition, the invention also provides a vehicle which comprises the vehicle-mounted overhead type air conditioner of the embodiment.
As can be seen from the above description, in the technical scheme of the present invention, the opening degree adjusting device is controlled to adjust the opening degree of the air outlet according to the current moving speed of the vehicle, so that the air outlet can be in the corresponding opening degree when the vehicle is in a running state at different speeds, the airflow flow of the air outlet is matched with the heat exchange amount of the outdoor heat exchanger, the compressor is ensured to be started and stopped regularly, the pipeline pressure in the refrigerant loop is kept relatively stable, and the service lives of the compressor and the refrigerant circulation pipeline are prolonged.
Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A control method of a vehicle-mounted overhead type air conditioner, wherein the vehicle-mounted overhead type air conditioner is mounted on a vehicle, the vehicle-mounted overhead type air conditioner is characterized in that an air outlet corresponding to an outdoor heat exchanger is arranged at the top of the vehicle-mounted overhead type air conditioner, an opening degree adjusting device is arranged at the air outlet, the vehicle and/or the vehicle-mounted overhead type air conditioner is provided with a speed sensor for detecting the moving speed of the vehicle, the vehicle-mounted overhead type air conditioner comprises a controller, and the controller is connected with the opening degree adjusting device and the speed sensor, and the control method comprises the following steps:
acquiring the current moving speed of the vehicle;
controlling the opening adjusting device to adjust the opening of the air outlet according to the current moving speed of the vehicle;
wherein the opening degree of the air outlet is controlled to be inversely related to the current moving speed of the vehicle;
the top of the vehicle-mounted overhead air conditioner is provided with an air inlet corresponding to the outdoor heat exchanger, and the control method further comprises the following steps:
increasing the rotating speed of a fan of the air inlet according to the current moving speed of the vehicle;
and controlling the rotating speed increase amount of the fan of the air inlet to be positively correlated with the current moving speed of the vehicle.
2. The control method according to claim 1, wherein the opening degree of the outlet port is set to include n opening degrees, the moving speed range of the vehicle is divided into n speed sections, the n opening degrees of the outlet port are in one-to-one correspondence with the n speed sections of the vehicle, n is a positive integer equal to or greater than 2,
the step of controlling the opening degree adjusting device to adjust the opening degree of the air outlet according to the current moving speed of the vehicle comprises the following steps:
judging a speed interval where the current moving speed of the vehicle is located and determining the target opening degree of the air outlet;
and adjusting the opening degree of the air outlet to the target opening degree.
3. The control method according to claim 1, wherein the step of controlling the opening degree adjustment device to adjust the opening degree of the outlet port in accordance with the current moving speed of the vehicle includes:
according to the current moving speed of the vehicle according to the formula
Calculating the target opening degree of the air outlet,
adjusting the opening of the air outlet to the target opening;
and K is the target opening degree, V is the maximum moving speed which can be reached by the vehicle, and V is the current moving speed of the vehicle.
4. The control method according to claim 2 or 3, wherein the outlet comprises a first outlet, an 8230, an ith outlet, an 8230, and a pth outlet arranged in sequence from a front to a rear direction of the vehicle,
the step of controlling the opening degree adjusting device to adjust the opening degree of the air outlet according to the current moving speed of the vehicle comprises the following steps:
determining the target opening degree of the first air outlet according to the current moving speed of the vehicle;
according to the formula
Calculating the target opening degree of the ith air outlet,
adjusting the opening degree of the first air outlet to be 8230, the opening degree of the ith air outlet to be 8230, and the opening degree of the pth air outlet to be a corresponding target opening degree;
wherein the content of the first and second substances,
is the target opening degree of the first air outlet,
p is a positive integer which is more than or equal to 2, i is a positive integer which is more than or equal to 2 and less than or equal to p,
is a preset opening difference value.
5. The control method according to claim 1, wherein a moving speed range of the vehicle is divided into n speed sections, the blower of the air intake is provided with n rotation speed increases, the n rotation speed increases correspond to the n speed sections of the vehicle one to one, and n is a positive integer greater than or equal to 2,
the step of increasing the rotation speed of the fan of the air inlet according to the current moving speed of the vehicle comprises the following steps:
judging a speed interval where the current moving speed of the vehicle is located and determining the rotating speed increase amount of a fan of the air inlet;
and increasing the rotating speed of the fan of the air inlet by the rotating speed increase amount.
6. The control method according to claim 1, wherein the step of increasing the rotation speed of the blower of the intake vent according to the current moving speed of the vehicle comprises:
according to the current moving speed of the vehicleAccording to the formula
Calculating the rotating speed increase amount of the fan at the air inlet,
increasing the rotating speed of the fan of the air inlet by the rotating speed increase amount;
wherein M is the rotation speed increase amount, V is the current moving speed of the vehicle, and V is the maximum moving speed which can be reached by the vehicle,
for a preset rotational speed increase.
7. The control method according to claim 5 or 6, wherein the air inlet includes a first air inlet, an 8230, a jth air inlet, an 8230, a qth air inlet,
the step of increasing the rotation speed of the fan of the air inlet according to the current moving speed of the vehicle comprises the following steps:
determining the rotating speed increase amount of a fan of the first air inlet according to the current moving speed of the vehicle;
according to the formula
Calculating the rotating speed increase amount of the fan at the jth air inlet,
the method comprises the steps of increasing the rotation speed of a fan of a first air inlet by a corresponding rotation speed increase amount, wherein the rotation speed of the fan of a j-th air inlet is \8230, and the rotation speed of the fan of a q-th air inlet is increased by a corresponding rotation speed increase amount;
wherein the content of the first and second substances,
the rotating speed of the fan of the first air inlet is increased,
increasing the rotating speed of the fan of the jth air inletA large number of q is a positive integer of 2 or more, j is a positive integer of 2 or more and q or less,
the difference is increased for a preset rotational speed.
8. An in-vehicle overhead type air conditioner, characterized by comprising:
a memory;
a processor; and
a computer program stored in the memory and configured to be executed by the processor to implement the control method of the in-vehicle overhead type air conditioner of any one of claims 1 to 7.
9. A vehicle characterized in that it comprises the on-vehicle overhead type air conditioner of claim 8.
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| CN202110320716.XA CN113085475B (en) | 2021-03-25 | 2021-03-25 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
| PCT/CN2022/073270 WO2022199239A1 (en) | 2021-03-25 | 2022-01-21 | Vehicle-mounted overhead air conditioner and control method therefor, and vehicle |
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| FR2682328B1 (en) * | 1991-10-15 | 1995-03-24 | Valeo Thermique Habitacle | INSTALLATION FOR HEATING THE COCKPIT OF A MOTOR VEHICLE, ESPECIALLY OF AN ELECTRICALLY POWERED VEHICLE. |
| DE4447285A1 (en) * | 1994-12-30 | 1996-07-04 | Eberspaecher J | Vehicle heater |
| JP5533772B2 (en) * | 2011-04-19 | 2014-06-25 | 株式会社デンソー | Air conditioner for vehicles |
| CN104204684B (en) * | 2012-03-21 | 2017-08-11 | 开利公司 | The coordination air side control of HVAC system |
| CN103423836B (en) * | 2012-04-24 | 2018-03-13 | 杭州三花研究院有限公司 | Vehicle air conditioner control method for overheat and vehicle air conditioner |
| CN105115064B (en) * | 2015-09-14 | 2018-03-30 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit and its cooling control method |
| JP6583195B2 (en) * | 2016-09-07 | 2019-10-02 | 株式会社デンソー | Air conditioner for vehicles |
| CN107856494A (en) * | 2017-10-20 | 2018-03-30 | 珠海格力电器股份有限公司 | Vehicle |
| CN209552864U (en) * | 2018-11-20 | 2019-10-29 | 珠海格力电器股份有限公司 | Vehicular top-mounted air conditioner and vehicle |
| CN109808446A (en) * | 2019-01-14 | 2019-05-28 | 重庆菲斯塔新能源汽车科技有限公司 | A kind of monitoring of in-car air quality and automatic ventilation control system |
| CN113085475B (en) * | 2021-03-25 | 2022-10-28 | 青岛海尔空调器有限总公司 | Vehicle-mounted overhead air conditioner, control method thereof and vehicle |
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