CN109163910A - A kind of test method and system of engine resistance torque power - Google Patents
A kind of test method and system of engine resistance torque power Download PDFInfo
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- CN109163910A CN109163910A CN201811002199.6A CN201811002199A CN109163910A CN 109163910 A CN109163910 A CN 109163910A CN 201811002199 A CN201811002199 A CN 201811002199A CN 109163910 A CN109163910 A CN 109163910A
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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
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/044—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests
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- Combustion & Propulsion (AREA)
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- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides the test method and system of a kind of engine resistance torque power, this method comprises: the temperature of setting test environment is constant, test vehicle is fixed in rotating hub, gearbox towing astern temperature rise test is carried out, acquires the rotating hub wheel side power F of gearbox towing astern temperature rise test2；Engine towing astern temperature rise test is carried out, the rotating hub wheel side power F of engine towing astern temperature rise test is acquired1, vehicle velocity V and engine motor oil temperature T；According to the gearbox towing astern temperature rise test rotating hub wheel side power F2, engine towing astern temperature rise test rotating hub wheel side power F1And vehicle velocity V, engine resistance torque power P is calculated.The present invention can improve the accuracy and integrality of engine performance measuring.
Description
Technical field
The present invention relates to automotive engine test technical field more particularly to a kind of test sides of engine resistance torque power
Method and system.
Background technique
The quality of engine performance would generally be embodied with the starting performance of engine, when engine operates, in order to guarantee
The friction pair such as bearing works under good operating condition, it is necessary to the operating temperature for controlling engine motor oil, in engine performance test
In, often require engine to be in heat engine state, the requirement to oil temperature is controlled within the scope of suitable temperature.
Currently, domestic majority automobile vendor on revolving drum test table by carrying out in order to judge the excellent of engine performance
Engine performance measuring test, is only established in the engine resistance torque power under certain oil temperature and the relationship between engine speed
Model, to obtain engine performance result.The normal relationship for having ignored engine oil temperature and the moment of resistance, and different engine oil temperatures
Engine resistance torque power can be made different, and then influence engine performance measuring result.Therefore, engine motor oil temperature how is established
The relational model of degree and engine resistance torque power, is within the scope of suitable oil temperature to control engine, can improve and start
The accuracy of machine performance test reduces the energy consumption of engine.
Summary of the invention
The present invention provides the test method and system of a kind of engine resistance torque power, solves existing vehicle motor performance
The relational model of test missing engine oil temperature and engine resistance torque power, it is incomplete to avoid engine performance measuring
Problem can improve the accuracy and integrality of engine performance measuring.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of test method of engine resistance torque power, comprising:
S1: setting test environment temperature be it is constant, test vehicle is fixed in rotating hub, carry out the temperature rise of gearbox towing astern
Test acquires the rotating hub wheel side power F of gearbox towing astern temperature rise test2；
S2: carrying out engine towing astern temperature rise test, acquires the rotating hub wheel side power F of engine towing astern temperature rise test1, vehicle velocity V
With engine motor oil temperature T；
According to the rotating hub wheel side power F of the gearbox towing astern temperature rise test2, engine towing astern temperature rise test rotating hub wheel side
Power F1And vehicle velocity V, engine resistance torque power P is calculated.
Preferably, further includes:
According to the engine resistance torque power P and the engine motor oil temperature T, fitting obtains power and temperature is bent
Line；
The mathematical model of engine resistance torque power Yu engine motor oil temperature is established according to the power and temperature curve.
Preferably, the progress gearbox towing astern temperature rise test acquires the rotating hub wheel side power of gearbox towing astern temperature rise test
F2, comprising:
Test ambient temperature is set, test vehicle is stood 4 hours or more, so that TOT Transmission Oil Temperature and the experimental enviroment
Temperature is consistent；
Test vehicle is promoted in environment storehouse, and is fixed on revolving drum test table；
Setting test vehicle, which is in, puts into gear and clutch off-state, make rotating hub drive test vehicle with setting speed at the uniform velocity
Traveling；
Obtain the rotating hub wheel side power F of gearbox towing astern temperature rise test2。
Preferably, the progress engine towing astern temperature rise test acquires the rotating hub wheel side power of engine towing astern temperature rise test
F1, vehicle velocity V and engine motor oil temperature T, comprising:
After gearbox towing astern temperature rise test, test vehicle is continued to keep putting into gear and clutch off-state；
Hub belt wheel operation mode is set, travels test vehicle with setting speed；
It loosens the clutch, operates the engine of test vehicle；
Obtain the rotating hub wheel side power F of engine towing astern temperature rise test1, vehicle velocity V and engine motor oil temperature T.
It is preferably, described that engine resistance torque power P is calculated, comprising:
According to formula: P=(F1-F2) value of engine resistance torque power is calculated in * V.
Preferably, the mathematical model for establishing engine resistance torque power Yu engine motor oil temperature, comprising:
According to the power and temperature curve, power and hygrometric formula are obtained: P=μ0+μ1T+μ2T2, wherein μ0、μ1And μ2
For model coefficient；
The mathematical model is established according to the power and hygrometric formula.
The present invention also provides a kind of test macros of engine resistance torque power, comprising:
Wheel hub test platform, the temperature for test environment to be arranged is constant, and test vehicle is fixed in rotating hub；
Acquisition device, for acquiring the rotating hub wheel side power F of gearbox towing astern temperature rise test2, engine towing astern temperature rise test
Rotating hub wheel side power F1, vehicle velocity V and engine motor oil temperature T；
Computing unit, for according to the rotating hub wheel side power F2 of the gearbox towing astern temperature rise test, engine towing astern temperature rise
The rotating hub wheel side power F1 and vehicle velocity V of test, are calculated engine resistance torque power P.
Preferably, further includes:
Fitting unit, for according to the engine resistance torque power P and the engine motor oil temperature T, fitting to be obtained
Power and temperature curve；
Modeling unit, for establishing engine resistance torque power and engine motor oil temperature according to the power and temperature curve
The mathematical model of degree.
The present invention provides the test method and system of a kind of engine resistance torque power, by turning test vehicle setting
Gearbox towing astern temperature rise test and engine towing astern temperature rise test are carried out on hub, acquire rotating hub wheel side power and speed in real time, and count
Calculation obtains engine resistance torque power, and then obtains the mathematical model of engine resistance torque power Yu engine motor oil temperature.Solution
The relational model of certainly existing vehicle motor performance test missing engine oil temperature and engine resistance torque power, avoids sending out
The incomplete problem of motivation performance test can improve the accuracy and integrality of engine performance measuring.
Detailed description of the invention
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1: being a kind of test method flow chart of engine resistance torque power provided by the invention.
Specific embodiment
The scheme of embodiment in order to enable those skilled in the art to better understand the present invention with reference to the accompanying drawing and is implemented
Mode is described in further detail the embodiment of the present invention.
For current domestic most automobile vendors by carrying out engine performance measuring test on revolving drum test table, lack
The relationship of test engine oil temperature and engine resistance torque, easily cause that engine performance measuring is not comprehensive and test result not
Accurate problem.The present invention provides the test method and system of a kind of engine resistance torque power, by the way that test vehicle to be arranged
Gearbox towing astern temperature rise test and engine towing astern temperature rise test are carried out in rotating hub, acquire rotating hub wheel side power and speed in real time,
And engine resistance torque power is calculated, and then obtain the mathematical modulo of engine resistance torque power Yu engine motor oil temperature
Type.The relational model for solving existing vehicle motor performance test missing engine oil temperature and engine resistance torque power, avoids
The incomplete problem of engine performance measuring is caused, the accuracy and integrality of engine performance measuring can be improved.
As shown in Figure 1, a kind of test method of engine resistance torque power, comprising:
S1: setting test environment temperature be it is constant, test vehicle is fixed in rotating hub, carry out the temperature rise of gearbox towing astern
Test acquires the rotating hub wheel side power F of gearbox towing astern temperature rise test2；
S2: carrying out engine towing astern temperature rise test, and rotating hub wheel side power F is tested in acquisition engine towing astern temperature rise examination1, vehicle velocity V
With engine motor oil temperature T；
S3: according to the rotating hub wheel side power F of the gearbox towing astern temperature rise test2, engine towing astern temperature rise test rotating hub
Take turns side power F1And vehicle velocity V, engine resistance torque power P is calculated.
Further, this method further include:
S4: according to the engine resistance torque power P and the engine motor oil temperature T, fitting obtains power and temperature
Curve；
S5: the mathematical modulo of engine resistance torque power Yu engine motor oil temperature is established according to the power and temperature curve
Type.
Specifically, the gearbox towing astern temperature rise test by test vehicle on rotating hub experiment porch and engine towing astern temperature
Test is risen, the engine resistance torque power of acquisition and engine motor oil temperature are subjected to linear fit and obtain engine motor oil temperature
It with the relational model of the moment of resistance, solves to have obtained mathematical model by the fitting for the secondary model coefficient for establishing it, will start
The machine moment of resistance and engine motor oil temperature are associated, make to engine performance measuring more fully and accurately.
The progress gearbox towing astern temperature rise test acquires the test rotating hub wheel side power F of gearbox towing astern temperature rise2, comprising:
S11: setting test ambient temperature, test vehicle is stood 4 hours or more, so that TOT Transmission Oil Temperature and the test
Environment temperature is consistent；
S12: test vehicle is promoted in environment storehouse, and is fixed on revolving drum test table；
S13: setting test vehicle, which is in, puts into gear and clutch off-state, and rotating hub is made to drive test vehicle with setting speed
It drives at a constant speed；
S14: the rotating hub wheel side power F of gearbox towing astern temperature rise test is obtained2。
In practical applications, step 1: first by test vehicle standing 4 hours or more (or 25 DEG C of TOT Transmission Oil Temperature), and will
Test ambient temperature is set in 25 DEG C；Step 2: test vehicle is promoted in environment storehouse, and it is fixed on revolving drum test table, it will
Rotating hub may be set to constant speed 4 wheel driven mode；Step 3: test vehicle gear is placed in 5 gears, clutch is disconnected, and blower, which is in, closes shape
State, allows the anti-traction vehicle of rotating hub with 80km/h velocity-stabilization traveling, acquires front axle rotating hub wheel side power F with rotating hub data collecting instrument2, number
According to frequency acquisition 0.1Hz, off-test after TOT Transmission Oil Temperature balances；
The progress engine towing astern temperature rise test acquires the rotating hub wheel side power F of engine towing astern temperature rise test1, vehicle velocity V
With engine motor oil temperature T, comprising:
S21: after gearbox towing astern temperature rise test, test vehicle is continued to keep putting into gear and clutch disconnects shape
State；
S22: setting hub belt wheel operation mode travels test vehicle with setting speed；
It loosens the clutch, operates the engine of test vehicle；
S23: the test rotating hub wheel side power F of engine towing astern temperature rise is obtained1, vehicle velocity V and engine motor oil temperature T.
In practical applications, step 1: after gearbox towing astern temperature rise test, test vehicle is continued to be kept for 5 grades
Rotating hub setting can be driven mode for constant speed two, drive vehicle wheel rotation, i.e. hub belt wheel operation mode by rotating hub, close and turn by traveling
Hub blower；Step 2: the anti-trailer of rotating hub, travels test vehicle with the speed of 80km/h, driver slowly loosens the clutch,
Front axle rotating hub wheel side power F is acquired using rotating hub data collecting instrument1And speed, engine motor oil temperature is acquired with K-type thermocouple, to
The off-test after engine motor oil equalized temperature.
It is described that engine resistance torque power P is calculated, comprising: according to formula: P=(F1-F2) engine is calculated in * V
The value of moment of resistance power.
The mathematical model for establishing engine resistance torque power Yu engine motor oil temperature, comprising: according to the power
With temperature curve, power and hygrometric formula are obtained: P=μ0+μ1T+μ2T2, wherein μ0、μ1And μ2For model coefficient；According to described
Power and hygrometric formula establish the mathematical model.
As it can be seen that the present invention provides a kind of test method of engine resistance torque power, by turning test vehicle setting
Gearbox towing astern temperature rise test and engine towing astern temperature rise test are carried out on hub, acquire rotating hub wheel side power and speed in real time, and count
Calculation obtains engine resistance torque power, and then obtains the mathematical model of engine resistance torque power Yu engine motor oil temperature.Solution
The relational model of certainly existing vehicle motor performance test missing engine oil temperature and engine resistance torque power, avoids sending out
The incomplete problem of motivation performance test can improve the accuracy and integrality of engine performance measuring.
The present invention also provides a kind of test macros of engine resistance torque power, comprising:
Wheel hub experiment porch, the temperature for test environment to be arranged is constant, and test vehicle is fixed in rotating hub；
Acquisition device, for acquiring the rotating hub wheel side power F of gearbox towing astern temperature rise test2, engine towing astern temperature rise test
Rotating hub wheel side power F1, vehicle velocity V and engine motor oil temperature T；
Computing unit, for being tried according to the gearbox towing astern temperature rise test rotating hub wheel side power F2, engine towing astern temperature rise
Front axle rotating hub wheel side power F1 and vehicle velocity V are tested, engine resistance torque power P is calculated.
Further, further includes:
Fitting unit, for according to the engine resistance torque power P and the engine motor oil temperature T, fitting to be obtained
Power and temperature curve；
Modeling unit, for establishing engine resistance torque power and engine motor oil temperature according to the power and temperature curve
The mathematical model of degree.
As it can be seen that the present invention provides a kind of test macro of engine resistance torque power, by turning test vehicle setting
Gearbox towing astern temperature rise test and engine towing astern temperature rise test are carried out on hub experiment porch, acquire rotating hub wheel side power and vehicle in real time
Speed, and engine resistance torque power is calculated, and then obtain the mathematics of engine resistance torque power Yu engine motor oil temperature
Model.The relational model for solving existing vehicle motor performance test missing engine oil temperature and engine resistance torque power, keeps away
Exempt to cause the incomplete problem of engine performance measuring, the accuracy and integrality of engine performance measuring can be improved.
Structure, feature and effect of the invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (8)
1. a kind of test method of engine resistance torque power characterized by comprising
Be arranged test environment temperature be it is constant, test vehicle is fixed in rotating hub, carry out gearbox towing astern temperature rise test, adopt
Collect the rotating hub wheel side power F of gearbox towing astern temperature rise test2；
Engine towing astern temperature rise test is carried out, the rotating hub wheel side power F of engine towing astern temperature rise test is acquired1, vehicle velocity V and engine
Oil temperature T；
According to the rotating hub wheel side power F of the gearbox towing astern temperature rise test2, engine towing astern temperature rise test rotating hub wheel side power F1
And vehicle velocity V, engine resistance torque power P is calculated.
2. the test method of engine resistance torque power according to claim 1, which is characterized in that further include:
According to the engine resistance torque power P and the engine motor oil temperature T, fitting obtains power and temperature curve；
The mathematical model of engine resistance torque power Yu engine motor oil temperature is established according to the power and temperature curve.
3. the test method of engine resistance torque power according to claim 1, which is characterized in that the carry out gearbox
Towing astern temperature rise test acquires the rotating hub wheel side power F of gearbox towing astern temperature rise test2, comprising:
Test ambient temperature is set, test vehicle is stood 4 hours or more, so that TOT Transmission Oil Temperature and the test ambient temperature
Unanimously；
Test vehicle is promoted in environment storehouse, and is fixed on revolving drum test table；
Setting test vehicle, which is in, puts into gear and clutch off-state, makes rotating hub that test vehicle be driven at the uniform velocity to go with setting speed
It sails；
Obtain the rotating hub wheel side power F of gearbox towing astern temperature rise test2。
4. the test method of engine resistance torque power according to claim 1, which is characterized in that the carry out engine
Towing astern temperature rise test acquires the rotating hub wheel side power F of engine towing astern temperature rise test1, vehicle velocity V and engine motor oil temperature T, packet
It includes:
After gearbox towing astern temperature rise test, test vehicle is continued to keep putting into gear and clutch off-state；
Hub belt wheel operation mode is set, travels test vehicle with setting speed；
It loosens the clutch, operates the engine of test vehicle；
Obtain the rotating hub wheel side power F of engine towing astern temperature rise test1, vehicle velocity V and engine motor oil temperature T.
5. the test method of engine resistance torque power according to claim 1, which is characterized in that described that hair is calculated
Motivation moment of resistance power P, comprising:
According to formula: P=(F1-F2) value of engine resistance torque power is calculated in * V.
6. the test method of engine resistance torque power according to claim 2, which is characterized in that described to establish engine
The mathematical model of moment of resistance power and engine motor oil temperature, comprising:
According to the power and temperature curve, power and hygrometric formula are obtained: P=μ0+μ1T+μ2T2, wherein μ0、μ1And μ2For mould
Type coefficient；
The mathematical model is established according to the power and hygrometric formula.
7. a kind of test macro of engine resistance torque power characterized by comprising
Wheel hub experiment porch, the temperature for test environment to be arranged is constant, and test vehicle is fixed in rotating hub；
Acquisition device, for acquiring the rotating hub wheel side power F of gearbox towing astern temperature rise test2, engine towing astern temperature rise test rotating hub
Take turns side power F1, vehicle velocity V and engine motor oil temperature T；
Computing unit, for according to the rotating hub wheel side power F2 of the gearbox towing astern temperature rise test, engine towing astern temperature rise test
Rotating hub wheel side power F1 and vehicle velocity V, engine resistance torque power P is calculated.
8. the test macro of engine resistance torque power according to claim 7, which is characterized in that further include:
Fitting unit, for according to the engine resistance torque power P and the engine motor oil temperature T, fitting to obtain power
With temperature curve；
Modeling unit, for establishing engine resistance torque power and engine motor oil temperature according to the power and temperature curve
Mathematical model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002199.6A CN109163910A (en) | 2018-08-30 | 2018-08-30 | A kind of test method and system of engine resistance torque power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002199.6A CN109163910A (en) | 2018-08-30 | 2018-08-30 | A kind of test method and system of engine resistance torque power |
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| CN109163910A true CN109163910A (en) | 2019-01-08 |
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| CN201811002199.6A Pending CN109163910A (en) | 2018-08-30 | 2018-08-30 | A kind of test method and system of engine resistance torque power |
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Cited By (2)
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| CN114942098A (en) * | 2022-04-29 | 2022-08-26 | 重庆长安汽车股份有限公司 | Method for measuring maximum wheel side power of automatic transmission automobile |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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Application publication date: 20190108 |
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