CN110049887A - Vehicle air attemperation apparatus - Google Patents
Vehicle air attemperation apparatus Download PDFInfo
- Publication number
- CN110049887A CN110049887A CN201780077716.3A CN201780077716A CN110049887A CN 110049887 A CN110049887 A CN 110049887A CN 201780077716 A CN201780077716 A CN 201780077716A CN 110049887 A CN110049887 A CN 110049887A
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- aforementioned
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- refrigerant
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- 238000010438 heat treatment Methods 0.000 claims abstract description 170
- 239000003507 refrigerant Substances 0.000 claims abstract description 139
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 230000006837 decompression Effects 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 239000003595 mist Substances 0.000 abstract description 10
- 239000002826 coolant Substances 0.000 description 82
- 238000010257 thawing Methods 0.000 description 61
- 239000007789 gas Substances 0.000 description 44
- 238000009423 ventilation Methods 0.000 description 15
- 238000004378 air conditioning Methods 0.000 description 14
- 238000004781 supercooling Methods 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 241000937378 Everettia interior Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00921—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct
-
- 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
- B60H1/00835—Damper doors, e.g. position control
- B60H1/00842—Damper doors, e.g. position control the system comprising a plurality of damper doors; Air distribution between several outlets
-
- 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
- B60H1/00871—Air directing means, e.g. blades in an air outlet
-
- 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
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00128—Electric heaters
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The vehicle air attemperation apparatus that can expeditiously eliminate the mist of front window in the case where selecting DEF blow-out mode is provided.Vehicle air attemperation apparatus (1) has compressor (2), air flow path (3), radiator (4), heat dump (9), outdoor heat exchanger (7).The DEF blow-out mode that there is controller the air that will be supplied into car room at least to blow out to the inside of the front window of vehicle (50), in the case where selecting the DEF blow-out mode, execute heating mode, aforementioned heating mode is, make the refrigerant heat release being discharged from compressor (2) by radiator (4), after the refrigerant decompression after heat release, make its heat absorption by outdoor heat exchanger (7).
Description
Technical field
The present invention relates to the vehicle air attemperation apparatus of the heating pump mode of air conditioning in the car room by vehicle.
Background technique
Due to showing for environmental problem in recent years, cause hybrid vehicle, electric car universal.Also, as can
Applied to the air attemperation apparatus of such vehicle, following device is developed: having refrigerant compression the compressor being discharged, set
It is placed on the inside of car room on the inside of making the exothermic radiator of refrigerant, being set to car room the heat dump for making refrigerant absorb heat, is set to vehicle
To make the outdoor heat exchanger of refrigerant heat release or heat absorption, can be switched to makes the refrigerant being discharged from compressor in radiator for outside
Place's heat release and make exothermic refrigerant absorb heat at outdoor heat exchanger at the radiator heating mode, make from compressor discharge
Refrigerant at radiator heat release and make what at radiator exothermic refrigerant absorbed heat at heat dump and outdoor heat exchanger to remove
Wet heating mode, make from compressor be discharged refrigerant at radiator and outdoor heat exchanger heat release and inhale it at heat dump
Heat dehumidifying cold air mode, make from compressor discharge refrigerant at outdoor heat exchanger heat release and so that it is absorbed heat at heat dump
Cold air mode (for example, referring to patent document 1).
Patent document 1: Japanese Unexamined Patent Publication 2014-213765 bulletin.
Patent document 2: Japanese Unexamined Patent Publication 2014-8858 bulletin.
In dehumidifying heating mode above-mentioned, dehumidifying while heating is carried out in car room, it thus will the low outer gas such as winter
The mist of the window (front window etc.) of vehicle is eliminated when warm, but the amount to dehumidify running efficiency compared with heating mode deteriorates.In addition, also setting
Such auxiliary heating mechanism in patent document 1 is set, it will be by into car room by auxiliary heating mechanism in dehumidifying heating mode
The method that the air of blowout heats to make refrigerant by heat dump heat absorption to dehumidify, but in this case, also for electricity is made
Hot-air heater (ptc heater etc.) generates heat and consumes electric power, so running efficiency significantly deteriorates.
On the other hand, FOOT (foot: to underfooting blow out air), VENT (ventilation: to the chest of occupant are formed in car room
Blow out air), each blow-off outlet of DEF (defrosting: to blow out air on the inside of front window etc.), pass through the manual behaviour of automatic mode or button
Make, can select the FOOT blow-out mode from FOOT blow-off outlet blow out air, from VENT blow-off outlet blow out VENT blow-out mode,
Each blow-out mode of the B/L blow-out mode, the DEF blow-out mode blown out from DEF blow-off outlet that are blown out from the both sides of VENT and FOOT,
But in the case where selecting DEF blow-out mode, if the temperature (temperature of inside) of front window can be made to be car room by the air of blowout
More than the dew-point temperature of interior air, then the mist of front window can be eliminated.
Summary of the invention
The present invention is made to solve previous technical problem, is blown it is intended that providing one kind in selection DEF
The vehicle air attemperation apparatus that can be expeditiously eliminated the mist of front window in the case where mode out.
Vehicle air attemperation apparatus of the invention has compressor, air flow path, radiator, heat dump, outdoor heat
Exchanger, control device, aforementioned compressor compression refrigerant, aforementioned air logical circulation road feeds to the air circulation supplied in car room, preceding
Radiator is stated for heating refrigerant heat release by the air supplied out of air circulation road direction car room, aforementioned heat dump is for making
Refrigerant heat absorption is cooling by the air supplied out of air circulation road direction car room, and aforementioned outdoor heat exchanger is set to outside car room,
Aforementioned vehicle air attemperation apparatus is characterized in that control device has the air that will be supplied into car room at least to vehicle
The DEF blow-out mode blown out on the inside of front window in the case where selecting the DEF blow-out mode, executes heating mode, aforementioned heating mode
To make the refrigerant heat release being discharged from compressor by radiator, after the refrigerant decompression after heat release, by outdoor heat exchange
Device makes its heat absorption.
The vehicle air attemperation apparatus of the invention of technical solution 2 is that in the present invention as stated above, control device is in heating mode
In the temperature based on the air blown out into car room target value i.e. target blowout temperature TAO or from the target blow out temperature
The operating of the derived value control compressor of TAO, and there are multiple blow-out modes including DEF blow-out mode, it is blown in selection DEF
Out in the case where mode, compared with when selecting other blow-out modes, improves target and blow out temperature TAO.
The vehicle air attemperation apparatus of the invention of technical solution 3 is in above-mentioned each invention, to have for switching refrigerant
Flow path flow passage selector device, foregoing control device by control flow passage selector device, by multiple fortune including heating mode
Rotary-die type switches to execute, also, in the operation mode other than heating mode in the state of operating, blows out mould in selection DEF
In the case where formula, heating mode is switched to.
The vehicle air attemperation apparatus of the invention of technical solution 4 is that in the present invention as stated above, control device is blown out in DEF
Operation mode is fixed into heating mode in mode.
The vehicle air attemperation apparatus of the invention of technical solution 5 is, in the invention of technical solution 3 or technical solution 4,
Control device has dehumidifying heating mode as operation mode, and aforementioned dehumidifying heating mode is, makes by radiator by from compression
The refrigerant heat release of machine discharge makes its heat absorption by heat dump and outdoor heat exchanger, at this after the refrigerant decompression after heat release
In the state of operating in the heating mode that dehumidifies, in the case where selecting DEF blow-out mode, heating mode is switched to.
The vehicle air attemperation apparatus of the invention of technical solution 6 is, in the invention of technical solution 3 or technical solution 4,
Has the assisted heating device of the air heating for will supply out of air circulation road direction car room, control device has dehumidifying warm
For gas mode as operation mode, aforementioned dehumidifying heating mode is so that the refrigerant being discharged from compressor is not flowed to radiator and flow to
Outdoor heat exchanger makes its heat release, after the refrigerant decompression after heat release, by heat dump makes its heat absorption, and make auxiliary plus
Thermal fever, in the state of the dehumidifying heating mode operation, in the case where selecting DEF blow-out mode, switches to heating
Mode.
Invention effect
According to the present invention, having compressor, air flow path, radiator, heat dump, outdoor heat exchanger, control device
In vehicle air attemperation apparatus, aforementioned compressor compression refrigerant, aforementioned air logical circulation road feeds to the air stream supplied in car room
Logical, aforementioned radiator is preceding for heating refrigerant heat release by the air supplied from aforementioned air flow path into aforementioned car room
Heat dump is stated for making refrigerant heat absorption by the air supplied out of air circulation road direction car room cooling, aforementioned outdoor heat exchanger
It is set to outside car room, is selecting the DEF blow-out mode blown out on the inside of the front window by the air supplied into car room at least to vehicle
In the case where, control device executes heating mode, and aforementioned heating mode is to make the refrigerant being discharged from compressor by radiator
Heat release makes its heat absorption by outdoor heat exchanger, so can make the car room on the inside of front window after the refrigerant decompression after heat release
The temperature of interior air is quickly and efficiently in that dew-point temperature or more eliminates the mist of front window.
In this case, being not based on as the dehumidifying heating mode of the invention of technical solution 5, technical solution 6
The dehumidifying of heat dump, so the unfavorable condition for also avoiding running efficiency from deteriorating, can efficiently eliminate the mist of front window, DEF is blown
Consumption electric power when mode can also be reduced out.
In addition, the control device as the invention of technical solution 2 is based on the sky blown out in heating mode into car room
The target value of the temperature of gas, that is, target blowout temperature TAO or the fortune for being worth control compressor derived from target blowout temperature TAO
Turn, and there are multiple blow-out modes including DEF blow-out mode, in the case where selecting DEF blow-out mode, if with it is selected
It is compared when his blow-out mode, improves target and blow out temperature TAO, then heated by the radiator under heating mode, make to blow out mould in DEF
It is got higher, the mist of front window can be eliminated rapidly to the temperature of the air of blowout on the inside of front window in formula.
Here, in this kind of vehicle air attemperation apparatus, the flow path by controlling the flow path for switching refrigerant switches
Device, control device switching include multiple operation modes of heating mode to execute, but such as the invention of technical solution 3 in the situation
In the case that such control device selects DEF blow-out mode in the state of the operation mode operating other than heating mode, if
Heating mode is switched to, then compared with other operation modes such as the dehumidifying heating mode of the invention of technical solution 5, technical solution 6
Expeditiously the mist of front window can be eliminated.
In this case, as technical solution 4 invention control device operation mode is fixed into DEF blow-out mode it is warm
Gas mode also can be avoided operation mode and switch to operating other than heating mode thus in the state of being in DEF blow-out mode
The unfavorable condition of mode.
Detailed description of the invention
Fig. 1 is the structure chart (embodiment 1) using the vehicle air attemperation apparatus of one embodiment of the present invention.
Fig. 2 is the block diagram of the electric loop of the controller of the vehicle air attemperation apparatus of Fig. 1.
Fig. 3 is the control block diagram of the compressor control of the controller about Fig. 2.
Fig. 4 is the control block diagram of the outdoor expansion valve control of the controller about Fig. 2.
Fig. 5 is the structure chart (embodiment 2) using the vehicle air attemperation apparatus of other embodiments of the invention.
Specific embodiment
Hereinafter, being based on attached drawing, the embodiment that the present invention will be described in detail.
Embodiment 1
Fig. 1 shows the structure charts of the vehicle air attemperation apparatus 1 of application one embodiment of the invention.Using implementation of the invention
The vehicle of example is the electric car (EV) not equipped with engine (internal combustion engine), is driven by electricity traveling by by what is charged to battery
Electric motor is come advance (not shown), vehicle air attemperation apparatus 1 of the invention also being driven by electricity by battery.
That is, the vehicle air attemperation apparatus 1 of the embodiment cannot generate by engine waste heat generate heating electric car in,
Heating mode is carried out by using the heat pump operating of coolant loop, in turn, optionally switches dehumidifying heating mode, inside
Circulation pattern, dehumidifying cold air mode, cold air mode, auxiliary heater independent mode each operation mode execute.
In addition, electric car is not limited to as vehicle, for the institute for all using the electric motor of engine and traveling
Hybrid vehicle is called, the present invention is also effective, in turn, it is clear that the common automobile advanced by engine can also be answered
With.
The vehicle air attemperation apparatus 1 of embodiment carry out electric car the indoor air conditioning of vehicle (heating, cold air,
Dehumidifying and ventilation), by compressor 2, radiator 4, outdoor expansion valve (decompressor) 6, outdoor heat exchanger 7, indoor expansion valve
(decompressor) 8, heat dump 9, accumulator 12 etc. are sequentially connected with to constitute coolant loop R, aforementioned compression by coolant piping 13
2 compression refrigerant of machine, to be DYN dynamic, aforementioned radiator 4 is set to vehicle room air by the sky of the HVAC unit 10 of aeration cycle
In current path 3, the refrigerant for the high temperature and pressure being discharged from compressor 2 is flowed into via coolant piping 13G, makes the refrigerant into car room
Heat release, aforementioned outdoor expansion valve (decompressor) 6 is by constituting the motor-driven valve of refrigerant decompression expansion in heating, aforementioned outdoor heat
Exchanger 7 is functioned in cold air as radiator, be should be used as evaporator in heating and is functioned in refrigerant and outer gas
Between carry out heat exchange, aforementioned indoor expansion valve (decompressor) 8 is by constituting the motor-driven valve of refrigerant decompression expansion, aforementioned heat absorption
Device 9 is set in air flow path 3, so that refrigerant is absorbed heat inside and outside car room in cold air and when dehumidifying.
In addition, being provided with outdoor draft fan 15 in outdoor heat exchanger 7.The outdoor draft fan 15 is configured to, by will be outer
Gas is forcibly divulged information to outdoor heat exchanger 7 to make outer gas and refrigerant heat exchange, even if in parking, (speed is as a result,
0km/h) outer gas is also divulged information to outdoor heat exchanger 7.
In addition, outdoor heat exchanger 7 successively has liquid-storage drying portion 14 and supercooling portion 16 in refrigerant downstream side, with outdoor
The coolant piping 13A of the refrigerant exit connection of heat exchanger 7 is in cold air via open solenoid valve 17 and liquid-storage drying portion 14
Connection, the outlet in supercooling portion 16 is connect via check-valves 18 with indoor expansion valve 8.In addition, liquid-storage drying portion 14 and supercooling
Portion 16 constructively constitutes a part of outdoor heat exchanger 7, and 8 side of indoor expansion valve of check-valves 18 is set as forward.
In addition, the coolant piping 13B between check-valves 18 and indoor expansion valve 8 is by cold with the outlet side positioned at heat dump 9
Matchmaker is piped 13C and is arranged with heat exchange relationship, and inner heat exchanger 19 is made of the two.Room is flowed by coolant piping 13B as a result,
The refrigerant that the refrigerant of interior expansion valve 8 is configured to the low temperature come out from heat dump 9 is cooling (supercooling).
In addition, the coolant piping 13A fork come out from outdoor heat exchanger 7, the coolant piping 13D of the fork is via heating
The solenoid valve 21 of Shi Kaifang is connected to connection with the coolant piping 13C in the downstream side of inner heat exchanger 19.Coolant piping 13C with
Accumulator 12 connects, and accumulator 12 is connect with the refrigerant suction side of compressor 2.In addition, the refrigerant in the outlet side of heat dump 9 is matched
Pipe 13C and refrigerant downstream side in inner heat exchanger 19, than being connect with the junction of two streams of coolant piping 13D by refrigerant upstream side
There is evaporating pressure to adjust valve 11.
In turn, the coolant piping 13E of the outlet side of radiator 4 is bifurcated into coolant piping 13J in the front of outdoor expansion valve 6
With coolant piping 13F, the coolant piping 13J of a side of fork via outdoor expansion valve 6 and outdoor heat exchanger 7 refrigerant inlet
Connection.In addition, downstream of the coolant piping 13F of another party of fork via the solenoid valve 22 and check-valves 18 open in dehumidifying
The coolant piping 13B of side is connected to connection.Coolant piping 13F becomes relative to outdoor expansion valve 6 and outdoor heat exchanger 7 as a result,
The bypass loop that is connected in parallel of series loop.Solenoid valve 22 is connect with the midway of the bypass loop (coolant piping 13F).And
And these solenoid valves 17,21,22 constitute flow passage selector device of the invention.
In addition, the air flow path 3 in the air upstream side of heat dump 9, is formed with outer gas suction inlet and interior aspiration entrance
Each suction inlet (in Fig. 1 by suction inlet 25 as represent indicate), the suction inlet 25 be provided with sucking switching air door 26, it is aforementioned
The air imported into air flow path 3 is switched to i.e. interior gas (the interior gas cyclic module of the indoor air of vehicle by sucking switching air door 26
Formula) and car room outside air, that is, outer gas (outer gas introduction model).In turn, in the air downstream side of sucking switching air door 26, if
It is equipped with the indoor blower (air blower) 27 for giving the interior gas imported, outer gas to air flow path 3.
In addition, 23 be the assisted heating device as the vehicle air attemperation apparatus 1 for being set to embodiment in Fig. 1
Auxiliary heater.The auxiliary heater 23 is made of ptc heater (hot plate) in embodiment, relative to air stream
The flowing of the air of access 3 is set in the air flow path 3 as the air downstream side of radiator 4 in this embodiment.
Also, if auxiliary heater 23 (assisted heating device) is energized and generates heat (work), and this is so-called heating core, supplements vehicle
Indoor heating.In this way, if by auxiliary heater 23 relative to the air of air flow path 3 flow arrangement in radiator 4
Downstream side, then radiator 4 is eliminated from the unfavorable condition that the air to be warmed due to auxiliary heater 23 is absorbed heat.Thereby, it is possible to
The deterioration of the running efficiency of vehicle air attemperation apparatus 1 is preventive from possible trouble.
Here, the ratio heat dump 9 of HVAC unit 10 is by the air flow path 3 of downwind side (air downstream side) by spaced walls
10A is divided, and forms heating heat exchange paths 3A and the bypass path 3B bypassed, aforementioned radiator 4 and auxiliary heater
23 are configured in heating heat exchange paths 3A.In addition, being provided in the air flow path 3 of the air upstream side of radiator 4
Air blender door 28, the adjustment of aforementioned air blender door 28 will be flowed into the air flow path 3 and by after heat dump 9
Air (interior gas, outer gas) in air flow path 3 is logical with radiator 4, the auxiliary heater 23 in heat exchange paths 3A to heating
The ratio of wind.
In turn, FOOT (foot) blowout is formed in the HVAC unit 10 of radiator 4 and the downwind side of auxiliary heater 23
Each blow-off outlet of mouth 29A, VENT (ventilation) blow-off outlet 29B, DEF (defrosting) blow-off outlet 29C.FOOT blow-off outlet 29A be for
The blow-off outlet of the indoor underfooting blow out air of vehicle.In addition, VENT blow-off outlet 29B is for the indoor occupant's chest of vehicle, face
The blow-off outlet of blow out air near portion.Also, DEF blow-off outlet 29C is for front glass 70, side window (at least front window to vehicle
70) blow-off outlet of inside blow out air.Also, at FOOT blow-off outlet 29A, VENT blow-off outlet 29B and DEF blow-off outlet 29C points
It is not provided with FOOT blowout damper 31A, VENT blowout damper 31B and DEF blowout damper of the blowout amount of control air
Each blowout damper of 31C.
In addition, aftermentioned controller 32 is configured to, have the FOOT blow-out mode from FOOT blow-off outlet 29A blow out air,
It is blown from the VENT blow-out mode of VENT blow-off outlet 29B blow out air, from the both sides of VENT blow-off outlet 29B and FOOT blow-off outlet 29A
The B/L blow-out mode of air, the DEF blow-out mode blown out from DEF blow-off outlet 29C out, in automatic mode or based on to aftermentioned
The manual operation in air conditioning operation portion 53 selects each blow-out mode.Particularly, it is configured to, if being set to air conditioning operation portion
53 DEF button 53A is by occupant's opening operation, then blow-out mode is switched to DEF blow-out mode by controller 32, send interior
The air quantity (the quality air quantity Ga of aftermentioned air) of blower 27 increases.
It then, 32 is controller (ECU) as control device in Fig. 2.The controller 32 (control device) is by as tool
The microcomputer of an example of the computer of standby processor is constituted, and input is connected to outside air temperature sensor 33, outer gas humidity
Sensor 34, HVAC inlet temperature sensor 36, interior gas temperature sensor 37, interior gas humidity sensor 38, interior CO2Concentration passes
Sensor 39, discharge pressure sensor 42, discharge temperature sensor 43, suction pressure sensor 44, is put blowout temperature sensor 41
Hot device temperature sensor 46, radiator pressure sensor 47, heat sink temperature sensor 48, heat dump pressure sensor 49, day
According to sensor 51, vehicle speed sensor 52, air conditioning (air-conditioning) operation portion 53, outdoor heat exchanger temperature sensor 54, outdoor
Each output of pressure heat exchanger sensor 56, aforementioned outside air temperature sensor 33 detects the outside air temperature (Tam) of vehicle, aforementioned
Outer gas humidity sensor 34 detects outer gas humidity, and the aforementioned detection of HVAC inlet temperature sensor 36 is by from suction inlet 25 to air stream
The temperature for the air that access 3 sucks, aforementioned interior gas temperature sensor 37 detects the temperature of the indoor air of vehicle (interior gas), aforementioned interior
Gas humidity sensor 38 detects the humidity of the indoor air of vehicle, aforementioned interior CO2Concentration sensor 39 detects the indoor dioxy of vehicle
Change concentration of carbon, aforementioned blowout temperature sensor 41 detects the temperature (blowout temperature TAI) of the air blown out into car room, aforementioned
Discharge pressure sensor 42 detects the discharge refrigerant pressure (discharge pressure Pd) of compressor 2, and aforementioned discharge temperature sensor 43 is examined
The discharge refrigerant temperature of measured compressed machine 2, aforementioned suction pressure sensor 44 detects the sucking refrigerant pressure of compressor 2, aforementioned to put
Hot device temperature sensor 46 detect radiator 4 temperature (by the temperature of the temperature or radiator 4 itself of the air of radiator 4:
Radiator temperature TCI), aforementioned radiator pressure sensor 47 detects the refrigerant pressure of radiator 4 (in radiator 4 or just from putting
Hot device 4 come out after refrigerant pressure: radiator pressure PCI), aforementioned heat sink temperature sensor 48 detects the temperature of heat dump 9
It spends (by the temperature of the temperature or heat dump 9 itself of the air of heat dump 9: heat sink temperature Te), aforementioned heat dump pressure passes
Sensor 49 detect heat dump 9 refrigerant pressure (in heat dump 9 or just from heat dump 9 come out after refrigerant pressure), aforementioned day
According to sensor 51 for detecting to the indoor sunshine amount of vehicle, e.g. photoelectric sensor formula, aforementioned vehicle speed sensor 52 is used for
The movement speed (speed) of vehicle is detected, aforementioned air adjusts (air-conditioning) operation portion 53 for setting set temperature, operation mode
Switching, aforementioned outdoor heat exchanger temperature sensor 54 detects the temperature of outdoor heat exchanger 7 (just from outdoor heat exchanger 7
The temperature of the temperature or outdoor heat exchanger 7 of refrigerant after out itself), aforementioned outdoor heat exchanger pressure sensor 56 detects
Outdoor heat exchanger 7 refrigerant pressure (in outdoor heat exchanger 7 or just from outdoor heat exchanger 7 come out after refrigerant pressure
Power).
It is pressed in this case, being provided with the selection of the blow-out mode including aforementioned DEF button 53A in air conditioning operation portion 53
Button switches aforementioned DEF blow-out mode, VENT blow-out mode, FOOT blow-out mode, B/L by the opening operation of each button and blows out
Mode, but DEF button 53A is only illustrated in Fig. 2.In addition, the input of controller 32 is also connected with detection auxiliary heater 23
Temperature (by the temperature of the temperature or auxiliary heater 23 itself of the air of auxiliary heater 23: auxiliary heater temperature Tptc)
Auxiliary heater temperature sensor 50 output.
On the other hand, the output of controller 32 is connected with compressor 2, outdoor draft fan 15, indoor blower (air blower)
27, sucking switching air door 26, air blender door 28, each blowout damper 31A ~ 31C, outdoor expansion valve 6, indoor expansion valve 8,
Solenoid valve 22 (dehumidifying), solenoid valve 17 (cold air), each solenoid valve of solenoid valve 21 (heating), evaporating pressure adjustment valve 11, auxiliary
Heater 23.Also, controller 32 is controlled based on the output of each sensor and by setting that air conditioning operation portion 53 inputs
They.
In above structure, then illustrate the movement of the vehicle air attemperation apparatus 1 of embodiment.Controller 32 is at this
Switch heating mode, dehumidifying heating mode, internal circulation pattern, dehumidifying cold air mode, cold air mode, auxiliary heating in embodiment
Each operation mode of the independent mode of device executes.Firstly, being illustrated to each operation mode.
(1) heating mode
If being selected by controller 32 (automatic mode) or by the manual operation (manual mode) to air conditioning operation portion 53
Heating mode, then controller 32 is open by solenoid valve 21 (heating use), and solenoid valve 17 is closed.In addition, solenoid valve 22 is closed.
Also, compressor 2 and each pressure fan 15,27 are operated, air blender door 28 is in adjustment by from indoor blower 27
The air of blowout is by the radiator 4 and the state of ratio divulged information of auxiliary heater 23 into heating heat exchange paths 3A.By
This, the gas coolant for the high temperature and pressure being discharged from compressor 2 is flowed into radiator 4.Air in air flow path 3 is by putting
Hot device 4 is divulged information, so the air in air flow path 3 (when auxiliary heater 23 works, is put by the high temperature refrigerant in radiator 4
Hot device 4 and auxiliary heater 23) heating, on the other hand, the refrigerant in radiator 4 is captured heat and be cooled by air, condenses
Liquefaction.
After liquefied all refrigerants come out from radiator 4 in radiator 4, reached by coolant piping 13E, 13J outdoor
Expansion valve 6.The refrigerant flowed into outdoor expansion valve 6 flows into after being depressurized herein to outdoor heat exchanger 7.Flow into outdoor heat exchange
The refrigerant of device 7 passes through evaporation, traveling or the draw heat from the outer gas divulged information by outdoor draft fan 15.That is, coolant loop R becomes
Heat pump.Also, the refrigerant of the low temperature come out from outdoor heat exchanger 7 repeats following circulation: passing through coolant piping 13A and electromagnetism
Valve 21 and coolant piping 13D enter accumulator 12 from coolant piping 13C, and after this gas-liquid separation, gas coolant is inhaled by compressor 2
Enter.
That is, refrigerant is only evaporated in outdoor heat exchanger 7 from outer gas draw heat in the heating mode, inhaled with this
The heat taken heats the air in air flow path 3 by radiator 4.The air being heated passes through 23 quilt of auxiliary heater
It is blown out from blow-off outlet 29A ~ 29C, so, thus into the heating of running indoor.
Controller 32 blows out temperature TAO or blows out the target that temperature TAO is calculated according to the target and puts according to aftermentioned target
Hot device temperature TCO (target value of radiator temperature TCI) calculates the target radiator pressure PCO (target of radiator pressure PCI
Value), the refrigerant pressure (radiator based on the radiator 4 that target radiator pressure PCO, radiator pressure sensor 47 detect
Pressure PCI.The high-pressure of coolant loop R) control compressor 2 revolving speed.In addition, being detected based on radiator temperature sensor 46
Radiator temperature TCI and radiator pressure sensor 47 detect radiator pressure PCI control outdoor expansion valve 6 valve open
Degree controls the degree of subcooling (SC) of the refrigerant in the exit of radiator 4.
In embodiment, target radiator pressure PCO is calculated according to target radiator temperature TCO, but can also direct root
Target radiator pressure PCO is calculated according to target blowout temperature TAO, controls the revolving speed of compressor 2.In addition, in embodiment, it is aforementioned
Target radiator temperature TCO is substantially TCO=TAO, but controls and set limitation is arranged.
(2) dehumidify heating mode
Then, in dehumidifying heating mode, controller 32 is open by solenoid valve 22 in the state of above-mentioned heating mode.As a result,
A part by radiator 4 in the coolant piping 13E condensation refrigerant flowed is split, and a part is by solenoid valve 22 to cold
Matchmaker is piped 13F and flows into, and flows to indoor expansion valve 8 from coolant piping 13B by inner heat exchanger 19, remaining flow direction is outdoor swollen
Swollen valve 6.That is, a part of refrigerant being split is flowed into heat dump 9 after being depressurized by indoor expansion valve 8 to evaporate.
Controller 32 controls the valve opening of indoor expansion valve 8, so that by the degree of superheat of the refrigerant in the exit of heat dump 9
(SH) it maintains to be blown out due to the heat-absorbing action of the refrigerant generated by heat dump 9 from indoor blower 27 at set value, but at this time
Air in hydrogenesis and be attached to heat dump 9, so air is cooled and is dehumidified.It is split and to coolant piping
After the remaining refrigerant that 13J is flowed into is depressurized at outdoor expansion valve 6, evaporates, become from outer aspiration at outdoor heat exchanger 7
Heat.
The refrigerant evaporated at heat dump 9 repeats following circulation: successively adjusting by inner heat exchanger 19, evaporating pressure
Valve 11 and by coolant piping 13C with from coolant piping 13D refrigerant (refrigerant from outdoor heat exchanger 7) interflow after,
It is sucked by accumulator 12 to compressor 2.The air to be dehumidified by heat dump 9 passes through (23 adstante febre of auxiliary heater of radiator 4
For radiator 4 and auxiliary heater 23) during be reheated, so, thus into the dehumidifying heating of running indoor.
Controller 32 is based on the target radiator pressure PCO calculated according to target radiator temperature TCO and radiator pressure
The radiator pressure PCI (high-pressure of coolant loop R) that sensor 47 detects controls the revolving speed of compressor 2, and based on suction
The valve opening of temperature (heat sink temperature Te) the control outdoor expansion valve 6 for the heat dump 9 that hot device temperature sensor 48 detects.This
Outside, the temperature Te for the heat dump 9 that controller 32 is detected based on heat sink temperature sensor 48 opens evaporating pressure adjustment valve 11
(amplification flow path)/close (a little refrigerant flowing) prevents the temperature excessive descent of heat dump 9 and the unfavorable condition freezed.
(3) internal circulation pattern
Then, in internal circulation pattern, controller 32 is fully closed by outdoor expansion valve 6 in the state of above-mentioned dehumidifying heating mode
(full close position) and close solenoid valve 21.That is, the inside circulation pattern is dehumidifying heating mode by outdoor expansion valve 6
The state that the outdoor expansion valve 6 is fully closed is controlled, so in the present invention using the inside circulation pattern as dehumidifying heating mode
A part.
But by closing outdoor expansion valve 6 and solenoid valve 21, prevent inflow to the refrigerant of outdoor heat exchanger 7 and
The outflow of refrigerant from outdoor heat exchanger 7, so whole by the condensation refrigerant that radiator 4 is flowed in coolant piping 13E
Coolant piping 13F is flowed to by solenoid valve 22.Also, in the refrigerant of coolant piping 13F flowing from coolant piping 13B by internal
Heat exchanger 19 reaches indoor expansion valve 8.Refrigerant is flowed into heat dump 9 and is evaporated after depressurizing by indoor expansion valve 8.Pass through this
When heat-absorbing action, heat dump 9 is attached to from the hydrogenesis in the air that indoor blower 27 is blown out, so air quilt
It cools down and is dehumidified.
Following circulation is repeated by the refrigerant that heat dump 9 evaporates: successively being adjusted by inner heat exchanger 19, evaporating pressure
Valve 11 and coolant piping 13C flow, sucked by accumulator 12 to compressor 2.The air to be dehumidified by heat dump 9 is logical
It is reheated during crossing radiator 4, so, as a result, into the dehumidifying heating of running indoor, but in the inside circulation pattern
Between the radiator 4 (heat release) in the air flow path 3 of indoor and heat dump 9 (heat absorption), refrigerant is recycled, thus not into
The absorption of heat of the row from outer gas plays the heating ability with the consumption Dynamic response of compressor 2.All flow direction performance removes refrigerant
The heat dump 9 of wet effect, so dehumidifying effect is higher but heating ability is lower compared with above-mentioned dehumidifying heating mode.
Temperature or aforementioned radiator pressure PCI (high-pressure of coolant loop R) control of the controller 32 based on heat dump 9
The revolving speed of compressor 2.At this point, some fortune of the selection of controller 32 according to temperature or radiator pressure PCI based on heat dump 9
A lower side for obtained compressor rotating speed of target is calculated to control compressor 2.
(4) dehumidify cold air mode
Then, in dehumidifying cold air mode, controller 32 is open by solenoid valve 17, and solenoid valve 21 is closed.In addition, by solenoid valve
22 close.Also, compressor 2 and each pressure fan 15,27 are operated, air blender door 28 is blown in adjustment from indoor blower 27
The state for the ratio that air out is divulged information by the radiator 4 into heating heat exchange paths 3A.As a result, by from 2 row of compressor
The gas coolant of high temperature and pressure out is flowed into radiator 4.Air in air flow path 3 is divulged information to radiator 4, so empty
Air in current path 3 is heated by the high temperature refrigerant in radiator 4, and on the other hand, the refrigerant in radiator 4 is captured by air
Heat and be cooled, condensation liquefaction.
The refrigerant come out from radiator 4 reaches outdoor expansion valve 6 via coolant piping 13E, opens tendency ground by being had
The outdoor expansion valve 6 of control is flowed into outdoor heat exchanger 7.To outdoor heat exchanger 7 flow into refrigerant herein pass through traveling or
It is air-cooled by the outer gas divulged information by outdoor draft fan 15 and condense.It is passed through from the refrigerant that outdoor heat exchanger 7 comes out from coolant piping 13A
It crosses solenoid valve 17 and successively flows into liquid-storage drying portion 14, supercooling portion 16.Here, refrigerant is over cooled.
The refrigerant come out from the supercooling portion 16 of outdoor heat exchanger 7 enters coolant piping 13B by check-valves 18, passes through
Inner heat exchanger 19 reaches indoor expansion valve 8.After refrigerant is depressurized by indoor expansion valve 8, flows into and evaporate to heat dump 9.Root
Heat-absorbing action when accordingly is attached to heat dump 9 from the hydrogenesis in the air that indoor blower 27 is blown out, so empty
Gas is cooled and is dehumidified.
Following circulation is repeated by the refrigerant that heat dump 9 evaporates: successively by inner heat exchanger 19, evaporating pressure adjustment valve
11, accumulator 12 is reached via coolant piping 13C, is sucked by this by compressor 2.By the sky that heat dump 9 cools down and dehumidifies
Gas is reheated (emission capacity is lower compared with when with heating) during through radiator 4, so, thus into running indoor
Dehumidifying cold air.
The temperature (heat sink temperature Te) for the heat dump 9 that controller 32 is detected based on heat sink temperature sensor 48 controls pressure
The revolving speed of contracting machine 2, and the valve opening based on the high-pressure of aforementioned coolant loop R control outdoor expansion valve 6, to control heat release
The refrigerant pressure (radiator pressure PCI) of device 4.
(5) cold air mode
Then, in cold air mode, controller 32 makes the valve opening of outdoor expansion valve 6 in the state of above-mentioned dehumidifying cold air mode
For standard-sized sheet.It is flowed into as a result, by the gas coolant for the high temperature and pressure being discharged from compressor 2 to radiator 4.In air flow path 3
Air is not divulged information to radiator 4, so only passing through from here, the refrigerant come out from radiator 4 is reached by coolant piping 13E
Outdoor expansion valve 6.At this point, 6 standard-sized sheet of outdoor expansion valve, so refrigerant passes through coolant piping 13J by outdoor expansion valve 6, in this way
Ground is flowed into outdoor heat exchanger 7, here by advancing or being coagulated by the outer gas divulged information by outdoor draft fan 15 by air-cooled
Contracting liquefaction.Liquid-storage drying portion is successively flowed by solenoid valve 17 from the refrigerant that outdoor heat exchanger 7 comes out from coolant piping 13A
14, supercooling portion 16.Here, refrigerant is over cooled.
The refrigerant come out from the supercooling portion 16 of outdoor heat exchanger 7 enters coolant piping 13B by check-valves 18, passes through
Inner heat exchanger 19 reaches indoor expansion valve 8.After refrigerant is depressurized by indoor expansion valve 8, flows into and evaporate to heat dump 9.It is logical
After heat-absorbing action at this time, it is attached to heat dump 9 from the hydrogenesis in the air that indoor blower 27 is blown out, so empty
Gas is cooled.
Following circulation is repeated by the refrigerant that heat dump 9 evaporates: successively by inner heat exchanger 19, evaporating pressure adjustment valve
11, via coolant piping 13C, accumulator 12 is reached, is sucked by this to compressor 2.It is cooled down and be dehumidified by heat dump 9
Air not pass through radiator 4 in the case where blown out from each blow-off outlet 29A ~ 29C into car room, so, thus become into
The cold air of running indoor.In the cold air mode, the temperature for the heat dump 9 that controller 32 is detected based on heat sink temperature sensor 48
The revolving speed of (heat sink temperature Te) control compressor 2.
(6) the independent mode of auxiliary heater
In addition, there is a situation where excessive frostings etc. at outdoor heat exchanger 7 for the controller 32 of embodiment, there is following auxiliary to add
The hot independent mode of device: the compressor 2 of coolant loop R and outdoor draft fan 15 are stopped, and are powered to auxiliary heater 23, only by
The auxiliary heater 23 carries out heating in car room.In this case, controller 32 is also based on auxiliary heater temperature sensor
Energization (the hair of auxiliary heater temperature Tptc and preceding aim heter temperature TCO the control auxiliary heater 23 of 50 detections
Heat).
In addition, controller 32 operates indoor blower 27, air blender door 28 will be blown out from indoor blower 27
Air flow path 3 in air to auxiliary heater 23 divulge information, in adjustment air quantity state.It is heated by auxiliary heater 23
Air is blown out from blow-off outlet 29A ~ 29C into car room, so, thus into the heating of running indoor.
(7) switching of operation mode
Controller 32 calculates preceding aim according to following formula (I)s and blows out temperature TAO.It is by from blowout that the target, which blows out temperature TAO,
The temperature for the air that mouth 29A ~ 29C is blown out into car room blows out the target value of temperature TAI.
TAO=(Tset-Tin) × K+Tbal (f (Tset, SUN, Tam)) (I)
Here, Tset is the indoor set temperature of vehicle set by air conditioning operation portion 53, and Tin is interior gas temperature sensor 37
The temperature of the vehicle room air of detection, K are coefficient, and Tbal is the sunshine detected according to set temperature Tset, sunshine recorder 51
Measure SUN, the equilibrium valve that the outside air temperature Tam that outside air temperature sensor 33 detects is calculated.Also, the general target blows out temperature
TAO is that outside air temperature Tam is lower and higher, is declined as outside air temperature Tam rises.
Also, outside air temperature Tam and target blowout of the controller 32 at the start based on the detection of outside air temperature sensor 33
Temperature TAO selects certain operation mode in above-mentioned each operation mode.In addition, blowing out temperature with outside air temperature Tam, target after starting
The variation of the environment such as TAO, setting condition accordingly selects aforementioned each operation mode to switch.But select aforementioned DEF blowout mould
In the case where formula T, the fixation of the switching to heating mode and operation mode as described later is carried out.
(8) the auxiliary heating of auxiliary heater 23
In addition, controller 32 is in the case where judging into the heating scarce capacity of radiator 4 in aforementioned heating mode, to auxiliary
Heater 23 is powered to make its fever, thus executes the heating of auxiliary heater 23.If auxiliary heater 23 generates heat, by this
Auxiliary heater 23 further heats the air of the radiator 4 by air flow path 3.
The heating ability that radiator 4 can generate as a result, (blows out temperature according to from target relative to the heating ability being required
The difference for spending the obtained target radiator temperature TCO of TAO and heat sink temperature Te calculates) in insufficient situation, the insufficient amount
Heating ability supplemented by auxiliary heater 23.
(9) control of heating mode, the compressor 2 in dehumidifying heating mode and outdoor expansion valve 6
Then revolving speed NC, room while, referring to Fig. 3, Fig. 4 to the compressor 2 in aforementioned heating mode and dehumidifying heating mode
The valve opening control of outer expansion valve 6 is illustrated.Fig. 3 be determine heating mode, dehumidifying heating mode under compressor 2 target
The control block diagram of the controller 32 of revolving speed (compressor rotating speed of target) TGNCh.F/F (feedforward) operating quantity operational part of controller 32
58 based on from the obtained outside air temperature Tam of outside air temperature sensor 33, indoor blower 27 blower voltage BLV, by SW
The exit of the air blender door aperture SW of the obtained air blender door 28 of=(TAO-Te)/(TCI-Te), radiator 4
Target value, that is, target degree of subcooling TGSC of degree of subcooling SC, radiator 4 temperature target value, that is, preceding aim radiator
The target value of the pressure of temperature TCO, radiator 4, that is, target radiator pressure PCO operation compressor rotating speed of target F/F operating quantity
TGNChff。
In addition, air blender door aperture SW changes in the range of 0≤SW≤1, at 0 for not to radiator 4 and auxiliary
The air mixing full-shut position for helping heater 23 to divulge information, at 1 for by whole air in air flow path 3 to radiator 4 and
The air that auxiliary heater 23 is divulged information mixes full-gear.
Preceding aim radiator pressure PCO is based on above-mentioned target degree of subcooling TGSC and target radiator temperature TCO operation
Target value operational part 59.In turn, F/B (feedback) operating quantity operational part 60 is based on target radiator pressure PCO and radiator 4
Refrigerant pressure, that is, radiator pressure PCI operation compressor rotating speed of target F/B operating quantity TGNChfb.Also, F/F operating quantity is transported
The F/F operating quantity TGNCnff of 58 operation of calculation portion is added with the TGNChfb of 60 operation of F/B operating quantity operational part by adder 61, is borrowed
After helping limit configuration part 62 to assign the limit of upper control limit value and lower control limit value, it is determined as compressor rotating speed of target TGNCh.It is warm
Revolving speed NC of the controller 32 based on compressor rotating speed of target TGNCh control compressor 2 in gas mode and dehumidifying heating mode.
That is, controller 32 is based on radiator pressure PCI and target radiator pressure in heating mode and dehumidifying heating mode
Power PCO calculates compressor rotating speed of target TGNCh in such a way that radiator pressure PCI becomes target radiator pressure PCO to control
The revolving speed NC of compressor 2.
Then, Fig. 4 is the target aperture (outdoor expansion valve target aperture) for determining the outdoor expansion valve 6 of dehumidifying heating mode
The control block diagram of the controller 32 of TGECCVte.The F/F operating quantity operational part 65 of controller 32 is absorbed heat based on the target of heat dump 9
Device temperature TEO, target radiator temperature TCO, the quality air quantity Ga of air, outside air temperature Tam operation outdoor expansion valve target are opened
The F/F operating quantity TGECCVteff of degree.
In addition, F/B operating quantity operational part 63 is based on expanding outside target heat sink temperature TEO and heat sink temperature Te operation room
The F/B operating quantity TGECCVtefb of valve target aperture.Also, the F/F operating quantity of 65 operation of F/F operating quantity operational part
The F/B operating quantity TGECCVtefb of 63 operation of TGECCVteff with F/B operating quantity operational part is added by adder 66, by the limit
After configuration part 67 assigns the limit of upper control limit value and lower control limit value, determine into outdoor expansion valve target aperture TGECCVte.
In the heating mode that dehumidifies, controller 32 is opened based on the valve of outdoor expansion valve target aperture TGECCVte control outdoor expansion valve 6
Degree.
That is, controller 32 is based on heat sink temperature Te and target heat sink temperature TEO in the dehumidifying heating mode, to inhale
The mode that hot device temperature Te becomes target heat sink temperature TEO calculates outdoor expansion valve target aperture TGECCVte, outside control room
The valve opening of expansion valve 6.In this case, if heat sink temperature Te becomes than target heat sink temperature TEO high, outdoor expansion valve
Target aperture TGECCVte becomes smaller, and reduces the valve opening of outdoor expansion valve 6 to making by coolant piping 13F, 13B to heat dump 9
The increased direction work of the coolant quantity of inflow.Conversely, if heat sink temperature Te becomes lower than target heat sink temperature TEO, room
Outer expansion valve target aperture TGECCVte becomes larger, expand outdoor expansion valve 6 valve opening to make flow into heat dump 9 coolant quantity subtract
Few direction work.
In this way, the heat sink temperature Te in dehumidifying heating mode of controller 32 the lower than target heat sink temperature TEO, more make
Outdoor expansion valve target aperture TGECCVte becomes larger, and expands the valve opening of outdoor expansion valve 6, makes by coolant piping 13F, 13B
The coolant quantity for flowing into heat dump 9 is reduced, but in such as dehumidifying heating mode, will be set to air tune by occupant in operation
In the case where the DEF button 53A opening operation for saving operation portion 53, operation mode is switched into heating mode.
(10) operation mode control when DEF blow-out mode is selected
That is, the DEF button 53A in air conditioning operation portion 53 in operation is opened operation for example in aforementioned dehumidifying heating mode
And in the case that blow-out mode is switched to DEF blow-out mode, operation mode pressure is switched to heating mode by controller 32, into
It is about to the control that operation mode is fixed into the heating mode (switching for forbidding operation mode).DEF button 53A is opened as a result,
Operation and in during DEF blow-out mode, without the switching from heating mode to other operation modes such as dehumidifying heating modes.
In addition, controller 32 is in the heating mode when selecting the DEF blow-out mode, by what is calculated according to aforementioned formula (I)
Target blows out adjustment in direction of the temperature TAO to raising set value (such as counting deg), also, makes indoor blower as previously mentioned
27 air quantity increases.In addition, controller 32 blows out damper 31C by DEF and makes DEF blow-off outlet in the DEF blow-out mode
29C substantially standard-sized sheet, other blow-off outlets 29A, 29B are closed by each blowout damper 31A, 31B.
In this way, the flowing of the refrigerant of coolant loop R is in heating mode, due to the raising of target blowout temperature TAO, radiator
Temperature TCI is also got higher, so the high air of temperature is by stronger from DEF blow-off outlet 29C by by the indoor blower 27 of speedup
Ground blows to the inside of the inside of front window 70, side window.
The temperature of the vehicle room air on the inside of front window 70, side window itself and these front windows 70 etc. rapidly becomes dew point as a result,
More than temperature, so the mist on the inside of front window 70 etc. is eliminated rapidly.In addition, the occasion is unlike dehumidifying heating mode by suction
Hot device 9 dehumidifies, so the running efficiency of compressor 2 also improves.
As described above, the air that will be supplied into car room is selected at least to blow out to the inside of the front window of vehicle 70 in the present invention
DEF blow-out mode in the case where, controller 32 makes the refrigerant heat release being discharged from compressor 2 by radiator 4, will be exothermic
After refrigerant decompression, the heating mode for making it absorb heat only by outdoor heat exchanger 7 is executed, so the insides such as front window 70 can be made
The temperature of vehicle room air be quickly and efficiently in dew-point temperature or more to eliminate the mists such as front window 70.
In this case, the dehumidifying based on heat dump 9 is carried out unlike dehumidifying heating mode, so also avoiding operating
The unfavorable condition that efficiency deteriorates expeditiously eliminates the mists such as front window 70, can also reduce consumption electric power when DEF blow-out mode.
In addition, controller 32 improves mesh compared with when selecting other blow-out modes in the case where selection DEF blow-out mode
Mark blowout temperature TAO makes under DEF blow-out mode so being heated by the radiator 4 under heating mode by side-blown into front window 70 etc.
The temperature of air out is got higher, and can eliminate rapidly the mists such as front window 70.
In turn, controller 32 selects the feelings of DEF blow-out mode in the state of the operation mode operating other than heating mode
Under condition, heating mode is switched to, so can expeditiously eliminate the equal mists of front window 70 compared with aforementioned dehumidifying heating mode.
In this case, operation mode is fixed on heating mode in DEF blow-out mode by controller 32, so blowing in DEF
Out in the state of mode, it also can be avoided bad feelings as the operation mode that operation mode is switched to other than heating mode
Condition.
Embodiment 2
Here, the structure of the coolant loop R illustrated in above-described embodiment is without being limited thereto, can not depart from spirit of the invention
Change in range.For example, Fig. 5 indicates the coolant loop R of the other embodiments of vehicle air attemperation apparatus 1.In addition, in the figure
It is same or like with having the function of of indicating of appended drawing reference identical with Fig. 1.In the case where the embodiment, there is no refrigerants to match
Pipe 13F and solenoid valve 22, coolant piping 13E are connected with coolant piping 13J, and outdoor expansion valve 6 is connected to the coolant piping
13J.In addition, check-valves 18 is not present in the outlet in supercooling portion 16, coolant piping 13B is connected to the state.
In addition, the coolant piping 13G between the discharge side of compressor 2 and the entrance side of radiator 4 is folded with aftermentioned
Dehumidifying heating and MAX cold air when the solenoid valve 30 (constitute flow passage selector device) closed.In this case, coolant piping 13G exists
The upstream of solenoid valve 30 laterally bypasses 35 fork of piping, bypass piping 35 via dehumidify heating and when MAX cold air it is open
Solenoid valve 40 (this also constitutes flow passage selector device) is connected to connection with the coolant piping 13J in the downstream side of outdoor expansion valve 6.By
These bypass piping 35, solenoid valve 30 and solenoid valves 40 constitute shunting device 45.
Shunting device 45 is constituted by such bypass piping 35, solenoid valve 30 and solenoid valve 40, as a result, as described later,
Can swimmingly switch to make from compressor 2 be discharged refrigerant flowed directly into outdoor heat exchanger 7 dehumidifying heating mode,
MAX cold air mode, the heating mode for flowing into the refrigerant being discharged from compressor 2 to radiator 4, dehumidifying cold air mode, cold air mould
Formula.In addition, auxiliary heater 23 is set to the flowing of the air relative to air flow path 3 in radiator 4 in the embodiment
In the air flow path 3 of weather side (air upstream side).In turn, it is not provided with aforementioned evaporation pressure-regulating valve in this embodiment
11。
In above structure, the movement of the vehicle air attemperation apparatus 1 of the embodiment is illustrated.Controller 32
In this embodiment, it is (maximum to switch heating mode, dehumidifying heating mode, dehumidifying cold air mode, cold air mode, MAX cold air mode
Cold air mode) and each operation mode of the independent mode of auxiliary heater to execute, (internal circulation pattern is not deposited in this embodiment
).In addition, flowing and the auxiliary heater of movement and refrigerant when selection heating mode, dehumidifying cold air mode and cold air mode
The case where independent mode is with embodiment above-mentioned (embodiment 1) is identical and omits the description.But in the embodiment (embodiment 2),
Solenoid valve 30 is opened in these heating modes, dehumidifying cold air mode and cold air mode and closes solenoid valve 40.In addition, aforementioned each
Blow-out mode is also identical, so omitting the description.
(11) the dehumidifying heating mode of the vehicle air attemperation apparatus 1 of Fig. 5
On the other hand, in the case where selection dehumidifying heating mode, controller 32 is by solenoid valve 17 in the embodiment (embodiment 2)
It is open, solenoid valve 21 is closed.In addition, solenoid valve 30 is closed, solenoid valve 40 is open, and the valve opening of outdoor expansion valve 6
It is fully closed.Also, operate compressor 2.Controller 32 operates each pressure fan 15,27, and air blender door 28 is in, substantially will be from
Indoor blower 27 blows out and passes through whole air in the air flow path 3 of heat dump 9 to heating with heat exchange paths 3A's
The state that auxiliary heater 23 and radiator 4 are divulged information, but also carry out the adjustment of air quantity.
The gas coolant for the high temperature and pressure being discharged as a result, from compressor 2 to coolant piping 13G not towards radiator 4 and
It is flowed into bypass piping 35, the coolant piping 13J in the downstream side of outdoor expansion valve 6 is reached by solenoid valve 40.At this point, outdoor swollen
Swollen valve 6 is fully closed, so refrigerant is flowed into outdoor heat exchanger 7.The refrigerant of inflow outdoor heat exchanger 7 passes through traveling herein or borrows
It helps by outer gas that outdoor draft fan 15 is divulged information and air-cooled, condensation.The refrigerant come out from outdoor heat exchanger 7 is from coolant piping
13A successively flows into liquid-storage drying portion 14, supercooling portion 16 by solenoid valve 17.Here, refrigerant is over cooled.
The refrigerant come out from the supercooling portion 16 of outdoor heat exchanger 7 enters coolant piping 13B, by inner heat exchanger
19 reach indoor expansion valve 8.After refrigerant is depressurized by indoor expansion valve 8, flows into and evaporate to heat dump 9.By at this time
Heat-absorbing action is cooled by the air blown out from indoor blower 27, and the hydrogenesis in the air and be attached to heat dump
9, so the air in air flow path 3 is cooled and is dehumidified.Following circulation: warp is repeated by the refrigerant that heat dump 9 evaporates
Inner heat exchanger 19 is crossed, accumulator 12 is reached via coolant piping 13C, is sucked by this to compressor 2.
At this point, the valve opening of outdoor expansion valve 6 is fully closed, so being able to suppress or preventing the refrigerant being discharged from compressor 2
The unfavorable condition flow backwards from outdoor expansion valve 6 to radiator 4.Thereby, it is possible to suppress or eliminate the decline of refrigerant circulation to come really
Protect air handling capacity.In turn, controller 32 is powered to make its fever to auxiliary heater 23 in the dehumidifying heating mode.By
This, is further heated temperature by the air that heat dump 9 cools down and is dehumidified during through auxiliary heater 23 and rises,
So into the dehumidifying heating of running indoor.
The temperature (heat sink temperature Te) for the heat dump 9 that controller 32 is detected based on heat sink temperature sensor 48, heat absorption
The target value of device temperature Te, that is, target heat sink temperature TEO control compressor 2 revolving speed NC, and it is based on auxiliary heater temperature
Energization (the base for auxiliary heater temperature Tptc and target radiator temperature TCO the control auxiliary heater 23 that sensor 50 detects
In the heating of fever), the cooling and dehumidifying of the air at heat dump 9 are thus suitably carried out, while being prevented securely from due to auxiliary
Help the heating of heater 23 and from the decline of each blow-off outlet 29A ~ 29C air themperature blown out into car room.As a result, will by
While the air dewetting blown out in car room, its temperature can be controlled into heater temperature appropriate, it is indoor to can be realized vehicle
Comfortably and efficiently dehumidify heating.
In addition, auxiliary heater 23 is configured at the air upstream side of radiator 4, so the sky heated by auxiliary heater 23
Gas is by radiator 4, but refrigerant does not flow to radiator 4 under the dehumidifying heating mode, adds so also eliminating radiator 4 from by auxiliary
The unfavorable condition for the air heat absorption that hot device 23 heats.That is, inhibiting the temperature of the air blown out due to radiator 4 into car room
Decline, COP are also improved.
(12) the MAX cold air mode (maximum cold air mode) of the vehicle air attemperation apparatus 1 of Fig. 5
In addition, controller 32 is open by solenoid valve 17 and closes solenoid valve 21 in MAX cold air mode.In addition, by solenoid valve
30 close, and solenoid valve 40 is open, and the valve opening of outdoor expansion valve 6 is fully closed.Also, compressor 2 is operated, not to auxiliary
Heater 23 is helped to be powered.Controller 32 operates each pressure fan 15,27, and air blender door 28 is in, and adjustment is by from indoor air-supply
Machine 27 blows out and passes through the air in the air flow path 3 of heat dump 9 by the auxiliary heater to heating with heat exchange paths 3A
23 and radiator 4 divulge information ratio state.
The gas coolant for the high temperature and pressure being discharged as a result, from compressor 2 to coolant piping 13G not towards radiator 4 and
It is flowed into bypass piping 35, the coolant piping 13J in the downstream side of outdoor expansion valve 6 is reached by solenoid valve 40.At this point, outdoor swollen
Swollen valve 6 is fully closed, so refrigerant is flowed into outdoor heat exchanger 7.The refrigerant of inflow outdoor heat exchanger 7 passes through traveling herein or borrows
The outer gas divulged information by outdoor draft fan 15 is helped to be condensed by air-cooled.The refrigerant come out from outdoor heat exchanger 7 is from coolant piping 13A
Liquid-storage drying portion 14, supercooling portion 16 are successively flowed by solenoid valve 17.Here, refrigerant is over cooled.
The refrigerant come out from the supercooling portion 16 of outdoor heat exchanger 7 enters coolant piping 13B, by inner heat exchanger
19 reach indoor expansion valve 8.Refrigerant is flowed into heat dump 9 and is evaporated after being depressurized by indoor expansion valve 8.Since heat absorption at this time is made
With being cooled by the air blown out from indoor blower 27.In addition, hydrogenesis in air and be attached to heat dump 9, so
Air in air flow path 3 is dehumidified.Following circulation is repeated by the refrigerant that heat dump 9 evaporates: by inner heat exchanger 19
Accumulator 12 is reached via coolant piping 13C, is sucked by this to compressor 2.At this point, outdoor expansion valve 6 is fully closed, so
It can similarly inhibit or prevent the bad feelings flow backwards from the refrigerant that compressor 2 is discharged from outdoor expansion valve 6 to radiator 4
Condition.Thereby, it is possible to suppress or eliminate the decline of refrigerant circulation to ensure air handling capacity.
Here, the refrigerant of aforementioned cold air mode high temperature flows to radiator 4, so from radiator 4 to HVAC unit 10
Direct heat transfer more generates, but refrigerant does not flow to radiator 4 in the MAX cold air mode, so will not be due to from putting
Air heating of the hot device 4 to the heat that HVAC unit 10 is transmitted and in the air flow path 3 of self heat absorption device in future 9.Therefore, vehicle is carried out
It is real can to carry out rapidly cold air particularly under the higher environment of outside air temperature Tam in car room for the cold air of indoor strength
Now air conditioning in comfortable car room.In addition, controller 32 is also based on heat sink temperature sensor in the MAX cold air mode
The temperature (heat sink temperature Te) of the heat dump 9 of 48 detections and its target value, that is, preceding aim heat sink temperature TEO control compression
The revolving speed NC of machine 2.
(13) operation mode control when DEF blow-out mode is selected in the embodiment of Fig. 5
Also, also for example air conditioning is grasped in operation in dehumidifying heating mode in the same manner as aforementioned (10) in the embodiment
The DEF button 53A opening operation for making portion 53, in the case where blow-out mode is switched to DEF blow-out mode, controller 32 will be transported
Rotary-die type pressure switches to heating mode, carries out for operation mode being fixed as the heating mode (switching for forbidding operation mode)
Control.
In addition, similarly, controller 32, will be according to formula above-mentioned in the heating mode when the DEF blow-out mode selects
(I) target calculated blows out temperature TAO to set value (such as counting deg), the adjustment in direction of raising, and makes room as previously mentioned
The air quantity of interior pressure fan 27 increases.In this way, the flowing of the refrigerant of coolant loop R is also in heating mode in the embodiment, pass through mesh
The raising of mark blowout temperature TAO, radiator temperature TCI is also got higher, so temperature is higher by by the indoor blower 27 of speedup
Air by the inside from the stronger inside for blowing to front window 70 DEF blow-off outlet 29C, side window.
The temperature of the vehicle room air on the inside of front window 70 etc. is in dew-point temperature or more rapidly as a result, so in front window 70 etc.
The mist of side is eliminated rapidly.In addition, the situation carries out that auxiliary heater 23 is made to generate heat, by suction unlike dehumidifying heating mode
Hot device 9 dehumidifies, so the unfavorable condition for also avoiding the running efficiency of vehicle air attemperation apparatus 1 from deteriorating, before effectively eliminating
The mists such as window 70, consumption electric power when DEF blow-out mode can also be greatly decreased.
In addition, in previous embodiment 1, by heating mode, dehumidifying heating mode, internal circulation pattern, dehumidifying cold air
Mode, cold air mode, the independent mode of auxiliary heater each operation mode switching for be illustrated, in example 2, will
Heating mode, dehumidifying heating mode, dehumidifying cold air mode, cold air mode, MAX cold air mode, auxiliary heater independent mode
It is illustrated for each operation mode switching, but not limited to this, the present invention is at least used for being able to carry out the vehicle of heating mode
Air attemperation apparatus is effective come the vehicle air attemperation apparatus implemented by heating mode and dehumidifying heating pattern switching.
In addition, in embodiment, in dehumidifying heating mode in operation by the example of DEF button 53A opening operation
It is illustrated, but opens DEF button 53A in internal circulation pattern, dehumidifying cold air mode, cold air mode, MAX cold air mode
Heating mode can also be switched in the case where operation.
In turn, in embodiment, the auxiliary heater 23 being made of ptc heater is set to air flow path 3
Form is illustrated, but not limited to this, it is also possible to configure water-air heat exchanger for air flow path 3, by following
Loop back path heats the water being heated by the heaters by the air blown out into car room to water-air heat exchanger circulation.
Description of symbols
1 vehicle air attemperation apparatus
2 compressors
3 air flow paths
4 radiators
6 outdoor expansion valves
7 outdoor heat exchangers
8 indoor expansion valves
9 heat dumps
22 solenoid valves (open and close valve)
23 auxiliary heaters (assisted heating device)
29A ~ 29C blow-off outlet
31A ~ 31C blows out damper
32 controllers (control device)
70 front windows
R coolant loop.
Claims (6)
1. a kind of vehicle air attemperation apparatus, aforementioned vehicle air attemperation apparatus have compressor, air flow path, heat release
Device, heat dump, outdoor heat exchanger, control device,
Aforementioned compressor compression refrigerant,
Aforementioned air logical circulation road feeds to the air circulation supplied in car room,
Aforementioned radiator is used to that refrigerant heat release to be made to heat the air supplied from aforementioned air flow path into aforementioned car room,
Aforementioned heat dump is used to keep refrigerant heat absorption that the air supplied from aforementioned air flow path into aforementioned car room is cooling,
Aforementioned outdoor heat exchanger is set to outside car room, and aforementioned vehicle air attemperation apparatus is characterized in that,
There is foregoing control device the air that will be supplied into aforementioned car room at least to blow out to the DEF of blowout on the inside of the front window of vehicle
Mode,
In the case where selecting the DEF blow-out mode, execute heating mode, aforementioned heating mode is, by aforementioned radiator make by
The refrigerant heat release being discharged from aforementioned compressor makes its suction by aforementioned outdoor heat exchanger after the refrigerant decompression after heat release
Heat.
2. vehicle air attemperation apparatus as described in claim 1, which is characterized in that
The target value of foregoing control device temperature based on the air blown out into aforementioned car room in aforementioned heating mode is i.e.
Target blows out temperature TAO or value controls the operating of aforementioned compressor derived from target blowout temperature TAO, and has and include
Multiple blow-out modes of aforementioned DEF blow-out mode,
In the case where stating DEF blow-out mode before the selection, compared with when selecting other aforementioned blow-out modes, improves preceding aim and blow
Temperature TAO out.
3. vehicle air attemperation apparatus as claimed in claim 1 or 2, which is characterized in that
Have the flow passage selector device of the flow path for switching refrigerant,
Foregoing control device will include multiple operation modes switching of aforementioned heating mode by controlling aforementioned flow passage selector device
It executes,
Also, in the state of operating in the aforementioned operation mode other than aforementioned heating mode, DEF blow-out mode is stated before the selection
In the case where, switch to aforementioned heating mode.
4. vehicle air attemperation apparatus as claimed in claim 3, which is characterized in that
Aforementioned operation mode is fixed into aforementioned heating mode in aforementioned DEF blow-out mode by foregoing control device.
5. vehicle air attemperation apparatus as described in claim 3 or 4, which is characterized in that
Foregoing control device has dehumidifying heating mode as aforementioned operation mode, and aforementioned dehumidifying heating mode is, by aforementioned
Radiator makes the refrigerant heat release being discharged from aforementioned compressor, after the refrigerant decompression after heat release, by aforementioned heat dump and
Aforementioned outdoor heat exchanger makes its heat absorption,
In the case where stating DEF blow-out mode before the selection in the state of operating in the dehumidifying heating mode, switch to aforementioned warm
Gas mode.
6. vehicle air attemperation apparatus as described in claim 3 or 4, which is characterized in that
Have the assisted heating device of the air heating for will supply from aforementioned air flow path into aforementioned car room,
Foregoing control device has dehumidifying heating mode as aforementioned operation mode, and aforementioned dehumidifying heating mode is to make from aforementioned
The refrigerant of compressor discharge does not flow to aforementioned radiator and flows to aforementioned outdoor heat exchanger to make its heat release, by being somebody's turn to do after heat release
After refrigerant decompression, make its heat absorption by aforementioned heat dump, and aforementioned assisted heating device made to generate heat,
In the state of the dehumidifying heating mode operation, in the case where stating DEF blow-out mode before the selection, aforementioned heating is switched to
Mode.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016247751A JP6900186B2 (en) | 2016-12-21 | 2016-12-21 | Vehicle air conditioner |
| JP2016-247751 | 2016-12-21 | ||
| PCT/JP2017/045008 WO2018116962A1 (en) | 2016-12-21 | 2017-12-08 | Air conditioning device for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110049887A true CN110049887A (en) | 2019-07-23 |
| CN110049887B CN110049887B (en) | 2022-08-23 |
Family
ID=62626519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780077716.3A Active CN110049887B (en) | 2016-12-21 | 2017-12-08 | Air conditioner for vehicle |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6900186B2 (en) |
| CN (1) | CN110049887B (en) |
| DE (1) | DE112017006392T5 (en) |
| WO (1) | WO2018116962A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114126899A (en) * | 2019-09-18 | 2022-03-01 | 三电汽车空调系统株式会社 | Air conditioner for vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7164986B2 (en) * | 2018-07-31 | 2022-11-02 | サンデン株式会社 | Vehicle air conditioner |
| JP7268976B2 (en) * | 2018-08-10 | 2023-05-08 | サンデン株式会社 | Vehicle air conditioner |
| JP7316841B2 (en) * | 2019-05-28 | 2023-07-28 | サンデン株式会社 | Vehicle air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2018100031A (en) | 2018-06-28 |
| WO2018116962A1 (en) | 2018-06-28 |
| CN110049887B (en) | 2022-08-23 |
| JP6900186B2 (en) | 2021-07-07 |
| DE112017006392T5 (en) | 2019-08-29 |
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