CN111959227B - Control method of vehicle-mounted air conditioning system, vehicle-mounted air conditioning system and storage medium - Google Patents
Control method of vehicle-mounted air conditioning system, vehicle-mounted air conditioning system and storage medium Download PDFInfo
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- CN111959227B CN111959227B CN202010759474.XA CN202010759474A CN111959227B CN 111959227 B CN111959227 B CN 111959227B CN 202010759474 A CN202010759474 A CN 202010759474A CN 111959227 B CN111959227 B CN 111959227B
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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
- B60H1/00764—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 vehicle driving condition, e.g. speed
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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
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
Abstract
The invention provides a control method of a vehicle-mounted air conditioning system, the vehicle-mounted air conditioning system and a storage medium, and relates to the technical field of air conditioners, wherein the control method of the vehicle-mounted air conditioning system comprises the following steps: acquiring an engine state of a target vehicle; the engine state comprises an operating state and a flameout state; and controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state. The invention improves the user experience of the driver using the vehicle-mounted air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of a vehicle-mounted air conditioning system, the vehicle-mounted air conditioning system and a storage medium.
Background
The vehicle-mounted air conditioner is composed of a compressor, a condenser, a throttling element, an evaporator, a fan and necessary control components and is used for adjusting the temperature and the humidity in the vehicle and providing an air conditioning system of a comfortable environment for vehicle passengers.
Disclosure of Invention
In order to solve the problems, the invention provides a control method of a vehicle-mounted air conditioning system, the vehicle-mounted air conditioning system and a storage medium, which can improve the user experience of a driver in using a vehicle-mounted air conditioner.
According to an embodiment of the present invention, in one aspect, a method for controlling a vehicle-mounted air conditioning system is provided, including: acquiring an engine state of a target vehicle; the engine states include an operating state and a shutdown state; and controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state.
Through adopting above-mentioned technical scheme, when vehicle engine operation or flame-out, on-vehicle air conditioning system homoenergetic normal operating has fully satisfied driver's on-vehicle air conditioner user demand, has promoted the user experience that the driver used on-vehicle air conditioner.
Preferably, the vehicle-mounted air conditioning system comprises a backup battery; the air conditioner outdoor unit comprises a first outdoor unit and a second outdoor unit; the first compressor is positioned in the first external machine, and the second compressor is positioned in the second external machine; the step of controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state includes: when the engine state is the running state, controlling an engine of the target vehicle to supply power for a vehicle storage battery, controlling the vehicle storage battery to supply power for a first compressor in the first outer unit, and controlling the refrigerant to be heated in the air conditioner inner unit to flow into the first outer unit; and when the engine is in a flameout state, controlling the vehicle storage battery to supply power to a second compressor in the second outer machine, controlling the refrigerant to be heated in the air conditioner inner machine to flow into the second outer machine, and triggering the electric quantity protection control of the vehicle storage battery.
Through adopting above-mentioned technical scheme, when the engine is in flame-out state, can control the vehicle battery and supply power for the second compressor, the vehicle-mounted air conditioning system can't normal operating because of lacking drive power supply when having solved the engine and having flamed out problem.
Preferably, the vehicle-mounted air conditioning system comprises a backup battery; the method further comprises the following steps: when the engine is in a flameout state, controlling the vehicle storage battery to supply power to the first compressor and triggering electric quantity protection control on the vehicle storage battery, or controlling the standby storage battery to supply power to the first compressor and controlling the refrigerant to be heated in the air conditioner indoor unit to flow into the first outdoor unit; or when the engine is in a flameout state, the standby storage battery is controlled to supply power to the second compressor, and the refrigerant to be heated in the air conditioner indoor unit is controlled to flow into the second outdoor unit.
By adopting the technical scheme, when the engine is in a flameout state, the vehicle storage battery or the standby storage battery is controlled to supply power to the first compressor, the refrigerant to be subjected to heat exchange is controlled to flow into the first external machine, or the standby storage battery is controlled to supply power to the second compressor, the refrigerant to be subjected to heat exchange is controlled to flow into the second external machine, the flowing direction of the refrigerant can be enabled to be in the compressor capable of normally working, and the running stability of the vehicle-mounted air conditioner is ensured.
Preferably, the charge protection control of the vehicle battery includes: monitoring the current electric quantity of the vehicle storage battery, and when the current electric quantity is smaller than a preset electric quantity threshold value, sending a charging reminding signal to a user and starting timing; and if the vehicle storage battery does not enter the charging state within the preset time, triggering the vehicle storage battery to stop supplying power.
Through adopting above-mentioned technical scheme, carry out electric quantity protection control to the vehicle battery, make the vehicle battery remain certain electric quantity all the time, avoid the problem that the engine that the electric quantity exhausts and lead to can't strike sparks the start, promoted vehicle control's stability.
Preferably, the method further comprises: and when the vehicle storage battery stops supplying power, controlling the backup battery to be used as a power supply to supply power, and triggering the electric quantity protection control of the backup battery.
Through adopting above-mentioned technical scheme, when vehicle storage battery stops to supply power for the compressor because the battery power protection, supply power as the power through controlling reserve battery, can guarantee the normal operating of compressor, and then promote the stability of on-vehicle air conditioner operation under the parking state.
Preferably, a refrigerant inlet and a refrigerant outlet of the air conditioner internal unit are both provided with a three-way valve, a first port of the three-way valve is connected with the first external unit, a second port of the three-way valve is connected with the second external unit, and a third port of the three-way valve is connected with the air conditioner internal unit; the step of controlling the refrigerant to be heated in the air conditioner indoor unit to flow into the first outdoor unit comprises the following steps: controlling the conduction of a first port and a third port of the three-way valve so as to enable the refrigerant to be heated in the air conditioner indoor unit to flow into the first compressor; the step of controlling the refrigerant to be heated in the air conditioner indoor unit to flow into the second outdoor unit comprises the following steps: and controlling the conduction of a second port and a third port of the three-way valve so as to enable the refrigerant to be heated in the air conditioner indoor unit to flow into the second compressor.
By adopting the technical scheme, the direction of the three-way valve in the vehicle-mounted air-conditioning system is controlled, the flow direction of the refrigerant can be flexibly controlled, the circulating flow of the refrigerant is realized, and the normal operation of the vehicle-mounted air-conditioning system can be ensured when an engine runs or is flamed out.
Preferably, a sliding block and a bracket are arranged inside the three-way valve, the bracket is used for driving the sliding block to move, and the sliding block shields the second port when the three-way valve is in a power-off state; the step of controlling the conduction of the first port and the third port of the three-way valve comprises the following steps: controlling the three-way valve to be in a power-off state, so that the sliding block covers a second port of the three-way valve; the step of controlling the conduction of the second port and the third port of the three-way valve comprises the following steps: and controlling the three-way valve to be in a power-on state, so that the bracket drives the sliding block to move to shield the first port of the three-way valve.
Through adopting above-mentioned technical scheme, carry out circular telegram or outage control to the three-way valve, can the quick control three-way valve switch on the direction, promoted the accuracy of refrigerant flow direction control.
According to an embodiment of the present invention, in another aspect, there is provided a vehicle air conditioning system including: the air conditioner comprises a controller, an air conditioner external unit and an air conditioner internal unit; the controller is used for acquiring the engine state of a target vehicle and controlling the power supply mode of a compressor in the air conditioner external unit based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state.
Preferably, the vehicle-mounted air conditioning system further comprises a standby storage battery, and the air conditioner outdoor unit comprises a first outdoor unit and a second outdoor unit; the first compressor is positioned in the first external machine, and the second compressor is positioned in the second external machine; the controller is further used for controlling an engine of the target vehicle to supply power to a vehicle storage battery when the engine is in a running state, controlling the vehicle storage battery to supply power to a first compressor in the first outer unit, and controlling the refrigerant to be heated in the air conditioner inner unit to flow into the first outer unit; the controller is further used for controlling the vehicle storage battery to supply power to a second compressor in the second outer unit and controlling the refrigerant to be heated in the air conditioner inner unit to flow into the second outer unit when the engine is in a flameout state.
Preferably, the vehicle-mounted air conditioning system further comprises a three-way valve, the three-way valve is arranged at a refrigerant inlet and a refrigerant outlet of the air conditioner internal unit, a first port of the three-way valve is connected with the first external unit, a second port of the three-way valve is connected with the second external unit, and a third port of the three-way valve is connected with the air conditioner internal unit.
Preferably, a sliding block and a support are arranged inside the three-way valve, the support is used for driving the sliding block to move, the sliding block is used for shielding the second port when the three-way valve is in a power-off state, and the first port is shielded when the three-way valve is in a power-on state.
According to an embodiment of the present invention, in another aspect, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is read and executed by a processor, the computer program implements the control method of the vehicle air conditioning system.
The invention has the following beneficial effects: by acquiring the engine state of the target vehicle and controlling the power supply mode of the compressor in the air conditioner external unit based on the engine state of the vehicle, when the vehicle engine runs or is flamed out, the vehicle-mounted air conditioning system can normally work, the use requirement of the vehicle-mounted air conditioner of a driver is fully met, and the user experience of the driver in using the vehicle-mounted air conditioner is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a flowchart of a control method of a vehicle-mounted air conditioning system according to the present invention;
FIG. 2 is a schematic diagram of a backup battery according to the present invention;
FIG. 3 is a schematic structural diagram of a vehicle air conditioning system according to the present invention;
FIG. 4a is a schematic structural diagram of a three-way valve according to the present invention in a power-off state;
FIG. 4b is a schematic structural diagram of a three-way valve according to the present invention in an energized state;
fig. 5 is a control flow chart of a vehicle air conditioner provided by the invention.
Description of reference numerals:
31 — a first port; 32-a second port; 33-a third port; 34-an evaporator; 35-a first throttling element; 36-a second throttling element; 41-a first compressor; 42-a second compressor; 51-a first condenser; 52-a second condenser; 61-a scaffold; 62-sliding block.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
the present embodiment provides a control method for a vehicle-mounted air conditioning system, which may be applied to the vehicle-mounted air conditioning system, and referring to a flowchart of the control method for the vehicle-mounted air conditioning system shown in fig. 1, the method mainly includes the following steps S102 to S104:
step S102: an engine state of the target vehicle is obtained.
The engine state comprises an operating state and a flameout state, the target vehicle can be a vehicle which is arbitrarily provided with the vehicle-mounted air conditioning system and needs to be controlled, the vehicle-mounted air conditioning system comprises a controller, an air conditioner inner unit and an air conditioner outer unit, wherein the air conditioner inner unit mainly comprises an evaporator, and the air conditioner outer unit mainly comprises a compressor, a condenser, a fan, a throttling element and the like. In practical applications, the current state of the engine may be detected by a sensor in real time or at preset intervals, such as whether the engine is in an operating state may be detected using a vibration sensor.
Step S104: and controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state.
In order to ensure the normal operation of the vehicle-mounted air conditioner, after a user opens a vehicle-mounted air conditioning system, the power supply mode of a compressor in an air conditioner outdoor unit is controlled based on the operation state of an engine, the power supply stability of the compressor in the air conditioner outdoor unit is ensured, the compressor can normally operate no matter the engine normally operates or the engine is in a flameout state, and then the vehicle-mounted air conditioner can normally operate when the engine is in the operation state or the flameout state. For example, when the engine is in a normal operation state, the vehicle-mounted air conditioning system may be driven to operate based on the engine, when the engine is in a flameout state, the vehicle-mounted air conditioning system may be driven to operate based on a storage battery, which may be an external large-capacity storage battery or an original vehicle storage battery in the vehicle.
According to the control method of the vehicle-mounted air conditioning system, the engine state of the target vehicle is obtained, the power supply mode of the compressor in the air conditioner external unit is controlled based on the engine state of the vehicle, the vehicle-mounted air conditioning system can work normally when the vehicle engine runs or is shut down, the use requirement of a driver on the vehicle-mounted air conditioner is fully met, and the user experience of the driver in using the vehicle-mounted air conditioner is improved.
In order to ensure the normal operation of the vehicle-mounted air conditioning system on the basis of saving the cost, the embodiment provides an implementation mode for controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on an engine state, wherein the air conditioner external unit comprises a first external unit and a second external unit, the first compressor is located in the first external unit, and the second compressor is located in the second external unit; specifically, the following steps (1) to (2) may be referred to:
step (1): when the engine state is the running state, the engine of the target vehicle is controlled to supply power to the vehicle storage battery, the vehicle storage battery is controlled to supply power to the first compressor in the first outer unit, and the refrigerant to be heated in the air conditioner inner unit of the vehicle-mounted air conditioning system flows into the first outer unit.
When the engine of the target vehicle normally runs, the engine can supply power for the vehicle storage battery, the vehicle storage battery supplies power for the first compressor in the first outer unit, the refrigerant to be heated in the air conditioner inner unit flows into the first compressor, the refrigerant is compressed by the first compressor, then enters the first condenser for condensation, and then enters the evaporator of the air conditioner inner unit through the throttling element for evaporation, and the refrigerant circulation is completed. The first condenser and the second condenser are heat exchangers of an air conditioner outdoor unit, and the first condenser and the second condenser are used as condensers when the vehicle-mounted air conditioner is in a refrigerating mode and used as evaporators when the vehicle-mounted air conditioner is in a heating mode; the evaporator of the air conditioner internal unit is used as an evaporator when the vehicle-mounted air conditioner is in a cooling mode, and is used as a condenser when the vehicle-mounted air conditioner is in a heating mode.
Step (2): and when the engine is in a flameout state, controlling the vehicle storage battery to supply power to a second compressor in the second outer machine, controlling the refrigerant to be heated in the air conditioner inner machine to flow into the second outer machine, and triggering the electric quantity protection control on the vehicle storage battery.
When the vehicle engine is shut down, the engine stops supplying power to the vehicle storage battery, the vehicle storage battery can be controlled to supply power to a second compressor in a second outer machine due to the fact that the vehicle storage battery stores certain electric quantity, refrigerant to be heated in the air conditioner inner machine flows into the second compressor, the refrigerant is compressed by the second compressor and then enters a second condenser, and the refrigerant enters an evaporation chamber of the air conditioner inner machine through a throttling element to be evaporated, and refrigerant circulation is completed, wherein the second condenser is a condenser in the second outer machine.
In practical applications, the first external unit may be an original external unit of the vehicle air conditioning system, and the second external unit may be an additional external unit of the vehicle air conditioning system. The first external machine and the second external machine can share the air conditioner internal machine to carry out refrigerant circulation, and when the engine is in a running state, the air conditioner internal machine and the first external machine (original external machine) form an air conditioning system; when the engine is in a flameout state, the air conditioner internal unit and the second external unit (additional external unit) form an air conditioning system. An additional air conditioner internal unit is not required to be installed, the vehicle-mounted air conditioning system can normally run during parking, and the material cost is saved.
When the engine of the target vehicle is turned off, in order to ensure the normal operation of the vehicle air conditioning system, the vehicle air conditioning system may further include a backup battery, and this embodiment further provides a power supply manner for controlling the vehicle battery or the backup battery to supply power to the first compressor or the second compressor, which may be specifically executed in the following first to third manners:
the first method is as follows: when the engine is in a flameout state, the vehicle storage battery is controlled to supply power to the first compressor, electric quantity protection control on the vehicle storage battery is triggered, and the refrigerant to be heated in the air conditioner internal unit is controlled to flow into the first external unit. Because certain electric quantity is stored in the vehicle storage battery, when the engine is flamed out, the vehicle storage battery can be controlled to supply power for the first compressor, in order to avoid that the engine cannot be ignited to start due to electric quantity exhaustion, when the vehicle storage battery is used for supplying power for the first compressor, the electric quantity protection control of the vehicle storage battery can be triggered. Specifically, the current electric quantity of the vehicle storage battery can be monitored, when the current electric quantity of the vehicle storage battery is smaller than a preset electric quantity threshold value, a charging reminding signal is sent to a user, timing is started, and if the vehicle storage battery does not enter a charging state within preset time, the vehicle storage battery is triggered to stop supplying power for the compressor. The preset electric quantity threshold value can be any value between 15% and 30%, and the preset time can be any value within 1-3 min, such as when the residual electric quantity of the vehicle storage battery is less than 20% of the total electric quantity, a user is reminded to charge, and if the vehicle storage battery does not enter a charging state within 1min, the vehicle storage battery is controlled to stop supplying power to the compressor.
In a specific embodiment, when the power supply of the vehicle storage battery is stopped, the backup battery is controlled to be used as a power supply to supply power, and the power protection control of the backup battery is triggered. When the vehicle storage battery stops supplying power due to electric quantity protection, the standby storage battery can be triggered to supply power for the first compressor or the second compressor as a power supply, and when the standby storage battery is used as a power supply of the compressor, the electric quantity protection control of the standby storage battery can be triggered. The electric quantity protection control mode of the standby storage battery can be the same as that of the vehicle-mounted storage battery, when the residual electric quantity of the standby storage battery is less than or equal to 20% of the electric quantity, a charging prompt is sent to a user, timing is started, and if the standby storage battery does not enter a charging state within preset time, the standby storage battery is triggered to stop supplying power to the compressor.
In practical application, the vehicle storage battery can be further provided with a charging socket so as to charge the vehicle storage battery by using an external power supply, and in order to prolong the power supply time of the vehicle storage battery, the vehicle storage battery with large capacity can be used for replacing the original vehicle storage battery with smaller capacity.
The second method comprises the following steps: when the engine is in a flameout state, the standby storage battery is controlled to supply power to the first compressor, and the refrigerant to be heated in the air conditioner indoor unit is controlled to flow into the first outdoor unit. When the engine stalls, can also the direct control reserve battery be the first compressor power supply, when first compressor normal operating, but air conditioner internal unit and first outer quick-witted formation circulating air conditioning system owing to only need install the unable problem of operation of on-vehicle air conditioning system that engine stalls and lead to, need not additionally to install external air conditioning system for the vehicle, saved equipment cost. Referring to the structural schematic diagram of the backup battery shown in fig. 2, the backup battery may be provided with a charging port so as to be charged separately, so as to meet emergency power consumption under different conditions.
The third method comprises the following steps: and when the engine is in a flameout state, controlling the standby storage battery to supply power to the second compressor and controlling the refrigerant to be heated in the air conditioner internal unit to flow into the second external unit. The vehicle-mounted air conditioning system also comprises a second outer machine, namely an additional air conditioning outer machine (namely the second outer machine) is additionally arranged on the basis of the original vehicle-mounted air conditioning system, the second outer machine can share one air conditioning inner machine with the first outer machine, the second outer machine is powered by an independent storage battery, the engine is not required to be driven to run, when the engine is shut down, the vehicle-mounted air conditioning system is controlled to automatically switch a circuit, the standby storage battery is enabled to supply power for a second compressor in the second outer machine, and the air conditioning inner machine and the second outer machine are controlled to perform refrigerant circulation. Compared with an external parking air-conditioning system in the prior art, the air-conditioning system can share an air-conditioning indoor unit with an original vehicle-mounted air-conditioning system, so that the equipment cost is saved, the air-conditioning indoor unit does not need to be additionally installed to occupy the space in the vehicle, and the influence on the tidiness and the attractiveness of the interior of the vehicle is avoided.
In a specific embodiment, referring to the structural schematic diagram of the vehicle air conditioning system shown in fig. 3, the refrigerant inlet and the refrigerant outlet of the air conditioning internal unit are both provided with a three-way valve, a first port 31 of the three-way valve is connected with the first external unit, a second port 32 of the three-way valve is connected with the second external unit, and a third port 33 of the three-way valve is connected with an evaporator 34 of the air conditioning internal unit. The first port 31 of the three-way valve at one end of the evaporator is connected with the first compressor 41 in the first outer unit through a pipeline, the first compressor 41 is connected with the first condenser 51 through a pipeline, the first condenser 51 is connected with the first port 31 of the three-way valve at the other end of the evaporator through a pipeline, and a first throttling element 35 is further connected between the first condenser 51 and the first port 31 of the three-way valve at the other end of the evaporator. The second port 32 of the three-way valve at one end of the evaporator is connected with the second compressor 42 in the second outdoor unit through a pipeline, the second compressor 42 is connected with the second condenser 52 through a pipeline, the second condenser 52 is connected with the second port 32 of the three-way valve at the other end of the evaporator through a pipeline, and a second throttling element 36 is further connected between the second condenser 52 and the second port 32 of the three-way valve at the other end of the evaporator.
When the refrigerant to be heated in the air conditioner indoor unit is controlled to flow into the first outdoor unit, the refrigerant to be heated in the air conditioner indoor unit can flow into the first compressor by controlling the conduction of the first port 31 and the third port 33 of the two three-way valves in fig. 3. The first port 31 and the third port 33 of the two three-way valves are respectively controlled to be in a conducting state, and the second port 32 is controlled to be in a closing state, so that the refrigerant in the evaporator 34 of the air conditioner indoor unit flows into the first compressor 41 and the condenser 51 of the original indoor unit to dissipate heat or absorb heat, and then returns to the evaporator.
When the refrigerant to be heated in the air conditioner indoor unit is controlled to flow into the second outdoor unit, the refrigerant to be heated in the air conditioner indoor unit can flow into the second compressor by controlling the conduction of the second port 32 and the third port 33 of the two three-way valves in fig. 3. The second port 32 and the third port 33 of the two three-way valves are respectively controlled to be in a conducting state, the first port 31 is in a closing state, and the refrigerant in the evaporator 34 of the air conditioner indoor unit flows into the second compressor 42 and the condenser 52 of the additional indoor unit to dissipate heat or absorb heat, and then returns to the evaporator.
In order to improve the accuracy of the three-way valve control, the three-way valve provided in this embodiment is provided with a slider and a bracket, referring to the schematic structural diagram of the three-way valve in the power-off state shown in fig. 4a, the bracket 61 is used to drive the slider 62 to move, and the slider 62 blocks the second port 32 when the three-way valve is in the power-off state. When the first port 31 and the third port 33 of the three-way valve need to be controlled to be communicated, the three-way valve can be controlled to be in a power-off state, and the slide block 62 shields the second port 62 of the three-way valve. When the second port 32 and the third port 33 of the three-way valve need to be controlled to be communicated, the two three-way valves can be electrified, and the three-way valve is controlled to be in an electrified state, so that the bracket 61 drives the sliding block 62 to move to shield the first port 31 of the three-way valve. Referring to the schematic structure of the three-way valve in the power-on state shown in fig. 4b, the bracket 61 drives the slider 61 to move leftward when the three-way valve is powered on, so that the slider 62 blocks the first port 31 inside the three-way valve. Normally, the bracket 61 and the slider 62 inside the three-way valve are located at a position blocking the second port 32, the first port 31 and the third port 33 of the three-way valve are in a conducting state, and when a storage battery is used for supplying power to the second compressor, so that the refrigerant enters the second external unit, the three-way valve is electrified, the bracket 61 drives the slider 62 to move to a position blocking the first port 31, and the second port 32 and the third port 33 are in a conducting state.
According to the control method of the vehicle-mounted air conditioning system provided by the embodiment, when the engine is in the running state, the air conditioning inner unit and the first outer unit can be controlled to form the air conditioning system; when the engine is in a flameout state, the vehicle storage battery or the standby storage battery can be controlled to supply power to the compressor in the first outer machine, so that the air conditioner inner machine and the first outer machine form normal operation of an air conditioning system, the air conditioner inner machine and the second outer machine can also be controlled to form normal operation of the air conditioning system, stable operation of the vehicle-mounted air conditioning system is guaranteed, and equipment cost is saved.
Example two:
corresponding to the control method of the vehicle-mounted air conditioning system provided in the first embodiment, an embodiment of the present invention provides an example of controlling a vehicle-mounted air conditioner by applying the control method of the vehicle-mounted air conditioning system, where the vehicle-mounted air conditioner includes an air conditioner internal unit, a first external unit, and a second external unit, the first external unit includes a first compressor, a first condenser, and a throttling element, the second external unit includes a second compressor, a second condenser, and a throttling element, the first external unit and the second external unit are connected in parallel, the air conditioner internal unit is connected with the first external unit and the second external unit through a three-way valve, see a vehicle-mounted air conditioner control flowchart shown in fig. 5, and may be specifically executed with reference to the following steps S502 to S506:
step S502: judging whether the vehicle engine is in a running state or not; if yes, go to step S504; if not, step S506 is performed.
Step S504: the engine is controlled to continuously charge the vehicle storage battery, the vehicle storage battery is controlled to supply power to the first compressor, and the three-way valve is controlled to be in a power-off state, so that the refrigerant in the air conditioner internal unit flows into the first external unit.
When the vehicle engine normally runs, the engine is controlled to charge the vehicle storage battery, the vehicle storage battery supplies power to the first compressor, the second compressor is in a power-off state, the three-way valve is in the power-off state, the first port and the third port of the three-way valve are communicated, refrigerant in the air conditioner internal unit can flow into the first external unit through the three-way valve, and the vehicle-mounted air conditioner normally runs.
Step S506: and controlling the standby storage battery to supply power to the second compressor, and controlling the three-way valve to be in a power-on state, so that the refrigerant in the air conditioner internal unit flows into the second external unit.
When the vehicle engine is shut down, the standby storage battery is controlled to supply power to the second compressor in the second outer unit, the first compressor is in a power-off state, the three-way valve is electrified, the second port and the third port of the three-way valve are communicated, and refrigerant in the air conditioner inner unit flows into the second outer unit through the third port and the second port of the three-way valve, so that the vehicle-mounted air conditioner can normally operate.
Example three:
corresponding to the control method of the vehicle-mounted air conditioning system provided by the first embodiment, an embodiment of the present invention provides a vehicle-mounted air conditioning system, which may be disposed in a target vehicle, and includes: controller, air conditioner outer machine and air conditioner inner machine.
The controller is used for acquiring the engine state of a target vehicle and controlling the power supply mode of the compressor in the air conditioner external unit based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state.
The above-mentioned vehicle air conditioning system that this embodiment provided is through the engine state who acquires the target vehicle to based on the power supply mode of compressor in the engine state control air conditioner outer machine of vehicle, when the vehicle operation or flame-out, make vehicle air conditioning system homoenergetic normally work, fully satisfied driver's vehicle air conditioner user demand, promoted driver's user experience who uses vehicle air conditioner.
In one embodiment, the air conditioner outdoor unit includes a first outdoor unit and a second outdoor unit, the first compressor is located in the first outdoor unit, and the second compressor is located in the second outdoor unit. The controller is further used for controlling the engine of the target vehicle to supply power to the vehicle storage battery when the engine state is the running state, controlling the vehicle storage battery to supply power to the first compressor in the first outer unit, and controlling the refrigerant to be heated in the air conditioner inner unit to flow into the first outer unit. The controller is also used for controlling the vehicle storage battery to supply power to a second compressor in the second outer machine when the engine is in a flameout state, controlling the refrigerant to be heated in the air conditioner inner machine to flow into the second outer machine, and triggering the electric quantity protection control of the vehicle storage battery.
In one embodiment, the controller is further configured to control the vehicle storage battery to supply power to the first compressor and trigger power protection control on the vehicle storage battery when the engine state is an off state, or control the backup storage battery to supply power to the first compressor and control the refrigerant to be heated in the air conditioner internal unit to flow into the first external unit; or when the engine is in a flameout state, the standby storage battery is controlled to supply power to the second compressor, and the refrigerant to be heated in the air conditioner internal unit is controlled to flow into the second external unit.
In one embodiment, the controller is further configured to monitor a current electric quantity of the vehicle storage battery, and when the current electric quantity is smaller than a preset electric quantity threshold, send a charging reminding signal to a user and start timing; and if the vehicle storage battery does not enter the charging state within the preset time, triggering the vehicle storage battery to stop supplying power.
In one embodiment, the controller is further configured to control the backup battery to supply power as a power source when the vehicle battery stops supplying power, and to trigger a power protection control for the backup battery.
In an embodiment, the vehicle-mounted air conditioning system further includes a three-way valve, the three-way valve is disposed at a refrigerant inlet and a refrigerant outlet of the air conditioner internal unit, a first port of the three-way valve is connected to the first external unit, a second port of the three-way valve is connected to the second external unit, and a third port of the three-way valve is connected to the air conditioner internal unit. The controller can control the conduction of the first port and the third port of the three-way valve so as to enable the refrigerant to be heated in the air conditioner indoor unit to flow into the first compressor; the controller can also control the conduction of the second port and the third port of the three-way valve, so that the refrigerant to be heated in the air conditioner indoor unit flows into the second compressor.
In an embodiment, a sliding block and a support are arranged inside the three-way valve, the support is used for driving the sliding block to move, the sliding block is used for shielding the second port when the three-way valve is in a power-off state, and the sliding block is used for shielding the first port when the three-way valve is in a power-on state. The controller enables the sliding block to shield the second port of the three-way valve by controlling the three-way valve to be in a power-off state so as to control the conduction of the first port and the third port of the three-way valve. The controller also controls the three-way valve to be in a power-on state, so that the support drives the sliding block to move to shield the first port of the three-way valve, and the second port and the third port of the three-way valve are controlled to be communicated.
In one embodiment, the controller includes a computer readable storage medium storing a computer program and a processor, and when the computer program is read and executed by the processor, the method for controlling the vehicle air conditioning system provided in the first embodiment is implemented.
According to the vehicle-mounted air conditioning system provided by the embodiment, when the engine is in a running state, the air conditioning inner unit and the first outer unit can be controlled to form the air conditioning system; when the engine is in a flameout state, the vehicle storage battery or the standby storage battery can be controlled to supply power to the compressor in the first outer machine, so that the air conditioner inner machine and the first outer machine form normal operation of an air conditioning system, the air conditioner inner machine and the second outer machine can also be controlled to form normal operation of the air conditioning system, stable operation of the vehicle-mounted air conditioning system is guaranteed, and equipment cost is saved.
Example four:
the present embodiment further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the control method embodiment of the vehicle-mounted air conditioning system, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Of course, those skilled in the art will understand that all or part of the processes in the methods of the above embodiments may be implemented by instructing the control device to perform operations through a computer, and the programs may be stored in a computer-readable storage medium, and when executed, the programs may include the processes of the above method embodiments, where the storage medium may be a memory, a magnetic disk, an optical disk, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The vehicle-mounted air conditioning system disclosed by the embodiment corresponds to the control method of the vehicle-mounted air conditioning system disclosed by the embodiment, so that the description is relatively simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A control method of a vehicle-mounted air conditioning system is characterized by comprising the following steps:
acquiring an engine state of a target vehicle; the engine states include an operating state and a shutdown state;
controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state;
the air conditioner outdoor unit comprises a first outdoor unit and a second outdoor unit; the first compressor is positioned in the first external machine, and the second compressor is positioned in the second external machine;
the step of controlling a power supply mode of a compressor in an air conditioner external unit of the vehicle-mounted air conditioning system based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state includes:
when the engine state is the running state, controlling an engine of the target vehicle to supply power for a vehicle storage battery, controlling the vehicle storage battery to supply power for a first compressor in the first outer unit, and controlling a refrigerant to be heated in an air conditioner inner unit to flow into the first outer unit;
when the engine state is a flameout state, controlling the vehicle storage battery to supply power to a second compressor in the second outer machine, controlling the refrigerant to be heated in the air conditioner inner machine to flow into the second outer machine, and triggering the electric quantity protection control of the vehicle storage battery; or, controlling a standby storage battery to supply power to the second compressor, and controlling the refrigerant to be heated in the air conditioner internal unit to flow into the second external unit;
the first external machine and the second external machine share the air conditioner internal machine for refrigerant circulation, and when the engine is in a running state, the air conditioner internal machine and the first external machine form an air conditioning system; when the engine is in a flameout state, the air conditioner internal unit and the second external unit form an air conditioning system.
2. The method of claim 1, wherein the charge protection control of the vehicle battery comprises:
monitoring the current electric quantity of the vehicle storage battery, and when the current electric quantity is smaller than a preset electric quantity threshold value, sending a charging reminding signal to a user and starting timing;
and if the vehicle storage battery does not enter the charging state within the preset time, triggering the vehicle storage battery to stop supplying power.
3. The method of claim 2, wherein the method further comprises:
and when the vehicle storage battery stops supplying power, controlling the standby storage battery to be used as a power supply for supplying power, and triggering the electric quantity protection control of the standby storage battery.
4. The method of claim 1, wherein a refrigerant inlet and a refrigerant outlet of the air conditioner indoor unit are provided with a three-way valve, a first port of the three-way valve is connected with the first outdoor unit, a second port of the three-way valve is connected with the second outdoor unit, and a third port of the three-way valve is connected with the air conditioner indoor unit;
the step of controlling the refrigerant to be heated in the air conditioner indoor unit to flow into the first outdoor unit comprises the following steps:
controlling the conduction of a first port and a third port of the three-way valve so as to enable the refrigerant to be heated in the air conditioner indoor unit to flow into the first compressor;
the step of controlling the refrigerant to be heated in the air conditioner indoor unit to flow into the second outdoor unit comprises the following steps:
and controlling the conduction of a second port and a third port of the three-way valve so as to enable the refrigerant to be heated in the air conditioner indoor unit to flow into the second compressor.
5. The method according to claim 4, characterized in that a slide block and a bracket are arranged inside the three-way valve, the bracket is used for driving the slide block to move, and the slide block is used for shielding the second port when the three-way valve is in a power-off state;
the step of controlling the conduction of the first port and the third port of the three-way valve comprises the following steps:
controlling the three-way valve to be in a power-off state, so that the sliding block covers a second port of the three-way valve;
the step of controlling the conduction of the second port and the third port of the three-way valve comprises the following steps:
and controlling the three-way valve to be in a power-on state, so that the bracket drives the sliding block to move to shield the first port of the three-way valve.
6. An in-vehicle air conditioning system, comprising: the air conditioner comprises a controller, an air conditioner external unit and an air conditioner internal unit;
the controller is used for acquiring the engine state of a target vehicle and controlling the power supply mode of a compressor in the air conditioner external unit based on the engine state so as to enable the vehicle-mounted air conditioning system to operate in an operating state or a flameout state;
the air conditioner outdoor unit comprises a first outdoor unit and a second outdoor unit; the first compressor is positioned in the first external machine, and the second compressor is positioned in the second external machine;
the controller is further used for controlling an engine of the target vehicle to supply power to a vehicle storage battery when the engine is in a running state, controlling the vehicle storage battery to supply power to a first compressor in the first outer unit, and controlling a refrigerant to be heated in an air conditioner inner unit to flow into the first outer unit;
the controller is further used for controlling the vehicle storage battery to supply power to a second compressor in the second outer machine when the engine is in a flameout state, controlling the refrigerant to be heated in the air conditioner inner machine to flow into the second outer machine, and triggering electric quantity protection control on the vehicle storage battery; or, controlling a standby storage battery to supply power to the second compressor, and controlling the refrigerant to be heated in the air conditioner internal unit to flow into the second external unit;
the first external machine and the second external machine share the air conditioner internal machine for refrigerant circulation, and when the engine is in a running state, the air conditioner internal machine and the first external machine form an air conditioning system; when the engine is in a flameout state, the air conditioner internal unit and the second external unit form an air conditioning system.
7. The vehicle air conditioning system of claim 6, comprising a three-way valve, wherein the three-way valve is disposed at a refrigerant inlet and a refrigerant outlet of the air conditioner internal unit, a first port of the three-way valve is connected to the first external unit, a second port of the three-way valve is connected to the second external unit, and a third port of the three-way valve is connected to the air conditioner internal unit.
8. The vehicle air conditioning system of claim 7, wherein the three-way valve is internally provided with a slider and a bracket, the bracket is used for driving the slider to move, the slider is used for shielding the second port when the three-way valve is in a power-off state, and the slider is used for shielding the first port when the three-way valve is in a power-on state.
9. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the method according to any one of claims 1-5.
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| CN202010759474.XA CN111959227B (en) | 2020-07-31 | 2020-07-31 | Control method of vehicle-mounted air conditioning system, vehicle-mounted air conditioning system and storage medium |
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| CN111959227A (en) | 2020-11-20 |
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