CN106124126A - The method for testing and analyzing that the unbalance dynamic of whole vehicle state underdrive system separates - Google Patents
The method for testing and analyzing that the unbalance dynamic of whole vehicle state underdrive system separates Download PDFInfo
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- CN106124126A CN106124126A CN201610529355.9A CN201610529355A CN106124126A CN 106124126 A CN106124126 A CN 106124126A CN 201610529355 A CN201610529355 A CN 201610529355A CN 106124126 A CN106124126 A CN 106124126A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 101
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- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
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Classifications
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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
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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Abstract
The invention discloses the method for testing and analyzing that the unbalance dynamic of a kind of whole vehicle state underdrive system separates, first, the vibratory response under test base state；Secondly, power transmission shaft adds test mass, and tests the vibratory response under this state；Then, install after power transmission shaft is taken apart and turned over turnback, test the vibratory response under this state；Finally, the residue unbalancing value of power train all parts is calculated.The present invention can test and isolate the unbalancing value of all parts in drive system on car load.
Description
Technical field
The invention belongs to automotive transmission, be specifically related to the test that the unbalance dynamic of a kind of whole vehicle state underdrive system separates and divide
Analysis method.
Background technology
At present, consumer and automaker to 4-wheel driven car and after drive noise that drive system produces and vibration problem more
More pay close attention to.Wherein, power train includes power transmission shaft, drive axle and power takeoff (PTU) or variator, be 4-wheel driven car and after drive pass
The key component of dynamic system, low-frequency noise and vibration problem that its unbalance dynamic produces are more and more prominent.
The most all there is different size of residue in the rotary shaft of power transmission shaft, power takeoff, variator and drive axle
Unbalancing value.After they are assemblied in car load, the residue unbalance dynamic of system can be produced.Generally, only transmission
Axle does unbalance dynamic test in the fabrication process and checks.The residue of power transmission shaft, drive axle and power takeoff (or variator) is dynamic not
Balance phase place can be overlapped mutually during car load assembles so that the unbalance dynamic of drive system may produce vibration and make an uproar relatively greatly
Sound problem.The imbalance of power train is formed by stacking by the unbalance vector of each rotary part, typically by controlling parts not
Balance reduces the imbalance of drive system.Therefore, car load is tested and isolates the unbalance dynamic of drive system all parts
Measure the residue unbalancing value to controlling drive system and have very important meaning.
Summary of the invention
It is an object of the invention to provide the method for testing and analyzing that the unbalance dynamic of a kind of whole vehicle state underdrive system separates, can be
Test and isolate the unbalancing value of all parts in drive system on car load.
The method for testing and analyzing that the unbalance dynamic of whole vehicle state of the present invention underdrive system separates, comprises the following steps:
The first step, placement sensor:
(1a) photoelectric sensor is arranged near power transmission shaft, it is ensured that photoelectric sensor can detect transmission
The rotating speed of axle；
(1b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, by unidirectional acceleration transducer cloth
Put on drive axle；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in
On variator；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in
On power takeoff；
Second step, chooses test speed:
Vehicle is placed on two drive or in 4 wheel driven rotating hub, or on smooth Colophonium and straight road surface, by vehicle by 60km/h
Even accelerating to 140km/h, record the vibratory response of unidirectional acceleration transducer, the speed choosing vibration amplitude and phase stabilization is made
For follow-up test speed；
3rd step, the vibratory response of test power train original state:
Making vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer, test n times, record is every
Once test the vibration amplitude and phase place obtained；
4th step, the vibratory response after increasing test mass of the test power train:
Power transmission shaft increases test mass, makes vehicle at selected vehicle speed cruise, measure the vibration of unidirectional acceleration transducer
Response, tests n times, and the vibration amplitude and phase place obtained tested each time in record；
5th step, the vibratory response after power transmission shaft overturns 180 ° of the test power train:
(5a) test mass is taken off；
(5b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, pull down power transmission shaft and drive axle is defeated
Enter the connecting bolt of axle, be connected with the power shaft connecting bolt of drive axle after power transmission shaft is overturn 180 °；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, pull down power transmission shaft and transmission output shaft
Connecting bolt, power transmission shaft is overturn after 180 ° and is connected with transmission output shaft connecting bolt；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, pull down power transmission shaft and power takeoff output shaft
Connecting bolt, power transmission shaft is overturn after 180 ° and is connected with power takeoff output shaft connecting bolt；
(5c) make vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer, test n times, note
The vibration amplitude and phase place obtained is tested in record each time；
6th step, calculating power transmission shaft and drive axle, or variator, or the residue unbalancing value of power takeoff:
Based on the data measured by described 3rd step to described 5th step, influence coefficient method is used to calculate power transmission shaft and drive
Dynamic bridge power shaft, or transmission output shaft, or the residue unbalancing value of power takeoff output shaft.
When vehicle is tested on smooth Colophonium and straight road surface, the requirement of road pavement is as follows:
(1) road surface is dried without hydrops；
(2) road surface is without accumulated snow, dust, sandstone and other fragments being scattered.
During measurement, wind speed not can exceed that 5m/s.
In the described first step,
When testing the residue unbalancing value of power transmission shaft and drive axle power shaft, unidirectional acceleration transducer is arranged in
Near the dead eye of drive axle power shaft within 1cm；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in
Near the dead eye of transmission output shaft within 1cm；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in
Near the dead eye of power takeoff output shaft within 1cm.
Beneficial effects of the present invention: the invention provides one be enclosed within car load isolate power train all parts residue move
The test of amount of unbalance and the method for analysis so that the dynamic injustice of rotary shaft residue of power transmission shaft, drive axle and power takeoff or variator
Measurement can objective quantification, for drive system unbalance dynamic produce vibration noise problem optimization provide direction.Meanwhile, evade
The problem each remaining unbalancing value that only aptitude test goes out on unbalance dynamic machine.
Accompanying drawing explanation
Fig. 1 is the layout of each sensor in the residue unbalancing value testing power transmission shaft and drive axle power shaft in the present invention
Figure；
Fig. 2 is the layout drawing of test mass in the residue unbalancing value testing power transmission shaft and drive axle power shaft in the present invention；
Fig. 3 is to overturn after power transmission shaft 180 degree the scheme of installation with drive axle in the present invention；
Fig. 4 is the unbalance dynamic vector correlation of power transmission shaft, drive axle power shaft and system；
In figure: 1 power transmission shaft, 2 drive axles, 3-test mass, 4-photoelectric sensor, the unidirectional acceleration transducer of 5-, 6-
Drive axle power shaft.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
The method for testing and analyzing that whole vehicle state underdrive system unbalance dynamic as shown in Figure 1 separates, comprises the following steps:
The first step, placement sensor:
(1a) photoelectric sensor 4 is arranged near power transmission shaft, it is ensured that photoelectric sensor 4 can detect biography
The rotating speed of moving axis.
(1b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, by unidirectional acceleration transducer 5
It is disposed adjacent near the dead eye of drive axle power shaft within 1cm.
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, unidirectional acceleration transducer 5 is arranged
Within 1cm near the dead eye of transmission output shaft.
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, unidirectional acceleration transducer 5 is arranged
Within 1cm near the dead eye of power takeoff output shaft.
Second step, chooses test speed:
Vehicle is placed on two drive or in 4 wheel driven rotating hub, or on smooth Colophonium and straight road surface；By vehicle by 60km/h
Even accelerate to 140km/h, record the vibratory response of unidirectional acceleration transducer 5, choose the speed of vibration amplitude and phase stabilization
As follow-up test speed.
3rd step, the vibratory response of test power train original state:
Making vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer 5, test n times, record is every
Once test the vibration amplitude and phase place obtained.
4th step, the vibratory response after increasing test mass of the test power train:
Power transmission shaft increases test mass, makes vehicle at selected vehicle speed cruise, measure the vibration of unidirectional acceleration transducer 5
Response, tests n times, and the vibration amplitude and phase place obtained tested each time in record.
5th step, the vibratory response after power transmission shaft overturns 180 ° of the test power train:
(5a) test mass is taken off.
(5b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, pull down power transmission shaft and drive axle is defeated
Enter the connecting bolt of axle, be connected with the power shaft connecting bolt of drive axle after power transmission shaft is overturn 180 °.
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, pull down power transmission shaft and transmission output shaft
Connecting bolt, power transmission shaft is overturn after 180 ° and is connected with transmission output shaft connecting bolt.
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, pull down power transmission shaft and power takeoff output shaft
Connecting bolt, power transmission shaft is overturn after 180 ° and is connected with power takeoff output shaft connecting bolt.
(5c) make vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer 5, test n times, note
The vibration amplitude and phase place obtained is tested in record each time.
6th step, calculating power transmission shaft and drive axle, or variator, or the residue unbalancing value of power takeoff:
Based on the data measured by described 3rd step to described 5th step, influence coefficient method is used to calculate power transmission shaft and drive
Dynamic bridge power shaft, or transmission output shaft, or the residue unbalancing value of power takeoff output shaft.
Below as a example by isolating power transmission shaft and drive axle respective residue unbalancing value, the present invention is carried out detailed
Illustrate:
1, near the dead eye of drive axle power shaft 6, unidirectional acceleration transducer 5 is being arranged, close within 1cm
Arrange photoelectric sensor 4 near power transmission shaft 1 within 1cm, see Fig. 1.
2, test request drives or in 4 wheel driven rotating hub two, or carries out on smooth Colophonium and straight road surface；Road surface is dried nothing
Hydrops, clears up the foreign material such as road snow, dust, sandstone and other fragments being scattered.During measurement, wind speed is not to be exceeded 5m/s,
Must be noted that measurement result is not affected by fitful wind.Vehicle-state should be checked, it is ensured that vehicle-state is intact before test.By vehicle by
60km/h is even accelerates to 140km/h, records the vibratory response of unidirectional acceleration transducer 5.Choose vibration amplitude and phase stabilization
Speed be follow-up test speed (such as: 120km/h).
3, the vibratory response of test power train original state:
Make vehicle at selected vehicle speed cruise (120km/h), test the vibratory response of unidirectional acceleration transducer 5Survey
Trying 6 times, the vibration amplitude and phase place obtained tested each time in record, sees table 1.If power transmission shaft 1 and drive axle power shaft 6
Unbalancing value is respectivelyWithThen:
WhereinIt is to affect coefficient, is also vector.Due to vibratory response, affect coefficient and unbalancing value is vector,
So formula (1) can be converted into:
4, test power train vibratory response after increasing test mass:
Test out system affects coefficient, for calculating the residue unbalancing value of system.At power transmission shaft 1 near drive axle
End on add the test mass of certain massSee Fig. 2.Again make vehicle operate in selected speed (120km/h) to patrol
Boat, tests the vibratory response of unidirectional acceleration transducer 5Testing 6 times, the vibration amplitude and phase obtained tested each time in record
Position, sees table 1, then obtain affecting coefficient
5, test power transmission shaft and the residue unbalancing value of drive axle: take off test mass 3, pull down power transmission shaft 1 and drive axle is defeated
Enter the connecting bolt of axle 6, be connected with connecting bolt with drive axle power shaft 6 after power transmission shaft 1 is turned over turnback, see Fig. 3.?
After, make vehicle again in certain speed (120km/h) cruise, test the vibratory response of unidirectional acceleration transducer 5And remember
The vibration amplitude and phase place obtained is tested in record each time, sees table 1, then:
6, the data obtained by above-mentioned test, use influence coefficient method can calculate the surplus of power transmission shaft 1 and drive axle
Remaining unbalancing value, sees table 2.
Table 1 is the 3rd step, the 4th step and the test recorded data of the 5th step:
Table 1
Table 2 is that the data according to table 1 pass through formula (1) to formula (7) calculated unbalancing value.
Table 2
Fig. 4 is the unbalance dynamic vector correlation of power transmission shaft, drive axle power shaft and system.
Claims (4)
1. the method for testing and analyzing that whole vehicle state underdrive system unbalance dynamic separates, it is characterised in that comprise the following steps:
The first step, placement sensor:
(1a) photoelectric sensor is arranged near power transmission shaft, it is ensured that photoelectric sensor can detect power transmission shaft
Rotating speed；
(1b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, unidirectional acceleration transducer is arranged in
On drive axle；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, unidirectional acceleration transducer is arranged in speed change
On device；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is arranged in power taking
On device；
Second step, chooses test speed:
Vehicle is placed on two drive or in 4 wheel driven rotating hub, or on smooth Colophonium and straight road surface, vehicle is added by 60km/h is even
Speed, to 140km/h, records the vibratory response of unidirectional acceleration transducer, chooses the speed of vibration amplitude and phase stabilization as rear
Continuous test speed；
3rd step, the vibratory response of test power train original state:
Making vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer, test n times, record is each time
Test the vibration amplitude and phase place obtained；
4th step, the vibratory response after increasing test mass of the test power train:
Power transmission shaft increases test mass, makes vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer,
Test n times, the vibration amplitude and phase place obtained tested each time in record；
5th step, the vibratory response after power transmission shaft overturns 180 ° of the test power train:
(5a) test mass is taken off；
(5b) when testing the residue unbalancing value of power transmission shaft and drive axle power shaft, power transmission shaft and drive axle power shaft are pulled down
Connecting bolt, power transmission shaft is overturn after 180 ° and is connected with the power shaft connecting bolt of drive axle；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, pull down the company of power transmission shaft and transmission output shaft
Connecting bolt, is connected with transmission output shaft connecting bolt after power transmission shaft is overturn 180 °；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, pull down power transmission shaft and the company of power takeoff output shaft
Connecting bolt, is connected with power takeoff output shaft connecting bolt after power transmission shaft is overturn 180 °；
(5c) making vehicle at selected vehicle speed cruise, measure the vibratory response of unidirectional acceleration transducer, test n times, record is every
Once test the vibration amplitude and phase place obtained；
6th step, calculating power transmission shaft and drive axle, or variator, or the residue unbalancing value of power takeoff:
Based on the data measured by described 3rd step to described 5th step, influence coefficient method is used to calculate power transmission shaft and drive axle
Power shaft, or transmission output shaft, or the residue unbalancing value of power takeoff output shaft.
The method for testing and analyzing that the unbalance dynamic of whole vehicle state the most according to claim 1 underdrive system separates, its feature exists
In: when testing on smooth Colophonium and straight road surface when vehicle, the requirement of road pavement is as follows:
(1) road surface is dried without hydrops；
(2) road surface is without accumulated snow, dust, sandstone and other fragments being scattered.
The method for testing and analyzing that the unbalance dynamic of whole vehicle state the most according to claim 1 and 2 underdrive system separates, its feature
Being: during measurement, wind speed not can exceed that 5m/s.
The method for testing and analyzing that the unbalance dynamic of whole vehicle state the most according to claim 1 and 2 underdrive system separates, its feature
It is: in the described first step,
When testing the residue unbalancing value of power transmission shaft and drive axle power shaft, unidirectional acceleration transducer is disposed adjacent to
Near the dead eye of drive axle power shaft within 1cm；
When testing the residue unbalancing value of power transmission shaft and transmission output shaft, unidirectional acceleration transducer is disposed adjacent to
Near the dead eye of transmission output shaft within 1cm；
When testing the residue unbalancing value of power transmission shaft and power takeoff output shaft, unidirectional acceleration transducer is disposed adjacent to
Near the dead eye of power takeoff output shaft within 1cm.
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| CN201610529355.9A CN106124126B (en) | 2016-07-07 | 2016-07-07 | The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic |
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| CN201610529355.9A CN106124126B (en) | 2016-07-07 | 2016-07-07 | The separated method for testing and analyzing of whole vehicle state underdrive system unbalance dynamic |
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| CN106124126B CN106124126B (en) | 2018-05-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872105A (en) * | 2017-04-26 | 2017-06-20 | 重庆长安汽车股份有限公司 | Whole vehicle state underdrive system multiaspect residue unbalance dynamic method of testing |
| CN107063572A (en) * | 2017-04-26 | 2017-08-18 | 重庆长安汽车股份有限公司 | The uneven method of testing of transmission system based on least square method |
| CN108760029A (en) * | 2018-03-16 | 2018-11-06 | 江铃汽车股份有限公司 | Interior noise sensitivity test method caused by transmission system imbalance |
| CN108801550A (en) * | 2017-04-26 | 2018-11-13 | 江铃汽车股份有限公司 | A kind of equivalent uneven test method of automotive transmission |
| CN112683529A (en) * | 2020-12-04 | 2021-04-20 | 东风汽车股份有限公司 | Automobile transmission shaft bending endurance test device and method thereof |
| CN114112192A (en) * | 2021-11-26 | 2022-03-01 | 中国汽车工程研究院股份有限公司 | Fan residual unbalance testing and analyzing method based on transfer function |
| CN114429000A (en) * | 2022-04-06 | 2022-05-03 | 江铃汽车股份有限公司 | Method, system and equipment for predicting dynamic unbalance finished automobile response of transmission system |
| CN114813116A (en) * | 2022-04-07 | 2022-07-29 | 中国第一汽车股份有限公司 | Dynamic balance sensitivity test analysis method for passenger car transmission system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872105A (en) * | 2017-04-26 | 2017-06-20 | 重庆长安汽车股份有限公司 | Whole vehicle state underdrive system multiaspect residue unbalance dynamic method of testing |
| CN107063572A (en) * | 2017-04-26 | 2017-08-18 | 重庆长安汽车股份有限公司 | The uneven method of testing of transmission system based on least square method |
| CN108801550A (en) * | 2017-04-26 | 2018-11-13 | 江铃汽车股份有限公司 | A kind of equivalent uneven test method of automotive transmission |
| CN107063572B (en) * | 2017-04-26 | 2020-05-08 | 重庆长安汽车股份有限公司 | Least square method-based dynamic unbalance testing method for transmission system |
| CN108760029A (en) * | 2018-03-16 | 2018-11-06 | 江铃汽车股份有限公司 | Interior noise sensitivity test method caused by transmission system imbalance |
| CN112683529A (en) * | 2020-12-04 | 2021-04-20 | 东风汽车股份有限公司 | Automobile transmission shaft bending endurance test device and method thereof |
| CN112683529B (en) * | 2020-12-04 | 2023-03-31 | 东风汽车股份有限公司 | Automobile transmission shaft bending endurance test device and method thereof |
| CN114112192A (en) * | 2021-11-26 | 2022-03-01 | 中国汽车工程研究院股份有限公司 | Fan residual unbalance testing and analyzing method based on transfer function |
| CN114429000A (en) * | 2022-04-06 | 2022-05-03 | 江铃汽车股份有限公司 | Method, system and equipment for predicting dynamic unbalance finished automobile response of transmission system |
| CN114813116A (en) * | 2022-04-07 | 2022-07-29 | 中国第一汽车股份有限公司 | Dynamic balance sensitivity test analysis method for passenger car transmission system |
| CN114813116B (en) * | 2022-04-07 | 2024-06-11 | 中国第一汽车股份有限公司 | Dynamic balance sensitivity test analysis method for passenger car transmission system |
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|---|---|
| CN106124126B (en) | 2018-05-01 |
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