CN108343597B - Compressor control method and device - Google Patents
Compressor control method and device Download PDFInfo
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- CN108343597B CN108343597B CN201810053850.6A CN201810053850A CN108343597B CN 108343597 B CN108343597 B CN 108343597B CN 201810053850 A CN201810053850 A CN 201810053850A CN 108343597 B CN108343597 B CN 108343597B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/12—Parameters of driving or driven means
- F04B2201/1201—Rotational speed of the axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2207/00—External parameters
- F04B2207/03—External temperature
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- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a compressor control method, a compressor control device and a vehicle, wherein the compressor control method comprises the following steps: acquiring the current temperature of a target component, and judging whether the current temperature reaches a preset first temperature or not; wherein the target component is connected to the compressor; if the current temperature reaches the preset first temperature, starting the compressor; and acquiring a difference value between the current temperature and the preset first temperature, and controlling the compressor to operate according to a rotating speed matched with the difference value. The technical scheme provided by the invention solves the problem that the existing compressor has a specific rotating speed in the operation process.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor control method and device.
Background
The compressor is widely used in systems such as air conditioners, refrigerators and the like because the compressor provides power for a refrigeration cycle. With the rapid development of technology, the technical innovation of the compressor is continuously generated, and the typical transformation is to replace the traditional compressor driven by a belt with an electric compressor driven by high-pressure electricity. However, most of the conventional electric compressors are controlled in an ON/OFF mode, in which the compressor is turned ON when a system condition is met, and the compressor is operated at a specific rotational speed until the compressor is turned OFF. Thus, the compressor is at a particular speed during operation, such that the speed of the compressor is not matched to the system load.
Disclosure of Invention
The embodiment of the invention provides a compressor control method and a vehicle, and aims to solve the problem that the conventional compressor has a specific rotating speed in the operation process.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a compressor control method, including:
acquiring the current temperature of a target component, and judging whether the current temperature reaches a preset first temperature or not; wherein the target component is connected to the compressor;
if the current temperature reaches the preset first temperature, starting the compressor;
and acquiring a difference value between the current temperature and the preset first temperature, and controlling the compressor to operate according to a rotating speed matched with the difference value.
Optionally, the step of obtaining a difference between the current temperature and the preset first temperature and controlling the compressor to operate at a rotation speed matched with the difference includes:
acquiring a corresponding relation between a preset temperature value interval and a rotating speed, and calculating a difference value between the current temperature and the preset first temperature;
and determining a temperature value interval corresponding to the difference value, and controlling the compressor to operate according to the rotating speed corresponding to the temperature value interval.
Optionally, after the step of obtaining the difference between the current temperature and the preset first temperature and controlling the compressor to operate at the rotation speed matched with the difference, the method further includes:
if the current temperature of the target component is increased, acquiring the current rotating speed of the compressor;
judging whether the current rotating speed of the compressor reaches a preset maximum rotating speed or not;
if the current rotating speed of the compressor is judged not to reach the preset maximum rotating speed, controlling the compressor to operate according to a first control mode; the first control mode is as follows: when the current temperature rises to a preset temperature value, controlling the current rotating speed of the compressor to increase by a preset rotating speed;
and if the current rotating speed of the compressor reaches the preset maximum rotating speed, controlling the compressor to operate according to the preset maximum rotating speed.
Optionally, after the step of obtaining the difference between the current temperature and the preset first temperature and controlling the compressor to operate at the preset rotation speed matched with the difference, the method further includes:
if the current temperature of the target component is reduced, judging whether the current temperature is lower than a preset second temperature; the preset second temperature is less than the preset first temperature;
if the current temperature is lower than a preset second temperature, judging whether the current rotating speed is higher than a preset minimum rotating speed or not;
if the current rotating speed is judged to be greater than the preset minimum rotating speed, controlling the compressor to operate according to a second control mode; the second control mode is as follows: when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed;
and if the current rotating speed is judged to be less than or equal to the preset minimum rotating speed, closing the compressor.
In a second aspect, an embodiment of the present invention further provides a compressor control apparatus, including:
the first acquisition module is used for acquiring the current temperature of the target component and judging whether the current temperature reaches a preset first temperature or not; wherein the target component is connected to the compressor;
the starting module is used for starting the compressor if the current temperature reaches the preset first temperature;
and the first control module is used for acquiring a difference value between the current temperature and the preset first temperature and controlling the compressor to operate according to a rotating speed matched with the difference value.
Optionally, the first control module includes:
the calculating unit is used for acquiring the corresponding relation between a preset temperature value interval and the rotating speed and calculating the difference value between the current temperature and the preset first temperature;
and the control unit is used for determining a temperature value interval corresponding to the difference value and controlling the compressor to operate according to the rotating speed corresponding to the temperature value interval.
Optionally, the apparatus further comprises:
the second acquisition module is used for acquiring the current rotating speed of the compressor if the current temperature of the target component is increased;
the first judgment module is used for judging whether the current rotating speed of the compressor reaches a preset maximum rotating speed or not;
the second control module is used for controlling the compressor to operate according to a first control mode if the current rotating speed of the compressor is judged not to reach the preset maximum rotating speed; the first control mode is as follows: when the current temperature rises to a preset temperature value, controlling the current rotating speed of the compressor to increase by a preset rotating speed;
and the third control module is used for controlling the compressor to operate according to the preset maximum rotating speed if the current rotating speed of the compressor reaches the preset maximum rotating speed.
Optionally, the apparatus further comprises:
the second judgment module is used for judging whether the current temperature is lower than a preset second temperature or not if the current temperature of the target component is reduced; the preset second temperature is less than the preset first temperature;
the third judging module is used for judging whether the current rotating speed is greater than a preset minimum rotating speed or not if the current temperature is less than a preset second temperature;
the fourth control module is used for controlling the compressor to operate according to a second control mode if the current rotating speed is judged to be greater than the preset minimum rotating speed; the second control mode is as follows: when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed;
and the closing module is used for closing the compressor if the current rotating speed is judged to be less than or equal to the preset minimum rotating speed.
In a third aspect, embodiments of the present invention further provide a vehicle, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the compressor control method according to the first aspect.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the compressor control method as described in the first aspect.
In the embodiment of the invention, the current temperature of the target component is obtained, and when the current temperature is judged to reach the preset first temperature, the compressor is started, so that the difference value between the current temperature and the preset first temperature is obtained, and the compressor is controlled to operate according to the rotating speed matched with the difference value. Therefore, the operation of the compressor can realize the opening control according to the temperature of the target component, and the rotating speed corresponding to the current temperature of the target component can be intelligently selected, so that the rotating speed of the compressor in the operation process can be changed, the rotating speed of the compressor is more matched with the system load, and the operation performance of the compressor is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a compressor control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of another compressor control method provided by an embodiment of the present invention;
fig. 3 is a structural diagram of a compressor control apparatus according to an embodiment of the present invention;
fig. 4 is a block diagram of another compressor control apparatus according to an embodiment of the present invention;
fig. 5 is a structural diagram of another compressor control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a compressor control method according to an embodiment of the present invention, as shown in fig. 1, including the following steps:
The target component is connected to the compressor. Specifically, the compressor is an electric compressor, and the compressor control method may be applied to a system having the compressor, such as an air conditioning system, a refrigerator system, or a battery system of a new energy vehicle. When the compressor control method is applied to an air conditioning system, the target component may be an evaporator, and when the compressor control method is applied to a battery system of a new energy vehicle, the target component may be a water-gas separator. In the following embodiments of the present invention, the compressor control method will be described as being applied to a vehicle air conditioning system, and the target component will be an evaporator.
As will be appreciated, the on-board air conditioning system includes a condenser, an evaporator, a compressor, a blower, and the like. The compressor may compress the refrigerant into a high-temperature and high-pressure gas state by sucking the low-temperature and low-pressure gas refrigerant into an outlet of the evaporator, and discharge the gas refrigerant to the condenser. The on-board air conditioning system can be started through a starting button arranged in a vehicle cab. It should be noted that the evaporator may be provided with a temperature sensor, and the temperature of the evaporator is acquired by the temperature sensor. When a start button in the vehicle cabin is pressed, it can be considered that a user in the vehicle has a cooling demand, and cooling may be achieved by turning on the vehicle-mounted air conditioning system. The current temperature of the evaporator is obtained through the temperature sensor, and whether the current temperature reaches a preset first temperature or not is judged, namely whether the current temperature is larger than or equal to the preset first temperature or not is judged.
In the embodiment of the present invention, the preset first temperature may be a specific temperature set by a user, or may also be an appropriate temperature summarized according to a plurality of experiments before the vehicle leaves a factory.
And 102, if the current temperature reaches the preset first temperature, starting the compressor.
That is, when it is determined that the current temperature of the evaporator is greater than or equal to a preset first temperature, the compressor is turned on. Thus, the starting of the compressor can be controlled according to the temperature of the evaporator.
And 103, acquiring a difference value between the current temperature and the preset first temperature, and controlling the compressor to operate according to a rotating speed matched with the difference value.
Specifically, the current temperature of the evaporator is greater than the preset first temperature, and after the compressor is started, the difference between the current temperature of the evaporator and the preset first temperature is calculated. And then determining a temperature value interval to which the difference value belongs, determining the rotating speed corresponding to the difference value according to the corresponding relation between the preset temperature value interval and the rotating speed, and controlling the compressor to operate according to the rotating speed corresponding to the difference value.
In this embodiment of the present invention, the step 103 includes:
acquiring a corresponding relation between a preset temperature value interval and a rotating speed, and calculating a difference value between the current temperature and the preset first temperature;
and determining a temperature value interval corresponding to the difference value, and controlling the compressor to operate according to the rotating speed corresponding to the temperature value interval.
It should be noted that the correspondence between the preset temperature value interval and the rotation speed may be a preset correspondence. For example, a preset maximum temperature of the evaporator may be preset, the preset maximum temperature being greater than a preset first temperature, and a temperature difference between the preset maximum temperature and the preset first temperature may be equally divided into a plurality of temperature sections. Assuming that the preset maximum temperature is 50 ° and the preset first temperature is 25 °, the temperature difference between the preset maximum temperature and the preset first temperature is equally divided into 5 temperature intervals, that is, every 5 ° is a temperature interval, and each temperature interval corresponds to a rotation speed. If the first temperature interval is 0-5 degrees, corresponding to a first rotating speed; the second temperature interval is 5-10 degrees and corresponds to a second rotating speed; the third temperature interval is 10-15 degrees and corresponds to a third rotating speed; the fourth temperature interval is 15-20 degrees and corresponds to a fourth rotating speed; the fifth temperature interval is 20-25 degrees, corresponding to the fifth rotating speed. And when the difference value between the current temperature of the evaporator and the preset first temperature is 7 degrees, determining that the rotating speed matched with the difference value is a second rotating speed corresponding to a second temperature interval, and controlling the compressor to operate according to the second rotating speed.
It should be noted that each of the temperature intervals corresponds to a specific rotation speed. Assuming that five temperature intervals correspond to five rotating speeds, the five rotating speeds can be sequentially increased according to a certain rotating speed value, for example, the difference value between the second rotating speed and the first rotating speed is equal to the difference value between the third rotating speed and the second rotating speed; the five rotation speeds can also be increased in sequence according to a certain proportional relation, for example, the proportional relation between the second rotation speed and the first rotation speed is equal to the proportional relation between the third rotation speed and the second rotation speed; alternatively, the five rotational speeds may be specific rotational speed values without any mathematical relationship.
In the embodiment of the invention, the current temperature of the target component is obtained, and when the current temperature is judged to reach the preset first temperature, the compressor is started, so that the difference value between the current temperature and the preset first temperature is obtained, and the compressor is controlled to operate according to the rotating speed matched with the difference value. Therefore, the operation of the compressor can realize the opening control according to the temperature of the target component, and the rotating speed corresponding to the current temperature of the target component can be intelligently selected, so that the rotating speed of the compressor in the operation process can be changed, the rotating speed of the compressor is more matched with the system load, and the operation performance of the compressor is improved.
Referring to fig. 2, fig. 2 is a flowchart of another compressor control method according to an embodiment of the present invention, and as shown in fig. 2, the compressor control method includes:
This step can be implemented with reference to step 101 in the embodiment shown in fig. 1, and is not described in detail in the embodiment of the present invention to avoid repetition.
This step can be implemented with reference to step 102 in the embodiment shown in fig. 1, and is not described in detail in the embodiment of the present invention to avoid repetition.
And 203, acquiring a difference value between the current temperature and the preset first temperature, and controlling the compressor to operate according to a rotating speed matched with the difference value.
This step can be implemented with reference to step 103 in the embodiment shown in fig. 1, and is not described in detail in the embodiment of the present invention to avoid repetition.
And 204, if the current temperature of the target component is increased, acquiring the current rotating speed of the compressor.
In the embodiment of the present invention, the compressor control method is applied to a vehicle-mounted air conditioning system, and the target component is an evaporator. When the compressor is started, a temperature sensor arranged on the evaporator acquires the current temperature of the evaporator in real time; or the current temperature of the evaporator may be acquired every preset time, for example, every 10 minutes, and it is determined whether the current temperature of the evaporator is increased. That is, it is determined whether the current temperature of the evaporator is greater than the temperature corresponding to the previous interval time.
And when the current temperature of the evaporator is greater than the temperature corresponding to the previous interval time, which means that the current temperature of the evaporator is increased, acquiring the current rotating speed of the compressor at the moment.
And step 205, judging whether the current rotating speed of the compressor reaches a preset maximum rotating speed.
It will be appreciated that the compressor has a maximum speed that can be tolerated for continuous operation, i.e. the maximum speed that the compressor is designed to allow for a long period of continuous operation.
In the embodiment of the invention, the temperature difference value between the preset maximum temperature of the evaporator and the preset first temperature is equally divided into a plurality of temperature intervals; the preset first temperature corresponds to a preset first rotating speed of the compressor, and the difference value between the preset maximum rotating speed and the preset first rotating speed is equally divided into a plurality of rotating speed intervals, so that each temperature interval corresponds to one rotating speed interval.
When the current temperature of the evaporator rises, the difference value between the current temperature of the evaporator and the preset first temperature is increased, and the rotating speed corresponding to the difference value is changed. And when the current temperature of the evaporator is increased to reach a temperature interval with the difference value of the preset first temperature, the current rotating speed of the compressor is correspondingly increased by a rotating speed interval. It can be understood that when the current temperature of the evaporator increases, the current rotation speed of the compressor is correspondingly obtained, and whether the current rotation speed of the compressor reaches the preset maximum rotation speed or not is judged, that is, whether the current rotation speed of the compressor is greater than or equal to the preset maximum rotation speed or not is judged.
And step 206, if not, controlling the compressor to operate according to the first control mode.
That is, if the current rotation speed of the compressor is less than the preset maximum rotation speed, the compressor is controlled to operate according to a first control mode. In an embodiment of the present invention, the first control mode is: and when the current temperature is higher than a preset temperature value per liter, controlling the current rotating speed of the compressor to increase by a preset rotating speed.
It should be noted that the preset temperature value and the preset rotation speed may be preset by a user. For example, the preset temperature value is 5 °, and the preset rotation speed is 100 revolutions. When the current temperature rises by 5 degrees, the current rotating speed of the compressor is increased by 100 revolutions; when the current temperature rises by 10 °, the current rotational speed of the compressor is increased by 200 revolutions accordingly. Therefore, the rotating speed of the compressor can be controlled to be adjusted regularly, the rotating speed of the compressor is reasonably controlled in a range corresponding to the temperature of the evaporator, the rotating speed of the compressor is prevented from being increased suddenly, and the performance stability of the compressor is facilitated.
And step 207, if so, controlling the compressor to operate according to the preset maximum rotating speed.
And if the current rotating speed of the compressor reaches a preset maximum rotating speed, namely the current rotating speed of the compressor is greater than or equal to the preset maximum rotating speed, controlling the compressor to operate according to the preset maximum rotating speed. In this way, the compressor can be controlled to operate in a reasonable rotating speed range.
It should be noted that, when the current rotation speed of the compressor reaches the preset maximum rotation speed, the current temperature of the evaporator may be the preset maximum temperature, or may also continue to increase, and the current temperature of the evaporator is not affected by the preset maximum rotation speed of the compressor.
And 208, if the current temperature of the target component is reduced, judging whether the current temperature is lower than a preset second temperature.
It can be understood that the vehicle-mounted air conditioning system can further comprise an air blower which is arranged adjacent to the evaporator and used for achieving the heat dissipation and cooling effects on the evaporator. During the operation of the vehicle-mounted air conditioning system, the temperature of the evaporator is reduced due to the action of the air blower. And when the current temperature of the evaporator is reduced, judging whether the current temperature of the evaporator is less than a preset second temperature.
In an embodiment of the present invention, the preset second temperature is lower than the preset first temperature.
That is, when it is determined that the current temperature of the evaporator is less than the preset second temperature, the current rotational speed of the compressor is acquired, and it is determined whether the current rotational speed of the compressor is greater than a preset minimum rotational speed. Wherein the preset minimum rotation speed may be set by a user.
And 210, if so, controlling the compressor to operate according to a second control mode.
In this embodiment of the present invention, the second control mode is: and when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed.
That is, when it is determined that the current rotation speed of the compressor is greater than the preset minimum rotation speed, the compressor is controlled to operate in a second control mode. It will be appreciated that the compressor will only be turned on when the current temperature of the evaporator reaches the preset first temperature. The preset second temperature is lower than the preset first temperature, that is, the temperature of the evaporator may be lowered during the operation of the compressor and the evaporator, for example, the temperature of the evaporator may be lowered by a blower fan disposed adjacent to the evaporator. And when the temperature of the evaporator is reduced to a preset second temperature and below, controlling the current rotating speed of the compressor to reduce the preset rotating speed every time the current temperature of the evaporator is reduced by the preset temperature value. For example, the preset temperature value is 5 °, and the preset rotation speed is 100 revolutions. When the current temperature is reduced by 5 degrees, the current rotating speed of the compressor is reduced by 100 revolutions; when the current temperature decreases by 10 °, the current rotational speed of the compressor decreases by 200 revolutions accordingly.
It should be noted that, when the current temperature of the evaporator is decreased and is greater than the preset second temperature, the rotation speed of the compressor is controlled not to change. For example, the current rotation speed of the compressor is a preset maximum rotation speed, and if the current temperature of the evaporator is reduced but the current temperature of the evaporator is higher than a preset second temperature, the compressor is controlled to operate at the preset maximum rotation speed. And when the current temperature of the evaporator is continuously reduced and is reduced to be lower than a preset second temperature, controlling the current rotating speed of the compressor to be reduced by the preset rotating speed when the current temperature of the evaporator is reduced by the preset temperature value. Therefore, the rotating speed of the compressor can be regularly adjusted according to the temperature of the evaporator, and the control of the compressor can be more intelligent.
It should be noted that the preset temperature value and the preset rotation speed in the second control mode may be equal to the preset temperature value and the preset rotation speed in the first control mode.
And step 211, if not, closing the compressor.
That is, when it is determined that the current rotational speed of the compressor is less than or equal to a preset minimum rotational speed, the compressor is turned off.
In the embodiment of the invention, when the current temperature of the target component is increased and the current rotating speed of the compressor does not reach the preset maximum rotating speed, the compressor is controlled to operate according to a first control mode; and when the current temperature of the target component is reduced and is lower than the preset second temperature and the current rotating speed of the compressor is higher than the preset minimum rotating speed, controlling the compressor to operate according to a second control mode. Therefore, the compressor can correspondingly increase or decrease according to the temperature change of the target component, sudden opening or closing of the compressor is prevented, the phenomenon that the performance of the compressor is affected due to frequent opening or closing of the compressor is avoided, and the service life of the compressor is prolonged.
Referring to fig. 3, fig. 3 is a structural diagram of a compressor control device according to an embodiment of the present invention, and as shown in fig. 3, the compressor control device 300 includes:
a first obtaining module 301, configured to obtain a current temperature of a target component, and determine whether the current temperature reaches a preset first temperature; wherein the target component is connected to the compressor;
an opening module 302, configured to open the compressor if the current temperature reaches the preset first temperature;
and the first control module 303 is configured to obtain a difference between the current temperature and the preset first temperature, and control the compressor to operate at a rotation speed matched with the difference.
Optionally, as shown in fig. 4, the first control module 303 includes:
a calculating unit 3031, configured to obtain a corresponding relationship between a preset temperature value interval and a rotation speed, and calculate a difference between the current temperature and the preset first temperature;
and a control unit 3032, configured to determine a temperature value interval corresponding to the difference, and control the compressor to operate at a rotation speed corresponding to the temperature value interval.
Optionally, as shown in fig. 5, the compressor control device further includes:
a second obtaining module 304, configured to obtain a current rotation speed of the compressor if a current temperature of the target component is increased;
a first judging module 305, configured to judge whether a current rotation speed of the compressor reaches a preset maximum rotation speed;
the second control module 306 is configured to control the compressor to operate according to a first control mode if it is determined that the current rotational speed of the compressor does not reach a preset maximum rotational speed; the first control mode is as follows: when the current temperature rises to a preset temperature value, controlling the current rotating speed of the compressor to increase by a preset rotating speed;
a third control module 307, configured to control the compressor to operate at a preset maximum rotation speed if the current rotation speed of the compressor reaches the preset maximum rotation speed;
a second determining module 308, configured to determine whether the current temperature of the target component is lower than a preset second temperature if the current temperature of the target component is lowered; the preset second temperature is less than the preset first temperature;
a third determining module 309, configured to determine whether the current rotation speed is greater than a preset minimum rotation speed if the current temperature is less than a preset second temperature;
the fourth control module 310 is configured to control the compressor to operate according to a second control mode if it is determined that the current rotation speed is greater than a preset minimum rotation speed; the second control mode is as follows: when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed;
and a closing module 311, configured to close the compressor if it is determined that the current rotation speed is less than or equal to a preset minimum rotation speed.
In the embodiment of the invention, the current temperature of the target component is obtained, and when the current temperature is judged to reach the preset first temperature, the compressor is started, so that the difference value between the current temperature and the preset first temperature is obtained, and the compressor is controlled to operate according to the rotating speed matched with the difference value. Therefore, the operation of the compressor can realize the opening control according to the temperature of the target component, and the rotating speed corresponding to the current temperature of the target component can be intelligently selected, so that the rotating speed of the compressor in the operation process can be changed, the rotating speed of the compressor is more matched with the system load, and the operation performance of the compressor is improved.
Optionally, an embodiment of the present invention further provides a vehicle, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the above-mentioned compressor control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned compressor control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A compressor control method, comprising:
acquiring the current temperature of a target component, and judging whether the current temperature reaches a preset first temperature or not; wherein the target component is connected to the compressor;
if the current temperature reaches the preset first temperature, starting the compressor;
acquiring a difference value between the current temperature and the preset first temperature, and controlling the compressor to operate at a rotating speed matched with the difference value; the rotating speeds matched with the difference values are multiple, and the multiple rotating speeds are in a sequentially increasing relation;
if the current temperature of the target component is increased, acquiring the current rotating speed of the compressor;
judging whether the current rotating speed of the compressor reaches a preset maximum rotating speed or not;
if the current rotating speed of the compressor is judged not to reach the preset maximum rotating speed, controlling the compressor to operate according to a first control mode; the first control mode is as follows: when the current temperature rises to a preset temperature value, controlling the current rotating speed of the compressor to increase by a preset rotating speed;
and if the current rotating speed of the compressor reaches the preset maximum rotating speed, controlling the compressor to operate according to the preset maximum rotating speed.
2. The method as claimed in claim 1, wherein the step of obtaining the difference between the current temperature and the preset first temperature and controlling the compressor to operate at a rotation speed matched with the difference comprises:
acquiring a corresponding relation between a preset temperature value interval and a rotating speed, and calculating a difference value between the current temperature and the preset first temperature;
and determining a temperature value interval corresponding to the difference value, and controlling the compressor to operate according to the rotating speed corresponding to the temperature value interval.
3. The method of claim 1, wherein after the step of obtaining the difference between the current temperature and the preset first temperature and controlling the compressor to operate at a preset rotation speed matching the difference, the method further comprises:
if the current temperature of the target component is reduced, judging whether the current temperature is lower than a preset second temperature; the preset second temperature is less than the preset first temperature;
if the current temperature is lower than a preset second temperature, judging whether the current rotating speed is higher than a preset minimum rotating speed or not;
if the current rotating speed is judged to be greater than the preset minimum rotating speed, controlling the compressor to operate according to a second control mode; the second control mode is as follows: when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed;
and if the current rotating speed is judged to be less than or equal to the preset minimum rotating speed, closing the compressor.
4. A compressor control apparatus, comprising:
the first acquisition module is used for acquiring the current temperature of the target component and judging whether the current temperature reaches a preset first temperature or not; wherein the target component is connected to the compressor;
the starting module is used for starting the compressor if the current temperature reaches the preset first temperature;
the first control module is used for acquiring a difference value between the current temperature and the preset first temperature and controlling the compressor to operate according to a rotating speed matched with the difference value; the rotating speeds matched with the difference values are multiple, and the multiple rotating speeds are in a sequentially increasing relation;
the second acquisition module is used for acquiring the current rotating speed of the compressor if the current temperature of the target component is increased;
the first judgment module is used for judging whether the current rotating speed of the compressor reaches a preset maximum rotating speed or not;
the second control module is used for controlling the compressor to operate according to a first control mode if the current rotating speed of the compressor is judged not to reach the preset maximum rotating speed; the first control mode is as follows: when the current temperature rises to a preset temperature value, controlling the current rotating speed of the compressor to increase by a preset rotating speed;
and the third control module is used for controlling the compressor to operate according to the preset maximum rotating speed if the current rotating speed of the compressor reaches the preset maximum rotating speed.
5. The apparatus of claim 4, wherein the first control module comprises:
the calculating unit is used for acquiring the corresponding relation between a preset temperature value interval and the rotating speed and calculating the difference value between the current temperature and the preset first temperature;
and the control unit is used for determining a temperature value interval corresponding to the difference value and controlling the compressor to operate according to the rotating speed corresponding to the temperature value interval.
6. The apparatus of claim 4, further comprising:
the second judgment module is used for judging whether the current temperature is lower than a preset second temperature or not if the current temperature of the target component is reduced; the preset second temperature is less than the preset first temperature;
the third judging module is used for judging whether the current rotating speed is greater than a preset minimum rotating speed or not if the current temperature is less than a preset second temperature;
the fourth control module is used for controlling the compressor to operate according to a second control mode if the current rotating speed is judged to be greater than the preset minimum rotating speed; the second control mode is as follows: when the current temperature is reduced by the preset temperature value, controlling the current rotating speed of the compressor to reduce the preset rotating speed;
and the closing module is used for closing the compressor if the current rotating speed is judged to be less than or equal to the preset minimum rotating speed.
7. A vehicle, characterized by comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the compressor control method according to any one of claims 1 to 3.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the compressor control method according to any one of claims 1 to 3.
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| CN110217078A (en) * | 2019-05-20 | 2019-09-10 | 北京汽车集团越野车有限公司 | Control method, control system and the vehicle of compressor for vehicle |
| CN110341438A (en) * | 2019-06-26 | 2019-10-18 | 北京长城华冠汽车科技股份有限公司 | Compressor rotary speed control method, device, storage medium and on-board air conditioner |
| CN110843466B (en) * | 2019-11-27 | 2021-05-14 | 北京汽车集团越野车有限公司 | Control method and device for vehicle compressor |
| CN113002272A (en) * | 2019-12-20 | 2021-06-22 | 北京宝沃汽车股份有限公司 | Vehicle-mounted air conditioner compressor rotation speed control method and device, vehicle-mounted air conditioner and vehicle |
| CN113909006B (en) * | 2021-10-18 | 2024-05-10 | 青岛海尔生物医疗科技有限公司 | Method and device for controlling temperature of centrifugal machine and centrifugal machine |
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