CN109455058A - A kind of economic type electric automotive air-conditioning system and control method - Google Patents
A kind of economic type electric automotive air-conditioning system and control method Download PDFInfo
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- CN109455058A CN109455058A CN201811332448.8A CN201811332448A CN109455058A CN 109455058 A CN109455058 A CN 109455058A CN 201811332448 A CN201811332448 A CN 201811332448A CN 109455058 A CN109455058 A CN 109455058A
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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
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- 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
-
- 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
- B60H1/0075—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 solar radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00828—Ventilators, e.g. speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
- B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means
Abstract
The present invention relates to a kind of economic type electric automotive air-conditioning system and control methods, including air-conditioner controller, compressor, first switch shut-off valve, second switch shut-off valve, third switch shut-off valve, the 4th switch shut-off valve, the 5th switch shut-off valve, the 6th switch shut-off valve, outdoor heat exchanger, the first cut-off type heating power expansion valve, the second cut-off type heating power expansion valve, indoor heat exchanger and gas-liquid separator.The technical program realizes that refrigerant commutating structure is simple, high reliablity and four-way commutation+electrically heated glass, comprehensive air-conditioning system solution reduce the energy consumption of system heating and defrosting by the use of switch shut-off valve.
Description
Technical field
The invention belongs to electric automobile air-conditioning system technical fields, particularly relate to a kind of economic type electric automotive air-conditioning system
And control method.
Background technique
Engine exhaust heat is few due to not having for electric vehicle, and winter generallys use electric heater auxiliary heating, but electric heater supplies
Warm low efficiency, has seriously affected the course continuation mileage of electric car.Heat pump air conditioner has good refrigeration and heating performance, is that electricity adds
The best alternative solution of hot assisted air conditioning system.However, heat pump air conditioning system is applied to electric car, there are also many difficult points to need
It solves.Firstly, heat pump air conditioning system worst cold case operational efficiency is lower, heating performance is to be improved；Secondly, domestic heat pump air conditioner
The fin-tube type heat exchanger generallyd use is unsatisfactory for the vibration resistance and lightweight requirements of automobile.
Electric car generallys use electric heating assisted air conditioning system, i.e., single cold air-conditioning (AC), additional thermistor (English letter
Claim PTC) heater auxiliary heating.The shortcomings that ptc heater is that the efficiency theory upper limit that the electricity of ptc heater is converted into heat is
1.0, actual conversion ratio COP < 0.9, heating efficiency is lower, is affected to automobile course continuation mileage.
Using three heat exchanger heat pumps, as shown in Figure 1, system has inside the heat exchanger 03 and H VA C of an outside
Two heat exchangers, while there are two heating power expansion valve (01,02) and two by-passing valves, system is realized not by switching by-passing valve
Equidirectional throttling, to reach cold and hot switching purpose, but air-conditioner host structure has large variation compared to traditional vehicle, needs to increase
Indoor heat exchanger, since indoor condenser size space limits, heat dissipation performance has very big limitation.
Using the two-way cooling and warming of heat pump, as shown in Fig. 2, by heating operations and can be freezed by four-way reversing valve 04
Journey conversion.This method does not need to add any equipment, and four-way reversing valve need to only be allowed to act when needing to defrost.Such knot
Structure is simple, and relative cost is low, but is primarily present following problems at this stage: automobile-used four-way reversing valve is basic in household four-way at present by a.
Upper exploitation is unable to satisfy automobile-used reliability requirement；B. expansion valve is based on household and develops electric expansion valve, and higher cost, electronics is swollen
Swollen valve is generally basede on temperature, pressure signal calculates the degree of superheat, controls expansion valve opening by temperature, at this stage integrated form temperature,
Pressure sensor cost is much higher compared with usual pressure sensor, and economy car application cost pressure is very big；C. the system has refrigeration,
Heating function, but there is no dehumidification function.I.e. not high in temperature, the larger weather of humidity is easy to haze in preceding shelves glass, influences to drive a vehicle
Safety.The limitation of factors above restricts this structure type heat pump temporarily without volume production application.
Summary of the invention
The object of the present invention is to provide a kind of economic type electric automotive air-conditioning system and control methods, to solve heating efficiency
It is low, influence the problem of automobile course continuation mileage and control method complexity.
The present invention is achieved by the following technical solutions:
A kind of economic type electric automotive air-conditioning system, including air-conditioner controller, compressor, first switch shut-off valve, second
Switch shut-off valve, third switch shut-off valve, the 4th switch shut-off valve, the 5th switch shut-off valve, the 6th switch shut-off valve, outdoor are changed
Hot device, the first cut-off type heating power expansion valve, the second cut-off type heating power expansion valve, indoor heat exchanger and gas-liquid separator；
The outlet of the compressor switchs shut-off valve with the second switch shut-off valve and the described 4th respectively by pipeline
Connection；
One end of the outdoor heat exchanger switchs shut-off valve and the 4th switch shut-off valve by pipeline with the third respectively
Connection；
The other end of the outdoor heat exchanger is swollen with the 5th switch shut-off valve and the first cut-off type heating power respectively by pipeline
Swollen valve connection；
The other end of the 5th switch shut-off valve and the other end of the first cut-off type heating power expansion valve pass through pipe
Road is connect with the 6th switch shut-off valve and the second cut-off type heating power expansion valve respectively；
The other end of the 6th switch shut-off valve and the other end of the second cut-off type heating power expansion valve pass through pipe
Road is connect with the indoor heat exchanger；
The other end of the indoor heat exchanger by pipeline respectively with one end of the first switch shut-off valve and described the
One end connection of two switch shut-off valves；
The other end of the other end of first switch shut-off valve and third switch shut-off valve passes through pipeline and gas-liquid point
Entrance connection from device；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first switch shut-off valve, the second switch shut-off valve, the third switch shut-off valve,
The 4th switch shut-off valve, the 5th switch shut-off valve, the 6th switch shut-off valve, the first cut-off type heating power are swollen
Swollen valve and the second cut-off type heating power expansion valve are connect with the air-conditioner controller electric signal.
Successively by compressor, the 4th switch shut-off valve, outdoor heat exchanger, the 5th switch shut-off valve, the second cut-off type heating power
Expansion valve, indoor heat exchanger, first switch shut-off valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchanger
Defrost pattern circuit；
Shut-off valve, first section are successively closed by the compressor, second switch shut-off valve, the indoor heat exchanger, the 6th amber
Only formula heating power expansion valve, the outdoor heat exchanger, third switch shut-off valve and the gas-liquid separator form air-conditioning heating mode
Circuit.
A kind of economic type electric automotive air-conditioning system, including air-conditioner controller, compressor, the first dibit triple valve, second
Dibit triple valve, two-way heating power expansion valve, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator；
The compressor outlet by pipeline respectively with the second interface of the first dibit triple valve and described second
The third interface of dibit triple valve connects；
The first interface of the outdoor heat exchanger is connect by pipeline with the first interface of the second dibit triple valve；
The second interface of the outdoor heat exchanger is connected by the first interface of pipeline and two-way heating power expansion valve；
The second interface of the two-way heating power expansion valve is connected by the first interface of pipeline and indoor heat exchanger；
The second interface of the indoor heat exchanger is connected by the first interface of the first dibit of pipeline number triple valve；
The second interface of the third interface of the first dibit triple valve and the second dibit triple valve passes through pipeline
It is connect with the entrance of the gas-liquid separator；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first dibit triple valve, the second dibit triple valve and the two-way heating power expansion valve
It is connect with the air-conditioner controller electric signal.
Successively by the compressor, the second dibit triple valve, the outdoor heat exchanger, the two-way heating power expansion valve, institute
State indoor heat exchanger, the first dibit triple valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchange
Device defrost pattern circuit；
Successively expanded by the compressor, the first dibit triple valve, the indoor heat exchanger, the two-way heating power
Valve, the outdoor heat exchanger, the second dibit triple valve and the gas-liquid separator form air-conditioning heating mode loop.
Including indoor heat exchanger temperature sensor, pressure sensor and the outdoor temperature sensor, with the air-conditioning
The connection of controller electric signal.
Including air blower and fan, the air blower and the fan are connect with the air-conditioner controller electric signal.
Including glass electrical heating controller and electrically heated glass；The glass electrical heating controller respectively with the air-conditioning control
Device processed and electrically heated glass electric signal connection.
A kind of economic type electric automobile air-conditioner control method, comprising the following steps:
Air-conditioner controller passes through collected outside temperature signal, sunshine load signal, set temperature and vehicle interior temperature
COMPREHENSIVE CALCULATING determines that air-conditioning state selection enters air conditioner refrigerating mode or air-conditioning heating mode；
Under the air conditioner refrigerating mode or outdoor heat exchanger defrost pattern state,
Air-conditioner controller controls the first switch shut-off valve and opens, and the second switch shut-off valve is closed, third switchs
Shut-off valve is closed, and the 4th switch shut-off valve is opened, the 5th switch shut-off valve is opened, and the 6th switch shut-off valve is closed, the first cut-off
Formula heating power expansion valve is closed, and the second cut-off type heating power expansion valve is opened, while being controlled the compressor and being opened；
Or air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve
Second interface is turned off, while being controlled the compressor and being opened；
Under the air-conditioning heating mode state: the air-conditioner controller controls the first switch shut-off valve and closes, institute
The unlatching of second switch shut-off valve is stated, the third switch shut-off valve is opened, and the 4th switch shut-off valve is closed, and the described 5th opens
It closes shut-off valve to close, the 6th switch shut-off valve is opened, and the first cut-off type heating power expansion valve is opened, second cut-off
Formula heating power expansion valve is closed, while being controlled the compressor and being opened；
Or air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve
Second interface is opened, while being controlled the compressor and being opened.
Under the air conditioner refrigerating mode and under heating mode, the controller passes through the temperature for collecting indoor heat exchanger,
Adjust the discharge capacity of compressor.
The control method of the outdoor heat exchanger defrost pattern, comprising the following steps:
When T0≤- 10 DEG C of environment temperature or 8 DEG C of T0 >, the outdoor heat exchanger defrost pattern does not start；
- 10 < T0≤- 3 DEG C, after system runs the first setting time of T1=, air-conditioning heating pattern switching to outdoor parallel operation
White mode switches back into heating mode after running the second setting time；
3 T0≤8 DEG C <, system operation the second setting time of T1=, heating pattern switching defrost pattern, after running 3min,
Switch heating mode.
The control method of preceding shelves glass demisting/frost mode, comprising the following steps:
Air-conditioner controller detects that defrosting presses switch to open signal, in conjunction with outdoor environment temperature T0, sends control signal to electricity
Glass controller is heated, shelves glass demisting/frost power before confirming:
If T0 >=10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 200W；
If -10 DEG C of 10 DEG C of < T0 <, the power that glass electrical heating controller control is supplied to electrically heated glass is 400W；
If T0≤10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 600W.
The beneficial effects of the present invention are:
The technical program realizes that refrigerant commutating structure is simple, high reliablity and four-way by the use of switch shut-off valve
Commutation+electrically heated glass, comprehensive air-conditioning system solution, reduces the energy consumption of system heating and defrosting.
Detailed description of the invention
Fig. 1 is prior art electric automobile air-conditioning system schematic diagram；
Fig. 2 is the automotive air-conditioning system schematic diagram by four-way reversing valve；
Fig. 3 is air-conditioning system schematic illustration of the present invention；
Fig. 4 is preceding shelves demisting/frost schematic diagram；
Fig. 5 is air-conditioner controller control principle schematic diagram；
Fig. 6 is compressor displacement control schematic diagram；
Fig. 7 is another schematic illustration of air-conditioning system of the present invention；
Fig. 8 is the air conditioner refrigerating pattern diagram of Fig. 7；
Fig. 9 is the air-conditioning heating pattern diagram of Fig. 7.
01,02 heating power expansion valve, the heat exchanger outside 03,04 four-way reversing valve, 1 compressor, 21 first switch shut-off valves,
22 second switch shut-off valves, 23 thirds switch shut-off valve, and 24 the 4th switch shut-off valves, 25 the 5th switch shut-off valves, 26 the 6th open
Pass shut-off valve, 5 outdoor heat exchangers, 6 fans, 7 first cut-off type heating power expansion valves, 8 indoor heat exchangers, 9 air blowers, 10 second sections
Only formula heating power expansion valve, 11 indoor heat exchanger temperature sensors, 12 pressure sensors, 13 air-conditioner controllers, 14 outdoor temperatures pass
Sensor, 15 gas-liquid separators, 16 glass electrical heating controllers, 17 electrically heated glasses, 101 compressors, 102 second dibit threeways
Valve, 103 outdoor heat exchangers, 104 outdoor temperature sensor, 105 fans, 106 two-way heating power expansion valves, 107 air-conditioner controllers,
108 indoor heat exchangers, 109 air blowers, 110 indoor heat exchanger temperature sensors, 111 first dibit triple valves, 112 gas-liquid separations
Device, 113 pressure sensors.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used to explanation and illustration technical solution of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Embodiment 1
The application provides a kind of economic type electric automotive air-conditioning system, as shown in figure 3, including air-conditioner controller 13, compression
Machine 1, first switch shut-off valve 21, second switch shut-off valve 22, third switch shut-off valve the 23, the 4th switch shut-off valve the 24, the 5th
It switchs shut-off valve the 25, the 6th and switchs shut-off valve 26, outdoor heat exchanger 5, the first cut-off type heating power expansion valve 7, the second cut-off type heat
Power expansion valve 10, indoor heat exchanger 8 and gas-liquid separator 15；It further include that fan 6, air blower 9 including indoor heat exchanger temperature pass
Sensor 11, pressure sensor 12 and the outdoor temperature sensor 14 are connect with the air-conditioner controller electric signal.
The air blower and the fan are connect with the air-conditioner controller electric signal.
Wherein, indoor heat-exchange temperature sensor is set at indoor heat exchanger, and the temperature for detecting indoor heat exchanger is believed
Number；Pressure sensor is set to the exit of compressor, for detecting the outlet pressure of compressor；Outdoor temperature sensor setting
At outdoor heat exchanger, for detecting environment temperature.
As shown in figure 4, including glass electrical heating controller 16 and electrically heated glass 17；The glass electrical heating controller point
It is not connect with the air-conditioner controller and the electrically heated glass electric signal.In this application, each component is required to connect with power supply
It connects, power supply is provided for the control section of each component, herein without illustrating one by one.
The outlet of the compressor switchs shut-off valve with the second switch shut-off valve and the described 4th respectively by pipeline
Connection；
One end of the outdoor heat exchanger switchs shut-off valve and the 4th switch shut-off valve by pipeline with the third respectively
Connection；
The other end of the outdoor heat exchanger is swollen with the 5th switch shut-off valve and the first cut-off type heating power respectively by pipeline
Swollen valve connection；
The other end of the 5th switch shut-off valve and the other end of the first cut-off type heating power expansion valve pass through pipe
Road is connect with the 6th switch shut-off valve and the second cut-off type heating power expansion valve respectively；
The other end of the 6th switch shut-off valve and the other end of the second cut-off type heating power expansion valve pass through pipe
Road is connect with the indoor heat exchanger；
The other end of the indoor heat exchanger by pipeline respectively with one end of the first switch shut-off valve and described the
One end connection of two switch shut-off valves；
The other end of the other end of first switch shut-off valve and third switch shut-off valve passes through pipeline and gas-liquid point
Entrance connection from device；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first switch shut-off valve, the second switch shut-off valve, the third switch shut-off valve,
The 4th switch shut-off valve, the 5th switch shut-off valve, the 6th switch shut-off valve, the first cut-off type heating power are swollen
Swollen valve and the second cut-off type heating power expansion valve are connect with the air-conditioner controller electric signal.
Successively by compressor, the 4th switch shut-off valve, outdoor heat exchanger, the 5th switch shut-off valve, the second cut-off type heating power
Expansion valve, indoor heat exchanger, first switch shut-off valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchanger
Defrost pattern circuit；
Shut-off valve, first section are successively closed by the compressor, second switch shut-off valve, the indoor heat exchanger, the 6th amber
Only formula heating power expansion valve, the outdoor heat exchanger, third switch shut-off valve and the gas-liquid separator form air-conditioning heating mode
Circuit.
This system is mainly by refrigeration mode, heating mode and electric loop composition, wherein electric loop is in Fig. 3 with sky
Adjusting controller is the dotted arrow part of core.
A kind of economic type electric automobile air-conditioner control method, comprising the following steps:
As shown in figure 5, air-conditioner controller is by collected outside temperature signal, sunshine load signal, set temperature and vehicle
Interior temperature passes through COMPREHENSIVE CALCULATING, determines that air-conditioning state selection enters air conditioner refrigerating mode or air-conditioning heating mode；
Under the air conditioner refrigerating mode state,
Air-conditioner controller controls the first switch shut-off valve and opens, and the second switch shut-off valve is closed, third switchs
Shut-off valve is closed, and the 4th switch shut-off valve is opened, the 5th switch shut-off valve is opened, and the 6th switch shut-off valve is closed, the first cut-off
Formula heating power expansion valve is closed, and the second cut-off type heating power expansion valve is opened, while being controlled the compressor and being opened；Second cut-off heating power
After expansion valve is opened, aperture, compressor operating, compressor compresses refrigerant, by interior are controlled to adjust by air-conditioner controller
Heat exchanger flashes to gaseous refrigerant, and after the throttling of the second cut-off type heating power expansion valve, expansion, evaporator temperature is reduced, and inhales
It receives and drives indoor heat.
In this application, the first cut-off heating power expansion valve and the second cut-off heating power expansion valve are on former thermodynamic valve basis
Upper increase switch, switchs after opening, and thermodynamic valve adjusts aperture, control is realized simply, at low cost according to self structure parameter.
Under the air-conditioning heating mode state: the air-conditioner controller controls the first switch shut-off valve and closes, institute
The unlatching of second switch shut-off valve is stated, the third switch shut-off valve is opened, and the 4th switch shut-off valve is closed, and the described 5th opens
It closes shut-off valve to close, the 6th switch shut-off valve is opened, and the first cut-off type heating power expansion valve is opened, second cut-off
Formula heating power expansion valve is closed, while being controlled the compressor and being opened.
Compressor operating, compressor compresses refrigerant, through outdoor heat exchanger by refrigerant heat at gaseous state, through the first cut-off
Heating power expansion valve throttling, expansion.Heat exchanger condenses indoors, discharges high temperature to driver's cabin heat release.
Under the air conditioner refrigerating mode and under heating mode, the controller passes through the temperature for collecting indoor heat exchanger,
Adjust the discharge capacity of compressor.
Temperature is lower, humidity it is higher using heating mode when, outdoor heat exchanger temperature is low, be easy frosting, for avoid to
System brings failure, needs to the regular defrost of outdoor heat exchanger.
Under outdoor heat exchanger defrost pattern, air-conditioner controller controls the first switch shut-off valve and opens, and described second
Switch shut-off valve is closed, third switch shut-off valve is closed, and the 4th switch shut-off valve unlatching, the 5th switch shut-off valve are opened, and the 6th
It switchs shut-off valve to close, the first cut-off type heating power expansion valve is closed, and the second cut-off type heating power expansion valve is opened, while described in control
Compressor is opened；After second cut-off heating power expansion valve is opened, aperture is controlled to adjust by air-conditioner controller, at this point, evaporator temperature
Degree reduces, and absorbs heat in driver's cabin.Outdoor heat exchanger is high temperature in the process, and high-pressure refrigerant passes through high temperature refrigerant
To outdoor heat exchanger defrost.
The control method of the outdoor heat exchanger defrost pattern, comprising the following steps:
When T0≤- 10 DEG C of environment temperature or 8 DEG C of T0 >, the outdoor heat exchanger defrost pattern does not start；
- 10 < T0≤- 3 DEG C, after system runs the first setting time of T1=, air-conditioning heating pattern switching to outdoor parallel operation
White mode switches back into heating mode after running the second setting time；
3 T0≤8 DEG C <, system operation the second setting time of T1=, heating pattern switching defrost pattern, after running 3min,
Switch heating mode.
To avoid the impact generated due to high-low pressure alternation to system unit in compressor handoff procedure, in heating → defrost
In handoff procedure, after compressor closing → valve member switches → 3 seconds, compressor restarting, switching is completed.
To avoid, since room temperature reduces the complaint generated to customer during defrost, when defrost, air blower 9 is automatically
It adjusts to minimum shelves, air conditioning mode is automatically adjusted to defrosting outlet, avoids blowing people.After defrost process, adjust automatically is returned
Original state.
It is realized by electrically heated glass, electrically heated glass is high-efficient, maximum power 600W, can meet -18 DEG C of defrostings substantially
It is required that comparing electric heating PTC (general > 3500W).
The control method of preceding shelves glass demisting/frost mode, comprising the following steps:
Air-conditioner controller detects that defrosting presses switch to open signal, in conjunction with outdoor environment temperature T0, sends control signal to electricity
Glass controller is heated, shelves glass demisting/frost power before confirming:
If T0 >=10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 200W；
If -10 DEG C of 10 DEG C of < T0 <, the power that glass electrical heating controller control is supplied to electrically heated glass is 400W；
If T0≤10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 600W.
Embodiment 2
A kind of economic type electric automotive air-conditioning system, as shown in fig. 7, comprises air-conditioner controller 107, compressor 101, first
Dibit triple valve 111, the second dibit triple valve 102, two-way heating power expansion valve 106, outdoor heat exchanger 103, indoor heat exchanger 108
And gas-liquid separator 112；Including indoor heat exchanger temperature sensor 110, pressure sensor 113 and the outdoor temperature sensor
104, it is connect with the air-conditioner controller electric signal.
The present embodiment, instead of two cut-off heating power expansion valves and two switch shut-off valves, is made using two-way heating power expansion valve
Four switch shut-off valves are replaced with two dibit triple valves, keep system more succinct, cost is lower.
Including air blower 109 and fan 105, the air blower and the fan connect with the air-conditioner controller electric signal
It connects.
Including glass electrical heating controller and electrically heated glass；The glass electrical heating controller respectively with the air-conditioning control
Device processed and electrically heated glass electric signal connection.
The compressor outlet by pipeline respectively with the second interface of the first dibit triple valve and described second
The third interface of dibit triple valve connects；
The first interface of the outdoor heat exchanger is connect by pipeline with the first interface of the second dibit triple valve；
The second interface of the outdoor heat exchanger is connected by the first interface of pipeline and two-way heating power expansion valve；
The second interface of the two-way heating power expansion valve is connected by the first interface of pipeline and indoor heat exchanger；
The second interface of the indoor heat exchanger is connected by the first interface of the first dibit of pipeline number triple valve；
The second interface of the third interface of the first dibit triple valve and the second dibit triple valve passes through pipeline
It is connect with the entrance of the gas-liquid separator；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first dibit triple valve, the second dibit triple valve and the two-way heating power expansion valve
It is connect with the air-conditioner controller electric signal.
Successively by the compressor, the second dibit triple valve, the outdoor heat exchanger, the two-way heating power expansion valve, institute
State indoor heat exchanger, the first dibit triple valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchange
Device defrost pattern circuit；Compressor operating, compressor compresses refrigerant are cooled to liquid refrigerant by indoor heat exchanger, warp
Two-way heating power expansion valve throttling expansion is crossed, evaporator temperature reduces, and absorbs heat in driver's cabin, realizes refrigeration, recycles schematic diagram
As shown in Figure 8.
As shown in figure 9, successively by the compressor, the first dibit triple valve, the indoor heat exchanger, described two-way
Heating power expansion valve, the outdoor heat exchanger, the second dibit triple valve and the gas-liquid separator form air-conditioning heating mode
Circuit.Compressor operating, compressor compresses refrigerant are cooled to liquid refrigerant through outdoor heat exchanger, expand through two-way heating power
The throttling of valve 4, expansion.Indoor heat exchanger high temperature is to driver's cabin heat release.
A kind of economic type electric automobile air-conditioner control method, comprising the following steps:
Air-conditioner controller passes through collected outside temperature signal, sunshine load signal, set temperature and vehicle interior temperature
COMPREHENSIVE CALCULATING determines that air-conditioning state selection enters air conditioner refrigerating mode or air-conditioning heating mode；
Under the air conditioner refrigerating mode or outdoor heat exchanger defrost pattern state,
Air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve second
Interface is turned off, while being controlled the compressor and being opened；
Under the air-conditioning heating mode state:
Air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve second
Interface is opened, while being controlled the compressor and being opened.
Under the air conditioner refrigerating mode and under heating mode, the controller passes through the temperature for collecting indoor heat exchanger,
Adjust the discharge capacity of compressor.
The control method of the outdoor heat exchanger defrost pattern, comprising the following steps:
When T0≤- 10 DEG C of environment temperature or 8 DEG C of T0 >, the outdoor heat exchanger defrost pattern does not start；
- 10 < T0≤- 3 DEG C, after system runs the first setting time of T1=, air-conditioning heating pattern switching to outdoor parallel operation
White mode switches back into heating mode after running the second setting time；
3 T0≤8 DEG C <, system operation the second setting time of T1=, heating pattern switching defrost pattern, after running 3min,
Switch heating mode.
The control method of preceding shelves glass demisting/frost mode, comprising the following steps:
Air-conditioner controller detects that defrosting presses switch to open signal, in conjunction with outdoor environment temperature T0, sends control signal to electricity
Glass controller is heated, shelves glass demisting/frost power before confirming:
If T0 >=10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 200W；
If -10 DEG C of 10 DEG C of < T0 <, the power that glass electrical heating controller control is supplied to electrically heated glass is 400W；
If T0≤10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 600W.
Although present invention combination above embodiments are described, the present invention is not limited to above-described embodiment,
And be only defined by the appended claims, those of ordinary skill in the art easily can modify and change to it, but simultaneously
Without departing from essential idea and range of the invention.
Claims (10)
1. a kind of economic type electric automotive air-conditioning system, which is characterized in that cut including air-conditioner controller, compressor, first switch
Only valve, second switch shut-off valve, third switch shut-off valve, the 4th switch shut-off valve, the 5th switch shut-off valve, the 6th switch cut-off
Valve, outdoor heat exchanger, the first cut-off type heating power expansion valve, the second cut-off type heating power expansion valve, indoor heat exchanger and gas-liquid separation
Device；
The outlet of the compressor is connect with the second switch shut-off valve and the 4th switch shut-off valve respectively by pipeline；
One end of the outdoor heat exchanger switchs shut-off valve by pipeline with the third respectively and the 4th switch shut-off valve is connect；
The other end of the outdoor heat exchanger switchs shut-off valve and the first cut-off type heating power expansion valve with the 5th respectively by pipeline
Connection；
The other end of the 5th switch shut-off valve and the other end of the first cut-off type heating power expansion valve pass through pipeline point
It is not connect with the 6th switch shut-off valve and the second cut-off type heating power expansion valve；
It is described 6th switch shut-off valve the other end and the second cut-off type heating power expansion valve the other end pass through pipeline with
The indoor heat exchanger connection；
The other end of the indoor heat exchanger is opened with one end of the first switch shut-off valve and described second respectively by pipeline
Close one end connection of shut-off valve；
The other end of the other end of first switch shut-off valve and third switch shut-off valve passes through pipeline and gas-liquid separator
Entrance connection；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first switch shut-off valve, the second switch shut-off valve, third switch shut-off valve, described
4th switch shut-off valve, the 5th switch shut-off valve, the 6th the switch shut-off valve, the first cut-off type heating power expansion valve
And the second cut-off type heating power expansion valve is connect with the air-conditioner controller electric signal.
2. economic type electric automotive air-conditioning system according to claim 1, it is characterised in that successively opened by compressor, the 4th
Shut-off valve, outdoor heat exchanger, the 5th switch shut-off valve, the second cut-off type heating power expansion valve, indoor heat exchanger, first switch is closed to cut
Only valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchanger defrost pattern circuit；
Shut-off valve, the first cut-off type are successively closed by the compressor, second switch shut-off valve, the indoor heat exchanger, the 6th amber
Heating power expansion valve, the outdoor heat exchanger, third switch shut-off valve and the gas-liquid separator form air-conditioning heating mode loop.
3. a kind of economic type electric automotive air-conditioning system, which is characterized in that including air-conditioner controller, compressor, the first dibit three
Port valve, the second dibit triple valve, two-way heating power expansion valve, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator；
The compressor outlet by pipeline respectively with the second interface of the first dibit triple valve and second dibit
The third interface of triple valve connects；
The first interface of the outdoor heat exchanger is connect by pipeline with the first interface of the second dibit triple valve；
The second interface of the outdoor heat exchanger is connected by the first interface of pipeline and two-way heating power expansion valve；
The second interface of the two-way heating power expansion valve is connected by the first interface of pipeline and indoor heat exchanger；
The second interface of the indoor heat exchanger is connected by the first interface of the first dibit of pipeline number triple valve；
The second interface of the third interface of the first dibit triple valve and the second dibit triple valve passes through pipeline and institute
State the entrance connection of gas-liquid separator；
The outlet of the gas-liquid separator is connect by pipeline with the entrance of the compressor；
The compressor, the first dibit triple valve, the second dibit triple valve and the two-way heating power expansion valve with
The air-conditioner controller electric signal connection.
4. economic type electric automotive air-conditioning system according to claim 3, which is characterized in that successively by the compressor,
Second dibit triple valve, the outdoor heat exchanger, the two-way heating power expansion valve, the indoor heat exchanger, first dibit
Triple valve and gas-liquid separator composition air conditioner refrigerating mode loop and outdoor heat exchanger defrost pattern circuit；
Successively by the compressor, the first dibit triple valve, the indoor heat exchanger, the two-way heating power expansion valve, institute
State outdoor heat exchanger, the second dibit triple valve and gas-liquid separator composition air-conditioning heating mode loop.
5. according to claim 1 to economic type electric automotive air-conditioning system described in 4, which is characterized in that including indoor heat exchanger
Temperature sensor, pressure sensor and the outdoor temperature sensor are connect with the air-conditioner controller electric signal.
6. according to claim 1 to economic type electric automotive air-conditioning system described in 4, which is characterized in that including air blower and wind
Fan, the air blower and the fan are connect with the air-conditioner controller electric signal.
7. according to claim 1 to economic type electric automotive air-conditioning system described in 4, which is characterized in that including electrically heated glass
Controller and electrically heated glass；The glass electrical heating controller is electric with the air-conditioner controller and the electrically heated glass respectively
Signal connection.
8. a kind of economic type electric automobile air-conditioner control method, which comprises the following steps:
Air-conditioner controller is by collected outside temperature signal, sunshine load signal, set temperature and vehicle interior temperature by integrating
It calculates, determines that air-conditioning state selection enters air conditioner refrigerating mode or air-conditioning heating mode；
Under the air conditioner refrigerating mode or outdoor heat exchanger defrost pattern state,
Air-conditioner controller controls the first switch shut-off valve and opens, and the second switch shut-off valve is closed, third switch ends
Valve is closed, and the 4th switch shut-off valve is opened, the 5th switch shut-off valve is opened, and the 6th switch shut-off valve is closed, the first cut-off type heat
Power expansion valve is closed, and the second cut-off type heating power expansion valve is opened, while being controlled the compressor and being opened；
Or air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve second
Interface is turned off, while being controlled the compressor and being opened；
Under the air-conditioning heating mode state: the air-conditioner controller controls the first switch shut-off valve and closes, and described the
Two switch shut-off valves are opened, and the third switch shut-off valve is opened, and the 4th switch shut-off valve is closed, and the 5th switch is cut
Only valve is closed, and the 6th switch shut-off valve is opened, and the first cut-off type heating power expansion valve is opened, the second cut-off type heat
Power expansion valve is closed, while being controlled the compressor and being opened；
Or air-conditioner controller control the first dibit triple valve second interface and the second dibit triple valve second
Interface is opened, while being controlled the compressor and being opened.
9. economic type electric automobile air-conditioner control method according to claim 8, which is characterized in that
The control method of the outdoor heat exchanger defrost pattern, comprising the following steps:
When T0≤- 10 DEG C of environment temperature or 8 DEG C of T0 >, the outdoor heat exchanger defrost pattern does not start；
- 10 < T0≤- 3 DEG C, after system runs the first setting time of T1=, air-conditioning heating pattern switching to outdoor parallel operation defrost mould
Formula switches back into heating mode after running the second setting time；
3 T0≤8 DEG C <, system run the second setting time of T1=, and heating pattern switching defrost pattern after running 3min, switches
Heating mode.
10. economic type electric automobile air-conditioner control method according to claim 8, which is characterized in that preceding shelves glass demisting/
The control method of white mode, comprising the following steps:
Air-conditioner controller detects that defrosting presses switch to open signal, in conjunction with outdoor environment temperature T0, sends control signal to electric heating
Glass controller, shelves glass demisting/frost power before confirming:
If T0 >=10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 200W；
If -10 DEG C of 10 DEG C of < T0 <, the power that glass electrical heating controller control is supplied to electrically heated glass is 400W；
If T0≤10 DEG C, the power that glass electrical heating controller control is supplied to electrically heated glass is 600W.
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| CN201811332448.8A CN109455058B (en) | 2018-11-09 | 2018-11-09 | Economical air conditioning system of electric automobile and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811332448.8A CN109455058B (en) | 2018-11-09 | 2018-11-09 | Economical air conditioning system of electric automobile and control method |
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| WO2018124788A1 (en) * | 2016-12-29 | 2018-07-05 | 이래오토모티브시스템 주식회사 | Heat pump for automobile |
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| CN106016811A (en) * | 2014-11-05 | 2016-10-12 | 合肥工业大学 | Electric vehicle air conditioning heat pump system provided with economizer |
| DE102015002165A1 (en) * | 2015-02-19 | 2016-08-25 | Audi Ag | Vehicle air conditioning with reheat operation |
| CN107356021A (en) * | 2016-05-10 | 2017-11-17 | 比亚迪股份有限公司 | Heat pump type air conditioning system and electric automobile |
| WO2018124788A1 (en) * | 2016-12-29 | 2018-07-05 | 이래오토모티브시스템 주식회사 | Heat pump for automobile |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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