CN109186921A - Air conditioner of electric vehicle evaporator icing tests method - Google Patents
Air conditioner of electric vehicle evaporator icing tests method Download PDFInfo
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- CN109186921A CN109186921A CN201811084282.2A CN201811084282A CN109186921A CN 109186921 A CN109186921 A CN 109186921A CN 201811084282 A CN201811084282 A CN 201811084282A CN 109186921 A CN109186921 A CN 109186921A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
Abstract
The invention discloses a kind of air conditioner of electric vehicle evaporator icing tests methods, pass through arrangement test equipment first, then vehicle is tested, in test process, rationally setting test ambient condition, vehicle air conditioning state, and speed state, finally by under varying environment operating condition, the test value of each test point carries out analysis comparison, it can analyze whether air conditioner of electric vehicle evaporator icing tests pass through, the test method has filled up the vacancy of air conditioner of electric vehicle evaporator icing tests, it is capable of the work flow of specification air conditioner of electric vehicle evaporator icing tests by the test method, it can find in time whether vehicle is easy to appear evaporator ice formation issues in the design phase, to effectively evade design early period risk, client is reduced to complain.
Description
Technical field
The present invention relates to vehicle technology fields, more particularly to a kind of air conditioner of electric vehicle evaporator icing tests method.
Background technique
With the quick raising of living standards of the people, automobile has become the indispensable traffic such as people's trip, shipping
One of tool.Meanwhile the energy shortage in face of being on the rise and environmental degradation problem, pure electric automobile is because with low energy consumption, zero
Discharge, low noise, high energy source utilization rate, structure it is simple and for ease of maintenaince the advantages that, receive significant attention, be current garage
The direction of industry development.
Air-conditioning is the important composition component of electric vehicle, and the performance and working condition of air-conditioning directly affect driver and passenger
Driving experience.And evaporator important part within air-conditioning systems, the case where evaporator is easy to appear icing in use,
Influence the working condition of air-conditioning.The icing tests method for confirming A/C evaporator in the prior art, leads to not evade well
The generation of evaporator ice condition easily causes client's complaint.
Summary of the invention
For this purpose, it is an object of the invention to propose a kind of air conditioner of electric vehicle evaporator icing tests method, to be steamed to air-conditioning
The ice condition of hair device is assessed, and design risk is evaded.
The air conditioner of electric vehicle evaporator icing tests method provided according to the present invention, comprising:
Step S1 arranges test equipment:
Before thermocouple is arranged in compressor air suction mouth, exhaust outlet of compressor, expansion valve, it is evaporator inlet-outlet, cold
Condenser inlet and outlet, blow face grating air outlet, on every row's seat, blow window grid air outlet；
Step S2, test process:
Step S2.1 drives vehicle and to wind1 tunnel laboratory and is parked in starting point, seat and interior air outlet to vehicle
It is adjusted；
Air-conditioning system is set as turning on the aircondition by step S2.2, outer circulation and panel mode, maximum refrigeration and high air blower
Speed, maximum refrigeration and high air blower speed keep wind-tunnel temperature be 30 ± 1 DEG C, wind speed be 3 to 5km/h, relative humidity be 80% ±
5, complete intensity of sunshine is 0kw/m2；
Step S2.3 closes the doors and windows after wind-tunnel reaches the condition of standard, and vehicle is arranged according to step S2.2, starts to grasp
Make vehicle in 65km/h, minimum 15 minutes inspection chat systems and test instrument, with the data of 100km/h and existing
The data of 100km/h compare；
Step S2.4, opens all vehicle windows, and air-conditioning system setting is turned off, protected in outer circulation, Quan Leng, air blower high speed, AC
It holds speed 65km/h to travel 15 minutes, dry condenser and evaporator core；
Vehicle is accelerated to 100km/h by step S2.5；
Step S2.6 records the temperature of each thermocouple assay after keeping speed 100km/h to travel 10 minutes, 10 minutes
Value, and record condenser import and export surface wind speed, blower current and voltage, air-conditioning duct high-low pressure；
Step S2.7 selects 1/2 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, weight
Multiple step S2.6 simultaneously records above-mentioned data；
Step S2.8 selects 3/4 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, weight
Multiple step S2.6 simultaneously records above-mentioned data；
Step S2.9 selects the low speed wind-speed gear of air blower from high to low, and speed 100km/h is travelled 10 minutes, repeats
Step S2.6 simultaneously records above-mentioned data；
Temperature drop in environment storehouse is caused 25 ± 1 DEG C, repeats step S2.5~S2.9 and record by vehicle stall by step S2.10
Above-mentioned data；
Step S2.11, by vehicle stall, temperature drop in environment storehouse causes 20 ± 1 DEG C, repeats on step S2.5~S2.9 and record
State data；
Step S2.12, by vehicle idling, air conditioning mode is adjusted to blow window mode, vehicle stall, and temperature drop in environment storehouse causes 15
It ± 1 DEG C, repeats step S2.5~S2.9 and records above-mentioned data；
Step S2.13, by vehicle stall, temperature drop in environment storehouse causes 10 ± 1 DEG C, repeats on step S2.5~S2.9 and record
State data；
Step S3, interpretation of result:
Judge whether the test value of each test point reaches default in the case where each environmental working condition carries out preset time
Range, if so, judging that air conditioner of electric vehicle evaporator icing tests pass through.
The air conditioner of electric vehicle evaporator icing tests method provided according to the present invention, first by arrangement test equipment, so
Vehicle is tested afterwards, in test process, rationally setting test ambient condition, vehicle air conditioning state and speed state, most
Afterwards by the way that under varying environment operating condition, the test value of each test point carries out analysis comparison, air conditioner of electric vehicle steaming can be analyzed
Whether hair device icing tests pass through, which has filled up the vacancy of air conditioner of electric vehicle evaporator icing tests, passes through the examination
Proved recipe method is capable of the work flow of specification air conditioner of electric vehicle evaporator icing tests, can find that vehicle is in time in the design phase
It is no to be easy to appear evaporator ice formation issues, to effectively evade design early period risk, reduces client and complain.
In addition, above-mentioned air conditioner of electric vehicle evaporator icing tests method according to the present invention, can also have following additional
Technical characteristic:
Further, the step S1 is specifically included:
Condenser is divided into 9 grids, each grid places a thermocouple respectively, and mesh shape is rectangle, from condensation
Device boundary 75mm, 9 thermocouples along grid edge place, every nook and cranny place one, wherein 2 thermocouples lie in a horizontal plane in it is cold
Condenser midpoint, 2 thermocouples are disposed vertically within the condenser.
Further, the step S1 further include:
9 wind speed instruments are evenly arranged in condenser surfaces externally and internally.
Further, the step S1 further include:
The current value for arranging an ammeter real time monitoring air blower arranges the electricity of a voltmeter real time monitoring air blower
Pressure value.
Further, the step S1 further include:
Arrange pressure sensor at air-conditioning duct high-low pressure filler.
Further, in the step S1:
Before expansion valve arrange thermocouple when, guarantee thermocouple herein close to expansion valve upstream refrigerant.
Further, in the step S2.1, seat and interior air outlet to vehicle are adjusted and specifically include:
Setting front chair retreats 3/4, and one recess of backrest vertical plane, seat is preferably minimized, and handrail is put down；Preceding air port
It is directed at driver and passenger's shoulder；Shoulder position among any other preceding air port alignment back seat；Secondary air port alignment first row is left afterwards
Right passenger's shoulder；The shoulder position of secondary air port alignment proximal most position；At least one secondary air port is directed at every left and right seat；Wherein, if
Only one secondary air port of every row, the then intermediate shoulder position of the row of alignment.
Further, in the step S2.1, the air themperature of the wind1 tunnel laboratory is 30 DEG C, relative humidity 80%
± 5, intensity of sunshine 0kw/m2。
Further, in the step S3, preset time 70min.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or embodiment through the invention is recognized.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment of the present invention, to skill
Art scheme is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The air conditioner of electric vehicle evaporator icing tests method that one embodiment of the invention proposes characterized by comprising
Step S1 arranges test equipment:
Before thermocouple is arranged in compressor air suction mouth, exhaust outlet of compressor, expansion valve, it is evaporator inlet-outlet, cold
Condenser inlet and outlet, blow face grating air outlet, on every row's seat, blow window grid air outlet；
Wherein, when it is implemented, also 9 wind speed instruments need to be evenly arranged in condenser surfaces externally and internally.Arrange an electric current
Table monitors the current value of air blower in real time, arranges the voltage value of a voltmeter real time monitoring air blower.Arrange pressure sensor
At air-conditioning duct high-low pressure filler.
When condenser inlet and outlet arrangement thermocouple, condenser can be divided into 9 grids, each grid places a heat respectively
Point is even, and mesh shape is rectangle, and from condenser boundary 75mm, 9 thermocouples are placed along grid edge, and every nook and cranny places one
A, wherein 2 thermocouples lie in a horizontal plane in condenser midpoint, 2 thermocouples are disposed vertically within the condenser.
Before expansion valve arrange thermocouple when, need to guarantee thermocouple herein close to expansion valve upstream refrigerant.Specifically
Can place in the bottom of the pipeline port, thermocouple should be far from external heat source.
When compressor air suction mouth arranges thermocouple, manifold and air-conditioning pipe end at 25~75mm of compressor can be arranged in
Portion, thermocouple, which is placed, to be needed far from external heat source.
It, should be as close possible to evaporator core when evaporator inlet-outlet arranges thermocouple；Thermocouple is in evaporator inlet-outlet
It is each to place one, 3~9 degree of positions (no matter which is closer), because for pipe being all identical cross section；And hot spot
Even place should be far from external heat source.
Blow face grating air outlet arrangement thermocouple when, thermocouple number and installation site view claimer determine, guarantee into
At least place a thermocouple in port center.
When arranging thermocouple on every row's seat, three points are selected to place thermocouple in every row's seat.
Blow window grid air outlet arrangement thermocouple when, thermocouple number and installation site view claimer determine, guarantee into
At least place a thermocouple in port center.
Step S2, test process:
Step S2.1 drives vehicle and to wind1 tunnel laboratory and is parked in starting point, seat and interior air outlet to vehicle
It is adjusted；
Wherein, the air themperature of the wind1 tunnel laboratory is 30 DEG C, and relative humidity is 80% ± 5, intensity of sunshine 0kw/m2。
Seat and interior air outlet to vehicle are adjusted and specifically include:
Setting front chair retreats 3/4, and one recess of backrest vertical plane, seat is preferably minimized, and handrail is put down；Preceding air port
It is directed at driver and passenger's shoulder；Shoulder position among any other preceding air port alignment back seat；Secondary air port alignment first row is left afterwards
Right passenger's shoulder；The shoulder position of secondary air port alignment proximal most position；At least one secondary air port is directed at every left and right seat；Wherein, if
Only one secondary air port of every row, the then intermediate shoulder position of the row of alignment.
Air-conditioning system is set as turning on the aircondition by step S2.2, outer circulation and panel mode, maximum refrigeration and high air blower
Speed, maximum refrigeration and high air blower speed keep wind-tunnel temperature be 30 ± 1 DEG C, wind speed be 3 to 5km/h, relative humidity be 80% ±
5, complete intensity of sunshine is 0kw/m2；
Step S2.3 closes the doors and windows after wind-tunnel reaches the condition of standard, and vehicle is arranged according to step S2.2, starts to grasp
Make vehicle in 65km/h, minimum 15 minutes inspection chat systems and test instrument, with the data of 100km/h and existing
The data of 100km/h compare；
Step S2.4, opens all vehicle windows, and air-conditioning system setting is turned off, protected in outer circulation, Quan Leng, air blower high speed, AC
It holds speed 65km/h to travel 15 minutes, dry condenser and evaporator core；
Vehicle is accelerated to 100km/h by step S2.5；
Step S2.6 records the temperature of each thermocouple assay after keeping speed 100km/h to travel 10 minutes, 10 minutes
Value, and record condenser import and export surface wind speed, blower current and voltage, air-conditioning duct high-low pressure；
Step S2.7 selects 1/2 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, weight
Multiple step S2.6 simultaneously records above-mentioned data；
Step S2.8 selects 3/4 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, weight
Multiple step S2.6 simultaneously records above-mentioned data；
Step S2.9 selects the low speed wind-speed gear of air blower from high to low, and speed 100km/h is travelled 10 minutes, repeats
Step S2.6 simultaneously records above-mentioned data；
Temperature drop in environment storehouse is caused 25 ± 1 DEG C, repeats step S2.5~S2.9 and record by vehicle stall by step S2.10
Above-mentioned data；
Step S2.11, by vehicle stall, temperature drop in environment storehouse causes 20 ± 1 DEG C, repeats on step S2.5~S2.9 and record
State data；
Step S2.12, by vehicle idling, air conditioning mode is adjusted to blow window mode, vehicle stall, and temperature drop in environment storehouse causes 15
It ± 1 DEG C, repeats step S2.5~S2.9 and records above-mentioned data；
Step S2.13, by vehicle stall, temperature drop in environment storehouse causes 10 ± 1 DEG C, repeats on step S2.5~S2.9 and record
State data；
Step S3, interpretation of result:
Judge whether the test value of each test point reaches default in the case where each environmental working condition carries out preset time
Range, if so, judging that air conditioner of electric vehicle evaporator icing tests pass through.
Wherein, preset time is preferably 70min.
When it is implemented, can be analyzed by formulating following table:
It is pointed out that the central value of each project in upper table, needs to be set according to specific vehicle.Electronic
When vehicle is tested, only each test item can meet table, just show that air conditioner of electric vehicle evaporator icing tests pass through.
According to air conditioner of electric vehicle evaporator icing tests method provided in this embodiment, first by arranging test equipment,
Then vehicle is tested, in test process, rationally setting test ambient condition, vehicle air conditioning state and speed state,
Finally by under varying environment operating condition, the test value of each test point carries out analysis comparison, can analyze air conditioner of electric vehicle
Whether evaporator icing tests pass through, which has filled up the vacancy of air conditioner of electric vehicle evaporator icing tests, by this
Test method is capable of the work flow of specification air conditioner of electric vehicle evaporator icing tests, can find vehicle in time in the design phase
Evaporator ice formation issues whether are easy to appear, to effectively evade design early period risk, client is reduced and complains.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (9)
1. a kind of air conditioner of electric vehicle evaporator icing tests method characterized by comprising
Step S1 arranges test equipment:
Before thermocouple is arranged in compressor air suction mouth, exhaust outlet of compressor, expansion valve, evaporator inlet-outlet, condenser
Import and export, blow face grating air outlet, on every row's seat, blow window grid air outlet；
Step S2, test process:
Step S2.1 drives vehicle and to wind1 tunnel laboratory and is parked in starting point, and the seat and interior air outlet to vehicle carry out
It adjusts；
Air-conditioning system is set as turning on the aircondition by step S2.2, outer circulation and panel mode, maximum refrigeration and high air blower speed, most
It is 30 ± 1 DEG C that big refrigeration and high air blower speed, which keep wind-tunnel temperature, and wind speed is 3 to 5km/h, and relative humidity is 80% ± 5, completely
Intensity of sunshine is 0kw/m2；
Step S2.3 closes the doors and windows after wind-tunnel reaches the condition of standard, and vehicle is arranged according to step S2.2, starts to operate whole
Vehicle is in 65km/h, at least with 15 minutes inspection chat systems and test instrument, data and existing 100km/h with 100km/h
Data compare；
Step S2.4 opens all vehicle windows, and air-conditioning system setting is turned off in outer circulation, Quan Leng, air blower high speed, AC, keeps vehicle
Fast 65km/h is travelled 15 minutes, dry condenser and evaporator core；
Vehicle is accelerated to 100km/h by step S2.5；
Step S2.6 records the temperature value of each thermocouple assay after keeping speed 100km/h to travel 10 minutes, 10 minutes,
And record condenser imports and exports surface wind speed, blower current and voltage, air-conditioning duct high-low pressure；
Step S2.7 selects 1/2 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, repeats to walk
Rapid S2.6 simultaneously records above-mentioned data；
Step S2.8 selects 3/4 wind-speed gear of air blower from high to low, speed 100km/h is kept to travel 10 minutes, repeats to walk
Rapid S2.6 simultaneously records above-mentioned data；
Step S2.9 selects the low speed wind-speed gear of air blower from high to low, and speed 100km/h is travelled 10 minutes, repeats step
S2.6 simultaneously records above-mentioned data；
Temperature drop in environment storehouse is caused 25 ± 1 DEG C, repeats step S2.5~S2.9 and record above-mentioned by vehicle stall by step S2.10
Data；
Step S2.11, by vehicle stall, temperature drop in environment storehouse causes 20 ± 1 DEG C, repeats step S2.5~S2.9 and records above-mentioned number
According to；
Step S2.12, by vehicle idling, air conditioning mode is adjusted to blow window mode, vehicle stall, and temperature drop in environment storehouse causes 15 ± 1
DEG C, it repeats step S2.5~S2.9 and records above-mentioned data；
Step S2.13, by vehicle stall, temperature drop in environment storehouse causes 10 ± 1 DEG C, repeats step S2.5~S2.9 and records above-mentioned number
According to；
Step S3, interpretation of result:
Judge whether the test value of each test point reaches default model in the case where each environmental working condition carries out preset time
It encloses, if so, judging that air conditioner of electric vehicle evaporator icing tests pass through.
2. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S1 tool
Body includes:
Condenser is divided into 9 grids, each grid places a thermocouple respectively, and mesh shape is rectangle, from condenser side
Boundary 75mm, 9 thermocouples are placed along grid edge, and every nook and cranny places one, wherein 2 thermocouples lie in a horizontal plane in condenser
Midpoint, 2 thermocouples are disposed vertically within the condenser.
3. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S1 is also
Include:
9 wind speed instruments are evenly arranged in condenser surfaces externally and internally.
4. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S1 is also
Include:
The current value for arranging an ammeter real time monitoring air blower arranges the voltage of a voltmeter real time monitoring air blower
Value.
5. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S1 is also
Include:
Arrange pressure sensor at air-conditioning duct high-low pressure filler.
6. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S1
In:
Before expansion valve arrange thermocouple when, guarantee thermocouple herein close to expansion valve upstream refrigerant.
7. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S2.1
In, seat and interior air outlet to vehicle are adjusted and specifically include:
Setting front chair retreats 3/4, and one recess of backrest vertical plane, seat is preferably minimized, and handrail is put down；Preceding air port alignment
Driver and passenger's shoulder；Shoulder position among any other preceding air port alignment back seat；Secondary air port alignment first row or so multiplies afterwards
Objective shoulder；The shoulder position of secondary air port alignment proximal most position；At least one secondary air port is directed at every left and right seat；Wherein, if every row
Only one secondary air port, the then intermediate shoulder position of the row of alignment.
8. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S2.1
In, the air themperature of the wind1 tunnel laboratory is 30 DEG C, and relative humidity is 80% ± 5, intensity of sunshine 0kw/m2。
9. air conditioner of electric vehicle evaporator icing tests method according to claim 1, which is characterized in that the step S3
In, preset time 70min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811084282.2A CN109186921A (en) | 2018-09-17 | 2018-09-17 | Air conditioner of electric vehicle evaporator icing tests method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811084282.2A CN109186921A (en) | 2018-09-17 | 2018-09-17 | Air conditioner of electric vehicle evaporator icing tests method |
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| CN201811084282.2A Pending CN109186921A (en) | 2018-09-17 | 2018-09-17 | Air conditioner of electric vehicle evaporator icing tests method |
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| CN110146314A (en) * | 2019-04-09 | 2019-08-20 | 武汉格罗夫氢能汽车有限公司 | A kind of test method of automotive air-conditioning system stability |
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Application publication date: 20190111 |