CN114056044A - Control method and operation control device for parking air conditioner and air conditioner - Google Patents
Control method and operation control device for parking air conditioner and air conditioner Download PDFInfo
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- CN114056044A CN114056044A CN202111347958.4A CN202111347958A CN114056044A CN 114056044 A CN114056044 A CN 114056044A CN 202111347958 A CN202111347958 A CN 202111347958A CN 114056044 A CN114056044 A CN 114056044A
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000008859 change Effects 0.000 description 28
- 230000003247 decreasing effect Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 13
- 230000009467 reduction Effects 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 2
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- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3238—Cooling devices information from a variable is obtained related to the operation of the compressor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
Abstract
The invention discloses a control method and an operation control device for a parking air conditioner and the air conditioner, wherein the method comprises the following steps: acquiring a first operation parameter and a second operation parameter at intervals of a first preset time interval; when the first operation parameter meets a first preset condition for determining that the parking air conditioner is in a stable operation state, judging whether a second operation parameter meets a second preset condition for determining that the current of the whole machine is increased due to outdoor heat exchange variation, if the second operation parameter meets the second preset condition, reducing the operation frequency of a compressor and the rotating speed of an outdoor fan according to the increase degree of the current of the whole machine, and if the temperature in the automobile is higher than the set temperature, reducing the operation frequency of the compressor and the rotating speed of the outdoor fan and simultaneously increasing the rotating speed of the indoor fan, so that the parking air conditioner can be prevented from being out of order when the automobile runs, and the comfort level of a user is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and an operation control device for a parking air conditioner and the air conditioner.
Background
At present, the current operation control logic of the parking air conditioner is consistent with that of a conventional household air conditioner, the rotating speed of an inner fan and the rotating speed of an outer fan and the operating frequency of a compressor are controlled through the difference value of set temperature and actual temperature, the common parking air conditioner is similar to that of the conventional household air conditioner in design, however, when a vehicle is converted into a running state from the parking state, or the running speed is increased, if the parking air conditioner runs all the time, the wind resistance of an outdoor fan can be increased due to the negative pressure caused by the forward running of the vehicle, the load of an outdoor motor is increased, and the air conditioner can be failed under severe conditions.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides a control method, an operation control device and an air conditioner of a parking air conditioner, which can avoid the parking air conditioner from generating faults when an automobile runs to a certain extent and ensure the comfort of a user.
In a first aspect, an embodiment of the present invention provides a control method for a parking air conditioner, including:
acquiring a first operation parameter and a second operation parameter at intervals of a first preset time interval, wherein the first operation parameter comprises compressor operation frequency, outdoor fan rotating speed, indoor fan rotating speed, outside temperature and inside temperature, and the second operation parameter comprises compressor exhaust temperature, condenser outlet temperature and complete machine current;
judging whether the first operation parameter meets a first preset condition for determining that the parking air conditioner is in a stable operation state or not;
when the first preset condition is met, judging whether the second operation parameter meets a second preset condition for determining that the current of the whole machine is increased due to outdoor heat exchange variation;
when the second preset condition is met, judging whether the temperature in the vehicle is higher than a set temperature;
if the temperature in the vehicle is less than or equal to the set temperature, reducing the running frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine; and if the temperature in the vehicle is higher than the set temperature, reducing the running frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine, and increasing the rotating speed of the indoor fan.
According to the control method of the parking air conditioner provided by the first aspect of the invention, at least the following beneficial effects are achieved: when the parking air conditioner is in a cooling mode, the first operation parameter and the second operation parameter are acquired at intervals of a first preset time interval, the operation parameters of the parking air conditioner can be monitored, the operating state of the parking air conditioner can be judged according to the first operating parameter, the outdoor heat exchange state and the current change condition of the whole machine can be judged according to the second operating parameter, when the first operating parameter meets a first preset condition, the parking air conditioner can be determined to be in a stable operation state, the first operation parameter can not cause the current change of the whole machine, when the second operation parameter meets a second preset condition, can determine that the current of the whole machine is increased due to the deterioration of outdoor heat exchange, in order to prevent the outdoor motor of the air conditioner from being burnt due to overlarge current, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine, but the refrigerating capacity of the parking air conditioner is also reduced. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air conditioner system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
In one embodiment of the present invention, the first preset condition includes:
Fr-Fr-1＝0
Pr-Pr-1＝0
ir-ir-1＝0
Tn-Tn-1＜△T1
Tw-Tw-1＜△T1
wherein, FrFor the operating frequency of the compressor at the present moment, Fr-1For the operating frequency, P, of the compressor at the previous momentrIs the current outdoor windMachine speed, Pr-1Is the last moment outdoor fan speed, irIs the indoor fan speed i at the current momentr-1At the last moment, the rotating speed of the indoor fan, TnIs the temperature in the vehicle, T, at the present momentn-1Is the temperature in the vehicle, T, at the previous momentwIs the outside temperature of the vehicle at the present moment, Tw-1The temperature outside the vehicle at the previous moment is shown, and the delta T1 is a first preset temperature difference value.
In one embodiment of the present invention, the second preset condition includes:
TP-TP-1＞△T2
TL-TL-1＞△T2
DL-DL-1＞△L
wherein, TPIs the compressor discharge temperature at the present moment, TP-1Is the last moment compressor discharge temperature, TLIs the condenser outlet temperature, T, at the present momentL-1The condenser outlet temperature at the previous moment, DLFor the current of the whole machine at the present moment, DL-1The current of the whole machine at the previous moment, Δ T2 is a second preset temperature difference value, and Δ L is a preset current difference value.
In one embodiment of the invention, when the current increase amplitude of the whole machine is too large, a fault warning is sent out.
In one embodiment of the present invention, if the overall current satisfies condition DL/DL-1N, determining that the current increase amplitude of the whole machine is too large, wherein DLFor the current of the whole machine at the present moment, DL-1The current of the whole machine at the last moment is n, and n is a preset multiple.
In one embodiment of the invention, the fault alert comprises a beep and/or a fault code is displayed.
In one embodiment of the invention, after the fault warning is sent and the second preset time interval is waited, the parking air conditioner is controlled to be turned off.
In an embodiment of the present invention, the reducing the operating frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the overall current includes:
Fr＝Fr/m
Pr＝Pr/m
wherein, FrFor the operating frequency of the compressor, PrThe rotating speed of the outdoor fan is defined, and m is the ratio of the current of the whole machine at the current moment to the current of the whole machine at the previous moment.
In a second aspect, an embodiment of the present invention provides an operation control apparatus, including at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform a method of controlling a parking air conditioner as defined in any one of the embodiments of the first aspect.
According to the second aspect of the present invention, there is provided an operation control device, which has at least the following advantages: the operation control device may execute the control method of the parking air conditioner according to any one of the embodiments of the first aspect, when the parking air conditioner is in a cooling mode, the first operation parameter and the second operation parameter are obtained at intervals of a first preset time interval, the operation parameter of the parking air conditioner may be monitored, the operation state of the parking air conditioner may be judged according to the first operation parameter, the outdoor heat exchange state and the whole machine current change condition may be judged according to the second operation parameter, when the first operation parameter satisfies the first preset condition, it may be determined that the parking air conditioner is in a stable operation state, at this time, the first operation parameter may not cause the whole machine current change, when the second operation parameter satisfies the second preset condition, it may be determined that the outdoor heat exchange variation causes the whole machine current to increase, in order to prevent an outdoor motor of the air conditioner from being burned out due to an excessive current, the operation frequency of the compressor and the rotation speed of the outdoor fan may be reduced according to the degree of the increase of the whole machine current to reduce the whole machine current, but the cooling capacity of the parking air conditioner is also decreased. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air conditioner system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
In a third aspect, an embodiment of the present invention provides an air conditioner including the operation control device according to the embodiment of the second aspect. The air conditioner can be applied to the control method of the parking air conditioner as described in any one of the embodiments of the first aspect, when the parking air conditioner is in a cooling mode, the first operation parameter and the second operation parameter are obtained at intervals of a first preset time interval, the operation parameter of the parking air conditioner can be monitored, the operation state of the parking air conditioner can be judged according to the first operation parameter, the outdoor heat exchange state and the whole machine current change condition can be judged according to the second operation parameter, when the first operation parameter meets the first preset condition, the parking air conditioner can be determined to be in a stable operation state, at this time, the first operation parameter can not cause the whole machine current change, when the second operation parameter meets the second preset condition, the whole machine current increase caused by the outdoor heat exchange variation can be determined, in order to prevent the outdoor motor of the air conditioner from being burnt out due to the overlarge whole machine current, the operation frequency of the compressor and the rotation speed of the outdoor fan can be reduced according to the increase degree of the whole machine current so as to reduce the whole machine current, but the cooling capacity of the parking air conditioner is also decreased. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air conditioner system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform a control method of a parking air conditioner as set forth in any one of the embodiments of the first aspect.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, having at least the following beneficial effects: the computer-readable storage medium stores computer-executable instructions for causing a computer to perform the method for controlling a parking air conditioner according to any one of the embodiments of the first aspect, wherein when the parking air conditioner is in a cooling mode, a first operating parameter and a second operating parameter are obtained at intervals of a first preset time, the operating parameters of the parking air conditioner are monitored, the operating state of the parking air conditioner is determined according to the first operating parameter, the outdoor heat exchange state and the change of the whole machine current are determined according to the second operating parameter, when the first operating parameter satisfies a first preset condition, it is determined that the parking air conditioner is in a stable operating state, and when the second operating parameter satisfies a second preset condition, it is determined that the change of the outdoor heat exchange leads to the increase of the whole machine current, in order to prevent an outdoor motor of the air conditioner from being burned due to an excessive current, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine, but the refrigerating capacity of the parking air conditioner is also reduced. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air conditioner system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
The invention is further described below with reference to the accompanying drawings and examples;
FIG. 1 is a flowchart illustrating steps of a method for controlling a parking air conditioner according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating steps of a method for controlling a parking air conditioner according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a method for controlling a parking air conditioner according to another embodiment of the present invention;
FIG. 4 is a flowchart illustrating steps of a method for controlling a parking air conditioner according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of an operation control device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
At present, the operation control logic of a parking air conditioner is consistent with that of a conventional household air conditioner, the rotating speed of an inner fan and the rotating speed of an outer fan and the operating frequency of a compressor are controlled through the difference value of set temperature and actual temperature, when a vehicle is converted into a running state from a parking state or is converted into an accelerating running state from a uniform-speed running state, if the parking air conditioner runs all the time, the wind resistance of an outdoor fan is increased due to negative pressure caused by the fact that the vehicle advances, the load of an outdoor motor is increased, the conventional control method cannot identify the situation, and when the situation is serious, the outdoor motor is burnt due to overlarge current, and the parking air conditioner is caused to be in fault.
Based on this, the embodiment of the invention provides a control method of a parking air conditioner, an operation control device and an air conditioner, which can avoid the parking air conditioner from generating faults when an automobile runs to a certain extent and ensure the comfort of a user.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1, a first aspect embodiment of the present invention provides a control method of a parking air conditioner, including, but not limited to, step S100, step S200, step S300, step S400, and step S500.
Step S100, acquiring a first operation parameter and a second operation parameter at intervals of a first preset time interval, wherein the first operation parameter comprises compressor operation frequency, outdoor fan rotation speed, indoor fan rotation speed, outside temperature and inside temperature, and the second operation parameter comprises compressor exhaust temperature, condenser outlet temperature and complete machine current.
It is easy to understand that the operating parameters of the parking air conditioner can be monitored, the operating state of the parking air conditioner can be judged according to the first operating parameters, and the outdoor heat exchange state and the current change condition of the whole air conditioner can be judged according to the second operating parameters.
Step S200, judging whether the first operation parameter meets a first preset condition for determining that the parking air conditioner is in a stable operation state.
It should be noted that, when the parking air conditioner is in a stable operation state, the first operation parameter is kept stable, that is, the operation frequency of the compressor, the rotation speed of the outdoor fan, the rotation speed of the indoor fan, the temperature outside the vehicle and the temperature inside the vehicle are all kept stable, and the change of the current of the whole parking air conditioner is not caused.
And step S300, when the first preset condition is met, judging whether the second operation parameter meets a second preset condition for determining that the current of the whole machine is increased due to outdoor heat exchange variation. When the first operation parameter meets the first preset condition, the first operation parameter can be determined not to cause the current change of the whole air conditioner, the second preset condition is used for determining that the current of the whole air conditioner is increased due to the fact that outdoor heat exchange is poor, whether the second operation parameter meets the second preset condition or not is judged, and reference can be provided for the follow-up work of the parking air conditioner.
And S400, judging whether the temperature in the vehicle is greater than the set temperature or not when a second preset condition is met. The first operation parameter meets a first preset condition, namely the parking air conditioner is in a stable operation state, the first operation parameter is kept stable, and the change of the current of the whole parking air conditioner cannot be caused, so when the second operation parameter meets a second preset condition, the situation that the current of the whole parking air conditioner is increased due to the fact that outdoor heat exchange is poor can be determined, the work of the parking air conditioner should be adjusted in time, the current of the whole parking air conditioner is reduced, the current of the whole parking air conditioner is kept in a safe range, the outdoor motor is prevented from being burnt out due to overlarge current, the refrigerating capacity of the parking air conditioner can be reduced accordingly, if the temperature in the automobile does not reach the set temperature of a user at the moment, the reduction of the refrigerating capacity of the parking air conditioner can possibly influence the comfort level of the user, whether the temperature in the automobile is higher than the set temperature or not is judged, and reference can be provided for the work of the subsequent parking air conditioner.
Step S500, if the temperature in the vehicle is less than or equal to the set temperature, reducing the running frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine; if the temperature in the vehicle is higher than the set temperature, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine, and the rotating speed of the indoor fan is increased. If the temperature in the vehicle is lower than or equal to the set temperature, the temperature in the vehicle is low enough, the refrigerating capacity of the air conditioner is reduced, the comfort level of a user is not influenced, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine, the current of the whole machine is reduced, the current of the whole machine of the outdoor motor is prevented from being increased, and meanwhile, the electric quantity of a battery is saved to a certain degree; if the temperature in the car is higher than the set temperature, the refrigerating capacity of the parking air conditioner is reduced, the requirement of a user on the temperature in the car can be difficult to meet, in order to prevent an outdoor motor of the parking air conditioner from being burnt out due to overlarge current, the running frequency of a compressor and the rotating speed of an outdoor fan can be reduced according to the increasing degree of the current of the whole machine, the current of the whole machine is reduced, in order to guarantee the comfort level of the user, the rotating speed of the indoor fan is increased, the influence of the current of the whole machine on the refrigerating capacity of the air conditioner is reduced, the temperature in the car can be guaranteed to be continuously reduced to the set temperature, the requirement of the user is met, the reliability of a parking air conditioner system is improved, the comfort level of the user is guaranteed, and the use experience of the user is improved.
In one embodiment, the parking air conditioner is in a refrigeration mode, and a first operation parameter and a second operation parameter are obtained at intervals of a first preset time interval, wherein the first operation parameter comprises compressor operation frequency, outdoor fan rotating speed, indoor fan rotating speed, temperature outside a vehicle and temperature inside the vehicle, and the second operation parameter comprises compressor exhaust temperature, condenser outlet temperature and complete machine current. According to the first operation parameters at two adjacent moments, the change condition of the first operation parameter can be obtained, the change condition of the first operation parameter can reflect the operation state of the parking air conditioner, the first preset condition is used for determining that the parking air conditioner is in a stable operation state, whether the first operation parameter meets the first preset condition or not can be judged firstly, namely whether the parking air conditioner is in the stable operation state or not, if the air conditioner is not in the stable operation state, whether the first operation parameter meets the first preset condition or not can be continuously judged at intervals until the first operation parameter meets the first preset condition, namely, the parking air conditioner is in the stable operation state. If the first operation parameter meets a first preset condition, namely the parking air conditioner is in a stable operation state, the first operation parameter is kept stable at the moment, the change of the current of the whole parking air conditioner can be determined not to be influenced by the first operation parameter, and the outdoor heat exchange state of the parking air conditioner and the change condition of the current of the whole parking air conditioner can be judged according to the second operation parameter at two adjacent moments. The second preset condition is used for determining that the whole machine current is increased due to outdoor heat exchange variation, and judging whether the second operation parameter meets the second preset condition, namely whether the outdoor heat exchange of the parking air conditioner is varied and the whole machine current is increased. Whether the temperature in the automobile is higher than the set temperature or not is judged, the work of the parking air conditioner can be adjusted according to the temperature in the automobile and the set temperature, the parking air conditioner is protected, and meanwhile the comfort level of a user is guaranteed not to be reduced as much as possible. If the temperature in the automobile is less than or equal to the set temperature, the temperature in the automobile is proved to meet the requirement of a user, the refrigerating capacity of the parking air conditioner is reduced, the comfort level of the user is not affected, the running frequency of a compressor and the rotating speed of an outdoor fan are reduced according to the increase degree of the current of the whole machine, and therefore the current of the whole machine is reduced, the parking air conditioner is protected, and meanwhile the electric quantity of a battery is saved to a certain degree; if the temperature in the car is higher than the set temperature, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the current of the whole machine is reduced, and meanwhile the refrigerating capacity of the parking air conditioner is compensated, so that the temperature in the car can be reduced to the set temperature as soon as possible, and the comfort level of the users is guaranteed.
It should be noted that, when the first operating parameter does not satisfy the first preset condition, the re-determination is performed after a certain time interval until the parking air conditioner enters the stable operating state, in this embodiment, the re-determination time interval is not specifically limited, and the time interval may be set according to an actual condition as long as it can be ensured that the outdoor heat exchange degradation can be found in time subsequently.
It is easy to understand that the practical scenario corresponding to the increase of the current of the whole machine caused by the deterioration of the outdoor heat exchange of the parking air conditioner is that the parking air conditioner is in a stable operation state, and the vehicle is changed from a parking state to a running state or from a constant speed running state to acceleration running. At the moment, the wind resistance of the outdoor fan is increased due to the negative pressure caused by the forward movement of the vehicle, the load of the outdoor motor is increased, the outdoor motor is burnt due to overlarge current under serious conditions, and the current of the whole parking air conditioner needs to be reduced so as to avoid the occurrence of faults.
It will be appreciated that the compressor operating frequency and the outdoor fan speed are two relevant parameters in an air conditioner system, and that the compressor operating frequency is increased, and the outdoor fan speed is correspondingly increased in order to ensure coordinated operation of the air conditioner system, and likewise, the compressor operating frequency is decreased and the outdoor fan speed is correspondingly decreased in order to ensure balance of the air conditioner system.
It should be noted that, in order to compensate the cooling capacity, the rotation speed of the indoor fan may be adjusted to the maximum value, so as to decrease the temperature in the vehicle to the set temperature as soon as possible, but no matter how much the rotation speed of the indoor fan is increased, the rotation speed is within the protection range of the embodiment as long as the cooling capacity can be compensated.
It should be further noted that the application scenario of the control method for the parking air conditioner provided in this embodiment is not limited to the situation that the parking air conditioner is in the cooling mode, and the idea of the method may also be applied to the case that the parking air conditioner is in other modes, such as the heating mode. The method can judge the transition of the running state of the vehicle through the change of the state point of the parking air conditioner system, and judge the response according to the change condition of each operation parameter, thereby improving the reliability of the parking air conditioner and ensuring the comfort degree of a user.
Specifically, in one embodiment, the first preset condition includes: the running frequency of the compressor obtained at the current moment is equal to the running frequency of the compressor obtained at the last moment, the rotating speed of the outdoor fan obtained at the current moment is equal to the rotating speed of the outdoor fan obtained at the last moment, the rotating speed of the indoor fan obtained at the current moment is equal to the rotating speed of the indoor fan obtained at the last moment, the difference value between the temperature in the vehicle at the current moment and the temperature in the vehicle at the last moment is smaller than a first preset temperature difference value, and the difference value between the temperature outside the vehicle at the current moment and the temperature outside the vehicle at the last moment is smaller than the first preset temperature difference value. When the first operation parameter meets the first preset condition, the air conditioner can be determined to be in a stable operation state, and the change condition of the current of the whole machine is ensured not to be influenced by the first operation parameter. It is easy to understand that the determination that the first operation parameter satisfies the first preset condition may prepare for a subsequent determination that the current of the whole vehicle is increased due to the outdoor heat exchange variation of the parking air conditioner according to the second operation parameter, and an actual scene corresponding to the current increase due to the outdoor heat exchange variation of the parking air conditioner is that the vehicle is converted from the parking state to the driving state or from the uniform speed driving state to the acceleration driving state.
Specifically, in an embodiment, the second preset condition includes: the difference value between the compressor exhaust temperature at the current moment and the compressor exhaust temperature at the previous moment is larger than a second preset temperature difference value, the difference value between the condenser outlet temperature at the current moment and the condenser outlet temperature at the previous moment is larger than the second preset temperature difference value, and the difference value between the complete machine current at the current moment and the complete machine current at the previous moment is larger than the preset current difference value. If the difference value between the compressor exhaust temperature at the current moment and the compressor exhaust temperature at the previous moment is larger than the second preset temperature difference value, and the difference value between the condenser outlet temperature at the current moment and the condenser outlet temperature at the previous moment is larger than the second preset temperature difference value, the outdoor heat exchange variation of the parking air conditioner can be determined, the difference value between the complete machine current at the current moment and the complete machine current at the previous moment is larger than the preset current difference value, the complete machine current can be determined to be increased, and the situation that the complete machine current changes due to the first operation parameter can be eliminated because the parking air conditioner is in a stable operation state, so that the situation that the complete machine current is increased due to the outdoor heat exchange variation of the parking air conditioner can be determined, and the outdoor motor can be burnt due to overlarge current at the moment. It is easy to understand that the second operation parameter is determined to meet the second preset condition, reference can be provided for subsequent adjustment of the operation of the parking air conditioner, and the operation frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole air conditioner, so that the current of the whole air conditioner is reduced, and the outdoor motor of the parking air conditioner is prevented from being burnt due to overlarge current.
Specifically, in one embodiment, the method for reducing the operating frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine comprises the following steps: and reducing the running frequency of the compressor and the rotating speed of the outdoor fan to 1/m, wherein m is the ratio of the current of the whole machine at the current moment to the current of the whole machine at the previous moment. The larger the increase amplitude of the current of the whole air conditioner is, the larger the reduction amplitude of the running frequency of the compressor and the rotating speed of the outdoor fan is, so that the current of the whole air conditioner can be kept in a certain range, the outdoor motor of the parking air conditioner is prevented from being burnt due to overlarge current, the reliability of the parking air conditioner is improved, and meanwhile, the electric quantity of a battery is saved to a certain degree.
It should be noted that, when the increase of the current of the whole air conditioner is too large, and the operation frequency of the compressor and the rotation speed of the outdoor fan need to be reduced by a large margin, the load increase of the outdoor motor is serious, and it may be difficult to ensure that the outdoor motor is not burned down by reducing the operation frequency of the compressor and the rotation speed of the outdoor fan, or the parking air conditioner may have the condition that the operation frequency of the compressor and the rotation speed of the outdoor fan are both too low, and the parking air conditioner may not work normally, for example, the refrigeration effect cannot be achieved in the refrigeration mode.
Referring to fig. 2, a control method of a parking air conditioner according to another embodiment of the present invention further includes step S510.
And step S510, when the current increase amplitude of the whole machine is too large, a fault warning is sent out.
In an embodiment, under the condition that the first operation parameter meets a first preset condition and the second operation parameter meets a second preset condition, the increase degree of the current of the whole machine is judged, and if the increase amplitude of the current of the whole machine is too large, a fault warning is sent out. When the outdoor heat exchange variation of the parking air conditioner is poor and the increase amplitude of the whole machine current is too large, a fault warning is sent out, a user can be fed back, the user is reminded that the increase amplitude of the whole machine current of the parking air conditioner is too large, the fault of the parking air conditioner can be caused, the user can automatically control the operation of the parking air conditioner according to the received feedback, for example, the set temperature is actively increased or the parking air conditioner is closed, and the fault of the parking air conditioner is prevented.
Specifically, in an embodiment, if a ratio of the current of the complete machine to the current of the complete machine at the previous time is greater than a preset multiple, it is determined that the increase amplitude of the current of the complete machine is too large.
It should be noted that the preset multiple may be set according to an actual situation, and in this embodiment, a specific numerical value of the preset multiple is not limited, and when a ratio of the current of the complete machine at the current moment to the current of the complete machine at the previous moment is greater than the preset multiple, a fault warning is performed, which may prompt a user that the amplitude of the current of the complete machine is too large, and may cause a fault of the parking air conditioner, so that the user may make a response in advance or make a corresponding preparation.
Specifically, in one embodiment, the fault alert includes beeping and/or displaying a fault code. The method can remind the user that the current of the whole machine is increased too much by means of beeping and/or displaying a fault code, so that the user can prepare or perform corresponding operation to prevent an outdoor motor of the parking air conditioner from being burnt out due to the excessive current, such as turning off the parking air conditioner.
It should be noted that the fault warning and the user reminding can be performed in other manners, for example, corresponding voice is played, or corresponding indicator lights are flashed, only one manner can be used for warning, or a combination of several manners can be used for warning, as long as the warning effect can be achieved, the user can be reminded that the current amplification of the whole parking air conditioner is too large, and the fault is likely to occur, and the protection range of the embodiment of the present invention is included.
It is easy to understand that the buzzer can give out buzzing sound, the display screen can display fault codes, the voice module can realize voice broadcast, the indicator light can flash according to preset programs, and the related technology for realizing fault warning is easy to realize and obvious to the technical personnel in the field.
Referring to fig. 3, a control method of a parking air conditioner according to another embodiment of the present invention further includes step S520.
And step S520, after a fault warning is sent and a second preset time interval is waited, controlling the parking air conditioner to be shut down. When the current increase amplitude of the whole parking air conditioner is too large, the load of an outdoor motor is also large, the possibility that the outdoor motor is burnt is high, the operation speed of a compressor and the rotating speed of an outdoor fan are reduced possibly to be insufficient to keep the current of the whole parking air conditioner in a safe range, and the safety of the outdoor motor cannot be guaranteed, or when the current increase amplitude of the whole parking air conditioner is too large, so that the operation speed of the compressor and the rotating speed of the outdoor fan are reduced too much to cause the parking air conditioner to be incapable of normally operating, a fault warning is sent out and the parking air conditioner is controlled to be shut down after waiting for a second preset time interval, wherein the fault warning is used for reminding a user that the current increase amplitude of the whole parking air conditioner is too large, the air conditioner may break down, and the parking air conditioner is controlled to be shut down to guarantee the safety of the parking air conditioner under the condition that the risk of the outdoor motor breaking down is high.
It should be noted that the second preset time interval may be 30s or 60s, and the embodiment does not specifically limit the second preset time interval, as long as the parking air conditioner can be turned off in time to reduce the possibility of failure.
It should be further noted that, if the parking air conditioner is controlled to be turned off, the fault warning may further include a reminding message for reminding a user that the parking air conditioner is to be turned off, so as to prevent the user from finding out that the parking air conditioner is turned off without any preparation and mistakenly considering that the parking air conditioner has a fault.
Referring to fig. 4, another embodiment of the present invention provides a method for controlling a parking air conditioner, and fig. 4 is a schematic diagram illustrating a complete detailed process flow of the method for controlling a parking air conditioner according to another embodiment of the present invention, in which a first preset temperature difference Δ T1, a second preset temperature difference Δ T2, a preset current difference Δ L, and a preset multiple n are set according to actual conditions, the parking air conditioner is in a cooling mode, and an operating frequency F of a compressor is obtained at intervals of a first preset time intervalrAnd the rotating speed P of the outdoor fanrIndoor fan rotating speed irTemperature T outside vehiclewTemperature T in the vehiclenCompressor discharge temperature TPCondenser outlet temperature TLAnd current D of the whole machineLWherein compressor operating frequency, outdoor fan rotational speed, indoor fan rotational speed, the outside temperature of car and the interior temperature of car are first operating parameter, and compressor exhaust temperature, condenser exit temperature and complete machine electric current are second operating parameter, judge at first whether first operating parameter satisfies first preset condition, and first preset condition includes: the running frequency of the compressor obtained at the current moment is equal to the running frequency of the compressor obtained at the last moment, the rotating speed of the outdoor fan obtained at the current moment is equal to the rotating speed of the outdoor fan obtained at the last moment, the rotating speed of the indoor fan obtained at the current moment is equal to the rotating speed of the indoor fan obtained at the last moment, the difference value between the temperature in the vehicle at the current moment and the temperature in the vehicle at the last moment is smaller than a first preset temperature difference value, and the difference value between the temperature outside the vehicle at the current moment and the temperature outside the vehicle at the last moment is smaller than the first preset temperature difference value. The first preset condition can be used for determining that the parking air conditioner is in a stable operation state, when the parking air conditioner is in the stable operation state, the change of the current of the whole machine can be determined not to be influenced by the first operation parameter because the first operation parameter is kept stable, if the first operation parameter does not meet the first preset condition, whether the first operation parameter meets the first preset condition or not is continuously judged after a certain time until the parking air conditioner enters the stable operation state; if the first transportation isIf the row parameter meets the first preset condition, judging whether the second operation parameter meets a second preset condition, wherein the second preset condition comprises the following steps: the difference value between the compressor exhaust temperature at the current moment and the compressor exhaust temperature at the previous moment is larger than a second preset temperature difference value, the difference value between the condenser outlet temperature at the current moment and the condenser outlet temperature at the previous moment is larger than the second preset temperature difference value, and the difference value between the complete machine current at the current moment and the complete machine current at the previous moment is larger than the preset current difference value. The parking air conditioner is in a stable operation state, the first operation parameter is stable, and the current change of the whole machine cannot be caused, so that the second preset condition can be used for determining that the current of the whole machine is increased due to the outdoor heat exchange variation, if the second operation parameter does not meet the second preset condition, whether the first operation parameter meets the first preset condition or not is continuously judged, and whether the current of the whole machine is increased due to the outdoor heat exchange variation or not can be monitored; if the second operation parameter meets a second preset condition, the corresponding actual scene is that the vehicle is converted from a parking state to a running state or from a constant-speed running state to an accelerated running state, and at the moment, the wind resistance of the outdoor fan is increased, the load of the outdoor motor is increased, and the outdoor motor is burnt due to overlarge current in serious cases, so that the fault of the parking air conditioner is caused; judging whether the ratio of the current of the complete machine at the current moment to the current of the complete machine at the previous moment is greater than a preset multiple, if the ratio of the current of the complete machine at the current moment to the current of the complete machine at the previous moment is greater than the preset multiple, the current of the complete machine is amplified excessively, the load of an outdoor motor is increased seriously, and the outdoor motor is possibly burnt; sounding, displaying a fault code, and controlling the parking air conditioner to be shut down after 60s so as to reduce the possibility of the parking air conditioner failing; if the ratio of the current of the whole machine at the current moment to the current of the whole machine at the previous moment is smaller than or equal to a preset multiple, the amplification of the current of the whole machine is still in a controllable range, the amplification of the load of an outdoor motor is smaller, the possibility of being burnt is smaller, the current of the whole machine can be reduced by adjusting the work of the parking air conditioner, the current of the whole machine is kept in a safe range, and the normal operation of the parking air conditioner is kept as far as possible under the safe condition; judging whether the temperature in the vehicle is higher than a set temperature or not, and if the temperature in the vehicle is lower than or equal to the set temperatureSetting the temperature, namely the temperature in the automobile meets the requirement of a user, and the reduction of the refrigerating capacity of the parking air conditioner does not influence the comfort level of the user, so that the running frequency of the compressor and the rotating speed of an outdoor fan are both reduced to 1/m, the outdoor motor is prevented from being burnt due to overlarge current, and the electric quantity of a battery is saved to a certain extent, wherein m is the ratio of the current of the whole machine to the current of the whole machine at the last moment; if the temperature in the automobile is higher than the set temperature, the temperature in the automobile does not meet the requirements of users, the reduction of the refrigerating capacity of the parking air conditioner can affect the comfort level of the users, in order to prevent the outdoor motor from being burnt out and reduce the temperature in the automobile to the set temperature as soon as possible, the running frequency of the compressor and the rotating speed of the outdoor fan are both reduced to 1/m, the rotating speed of the indoor fan is adjusted to the maximum value, the refrigerating capacity of the parking air conditioner can be compensated while the outdoor motor is prevented from being burnt out due to overlarge current, and the requirements of the users on the temperature in the automobile can be met as soon as possible. The control method of the parking air conditioner provided by the embodiment can judge that the driving state of the vehicle is changed in the use environment of the parking air conditioner, and judge and respond according to the change of the system state point of the air conditioner, thereby improving the operation reliability of the parking air conditioner, and correspond to different actual scenes according to the difference of the current increasing degree of the whole machine, when the vehicle runs, the outdoor motor of the parking air conditioner is prevented from being burnt due to overlarge current to a certain extent, the reliability of the parking air conditioner system is improved, the electric quantity of a battery is saved, the comfort level of a user is ensured as much as possible, and the use experience of the user is improved.
Referring to fig. 5, an embodiment of the present invention further provides an operation control apparatus 500, where the operation control apparatus 500 includes at least one control processor 510 and a memory 520 for communication connection with the at least one control processor 510; the memory 520 stores instructions executable by the at least one control processor 510, the instructions being executable by the at least one control processor 510 to enable the at least one control processor 510 to perform the control method of the parking air conditioner as in any one of the above embodiments. According to the control method of the parking air conditioner, when the parking air conditioner is in a refrigeration mode, a first operation parameter and a second operation parameter are obtained at intervals of a first preset time interval, the operation parameter of the parking air conditioner can be monitored, the operation state of the parking air conditioner can be judged according to the first operation parameter, the outdoor heat exchange state and the whole machine current change condition can be judged according to the second operation parameter, when the first operation parameter meets a first preset condition, the parking air conditioner can be determined to be in a stable operation state, at the moment, the first operation parameter can not cause the whole machine current change, when the second operation parameter meets a second preset condition, the whole machine current increase caused by the outdoor heat exchange variation can be determined, in order to prevent an outdoor motor of the air conditioner from being burnt due to overlarge current, the operation frequency of a compressor and the rotating speed of an outdoor fan can be reduced according to the increase degree of the whole machine current so as to reduce the whole machine current, but the cooling capacity of the parking air conditioner is also decreased. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air-conditioning system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
An embodiment of the present invention further provides an air conditioner, which includes the operation control device according to the above embodiment, and is capable of implementing the control method of the parking air conditioner according to any one of the above embodiments. According to the control method of the parking air conditioner, when the parking air conditioner is in a refrigeration mode, a first operation parameter and a second operation parameter are obtained at intervals of a first preset time interval, the operation parameter of the parking air conditioner can be monitored, the operation state of the parking air conditioner can be judged according to the first operation parameter, the outdoor heat exchange state and the whole machine current change condition can be judged according to the second operation parameter, when the first operation parameter meets a first preset condition, the parking air conditioner can be determined to be in a stable operation state, at the moment, the first operation parameter can not cause the whole machine current change, when the second operation parameter meets a second preset condition, the whole machine current increase caused by the outdoor heat exchange variation can be determined, in order to prevent an outdoor motor of the air conditioner from being burnt due to overlarge current, the operation frequency of a compressor and the rotating speed of an outdoor fan can be reduced according to the increase degree of the whole machine current so as to reduce the whole machine current, but the cooling capacity of the parking air conditioner is also decreased. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air-conditioning system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
Embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform a control method of a parking air conditioner as in any one of the above embodiments. According to the control method of the parking air conditioner, when the parking air conditioner is in a refrigeration mode, a first operation parameter and a second operation parameter are obtained at intervals of a first preset time interval, the operation parameter of the parking air conditioner can be monitored, the operation state of the parking air conditioner can be judged according to the first operation parameter, the outdoor heat exchange state and the whole machine current change condition can be judged according to the second operation parameter, when the first operation parameter meets a first preset condition, the parking air conditioner can be determined to be in a stable operation state, at the moment, the first operation parameter can not cause the whole machine current change, when the second operation parameter meets a second preset condition, the whole machine current increase caused by the outdoor heat exchange variation can be determined, in order to prevent an outdoor motor of the air conditioner from being burnt due to overlarge current, the operation frequency of a compressor and the rotating speed of an outdoor fan can be reduced according to the increase degree of the whole machine current so as to reduce the whole machine current, but the cooling capacity of the parking air conditioner is also decreased. If the temperature in the automobile is lower than or equal to the set temperature, the reduction of the refrigerating capacity does not affect the comfort level of a user, the running frequency of the compressor and the rotating speed of the outdoor fan are reduced according to the increase degree of the current of the whole machine so as to reduce the current of the whole machine of the parking air conditioner, and the outdoor motor of the air conditioner can be prevented from being burnt due to overlarge current; if the temperature in the car is still higher than the set temperature at the moment, the temperature in the car does not meet the requirements of users, the running frequency of the compressor and the rotating speed of the outdoor fan can be reduced according to the increase degree of the current of the whole machine, the rotating speed of the indoor fan is increased, the outdoor motor is prevented from being burnt due to the overlarge current, the decreased refrigerating capacity is compensated, the reliability of the parking air-conditioning system is improved, the comfort level of the users is guaranteed, and the user experience is improved.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media or non-transitory media and communication media or transitory media. The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks, DVD, or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (11)
1. A control method of a parking air conditioner, comprising:
acquiring a first operation parameter and a second operation parameter at intervals of a first preset time interval, wherein the first operation parameter comprises compressor operation frequency, outdoor fan rotating speed, indoor fan rotating speed, outside temperature and inside temperature, and the second operation parameter comprises compressor exhaust temperature, condenser outlet temperature and complete machine current;
judging whether the first operation parameter meets a first preset condition for determining that the parking air conditioner is in a stable operation state or not;
when the first preset condition is met, judging whether the second operation parameter meets a second preset condition for determining that the current of the whole machine is increased due to outdoor heat exchange variation;
when the second preset condition is met, judging whether the temperature in the vehicle is higher than a set temperature;
if the temperature in the vehicle is less than or equal to the set temperature, reducing the running frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine; and if the temperature in the vehicle is higher than the set temperature, reducing the running frequency of the compressor and the rotating speed of the outdoor fan according to the increase degree of the current of the whole machine, and increasing the rotating speed of the indoor fan.
2. The control method according to claim 1, characterized in that the first preset condition includes:
Fr-Fr-1＝0
Pr-Pr-1＝0
ir-ir-1＝0
Tn-Tn-1＜△T1
Tw-Tw-1＜△T1
wherein, FrFor the operating frequency of the compressor at the present moment, Fr-1For the operating frequency, P, of the compressor at the previous momentrIs the outdoor fan speed, P, at the current momentr-1Is the last moment outdoor fan speed, irIs the indoor fan speed i at the current momentr-1At the last moment, the rotating speed of the indoor fan, TnIs the temperature in the vehicle, T, at the present momentn-1Is the temperature in the vehicle, T, at the previous momentwIs the outside temperature of the vehicle at the present moment, Tw-1The temperature outside the vehicle at the previous moment is shown, and the delta T1 is a first preset temperature difference value.
3. The control method according to claim 1, characterized in that the second preset condition includes:
TP-TP-1＞△T2
TL-TL-1＞△T2
DL-DL-1＞△L
wherein, TPIs the compressor discharge temperature at the present moment, TP-1Is the last moment compressor discharge temperature, TLIs the condenser outlet temperature, T, at the present momentL-1The condenser outlet temperature at the previous moment, DLFor the current of the whole machine at the present moment, DL-1The current of the whole machine at the previous moment, Δ T2 is a second preset temperature difference value, and Δ L is a preset current difference value.
4. The control method according to claim 1, wherein when the overall current increase amplitude is too large, a fault warning is sent out.
5. According to claim 4The control method is characterized in that if the current of the whole machine meets the condition DL/DL-1N, determining that the current increase amplitude of the whole machine is too large, wherein DLFor the current of the whole machine at the present moment, DL-1The current of the whole machine at the last moment is n, and n is a preset multiple.
6. The control method according to claim 4, wherein the fault alert comprises sounding a buzzer and/or displaying a fault code.
7. The control method according to claim 4, wherein the parking air conditioner is controlled to be turned off after a fault warning is issued and a second preset time interval is waited.
8. The control method according to claim 1, wherein the reducing the compressor operation frequency and the outdoor fan rotation speed according to the increase degree of the whole machine current includes:
Fr＝Fr/m
Pr＝Pr/m
wherein, FrFor the operating frequency of the compressor, PrThe rotating speed of the outdoor fan is defined, and m is the ratio of the current of the whole machine at the current moment to the current of the whole machine at the previous moment.
9. An operation control device comprising at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform a method of controlling a parking air conditioner as claimed in any one of claims 1 to 8.
10. An air conditioner characterized by comprising the operation control device according to claim 9.
11. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method of controlling a parking air conditioner according to any one of claims 1 to 8.
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| CN111023499A (en) * | 2019-12-18 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Air conditioner operation control method, device, equipment and storage medium |
| CN111397089A (en) * | 2020-03-26 | 2020-07-10 | 广东美的制冷设备有限公司 | Air conditioner detection method, air conditioner and computer readable storage medium |
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