CN117621773A - Vehicle-mounted air conditioner control method and device, electronic equipment and readable medium - Google Patents
Vehicle-mounted air conditioner control method and device, electronic equipment and readable medium Download PDFInfo
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- CN117621773A CN117621773A CN202410030441.XA CN202410030441A CN117621773A CN 117621773 A CN117621773 A CN 117621773A CN 202410030441 A CN202410030441 A CN 202410030441A CN 117621773 A CN117621773 A CN 117621773A
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- 238000004146 energy storage Methods 0.000 claims abstract description 310
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- 238000010438 heat treatment Methods 0.000 claims description 35
- 238000005057 refrigeration Methods 0.000 claims description 20
- 238000013507 mapping Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 230000001276 controlling effect Effects 0.000 description 29
- 238000005338 heat storage Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 22
- 238000001816 cooling Methods 0.000 description 19
- 238000004378 air conditioning Methods 0.000 description 15
- 239000003507 refrigerant Substances 0.000 description 15
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- 238000004364 calculation method Methods 0.000 description 10
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- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 4
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- 239000012782 phase change material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
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- 238000009833 condensation Methods 0.000 description 1
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application provides a vehicle-mounted air conditioner control method, a vehicle-mounted air conditioner control device, electronic equipment and a readable medium. The method comprises the following steps: acquiring the evaporation target temperature of an evaporator of the air conditioner and the energy storage medium temperature of an energy storage medium in an energy storage device of the air conditioner, wherein the energy storage medium is used for transferring energy among a compressor, the evaporator and the energy storage device of the air conditioner; determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature. The method can improve the running efficiency of the compressor and reduce the energy consumption of the vehicle.
Description
Technical Field
The application relates to the field of new energy automobiles, in particular to a vehicle-mounted air conditioner control method, a vehicle-mounted air conditioner control device, electronic equipment and a readable medium.
Background
With the development of new energy automobiles, the attention to the cruising ability of the new energy automobiles is increasingly raised, and the energy loss of an air conditioning system in the new energy automobiles in the running process is an important component of the energy consumption of the whole automobile, so that the cruising ability of the new energy automobiles is greatly affected. Therefore, it is an important issue to control the energy consumption of the air conditioning system.
In the related art, an energy storage device is added to a vehicle to assist an air conditioning system in controlling the temperature inside the vehicle.
However, in such a scheme, the control precision between the operation of the air conditioner and the energy storage of the energy storage device is not high, and the energy storage process brings additional working pressure to the air conditioner compressor, so that the operation efficiency of the compressor is reduced, and the energy consumption of the vehicle is not facilitated to be reduced.
Disclosure of Invention
Based on the technical problems, the application provides a vehicle-mounted air conditioner control method, a device, electronic equipment and a readable medium, so that the operation efficiency of a compressor is improved, and the energy consumption of a vehicle is reduced.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
According to an aspect of the embodiment of the present application, there is provided a vehicle-mounted air conditioner control method, including:
acquiring the evaporation target temperature of an evaporator of the air conditioner and the energy storage medium temperature of an energy storage medium in an energy storage device of the air conditioner, wherein the energy storage medium is used for transferring energy among a compressor, the evaporator and the energy storage device of the air conditioner;
determining an energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature;
And controlling the flow of the energy storage medium conveyed by the compressor of the air conditioner to the evaporator and the energy storage device according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature.
In some embodiments of the present application, based on the above technical solutions, the determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature includes:
acquiring a plurality of temperature intervals corresponding to the energy accumulator, wherein each temperature interval corresponds to a temperature mapping relation, and the temperature mapping relation is a relation between the temperature of an energy storage medium and the temperature of a candidate medium;
determining a candidate medium temperature according to a temperature mapping relation corresponding to a temperature interval where the energy storage medium temperature is located and the energy storage medium temperature;
one of the candidate medium temperature and the evaporation target temperature is determined as an energy storage target temperature of the energy storage device.
In some embodiments of the present application, based on the above technical solutions, the energy storage device includes a regenerator and a heat reservoir, and the regenerator, the heat reservoir and a condenser of the air conditioner are connected through an on-off three-way valve; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, wherein the flow comprises the following steps:
If the air conditioner is in a refrigeration energy storage mode, opening an output expansion valve of the condenser, opening a stop valve of the cold accumulator and closing the stop valve of the heat accumulator so as to output energy storage medium to the condenser through a compressor;
controlling the opening of an input expansion valve of the evaporator according to the evaporation target temperature so as to adjust the flow rate of the energy storage medium flowing through the evaporator from the condenser;
and controlling the opening degree of an input expansion valve of the cold accumulator according to the energy storage target temperature so as to adjust the flow rate of the energy storage medium flowing through the cold accumulator from the condenser.
In some embodiments of the present application, based on the above technical solutions, the method further includes:
if the air conditioner is in a cold accumulator refrigeration mode, closing the output expansion valve of the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat accumulator;
and controlling the on-off three-way valve to communicate the cold accumulator with the evaporator so as to supply cold to the evaporator through the cold accumulator.
In some embodiments of the present application, based on the above technical solutions, the heat reservoir, the evaporator and the compressor are connected by a proportional three-way valve; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, and further comprising:
If the air conditioner is in a heating energy storage mode, opening an input expansion valve of the evaporator and an input expansion valve of the heat reservoir, opening a stop valve of the heat reservoir and closing the stop valve of the cold reservoir;
and controlling the proportional three-way valve according to the evaporation target temperature and the energy storage target temperature so as to adjust the flow of the energy storage medium flowing to the evaporator and the energy storage device.
In some embodiments of the present application, based on the above technical solutions, the method further includes:
if the air conditioner is in a heat reservoir heating mode, closing the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat reservoir;
and controlling the on-off three-way valve to communicate the heat reservoir with the evaporator so as to supply heat to the evaporator through the heat reservoir.
In some embodiments of the present application, based on the above technical solutions, the method further includes:
according to the operation mode of the air conditioner, disconnecting an energy storage medium channel between the compressor and the evaporator and opening the energy storage medium channel between the compressor and the energy storage device;
and conveying the energy storage medium to the energy storage device through the compressor according to the energy storage target temperature so as to enable the energy storage medium to reach the energy storage target temperature.
According to an aspect of the embodiments of the present application, there is provided an in-vehicle air conditioner control device, including:
the temperature acquisition module is used for acquiring the evaporation target temperature of the evaporator of the air conditioner and the energy storage medium temperature of the energy storage medium in the energy storage device of the air conditioner, wherein the energy storage medium is used for transmitting energy among the compressor of the air conditioner, the evaporator and the energy storage device;
the target determining module is used for determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature;
and the temperature control module is used for controlling the flow of the compressor of the air conditioner to the evaporator and the energy storage device to convey the energy storage medium according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature.
According to an aspect of the embodiments of the present application, there is provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the vehicle-mounted air conditioner control method as in the above technical scheme via execution of the executable instructions.
According to an aspect of the embodiments of the present application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the vehicle-mounted air conditioner control method as in the above technical solutions.
In the embodiment of the application, in the process of energy storage of the energy storage device, the energy storage target temperature is determined according to the energy storage medium temperature of the energy storage medium and the target temperature of the evaporator, so that the output flow of the compressor to the evaporator and the energy storage device is adjusted according to the target temperature of the evaporator and the target temperature of the energy storage device, the temperature of the energy storage device can be dynamically adjusted according to the temperature of the energy storage medium, the working pressure of the energy storage process to the compressor is prevented from being too large, the running efficiency of the compressor is improved, and the energy consumption of a vehicle is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is an air conditioning system architecture to which a vehicle-mounted air conditioning control scheme is applied in an embodiment of the present application.
Fig. 2 is a general flowchart of a vehicle-mounted air conditioner control method in an embodiment of the present application.
Fig. 3 shows a flowchart of a vehicle-mounted air conditioner control method according to an embodiment of the present application.
Fig. 4 is a schematic diagram illustrating an operating state of the air conditioner in the refrigeration and energy storage mode in the embodiment of the present application.
Fig. 5 is a schematic diagram illustrating a working state of cold accumulator refrigeration in an embodiment of the present application.
Fig. 6 is a schematic diagram illustrating an operating state of the air conditioner in the heating and energy storage mode according to an embodiment of the present application.
Fig. 7 is a schematic diagram illustrating a working state of heat reservoir heating in the embodiment of the present application.
Fig. 8 is a schematic diagram illustrating the operation of the cold accumulation mode in the embodiment of the present application.
Fig. 9 is a schematic diagram illustrating the operation of the heat storage mode in the embodiment of the present application.
Fig. 10 schematically shows a block diagram of the vehicle-mounted air conditioner control device in the embodiment of the present application.
Fig. 11 shows a schematic diagram of a computer system suitable for use in implementing the electronic device of the embodiments of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
It is understood that the scheme of the application can be applied to the air conditioning control process of the new energy automobile. In the scheme of the application, the vehicle-mounted air conditioner is specifically an air conditioner combining a heat pump air conditioner with an energy accumulator, and the air conditioner has various working modes, such as modes of independent cooling and heating, independent cold and heat storage, combined cooling and heating and the like. The evaporator and the energy accumulator of the air conditioner are connected in parallel, and the refrigerant can flow through the evaporator and the energy accumulator respectively, so that the efficient operation of the evaporator and the energy accumulator can be ensured. The evaporator and the energy accumulator are respectively in independent loops and are respectively controlled.
With the development of new energy automobiles, the attention to the cruising ability of the new energy automobiles is increasingly raised, and the energy loss of an air conditioning system in the new energy automobiles in the running process is an important component of the energy consumption of the whole automobile, so that the cruising ability of the new energy automobiles is greatly affected. Therefore, it is an important issue to control the energy consumption of the air conditioning system. In the related art, an energy storage device is added to a vehicle to assist an air conditioning system in controlling the temperature inside the vehicle. However, in such a scheme, the control precision between the operation of the air conditioner and the energy storage of the energy storage device is not high, and the energy storage process brings additional working pressure to the air conditioner compressor, so that the operation efficiency of the compressor is reduced, and the energy consumption of the vehicle is not facilitated to be reduced.
Based on the above, the application provides a vehicle-mounted air conditioner control method. Referring to fig. 1, fig. 1 is an air conditioning system architecture applying a vehicle-mounted air conditioning control scheme in an embodiment of the present application. As shown in fig. 1, the air conditioning system in the present application mainly includes a compressor 101, a four-way reversing valve 102, a condenser 103, a large-caliber expansion valve 104, an air conditioning pipe 105, a large-caliber expansion valve 106, an evaporator 107, a gas-liquid separator 108, a large-caliber expansion valve 109, an on-off three-way valve 110, a regenerator 111, a stop valve 112, a heat reservoir 113, a stop valve 114, a water pump 115, a cooling water pipe 116, and a proportional three-way valve 117. The heat pump air conditioner realizes refrigeration and heating through the switching of the four-way valve 102. The accumulator is divided into a heat reservoir 113 and a cold accumulator 111, and the heat reservoir 113 and the cold accumulator 111 are connected in parallel to the refrigerant circuit. The heat reservoir 113 and the regenerator 111 are connected to the evaporator 107 through a coolant circuit, and provide heat or cold to the evaporator 107.
The heat reservoir contains heat storage phase change material, and the cold reservoir is filled with cold storage phase change material. In one embodiment, the temperature of the refrigerant at the outlet of the compressor is generally 80-100 ℃, so that the phase change temperature of the heat storage material is lower than 80 ℃, the solid-liquid phase change material polyethylene glycol is selected, the phase change temperature is 55 ℃, the temperature of the refrigerant measured by the evaporator is 1-10 ℃, the cold storage material can be tetradecane as the phase change material, and the phase change temperature is 4.5 ℃. The air conditioner pipe loop is provided with a refrigerant R134a, and the cooling water pipe loop is provided with 50% glycol.
In the energy storage and refrigeration/heat independent operation mode of the energy storage air conditioner, the system can dynamically calculate the target temperature T2 of the energy storage according to the medium temperature T of the energy storage, and the energy storage is adjusted according to the T2. The evaporator is adjusted according to the target evaporation temperature T1 of the evaporator. When the energy storage and the refrigeration/heating are operated simultaneously, the evaporator is regulated according to T1, and the energy storage is regulated according to the lower or higher one of T1 and T2. By the control method, reasonable distribution of energy is realized, and efficient refrigeration/heat and energy storage of the system are ensured.
Referring to fig. 2, fig. 2 is a general flowchart of a vehicle-mounted air conditioner control method in an embodiment of the present application. As shown in fig. 2, the controller of the vehicle first determines the cooling or heating requirement and the energy storage requirement of the whole vehicle. If it is determined that there is a cooling or heating demand, but there is no energy storage demand, the controller further determines whether the energy storage cooling or heating demand is required. If necessary, a cooling or heating mode of the energy storage air conditioner is performed and adjusted according to the target temperature T1 of the passenger compartment. If the accumulator is required to be cooled or heated, the accumulator cooling or heating mode is operated, and the temperature is also adjusted according to the target evaporation temperature T1 of the evaporator. If there is a need for cooling or heating and there is also a need for energy storage, the controller may further calculate a target temperature T1 of the passenger compartment, and detect a temperature T of the cold or heat storage medium in the accumulator, and calculate a cold storage target temperature T2 or heat storage target temperature T3 of the energy storage medium. Finally, the controller compares the target temperature T1 of the passenger compartment with the cool storage target temperature T2 or the heat storage target temperature T3, operates the first cooling or heating mode if T1 is less than T2 or T3, and adjusts the temperatures of the evaporator and the accumulator according to T1. If T1 is greater than T2 or T3, a second cooling or heating mode is operated, and the evaporator is adjusted according to T1 and the temperature of the accumulator is adjusted according to T2 or T2. If there is no cooling or heating demand and only an energy storage demand, the controller will operate the energy storage mode of the energy storage air conditioner.
The implementation details of the technical solutions of the embodiments of the present application are described in detail below: fig. 3 shows a flowchart of a vehicle-mounted air conditioner control method according to an embodiment of the present application, which may be specifically performed by a control system of a vehicle, for example, by a vehicle-mounted computer, a mobile terminal, or a server where the control system is located. Referring to fig. 3, the method for controlling the vehicle-mounted air conditioner at least includes steps S310 to S330, and is described in detail as follows:
step S310, obtaining an evaporation target temperature of an evaporator of the air conditioner and an energy storage medium temperature of an energy storage medium in an energy storage device of the air conditioner, wherein the energy storage medium is used for transferring energy among a compressor, the evaporator and the energy storage device of the air conditioner.
In the present embodiment, the evaporation target temperature of the evaporator is generally determined according to the temperature set by the air conditioner. For example, when the user sets the air conditioner of the vehicle to cool or heat, the evaporation target temperature is determined according to the temperature set by the user. The energy storage medium temperature of the energy storage medium refers to the current temperature of the energy storage medium of the energy storage device. It will be appreciated that the energy storage may store heat or cool, and the temperature of the energy storage medium may be high or low, respectively. In the case where the energy storage device is not storing energy, the energy storage medium temperature may be equal to the current ambient temperature. A plurality of accumulators may be included in the vehicle and may function the same or different from accumulator to accumulator. The energy storage medium is used to transfer energy between the compressor, the evaporator and the energy storage. Depending on the cold or heat storage, the form of the energy storage medium may vary, for example, it may be gaseous when high temperatures are transferred and liquid when low temperatures are transferred.
Step S320, determining an energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature.
The target temperature of the energy storage means the temperature at which the energy storage device reaches a certain energy storage capacity, which is usually the temperature of the energy storage medium in the energy storage device. The temperature need not be the temperature of the energy storage medium at which the energy storage reaches the maximum energy storage temperature. Specifically, according to the difference between the temperature of the energy storage medium and the evaporation target temperature, the heat conduction capacity of the energy storage medium and the energy storage capacity of the energy storage device, the temperature difference between the current temperature and the energy storage temperature of the energy storage device can be determined, so that the energy storage target temperature is determined. For example, if the temperature difference between the evaporation target temperature and the energy storage medium temperature does not exceed the predetermined temperature difference threshold, the energy storage medium temperature may be raised by a predetermined temperature based on the evaporation target temperature, and if the temperature difference exceeds the temperature difference threshold, the energy storage medium temperature is lowered by a predetermined temperature, for example, if the evaporation target temperature is 10 degrees celsius, and the energy storage medium temperature is 15 degrees celsius, and the temperature difference threshold is 15 degrees celsius, the energy storage target temperature may be determined based on the evaporation target temperature, for example, set to 20 degrees celsius, and if the evaporation target temperature is 10 degrees celsius, and the energy storage medium temperature is 25 degrees celsius, and if the temperature difference threshold is 10 degrees celsius, the energy storage target temperature may be determined based on the energy storage medium temperature, for example, set to 30 degrees celsius.
And step S330, controlling the flow of the compressor of the air conditioner to the evaporator and the energy storage device to convey the energy storage medium according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature.
Specifically, a controller of the vehicle controls the temperature of the evaporator and the accumulator by controlling the flow of the energy storage medium to both. The specific flow value can be calculated based on the difference between the current temperature of the evaporator and the evaporation target temperature, the heating or cooling efficiency of the evaporator, the difference between the current temperature of the energy accumulator and the energy storage target temperature, and the heating or cooling efficiency of the energy accumulator. Generally, the larger the temperature difference is, the higher the flow rate is, and the higher the heating or cooling efficiency is, the flow rate can be correspondingly reduced. The flow value may be adjusted in real time based on the temperature difference until the evaporator and the accumulator reach the corresponding temperatures.
In the embodiment of the application, in the process of energy storage of the energy storage device, the energy storage target temperature is determined according to the energy storage medium temperature of the energy storage medium and the target temperature of the evaporator, so that the output flow of the compressor to the evaporator and the energy storage device is adjusted according to the target temperature of the evaporator and the target temperature of the energy storage device, the temperature of the energy storage device can be dynamically adjusted according to the temperature of the energy storage medium, the working pressure of the energy storage process to the compressor is prevented from being too large, the running efficiency of the compressor is improved, and the energy consumption of a vehicle is reduced.
In one embodiment of the present application, based on the above technical solution, step S320, determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature specifically includes the following steps:
acquiring a plurality of temperature intervals corresponding to the energy accumulator, wherein each temperature interval corresponds to a temperature mapping relation, and the temperature mapping relation is a relation between the temperature of an energy storage medium and the temperature of a candidate medium;
determining a candidate medium temperature according to a temperature mapping relation corresponding to a temperature interval where the energy storage medium temperature is located and the energy storage medium temperature;
one of the candidate medium temperature and the evaporation target temperature is determined as an energy storage target temperature of the energy storage device.
In particular, depending on the specific use of the energy store, the energy store may be configured with a corresponding temperature calculation model. The temperature calculation model includes temperature intervals, and each temperature interval corresponds to a calculation mode for calculating the candidate medium temperature based on the energy storage medium temperature. And determining a candidate medium temperature according to a temperature mapping relation corresponding to a temperature interval where the energy storage medium temperature is located and the energy storage medium temperature, and determining one of the candidate medium temperature and the evaporation target temperature as the energy storage target temperature of the energy storage device. In general, the temperature of the candidate medium and the evaporation target temperature are closer to the target temperature for the operation of the air conditioner, for example, the air conditioner is heated, and then a higher temperature is selected, and the refrigeration is performed, and then a lower temperature is selected.
In particular, if the accumulator is a regenerator, the regenerator is provided with a regenerator calculation model. The model comprises a plurality of different medium temperature intervals, and each medium temperature interval has a corresponding adjustment temperature delta 1 The lower the medium temperature interval, the greater the adjustment temperature. Model is based on the temperature T of cold accumulation medium Cold storage medium As input variables, according to the inputThe medium temperature interval is judged by the variable, and the target evaporation temperature calculation relation is T 2 ＝T Cold storage medium －δ 1 . The cold accumulation material takes tetradecane as an example, and a cold accumulation calculation model is as follows:
| T cold storage medium | ＞25℃ | (15℃，25℃) | (5℃，15℃) |
| T 2 | T Cold storage medium －10℃ | T Cold storage medium －12℃ | T Cold storage medium －15℃ |
If the energy accumulator is a heat accumulator, the heat accumulator is provided with a heat accumulation calculation model. The model comprises a plurality of different medium temperature intervals, and each medium temperature interval has a corresponding adjustment temperature delta 2 . Since the lower the medium temperature, the heat exchange capacity decreases, and the adjustment temperature in the low temperature zone needs to be increased in order to ensure good heat exchange efficiency. The model uses the temperature T of the heat storage medium Heat storage medium As an input variable, judging a medium temperature interval according to the input variable, wherein the target evaporation temperature calculation relation is T 3 ＝T Heat storage medium +δ 2 . The heat storage calculation model takes polyethylene glycol as an example, and the calculation model is as follows:
| T Heat storage medium | ＞25℃ | (5℃，25℃) | (－15℃，5℃) |
| T 3 | T Heat storage medium +10℃ | T Heat storage medium +15℃ | T Heat storage medium +20℃ |
In an embodiment of the present application, based on the above technical solution, the accumulator comprises a regenerator and a heat reservoir, and the regenerator, the heat reservoir and the condenser of the air conditioner are connected by an on-off three-way valve. The above step, wherein the flow rate of the energy storage medium to the evaporator and the energy storage device is controlled by controlling the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, and the method specifically comprises the following steps:
if the air conditioner is in a refrigeration energy storage mode, opening an output expansion valve of the condenser, opening a stop valve of the cold accumulator and closing the stop valve of the heat accumulator so as to output energy storage medium to the condenser through a compressor;
controlling the opening of an input expansion valve of the evaporator according to the evaporation target temperature so as to adjust the flow rate of the energy storage medium flowing through the evaporator from the condenser;
and controlling the opening degree of an input expansion valve of the cold accumulator according to the energy storage target temperature so as to adjust the flow rate of the energy storage medium flowing through the cold accumulator from the condenser.
Specifically, when there is a need for both refrigeration and energy storage, the refrigeration and energy storage mode is turned on. For convenience of description, referring to fig. 4, fig. 4 is a schematic diagram illustrating an operating state of the air conditioner in the refrigeration and energy storage mode according to an embodiment of the present application. At this time, the output expansion valve (i.e., the large-caliber expansion valve 104) of the condenser 103 is completely opened, the input expansion valve (i.e., the large-caliber expansion valve 109) of the evaporator 107 and the input expansion valve (i.e., the large-caliber expansion valve 106) of the regenerator 111 are opened to a throttled state, the stop valve 112 of the heat accumulator 113 is closed, and the stop valve 114 corresponding to the regenerator is opened. The high-temperature and high-pressure gaseous refrigerant compressed by the compressor 101 is condensed in the condenser 103, throttled by the large-caliber expansion valve 109 and the large-caliber expansion valve 106, and then enters the evaporator 107 and the regenerator 111 to exchange heat. At this time, the evaporator 107 is at the evaporation target temperature T 1 Is adjusted according to the evaporation target temperature T of the regenerator 111 1 And the energy storage target temperature T 2 The lower of which is adjusted. The opening degrees of the large-diameter expansion valve 109 and the large-diameter expansion valve 106 are controlled to adjust the cooling capacity of the regenerator 111 and the evaporator 107.
In an embodiment of the present application, based on the above technical solution, the method further includes:
if the air conditioner is in a cold accumulator refrigeration mode, closing the output expansion valve of the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat accumulator;
and controlling the on-off three-way valve to communicate the cold accumulator with the evaporator so as to supply cold to the evaporator through the cold accumulator.
In this embodiment, the vehicle has a cooling demand and uses a regenerator for cooling. Referring to fig. 5, fig. 5 is a schematic diagram illustrating a working state of the regenerator in the embodiment of the present application. At this time, the compressor 101, the condenser output expansion valve, the evaporator input expansion valve, and the heat storage input expansion valve (large-caliber expansion valves 104, 106, 109) are not opened, the water pump 115 is opened, and the on-off three-way valve 110 connects the regenerator 111 and the evaporator 107. The water pump 115 drives the refrigerant in the loop between the regenerator 111 and the evaporator 107 to flow, and the cold energy in the regenerator 111 is directly used for cooling an air conditioning system. At this time, the cooling capacity is controlled by controlling the flow rate of the water pump 115.
In an embodiment of the present application, based on the above technical solution, the heat storage device, the evaporator and the compressor are connected through a proportional three-way valve, and the above steps, according to the evaporation target temperature and the energy storage target temperature, control the flow rate of the compressor of the air conditioner to the evaporator and the energy storage device to convey the energy storage medium, further include:
if the air conditioner is in a heating energy storage mode, opening an input expansion valve of the evaporator and an input expansion valve of the heat reservoir, opening a stop valve of the heat reservoir and closing the stop valve of the cold reservoir;
and controlling the proportional three-way valve according to the evaporation target temperature and the energy storage target temperature so as to adjust the flow of the energy storage medium flowing to the evaporator and the energy storage device.
In this embodiment, the vehicle has a heating demand and an energy storage demand, and the heating energy storage mode is turned on. For convenience of description, referring to fig. 6, fig. 6 is a schematic diagram illustrating an operating state of the air conditioning heating energy storage mode in the embodiment of the present application. At this time, the input expansion valve (i.e., the large-caliber expansion valve 104) of the condenser 103 is in a throttled state, the input expansion valve (the large-caliber expansion valve 109) of the evaporator and the input expansion valve (the large-caliber expansion valve 106) of the heat reservoir 113 are in a fully opened state, the shut-off valve 114 of the regenerator 111 is in a closed state, and the shut-off valve 112 of the heat reservoir is in an opened state. The compressor 101 delivers a high-temperature and high-pressure gaseous refrigerant to the evaporator 107 and the heat reservoir 113. At this time, the evaporator 107 is at the evaporation target temperature T 1 Regulated so that the heat reservoir 113 is at the evaporation target temperature T 1 And the energy storage target temperature T 3 The higher of which is adjusted. The temperatures of the evaporator 107 and the heat reservoir 113 are regulated by controlling the flow rates into the evaporator 107 and the heat reservoir 113 through the proportional three-way valve 117.
In an embodiment of the present application, based on the above technical solution, the method further includes:
if the air conditioner is in a heat reservoir heating mode, closing the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat reservoir;
and controlling the on-off three-way valve to communicate the heat reservoir with the evaporator so as to supply heat to the evaporator through the heat reservoir.
In this embodiment, the vehicle has a heating demand, and the heat reservoir is used for heating. Referring to fig. 7, fig. 7 is a schematic diagram illustrating a working state of heat storage device heating in an embodiment of the present application. At this time, the compressor and other parts are in a closed state, the on-off three-way valve is in a state that the heat reservoir 113 is connected with the evaporator 107, and the heat in the heat reservoir 113 is brought into the evaporator 107 by the water pump 115 to supply heat. At this time, the heating amount is controlled by controlling the flow rate of the water pump 115.
In an embodiment of the present application, based on the above technical solution, the method further includes:
According to the operation mode of the air conditioner, disconnecting an energy storage medium channel between the compressor and the evaporator and opening the energy storage medium channel between the compressor and the energy storage device;
and conveying the energy storage medium to the energy storage device through the compressor according to the energy storage target temperature so as to enable the energy storage medium to reach the energy storage target temperature.
In this application, the vehicle has only energy storage requirements and no refrigeration or heating requirements. The individual cool storage mode is turned on or the heat storage mode is turned on. Referring to fig. 8, fig. 8 is a schematic diagram illustrating the operation of the cold accumulation mode in the embodiment of the present application. When the vehicle has no refrigeration requirement and energy storage requirement, the independent cold storage mode is started. After the high-temperature high-pressure gaseous refrigerant compressed by the compressor is condensed in the condenser, the liquid refrigerant is throttled by the large-caliber expansion valve 106 to become a low-temperature low-pressure refrigerant. At this time, the shut-off valve 112 is closed and the shut-off valve 114 is opened. The low-pressure refrigerant evaporates in the regenerator 111 of the accumulator, and transfers the cold to the cold storage medium. At this time, the evaporator 107 is adjusted in accordance with the target evaporation temperature T2.
When the vehicle has no heating requirement and no energy storage requirement, the heat storage mode is independently started. Please refer to the figure Fig. 9 is a schematic diagram of the operation of the heat storage mode in the embodiment of the present application. At this time, the large-diameter expansion valve 104 is in a throttled state, the large-diameter expansion valve 109 is in a fully opened state, the large-diameter expansion valve 106 is in a fully closed state, the stop valve 114 is in a closed state, and the stop valve 112 is in an opened state. The compressor compresses the low-temperature low-pressure gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant, the refrigerant enters the heat reservoir 113 through the refrigerant four-way valve 102, and the heat storage medium stores heat. At this time, the heat reservoir 113 is at the target condensation temperature T 3 And adjusting.
It should be noted that although the steps of the methods in the present application are depicted in the accompanying drawings in a particular order, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
The following describes the implementation of the apparatus of the present application, which may be used to execute the vehicle-mounted air conditioner control method in the above-described embodiments of the present application. Fig. 10 schematically shows a block diagram of the vehicle-mounted air conditioner control device in the embodiment of the present application. As shown in fig. 10, the in-vehicle air conditioner control device 1000 may mainly include:
A temperature acquisition module 1010, configured to acquire an evaporation target temperature of an evaporator of the air conditioner and an energy storage medium temperature of an energy storage medium in an energy storage of the air conditioner, where the energy storage medium is used to transfer energy among a compressor of the air conditioner, the evaporator, and the energy storage;
a target determination module 1020 for determining an energy storage target temperature of the energy storage device based on the evaporation target temperature and the energy storage medium temperature;
and the temperature control module 1030 is configured to control, according to the evaporation target temperature and the energy storage target temperature, flow rates of the energy storage medium delivered by the compressor of the air conditioner to the evaporator and the energy storage device, so that the evaporator reaches the evaporation target temperature and the energy storage device reaches the energy storage target temperature.
In some embodiments of the present application, based on the above technical solutions, the target determining module 1020 is specifically configured to: acquiring a plurality of temperature intervals corresponding to the energy accumulator, wherein each temperature interval corresponds to a temperature mapping relation, and the temperature mapping relation is a relation between the temperature of an energy storage medium and the temperature of a candidate medium; determining a candidate medium temperature according to a temperature mapping relation corresponding to a temperature interval where the energy storage medium temperature is located and the energy storage medium temperature; one of the candidate medium temperature and the evaporation target temperature is determined as an energy storage target temperature of the energy storage device.
In some embodiments of the present application, based on the above technical solutions, the energy storage device includes a regenerator and a heat reservoir, and the regenerator, the heat reservoir and a condenser of the air conditioner are connected through an on-off three-way valve; the temperature control module 1030 is specifically configured to: if the air conditioner is in a refrigeration energy storage mode, opening an output expansion valve of the condenser, opening a stop valve of the cold accumulator and closing the stop valve of the heat accumulator so as to output energy storage medium to the condenser through a compressor; controlling the opening of an input expansion valve of the evaporator according to the evaporation target temperature so as to adjust the flow rate of the energy storage medium flowing through the evaporator from the condenser; and controlling the opening degree of an input expansion valve of the cold accumulator according to the energy storage target temperature so as to adjust the flow rate of the energy storage medium flowing through the cold accumulator from the condenser.
In some embodiments of the present application, based on the above technical solutions, the method further includes:
if the air conditioner is in a cold accumulator refrigeration mode, closing the output expansion valve of the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat accumulator;
And controlling the on-off three-way valve to communicate the cold accumulator with the evaporator so as to supply cold to the evaporator through the cold accumulator.
In some embodiments of the present application, based on the above technical solutions, the heat reservoir, the evaporator and the compressor are connected by a proportional three-way valve; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, and further comprising:
if the air conditioner is in a heating energy storage mode, opening an input expansion valve of the evaporator and an input expansion valve of the heat reservoir, opening a stop valve of the heat reservoir and closing the stop valve of the cold reservoir;
and controlling the proportional three-way valve according to the evaporation target temperature and the energy storage target temperature so as to adjust the flow of the energy storage medium flowing to the evaporator and the energy storage device.
In some embodiments of the present application, based on the above technical solutions, the temperature control module 1030 is further configured to: if the air conditioner is in a heat reservoir heating mode, closing the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat reservoir; and controlling the on-off three-way valve to communicate the heat reservoir with the evaporator so as to supply heat to the evaporator through the heat reservoir.
In some embodiments of the present application, based on the above technical solutions, the temperature control module 1030 is further configured to: according to the operation mode of the air conditioner, disconnecting an energy storage medium channel between the compressor and the evaporator and opening the energy storage medium channel between the compressor and the energy storage device; and conveying the energy storage medium to the energy storage device through the compressor according to the energy storage target temperature so as to enable the energy storage medium to reach the energy storage target temperature.
It should be noted that, the apparatus provided in the foregoing embodiments and the method provided in the foregoing embodiments belong to the same concept, and a specific manner in which each module performs an operation has been described in detail in the method embodiment, which is not described herein again.
Fig. 11 shows a schematic diagram of a computer system suitable for use in implementing the electronic device of the embodiments of the present application.
It should be noted that, the computer system 1100 of the electronic device shown in fig. 11 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.
As shown in fig. 11, the computer system 1100 includes a central processing unit (Centra lProcessing Unit, CPU) 1101 that can execute various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 1102 or a program loaded from a storage section 1108 into a random access Memory (Random Access Memory, RAM) 1103. In the RAM 1103, various programs and data required for system operation are also stored. The CPU 1101, ROM 1102, and RAM 1103 are connected to each other by a bus 1104. An Input/Output (I/O) interface 1105 is also connected to bus 1104.
The following components are connected to the I/O interface 1105: an input section 1106 including a keyboard, a mouse, and the like; an output portion 1107 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crysta l Display, LCD), and a speaker; a storage section 1108 including a hard disk or the like; and a communication section 1109 including a network interface card such as a LAN (Loca lArea Network ) card, a modem, or the like. The communication section 1109 performs communication processing via a network such as the internet. The drive 1110 is also connected to the I/O interface 1105 as needed. Removable media 1111, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is installed as needed on drive 1110, so that a computer program read therefrom is installed as needed into storage section 1108.
In particular, according to embodiments of the present application, the processes described in the various method flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network via the communication portion 1109, and/or installed from the removable media 1111. When executed by a Central Processing Unit (CPU) 1101, performs the various functions defined in the system of the present application.
It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), a flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, in accordance with embodiments of the present application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A vehicle-mounted air conditioner control method, characterized by comprising:
acquiring the evaporation target temperature of an evaporator of the air conditioner and the energy storage medium temperature of an energy storage medium in an energy storage device of the air conditioner, wherein the energy storage medium is used for transferring energy among a compressor, the evaporator and the energy storage device of the air conditioner;
determining an energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature;
and controlling the flow of the energy storage medium conveyed by the compressor of the air conditioner to the evaporator and the energy storage device according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature.
2. The vehicle-mounted air conditioner control method according to claim 1, wherein the determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature includes:
acquiring a plurality of temperature intervals corresponding to the energy accumulator, wherein each temperature interval corresponds to a temperature mapping relation, and the temperature mapping relation is a relation between the temperature of an energy storage medium and the temperature of a candidate medium;
Determining a candidate medium temperature according to a temperature mapping relation corresponding to a temperature interval where the energy storage medium temperature is located and the energy storage medium temperature;
one of the candidate medium temperature and the evaporation target temperature is determined as an energy storage target temperature of the energy storage device.
3. The control method of an on-vehicle air conditioner according to claim 1, wherein the accumulator comprises a regenerator and a heat reservoir, and the regenerator, the heat reservoir and a condenser of the air conditioner are connected by an on-off three-way valve; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, wherein the flow comprises the following steps:
if the air conditioner is in a refrigeration energy storage mode, opening an output expansion valve of the condenser, opening a stop valve of the cold accumulator and closing the stop valve of the heat accumulator so as to output energy storage medium to the condenser through a compressor;
controlling the opening of an input expansion valve of the evaporator according to the evaporation target temperature so as to adjust the flow rate of the energy storage medium flowing through the evaporator from the condenser;
and controlling the opening degree of an input expansion valve of the cold accumulator according to the energy storage target temperature so as to adjust the flow rate of the energy storage medium flowing through the cold accumulator from the condenser.
4. The vehicle-mounted air conditioner control method according to claim 3, characterized in that the method further comprises:
if the air conditioner is in a cold accumulator refrigeration mode, closing the output expansion valve of the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat accumulator;
and controlling the on-off three-way valve to communicate the cold accumulator with the evaporator so as to supply cold to the evaporator through the cold accumulator.
5. The vehicle-mounted air conditioner control method according to claim 3, wherein the heat reservoir, the evaporator and the compressor are connected by a proportional three-way valve; and controlling the flow of the energy storage medium to the evaporator and the energy storage device by the compressor of the air conditioner according to the evaporation target temperature and the energy storage target temperature, and further comprising:
if the air conditioner is in a heating energy storage mode, opening an input expansion valve of the evaporator and an input expansion valve of the heat reservoir, opening a stop valve of the heat reservoir and closing the stop valve of the cold reservoir;
and controlling the proportional three-way valve according to the evaporation target temperature and the energy storage target temperature so as to adjust the flow of the energy storage medium flowing to the evaporator and the energy storage device.
6. The vehicle-mounted air conditioner control method according to claim 5, characterized in that the method further comprises:
if the air conditioner is in a heat reservoir heating mode, closing the compressor, the output expansion valve of the condenser, the input expansion valve of the evaporator and the input expansion valve of the heat reservoir;
and controlling the on-off three-way valve to communicate the heat reservoir with the evaporator so as to supply heat to the evaporator through the heat reservoir.
7. The vehicle-mounted air conditioner control method according to claim 1, characterized in that the method further comprises:
according to the operation mode of the air conditioner, disconnecting an energy storage medium channel between the compressor and the evaporator and opening the energy storage medium channel between the compressor and the energy storage device;
and conveying the energy storage medium to the energy storage device through the compressor according to the energy storage target temperature so as to enable the energy storage medium to reach the energy storage target temperature.
8. A vehicle-mounted air conditioner control device, characterized by comprising:
the temperature acquisition module is used for acquiring the evaporation target temperature of the evaporator of the air conditioner and the energy storage medium temperature of the energy storage medium in the energy storage device of the air conditioner, wherein the energy storage medium is used for transmitting energy among the compressor of the air conditioner, the evaporator and the energy storage device;
The target determining module is used for determining the energy storage target temperature of the energy storage device according to the evaporation target temperature and the energy storage medium temperature;
and the temperature control module is used for controlling the flow of the compressor of the air conditioner to the evaporator and the energy storage device to convey the energy storage medium according to the evaporation target temperature and the energy storage target temperature so as to enable the evaporator to reach the evaporation target temperature and enable the energy storage device to reach the energy storage target temperature.
9. An electronic device, comprising:
a processor;
a memory for storing executable instructions of the processor;
wherein the processor is configured to execute the vehicle-mounted air conditioner control method according to any one of claims 1 to 7 via execution of the executable instructions.
10. A computer-readable medium on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the vehicle-mounted air conditioner control method according to any one of claims 1 to 7.
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| CN202410030441.XA CN117621773A (en) | 2024-01-08 | 2024-01-08 | Vehicle-mounted air conditioner control method and device, electronic equipment and readable medium |
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| CN202410030441.XA CN117621773A (en) | 2024-01-08 | 2024-01-08 | Vehicle-mounted air conditioner control method and device, electronic equipment and readable medium |
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