CN116394721A

CN116394721A - Control method and control device of parking air conditioner and parking air conditioner

Info

Publication number: CN116394721A
Application number: CN202310613621.6A
Authority: CN
Inventors: 吴胜; 王现林; 陈鹏宇; 梁国豪; 闫江朋; 池小思
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-07-07

Abstract

The application provides a control method and device of a parking air conditioner and the parking air conditioner. The method comprises the following steps: determining whether a difference between the current internal ambient temperature and the target set temperature is less than a first set temperature; controlling a compressor of the parking air conditioner to operate for a target duration at a first operating frequency under the condition that the difference value between the current internal environment temperature and the target set temperature is smaller than a first set temperature; under the condition that the difference value between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, the target operating frequency of the compressor is determined based on the magnitude relation between the current internal environment temperature and the second set temperature, and the compressor is controlled to operate for a target time length at the target operating frequency, so that the problems of complex wiring, occupied space and high cost of an external machine of the parking air conditioner caused by the arrangement of an external environment temperature sensing bulb and an exhaust temperature sensing bulb on the external machine of the parking air conditioner in the prior art are solved.

Description

Control method and control device of parking air conditioner and parking air conditioner

Technical Field

The present disclosure relates to the field of control of parking air conditioners, and in particular, to a control method and device for a parking air conditioner, a computer readable storage medium, and a parking air conditioner.

Background

With the rapid development of the logistics industry, in order to save the transportation cost, the truck driver usually takes the truck as home, which also makes the truck driver have a high demand for the environment in the truck. Truck drivers often install a set of park air conditioners on the vehicle. With the popularization of parking air conditioners, large air conditioner manufacturers compete with the market. Therefore, the miniaturized design and simplified design mode of the parking air conditioner are endless.

Meanwhile, in order to realize the accurate control of the running frequency of the air conditioner and the reliability of an air conditioning system on the premise of achieving the purposes of refrigeration and energy saving of the air conditioner, the corresponding temperature points are generally obtained based on an external environment temperature sensing bag and an exhaust temperature sensing bag arranged on an external air conditioner in the prior art, so that the running frequency of the air conditioner is accurately controlled according to the obtained corresponding temperature points.

However, the external environment temperature sensing bulb and the exhaust temperature sensing bulb are arranged on the air conditioner external unit, so that the wiring of the air conditioner external unit is complex, the space is occupied, the miniaturized design of the air conditioner external unit is not utilized, and meanwhile, the cost of the air conditioner external unit is high.

Disclosure of Invention

The main object of the present application is to provide a control method, a control device, a computer readable storage medium and a parking air conditioner, so as to at least solve the problems of complex wiring, relatively occupied space and relatively high cost of an external machine of the parking air conditioner caused by setting an external environment temperature sensing bulb and an exhaust temperature sensing bulb on the external machine of the parking air conditioner in the prior art.

In order to achieve the above object, according to one aspect of the present application, there is provided a control method of a parking air conditioner, comprising: determining whether the difference value between the current internal environment temperature and a target set temperature is smaller than a first set temperature, wherein the current internal environment temperature is the temperature of a space where an internal unit of the parking air conditioner is located, and the target set temperature is the set temperature of the parking air conditioner; controlling a compressor of the parking air conditioner to operate for a target period of time at a first operating frequency under the condition that the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature; and under the condition that the difference value between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, determining the target operating frequency of the compressor based on the magnitude relation between the current internal environment temperature and the second set temperature, and controlling the compressor to operate at the target operating frequency for the target duration, wherein the first set temperature is smaller than the second set temperature.

Optionally, determining a target operating frequency of the compressor based on a magnitude relation between the current internal environment temperature and a second set temperature, and controlling the compressor to operate at the target operating frequency for the target duration includes: determining the operating frequency of the compressor as a first target operating frequency under the condition that the current internal environment temperature is smaller than the second set temperature, and controlling the compressor to operate at the first target operating frequency for the target duration; and under the condition that the current internal environment temperature is greater than or equal to the second set temperature, determining the operating frequency of the compressor as a second target operating frequency, and controlling the compressor to operate at the second target operating frequency for the target duration, wherein the second target operating frequency is greater than the first target operating frequency, and the first target operating frequency is greater than the first operating frequency.

Optionally, after controlling the compressor of the parking air conditioner to operate at the first operating frequency for a target period of time, the control method further includes: controlling the compressor to stop working under the condition that a first target condition is met, wherein the first target condition comprises at least one of the following: the current internal environment temperature is smaller than the difference value between the target set temperature and the third set temperature, and the current phase current of the compressor is larger than or equal to the first phase current upper limit value.

Optionally, after determining that the operating frequency of the compressor is a first target operating frequency and controlling the compressor to operate at the first target operating frequency for the target period of time when the current internal environment temperature is less than the second set temperature, the control method further includes: continuing to control the compressor to operate at the first operating frequency for the target period of time if a second target condition is satisfied, the second target condition including at least one of: the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, and the current phase current of the compressor is larger than or equal to a second phase current upper limit value, wherein the second phase current upper limit value is larger than a first phase current upper limit value.

Optionally, in the case that the current internal environment temperature is greater than or equal to the second set temperature, determining the operating frequency of the compressor to be a second target operating frequency, and controlling the compressor to operate at the second target operating frequency for the target period of time, the control method further includes: determining whether a difference between the current internal ambient temperature and the target set temperature is less than the first set temperature; continuously controlling the compressor to run for the target duration at the first running frequency under the condition that the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature; and determining the operating frequency of the compressor based on the magnitude relation between the current phase current of the compressor and a third phase current upper limit value under the condition that the difference value between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, wherein the third phase current upper limit value is greater than a second phase current upper limit value.

Optionally, determining the operating frequency of the compressor based on the magnitude relation between the present phase current and the third phase current upper limit value of the compressor includes: determining the operation frequency of the compressor based on the magnitude relation between the current phase current and the phase current shutdown value of the compressor under the condition that the current phase current of the compressor is greater than or equal to the third phase current upper limit value; and under the condition that the current phase current of the compressor is smaller than the upper limit value of the third phase current, determining the running frequency of the compressor as the second target running frequency, and controlling the compressor to run for the target duration at the second target running frequency.

Optionally, determining the operating frequency of the compressor based on the magnitude relation between the present phase current and the phase current shutdown value of the compressor includes: determining the operation frequency of the compressor to be a second operation frequency under the condition that the current phase current of the compressor is larger than or equal to the phase current stop upper limit value, and controlling the compressor to operate at the second operation frequency, wherein the second operation frequency is smaller than the first operation frequency; and under the condition that the current phase current of the compressor is smaller than the phase current shutdown value, determining the running frequency of the compressor as the first target running frequency, and controlling the compressor to run for the target duration at the first target running frequency.

According to another aspect of the present application, there is provided a control device of a parking air conditioner, including: a first determining unit, configured to determine whether a difference between a current internal environment temperature and a target set temperature is less than a first set temperature, where the current internal environment temperature is a temperature of a space where an internal unit of the parking air conditioner is located, and the target set temperature is a set temperature of the parking air conditioner; the first control unit is used for controlling the compressor of the parking air conditioner to operate for a target duration at a first operating frequency under the condition that the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature; and the second control unit is used for determining the target operating frequency of the compressor based on the magnitude relation between the current internal environment temperature and a second set temperature under the condition that the difference value between the current internal environment temperature and the target set temperature is larger than or equal to the first set temperature, and controlling the compressor to operate at the target operating frequency for the target duration, wherein the first set temperature is smaller than the second set temperature.

According to still another aspect of the present application, there is provided a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the apparatus where the computer readable storage medium is controlled to execute any one of the control methods of the parking air conditioner.

According to still another aspect of the present application, there is provided a parking air conditioner, including: and the control device is used for executing any one of the control methods of the parking air conditioner.

By applying the technical scheme, whether the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature or not is determined, namely, the magnitude relation between the difference value between the current internal environment temperature and the temperature of the air conditioner set by a driver and the first set temperature is determined; when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely the internal environment temperature approaches the temperature of the parking air conditioner set by the driver, the driver is indicated that great cold is not needed to maintain the comfort in the cab at the moment, and the compressor of the parking air conditioner can be controlled to run for a target period at a first running frequency; under the condition that the difference value between the current internal environment temperature and the target set temperature is larger than or equal to the first set temperature, namely, the difference value between the internal environment temperature of the cab and the temperature of the parking air conditioner set by a driver is larger, the driver is required to be more cold to maintain comfort, and the target operating frequency of the compressor can be determined through the magnitude relation between the previous internal environment temperature and the second set temperature, so that the operating frequency of the parking air conditioner is accurately controlled, and the reliability of an air conditioning system is effectively ensured on the premise of achieving the purposes of refrigeration and energy conservation. Meanwhile, the control method of the parking air conditioner determines the operation frequency of the compressor of the parking air conditioner based on the current internal environment temperature, and the operation frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, and the wiring of the external machine is ensured to be simpler, the cost is saved and the external machine is simplified.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 illustrates a hardware block diagram of a mobile terminal performing a control method of a parking air conditioner according to an embodiment of the present application;

fig. 2 shows a flowchart of a control method of a parking air conditioner according to an embodiment of the present application;

fig. 3 is a flowchart illustrating another control method of a parking air conditioner according to an embodiment of the present application;

fig. 4 shows a schematic structural diagram of a control device of a parking air conditioner according to an embodiment of the present application.

Wherein the above figures include the following reference numerals:

102. a processor; 104. a memory; 106. a transmission device; 108. and an input/output device.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As described in the background art, in the prior art, by setting the external environment temperature sensing bulb and the exhaust temperature sensing bulb on the external machine of the parking air conditioner, the external machine of the parking air conditioner is complicated in wiring, occupies a large space and has high cost, so as to solve the problems, and the embodiment of the application provides a control method, a control device, a computer readable storage medium and the parking air conditioner.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The method embodiments provided in the embodiments of the present application may be performed in a mobile terminal, a computer terminal or similar computing device. Taking the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of the mobile terminal according to a control method of a parking air conditioner according to an embodiment of the present invention. As shown in fig. 1, a mobile terminal may include one or more (only one is shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 for communication functions and an input-output device 108. It will be appreciated by those skilled in the art that the structure shown in fig. 1 is merely illustrative and not limiting of the structure of the mobile terminal described above. For example, the mobile terminal may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1.

The memory 104 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to a control method of a parking air conditioner in an embodiment of the present invention, and the processor 102 executes the computer program stored in the memory 104 to perform various functional applications and data processing, that is, implement the above-mentioned method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located relative to the processor 102, which may be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, simply referred to as NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is configured to communicate with the internet wirelessly.

In the present embodiment, a control method of a parking air conditioner operating on a mobile terminal, a computer terminal or the like is provided, and it is to be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown or described herein.

Fig. 2 is a flowchart of a control method of a parking air conditioner according to an embodiment of the present application. As shown in fig. 2, the control method includes the steps of:

step S201, determining whether the difference between the current internal environment temperature and the target set temperature is smaller than a first set temperature, wherein the current internal environment temperature is the temperature of the space where the internal unit of the parking air conditioner is located, and the target set temperature is the set temperature of the parking air conditioner;

specifically, the internal ambient temperature is the temperature of the space where the internal machine of the parking air conditioner is located, and may also be referred to as the current temperature of the cab where the driver is located. In the practical application process, any feasible mode in the prior art can be adopted to obtain the temperature of the space where the internal unit of the parking air conditioner is located, and in the application, the method for obtaining the internal environment temperature is not limited. In a specific embodiment, the internal ambient temperature may be obtained by a bulb on the internal machine of the park air conditioner.

In the actual application process, the target set temperature is the set temperature of the parking air conditioner, namely the temperature set by the driver and intended to be reached by the cab.

In addition, the magnitude of the first set temperature is not limited, and the first set temperature can be flexibly adjusted according to the model, the power and the like of the parking air conditioner.

Step S202, controlling the compressor of the parking air conditioner to operate for a target duration at a first operating frequency under the condition that the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely, T inner ring-T set is smaller than T1;

for the variable-frequency parking air conditioner, the operating frequency points of the variable-frequency parking air conditioner are fewer in order to be staggered with the fixed frequency of the pipeline, and 3-4 operating frequency points of the common variable-frequency parking air conditioner are set. In the case where the operation frequency points of the variable frequency parking air conditioner are 3, the 3 operation frequency points may be generally a low load operation frequency, a medium load operation frequency, and a high load operation frequency. Wherein the first operating frequency may also be generally referred to as a low load operating frequency. The first target operating frequency referred to hereinafter may be referred to as a medium load operating frequency, and the second target operating frequency may be referred to as a high load operating frequency.

For the step S202, when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (T inner loop-T set < T1), it indicates that the difference between the current internal environment temperature and the target set temperature is smaller, that is, the internal environment temperature has approached the temperature of the parking air conditioner set by the driver, and it indicates that the driver does not need great cooling capacity to maintain the comfort in the cab at this time, so that the compressor of the parking air conditioner can be controlled to operate at the first operating frequency for the target duration when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature.

In the actual application process, when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature and the current internal environment temperature is smaller than the second set temperature (T inner ring < T refrigerating indoor temperature), the compressor is also controlled to operate at the first operation frequency for the target duration. The reason is that: and under the condition that the current internal environment temperature is smaller than the second set temperature, the load in the cab is lighter, the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature, the difference value between the current internal environment temperature and the environment temperature of the parking air conditioner set by the driver is smaller, and the compressor can be controlled to operate for a target duration at the first operation frequency.

In addition, when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (T inner ring-T set < T1), and the current internal environment temperature is equal to or greater than the second set temperature (T inner ring is greater than or equal to T refrigerating indoor temperature), the compressor can be controlled to operate at the first operation frequency for the target duration. The reason is that: when the current internal environment temperature is greater than or equal to the second set temperature, the load in the cab is indicated to be heavy, but the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, the difference between the current internal environment temperature and the environment temperature of the parking air conditioner set by the driver is indicated to be smaller, and therefore the compressor can be controlled to operate for a target period at the first operation frequency.

Step S203, when the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, determining a target operating frequency of the compressor based on a magnitude relation between the current internal environment temperature and a second set temperature, and controlling the compressor to operate at the target operating frequency for the target period of time, wherein the first set temperature is less than the second set temperature.

In the actual application process, the second set temperature (T cooling indoor temperature) may be a cooling standard temperature set by the parking air conditioner when leaving the factory. In the present application, the magnitude of the second set temperature is not limited, and may be flexibly adjusted according to practical application situations.

For the target duration in step S202 and step S203, the size of the target duration is not limited, and the model of the parking air conditioner and the like can be flexibly adjusted.

Specifically, when the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, it indicates that the difference between the internal environment temperature of the cab and the target set temperature is greater, that is, the difference between the internal environment temperature of the cab and the temperature of the parking air conditioner set by the driver is greater, and it indicates that the driver also desires greater cooling capacity to maintain comfort at this time. Thus, the operating load in the cab can be determined by the magnitude relation of the previous internal ambient temperature and the second set temperature. And then, according to the condition of the operation load, the target operation frequency of the compressor is determined, so that the parking air conditioner is accurately controlled, and resources can be saved.

Through the embodiment, whether the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature or not is determined, namely, the magnitude relation between the difference between the current internal environment temperature and the temperature of the air conditioner set by a driver and the first set temperature is determined; when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely the internal environment temperature approaches the temperature of the parking air conditioner set by the driver, the driver is indicated that great cold is not needed to maintain the comfort in the cab at the moment, and the compressor of the parking air conditioner can be controlled to run for a target period at a first running frequency; under the condition that the difference value between the current internal environment temperature and the target set temperature is larger than or equal to the first set temperature, namely, the difference value between the internal environment temperature of the cab and the temperature of the parking air conditioner set by a driver is larger, the driver is required to be more cold to maintain comfort, and the target operating frequency of the compressor can be determined through the magnitude relation between the previous internal environment temperature and the second set temperature, so that the operating frequency of the parking air conditioner is accurately controlled, and the reliability of an air conditioning system is effectively ensured on the premise of achieving the purposes of refrigeration and energy conservation. Meanwhile, the control method of the parking air conditioner determines the operation frequency of the compressor of the parking air conditioner based on the current internal environment temperature, and the operation frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, and the wiring of the external machine is ensured to be simpler, the cost is saved and the external machine is simplified.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.

In a specific implementation process, the step S203 may be implemented through the step S2031 and the step S2032. Step S2031, where the current internal environment temperature is less than the second set temperature (tanlc < temperature in the T cooling room), is determined to be the first target operating frequency, and the compressor is controlled to operate at the first target operating frequency for the target period, where the difference between the internal environment temperature and the target set temperature is less than or equal to the first set temperature, that is, the difference between the current internal environment temperature and the temperature of the parking air conditioner set by the driver is still a certain difference, so that the compressor can be controlled to operate at the first target operating frequency (medium load operating frequency); step S2032, determining the operating frequency of the compressor to be the second target operating frequency and controlling the compressor to operate at the second target operating frequency for the target duration when the current internal environment temperature is greater than or equal to the second set temperature (temperature in the T inner loop is greater than or equal to the T cooling chamber), where the difference between the internal environment temperature and the target set temperature is greater than or equal to the first set temperature, that is, the current internal environment temperature and the temperature of the parking air conditioner set by the driver are also a certain difference, so that the second target operating frequency (heavy load operating frequency) of the compressor can be controlled to operate. Wherein the second target operating frequency is greater than the first target operating frequency, and the first target operating frequency is greater than the first operating frequency.

In order to further control the operation frequency of the parking air conditioner more accurately, further ensure the reliability of the air conditioning system and further ensure that the parking air conditioner is more energy-saving as a whole, the control method of the present application further includes step S204, after controlling the compressor of the parking air conditioner to operate at the first operation frequency for a target period of time, controlling the compressor to stop working if a first target condition is satisfied, where the first target condition includes at least one of the following: the current internal environment temperature is smaller than the difference value between the target set temperature and the third set temperature (Tinner ring < Tset-TCompensation), and the current phase current of the compressor is larger than or equal to a first phase current upper limit value (compressor phase current is larger than or equal to an I low-frequency phase current upper limit value).

Of course, in the case where the first target condition is not satisfied, the compressor of the parking air conditioner is controlled to continue to operate at the first operating frequency for a target period of time. After continuing to operate at the first operating frequency for the target period of time, the loop again determines whether the first target condition is satisfied.

Specifically, in the actual application process, the third set temperature (tcompensation) may be a smaller temperature value, so that the use experience of the driver may be further ensured to be better. In addition, the third set temperature (tcompensation) may be less than or equal to the first set temperature (T1).

In some embodiments, the control method further includes step S205, when the current internal environment temperature is less than the second set temperature, determining the operation frequency of the compressor to be a first target operation frequency, and after controlling the compressor to operate at the first target operation frequency for the target period of time, continuing to control the compressor to operate at the first operation frequency for the target period of time if a second target condition is satisfied, where the second target condition includes at least one of: the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (T inner ring-T set is smaller than T1), and the current phase current of the compressor is larger than or equal to the second phase current upper limit value (the compressor phase current is larger than or equal to the intermediate frequency phase current upper limit value of I), so that the overall energy conservation of the parking air conditioner is further ensured. Wherein the second phase current upper limit is greater than the first phase current upper limit.

Of course, if the second target condition is not met, the compressor of the parking air conditioner is continuously controlled to continuously operate at the first target operating frequency (medium load operating frequency) for the target duration, so that the compressor can continuously operate at a higher speed, the temperature in the cab is rapidly reduced, and better use experience is brought to a driver.

In the practical application process, in order to more precisely control the operation frequency of the compressor of the parking air conditioner, the control method further includes step S206, step S207 and step S208. Step S206, when the current internal environment temperature is greater than or equal to the second set temperature, determining that the operating frequency of the compressor is a second target operating frequency, controlling the compressor to operate at the second target operating frequency for the target period of time, and determining whether the difference between the current internal environment temperature and the target set temperature is less than the first set temperature; step S207, when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (Tinner ring-Tset < T1), the difference between the current internal environment temperature in the cab and the temperature of the parking air conditioner set by the driver is gradually reduced, so that the compressor can be continuously controlled to operate at the first operation frequency for the target duration, and the overall energy saving of the parking air conditioner is further ensured on the aspect of providing better use experience for the driver; step S208, when the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature (Tinner ring-Tset is greater than or equal to T1), determining the operation frequency of the compressor based on the magnitude relation between the current phase current of the compressor and the third phase current upper limit value (I high-frequency phase current upper limit value), thereby further ensuring that the determined operation frequency of the compressor is more reasonable. Wherein the third phase current upper limit is greater than the second phase current upper limit.

In order to further ensure that the determined operation frequency of the compressor is reasonable and further ensure that the parking air conditioner is energy-saving as a whole, in some specific implementation processes, the step S208 may be further implemented by the following steps S2081 and S2082. Step S2081, determining the operating frequency of the compressor based on the magnitude relation between the current phase current and the phase current shutdown value (I-phase current shutdown value) of the compressor when the current phase current of the compressor is greater than or equal to the third phase current upper limit value (compressor phase current is greater than or equal to I-high frequency phase current upper limit value); and step S2082, when the current phase current of the compressor is smaller than the third phase current upper limit value (compressor phase current < I high-frequency phase current upper limit value), determining the operation frequency of the compressor as the second target operation frequency, and controlling the compressor to operate at the second target operation frequency for the target time period.

In an actual application process, the step S2081 may be implemented by determining the operating frequency of the compressor to be a second operating frequency and controlling the compressor to operate at the second operating frequency, where the current phase current of the compressor is greater than or equal to the phase current shutdown value (the compressor phase current is greater than or equal to the I-phase current shutdown value), and the second operating frequency is smaller than the first operating frequency; and under the condition that the current phase current of the compressor is smaller than the phase current shutdown value (the phase current of the compressor is smaller than the phase current shutdown value of I), determining the running frequency of the compressor as the first target running frequency, and controlling the compressor to run for the target duration at the first target running frequency, so that the compressor can run at a higher running frequency, and the internal environment temperature in the cab can reach the temperature set by a driver more quickly.

In a specific embodiment of the present application, the second operating frequency may be 0. In the case where the above second operation frequency is 0, i.e., the compressor stops operating. That is, in the case where the current phase current of the compressor is greater than or equal to the above-mentioned phase current shutdown value, the shutdown process is performed on the compressor.

In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the control method of the parking air conditioner of the present application will be described in detail below with reference to specific embodiments.

The embodiment relates to a specific control method of a parking air conditioner, as shown in fig. 3, including the following steps:

step S1: the truck is started, the engine is started and power is supplied to the parking air conditioner. And the parking air conditioner operates. The magnitude relation between the internal environment temperature (T inner ring, i.e. the current environment temperature in the cab, i.e. the current internal environment temperature) and the second set temperature (T refrigerating indoor temperature) is determined, i.e. whether the T inner ring is smaller than the T refrigerating indoor temperature is met or not is determined, and the load demand of the cab is determined, so that the operating frequency of the compressor of the parking air conditioner is determined, i.e. the operating frequency of the parking air conditioning system is determined.

Step S2: when the temperature in the T-shaped inner ring < T refrigerating chamber is satisfied, the load in the cab is lighter. Therefore, whether the T inner ring-T setting < T1 is met or not can be further determined through the magnitude relation between the difference value of the current inner environment temperature (T inner ring) and the target set temperature (T set) and the first set temperature (T1), so that the operation frequency of the compressor of the parking air conditioner is determined.

Step S21: in the case of a T inner loop-T setting < T1 (first set temperature), this indicates that the internal ambient temperature of the cab is already relatively close to the temperature of the driver-set parking air conditioner. By this it is achieved that the driver does not need a great amount of cold already to maintain the comfort of the cab. In this case, therefore, it is possible to determine the operating frequency of the compressor of the parking air conditioner as the first operating frequency (low load operating frequency) and control the compressor to operate at the first operating frequency (low load operating frequency) for a time period t.

Step S22: after controlling the compressor to operate at a first operating frequency (low load operating frequency) for a period of time T, determining whether a first target condition is satisfied, i.e., determining whether a T inner loop < T set-T compensation (third set temperature) is satisfied, or whether the compressor phase current is greater than or equal to an I low frequency phase current upper limit. In the case where the first target condition is satisfied, a shutdown process is performed on the compressor, i.e., the compressor is controlled to stop operating. The T inner ring is less than T set-T compensation, and is used for determining whether the current internal environment temperature in the cab reaches a corresponding temperature point or not, and the upper limit of the compressor phase current is more than or equal to the upper limit of the I low-frequency phase current so as to ensure the system reliability of the air conditioning system under the low-frequency operation condition. If the first target condition is not met, controlling the compressor of the parking air conditioner to continue to operate at the first operating frequency (low-load operating frequency) for a target period of time (t period of time).

Step S23: after controlling the compressor of the parking air conditioner to continue to operate at the first operating frequency for a target period of time (t period of time), step S22 may be continuously performed.

Step S24: when the T inner ring-T setting is not satisfied and is smaller than T1, namely, the T inner ring-T setting is larger than or equal to T1, the temperature difference between the internal environment temperature of the cab and the temperature of the parking air conditioner set by the driver is far. In this case, the driver still desires a large amount of cooling to maintain comfort, and thus the cab needs to be cooled down quickly. Accordingly, the compressor of the parking air conditioner can be controlled to operate at the first target operating frequency (medium load operating frequency) for the target period of time (t period of time).

Step S25: after controlling the compressor of the parking air conditioner to operate at a first target operating frequency (medium load operating frequency) for a target period of time (T period of time), determining whether a second target condition is satisfied, namely determining whether a T inner loop-T setting < T1 is satisfied or whether a compressor phase current is greater than or equal to an I medium frequency phase current upper limit value is satisfied.

Step S26: and if the second target condition is met, continuing to control the compressor to operate at the first operating frequency for a target duration, namely continuing to execute the logic from the step S21 to the step S23. If the second target condition is not satisfied, the compressor of the parking air conditioner is continuously controlled to operate for a target period of time (t period of time) at the first target operating frequency (intermediate load operating frequency). After controlling the compressor of the parking air conditioner again to operate at the first target operating frequency (medium load operating frequency) for a target period of time (t period of time), step S25 may be continuously performed.

Step S3: when the temperature in the T inner ring < T refrigerating chamber is not satisfied, the condition that the load of the cab is heavy at the moment is indicated, so that the operation frequency of the compressor of the parking air conditioner can be further determined by the magnitude relation between the difference value of the current internal environment temperature (T inner ring) and the target set temperature (T set) and the first set temperature (T1), namely, by determining that the T inner ring-T set is less than T1.

Step S31: when the T inner ring-T setting < T1 is satisfied, the condition that the load of the cab is heavy at this time is indicated, but the internal environment temperature of the cab is close to the temperature of the parking air conditioner set by a driver. It is thus obtained that the driver does not need a great amount of cold to maintain the comfort of the cab. In this case, the logic of steps S21 to S23 may be continuously executed in a loop.

Step S32: when the T inner ring-T setting is not satisfied and is smaller than T1, the condition that the load in the cab is heavy at the moment is indicated, and the temperature of the internal environment of the cab is far different from the temperature of the parking air conditioner set by a driver at the moment. So the driver needs great cold to maintain indoor comfort and needs rapid cooling. Accordingly, the compressor of the parking air conditioner can be controlled to operate at the second target operating frequency (high load operating frequency) for the target period of time (t period of time).

Step S33: when the compressor of the parking air conditioner is controlled to operate at a second target operating frequency (high load operating frequency) for a target time period (T time period), whether the T inner loop-T setting < T1 is satisfied is determined. If the T inner loop-T setting < T1 is satisfied, the logic of steps S21 to S23 is continued to be executed in a loop. And continuously determining whether the upper limit value of the high-frequency phase current of the compressor phase current which is more than or equal to I is met under the condition that the T inner ring-T setting is less than T1.

Step S34: and under the condition that the upper limit value of the phase current of the compressor is not more than or equal to the upper limit value of the phase current of the I high frequency, determining the running frequency of the compressor as a second target running frequency, and controlling the compressor to run for a target duration at the second target running frequency. And under the condition that the upper limit value of the high-frequency phase current of the compressor phase current is more than or equal to I, continuously determining whether the compressor phase current is more than or equal to I and the current shutdown value is met.

Step S35: and under the condition that the phase current of the compressor is more than or equal to the phase current shutdown value of the I phase, determining the operation frequency of the compressor as a second operation frequency, and controlling the compressor to operate at the second operation frequency, namely, performing shutdown treatment on the compressor, namely, controlling the compressor to stop working. If the compressor phase current is not equal to or greater than the I phase current shutdown value, the logic of steps S24 to S26 is continued until the logic of steps S21 to S23 is cyclically executed, or the shutdown process is performed on the compressor.

The embodiment of the application also provides a control device of the parking air conditioner, and it is to be noted that the control device of the parking air conditioner of the embodiment of the application can be used for executing the control method for the parking air conditioner. The device is used for realizing the above embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

The following describes a control device of a parking air conditioner provided in an embodiment of the present application.

Fig. 4 is a schematic structural view of a control device of a parking air conditioner according to an embodiment of the present application. As shown in fig. 4, the control device includes:

a first determining unit 10 configured to determine whether a difference between a current internal environment temperature, which is a temperature of a space where an internal unit of the parking air conditioner is located, and a target set temperature, which is a set temperature of the parking air conditioner, is less than a first set temperature;

A first control unit 20 for controlling the compressor of the parking air conditioner to operate at a first operation frequency for a target period of time in case that a difference between the current internal ambient temperature and the target set temperature is less than the first set temperature;

When the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (T inner ring-T set < T1), the difference between the current internal environment temperature and the target set temperature is smaller, namely, the internal environment temperature approaches to the temperature of the parking air conditioner set by the driver, and the driver does not need great cooling capacity to maintain the comfort in the cab, so that the compressor of the parking air conditioner can be controlled to operate for a target duration at the first operating frequency under the condition that the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature.

And a second control unit 30 configured to determine a target operating frequency of the compressor based on a magnitude relation between the current internal environment temperature and a second set temperature, and control the compressor to operate at the target operating frequency for the target period of time, when a difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, wherein the first set temperature is less than the second set temperature.

For the target duration, the size of the target duration is not limited, and the model of the parking air conditioner and the like can be flexibly adjusted.

Through the embodiment, the first determining unit is configured to determine whether a difference between the current internal environment temperature and the target set temperature is smaller than a first set temperature, that is, determine a magnitude relation between the difference between the current internal environment temperature and the temperature of the air conditioner set by the driver and the first set temperature; the first control unit is used for indicating that the driver does not need great cold to maintain the comfort in the cab at the moment when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely the internal environment temperature approaches the temperature of the parking air conditioner set by the driver, and controlling the compressor of the parking air conditioner to operate for a target period at a first operation frequency; the second control unit is used for determining the target operating frequency of the compressor through the magnitude relation between the previous internal environment temperature and the second set temperature under the condition that the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, namely, the difference between the internal environment temperature of the cab and the temperature of the parking air conditioner set by the driver is greater, so that the driver is required to maintain comfortableness, and the target operating frequency of the compressor can be determined, thereby realizing more accurate control of the operating frequency of the parking air conditioner, and effectively ensuring the reliability of an air conditioning system on the premise of achieving the purposes of refrigeration and energy conservation. Meanwhile, the control device of the parking air conditioner is based on the current internal environment temperature, the running frequency of the compressor of the parking air conditioner is determined, and the running frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, the wiring of the external machine is ensured to be simpler, the cost is saved, and the external machine is simplified.

In a specific implementation process, the second control unit includes a first determining module and a second determining module, where the first determining module is configured to determine an operating frequency of the compressor as a first target operating frequency when the current internal environment temperature is less than the second set temperature (T-ring < T-cooling indoor temperature), and control the compressor to operate at the first target operating frequency for the target duration, where the load of the cab is indicated to be lighter, and the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, that is, the current internal environment temperature and the temperature of the parking air conditioner set by the driver are also indicated to have a certain difference, so that the compressor can be controlled to operate at the first target operating frequency (medium load operating frequency); the second determining module is configured to determine the operating frequency of the compressor to be a second target operating frequency and control the compressor to operate at the second target operating frequency for the target duration when the current internal environment temperature is greater than or equal to the second set temperature (temperature in the T inner loop is greater than or equal to the T cooling chamber), where the difference between the internal environment temperature and the target set temperature is greater than or equal to the first set temperature, that is, the current internal environment temperature and the temperature of the parking air conditioner set by the driver are also a certain difference, so that the second target operating frequency (heavy load operating frequency) of the compressor can be controlled to operate. Wherein the second target operating frequency is greater than the first target operating frequency, and the first target operating frequency is greater than the first operating frequency.

In order to further control the operation frequency of the parking air conditioner more accurately, further ensure the reliability of the air conditioning system and further ensure that the whole of the parking air conditioner is more energy-saving, the control device of the application further comprises a third control unit, which is used for controlling the compressor of the parking air conditioner to stop working under the condition that a first target condition is met after the compressor is controlled to operate for a target period at a first operation frequency, wherein the first target condition comprises at least one of the following: the current internal environment temperature is smaller than the difference value between the target set temperature and the third set temperature (Tinner ring < Tset-TCompensation), and the current phase current of the compressor is larger than or equal to a first phase current upper limit value (compressor phase current is larger than or equal to an I low-frequency phase current upper limit value).

In some embodiments, the control device further includes a fourth control unit configured to determine, when the current internal ambient temperature is less than the second set temperature, an operation frequency of the compressor to be a first target operation frequency, and control the compressor to operate at the first target operation frequency for the target period of time, and then, when a second target condition is satisfied, continue to control the compressor to operate at the first operation frequency for the target period of time, where the second target condition includes at least one of: the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (T inner ring-T set is smaller than T1), and the current phase current of the compressor is larger than or equal to the second phase current upper limit value (the compressor phase current is larger than or equal to the intermediate frequency phase current upper limit value of I), so that the overall energy conservation of the parking air conditioner is further ensured. Wherein the second phase current upper limit is greater than the first phase current upper limit.

In an actual application process, in order to more precisely control the operation frequency of the compressor of the parking air conditioner, the control device further comprises a second determining unit, a fifth control unit and a third determining unit, wherein the second determining unit is used for determining that the operation frequency of the compressor is a second target operation frequency when the current internal environment temperature is greater than or equal to the second set temperature, and determining whether the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature after controlling the compressor to operate at the second target operation frequency for the target duration; the fifth control unit is configured to indicate that, when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature (tsket-tset < T1), the difference between the current internal environment temperature in the cab and the temperature of the parking air conditioner set by the driver has become smaller gradually, so that the compressor can be continuously controlled to operate at the first operating frequency for the target duration, so that better use experience is provided for the driver, and overall energy saving of the parking air conditioner is further ensured; the third determining unit is configured to determine the operating frequency of the compressor based on the magnitude relation between the current phase current of the compressor and a third phase current upper limit value (I high-frequency phase current upper limit value) when the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature (T inner loop-T set is greater than or equal to T1), so that the determined operating frequency of the compressor is further ensured to be reasonable. Wherein the third phase current upper limit is greater than the second phase current upper limit.

In order to further ensure that the determined operation frequency of the compressor is reasonable and further ensure that the whole parking air conditioner is energy-saving, in some specific implementation processes, the third determining unit comprises a third determining module and a fourth determining module, wherein the third determining module is used for determining the operation frequency of the compressor based on the magnitude relation between the current phase current of the compressor and a phase current shutdown value (I-phase current shutdown value) when the current phase current of the compressor is greater than or equal to the third phase current upper limit value (the compressor phase current is greater than or equal to the I-high frequency phase current upper limit value); the fourth determining module is configured to determine an operating frequency of the compressor to be the second target operating frequency and control the compressor to operate at the second target operating frequency for the target time period when the current phase current of the compressor is less than the third phase current upper limit value (compressor phase current < I high frequency phase current upper limit value).

In an actual application process, the third determining module comprises a first determining submodule and a second determining submodule, wherein the first determining submodule is used for determining the operating frequency of the compressor to be a second operating frequency and controlling the compressor to operate at the second operating frequency when the current phase current of the compressor is greater than or equal to the phase current shutdown value (the phase current of the compressor is greater than or equal to the phase current shutdown value), and the second operating frequency is smaller than the first operating frequency; the second determining submodule is used for determining the operating frequency of the compressor to be the first target operating frequency and controlling the compressor to operate at the first target operating frequency for the target duration under the condition that the current phase current of the compressor is smaller than the phase current shutdown value (the compressor phase current is smaller than the phase current shutdown value), so that the compressor can operate at a higher operating frequency, and the internal environment temperature in the cab can reach the temperature set by a driver more quickly.

The control device of the parking air conditioner comprises a processor and a memory, wherein the first determining unit, the first control unit, the second control unit and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions. The modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.

The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The inner core can be provided with one or more, and the problems of complex wiring, relatively occupied space and relatively high cost of the outer machine of the parking air conditioner caused by arranging an external environment temperature sensing bulb and an exhaust temperature sensing bulb on the outer machine of the parking air conditioner in the prior art are solved by adjusting the inner core parameters.

The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.

The embodiment of the invention provides a computer readable storage medium, which comprises a stored program, wherein the program is used for controlling equipment where the computer readable storage medium is located to execute a control method of the parking air conditioner.

Specifically, the control method of the parking air conditioner includes:

An embodiment of the present invention provides an electronic device including a memory in which a computer program is stored, and a processor configured to execute the control method of a parking air conditioner by the computer program.

Specifically, the control method of the parking air conditioner includes:

In an exemplary embodiment of the present application, a parking air conditioner is also provided. The parking air conditioner comprises an air conditioner control device, wherein the control device is used for executing any one of the control methods of the parking air conditioner.

The parking air conditioner comprises a control device of the air conditioner, and the control device is used for executing any one of the control methods of the parking air conditioner. The control method is based on the current internal environment temperature, the operation frequency of the compressor of the parking air conditioner is determined, and the operation frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, and the wiring of the external machine is ensured to be simpler, the cost is saved and the external machine is simplified.

The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:

The device herein may be a server, PC, PAD, cell phone, etc.

The present application also provides a computer program product adapted to perform a program initialized with at least the following method steps when executed on a data processing device:

It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

1) In the control method, whether the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature or not is determined, namely, the magnitude relation between the difference value between the current internal environment temperature and the temperature of the air conditioner set by a driver and the first set temperature is determined; when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely the internal environment temperature approaches the temperature of the parking air conditioner set by the driver, the driver is indicated that great cold is not needed to maintain the comfort in the cab at the moment, and the compressor of the parking air conditioner can be controlled to run for a target period at a first running frequency; under the condition that the difference value between the current internal environment temperature and the target set temperature is larger than or equal to the first set temperature, namely, the difference value between the internal environment temperature of the cab and the temperature of the parking air conditioner set by a driver is larger, the driver is required to be more cold to maintain comfort, and the target operating frequency of the compressor can be determined through the magnitude relation between the previous internal environment temperature and the second set temperature, so that the operating frequency of the parking air conditioner is accurately controlled, and the reliability of an air conditioning system is effectively ensured on the premise of achieving the purposes of refrigeration and energy conservation. Meanwhile, the control method of the parking air conditioner determines the operation frequency of the compressor of the parking air conditioner based on the current internal environment temperature, and the operation frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, and the wiring of the external machine is ensured to be simpler, the cost is saved and the external machine is simplified.

2) In the control device of the present application, the first determining unit is configured to determine whether a difference between the current internal environment temperature and the target set temperature is smaller than a first set temperature, that is, determine a magnitude relation between the difference between the current internal environment temperature and the temperature of the air conditioner set by the driver and the first set temperature; the first control unit is used for indicating that the driver does not need great cold to maintain the comfort in the cab at the moment when the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, namely the internal environment temperature approaches the temperature of the parking air conditioner set by the driver, and controlling the compressor of the parking air conditioner to operate for a target period at a first operation frequency; the second control unit is used for determining the target operating frequency of the compressor through the magnitude relation between the previous internal environment temperature and the second set temperature under the condition that the difference between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, namely, the difference between the internal environment temperature of the cab and the temperature of the parking air conditioner set by the driver is greater, so that the driver is required to maintain comfortableness, and the target operating frequency of the compressor can be determined, thereby realizing more accurate control of the operating frequency of the parking air conditioner, and effectively ensuring the reliability of an air conditioning system on the premise of achieving the purposes of refrigeration and energy conservation. Meanwhile, the control device of the parking air conditioner is based on the current internal environment temperature, the running frequency of the compressor of the parking air conditioner is determined, and the running frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, the wiring of the external machine is ensured to be simpler, the cost is saved, and the external machine is simplified.

3) The parking air conditioner comprises a control device of the air conditioner, and the control device is used for executing any one of the control methods of the parking air conditioner. The control method is based on the current internal environment temperature, the operation frequency of the compressor of the parking air conditioner is determined, and the operation frequency of the compressor of the parking air conditioner is not determined through the external environment temperature and the exhaust temperature of the external machine, so that an external environment temperature sensing bulb and an exhaust temperature sensing bulb are not required to be arranged on the external machine, and the wiring of the external machine is ensured to be simpler, the cost is saved and the external machine is simplified.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A control method of a parking air conditioner, comprising:

determining whether the difference value between the current internal environment temperature and a target set temperature is smaller than a first set temperature, wherein the current internal environment temperature is the temperature of a space where an internal unit of the parking air conditioner is located, and the target set temperature is the set temperature of the parking air conditioner;

Controlling a compressor of the parking air conditioner to operate for a target period of time at a first operating frequency under the condition that the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature;

and under the condition that the difference value between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, determining the target operating frequency of the compressor based on the magnitude relation between the current internal environment temperature and the second set temperature, and controlling the compressor to operate at the target operating frequency for the target duration, wherein the first set temperature is smaller than the second set temperature.

2. The control method according to claim 1, wherein determining a target operating frequency of the compressor based on a magnitude relation of the current internal ambient temperature and a second set temperature, and controlling the compressor to operate at the target operating frequency for the target period of time, comprises:

determining the operating frequency of the compressor as a first target operating frequency under the condition that the current internal environment temperature is smaller than the second set temperature, and controlling the compressor to operate at the first target operating frequency for the target duration;

Determining the operating frequency of the compressor to be a second target operating frequency under the condition that the current internal environment temperature is greater than or equal to the second set temperature, controlling the compressor to operate at the second target operating frequency for the target duration,

wherein the second target operating frequency is greater than the first target operating frequency, and the first target operating frequency is greater than the first operating frequency.

3. The control method according to claim 1, characterized in that after controlling the compressor of the parking air conditioner to operate at a first operating frequency for a target period of time, the control method further comprises:

controlling the compressor to stop working under the condition that a first target condition is met, wherein the first target condition comprises at least one of the following: the current internal environment temperature is smaller than the difference value between the target set temperature and the third set temperature, and the current phase current of the compressor is larger than or equal to the first phase current upper limit value.

4. The control method according to claim 2, wherein, in the case where the current internal environment temperature is less than the second set temperature, after determining the operation frequency of the compressor as a first target operation frequency and controlling the compressor to operate at the first target operation frequency for the target period of time, the control method further comprises:

Continuing to control the compressor to operate at the first operating frequency for the target period of time if a second target condition is satisfied, the second target condition including at least one of: the difference between the current internal environment temperature and the target set temperature is smaller than the first set temperature, and the current phase current of the compressor is larger than or equal to a second phase current upper limit value, wherein the second phase current upper limit value is larger than a first phase current upper limit value.

5. The control method according to claim 2, wherein, in the case where the current internal environment temperature is greater than or equal to the second set temperature, after determining the operating frequency of the compressor to be a second target operating frequency and controlling the compressor to operate at the second target operating frequency for the target period of time, the control method further comprises:

determining whether a difference between the current internal ambient temperature and the target set temperature is less than the first set temperature;

continuously controlling the compressor to run for the target duration at the first running frequency under the condition that the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature;

And determining the operating frequency of the compressor based on the magnitude relation between the current phase current of the compressor and a third phase current upper limit value under the condition that the difference value between the current internal environment temperature and the target set temperature is greater than or equal to the first set temperature, wherein the third phase current upper limit value is greater than a second phase current upper limit value.

6. The control method according to claim 5, wherein determining the operating frequency of the compressor based on the magnitude relation of the present phase current of the compressor and a third phase current upper limit value includes:

determining the operation frequency of the compressor based on the magnitude relation between the current phase current and the phase current shutdown value of the compressor under the condition that the current phase current of the compressor is greater than or equal to the third phase current upper limit value;

and under the condition that the current phase current of the compressor is smaller than the upper limit value of the third phase current, determining the running frequency of the compressor as the second target running frequency, and controlling the compressor to run for the target duration at the second target running frequency.

7. The control method of claim 6, wherein determining the operating frequency of the compressor based on the magnitude relationship of the present phase current of the compressor and the phase current shutdown value comprises:

Determining the operation frequency of the compressor to be a second operation frequency under the condition that the current phase current of the compressor is larger than or equal to the phase current stop upper limit value, and controlling the compressor to operate at the second operation frequency, wherein the second operation frequency is smaller than the first operation frequency;

and under the condition that the current phase current of the compressor is smaller than the phase current shutdown value, determining the running frequency of the compressor as the first target running frequency, and controlling the compressor to run for the target duration at the first target running frequency.

8. A control device of a parking air conditioner, comprising:

a first determining unit, configured to determine whether a difference between a current internal environment temperature and a target set temperature is less than a first set temperature, where the current internal environment temperature is a temperature of a space where an internal unit of the parking air conditioner is located, and the target set temperature is a set temperature of the parking air conditioner;

the first control unit is used for controlling the compressor of the parking air conditioner to operate for a target duration at a first operating frequency under the condition that the difference value between the current internal environment temperature and the target set temperature is smaller than the first set temperature;

And the second control unit is used for determining the target operating frequency of the compressor based on the magnitude relation between the current internal environment temperature and a second set temperature under the condition that the difference value between the current internal environment temperature and the target set temperature is larger than or equal to the first set temperature, and controlling the compressor to operate at the target operating frequency for the target duration, wherein the first set temperature is smaller than the second set temperature.

9. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to execute the control method of the parking air conditioner according to any one of claims 1 to 7.

10. A parking air conditioner, comprising: control apparatus of an air conditioner for performing the control method of a parking air conditioner according to any one of claims 1 to 7.