CN113085475B - Vehicle-mounted overhead air conditioner, control method thereof and vehicle - Google Patents

Abstract

The invention belongs to the technical field of air conditioners and aims to solve the problem that the air flow of the top air outlet of the vehicle-mounted overhead air conditioner does not match the heat exchange of the outdoor heat exchanger during the running of the vehicle. For this purpose, the present 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, and an air outlet corresponding to the outdoor heat exchanger is arranged on the top thereof, and an air outlet is arranged at the air outlet. The opening adjustment device, the vehicle and/or the vehicle overhead air conditioner is provided with a speed sensor, the vehicle overhead air conditioner includes a controller connected with the opening adjustment device and the speed sensor, and the control method includes: acquiring the current moving speed of the vehicle and Accordingly, the opening degree adjusting device is controlled to adjust the opening degree of the air outlet, wherein the opening degree of the air outlet is controlled to be negatively correlated with the current moving speed of the vehicle, so that the airflow flow of the air outlet matches the heat exchange of the outdoor heat exchanger , prolong the service life of the compressor and refrigerant circulation pipeline.

Description

Vehicle-mounted top-mounted air conditioner, control method thereof, and vehicle

technical field

The invention belongs to the technical field of air conditioners, and specifically provides a vehicle-mounted roof-mounted air conditioner, a control method thereof, and a vehicle.

Background technique

With the advancement of science and technology and the continuous improvement of people's living standards, air conditioners are widely used in people's daily life. Air conditioners are not only widely used in people's home environment, but also widely used in vehicles driven by people, which improves the temperature comfort in the driving space of the vehicle. Considering the limited interior space of the vehicle, the vehicle top-mounted air conditioner is the main type of vehicle air conditioner. The vehicle-mounted roof-mounted air conditioner is installed on the roof, its upper half is located on the upper part of the roof, and its lower half is located inside the vehicle. The interior air flows through the indoor heat exchanger for heat exchange and then returns to the car. The air inlet and/or air outlet of the external circulation air duct are set on the top of the vehicle-mounted air conditioner so that the outside air flows through the outdoor heat exchanger. Return to the outside of the car after the heat exchange.

During the process of cooling or heating the interior of the vehicle using the vehicle mounted air conditioner, the vehicle is usually in a driving state. During the running of the vehicle, the top of the vehicle-mounted air conditioner moves relative to the air in the environment, forming an airflow on the top that flows toward the rear of the vehicle, and the flowing airflow has a greater impact on the airflow flowing through the air outlet on the top of the vehicle-mounted air conditioner , the air flow rate of the air outlet on the top of the car air conditioner does not match the heat transfer capacity of the outdoor heat exchanger, resulting in irregular start and stop of the compressor and unstable pipeline pressure in the refrigerant circuit, affecting the compressor and refrigerant circulation pipeline service life.

Therefore, a new technical solution is needed in the art to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the airflow flow of the top air outlet of the vehicle-mounted air conditioner does not match the heat transfer amount of the outdoor heat exchanger during the vehicle running, on the one hand, the present invention provides A method for controlling a vehicle-mounted roof-mounted air conditioner. The vehicle-mounted roof-mounted air conditioner is installed in a vehicle, and the top of the vehicle-mounted roof-mounted air conditioner is provided with an air outlet corresponding to an outdoor heat exchanger, and the air outlet is provided with a The opening adjustment device, the vehicle and/or the vehicle-mounted air conditioner is provided with a speed sensor for detecting the moving speed of the vehicle, the vehicle-mounted air conditioner includes a controller, and the controller is connected with the vehicle The opening adjustment device is connected to the speed sensor, and the control method includes: obtaining 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 negatively correlated with the current moving speed of the vehicle.

In the preferred technical solution of the above control method, the opening of the air outlet is set to include n openings, the moving speed range of the vehicle is divided into n speed intervals, and the n number of air outlets The opening degree corresponds to the n speed ranges of the vehicle one by one, n is a positive integer greater than or equal to 2, and "control the opening degree adjusting device to adjust the opening degree of the air outlet according to the current moving speed of the vehicle" The steps include: judging the speed range of the current moving speed of the vehicle and determining the target opening degree of the air outlet; adjusting the opening degree of the air outlet to the target opening degree.

In the preferred technical solution of the above control method, the step of "controlling the opening adjustment device to adjust the opening of the air outlet according to the current moving speed of the vehicle" includes: according to the current moving speed of the vehicle according to the formula ( 1) calculating the target opening degree of the air outlet,

Adjusting the opening of the air outlet to the target opening; wherein, K is the target opening, V is the maximum moving speed that the vehicle can achieve, and v is the current moving speed of the vehicle.

In the preferred technical solution of the above control method, the air outlets include the first air outlets, ..., the i-th air outlets, ..., the p-th air outlets arranged in sequence along the direction of the vehicle from front to rear, "according to the vehicle The step of controlling the opening degree regulating device to adjust the opening degree of the air outlet according to the current moving speed includes: determining the target opening degree of the first air outlet according to the current moving speed of the vehicle; calculating according to formula (2) the target opening of the i-th air outlet,

K _i =K ₁ +(i-1)ΔK (2);

adjusting the opening degree of the first air outlet, ..., the opening degree of the i-th air outlet, ..., the opening degree of the p-th air outlet to the corresponding target opening degree; wherein, K ₁ is the opening degree of the first air outlet A target opening of the air outlet, K _i is the target opening of the i-th air outlet, 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 ΔK is the preset opening difference.

In the preferred technical solution of the above control method, the top of the vehicle mounted air conditioner is provided with an air inlet corresponding to the outdoor heat exchanger, and the control method further includes: increasing the The rotational speed of the fan at the air inlet; wherein, the amount of increase in the rotational speed of the fan at the air inlet is controlled to be positively correlated with the current moving speed of the vehicle.

In the preferred technical solution of the above control method, the moving speed range of the vehicle is delimited into n speed intervals, and the fan at the air inlet is set with n speed increases, and the n speed increases are the same as those of the vehicle The n speed ranges correspond one-to-one, and n is a positive integer greater than or equal to 2. The step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle" includes: judging the current moving speed of the vehicle The speed range in which it is located and determine the increase in the rotation speed of the fan at the air inlet; increase the rotation speed of the fan at the air inlet by the increase in rotation speed.

In the preferred technical solution of the above control method, the step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle" includes: calculating the The speed increase of the fan at the air inlet,

Increase the rotational speed of the fan at the air inlet by the rotational 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 ΔM is Preset speed increase amount.

In the preferred technical solution of the above control method, the air inlets include the first air inlets, ..., the jth air inlets, ..., the qth air inlets arranged in sequence along the direction of the vehicle from front to rear, "according to the vehicle The step of "increasing the speed of the fan at the air inlet at the current moving speed" includes: determining the increase in the speed of the fan at the first air inlet according to the current moving speed of the vehicle; calculating the second speed according to formula (4) The speed increase of the fan at the air inlet,

M _j =M ₁ -(j-1)Δm (4);

The rotational speed of the fan at the first air inlet, ..., the rotational speed of the fan at the jth air inlet, ..., the rotational speed of the fan at the qth air inlet is increased by the corresponding rotational speed increase _; wherein, M1 is the The speed increase of the fan at the first air inlet, Mj is the speed increase of the fan at the _jth air inlet, q is a positive integer greater than or equal to 2, j is a positive integer greater than or equal to 2 and less than or equal to q, Δm is the increase difference of the preset rotational speed.

Those skilled in the art can understand that, in the technical solution of the present invention, by setting the opening adjustment device at the top air outlet of the vehicle-mounted air conditioner, the vehicle and/or the vehicle-mounted air conditioner is provided with a function for detecting the vehicle. The speed sensor of the moving speed, the controller is connected with the opening adjusting device and the speed sensor, controls the opening adjusting device to adjust the opening of the air outlet according to the current moving speed of the vehicle, and can make the air outlet in the state of driving at different speeds. The corresponding opening makes the air flow of the air outlet match the heat transfer capacity of the outdoor heat exchanger, ensures that the compressor starts and stops regularly, and keeps the pipeline pressure in the refrigerant circuit relatively stable, thus extending the length of the compressor and the refrigerant circulation pipe. service life of the road. Since the speed detection is relatively convenient, the opening of the air outlet can be more conveniently controlled during the running of the vehicle. During the running of the vehicle, the flow velocity of the airflow that moves relatively to the top of the vehicle-mounted air conditioner is directly related to the moving speed of the vehicle, and the influence of the relatively moving airflow on the airflow at the air outlet of the vehicle-mounted air conditioner is directly related to its relative flow velocity , adjust the opening of the air outlet according to the moving speed of the vehicle, the opening of the air outlet can be adjusted more precisely, and the air flow of the air outlet can be more effectively matched with the heat exchange capacity of the outdoor heat exchanger.

On the other hand, the present invention also provides a vehicle top-mounted air conditioner, including: a memory; a processor; and a computer program, the computer program is stored in the memory and is configured to be executed by the processor to The method for controlling the vehicle-mounted top-mounted air conditioner in the above technical solution is realized.

In addition, the present invention also provides a vehicle, which includes the vehicle-mounted roof-mounted air conditioner in the above technical solution.

It should be noted that the vehicle-mounted roof-mounted air conditioner and the vehicle have all the technical effects of the above-mentioned control method, which will not be repeated here.

Description of drawings

Describe preferred embodiment of the present invention below with reference to accompanying drawing, in the accompanying drawing:

Fig. 1 is the main step figure of the control method of vehicle-mounted top-mounted air conditioner of the present invention;

Fig. 2 is a kind of specific step diagram of the control method of the vehicle-mounted roof-mounted air conditioner of the present invention;

Fig. 3 is a top view schematic diagram 1 of a vehicle-mounted roof-mounted air conditioner according to an embodiment of the present invention (the air outlet is fully opened);

Fig. 4 is a top view schematic diagram 2 of a vehicle-mounted roof-mounted air conditioner according to an embodiment of the present invention (the air outlet part is opened);

Fig. 5 is a diagram of specific steps of a control method of a vehicle-mounted roof-mounted air conditioner according to an embodiment of the present invention.

List of reference numbers:

1. Shell; 11. Top plate; 12. Side plate; 131. First air outlet; 132. Second air outlet; 14. Air inlet; 21. First linear motor; 22. First wind plate; 31. The second linear motor; 32, the second wind plate.

Detailed ways

First of all, those skilled in the art should understand that the embodiments described below are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the damper in the opening adjustment device in the embodiment of the present invention adjusts the opening of the air outlet in a translational manner, this does not limit the protection scope of the present invention, and those skilled in the art can make adjustments as needed. In order to adapt to specific application occasions, the air door in the opening adjustment device of the present invention can also be pivotally adjusted to adjust the opening of the air outlet. Obviously, the adjusted technical solution will still fall 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" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which are only It is for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In addition, it should be noted that in the description of the present invention, unless otherwise specified and limited, the terms "installation", "setting", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed The connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, or it can be an internal connection between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to FIG. 1 to FIG. 5 , the vehicle top-mounted air conditioner and its control method of the present invention will be introduced. Wherein, Fig. 1 is a diagram of the main steps of the control method of the vehicle-mounted air conditioner of the present invention, Fig. 2 is a diagram of specific steps of the control method of the vehicle-mounted air conditioner of the present invention, and Fig. 3 is a diagram of an embodiment of the present invention A schematic diagram of a top view of a vehicle-mounted roof-mounted air conditioner (the air outlet is fully opened), and Fig. 4 is a schematic diagram of a top view of a vehicle-mounted roof-mounted air conditioner according to an embodiment of the present invention (a state in which the air outlet is partially opened), and Fig. The specific steps of the control method of the vehicle top-mounted air conditioner according to this embodiment are shown.

Based on the problem mentioned in the background technology that the air flow rate of the top air outlet of the vehicle-mounted air conditioner does not match the heat transfer capacity of the outdoor heat exchanger during the running of the vehicle, the present invention provides a vehicle-mounted roof-mounted air conditioner and its Control Method. The vehicle-mounted roof-mounted air conditioner is installed on the vehicle. The top of the vehicle-mounted roof-mounted air conditioner is provided with an air outlet corresponding to the outdoor heat exchanger. The air outlet is provided with an opening adjustment device. The vehicle and/or the vehicle-mounted roof-mounted air conditioner is provided with The speed sensor detects the moving speed of the vehicle, and the vehicle-mounted air conditioner includes a controller, which is connected with the opening adjustment device and the speed sensor.

Those skilled in the art can understand that the speed sensor can be installed inside the dashboard of the vehicle to detect the speed of the output shaft of the gearbox and convert it into the speed of the vehicle, or the vehicle-mounted air conditioner is provided with a speed sensor based on real-time positioning information. The speed sensor for measuring its moving speed may also include two speed sensors that are simultaneously arranged on the vehicle and the vehicle-mounted roof-mounted air conditioner. In the case of including two speed sensors that are simultaneously arranged on the vehicle and the vehicle-mounted roof-mounted air conditioner, the controller can calculate the average value as the vehicle moving speed based on the vehicle moving speed measured by the two, so as to reduce the measurement error 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 adjustment device and the speed sensor, which can be connected through a wired communication line, or can be connected through wireless methods such as Bluetooth and WIFI. The opening degree adjusting device may be a device arranged at the air outlet and capable of moving the air door in a pivoting manner, translational manner or other suitable manners so as to change the opening degree of the air outlet.

As shown in Figure 1, the control method of the vehicle-mounted top-mounted air conditioner of the present invention mainly comprises the following steps:

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.

Step 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 negatively correlated with the current moving speed of the vehicle.

The domestic high-speed limit is 120km/h, and the moving speed of the vehicle is usually 0-120km/h during daily driving. The speed range from 0 to 120km/h can be divided into n speed intervals, and the opening of the air outlet is preset to be n openings corresponding to the n speed intervals one-to-one. For example, it is divided into five speed intervals, namely (0, 20) km/h, [20, 45) km/h, [45, 70) km/h, [70, 95) km/h, [95 , 120] km/h, the opening of the air outlet is preset to 1, 4/5, 3/5, 2/5, 1/5 corresponding to the speed range one by one. It should be noted that the opening degree is the ratio of the open cross-sectional area of the air outlet to its cross-sectional area. When the controller receives the current moving speed of the vehicle from the speed sensor, it judges the speed range in which the current moving speed of the vehicle falls, so as to determine the target opening of the air outlet. For example, the current moving speed of the vehicle is 50km/h, which falls into the speed range of [45, 70) km/h, and the corresponding opening of the air outlet is 3/5, the controller can determine the target opening of the current air outlet as 3/5, thereby controlling the opening adjustment device to make the opening of the air outlet reach 3/5.

According to the current speed of the vehicle, the opening adjustment device adjusts the opening of the air outlet, so that the air outlet is at the corresponding opening when the vehicle is at different moving speeds, thereby reducing the relative movement between the vehicle-mounted air conditioner and the air during the driving of the vehicle. The influence of air flow on the air flow of the air outlet, that is, to reduce the negative pressure area formed above the vehicle-mounted roof-mounted air conditioner during the driving of the vehicle to promote the air outlet, so that the air flow of the air outlet and the heat exchange of the outdoor heat exchanger To ensure that the compressor starts and stops regularly, so that the pipeline pressure in the refrigerant circuit remains relatively stable, thereby prolonging the service life of the compressor and the refrigerant circulation pipeline.

Those skilled in the art can understand that the five speed ranges and the number of openings of the air outlet are only a specific setting method, and those skilled in the art can adjust it according to needs, such as the number of speed ranges and the number of air outlets. The number of openings may be 3, 4, 6 or more, etc. Dividing the speed range of 0-120km/h into multiple speed intervals is also a specific setting method, and those skilled in the art can adjust them according to the actual situation. For example, the speed range can be 0-100km/h, 0-130km /h or 0~140km/h, etc.

Referring to FIG. 2, in another specific implementation manner, step S200 includes:

Step S210, according to the current moving speed of the vehicle, calculate the target opening of the air outlet according to the formula K=(V-v)/V, wherein K is the target opening, V is the maximum moving speed that the vehicle can reach, and v is the current moving speed of the vehicle . It can be understood that the maximum moving speed that the vehicle can reach may be the maximum moving speed that the vehicle itself is designed to reach, or it may be the maximum speed that the vehicle is restricted to travel while driving on the road.

Step S220, adjusting the opening degree of the air outlet to a target opening degree.

According to the formula K=(V-v)/V to calculate the target opening of the air outlet, the opening of the air outlet can be adjusted to the opening matching the speed at any speed of the vehicle, and the vehicle can be lowered more effectively. The influence of the relative airflow generated during driving on the airflow at the air outlet makes the airflow flowing through the outdoor heat exchanger more stable, ensures that the compressor starts and stops regularly, keeps the pipeline pressure in the refrigerant circuit relatively stable, and prolongs the compression period. The service life of the machine and the refrigerant circulation pipeline.

For some vehicle-mounted roof-mounted air conditioners, the air inlet of the external circulation air duct is also set at the top, and the relative air flow generated during the vehicle running will affect the gas flow of the air inlet and do not match the heat transfer capacity of the outdoor heat exchanger. .

Continuing to refer to Fig. 2, the control method of the vehicle-mounted roof-mounted air conditioner also includes "increasing the rotational speed of the fan at the air inlet according to the current moving speed of the vehicle, wherein the increased amount of the rotating speed of the fan at the air inlet is controlled to be equal to the current moving speed of the vehicle." Positive correlation" steps. Specifically, the following steps are included:

Step S310, according to the current moving speed of the vehicle, calculate the speed increase of the fan at the air inlet according to the formula M=v*ΔM/V, where M is the speed increase, v is the maximum moving speed that the vehicle can reach, and ΔM is the preset speed Increase amount.

The preset rotational speed increase ΔM is preset, for example, the preset rotational speed increase ΔM may be 20 rpm, 30 rpm or other suitable rotational speed increase.

Step S320, increasing the rotation speed of the fan at the air inlet by the rotation speed increase amount.

Through such setting, according to the speed of the vehicle, according to the formula M=v*ΔM/V, the speed increase of the fan at the air inlet is calculated and the speed of the air inlet is increased by the speed increase. The increase of the speed of the fan at the tuyere corresponds to the increase of the speed, thereby reducing the obstruction of the relative airflow generated during the driving of the vehicle to the airflow at the top air inlet of the vehicle air conditioner, so that the air flow at the air outlet and the heat exchange of the outdoor heat exchanger To ensure that the compressor starts and stops regularly, so that the pipeline pressure in the refrigerant circuit remains relatively stable, thereby prolonging the service life of the compressor and the refrigerant circulation pipeline.

In another feasible implementation manner, the moving speed range of the vehicle is divided into n speed intervals, and the fan at the air inlet is set with n speed increments corresponding to the n speed intervals one-to-one. For example, the speed range from 0 to 120km/h is divided into five speed intervals, which are (0, 20]km/h, (20, 45]km/h, (45, 70]km/h, (70 , 95]km/h, (95, 120]km/h, the speed increase of the fan at the air inlet is set to 10 rpm, 20 rpm, 30 rpm, 40 rpm corresponding to the speed range /min, 50 revs/min. When the controller receives the current moving speed of the vehicle from the speed sensor, it judges the speed range that the current moving speed of the vehicle falls into, so as to determine the amount of increase in the rotating speed of the fan at the air inlet. For example, The current moving speed of the vehicle is 75km/h, which falls into the speed range of (70, 95]km/h, and the corresponding speed increase of the fan at the air inlet is 40 rpm, and the controller can determine the current speed of the fan at the air inlet The amount of increase in the rotating speed is 40 rpm, so that the rotating speed of the fan controlling the air inlet is increased by 40 rpm.

For some vehicle-mounted roof-mounted air conditioners, the top is provided with multiple air outlets, and the multiple air outlets are the first air outlet, ..., the i-th air outlet, ..., the p-th air outlet, arranged in sequence along the direction of the vehicle from front to back, p is a positive integer greater than or equal to 2. The step S200 of the control method of the vehicle top-mounted air conditioner includes the following steps:

Determine the target opening degree of the first air outlet according to the current moving speed of the vehicle, and calculate the target opening degree of the i-th air outlet according to the formula K _i =K ₁ +(i-1)ΔK;

Adjust the opening of the first air outlet, ..., the opening of the i-th air outlet, ..., the opening of the p-th air outlet to the corresponding target opening;

Wherein, K ₁ is the target opening degree of the first air outlet, K _i is the target opening degree of the i-th air outlet, i is a positive integer greater than or equal to 2 and less than or equal to p, and ΔK is the preset opening degree difference. It can be understood that the preset opening degree difference ΔK may be 1/10, 3/10 or other values.

Through such a setting, the openings of the air outlets along the front and rear directions can be set differently, so that the relative air flow has different influences on the air flow of the air outlets arranged in the front and rear directions when the front and rear directions are set, and the front and rear directions can be controlled more precisely. The opening of the air outlet is set so that the gas flow rate of different air outlets matches the heat transfer amount of the corresponding part of the outdoor heat exchanger.

The following will be introduced with reference to Fig. 3 to Fig. 5 in combination with a vehicle-mounted roof-mounted air conditioner with two air outlets arranged along the front and rear directions on the top.

As shown in Figures 3 to 5 and with reference to the orientation shown in Figure 3, the vehicle mounted air conditioner includes a housing 1, and the top plate 11 of the housing 1 is distributed with a first air outlet 131 and a second air outlet from top to bottom. 132 , an air inlet 14 is provided on the side plate 12 of the lower side of the housing 1 (the side facing the rear of the vehicle when the vehicle mounted air conditioner is mounted on the vehicle). A first opening adjustment device and a second opening adjustment device are provided on the top plate 11 at positions on the left side of the first air outlet 131 and the second air outlet 132 respectively, and the first opening adjustment device and the second opening adjustment device are respectively It is used to adjust the opening degree of the first air outlet 131 and the second air outlet 132 . The first opening adjustment device includes a first linear motor 21 and a first wind plate 22 connected to the output shaft of the first linear motor 21 . The second opening adjustment device includes a second linear motor 31 and a second wind plate 32 connected to the output shaft of the second linear motor 31 .

A control method for a vehicle-mounted top-mounted air conditioner includes the following steps:

Step S100, acquiring the current moving speed of the vehicle.

Step S211 , calculate the target opening degree K ₁ of the first air outlet according to the formula K ₁ =(Vv)/V, and calculate the target opening degree K ₂ of the second air outlet according to the formula K ₂ =K ₁ +ΔK. Wherein, V is the maximum moving speed that the vehicle can reach, v is the current moving speed of the vehicle, and ΔK is the preset opening difference. Step S221 , adjusting the opening degrees of the first air outlet and the opening degrees of the second air outlet to corresponding target opening degrees.

For example, the maximum moving speed that the vehicle can reach is 120km/h, and the preset opening difference is 1/12. When it is detected that the current moving speed of the vehicle is 60 km/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 wind plate 22 and the second wind plate 32 to move to corresponding positions so that the opening of the first air outlet 131 and the opening of the second air outlet 132 The opening reaches 1/2 and 7/12.

Those skilled in the art can understand that the moving speed range of the vehicle can also be divided into n speed intervals, and the opening of the air outlet is set to include n openings corresponding to the n speed intervals of the vehicle one-to-one. Determine the speed range of the current moving speed of the vehicle and determine the target opening degree K ₁ of the first air outlet, and calculate the target opening degree of the i-th air outlet according to the formula K _i =K ₁ +(i-1)ΔK.

In another embodiment, the top of the vehicle-mounted air conditioner is provided with first air inlets, ..., jth air inlets, ..., qth air inlets arranged in sequence along the direction of the vehicle from front to rear, where q is greater than or equal to 2 positive integer of . The step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle, wherein the increase in the speed of the fan at the air inlet is controlled to be positively correlated with the current moving speed of the vehicle" includes:

Determine the amount of increase in the rotational speed of the fan at the first air inlet according to the current moving speed of the vehicle;

According to the formula M _j =M ₁ -(j-1)Δm, calculate the speed increase of the fan at the jth air inlet;

Increase the speed of the fan at the first air inlet, ..., the speed of the fan at the jth air inlet, ..., the speed of the fan at the qth air inlet by the corresponding increase in speed;

Among them, M1 is the increase in the speed of the fan at the _first air inlet, Mj is the increase in the speed of the fan at the _jth air inlet, q is a positive integer greater than or equal to 2, and j is a positive number greater than or equal to 2 and less than or equal to q. Integer, Δm is the increase difference of preset speed.

It can be understood that the speed increase of the fan at the first air inlet can be calculated according to the formula M=v*ΔM/V, or the moving speed range of the vehicle can be divided into n speed intervals, and the fan at the air inlet can be set to n There are a number of rotational speed increases corresponding to n speed ranges one by one, and the speed range in which the current moving speed of the vehicle is determined is determined and the rotational speed increase of the fan at the first air inlet is determined.

By setting in this way, the rotational speeds of the air inlets along the front and rear directions can be set differently, so that the influence of the relative air flow on the air flow of the air inlets arranged in the front and rear directions is different in the case of setting in the front and rear directions, so that the air flow in the front and rear directions can be controlled more precisely. The rotation speed of the fan at the air inlet, so that the gas flow of different air inlets matches the heat transfer amount of the corresponding part of the outdoor heat exchanger.

In another aspect, the present invention also provides a vehicle-mounted top-mounted air conditioner, including: a memory, a processor, and a computer program, the computer program is stored in the memory, and is configured to be executed by the processor to implement any of the above-mentioned embodiments A control method for a vehicle-mounted top-mounted air conditioner.

Those skilled in the art can understand that the memory in the above embodiments includes but not limited to random access memory, flash memory, read-only memory, programmable read-only memory, volatile memory, non-volatile memory, serial memory, parallel memory or Registers, etc., processors include but are not limited to CPLD/FPGA, DSP, ARM processors, MIPS processors, etc.

In addition, the present invention also provides a vehicle, which includes the vehicle-mounted roof-mounted air conditioner of the above embodiment.

It can be seen from the above description that in the technical solution of the present invention, the opening adjustment device is controlled according to the current moving speed of the vehicle to adjust the opening of the air outlet, so that the air outlet can be at the corresponding opening when the vehicle is running at different speeds. Make the air flow at the air outlet match the heat transfer capacity of the outdoor heat exchanger, ensure the compressor starts and stops regularly, and keep the pipeline pressure in the refrigerant circuit relatively stable, thereby prolonging the use of the compressor and the refrigerant circulation pipeline life.

Those skilled in the art will appreciate that although some of the embodiments described herein include some features and not others that are included in other embodiments, combinations of features from 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 one of the claimed embodiments can be used in any combination.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims (9)

1. A control method for a vehicle-mounted roof-mounted air conditioner, said vehicle-mounted roof-mounted air conditioner is installed in a vehicle, characterized in that the top of said vehicle-mounted roof-mounted air conditioner is provided with an air outlet corresponding to an outdoor heat exchanger, so The air outlet is provided with an opening adjustment device, and the vehicle and/or the vehicle-mounted air conditioner is provided with a speed sensor for detecting the moving speed of the vehicle, and the vehicle-mounted air conditioner includes a controller. The controller is connected with the opening adjustment device and the speed sensor, and the control method includes: Obtain the current moving speed of the vehicle; controlling the opening adjustment device to adjust the opening of the air outlet according to the current moving speed of the vehicle; Wherein, the opening of the air outlet is controlled to be negatively correlated with the current moving speed of the vehicle; The top of the vehicle-mounted air conditioner is provided with an air inlet corresponding to the outdoor heat exchanger, and the control method further includes: increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle; Wherein, the rotational speed increase of the fan at the air inlet is controlled to be positively correlated with the current moving speed of the vehicle. 2. The control method according to claim 1, wherein the opening of the air outlet is set to include n openings, and the moving speed range of the vehicle is divided into n speed intervals, so The n openings of the air outlet are in one-to-one correspondence with the n speed ranges of the vehicle, and n is a positive integer greater than or equal to 2, The step of "controlling the opening adjustment device to adjust the opening of the air outlet according to the current moving speed of the vehicle" includes: Judging the speed range in which the current moving speed of the vehicle is located and determining the target opening of the air outlet; The opening degree of the air outlet is adjusted to the target opening degree. 3. The control method according to claim 1, wherein the step of "controlling the opening adjustment device to adjust the opening of the air outlet according to the current moving speed of the vehicle" comprises: 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; Wherein, K is the target opening, V is the maximum moving speed that the vehicle can reach, and v is the current moving speed of the vehicle. 4. The control method according to claim 2 or 3, wherein the air outlets include first air outlets, ..., i-th air outlets, ..., p-th air outlets arranged in sequence along the direction of the vehicle from front to rear outlet, The step of "controlling the opening adjustment device to adjust the opening of the air 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; according to the formula

calculating the target opening degree of the i-th air outlet, adjusting the opening degree of the first air outlet, ..., the opening degree of the i-th air outlet, ..., the opening degree of the p-th air outlet to a corresponding target opening degree; in,

is the target opening of the first air outlet,

is the target opening degree of the i-th air outlet, p is a positive integer greater than or equal to 2, and i is a positive integer greater than or equal to 2 and less than or equal to p,

is the preset opening difference. 5. The control method according to claim 1, characterized in that, the moving speed range of the vehicle is delimited into n speed intervals, the fan at the air inlet is set with n speed increments, and the n speeds The amount of increase is in one-to-one correspondence with the n speed ranges of the vehicle, n is a positive integer greater than or equal to 2, The step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle" includes: Judging the speed range in which the current moving speed of the vehicle is located and determining the increase in the speed of the fan at the air inlet; Increase the rotational speed of the fan at the air inlet by the rotational speed increase amount. 6. The control method according to claim 1, wherein the step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle" comprises: According to the current moving speed of the vehicle according to the formula

Calculate the amount of increase in the speed of the fan at the air inlet, increasing the rotational speed of the fan at the air inlet by the rotational speed increase amount; Wherein, M is the amount of increase in the rotational speed, v is the current moving speed of the vehicle, and V is the maximum moving speed that the vehicle can reach,

Increase amount for preset RPM. 7. The control method according to claim 5 or 6, wherein the air inlets include first air inlets, ..., jth air inlets, ..., qth air inlets arranged in sequence along the direction of the vehicle from front to rear. Inlet, The step of "increasing the speed of the fan at the air inlet according to the current moving speed of the vehicle" includes: determining an increase in the rotational speed of the fan at the first air inlet according to the current moving speed of the vehicle; according to the formula

calculating the increase in speed of the fan at the jth air inlet, increasing the speed of the fan at the first air inlet, ..., the speed of the fan at the jth air inlet, ..., the speed of the fan at the qth air inlet by a corresponding increase in speed; in,

is the increase in the rotational speed of the fan at the first air inlet,

is the increase in speed of the fan at the jth air inlet, q is a positive integer greater than or equal to 2, and j is a positive integer greater than or equal to 2 and less than or equal to q,

Increase difference for preset speed. 8. A vehicle-mounted top-mounted air conditioner, characterized in that it comprises: memory; processor; and A computer program, the computer program is stored in the memory and is configured to be executed by the processor to implement the method for controlling the vehicle mounted air conditioner according to any one of claims 1 to 7. 9. A vehicle, characterized in that the vehicle comprises the vehicle-mounted roof-mounted air conditioner according to claim 8.

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