CN107228450A - Air-conditioning system, the control system of the air-conditioning system and control method - Google Patents
Air-conditioning system, the control system of the air-conditioning system and control method Download PDFInfo
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- CN107228450A CN107228450A CN201610169988.3A CN201610169988A CN107228450A CN 107228450 A CN107228450 A CN 107228450A CN 201610169988 A CN201610169988 A CN 201610169988A CN 107228450 A CN107228450 A CN 107228450A
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- expansion valve
- air
- control
- electric expansion
- electric
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
-
- 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
- B60H1/0065—Control members, e.g. levers or knobs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention discloses a kind of air-conditioning system and the control system and control method of the air-conditioning system, wherein described first evaporator, second evaporator is set with parallel way, first electric expansion valve is set in a series arrangement with the first evaporator, second electric expansion valve is set in a series arrangement with the second evaporator, first electric expansion valve can be adjusted respectively, the aperture of second electric expansion valve controls first, the refrigerant flow of branch road where second evaporator, the air-conditioning system is by controlling each electric expansion valve storing initial state and positional information before power-off, so that electric expansion valve is in the preceding reception of upper electricity or reads once institute's storage state and positional information, so as to complete initialization switching, reduce electric expansion valve step-out risk, save system start-up time, reduce system energy consumption.
Description
Technical field
The present invention relates to air-conditioning system, and in particular to the control device and control of air-conditioning system and its electric expansion valve
Method processed.
Background technology
In existing automotive system, air conditioning for automobiles is as one of main energy resource consumption unit, as vehicle is saved
It is required that raising, the energy-conservation of air conditioning for automobiles is also progressively suggested, in automotive air-conditioning system, effectively control system
System refrigerant flow so that system plays optimal efficiency, is conducive to air conditioner system energy saving；Such as electronic vapour
Car air-conditioning system, uses compressor can be with gearshift adjustment, working conditions change scope is big, can be swollen by using electronics
Swollen valve accurate adjustment aperture, to adapt to the changes in flow rate requirement of compressor；But the electronic expansion of air-conditioning system
Valve is as execution unit, it is necessary to accurately adjust its aperture under a rational control logic so that air-conditioning
Heat-exchange system reaches that performance optimizes and reliably run, if electronic expansion valve opening regulation is lost
Step, it would be possible to so that air-conditioning system regulation is out of control.The whole process run according to current automotive air-conditioning system,
The control process of electric expansion valve generally includes several stages such as startup, operation control and shutdown, such as transports
How the regulation performance in row control stage directly affects air conditioning energy consumption regulation, therefore, how to improve electronic expansion
Valve opening regulation performance is the technology trends in current air-conditioning system field.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of reduction electric expansion valve step-out risk, saved
The air-conditioning system of system start-up time, the control method of air-conditioning system and control device.
In order to achieve the above object, the technical scheme of air-conditioning system use of the present invention is：A kind of air-conditioning system,
Including compressor, First Heat Exchanger, the second heat exchanger, the first evaporator, the second evaporator, the first electronics
Expansion valve and the second electric expansion valve, the First Heat Exchanger are arranged at the compressor outlet and first,
Pipeline between two electronic expansion valve inlets, second heat exchanger includes the first heat exchanging part, the second heat exchanging part
Point, heat exchange can be carried out between first heat exchanging part and the second heat exchanging part, described second changes
First heat exchanging part of hot device is arranged between First Heat Exchanger outlet and first, second electronic expansion valve inlet
Pipeline, the second heat exchanging part of second heat exchanger is arranged at first, second evaporator outlet and compressor
Pipeline between entrance；First evaporator, the second evaporator are set with parallel way, first electronics
Expansion valve is set in a series arrangement with the first evaporator, and second electric expansion valve is with the second evaporator to go here and there
Connection mode is set, and first electric expansion valve can be adjusted respectively, the aperture of the second electric expansion valve is controlled
The refrigerant flow of branch road, first electric expansion valve, the second electronics where making first, second evaporator
Expansion valve is adjusted before aperture after the power-up, the init state information stored according to air-conditioning system and original position
Confidence breath completes initialization switching, and the first, second electric expansion valve state can be adjusted to have initialized
Into state, first, second electric expansion valve can obtain initial position message.
Invention additionally discloses a kind of control system of air-conditioning system, including air-conditioner controller and for controlling electricity
The electric control part of son expansion valve events, the air-conditioner controller is the control centre of the air-conditioning system, is used for
The control signal and/or input information of Vehicular system or control panel are received and parsed through, and parsing is generated
Control signal issue electric expansion valve, the electric expansion valve controls electronic expansion according to the control signal
Valve events；
The air-conditioner controller or the electric control part include memory cell, and the memory cell can store institute
State the positional information and initialization completion status information of electric expansion valve；
The positional information and initialization completion status letter provided according to the air-conditioner controller memory cell
Breath, obtains initialization switching signal, and the electric control part controls the electricity according to the initialization switching signal
Sub- expansion valve completes init state switching.
Invention additionally discloses a kind of control method of air-conditioning system, including the electronics of the control air-conditioning system are swollen
The control method of swollen valve, the control method of the electric expansion valve includes：Start in the air-conditioner controller and control
When making the electric expansion valve power down program, the air-conditioner controller or the electric control part are deposited by built-in
Storage unit initializes completion status and positional information to store the electric expansion valve, and the electronics is controlled afterwards
Expansion valve dead electricity, so that the electric expansion valve completes init state switching in power up phase.
Relative to prior art, the present invention by before electric expansion valve valve power down to init state information with
Original position information is stored so that electric expansion valve again after upper electricity can quick obtaining current location information,
And initialization completion status can be switched to quickly, reduction electric expansion valve step-out risk, saving system start
Time, reduction system energy consumption.
Brief description of the drawings
Fig. 1 is a kind of part system schematic diagram of embodiment of air-conditioning system of the present invention；
Fig. 2 is the system schematic of air-conditioning system another embodiment of the present invention；
Fig. 3 is a kind of embodiment of the electric expansion valve electric control part of air-conditioning system of the present invention；
Fig. 4 is the another embodiment of the electric expansion valve electric control part of air-conditioning system of the present invention；
Fig. 5 is showing for the part LIN signal datas section that electric expansion valve shown in Fig. 3 carries out initialization switching
It is intended to；
Fig. 6 is a kind of control that electric expansion valve shown in Fig. 3 carries out initialization switching in LIN control models
Method schematic diagram；
Fig. 7 is second of control method schematic diagram that electric expansion valve shown in Fig. 3 carries out initialization switching；
Fig. 8 is the third control method schematic diagram that electric expansion valve shown in Fig. 3 carries out initialization switching；
Fig. 9 is the 4th kind of control method schematic diagram that electric expansion valve shown in Fig. 3 carries out initialization switching；
Figure 10 is the first control method schematic diagram that electric expansion valve shown in Fig. 4 carries out initialization switching；
Figure 11 is second of control method schematic diagram that electric expansion valve shown in Fig. 4 carries out initialization switching.
Embodiment
Refer to shown in Fig. 1 to Fig. 2, present embodiment discloses a kind of air-conditioning system, the air-conditioning system
At least include heat-exchange system, such as vehicle use or the air-conditioning system of family expenses, the heat-exchange system passes through system system
Cryogen and ambient side air or coolant carry out heat exchange, the heat-exchange system possess refrigerating function and/or
Heating function and/or dehumidification function, specifically the air-conditioning system kind of refrigeration cycle can be carried out under control instruction
Or heating circulation, the air-conditioning system passes through the compressor 100, outdoor heat exchanger, room that are connected together
Interior heat exchanger and at least two electric expansion valves (electronic expansion valve, EXV) formation refrigerant
Stream, indoors heat exchanger make to carry out kind of refrigeration cycle during evaporator function, heat exchanger makees condenser work(indoors
Carry out heating circulation during energy, such as carry out kind of refrigeration cycle in the summer of heat so that in-car or interior is nice and cool, cold
Winter heat and circulate so that in-car or indoor warm, also in adjustable car or indoor air humidity,
Allow in-car relatively suitable without fog, indoor air humidity, the electric expansion valve is circulated in refrigerating/heating
It is middle to be used as the restricting element that cold medium flux is adjusted between external heat exchanger and internal exchanger.
In embodiment as shown in Figure 1, the heat-exchange system includes the compressor connected by refrigerant line
100th, First Heat Exchanger 200, the second heat exchanger 300, the first evaporator 401, the second evaporator 402,
First electric expansion valve 501, the second electric expansion valve 502, specifically the First Heat Exchanger 200 be located at
Between the compressor outlet and first, second electronic expansion valve inlet, second heat exchanger 300 includes
First heat exchanging part 301, the second heat exchanging part 302, first heat exchanging part divide it with the second heat exchanging part
Between can carry out heat exchange, specifically second heat exchanger be Double-flow-channel heat exchanger, the stream of the first heat exchanging part
The way of contact is the not mass transfer that conducts heat between the working media of road and the runner of the second heat exchanging part, and described second changes
First heat exchanging part of hot device is arranged between First Heat Exchanger outlet and first, second electronic expansion valve inlet
Pipeline, the second heat exchanging part of second heat exchanger is arranged at first, second evaporator outlet and compressor
Pipeline between entrance, the further pipe before the import of the second heat exchanger 300, after each evaporator outlet
Reservoir 600 is provided with road, prevents refrigerant from causing liquid hammer to compressor；The heat-exchange system is second
Two branch roads are set with parallel way between heat exchanger exit and suction port of compressor, one of branch road is first
Electric expansion valve, the first evaporator, another branch road be the second electric expansion valve, the second evaporator, specifically
First evaporator 401 is located between the first electronic expansion valve outlet and suction port of compressor, the second evaporator 402
Between the second electronic expansion valve outlet and suction port of compressor, first electric expansion valve 501 and first
Evaporator 401 is set in a series arrangement, and the evaporator 402 of the second electric expansion valve 502 and second is with string
Connection mode is set, first electric expansion valve, the second electric expansion valve respectively by adjust respective aperture come
The refrigerant flow of branch road, each can effectively be controlled according to specific situation where controlling first, second evaporator
Place branch road, reduction is disturbed each other.
In another embodiment as shown in Figure 2, the heat-exchange system enters in the second heat exchanger exit and compressor
Another branch road has also been arranged in parallel between mouthful, the 3rd electric expansion valve, cooler are provided with the branch road, should
Cooler can be as battery cooling element, for heating battery apparatus cooling, specifically, the 3rd electric expansion valve
Set in a series arrangement with cooler, the 3rd electric expansion valve controls battery cooler by adjusting aperture
The refrigerant flow of place branch road, herein it is to be appreciated that describe below described first, second and the 3rd electricity
In place of the control system and control method of sub- expansion valve, described first, second and the 3rd electric expansion valve can
It is referred to as electric expansion valve (EXV).
The First Heat Exchanger 200 as heat sink or heat abstractor, such as evaporator or condenser,
From external environment condition medium can absorb heat or radiate by refrigerant, the second heat exchanger 300 as heat sink, than
Such as evaporator, absorbed heat by refrigerant from surrounding medium, the 3rd heat exchanger 400 is heat abstractor, than
Such as condenser or air cooler, radiated by refrigerant to surrounding medium.
It refer to shown in Fig. 3, Fig. 4, schematically illustrate the control system that the air-conditioning system is used
Two kinds of embodiments, the control system include air-conditioner controller 61 and for control EXV act
Electric control part 62, wherein control centre of the air-conditioner controller as air-conditioning system, for receiving and solving
The control signal and/or input information and/or sensor information of Vehicular system or control panel are analysed, and will solution
The control signal of analysis generation issues EXV, and the control signal at least includes initialization switching signal, can made
Obtain EXV states and directly switch to initialization completion status, the control that EXV is then received according to electric control part
Signal processed controls EXV to act；The electric control part, for receiving and parsing through the air-conditioner controller hair
The input information and/or sensor information gone out, and set in advance be directed to reference to what electric control part was stored
EXV control programs and/or the feedback information of electric control part storage, control signal can be obtained by computing,
And the control signal is converted into the electricity that EXV is able to carry out, EXV actions can be controlled by the electricity.
The air-conditioner controller 61 includes memory cell, and the memory cell can store the EXV positions letter
Breath and initialization completion status information, specifically the air-conditioner controller 61, should with central processing module
Memory cell can be arranged at the air-conditioner controller central processing module by integration mode；Or, other implementations
Electric control part 62 described in mode includes memory cell, and the memory cell needs that the EXV positions can be stored
Information and initialization completion status information, the storage is read out for the electric control part in power up phase
Information, specifically that the storage is provided by setting central processing module 621 is single for the electric control part 62
Member, also, the memory cell can be arranged at the electric control part central processing module by integration mode；Herein
It is to be appreciated that the EXV positions can be represented by needle present position, typically represented with step number, such as 0
Walk positional representation needle and be in bottommost, now flow is that 0,480 step positional representation needles are in top,
Now maximum flow；At least three kinds states of the EXV state values, may be defined as no initializtion, initial
Change in carrying out, initialization is completed.
The memory cell is formed for non-volatile memory element, can still preserve data in EXV power down, just
There is provided when electricity on EXV；In each power up phase of EXV, EXV can be according to the air-conditioner controller
The positional information and initialization completion status information that the memory cell of memory cell or electric control part is provided,
The initialization switching signal is obtained, the electric control part controls EXV according to the initialization switching signal
Init state switching is completed, EXV can obtain initial position message, EXV positions and state are adjusted
For initialization completion status, the initial position to be used as next regulation aperture, it is to avoid EXV None- identifieds
Initial position or identification initial position produce excessive deviation, are adjusted so as to reduce step-out risk, lifting EXV
Precision is saved, may be such that EXV mechanical structures without initialization action, you can be omitted in EXV power up phase
Shi Jinhang is initialized, such as first fully closed when not needing EXV to initialize to arrive a certain aperture again or first fully closed complete again
This process for arriving a certain aperture again is opened, it is relative to shorten the EXV electrifying startup times, it can also reduce EXV
Power consumption and initialization noise.
Specifically, when air-conditioner controller starts EXV power down programs, the air-conditioner controller or described
The memory cell of electric control part can at least store the EXV initialization completion statuses and positional information；
When air-conditioner controller starts EXV power-up routines, according to the memory cell stored information, EXV can
Switch oneself state to initialization completion status, switching position to institute's storage location, so as to complete to initialize shape
State switches.
A kind of embodiment of the control system as shown in Figure 3, the control system is that LIN controls system
System, the transmission of (Local Internet Network, LIN) control model signal is connected using local network, described
LIN control systems include a host node (master node) and multiple from node (slave node), sheet
Air-conditioner controller 61 described in embodiment (such as HVAC controller) as LIN host nodes or LIN buses,
The EXV as LIN from one of node, can phase by omitting EXV power up phase initialization procedures
To where reduction EXV from the power consumption of node, also can the whole LIN networks power consumption of relative reduction, and then also may be used
Hot environment in vehicle environmental temperature, such as enging cabin is reduced indirectly, lifts the reliable journey of each device performance
Degree.
The electric control part 62 includes above-mentioned central processing module 621, bus signals reception/sending module
(LIN transceiver modules 622), stepper drive control module 623, drive module 624, the electric control part are used for
The EXV mechanical parts are controlled to be acted, rotor, running part and the needle of such as stepper motor (are not schemed
Show), it can control rotor in particular by the electric control part and rotate, then needle is driven by the rotation of rotor
Move up and down, so that adjusting needle position can control aperture, in the EXV electrifying startup stages, by obtaining
The memory cell stored information is taken, EXV positions and state are adjusted to initialize completion status, can
Step-out risk, lifting EXV degrees of regulation are reduced, while the initialization demarcation of power up phase can be omitted, is entered
One step can relative reduction EXV repeatedly initialize for a long time bring mechanical wear, lifting life of product.
The LIN transceiver modules 622, central processing module is sent to by the signal in the LIN buses of detection,
The central processing module 621, analysis result is obtained for parsing the signal, and will be with the solution
The corresponding feedback signal of analysis result is sent to LIN buses by the LIN signal transmitting modules 13；
The central processing module 621, be responsible for receiving and parsing through the control information from air-conditioning system master control borad,
The control signal for EXV after parsing is sent to drive control module, record or storage EXV current
Positional information, the feedback signal corresponding with the analysis result be sent to by the bus transceiver module
LIN buses；
The drive control module 623, is responsible for receiving the center processing of the air-conditioner controller or electric control part
Module comes the control signal being controlled to EXV, and is transferred to drive module；
The drive module 624, the electric signal for meeting the control signal requirement is provided for the electronic coil,
The electric signal for meeting control signal can control pintle action.
Specifically, the electric control part is by setting memory cell to store EXV positional informations and initialized
In the case of status information, EXV is initialization completion shape by reading stored state value when upper electric
State, initialization completion status is switched to by EXV states, and the electric control part, which can be read, stores original position
Confidence is ceased, and the institute is stored into original position information and is set to EXV present position values；
Or, the air-conditioner controller is by setting memory cell to store EXV positional informations and initialized
In the case of status information, in the EXV power down stages, the positional information and initialization completion status letter
Breath is sent to the air-conditioner controller from EXV in the way of LIN signals and preserved, sky when upper electric
Adjust controller then to issue the initialization switching signal by LIN control models and be supplied to the EXV electricity
Part is controlled, the initialization switching signal includes init state handover information and stores original position information, its
Described in electric control part receive the init state handover information, EXV states are switched to and initialized
Into state, the electric control part receives and stores original position information, and the institute is stored into original position information is set to
EXV present position values, so that EXV completes init state switching；
More specifically, the air-conditioner controller is supplied to EXV initialization switching signal to be LIN signals,
It refer to shown in Fig. 5, the LIN signals at least include two LIN data bytes, each data byte contains
Eight data bit (bit), the positional information is characterized as by LIN position signallings (signal):N-th word
All 8 positions and the N+1 byte of section are low two (bit0 and bit1), for characterizing EXV present bits
Put, the init state handover information is expressed as：High two (bit6 and the bit7) of N+1 bytes,
Wherein N is equal to or more than 1, utilizes this two signals, LIN host nodes of the initialization switching signal
State switching can be issued and original position information is stored and give EXV electric control parts.On other LIN signals,
Above-mentioned two signal definition (response data) in LIN frames (frame) response data is referred to refer to
Definition.
Relative to Fig. 3 illustrated embodiments, the another embodiment of the air-conditioner control system shown in Fig. 4
In, air-conditioner controller 63 can the integrally disposed EXV electric control parts；
The air-conditioner controller 63, is responsible for receiving the input information and/or sensor letter of air-conditioning system master control borad
Breath, and combine the control program set in advance for EXV that air-conditioner controller is stored, and/or air-conditioning control
The feedback information of device processed storage, the feedback information at least include that the air-conditioner controller memory cell stored just
Beginningization completion status information and positional information, can obtain control signal, and the control is believed by computing
Number it is emitted to electric control part 64；
The electric control part 64, can for the control signal to be converted into the electricity that EXV is able to carry out
EXV is controlled by the electricity.
Specifically, the air-conditioner controller is provided with central processing module 630, the EXV electric control parts
64 are provided with drive control module 641, drive module 642, wherein the center processing of the air-conditioner controller
Module is responsible for receiving input information and/or sensor information, and the control signal for EXV is produced through computing,
And drive control module, record or storage EXV current location informations are sent to, specifically in EXV power down
Stage, the positional information and initialization completion status information are stored in air-conditioner controller in the form of variable
In 63 central processing modules, the air-conditioner controller central processing module can be with Urine scent.
The memory cell of air-conditioner controller described in present embodiment is integrally disposed in the air-conditioner controller
Central processing module 630, stored shape can be read in air-conditioner controller 63 described in EXV power up phase
State value is initialization completion status, and the air-conditioner controller can read stored original position information, by the institute
Storage original position information is set to EXV present position values, for being supplied to electric control part to enter to be about to state switching
EXV present position values are set to by init state, by storage original position information.
It refer to shown in Fig. 6 to Figure 11, schematically illustrate the described two air-conditioning systems of Fig. 3, Fig. 4
Control method, the control method include control EXV control method：
The air-conditioner controller start control the EXV power down program when, the air-conditioner controller or
The electric control part stores the EXV initialization completion statuses and positional information by built-in storage unit,
The EXV dead electricity is controlled afterwards so that the EXV is first completed just before power up phase aperture regulation
Beginning state switches, so as to provide accurate initial opening as the benchmark of aperture regulation；
When the air-conditioner controller starts the control EXV power-up routines, deposited according to the memory cell
The EXV initialization completion statuses and positional information of storage, the EXV switching oneself states complete for initialization
State, the positional information are set to present position values, so as to complete init state switching.
Specifically, as shown in fig. 6, the air-conditioner controller by local network connect control model with it is described
EXV is communicated, and in the EXV power down stages, is comprised the following steps：
S11：The air-conditioner controller starts the control EXV power down program；
S12：The positional information and initialization completion status information are anti-from EXV in the way of LIN signals
The memory cell of the air-conditioner controller of feeding is stored；
S13：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, comprising the following steps：
S21：Electricity on the air-conditioner controller control EXV；
S22：State is switched and stores original position information by the air-conditioner controller by LIN control models
It is sent to EXV；
S23：Then, EXV electric control parts are cut according to the init state handover information progress state received
Change, EXV states are switched into initialization completion status；The EXV electric control parts receive and store original position
Confidence is ceased, and the storage location is set into EXV present position values；
S24：The switching of EXV init states is completed.
Held before refer to the another embodiment of EXV control methods shown in Fig. 7, the EXV dead electricity
Capable initialization operation at least one times, specifically step is as follows：
S31：The air-conditioner controller starts the control EXV power down program；
S32：The air-conditioner controller sends initialization control signal to EXV；
S33：Control EXV is initialized, further reduction EXV step-out risks；
S34：After the completion of EXV initialization, feedback states and positional information give air-conditioner controller (LIN master
Node)；
S35：The memory cell of the air-conditioner controller feeds back the status information come and position to the EXV
Confidence breath is stored；
S36：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, power up phase is carried out with reference to shown in Fig. 6.
It refer to shown in Fig. 8, schematically illustrate the 3rd embodiment of air-conditioning system described in Fig. 3,
The EXV positional values and init state information are stored in the storage of EXV electric control parts before EXV power down
Unit, it is specific as follows：
In the EXV power down stages, comprise the following steps：
S41：The air-conditioner controller starts the control EXV power down program；
S42：The air-conditioner controller connects control model by local network and sends preservation instruction, controls institute
State EXV memory cell storage EXV valve positions and init state；
S43：EXV performs transmission preservation completion after storage and feeds back signal to the air-conditioner controller,
S44：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, comprising the following steps：
S51：Electricity on the air-conditioner controller control EXV；
S52：EXV electric control parts are completed from reading state value at the memory cell of the electric control part for initialization
State so that EXV states are initialization completion status；
S53：EXV electric control part reading position values, the positional value read is set to EXV current locations
Value；
S54：The EXV init states switching is completed.
EXV control methods shown in Fig. 9 are refer to, of air-conditioning system described in Fig. 3 is schematically illustrated
Performed before four embodiments, the third embodiment relative to more than, the EXV dead electricity at least one times just
Beginningization is operated, and specifically step is as follows：
S61：The air-conditioner controller starts the control EXV power down program；
S62：The air-conditioner controller sends initialization control signal to EXV；
S63：Control EXV is initialized；
S64：After the completion of initialization, the memory cell of the electric control part is controlled to come EXV feedbacks
Status information and positional information stored；
S65：EXV sends feedback signal, feeds back to air-conditioner controller (LIN host nodes) state and position letter
Breath is preserved successfully；
S66：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, step is carried out with reference to shown in Fig. 8.
EXV control methods shown in Figure 10 are refer to, of air-conditioning system described in Fig. 4 is schematically illustrated
One embodiment, the air-conditioner controller 63 can the integrally disposed EXV electric control parts；
In the EXV power down stages, comprise the following steps：
S71：The air-conditioner controller starts the control EXV power down program；
S72：The positional information and initialization completion status information are stored in air-conditioning control with variable format
The memory cell of device processed；
S73：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, comprising the following steps：
S81：It is electric on the air-conditioner controller；
S82：The air-conditioner controller from reading state value at itself memory cell for initialization completion status,
So that EXV states are initialization completion status；
S83：The air-conditioner controller is from reading position value at itself memory cell, the positional value read
It is set to EXV present position values；
S84：The switching of EXV init states is completed.
EXV control methods shown in Figure 11 are refer to, of air-conditioning system described in Fig. 4 is schematically illustrated
Initialization operation at least one times is performed before two embodiments, the EXV dead electricity, specifically in EXV power down
In the stage, comprise the following steps：
S91：The air-conditioner controller starts the control EXV power down program；
S92：The air-conditioner controller control EXV is initialized, further reduction EXV step-out risks；
S93：After the completion of EXV initialization, the memory cell of the air-conditioner controller is controlled to EXV shapes
State information and positional information are stored；
S94：EXV dead electricity is controlled, is terminated.
In addition, in EXV power up phase, power up phase is carried out with reference to shown in Figure 10.
The air conditioner system control method illustrated for more than, is initialized or without initialization in power-down procedure,
Have no effect on the EXV positions and with init state value, furthermore the memory cell be used as storage EXV
The functional unit part of state and positional information, can be arranged on EXV electric control parts or LIN host nodes
Or in air conditioning for automobiles central processing module other modules.
The above described is only a preferred embodiment of the present invention, not making any formal to the present invention
Limitation.Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any
Those skilled in the art, without departing from the scope of the technical proposal of the invention, all using above-mentioned
The methods and techniques content of announcement makes many possible variations and modification, or modification to technical solution of the present invention
For the equivalent embodiment of equivalent variations.Therefore, every content without departing from technical solution of the present invention, according to this
The technical spirit of invention still belongs to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of technical solution of the present invention protection.
Claims (14)
1. a kind of air-conditioning system, including compressor, First Heat Exchanger, the second heat exchanger, the first evaporator,
Second evaporator, the first electric expansion valve and the second electric expansion valve, the First Heat Exchanger are arranged at described
Pipeline between compressor outlet and first, second electronic expansion valve inlet, second heat exchanger includes first
Heat exchanging part, the second heat exchanging part, heat can be carried out between first heat exchanging part and the second heat exchanging part
Exchange, the first heat exchanging part of second heat exchanger be arranged at First Heat Exchanger outlet with first, the
Pipeline between two electronic expansion valve inlets, the second heat exchanging part of second heat exchanger is arranged at first,
Pipeline between two evaporator outlets and suction port of compressor；First evaporator, the second evaporator are with parallel connection side
Formula is set, and first electric expansion valve is set in a series arrangement with the first evaporator, and second electronics is swollen
Swollen valve is set in a series arrangement with the second evaporator, and the air-conditioning system can adjust first electronics respectively
The aperture of expansion valve, the second electric expansion valve, first electric expansion valve, the second electric expansion valve are upper
Adjusted after electricity before aperture, the init state information stored according to air-conditioning system is completed with original position information
Initialization switching, the first, second electric expansion valve state can be adjusted to initialize completion status, should
First, second electric expansion valve can obtain respective initial position message.
2. air-conditioning system according to claim 1, it is characterised in that the heat-exchange system is HVAC
Air conditioner cooling system, the heat-exchange system also includes the 3rd electric expansion valve, cooler, the 3rd electronics
Expansion valve, cooler are located at the First Heat Exchanger and exported between suction port of compressor, the cooler and the
First, the second evaporator is arranged in parallel.
3. air-conditioning system according to claim 2, it is characterised in that the 3rd electric expansion valve
Set in a series arrangement with cooler, control battery to cool down by adjusting the 3rd electronic expansion valve opening
The refrigerant flow of branch road where device, the cooler is heat generating components cooling element, can be heat generating components
Cooling, the 3rd electric expansion valve after the power-up, regulation aperture before, stored according to air-conditioning system
Init state information completes initialization switching with original position information, and the original position of the 3rd electric expansion valve is made
For its initial position.
4. a kind of control system of air-conditioning system, including air-conditioner controller and for controlling electric expansion valve
The electric control part of action, the air-conditioner controller is the control centre of the air-conditioning system, for receiving and solving
The control signal and/or input information of Vehicular system or control panel are analysed, and the control for parsing generation is believed
Number electric expansion valve is issued, the electric expansion valve controls electronic expansion valve events according to the control signal；
The air-conditioner controller or the electric control part include memory cell, and the memory cell can store institute
State the positional information and initialization completion status information of electric expansion valve；
The positional information and initialization completion status letter provided according to the air-conditioner controller memory cell
Breath, obtains initialization switching signal, and the electric control part controls the electricity according to the initialization switching signal
Sub- expansion valve completes init state switching.
5. the control system of air-conditioning system according to claim 4, it is characterised in that the storage
Unit is arranged at the central processing module of the electric control part of the air-conditioner controller or electric expansion valve, and this is deposited
Storage unit is formed for non-volatile memory element, when air-conditioner controller starts electric expansion valve power down program, institute
At the beginning of stating the memory cell of air-conditioner controller or the electric control part and at least can storing the electric expansion valve
Beginningization completion status and positional information；When air-conditioner controller starts electric expansion valve power-up routine, according to institute
State memory cell stored information, the electric expansion valve by the positional information stored be set to present position values,
Switch oneself state to initialization completion status, so as to complete init state switching.
6. the control system of the air-conditioning system according to claim 4 or 5, it is characterised in that described
The initialization switching signal is supplied to the electricity by air-conditioner controller by local network connection control model
Part is controlled, the initialization switching signal includes init state handover information and stores original position information, its
Described in electric control part receive the init state handover information, electric expansion valve state is switched to initially
Change completion status, the electric control part receives and stores original position information, is set to electric expansion valve present bit
Put value；
Or, it is initialization completion status that the electric control part, which can read stored state value, by electronics
Expansion valve state switches to initialization completion status, and the electric control part can read stored original position information,
And it is set to electric expansion valve present position values；
Or, it is initialization completion status that the air-conditioner controller, which can read stored state value, described
Air-conditioner controller can read stored original position information, and there is provided enter to be about to state to electric control part to switch to just
Beginning state, stored original position information is set to present position values.
7. the control system of air-conditioning system according to claim 6, it is characterised in that the air-conditioning
Controller is supplied to the initialization switching signal of electric expansion valve to be LIN signals, the initialization switching signal
At least include two LIN data bytes, each LIN data bytes are described to be stored containing eight data bit
Original position information representation is:All 8 positions of nth byte and the N+1 byte it is low two (bit0 and
Bit1), the init state handover information is expressed as：High two (bit6 and the bit7) of N+1 bytes,
Wherein N is equal to or more than 1, and the air-conditioner controller can descend hair-like by the initialization switching signal
State switches and stored the electric control part of original position information electron expansion valve.
8. the control system of air-conditioning system according to claim 6, it is characterised in that the air-conditioning
Controller, input information and/or sensor information for receiving air-conditioning system master control borad；The electric control part
Point, for receiving and parsing through input information and/or sensor information that the air-conditioner controller is sent, and tie
The control program and/or electric control part set in advance for electric expansion valve that conjunction electric control part is stored is deposited
The feedback information of storage, can obtain control signal, and the control signal is converted into electronic expansion by computing
The electricity that valve is able to carry out, can control the electric expansion valve by the electricity；The air-conditioner controller leads to
Cross and set the memory cell to store electronic expansion valve position signal and initialization completion status information, be used for
Electric control part is sent to, the control signal at least includes initialization switching signal, or the electric control part
The feedback information is stored by setting memory cell at least to be stored including the electric control part memory cell
Initialization completion status information and positional information, for electric control part read；
Or, the air-conditioner controller is responsible for receiving the input information and/or sensor of air-conditioning system master control borad
Information, and the control program set in advance for electric expansion valve that combination air-conditioner controller is stored, and/
Or the feedback information of air-conditioner controller storage, control signal can be obtained by computing, and the control is believed
Number it is emitted to electric control part；The electric control part, for the control signal to be converted into electric expansion valve energy
The electricity enough performed, can control the electric expansion valve by the electricity；The air-conditioner controller is stored
Feedback information at least include the initialization completion status information that is stored of the air-conditioner controller memory cell and
Positional information.
9. the control system of air-conditioning system according to claim 7, it is characterised in that the air-conditioning
Controller is provided with central processing module, and the electric control part of the electric expansion valve is provided with LIN transmitting-receiving moulds
Block, central processing module, drive control module and drive module, wherein the bus transceiver module will be detected
LIN buses on signal be sent to central processing module, the central processing module is responsible for receiving and solved
Analyse the control information from air-conditioning system master control borad, send out the control signal for electric expansion valve after parsing
Give drive control module, the current location information of record or storage electric expansion valve, will be tied with the parsing
Really corresponding feedback signal is sent to LIN buses, the memory cell by the bus transceiver module
The integrally disposed central processing module in the electric control part, the control signal includes the initialization switching
Signal, or the memory cell are arranged at the central processing module of the air-conditioner controller；
Or, the air-conditioner controller is provided with central processing module, and the electric control part is provided with driving control
Molding block, drive module, wherein the central processing module of the air-conditioner controller be responsible for receive input information and
/ or sensor information, the control signal for electric expansion valve is produced through computing, and be sent to drive control
Module, record or the current location information for storing electric expansion valve, the memory cell collection of the air-conditioner controller
Into the central processing module for being arranged at the air-conditioner controller；
The stepper drive control module is responsible for receiving the center processing of the air-conditioner controller or electric control part
Module comes the control signal being controlled to electric expansion valve, and is transferred to drive module, the driving mould
Block provides electric signal for the electronic coil, and the electric signal meets the control signal and requires that the electric signal leads to
Cross and act on electronic coil and can control pintle action.
10. a kind of control method of air-conditioning system, includes the control of the electric expansion valve of the control air-conditioning system
Method processed, the control method of the electric expansion valve includes：
When the air-conditioner controller starts the control electric expansion valve power down program, the air-conditioner controller
Or the electric control part stores the electric expansion valve initialization completion status by built-in storage unit
With positional information, the electric expansion valve dead electricity is controlled afterwards, so that the electric expansion valve is in power up phase
Complete init state switching.
11. the control method of air-conditioning system according to claim 10, it is characterised in that the sky
When adjusting the controller startup control electric expansion valve power-up routine, the electricity stored according to the memory cell
Sub- expansion valve initialization completion status and positional information, the electronic expansion Vavle switching oneself state is initialization
Completion status, institute's storage location information is set to present position values, so as to complete init state switching.
12. the control method of air-conditioning system according to claim 11, it is characterised in that the sky
When adjusting the controller startup control electric expansion valve power-up routine, the control method includes：
Electricity on the air-conditioner controller control electric expansion valve；
The air-conditioner controller connects control model by state switching with storing original position by local network
Information is sent to the electric expansion valve；Then, the electric control part of the electric expansion valve is according to receiving
Init state handover information carries out state switching, and electric expansion valve state is switched into initialization completion status；
The electric control part of the electric expansion valve is received and stores original position information, and stored original position information is put
For present position values, the electric expansion valve init state switching is completed；
Or, the electric control part is completed from reading state value at the memory cell of the electric control part for initialization
State so that the electric expansion valve state is initialization completion status；Electric control part institute reading position
Information is set to electric expansion valve present position values；
Or, the air-conditioner controller is to initialize from reading state value at the memory cell of the air-conditioner controller
Completion status, the electric expansion valve state is caused to be initialization completion status, the air-conditioner controller is read
Positional value, the positional value read is set to present position values；
The electric expansion valve init state switching is completed.
13. the control method of air-conditioning system according to claim 12, it is characterised in that described
When air-conditioner controller starts the control electric expansion valve power down program, the control method includes：
The air-conditioner controller connects control model by local network and communicated with the electric expansion valve,
The memory cell of the air-conditioner controller stores the electronic expansion valve position and init state；Institute is controlled again
State electric expansion valve normal powering down；
Or, the air-conditioner controller connects control model by local network and sends preservation instruction, controls institute
The memory cell for stating electric expansion valve stores the electronic expansion valve position and init state；The electronics is swollen
Swollen valve performs transmission preservation completion after storage and feeds back signal to the air-conditioner controller, then controls the electronics swollen
Swollen valve normal powering down；
Or the memory cell of the air-conditioner controller stores the electronic expansion valve position and init state,
The electric expansion valve normal powering down is controlled again.
14. the control method of air-conditioning system according to claim 13, it is characterised in that described
When air-conditioner controller starts the control electric expansion valve power down program, the control method includes：
The air-conditioner controller or electric control part send initialization control signal electron expansion valve, control electricity
Sub- expansion valve is initialized, after the completion of initialization, then control the air-conditioner controller memory cell or
The memory cell of person's electric control part feeds back the status information come to the electric expansion valve and positional information is entered
Row storage.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169988.3A CN107228450B (en) | 2016-03-23 | 2016-03-23 | Air conditioning system, and control system and control method thereof |
| EP17769495.7A EP3435004A4 (en) | 2016-03-23 | 2017-05-17 | Heat exchange system, air conditioning control system, and air conditioning system control method |
| JP2018504128A JP6940478B2 (en) | 2016-03-23 | 2017-05-17 | Air conditioning control system and air conditioning system control method |
| PCT/CN2017/084687 WO2017162218A1 (en) | 2016-03-23 | 2017-05-17 | Heat exchange system, air conditioning control system, and air conditioning system control method |
| US15/736,703 US10823448B2 (en) | 2016-03-23 | 2017-05-17 | Heat exchange system, air conditioning control system, and air conditioning system control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169988.3A CN107228450B (en) | 2016-03-23 | 2016-03-23 | Air conditioning system, and control system and control method thereof |
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| CN107228450A true CN107228450A (en) | 2017-10-03 |
| CN107228450B CN107228450B (en) | 2020-04-28 |
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| CN201610169988.3A Active CN107228450B (en) | 2016-03-23 | 2016-03-23 | Air conditioning system, and control system and control method thereof |
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| CN110398083A (en) * | 2018-04-25 | 2019-11-01 | 杭州三花研究院有限公司 | Heat management system and its control method |
| CN110758100A (en) * | 2019-09-18 | 2020-02-07 | 北京汽车集团有限公司 | Vehicle control system and method and vehicle |
| CN110966811A (en) * | 2018-09-28 | 2020-04-07 | 杭州三花研究院有限公司 | Control method and control system |
| CN111712660A (en) * | 2017-12-26 | 2020-09-25 | 株式会社不二工机 | Electric valve control device and electric valve device provided with same |
| CN112776556A (en) * | 2019-11-11 | 2021-05-11 | 郑州宇通客车股份有限公司 | Vehicle fixed-displacement single-compressor double-area air conditioning system and liquid impact prevention method thereof |
| CN113280520A (en) * | 2021-04-26 | 2021-08-20 | 南京师范大学 | Fixed-frequency multi-connected freezing and refrigerating equipment |
| CN114110923A (en) * | 2021-11-29 | 2022-03-01 | 珠海格力电器股份有限公司 | Equipment control method, circuit, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107813677A (en) * | 2017-11-01 | 2018-03-20 | 湖南长丰汽车空调有限公司 | A kind of automatic air condition HVAC assembly apparatus |
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| CN113280520A (en) * | 2021-04-26 | 2021-08-20 | 南京师范大学 | Fixed-frequency multi-connected freezing and refrigerating equipment |
| CN114110923A (en) * | 2021-11-29 | 2022-03-01 | 珠海格力电器股份有限公司 | Equipment control method, circuit, device, equipment and storage medium |
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