CN109209613A - A kind of vehicle cooling system flow rate test structures and methods - Google Patents
A kind of vehicle cooling system flow rate test structures and methods Download PDFInfo
- Publication number
- CN109209613A CN109209613A CN201811408558.8A CN201811408558A CN109209613A CN 109209613 A CN109209613 A CN 109209613A CN 201811408558 A CN201811408558 A CN 201811408558A CN 109209613 A CN109209613 A CN 109209613A
- Authority
- CN
- China
- Prior art keywords
- automobile
- engine
- cooling system
- flow rate
- coolant line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
Abstract
A kind of vehicle cooling system flow rate test structure, comprising: the engine being arranged within automobile and the flowmeter being arranged in except the automobile, the lengthening coolant line being arranged in except the automobile, described one end for lengthening coolant line is connected with the engine, its other end is connected with the radiator being arranged within the automobile, a kind of corresponding method is provided simultaneously, the engine is measured respectively in cold state and under heat engine state, each revolving speed point coolant rate, its lengthening coolant line form for passing through disposed outside, it is big to solve flowmeter internal resistance, flowmeter installation space on vehicle it is limited and can not complete measurement engine every speed section coolant rate the problem of.
Description
Technical field
The present invention is about a kind of vehicle cooling system flow rate test structures and methods.
Background technique
With the progress of human society, automobile becomes common consumer product from luxury goods.The cooling of automobile cooling system
Can and air conditioning performance be used as vehicle environmental adaptive criteria, not only decision engine can work normally for a long time, winter whether
It can satisfy client's heating demand etc., also influence client to the subjective feeling of vehicle, be the intuitive performance of automobile product power.
In the matched design of cooling system cooling performance and air-conditioning system heating performance, coolant rate be one very
Crucial parameter, is influenced by cooling system internal resistance, engine water pump performance and engine speed etc..Such as cannot accurately it input
The parameter, meeting causes frequently to rectify and improve and verify due to the error that parameter inputs, and then brings the increase of design cost and open
The extension for sending out the period, is unfavorable for the quick exploitation of product.Therefore, coolant rate parameter is accurately obtained, matched design is improved
Precision is very important link in automobile matched design.
In the prior art, although engine coolant flow measurement may be implemented, due to vane-wheel type flowmeter internal resistance compared with
Greatly, flow rate test accuracy is poor；Engine speed range is wider, and corresponding range of flow is also wide.In this scenario, vane type stream
For meter in higher flow measurement range, internal resistance is smaller to can satisfy requirement.But due to the big characteristic of its low speed flow resistance, cause
Measurement accuracy when engine speed is lower is poor, causes certain flow meters that can only measure within the scope of its flow rate test a certain section
Interior flow.It is embodied in the test of engine coolant rate and shows themselves in that the coolant liquid that can only measure a certain revolving speed section
Flow, and can not completely measure the coolant rate in engine every speed section；Since vane-wheel type flowmeter internal resistance is larger,
It cannot be using the structure for lengthening coolant line.Therefore, when measuring engine cool flow quantity on the basis of vehicle, most of feelings
Under condition, flowmeter installation is carried out without sufficient space.
Summary of the invention
The purpose of the present invention is: overcome prior art defect, solves that flowmeter internal resistance is big, flowmeter is installed on vehicle
Limited space and can not complete measurement engine every speed section coolant rate the problem of.
To realize the above-mentioned technical purpose, the present invention provides a kind of vehicle cooling system flow rate test structure comprising: arrangement
Engine within automobile and the flowmeter being arranged in except the automobile, in which: further include being arranged in except the automobile
Lengthening coolant line, it is described lengthen coolant line one end be connected with the engine, the other end be arranged in institute
The radiator within automobile is stated to be connected.
The present invention passes through the lengthening coolant line form of disposed outside, and inline flow meter is simultaneously measured accordingly, solves
Flowmeter internal resistance of having determined is big, flowmeter installation space on vehicle is limited and can not complete measurement engine every speed section it is cold
But the problem of flow quantity.
As a further improvement, except the automobile, arranged in series has vent valve in the lengthening coolant line.
As a further improvement, except the automobile, arranged in series has transparent pipe in the lengthening coolant line.
As a further improvement, the bending part crooked process radius of the coolant line is greater than 6 times of the coolant liquid
The diameter of pipeline, and caliber structure is even variation to maintain the pressure even variation in it in the coolant line.
As a further improvement, the import of the flowmeter has the straight pipe more than or equal to 10 times of its interior electrical path lengths,
The outlet of the flowmeter has the straight pipe more than or equal to 2 times of its interior electrical path lengths, and the diameter of the coolant line is greater than
Equal to the diameter of the flowmeter.
As a further improvement, it is disposed with temperature sensor at the import and export pipeline of the engine, to detect water
It is mild to determine thermostat working condition.
As a further improvement, the position of the expansion tank in the automobile is higher than the highest of the coolant line
Point；It when filling coolant liquid, is carried out under heat engine state, and the coolant liquid should be added to the maximum scale of the expansion tank
Line.
As a further improvement, the flow is calculated as electromagnetic type flow meter and is horizontally arranged.
As a further improvement, the revolving speed of the engine is controlled by the ECU in the automobile, the fluctuation of speed exists
Within the scope of ± 20rpm, and the engine is measured respectively in cold state and under heat engine state, each revolving speed point cools down liquid stream
Amount.
It is used as corresponding technical solution simultaneously, the present invention also provides a kind of vehicle cooling system flow rate test method, packets
The flowmeter for including offer: being arranged in the engine within automobile and be arranged in except the automobile further includes providing:
The lengthening coolant line being arranged in except the automobile, described one end for lengthening coolant line are started with described
Machine is connected, and the other end is connected with the radiator being arranged within the automobile；
The revolving speed of the engine is controlled by the ECU in the automobile, the fluctuation of speed within the scope of ± 20rpm, and
The engine is measured respectively in cold state and under heat engine state, each revolving speed point coolant rate.
The flow rate test technical solution is the pattern by electromagnetic type flow meter by lengthening coolant line, is connected on cold
But it in liquid pipeline, is measured under engine cold state and heat engine state (thermostat does not open/standard-sized sheet) respectively, each revolving speed point coolant liquid
Flow facilitates detection.
Detailed description of the invention
Fig. 1 is connection schematic diagram of the present invention.
Appended drawing reference: 1 automobile, 2 engines, 3 flowmeters, 4 lengthen coolant line, 5 vent valves, 6 transparent pipes, 7 heat dissipations
Device.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of vehicle cooling system flow rate test structure comprising: be arranged in automobile 1 it
Interior engine 2 and the flowmeter 3 being arranged in except the automobile 1, in which: further include being arranged in adding except the automobile 1
Long coolant line 4, it is described lengthen coolant line 4 one end be connected with the engine 2, the other end be arranged in described in
Radiator 7 within automobile 1 is connected.
The present invention passes through 4 form of lengthening coolant line of disposed outside, and inline flow meter 3 is simultaneously measured accordingly,
Solve that flowmeter internal resistance is big, installation space is limited on vehicle and can not complete measurement engine every speed section for flowmeter
The problem of coolant rate.
As a further improvement, except the automobile 1, arranged in series has deflation in the lengthening coolant line 4
Valve 5.
As a further improvement, except the automobile 1, there is transparent arranged in series in the lengthening coolant line 4
Pipe 6.
As a further improvement, the bending part crooked process radius of the coolant line 4 is greater than 6 times of the coolant liquid
The diameter of pipeline 4, and caliber structure is even variation to maintain the pressure even variation in it in the coolant line 4.
As a further improvement, the import of the flowmeter 3 has the straight pipe more than or equal to 10 times of its interior electrical path lengths,
The outlet of the flowmeter 3 has the straight pipe more than or equal to 2 times of its interior electrical path lengths, and the diameter of the coolant line 4 is big
In the diameter for being equal to the flowmeter 3.
As a further improvement, it is disposed with temperature sensor at the import and export pipeline of the engine 2, to detect water
It is mild to determine thermostat working condition.
As a further improvement, the position of the expansion tank in the automobile 1 is higher than the highest of the coolant line 4
Point；It when filling coolant liquid, is carried out under heat engine state, and the coolant liquid should be added to the maximum scale of the expansion tank
Line.
As a further improvement, the flowmeter 3 is electromagnetic type flow meter and is horizontally arranged.
As a further improvement, the revolving speed of the engine 2, the fluctuation of speed are controlled by the ECU in the automobile 1
Within the scope of ± 20rpm, and the engine 2 is measured respectively in cold state and under heat engine state, each revolving speed point coolant liquid
Flow.
It is used as corresponding technical solution simultaneously, the present invention also provides a kind of vehicle cooling system flow rate test method, packets
The flowmeter 3 for including offer: being arranged in the engine 2 within automobile 1 and be arranged in except the automobile 1 further includes providing:
The lengthening coolant line 4 being arranged in except the automobile 1, it is described lengthen coolant line 4 one end with it is described
Engine 2 is connected, and the other end is connected with the radiator 7 being arranged within the automobile 1；
The revolving speed of the engine 2 is controlled by the ECU in the automobile 1, the fluctuation of speed within the scope of ± 20rpm,
And the engine 2 is measured respectively in cold state and under heat engine state, each revolving speed point coolant rate.
The flow rate test technical solution is the pattern by electromagnetic type flow meter by lengthening coolant line, is connected on cold
But it in liquid pipeline, is measured under engine cold state and heat engine state (thermostat does not open/standard-sized sheet) respectively, each revolving speed point coolant liquid
Flow facilitates detection.
In the preferred technical solution of the present invention, flowmeter is connected in coolant line, it is desirable that:
1, extension pipe bending part crooked process radius is greater than 6 times of pipeline diameters；
2, it lengthens in pipeline, the structure that no caliber suddenly change etc. causes system pressure to change；
3, flowmeter import guarantees electrical path length straight pipe in 10 times, and outlet guarantees electrical path length straight pipe in 2 times；
4, measurement pipeline diameter cannot be less than flowmeter diameter；
5, temperature sensor should be arranged in engine the import and export pipeline simultaneously, to detect water temperature, determine thermostat work shape
State；
6, expansion tank should be improved, its position is made to be higher than cooling line highest point.Meanwhile filling coolant liquid
When, it is carried out under heat engine state, to guarantee the enough filling of coolant liquid, air is avoided to impact measurement result.Coolant liquid is answered
Add to expansion tank max graduation mark.
7, flowmeter should be placed according to its requirement, avoided electromagnetic interference, engine from uttering long and high-pitched sounds etc. and impacted to it.Together
When, flowmeter should be horizontally arranged as far as possible, and avoid vibrating.
8, as far as possible by ECU control engine speed, if manual control revolving speed, also should ensure that the fluctuation of speed ±
Within the scope of 20rpm.Measurement engine cold state and (thermostat does not open/standard-sized sheet) under heat engine state, each revolving speed point are cooling respectively
Flow quantity.
Pressure sensor measurement pipe is arranged with radiator coolant import as previously mentioned, can export in engine coolant
Road water resistance is compared with sample car original state water resistance, is eliminated water resistance that may be present in pipeline restructuring and is increased to flow rate test knot
It is influenced caused by fruit；Transparent pipe can be accessed in each extension pipeline, with the whether enough filling of auxiliary judgment coolant liquid；It can be
Vent valve is accessed in each pipeline extreme higher position that extends, the air in pipeline is smoothly discharged；It can install and cut in each extension pipeline
Only valve simulates large and small cycles, solves summer temp and increases very fast, partial circulating testing time deficiency problem.
The present invention designs the method that cooling system flow is measured on the basis of vehicle, can meet and set
The purpose of parameter is accurately provided when meter input.Entire test macro is restructured by pipeline, using means such as electromagnetic type flow meters, is taken
The platform for measuring cooling system flow on the basis of vehicle has been built, and has measured each revolving speed point cooling system under cold and heat engine state
System flow, forms this engine-cooling system flow distribution database.Engine flow distribution data obtained by this test method
Library, can for vehicle under high temperature environment cooling system matching and low temperature environment under air-conditioning heating, defrosting, demister system matching set
Meter provides the accurate data input of coolant rate, can effectively improve design matching precision.
It should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, it should be understood that non-limiting embodiment party
Case is illustrated as just example.The protection scope of the desired essence of the application is more embodied in independent claims offer
Range and its dependent claims.
Claims (10)
1. a kind of vehicle cooling system flow rate test structure comprising: the engine (2) and arrangement being arranged within automobile (1)
Flowmeter (3) except the automobile (1), it is characterised in that:
It further include the lengthening coolant line (4) being arranged in except the automobile (1), the one of lengthening coolant line (4)
End is connected with the engine (2), and the other end is connected with the radiator (7) being arranged within the automobile (1).
2. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: in the automobile (1)
Except, arranged in series has vent valve (5) in the lengthening coolant line (4).
3. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: in the automobile (1)
Except, arranged in series has transparent pipe (6) in the lengthening coolant line (4).
4. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: the coolant line
(4) diameter of the coolant line (4) of the bending part crooked process radius greater than 6 times, and pipe in the coolant line (4)
Gauge structure is even variation to maintain the pressure even variation in it.
5. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: the flowmeter (3)
Import there is the straight pipe more than or equal to 10 times of its interior electrical path lengths, the outlet of the flowmeter (3) have be more than or equal to 2 times its
The straight pipe of interior electrical path length, and the diameter of the coolant line (4) is more than or equal to the diameter of the flowmeter (3).
6. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: in the engine
(2) it is disposed with temperature sensor at the import and export pipeline, to detect water temperature and determine thermostat working condition.
7. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: in the automobile (1)
Expansion tank position be higher than the coolant line (4) highest point；When filling coolant liquid, under heat engine state into
It goes, and the coolant liquid should be added to the maximum scale line of the expansion tank.
8. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: the flowmeter (3)
For electromagnetic type flow meter and it is horizontally arranged.
9. a kind of vehicle cooling system flow rate test structure as described in claim 1, it is characterised in that: pass through the automobile
(1) ECU in controls the revolving speed of the engine (2), and the fluctuation of speed measures the hair within the scope of ± 20rpm respectively
Motivation (2) is in cold state and under heat engine state, each revolving speed point coolant rate.
10. a kind of vehicle cooling system flow rate test method comprising provide: the engine (2) that is arranged within automobile (1) and
The flowmeter (3) being arranged in except the automobile (1), it is characterised in that: further include providing:
The lengthening coolant line (4) being arranged in except the automobile (1), described one end for lengthening coolant line (4) and institute
It states engine (2) to be connected, the other end is connected with the radiator (7) being arranged within the automobile (1)；
The revolving speed of the engine (2) is controlled by ECU in the automobile (1), the fluctuation of speed within the scope of ± 20rpm,
And the engine (2) is measured respectively in cold state and under heat engine state, each revolving speed point coolant rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408558.8A CN109209613B (en) | 2018-11-23 | 2018-11-23 | Flow test structure and method for whole vehicle cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408558.8A CN109209613B (en) | 2018-11-23 | 2018-11-23 | Flow test structure and method for whole vehicle cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209613A true CN109209613A (en) | 2019-01-15 |
| CN109209613B CN109209613B (en) | 2020-05-19 |
Family
ID=64994224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811408558.8A Active CN109209613B (en) | 2018-11-23 | 2018-11-23 | Flow test structure and method for whole vehicle cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209613B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601264A (en) * | 1984-05-18 | 1986-07-22 | Nissan Motor Co., Ltd. | Cooling system for automotive engine |
| CN102877925A (en) * | 2012-06-13 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cooling circulating system and controlling method thereof |
| CN105352733A (en) * | 2015-12-12 | 2016-02-24 | 哈尔滨东安汽车动力股份有限公司 | Novel hot and cold impact test method for automobile engine |
| CN205936806U (en) * | 2016-08-30 | 2017-02-08 | 广西玉柴机器股份有限公司 | State detection device in engine internal cooling water route |
| CN107478431A (en) * | 2017-09-27 | 2017-12-15 | 中国第汽车股份有限公司 | Engine current test measurement device |
| EP3330512A1 (en) * | 2016-12-01 | 2018-06-06 | Iveco Magirus Ag | Cooling system of an internal combustion engine |
-
2018
- 2018-11-23 CN CN201811408558.8A patent/CN109209613B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601264A (en) * | 1984-05-18 | 1986-07-22 | Nissan Motor Co., Ltd. | Cooling system for automotive engine |
| CN102877925A (en) * | 2012-06-13 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine cooling circulating system and controlling method thereof |
| CN105352733A (en) * | 2015-12-12 | 2016-02-24 | 哈尔滨东安汽车动力股份有限公司 | Novel hot and cold impact test method for automobile engine |
| CN205936806U (en) * | 2016-08-30 | 2017-02-08 | 广西玉柴机器股份有限公司 | State detection device in engine internal cooling water route |
| EP3330512A1 (en) * | 2016-12-01 | 2018-06-06 | Iveco Magirus Ag | Cooling system of an internal combustion engine |
| CN107478431A (en) * | 2017-09-27 | 2017-12-15 | 中国第汽车股份有限公司 | Engine current test measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109209613B (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105229349B (en) | Advanced valve actuator with real traffic feedback | |
| Serrano et al. | A study on the internal convection in small turbochargers. Proposal of heat transfer convective coefficients | |
| US9556798B2 (en) | Systems and methods for measuring a flow profile in a turbine engine flow path | |
| CN106872197A (en) | A kind of performance testing device of heat exchanger and method of testing | |
| CN104685279A (en) | Advanced valve actuation system with integral freeze protection | |
| CN103884529A (en) | Method and device for testing heat dissipation performance of radiator assembly | |
| CN101526419A (en) | Flow characteristics test method and device of a plate-fin heat exchanger fin | |
| Marelli et al. | Heat transfer effects on performance map of a turbocharger compressor for automotive application | |
| CN110671238A (en) | EGR waste gas flow measuring method and EGR system of gas engine | |
| US20140208755A1 (en) | Gas Turbine Air Mass Flow Measuring System and Methods for Measuring Air Mass Flow in a Gas Turbine Inlet Duct | |
| Serrano et al. | Methodology to characterize heat transfer phenomena in small automotive turbochargers: experiments and modelling based analysis | |
| Marelli et al. | Direct evaluation of turbine isentropic efficiency in turbochargers: Cfd assisted design of an innovative measuring technique | |
| Cuevas et al. | Thermo-hydraulic characterization of an automotive intercooler for a low pressure EGR application | |
| CN115524134A (en) | Air entraining amount testing structure and method for aircraft engine anti-icing system | |
| CN109209613A (en) | A kind of vehicle cooling system flow rate test structures and methods | |
| Lin et al. | The effect of changes in ambient and coolant radiator inlet temperatures and coolant flowrate on specific dissipation | |
| Grigoriadis et al. | Advanced turbocharger model for 1D ICE simulation-Part i | |
| CN108168638A (en) | A kind of gasoline engine oil consumption measuring method | |
| Mick et al. | Study on relevant effects concerning heat transfer of a convection cooled gas turbine blade under realistic engine temperature conditions | |
| Sortor | On-system engine cooling fan measurement as a tool for optimizing cooling system airflow performance and noise | |
| Marelli et al. | Towards the Direct Evaluation of Turbine Isentropic Efficiency in Turbocharger Testing | |
| CN113686415B (en) | Flow measurement standard device for simulating actual application scene | |
| Guillou | Uncertainty and measurement sensitivity of turbocharger compressor gas stands | |
| Zheng et al. | Development and Validation of a Fan Performance Model for Typical Packaged HVAC Systems. | |
| Celenza et al. | Metrological analysis of smart heat meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |