CN111942101A - Control method of automobile air conditioner and automobile air conditioning system using same - Google Patents
Control method of automobile air conditioner and automobile air conditioning system using same Download PDFInfo
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- CN111942101A CN111942101A CN202010669630.3A CN202010669630A CN111942101A CN 111942101 A CN111942101 A CN 111942101A CN 202010669630 A CN202010669630 A CN 202010669630A CN 111942101 A CN111942101 A CN 111942101A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 86
- 238000005057 refrigeration Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a control method of an automobile air conditioner and an automobile air conditioning system using the same. The control method comprises the following steps: responding to the received air conditioner starting signal; judging whether the air conditioner is started or not according to the electric quantity of the automobile battery and the external environment temperature; after the air conditioner is started, responding to a first-level manual setting instruction or a first-level intelligent setting instruction of a user, and operating the air conditioner in an air supply mode, a refrigeration mode or a heating mode, wherein the first-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration decision point and the temperature of a heating decision point; responding to a second-level manual setting instruction or a second-level intelligent setting instruction of a user, and enabling the air conditioner to operate according to a preset working gear, wherein the second-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration judging point and the temperature of a heating judging point.
Description
Technical Field
The invention relates to the field of automobile air conditioners, in particular to a control method of an automobile air conditioner and an automobile air conditioning system using the same.
Background
Traditional tractor air conditioning system is complicated relatively, and air conditioning system also has a plurality ofly, and belt pulley drive compressor's refrigeration and heating system, vehicle when stopping refrigeration system, engine waste heat utilization heating system also can not be perfectly suitable for air conditioning system to work when the vehicle is traveling, often can make user experience feel reduce, the convenience descends. With the development of economy and technology, tractors have irreplaceable effects in transportation, the requirements of people on the comfort and convenience of the temperature in a vehicle are improved, the traveling and parking integrated tractor air conditioning system becomes the mainstream development in the future, and meanwhile, a corresponding convenient control method is also the inevitable trend of future development.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling an automotive air conditioner and an automotive air conditioning system using the same, so as to solve the above problems, and specifically:
the invention discloses a control method of an automobile air conditioner in a first aspect, which comprises the following steps:
responding to the received air conditioner starting instruction;
judging whether the air conditioner is started or not according to the electric quantity of the automobile battery and the external environment temperature;
after the air conditioner is started, responding to a first-level manual setting instruction or a first-level intelligent setting instruction of a user, and operating the air conditioner in an air supply mode, a refrigeration mode or a heating mode, wherein the first-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration decision point and the temperature of a heating decision point;
responding to a second-level manual setting instruction or a second-level intelligent setting instruction of a user, and enabling the air conditioner to operate according to a preset working gear, wherein the second-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration judging point and the temperature of a heating judging point.
Optionally, the determination mode made by the primary intelligent setting instruction based on the external environment temperature, the refrigeration determination point temperature and the heating determination point temperature is as follows: when the ambient temperature outside the vehicle is more than or equal to the temperature of the refrigeration judging point, the air conditioner operates a refrigeration mode; when the temperature of the heating judgment point is less than the temperature of the environment outside the vehicle and less than the temperature of the refrigerating judgment point, the air conditioner operates an air supply mode; and when the environment temperature outside the vehicle is less than or equal to the heating judgment point temperature, the air conditioner operates in a heating mode.
Optionally, the process of obtaining the primary intelligent setting instruction further includes: and correcting the primary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of the air conditioner executing an air supply mode, a refrigeration mode and a heating mode.
Optionally, the preset operating range includes: a default mode, a set mode, a power mode, and an energy saving mode.
Optionally, the process of obtaining the secondary intelligent setting instruction further includes: and correcting the secondary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of executing a default mode, a setting mode, a powerful mode and an energy-saving mode by the air conditioner.
Optionally, judge according to car battery power and the ambient temperature outside the car whether the air conditioner starts, include:
comparing the current automobile battery electric quantity with a battery electric quantity warning value, and when the current automobile battery electric quantity is smaller than the battery electric quantity warning value, the air conditioner is not started; when the current automobile battery electric quantity is larger than or equal to the battery electric quantity warning value, executing the following process;
judging whether the environment temperature outside the vehicle is between the highest operation temperature of the air conditioning system and the lowest operation temperature of the air conditioning system, and if not, not starting the air conditioner; and if so, starting the air conditioner.
Optionally, when the air conditioner operates in the heating mode, the auxiliary heating temperature of the auxiliary heating system in the air conditioner is monitored, and when the auxiliary heating temperature is greater than the auxiliary heating system operating temperature and greater than the ambient temperature in the vehicle, the auxiliary heating system is used for heating.
Optionally, the control method further includes: responding to a manual stop instruction or an intelligent stop instruction of a user, stopping the operation of the air conditioner,
the intelligent stop instruction is obtained by comparing the electric quantity of the automobile battery with a battery electric quantity warning value, and when the current electric quantity of the automobile battery is smaller than the battery electric quantity warning value, the air conditioner stops running.
In a second aspect, the invention discloses a vehicle air conditioning system, which uses any one of the control methods of the vehicle air conditioner.
Optionally, the system comprises a heat pump system and an auxiliary heating system, and the heat pump system and the auxiliary heating system are thermally coupled together through an in-vehicle heat exchanger of the heat pump system and an auxiliary heat exchanger of the auxiliary heating system.
Optionally, a heat pump system is included, the heat pump system including: the heat exchanger in the vehicle, the heat exchanger outside the vehicle, a throttle valve, a compressor, a gas-liquid separator, an inner fan and an outer fan, wherein
The first end of the heat exchanger inside the vehicle and the first end of the heat exchanger outside the vehicle are connected through a first branch, and the throttle valve is arranged in the first branch;
a second branch and a third branch are arranged between the second end of the heat exchanger inside the vehicle and the second end of the heat exchanger outside the vehicle in parallel, wherein a first electromagnetic valve and a second electromagnetic valve are arranged on the second branch in series; a three-way valve is arranged on the third branch; a fourth branch is formed between the second branch and the third branch, a first end of the fourth branch is connected to the second branch and is positioned between the first electromagnetic valve and the second electromagnetic valve, and a second end of the fourth branch is connected to the three-way valve;
the gas-liquid separator and the compressor are sequentially arranged on the fourth branch from the first end to the second end of the fourth branch; the inner fan is arranged on one side of the heat exchanger inside the vehicle, and the outer fan is arranged on one side of the heat exchanger outside the vehicle.
Optionally, the system further comprises an auxiliary heating system, the auxiliary heating system comprises an engine heat exchange box, a water pump and an auxiliary heat exchanger which are sequentially connected to form a circulation loop,
the auxiliary heat exchanger is arranged on one side of the heat exchanger in the vehicle, which is far away from the inner fan; the engine heat exchange box is used for absorbing heat emitted by an automobile engine; the water pump is used for providing power for the secondary refrigerant in the circulating loop.
Has the advantages that:
the invention integrates a plurality of air conditioning control systems of the traditional tractor by improving the control method of the air conditioning system: the cost is saved; the operation convenience is improved; the user experience is improved.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic flow chart illustrating an air conditioner control method according to an embodiment of the present invention;
FIG. 2 shows a schematic view of an air conditioning system according to an embodiment of the present invention;
fig. 3 is a schematic control flow diagram of an air conditioning system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The tractor air conditioning system is controlled by improving the control method of the automobile air conditioner and the automobile air conditioning system and comprehensively utilizing the sensor signals inside the automobile, the sensor signals outside the automobile, the battery electric quantity sensing signals, the hand operator and the remote controller sensing signals, the auxiliary heat temperature sensing signals, the heat pump air conditioning system and the auxiliary heat system. The control method provided by the invention effectively controls the whole system through a plurality of sensing signal feedbacks, and improves the high efficiency and convenience of system control, and the energy conservation and comfort of the system in a plurality of modes and a plurality of adjustment modes. The intelligent air conditioning system is provided with an intelligent mode, and intelligent regulation and control of the whole air conditioning system can be realized through feedback signals of the sensor.
To further illustrate the technical solution of the present invention, the following specific examples are provided as shown in fig. 1 to 3.
Example 1
As shown in fig. 1, in the present embodiment, there is provided a control method of an air conditioner for a vehicle, including: responding to the received air conditioner starting signal; judging whether the air conditioner is started or not according to the electric quantity of the automobile battery and the external environment temperature; after the air conditioner is started, responding to a first-level manual setting instruction or a first-level intelligent setting instruction of a user, and operating the air conditioner in an air supply mode, a refrigeration mode or a heating mode, wherein the first-level intelligent setting instruction is made based on the outside environment temperature, the refrigeration decision point temperature and the heating decision point temperature; and responding to a second-level manual setting instruction or a second-level intelligent setting instruction of a user, and operating the air conditioner according to a preset working gear, wherein the second-level intelligent setting instruction is made based on the external environment temperature, the refrigeration judging point temperature and the heating judging point temperature. The temperature of the refrigeration judging point is a critical point when the set air conditioner is in a refrigeration mode; heating decision point the critical point when the air conditioner is in the heating mode.
In this embodiment, the determination manner of the primary intelligent setting instruction based on the outside environment temperature, the cooling determination point temperature, and the heating determination point temperature is as follows: when the ambient temperature outside the automobile is more than or equal to the temperature of the refrigeration judging point, the air conditioner operates a refrigeration mode; when the temperature of the heating judgment point is less than the temperature of the environment outside the vehicle and less than the temperature of the refrigerating judgment point, the air conditioner operates an air supply mode; and when the ambient temperature outside the vehicle is less than or equal to the heating judgment point temperature, the air conditioner operates in a heating mode.
Further, the process of obtaining the primary intelligent setting instruction further comprises: and correcting the primary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of the air conditioner in executing an air supply mode, a refrigeration mode and a heating mode. According to the mode, the method can be optimized according to the ambient temperature outside and inside the automobile and the use habit of the user, so that the user experience effect is improved.
Correspondingly, the primary manual setting instruction is based on manual selection of a user, if the user does not have any operation within a certain time after the air conditioner is started, intelligent judgment is executed, and a corresponding primary mode (refrigeration, heating, air supply and the like) is executed in response to the acquired primary intelligent setting instruction. After the corresponding mode judgment is made based on the intelligence, the air conditioner operates, the primary manual setting instruction can be generated according to the operation of a user in the operation process of the air conditioner, and after the primary manual setting instruction makes the control adjustment of the air conditioner, the intelligent judgment of the primary mode is not executed.
In some optional manners, the preset operating range includes: a default mode, a set mode, a power mode, and an energy saving mode. Further, the process of obtaining the secondary intelligent setting instruction further comprises: and correcting the secondary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of executing a default mode, a setting mode, a powerful mode and an energy-saving mode by the air conditioner.
In this embodiment, the second-level manual setting instruction and the second-level intelligent setting instruction provide information for determining, judging and executing the second-level operation mode of the system, and the second-level mode of the system corresponds to a corresponding preset gear, that is: the method comprises two-stage modes of energy saving, strength, setting, default and the like; the manual setting is directly communicated with the instruction, and the secondary intelligent setting instruction is made based on the ambient temperature inside and outside the vehicle. Such as: when the return air temperature is close to the default preset temperature of the system, the system enters an energy-saving mode; when the difference between the return air temperature and the default preset temperature of the system is large, the system enters a powerful mode and the like.
Correspondingly, the second-level manual setting instruction is based on manual selection of a user, for example, after the air conditioner is started and the selection of the first-level mode (refrigeration, heating, air supply and the like) is executed, if the user does not have any operation within a certain time, intelligent judgment is executed, and the corresponding second-level mode is executed in response to the obtained second-level intelligent setting instruction. After the corresponding mode judgment is made based on the intelligence, the air conditioner operates, a secondary manual setting instruction can be generated according to the operation of a user in the operation process of the air conditioner, and after the control adjustment of the air conditioner is made by the secondary manual setting instruction, the intelligent judgment of the secondary mode is not executed.
In this embodiment, judge according to car battery power and the ambient temperature outside the car whether the air conditioner starts, include: comparing the current electric quantity of the automobile battery with a battery electric quantity warning value, and if the current electric quantity of the automobile battery is smaller than the battery electric quantity warning value, not starting the air conditioner; when the current electric quantity of the automobile battery is larger than or equal to the battery electric quantity warning value, executing the following process; judging whether the ambient temperature outside the vehicle is between the highest operation temperature of the air conditioning system and the lowest operation temperature of the air conditioning system, and if not, not starting the air conditioner; and if so, starting the air conditioner.
In some implementations, the auxiliary heating temperature of the auxiliary heating system in the air conditioner is monitored when the air conditioner operates in the heating mode, and the auxiliary heating system is used for heating when the auxiliary heating temperature > the auxiliary heating system operating temperature > the ambient temperature in the vehicle.
In addition, the air conditioner can be intelligently set and controlled to stop. Correspondingly, the control method further comprises the following steps: and responding to a manual stop instruction or an intelligent stop instruction of a user, and stopping the operation of the air conditioner. Preferably, the intelligent stop instruction is obtained by comparing the electric quantity of the automobile battery with a battery electric quantity warning value, and if the current electric quantity of the automobile battery is less than the battery electric quantity warning value, the air conditioner stops running.
Example 2
Based on embodiment 1, in the present embodiment, there is provided a vehicle air conditioning system using the control method of the vehicle air conditioner of any one of embodiments 1.
Further, the vehicle air conditioning system in the embodiment includes a heat pump system and an auxiliary heating system, and the heat pump system and the auxiliary heating system are thermally coupled together through an in-vehicle heat exchanger of the heat pump system and an auxiliary heat exchanger of the auxiliary heating system. This method is also applicable to an air conditioning system provided with only a heat pump system.
Specifically, when the heat pump system is provided in the air conditioning system, the heat pump system includes: the system comprises an in-vehicle heat exchanger, an out-vehicle heat exchanger, a throttle valve, a compressor, a gas-liquid separator, an inner fan and an outer fan.
The first end of the heat exchanger inside the automobile and the first end of the heat exchanger outside the automobile are connected through a first branch, and the throttle valve is arranged in the first branch; a second branch and a third branch are arranged between the second end of the heat exchanger inside the vehicle and the second end of the heat exchanger outside the vehicle in parallel, wherein the second branch is provided with a first electromagnetic valve and a second electromagnetic valve in series; a three-way valve is arranged on the third branch; a fourth branch is formed between the second branch and the third branch, the first end of the fourth branch is connected to the second branch and is positioned between the first electromagnetic valve and the second electromagnetic valve, and the second end of the fourth branch is connected to the three-way valve; the gas-liquid separator and the compressor are sequentially arranged on the fourth branch from the first end to the second end of the fourth branch; the inner fan is arranged on one side of the heat exchanger in the vehicle, and the outer fan is arranged on one side of the heat exchanger outside the vehicle.
Auxiliary heating system: for an engine waste heat utilization system, the waste heat of the engine is recovered by using secondary refrigerant, and the heat is transferred to an auxiliary heat system heat exchanger in the vehicle through a water pump, so that the heating in the vehicle can be realized. When the air conditioning system is also provided with an auxiliary heating system, the auxiliary heating system can utilize the waste heat of the engine. Optionally, the auxiliary heating system comprises an engine heat exchange box, a water pump and an auxiliary heat exchanger which are sequentially connected to form a circulation loop, wherein the auxiliary heat exchanger is arranged on one side of the heat exchanger in the vehicle, which is far away from the inner fan; the engine heat exchange box is used for absorbing heat emitted by an automobile engine; the water pump is used for providing power for the secondary refrigerant in the circulating loop.
The air conditioning system in the embodiment realizes the control of the air conditioning system of the tractor by comprehensively utilizing the remote control and manual operator sensor, the in-vehicle temperature sensor, the out-vehicle temperature sensor, the battery electric quantity sensor, the auxiliary heating temperature sensor, the heat pump air conditioning system and the auxiliary heating system. And the remote control and handsheet device sensor is used for sending a starting signal, a control signal and the like of the air conditioner of the whole vehicle. The battery electric quantity sensor is used for detecting the real-time electric quantity of the vehicle-mounted battery; the auxiliary heating temperature sensor is used for detecting the temperature of the heat exchange box of the engine in the auxiliary heating system at the current moment; the vehicle-exterior temperature sensor is used for detecting the environment temperature at the current time outside the vehicle; the in-vehicle temperature sensor is used for detecting the current temperature in the vehicle. The temperature in the vehicle can be adjusted when the vehicle runs and stops, the heat pump air conditioning system can refrigerate and heat, and the waste heat (waste heat) of the engine can be utilized to heat in the running process of the vehicle. The whole system is effectively controlled through a plurality of sensing signal feedbacks, and the high efficiency and convenience of system control and the energy conservation and comfort of the system are improved through a plurality of modes and a plurality of adjusting modes.
As shown in fig. 2, the interior heat exchanger 6 and the auxiliary heat exchanger 11 are thermally coupled in the HVAC7, an exhaust port of the compressor 1 is connected to an a3 end of the three-way valve 2, a b3 end of the three-way valve is communicated to the interior heat exchanger 6 and one end of the second electromagnetic valve 920, a c3 end of the three-way valve is communicated to the exterior heat exchanger 3 and one end of the first electromagnetic valve 910, the other end of the interior heat exchanger 6 is connected to one end of the throttle valve 5, the other end of the exterior heat exchanger 3 is connected to the other end of the throttle valve 5, the other end of the second electromagnetic valve 920 and the other end of the first electromagnetic valve 910 are connected to one end of the vapor-liquid separator 10, and.
One end of the water pump 12 is connected with one end of the engine heat exchange box 13, the other end of the engine heat exchange box 13 is connected with one end of the auxiliary heat exchanger 11, and the other end of the auxiliary heat exchanger 11 is connected with the other end of the water pump 12.
And (3) traveling and parking refrigeration: high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the heat exchanger 3 outside the vehicle through the end a3 and the end c3 of the three-way valve 2, is cooled and releases heat, then passes through the throttle valve 5, is throttled and depressurized and then enters the heat exchanger 6 inside the vehicle, the heat exchanger 6 inside the vehicle evaporates and absorbs heat and then enters the vapor-liquid separator 10 through the second electromagnetic valve 920, and finally, low-temperature and low-pressure refrigerant enters the compressor 1 to be sucked.
Traveling to heat: the auxiliary heat system operates, the water pump 12 is started, the secondary refrigerant flows out of the water pump 12, releases heat through the auxiliary heat exchanger 11, then flows through the engine heat exchange box 13 to absorb heat, and enters and exits the water pump.
Parking heating: the high-temperature high-pressure refrigerant discharged by the compressor 1 enters the inside heat exchanger 6 through the end a3 and the end b3 of the three-way valve 2, passes through the throttle valve 5 after cooling and heat release, enters the outside heat exchanger 3 after throttling and pressure reduction, enters the vapor-liquid separator 10 through the second electromagnetic valve 910 after the outside heat exchanger evaporates and absorbs heat, and finally enters the compressor 1 for air suction at low temperature and low pressure.
In this embodiment, the collected control parameters of the vehicle air conditioning system include a remote control and manual operator quantity sensing signal, a vehicle-mounted battery capacity sensing signal, a vehicle-mounted temperature sensing signal, a vehicle-mounted external temperature sensing signal, and an auxiliary heating system temperature sensing signal to control the operation of the vehicle air conditioning system, so as to control a heat pump air conditioning refrigeration system, a heat pump air conditioning heating system, an auxiliary heating system, an air door mode, a fan windshield, and various adjustment modes (an energy saving mode, a powerful mode, an automatic mode, an air supply mode, and a manual mode) in the tractor air conditioning system.
The tractor air conditioning system receives an air conditioning starting signal, judges whether the system is started or not according to the ambient temperature and the battery power, judges the operation mode (refrigeration, heating or air supply) through manual setting or automatic ambient temperature, enters a secondary system operation mode (energy-saving, powerful, setting and default) according to the manual setting or automatic mode, and sets and judges the system operation through the self program of the system.
As shown in fig. 3, the control flow of the remote control system of the air conditioner of the vehicle is as follows:
s101, when a tractor air conditioner control system receives a remote control or handsheet sensor to send out a whole vehicle air conditioner starting signal, entering the next step S102;
step S102, feeding back battery electric quantity through a vehicle-mounted battery electric quantity sensing signal, if the battery electric quantity D1 is detected to be larger than or equal to a battery electric quantity warning value Dj, entering a next step S104, and if not, entering a step S103;
step S103, the air conditioning system is not started;
step S104, feeding back the ambient temperature through the external environment sensing signal, and entering the next step S105 if Td is detected to be less than or equal to T1 and less than or equal to Th (the lowest operation temperature of the air conditioning system is less than or equal to the external environment temperature and less than or equal to the highest operation temperature of the air conditioning system);
step S105, the air conditioning system operates, and the next step S106/S107 is carried out;
s106, in an automatic mode, according to the feedback of the environment sensing signals outside and inside the vehicle, selecting through a system setting program, and entering the next step S108/S109/S110; the system setting program can be: the method is characterized in that the controller is automatically judged as the originally set program of the controller, T1 is more than or equal to Tco for refrigeration, T1 is more than or equal to Tho for heating, Tho is more than T1 and less than Tco for air supply, the judgment is further carried out according to the temperature difference Ts between the inside and the outside of the vehicle, and then the judgment can be changed according to the use habit of a user, wherein: t1 is the outside environment temperature, Tco is the cooling decision point temperature, Tho is the heating decision point temperature;
step S107, in a manual mode, a remote controller or a manual operator is used for manually selecting and setting, and the next step S108/S109/S110 is carried out;
step S108, an air supply mode;
step S109, a cooling mode, and the next step S114/S115/S116/S117 is entered;
step S110, a heating mode, and entering the next step S111;
s111, feeding back the temperature of the solution in the auxiliary heating system through an auxiliary heating temperature sensing signal, and if Tf is detected to be larger than or equal to Tfh (namely the auxiliary heating temperature is larger than or equal to the operable temperature of the auxiliary heating system), entering S113, otherwise, entering S112;
step S112, the heat pump system enters the next step S114/S115/S116/S117;
step S113, an auxiliary heating system enters an auxiliary heating mode;
step S114, a default mode; step S115, an energy-saving mode; step S116, a powerful mode; step S117 sets the mode.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (12)
1. A control method of an air conditioner for a vehicle, characterized by comprising:
responding to the received air conditioner starting signal;
judging whether the air conditioner is started or not according to the electric quantity of the automobile battery and the external environment temperature;
after the air conditioner is started, responding to a first-level manual setting instruction or a first-level intelligent setting instruction of a user, and operating the air conditioner in an air supply mode, a refrigeration mode or a heating mode, wherein the first-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration decision point and the temperature of a heating decision point;
responding to a second-level manual setting instruction or a second-level intelligent setting instruction of a user, and enabling the air conditioner to operate according to a preset working gear, wherein the second-level intelligent setting instruction is made based on the environment temperature outside the vehicle, the temperature of a refrigeration judging point and the temperature of a heating judging point.
2. The method for controlling an air conditioner of a vehicle according to claim 1, wherein the primary intelligent setting command is determined based on the outside ambient temperature, the cooling determination point temperature, and the heating determination point temperature in a manner that: when the ambient temperature outside the vehicle is more than or equal to the temperature of the refrigeration judging point, the air conditioner operates a refrigeration mode; when the temperature of the heating judgment point is less than the temperature of the environment outside the vehicle and less than the temperature of the refrigerating judgment point, the air conditioner operates an air supply mode; and when the environment temperature outside the vehicle is less than or equal to the heating judgment point temperature, the air conditioner operates in a heating mode.
3. The control method of an air conditioner for a vehicle according to claim 2, further comprising, in obtaining the primary intelligent setting instruction: and correcting the primary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of the air conditioner executing an air supply mode, a refrigeration mode and a heating mode.
4. The control method of an air conditioner for a vehicle according to claim 3, wherein the preset operation range includes: a default mode, a set mode, a power mode, and an energy saving mode.
5. The control method of an air conditioner for a vehicle according to claim 4, further comprising, in obtaining the secondary intelligence setting command: and correcting the secondary intelligent setting instruction by combining the temperature difference between the environment temperature inside the vehicle and the environment temperature outside the vehicle and the frequency of executing a default mode, a setting mode, a powerful mode and an energy-saving mode by the air conditioner.
6. The control method of the automobile air conditioner according to any one of claims 1 to 5, wherein the judging whether the air conditioner is started or not according to the electric quantity of the automobile battery and the ambient temperature outside the automobile comprises:
comparing the current automobile battery electric quantity with a battery electric quantity warning value, and when the current automobile battery electric quantity is smaller than the battery electric quantity warning value, the air conditioner is not started; when the current automobile battery electric quantity is larger than or equal to the battery electric quantity warning value, executing the following process;
judging whether the environment temperature outside the vehicle is between the highest operation temperature of the air conditioning system and the lowest operation temperature of the air conditioning system, and if not, not starting the air conditioner; and if so, starting the air conditioner.
7. The control method of an air conditioner for a vehicle according to claim 6, wherein when the air conditioner is operated in the heating mode, a sub-heating temperature of a sub-heating system in the air conditioner is monitored, and when the sub-heating temperature > sub-heating system operation temperature > ambient temperature in the vehicle, the sub-heating system is used for heating.
8. The control method of an air conditioner for a vehicle according to claim 6, characterized by further comprising: responding to a manual stop instruction or an intelligent stop instruction of a user, stopping the operation of the air conditioner,
the intelligent stop instruction is obtained by comparing the electric quantity of the automobile battery with a battery electric quantity warning value, and when the current electric quantity of the automobile battery is smaller than the battery electric quantity warning value, the air conditioner stops running.
9. An air conditioning system for a vehicle, characterized in that the system uses the control method of a vehicle air conditioner according to any one of claims 1 to 8.
10. The vehicle air conditioning system of claim 9, comprising a heat pump system and an auxiliary heat system, the heat pump system and the auxiliary heat system being thermally coupled together by an in-vehicle heat exchanger of the heat pump system and an auxiliary heat exchanger of the auxiliary heat system.
11. The vehicle air conditioning system of claim 9, including a heat pump system, the heat pump system comprising: the heat exchanger in the vehicle, the heat exchanger outside the vehicle, a throttle valve, a compressor, a gas-liquid separator, an inner fan and an outer fan, wherein
The first end of the heat exchanger inside the vehicle and the first end of the heat exchanger outside the vehicle are connected through a first branch, and the throttle valve is arranged in the first branch;
a second branch and a third branch are arranged between the second end of the heat exchanger inside the vehicle and the second end of the heat exchanger outside the vehicle in parallel, wherein a first electromagnetic valve and a second electromagnetic valve are arranged on the second branch in series; a three-way valve is arranged on the third branch; a fourth branch is formed between the second branch and the third branch, a first end of the fourth branch is connected to the second branch and is positioned between the first electromagnetic valve and the second electromagnetic valve, and a second end of the fourth branch is connected to the three-way valve;
the gas-liquid separator and the compressor are sequentially arranged on the fourth branch from the first end to the second end of the fourth branch; the inner fan is arranged on one side of the heat exchanger inside the vehicle, and the outer fan is arranged on one side of the heat exchanger outside the vehicle.
12. The vehicle air conditioning system of claim 11, further comprising an auxiliary heating system comprising an engine heat exchange box, a water pump, and an auxiliary heat exchanger connected in series to form a circulation loop,
the auxiliary heat exchanger is arranged on one side of the heat exchanger in the vehicle, which is far away from the inner fan; the engine heat exchange box is used for absorbing heat emitted by an automobile engine; the water pump is used for providing power for the secondary refrigerant in the circulating loop.
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Application publication date: 20201117 |