CN104697792B - Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism - Google Patents
Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism Download PDFInfo
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- CN104697792B CN104697792B CN201510158055.XA CN201510158055A CN104697792B CN 104697792 B CN104697792 B CN 104697792B CN 201510158055 A CN201510158055 A CN 201510158055A CN 104697792 B CN104697792 B CN 104697792B
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Abstract
The invention discloses a fatigue endurance test measuring method for an automobile automatic gearbox P-gear parking mechanism. According to the method, a computer starts a driving motor through a motor controller so as to control the parking mechanism to park at the P gear; the computer collects torque signals output by a torque sensor through a data collector in real time, and whether P-gear parking is successful or not is judged according to collected torque of an axle shaft of the automatic gearbox to be measured; the computer automatically accumulates the number of recording tests until a stipulated number of tests are completed or the P-gear parking mechanism is ineffective, and the computer automatically ends testing. Test measuring is performed on the fatigue life of the P-gear parking mechanism through simulating test working conditions, on an ascending road and a descending road, of the automatic gearbox, so that the reliability and accuracy of the fatigue endurance tests performed on the automobile gearbox P-gear parking mechanism are improved.
Description
Technical field
The present invention relates to car test techniqes field, more particularly to automatic transmission P gear parking in automobile dynamic system
Energy test measurement method, specifically, is related to a kind of automatic gearbox P gear halting mechanism fatigue endurance tests measurement side
Method.
Background technology
With the development of vehicle transmission technology, automatic transmission is due to spies such as its processing ease, driving comfort, smooth gear shiftings
Point, has become an important development direction of automotive transmission.P keeps off halting mechanism as the important composition portion of automatic transmission
Point, P gear parking be made up of spreadet spreadet wheel, lock pin ratchet and a set of control device, under normal circumstances spreadet spreadet wheel with
Transmission output shaft is rigidly connected, and lock pin ratchet and control device are fixed on case of transmission.When automatic transmission is not hung
When entering P gears, control device control lock pin ratchet is in released state with spreadet spreadet wheel, and spreadet spreadet wheel is with transmission output shaft
Can arbitrarily rotate；When automatic transmission is linked into P keeps off, control device makes lock pin ratchet be combined with spreadet spreadet wheel, so as to
Transmission output shaft is made together with case of transmission rigidity locking, to guarantee that the automobile for carrying automatic transmission realizes long-time
Stably park, avoid car slipping phenomenon.However, in order to ensure P gear halting mechanisms can in automatic transmission Life cycle
By work, generally require to carry out fatigue durability testing to automatic transmission P gear halting mechanism newly developed, to verify that its fatigue can
By property.
Therefore, how fatigue durability platform to be carried out to its P gear halting mechanism according under automatic transmission real vehicle installment state
Frame is tested, at present both at home and abroad also without the report of correlation test measuring method.Therefore, a kind of automatic gearbox of design is needed badly
P keeps off halting mechanism fatigue endurance test measuring method, can completely simulate P gears parking machine under automatic transmission real vehicle installment state
Structure fatigue durability is tested, and this is significant for the automatic transmission construction cycle is shortened.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of automatic gearbox P gears
Halting mechanism fatigue endurance test measuring method, can be in simulation automatic transmission under the operating condition of test such as up gradient, gug
Test measurement is carried out to its P gear halting mechanism fatigue life, so as to improve the fatigue endurance that automatic transmission P keeps off halting mechanism
The reliability and accuracy of test.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is such：A kind of automatic gearbox P
Gear halting mechanism fatigue endurance test measuring method, it is characterised in that：
1）Automatic transmission to be measured is installed into positioning mode according to real vehicle to be fixed on test measurement device；
2）According to the spatial relation of the relative automatic transmission of selector on real vehicle, selector is mounted on into test
In measurement apparatus, and gear-shifting inhaul cable is kept off into halting mechanism according to the P of real vehicle connected mode and selector and automatic transmission to be measured
It is connected；
3）The input shaft of automatic transmission to be measured is connected with motor, torque sensor connects automatic transmission to be measured
Semiaxis and loader side output shaft, using torque on torque sensor direct measurement automatic transmission semiaxis to be measured, and load
Device opposite side output shaft is connected with the braking dish axle of brake；
4）Computer starts motor by electric machine controller, and by motor automatic transmission P gear to be measured is dragged
Halting mechanism spreadet spreadet wheel rotates, meanwhile, computer automatically begins to timing, after computer timing reaches setting time, calculates
Machine controlled motor controller stops motor work, and the work tooth for realizing spreadet spreadet wheel in process of the test selects randomness；
5）Computer controls gear shifting manipulator manipulates selector using gear shifting manipulator, and selector passes through gear-shifting inhaul cable
Control the halting mechanism income P gear of automatic transmission to be measured；Then computer is gradually by Loading Control device start-up loading device
The semiaxis of automatic transmission to be measured applies torsional load, to simulate car load P gear parking operating modes under on automatic transmission semiaxis to be measured
Moment of torsion；Meanwhile, the dtc signal that computer passes through the output of data acquisition unit Real-time Collection torque sensor, and be compared and sentence
It is disconnected, record and show, computer judges that P keeps off income success or not according to the shaft torque of automatic transmission to be measured half for collecting；
6）If computer acquisition to the torque value of torque sensor is much smaller than setting load, then it represents that P gear income failures,
Computer terminates test automatically；If computer acquisition to the torque value of torque sensor reaches setting load, computer is certainly
It is dynamic to start timing, setting time is reached until the torsional load load time of automatic transmission semiaxis to be measured, computer is by system
Movement controller control brake clamps brake disc；
7）Computer controls gear shifting manipulator, manipulates selector and stays out P gears by gear-shifting inhaul cable, after P gears are stayed out successfully,
Computer stops loading by Loading Control device controlled loading device；Then computer is released again by brake monitor control brake
Put brake disc；
8）Computer repeat automatically it is above-mentioned 4)～7) process of the test, and bulk registration test number (TN) automatically, until completing rule
Determine test number (TN) or P gear halting mechanism failures, computer terminates test automatically.
Compared with prior art, the invention has the advantages that：
1. test measurement method of the present invention realizes simple, operation principle reliability, it is possible to achieve process of the test Computer is complete
Journey is automatically controlled.
2. test measurement method of the present invention realizes that the work tooth of P gear parking lock gears selects random using motor
Property so that each tooth working strength of P gear parking lock gears is more nearly real vehicle operating mode, it is ensured that P gear halting mechanism fatigues
The accuracy and reliability of long duration test result.
3. half load on axle when test measurement method of the present invention keeps off parking using loader simulation real vehicle P, simulation precision height,
Highly versatile, for real vehicle under the operating condition of test such as upward slope, descending P gear fatigue endurance tests and different model automatic transmission
The torsional load that loader need to be only adjusted during P gear fatigue endurance tests is capable of achieving corresponding test.
4. test measurement method of the present invention can be measured continuously during automatic transmission P gear parking fatigue endurance test
Half shaft torque, so as to the reliability design that halting mechanism is kept off for automatic transmission P provides more available test datas.
Description of the drawings
Fig. 1 is that automatic transmission P keeps off halting mechanism fatigue endurance test control flow chart.
Fig. 2 is automatic transmission P gear halting mechanism fatigue endurance test measurement control principle drawing.
Fig. 3 is that automatic transmission P keeps off halting mechanism fatigue endurance test measurement apparatus sketch.
In accompanying drawing：1-ferrum ground；2-variator installing base frame；3-automatic transmission to be measured；4-semiaxis；5-torque
Sensor；6-sensor base；7-loader；8-loader base；9-brake；10-brake monitor；11-add
Set controller；12-computer；13-data acquisition unit；14-electric machine controller；15-selector base；16-motor bottom
Seat；17-motor；18-selector；19-gear-shifting inhaul cable；20-gear shifting manipulator.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.To help those skilled in the art to this
The inventive concept of invention, technical scheme have more complete, deep and accurate understanding.
Embodiment：Referring to Fig. 3, automatic transmission P disclosed by the invention keeps off halting mechanism fatigue endurance test measuring method
It is that halting mechanism fatigue endurance test measurement apparatus are kept off based on a kind of automatic transmission P；The test measurement device includes ferrum ground
Base 1, variator installing base frame 2, automatic transmission to be measured 3, semiaxis 4, torque sensor 5, sensor base 6, loader 7, plus
Carry device base 8, brake 9, brake monitor 10, Loading Control device 11, computer 12, data acquisition unit 13, electric machine controller
14th, selector base 15, motor base 16, motor 17, selector 18, gear-shifting inhaul cable 19 and gear shifting manipulator 20.Its
In, torque sensor 5, loader 7 and data acquisition unit 13 are selected according to the running parameter of automatic transmission to be measured 3.
Referring to Fig. 1, Fig. 2, a kind of automatic gearbox P keeps off halting mechanism fatigue endurance test measuring method, its measurement
Step is as follows：
1）Automatic transmission to be measured 3 is installed into positioning mode according to real vehicle to be fixed on test measurement device；According to automatically
Variator operating parameters select corresponding torque sensor 5, loader 7, Loading Control device 11 and data acquisition unit 13.
2）According to the space position relation of selector on real vehicle 18, gear-shifting inhaul cable 19 automatic transmission 3 relatively to be measured,
Selector 18 is mounted on test measurement device, and by gear-shifting inhaul cable 19 according to real vehicle connected mode and selector 18 and
The P gear halting mechanisms of automatic transmission to be measured 3 are connected, and adjustment position reaches fixed after test requirements document.
3）Torque sensor 5 is installed between the output shaft of loader 7 and semiaxis 4, for direct measurement fluid drive to be measured
The torque of the semiaxis of device 3；While the braking dish axle of the other end output shaft connecting brake 9 of loader 7, the other end of semiaxis 4 is by flower
Key teeth is rigidly connected with half axis hole of automatic transmission to be measured 3, so as to realize that the torsional load that loader 7 applies passes through semiaxis 4
It is transferred directly to the halting mechanism of automatic transmission to be measured 3.
4）Connected using the dtc signal of the semiaxis of automatic transmission to be measured 3 in 13 pairs of whole processs of the test of data acquisition unit
Continuous Real-time Collection, and in real time incoming computer 12 is preserved in real time, processed and shown, so that it is guaranteed that computer 12 can be real-time
Torque on the semiaxis of automatic transmission to be measured 3 is obtained, test measurement control principle is as shown in Figure 2.
5）Computer 12 starts motor 17 by electric machine controller 14, and motor 17 drags automatic transmission to be measured
3 P gear halting mechanism spreadet spreadet wheel rotations, computer 12 automatically begins to the cumulative time, when the timing of computer 12 reaches setting
Between after, 12 controlled motor controller of computer 14 stop motor 17, realize spreadet spreadet wheel in process of the test work tooth choosing
Select randomness.
6）The control gear shifting manipulator 20 of computer 12 manipulates the shift handle of selector 18, and selector 18 passes through gear-shifting inhaul cable
The halting mechanism income P gear of 19 controls automatic transmission 3 to be measured；And computer 12 passes through the start-up loading device of Loading Control device 11
7 gradually pass through semiaxis 4 applies torsional load for automatic transmission to be measured 3, and to simulate car load P automatic transmission under parking operating mode is kept off
Torque on semiaxis；Meanwhile, the torque letter that computer 12 is collected by the real-time monitoring torque sensor 5 of data acquisition unit 13
Number, computer 12 judges that P keeps off income success or not according to the level of torque for collecting.
7）If computer 12 collects the dtc signal of torque sensor 5 much smaller than setting load, then it represents that P keeps off income
Failure, computer 12 terminates test automatically；If torque value reaches setting load on the semiaxis that computer 12 is collected, calculate
Machine 12 starts simultaneously at self-clocking, and until the torsional load load time of the semiaxis of automatic transmission to be measured 3 stipulated time is reached, meter
Calculation machine 12 clamps brake disc by 10 control brake of brake monitor 9, and to realize simulation real vehicle to stay out before P gears foot brake is stepped on
Function.
8）The control gear shifting manipulator 20 of computer 12 manipulates selector 18 and stays out P gears by gear-shifting inhaul cable 19, when P gears are stayed out
After success, computer 12 stops loading by 11 controlled loading device of Loading Control device 7；Then computer 12 passes through again control for brake
10 control brake of device 9 discharges brake disc.
9）The automatic bulk registration test number (TN) of computer 12, and computer 12 has relatively currently completed test number (TN) automatically
With regulation test number (TN), when computer 12 monitors that completing test number (TN) reaches regulation test number (TN), then computer 12 is automatic
Stop test.
10）Repetition is above-mentioned 5)～9) process of the test, until P gear parking failures, i.e. halting mechanism failure, computer 12 is automatic
Terminate test.
The automatic transmission P gear halting mechanism data of fatigue life obtained using the test measurement method of the present invention is accurate
It is really reliable, and can be with whole record automatic transmission P gear halting mechanism fatigue endurance test process torque Changing Pattern, this
Bright measurement result keeps off the great significance for design of halting mechanism to optimizing automatic transmission P.
Finally it should be noted that above example is only to illustrate technical scheme rather than restriction technologies side
Case, it will be understood by those within the art that, those modify or equivalent to technical scheme, and
Without departing from the objective and scope of the technical program, all should cover in the middle of scope of the presently claimed invention.
Claims (1)
1. a kind of automatic gearbox P keeps off halting mechanism fatigue endurance test measuring method, it is characterised in that：
1）Automatic transmission to be measured is installed into positioning mode according to real vehicle to be fixed on test measurement device；
2）According to the spatial relation of the relative automatic transmission of selector on real vehicle, selector is mounted on into test measurement
On device, and gear-shifting inhaul cable is connected according to real vehicle connected mode with the P gear halting mechanisms of selector and automatic transmission to be measured；
3）The input shaft of automatic transmission to be measured is connected with motor, torque sensor connects automatic transmission semiaxis to be measured
With loader side output shaft, using torque on torque sensor direct measurement automatic transmission semiaxis to be measured, and loader is another
Side output shaft is connected with the braking dish axle of brake；
4）Computer starts motor by electric machine controller, drags automatic transmission P to be measured by motor and keeps off parking
Mechanism's spreadet spreadet wheel rotation, meanwhile, computer automatically begins to timing, after computer timing reaches setting time, computer control
Electric machine controller processed stops motor work, and the work tooth for realizing spreadet spreadet wheel in process of the test selects randomness；
5）Computer controls gear shifting manipulator manipulates selector using gear shifting manipulator, and selector is by gear-shifting inhaul cable control
The halting mechanism income P gear of automatic transmission to be measured；Then computer is gradually to be measured by Loading Control device start-up loading device
The semiaxis of automatic transmission applies torsional load, to simulate car load P gear parking operating modes under moment of torsion on automatic transmission semiaxis to be measured；
Meanwhile, the dtc signal that computer passes through the output of data acquisition unit Real-time Collection torque sensor, and multilevel iudge is carried out, record
And show, computer judges that P keeps off income success or not according to the shaft torque of automatic transmission to be measured half for collecting；
6）If computer acquisition to the torque value of torque sensor is much smaller than setting load, then it represents that P gear income failures, calculate
Machine terminates test automatically；If computer acquisition to the torque value of torque sensor reaches setting load, computer is opened automatically
Beginning timing, until the torsional load load time of automatic transmission semiaxis to be measured setting time is reached, and computer is by braking control
Device control brake processed clamps brake disc；
7）Computer controls gear shifting manipulator, gear shifting manipulator manipulates selector and stays out P gears by gear-shifting inhaul cable, when P gears are stayed out
After success, computer stops loading by Loading Control device controlled loading device；Then computer is again by brake monitor control
Brake discharges brake disc；
8）Computer repeat automatically it is above-mentioned 4)～7) process of the test, and bulk registration test number (TN) automatically, until completing regulation examination
Number of times or P gear halting mechanism failures are tested, computer terminates test automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158055.XA CN104697792B (en) | 2015-04-03 | 2015-04-03 | Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158055.XA CN104697792B (en) | 2015-04-03 | 2015-04-03 | Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism |
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| CN104697792A CN104697792A (en) | 2015-06-10 |
| CN104697792B true CN104697792B (en) | 2017-04-12 |
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| CN201510158055.XA Expired - Fee Related CN104697792B (en) | 2015-04-03 | 2015-04-03 | Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136455A (en) * | 2015-10-13 | 2015-12-09 | 哈尔滨东安汽车发动机制造有限公司 | Parking rolling bar spring reliability test device and test method |
| CN106769106B (en) * | 2017-03-14 | 2023-05-16 | 株洲齿轮有限责任公司 | Ramp parking simulation test device and test method for automobile P gear system |
| CN107063714B (en) * | 2017-04-28 | 2019-03-22 | 重庆长安新能源汽车科技有限公司 | A kind of pure electric automobile P gear halting mechanism endurance test method |
| CN111289246B (en) * | 2018-12-06 | 2021-04-06 | 广州汽车集团股份有限公司 | Durability test method for parking mechanism of double-clutch automatic transmission |
| CN111766078B (en) * | 2019-03-31 | 2022-08-19 | 上海华依科技集团股份有限公司 | Test method for reliability test of electronic parking mechanism |
| CN112067284B (en) * | 2020-09-09 | 2022-08-02 | 广州汽车集团股份有限公司 | Off-line detection method and device for automobile parking mechanism |
| CN113820127A (en) * | 2021-09-22 | 2021-12-21 | 哈尔滨东安汽车发动机制造有限公司 | Method for testing reliability of parking mechanism of automatic transmission |
| CN113759878B (en) * | 2021-09-26 | 2023-08-29 | 重庆美沣秦安汽车驱动系统有限公司 | Control system, method and terminal for joint action of P-gear actuator and motor |
| CN114624021B (en) * | 2022-02-22 | 2023-07-25 | 东风汽车集团股份有限公司 | Test bed, torsion fatigue test method for transmission locking mechanism and related equipment |
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| CN201259463Y (en) * | 2008-08-18 | 2009-06-17 | 安徽巨一自动化装备有限公司 | AMT stage changeover endurance performance experiment platform |
| CN202033187U (en) * | 2011-03-29 | 2011-11-09 | 长城汽车股份有限公司 | Test platform for automatic transmission stopping mechanism |
| CN102313646A (en) * | 2011-07-22 | 2012-01-11 | 上海中科深江电动车辆有限公司 | P position test system used for automatic gearbox and test method thereof |
| CN103487252A (en) * | 2013-09-24 | 2014-01-01 | 重庆市科学技术研究院 | Automobile transmission rack endurance test operation state monitoring method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000105171A (en) * | 1998-09-29 | 2000-04-11 | Automax Kk | Testing apparatus for power transmission system device |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259463Y (en) * | 2008-08-18 | 2009-06-17 | 安徽巨一自动化装备有限公司 | AMT stage changeover endurance performance experiment platform |
| CN202033187U (en) * | 2011-03-29 | 2011-11-09 | 长城汽车股份有限公司 | Test platform for automatic transmission stopping mechanism |
| CN102313646A (en) * | 2011-07-22 | 2012-01-11 | 上海中科深江电动车辆有限公司 | P position test system used for automatic gearbox and test method thereof |
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