CN109612636A - A kind of transmission circulating oil automatic transfer measurement workbench - Google Patents
A kind of transmission circulating oil automatic transfer measurement workbench Download PDFInfo
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- CN109612636A CN109612636A CN201811513092.8A CN201811513092A CN109612636A CN 109612636 A CN109612636 A CN 109612636A CN 201811513092 A CN201811513092 A CN 201811513092A CN 109612636 A CN109612636 A CN 109612636A
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- oil
- speed changer
- test
- oily
- mouthpiece
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Details Of Gearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of transmission circulating oil automatic transfers to measure workbench, including the oil temperature for testing tested speed changer, oil pressure and flow indicator whether He Ge oily switching test mechanism, oily adapter and for be tested speed changer provide driving and load torque speed changer loading module, tested speed changer is installed on the speed changer loading module, the oil switching test mechanism passes through oily adapter and provides transmission oil to tested speed changer, the oil adapter includes test adaptor portion and speed changer interconnecting piece, the test adaptor portion and oily switching test mechanism are in the connection of angle, the connection of the hydraulic fluid port of the speed changer interconnecting piece and speed changer.Compared with prior art, transmission circulating oil automatic transfer measurement workbench provided by the invention is tested for transmission oil, and the self shifter demand of different gears whether is met for testing transmission oil, highly-safe, automatically testing saves employee hours, convenient for operation, have extremely strong professional.
Description
This case is the divisional application of Chinese patent application 2018110708132.
Technical field
The present invention relates to a kind of speed changers to measure workbench, belongs to automobile manufacturing field, specifically a kind of speed changer circulation
Oily automatic transfer measures workbench.
Background technique
Automatic transmission is one of core component of automobile, and internal part rapidly rotates when speed change works, and precision-fit is
Guarantee the service life of speed changer, it is necessary to reduce frictional force, therefore, in gearbox has a large amount of lubricating oil, in order to avoid
There is oil leakage phenomenon in automatic transmission, will do it test before factory in the speed changer test process, need to speed changer into
Fuel-displaced progress pressure, flow monitoring, the prior art are typically all to pass through sliding platform to be pushed in test equipment in test, so
Movable table inwardly moves in test equipment afterwards, is clamped speed changer, prevents speed changer from shaking during the test, meanwhile, note
Oil pipe is arranged on movable table, the pump nozzle pair while movable table is clamped speed changer on oil fuel tube and speed changer
It connects, but since movable table translates back and forth, is easy to appear butting error；And oil fuel tube with the oiling on speed changer
The included adapter stretching of test equipment is docked with the inlet (outlet) of speed changer when mouth docks, automatic pine after testing
It opens, testing rear oil will miss from speed changer, cause to need after testing to carry out repairing to speed changer, then manually will be into plug
(out) hydraulic fluid port blocks, and influences productive temp and has ATF oil stream to go out, and causes cost to waste and enhance labor intensity and increases the time.
Summary of the invention
For technical problem of the existing technology, the present invention provides a kind of 6AT speed changer test oil-leakage-prevention adapter.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of transmission circulating oil automatic transfer measurement workbench, including oily switching test mechanism, oily adapter, speed changer
Loading module and control module；The oil switching test mechanism is used to provide transmission oil to tested speed changer, and becomes tested
Whether oil temperature, oil pressure and the flow indicator that fast device gear rests on the tested speed changer of test when P/R/N/D is blocked respectively are qualified；Institute
It states oily adapter and connects oily switching test mechanism and tested speed changer, after into speed changer (to its oil filler point), injection ATF is oily,
Transmission oil is successively in oily switching test mechanism, oily adapter, tested speed changer internal circulation flow (forming a closed circuit)；Institute
It states speed changer loading module and provides driving and load torque for installing tested speed changer, and to tested speed changer；The control
Molding block is connect with oily switching test mechanism and speed changer loading module respectively, for controlling the load of tested speed changer, and will
The data acquisition system at the end PC is transferred to after pressure, temperature and data on flows progress analog-to-digital conversion that oily switching test mechanism acquires
System.
The oil adapter includes test adaptor portion and speed changer interconnecting piece, the test adaptor portion and oily switching test machine
The hydraulic fluid port of structure connection, the speed changer interconnecting piece and speed changer connects, and the test of parallel arrangement is equipped in the test adaptor portion
Oil inlet and test oil export, the interior oil inlet mouthpiece and fuel-displaced mouthpiece for being equipped with parallel arrangement of the speed changer interconnecting piece, the survey
Formation testing import is connected to oil inlet mouthpiece, and the test oil export is connected to fuel-displaced mouthpiece.
The test oil inlet or test oil export are above oil inlet mouthpiece or fuel-displaced mouthpiece.
The oil inlet mouthpiece of the speed changer interconnecting piece is connected to speed changer oil inlet；The oil outlet of the speed changer interconnecting piece
Mouth is connected to speed changer oil outlet.
The oil switching test mechanism includes oil inlet pipe, oil return line, valve group and sensor group, the valve group and
Sensor group is installed on oil inlet pipe or oil return line, the oil inlet pipe and test oil inlet communication, the oil return line
With test oil outlet.
The test oil inlet in the test adaptor portion and test the oil export oil inlet pipe with oily switching test mechanism respectively
It is connected to oil return line (measurement pipeline).
Specifically, the port of the oil inlet pipe is equipped with telescopic mouth, the telescopic mouth and test oil inlet communication；It is described fuel-displaced
The port of pipeline also is provided with telescopic mouth, the telescopic mouth and test oil outlet.
The strainer valve and filter are provided with two groups, and manage before and after first group and second group of strainer valve and filter
Pressure sensor is respectively set in road, for monitoring the oil pressure under different filter conditions.
The control module is connect with oily switching test mechanism and speed changer loading module respectively, is surveyed for adjusting oil switching
The operating parameter of test-run a machine structure and speed changer loading module, and complete recording and transmitting for tested transmission torque and rotary speed data.
The oil adapter further includes fixed part, and the oil adapter is connected by fixed part with speed changer.
The fixed part is equipped with an adapter fixation hole, and the bolt cooperation of the adapter fixation hole and speed changer will be will become
Fast device is fixed on oily adapter.
Processing technology hole is additionally provided with by the adapter fixation hole, the processing technology hole is used for fuel feed hole deep processing, just
In oil inlet oil duct is connected to inlet nozzle connector.
The processing technology hole seals interior hexagonal jackscrew equipped with one, and hexagonal jackscrew is for processing technology hole in the sealing
It blocks, prevents in test process from this hole oil leak.
The oil inlet mouthpiece connect by an inlet nozzle with speed changer oil inlet, the fuel-displaced mouthpiece pass through an oil outlet and
The connection of speed changer oil outlet.
Sealing ring is equipped between the oil inlet mouthpiece or fuel-displaced mouthpiece and inlet nozzle or oil outlet.
The inlet nozzle or oil outlet are additionally provided with far from one end of oil inlet mouthpiece or fuel-displaced mouthpiece for preventing damage speed change
The gasket of device hydraulic fluid port and sealing ring for sealing oil nozzle Yu speed changer hydraulic fluid port gap.
Compared with prior art, transmission circulating oil automatic transfer measurement workbench provided by the invention is used for transmission oil
Whether test, can need in terms of different gears meet self shifter transmission performance after being passed through lubricating oil for testing speed changer
It asks.Transmission circulating oil automatic transfer provided by the invention measures workbench, highly-safe, can whole full-automatic testing, save
Employee hours have extremely strong professional convenient for operation.The oily switching test mechanism structure used is simple, will be unable in speed changer
The oil lubrication test that inside carries out is transferred to outside speed changer, the knot that the oily adapter of addition is docked with existing movable table
The adapter of structure complexity is different, and the oil adaptor structure is compact, and low cost is easy to operate, is loaded on tested speed changer, highest order
Higher than speed changer hydraulic fluid port, testing rear test oil will not flow out, and mounting means is flexible, and speed changer is tested after testing and is flowed into dress
Station is filled with blocking, oily adapter is taken out and is installed on next speed changer to reuse, when changing transmission circulating oil measurement
Lubricating oil access port, need the awkward situation of repairing after fundamentally avoiding speed changer test；It is connect in oily adapter with speed changer
Position, which is all designed, various sealing elements, speed changer oil leak in assembling process damage or test process is prevented, after the completion of testing
Speed changer can direct outbound, it is no longer necessary to which production and human cost have been saved in artificial oiling.
Detailed description of the invention
Fig. 1 is workbench process flow chart provided by the invention；
Fig. 2 is oily adapter side view provided by the invention；
Fig. 3 is oily adapter explosive view provided by the invention；
Fig. 4 is oily adapter oil circuit schematic diagram provided by the invention；
Wherein, the 1, first strainer valve；1 ', first filter；10, oily adapter；11, test adaptor portion；111, test oil
Import；112, oil export is tested；12, speed changer interconnecting piece；121, oil inlet mouthpiece；122, fuel-displaced mouthpiece；123, inlet nozzle；124,
Oil outlet；125, sealing ring；126, gasket；127, sealing ring；13, fixed part；131, adapter fixation hole；132, work is processed
Skill hole；133, hexagonal jackscrew in sealing；2, the second strainer valve；2 ', second filter.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
A kind of embodiment of transmission circulating oil automatic transfer measurement workbench provided by the invention, including oil switching are surveyed
Test-run a machine structure, oily adapter 10, speed changer loading module and control module；The oil switching test mechanism is used for tested speed changer
Transmission oil is provided, and rests on the oil temperature for testing tested speed changer when P/R/N/D is blocked, oil respectively in tested transmission gear
Whether pressure and flow indicator are qualified；Oily adapter 10 connects oily switching test mechanism and tested speed changer, when to speed changer oiling
After injecting ATF oil in hole, transmission oil is successively in oily switching test mechanism, oily adapter 10, tested speed changer internal circulation flow；
Speed changer loading module provides driving and load torque for installing tested speed changer, and to tested speed changer；Control module
It connect with oily switching test mechanism and speed changer loading module, transfers for controlling the load of tested speed changer, and by oil respectively
The data collection system at the end PC is transferred to after pressure, temperature and data on flows progress analog-to-digital conversion that mechanism for testing acquires.
In the present embodiment, oily adapter 10 include test adaptor portion 11 and speed changer interconnecting piece 12, test adaptor portion 11 with
Oily switching test mechanism connection, speed changer interconnecting piece 12 are connect with the hydraulic fluid port of speed changer, and parallel is equipped in test adaptor portion 11
The test oil inlet 111 and test oil export 112 of cloth, interior 121 He of oil inlet mouthpiece for being equipped with parallel arrangement of speed changer interconnecting piece 12
Fuel-displaced mouthpiece 122, test oil inlet 111 are connected to oil inlet mouthpiece 121, and test oil export 112 is connected to fuel-displaced mouthpiece 122.
In the present embodiment, tests oil inlet 111 or test oil export 112 is above oil inlet mouthpiece 121 or fuel-displaced mouthpiece
122。
In the present embodiment, oily switching test mechanism includes oil inlet pipe, oil return line, valve group and sensor group, valve
Group and sensor group are installed on oil inlet pipe or oil return line, and valve group (valve cooler is configured in the present embodiment) specifically may be used
For water injection valve, inlet valve, cooling delivery valve, strainer valve (being configured with ancillary filter device in the present embodiment) and return valve, sensor
Group concretely Cooler out pressure sensor, Cooler in pressure sensor and Cooler temp temperature sensor, with
And flowmeter (mating flow switch is configured in the present embodiment), the erection sequence and installation site of sensor group can be according to demand
Adjustment, this will not be repeated here.
In the present embodiment, the port of oil inlet pipe is equipped with telescopic mouth, which is connected to test oil inlet 111；It is fuel-displaced
The port of pipeline also is provided with telescopic mouth, which is connected to test oil export 112.
In the present embodiment, strainer valve and filter are provided with two groups, and in first group and second group of strainer valve and filtering
Pressure sensor is respectively set on pipeline before and after device, for monitoring the oil pressure under different filter conditions.
In the present embodiment, control module is connect with oily switching test mechanism and speed changer loading module respectively, for adjusting
The operating parameter of oily switching test mechanism and speed changer loading module, and complete the record of tested transmission torque and rotary speed data
And transmission.
In the present embodiment, oil inlet pipe is connected to test oil inlet 111, and test oil inlet 111 is vertical with oil inlet mouthpiece 121
Connection.
In the present embodiment, oil return line is connected to test oil export 112, tests oil export 112 and fuel-displaced mouthpiece 122 is vertical
Connection.
In the present embodiment, oily adapter 10 further includes fixed part 13, and oily adapter 10 passes through fixed part 13 and speed changer phase
Even.
In the present embodiment, fixed part 13 is equipped with an adapter fixation hole 131, and adapter fixation hole 131 is inserted with speed changer
Pin cooperation is speed changer to be fixed on oily adapter 10.
In the present embodiment, processing technology hole 132 is additionally provided with by adapter fixation hole 131, processing technology hole 132 is used for oil inlet
Hole deep processing, convenient for oil inlet oil duct to be connected to inlet nozzle connector.
In the present embodiment, processing technology hole 132 seals interior hexagonal jackscrew 133 equipped with one, seals interior hexagonal jackscrew 133 and is used for
The closure in processing technology hole 132 prevents in test process from this hole oil leak.
In the present embodiment, oil inlet mouthpiece 121 is connect by an inlet nozzle 123 with speed changer oil inlet, and fuel-displaced mouthpiece 122 is logical
An oil outlet 124 is crossed to connect with speed changer oil outlet.
In the present embodiment, sealing is equipped between oil inlet mouthpiece 121 or fuel-displaced mouthpiece 122 and inlet nozzle 123 or oil outlet 124
Circle 125.
In the present embodiment, the one end of inlet nozzle 123 or oil outlet 124 far from oil inlet mouthpiece 121 or fuel-displaced mouthpiece 122 is also set
There are the gasket 126 for preventing damage speed changer hydraulic fluid port and the sealing ring 127 for sealing oil nozzle Yu speed changer hydraulic fluid port gap.
When 6AT speed changer starts to test automatically, sunction Valve (water injection valve) and ATF Oil Return
Valve (return valve) is closed, cooler In valve (valve cooler) and Cooler out valve (cooler delivery valve)
It opens；It opens ATF Oil Supply Valve (inlet valve), ATF oil enters oil inlet pipe from Supply (oil inlet), passes through
Enter again through Cooler in valve (valve cooler) after circulation Flow (flowmeter) progress flow detection tested
Speed changer, ATF oil flow into oil outlet pipe by Cooler out valve (cooler delivery valve) after the outflow of tested speed changer,
Oil outlet pipe respectively leads to ATF Oil Return Valve (return valve) and sensor group；At this point, ATF Oil Return
Valve (return valve) is closed, and Cooler out pressure sensor of the ATF oil stream in oil outlet pipe acquires real-time pressure value, then
First Filter (first filter) 1 ' is arrived by first filter valves (the first strainer valve) 1, or passes through second
Filter valves (the second strainer valve) 2 arrives second Filter (the second filter) 2 ', then flows to Cooler in respectively
Pressure sensor and Cooler temp temperature sensor acquisition real-time pressure and temperature, finally sequentially flow into Flow Switch
(flow switch) and circulation Flow (flowmeter) enters tested become through Cooler In Valve (valve cooler)
Fast device completes primary measured speed changer test oil circulation.
In the present embodiment, oily adapter 10 is mounted on tested speed changer before test (i.e. speed changer interconnecting piece 12 into
Oil nozzle mouth 121 is connected with the oil inlet of speed changer, and the fuel-displaced mouthpiece 122 of speed changer interconnecting piece 12 and the oil outlet of speed changer connect
Connect), tested speed changer is delivered to test station and is attached test, the tested pipeline of oily switching test mechanism turns with oil automatically
(computer control docking, it is flat in movable table to avoid speed changer for the oil inlet mouthpiece 121 for connecing device 10 and the connection of fuel-displaced mouthpiece 122
When shifting with measurement pipeline butting error), specifically: by oil inlet pipe with test oil inlet 111 be connected, test oil inlet 111
It is connected to oil inlet mouthpiece 121, oil inlet mouthpiece 121 is connected to speed changer oil inlet, and ATF oil flows to speed changer from speed changer oil inlet
Oil outlet, speed changer oil outlet are connected to fuel-displaced mouthpiece 122, and fuel-displaced mouthpiece 122 is connect with test oil export 112, and test oil goes out
Mouth 112 connects flowlines.When test, oily switching test mechanism starts to work, and oily switching test mechanism is into tested speed changer
It is passed through ATF oil, the end PC sends a signal to PLC control module, and PLC control module provides the tested change of signal driving shift motor rotation
The gear lever of fast device makes gear lever reach required drive range (P/R/N/D grades), is tested speed change in speed changer test process
Device gear adjusting sequence are as follows: P grades-R grades-D grades-N grades-D grades-R grades-P grades.ATF oil (transmission oil) is fuel-displaced from tested speed changer
The oil outlet that oily adapter mouthful is flowed to by oily adapter oil inlet, subsequently into oily switching test mechanism measurement pipeline (i.e.
Oil inlet pipe) after the oil inlet of oily adapter is flowed into from the oil return line of oily switching test mechanism again, most afterwards through oily adapter
Oil outlet after enter tested speed changer, pass through be mounted on measurement pipeline (i.e. oil outlet pipe) on pressure sensor and flow
Meter acquisition signal carries out pressure and flow detection to the ATF oil for flowing into measurement pipe road.The parameter area of tested every grade of speed changer is:
Whether N grades of flows are in 5.8-15LPM, P grades of 100-500KPA, D grades of pressure of 3-15LPM, D grades of flow flow 5.8-15LPM, N grade
Within the scope of pressure 90-490KAP, flow 3-23.5LPM.After acquiring pressure and data on flows, passed to by analog-to-digital conversion
NI-9073 acquisition system, final test data are stored in the data collection system at the end PC, and the end PC is in data collection system
Data analyze and Realtime Alerts.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (9)
1. a kind of transmission circulating oil automatic transfer measures workbench, which is characterized in that including for testing tested speed changer
The whether qualified oily switching test mechanism of oil temperature, oil pressure and flow indicator, oily adapter (10) and drive is provided to be tested speed changer
The speed changer loading module of torque is moved and loaded, tested speed changer is installed on the speed changer loading module, the oil turns
It connects mechanism for testing and passes through oily adapter (10) to tested speed changer offer transmission oil, the oil adapter (10) includes that test turns
Socket part (11) and speed changer interconnecting piece (12), the test adaptor portion (11) and oily switching test mechanism are in the connection of angle, institute
It states speed changer interconnecting piece (12) to connect with the hydraulic fluid port of speed changer, after injecting ATF oil into speed changer, transmission oil is successively in oil
Switching test mechanism, oily adapter (10), tested speed changer internal circulation flow.
2. transmission circulating oil automatic transfer according to claim 1 measures workbench, which is characterized in that the speed changer
Recycle oil automatic transfer measure workbench further include control module, the control module respectively with oily switching test mechanism and speed change
The connection of device loading module, the control module control the load of tested speed changer, and by the pressure of oily switching test mechanism acquisition,
The data collection system at the end PC is transferred to after temperature and data on flows progress analog-to-digital conversion.
3. transmission circulating oil automatic transfer according to claim 1 measures workbench, which is characterized in that the test turns
Socket part (11) is equipped with test oil inlet (111) and test oil export (112), the test oil inlet (111) or test oil
Outlet (112) is connect with oily switching test mechanism.
4. transmission circulating oil automatic transfer according to claim 3 measures workbench, which is characterized in that the speed changer
An oil inlet mouthpiece (121) and a fuel-displaced mouthpiece (122), the oil inlet mouthpiece (121) or fuel-displaced are respectively equipped in interconnecting piece (12)
Mouthpiece (122) is connect with tested speed changer oil inlet or oil outlet, and the test oil inlet (111) and oil inlet mouthpiece (121) are even
Logical, the test oil export (112) is connected to fuel-displaced mouthpiece (122).
5. transmission circulating oil automatic transfer according to claim 4 measures workbench, which is characterized in that the test oil
The top port of import (111) is higher than oil inlet mouthpiece (121), and the top port of test oil export (112) is higher than oil outlet
Mouth (122).
6. transmission circulating oil automatic transfer according to claim 4 measures workbench, which is characterized in that the oil switching
Device (10) further includes fixed part (13), and the oil adapter (10) is connected by fixed part (13) with speed changer.
7. transmission circulating oil automatic transfer according to claim 3 measures workbench, which is characterized in that the oil switching
Mechanism for testing includes oil inlet pipe, oil return line, valve group and sensor group, and the valve group and sensor group are installed on oil inlet
On pipeline or oil return line, the oil inlet pipe is connected to test oil inlet (111), the oil return line and test oil export
(112) it is connected to.
8. transmission circulating oil automatic transfer according to claim 4 measures workbench, which is characterized in that the inlet nozzle
Sealing ring (125) are equipped between mouth (121) or fuel-displaced mouthpiece (122) and inlet nozzle (123) or oil outlet (124).
9. transmission circulating oil automatic transfer according to claim 8 measures workbench, which is characterized in that the inlet nozzle
(123) or oil outlet (124) is additionally provided with far from one end of oil inlet mouthpiece (121) or fuel-displaced mouthpiece (122) for preventing damage from becoming
The gasket (126) of fast device hydraulic fluid port and sealing ring (127) for sealing oil nozzle Yu speed changer hydraulic fluid port gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513092.8A CN109612636A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070813.2A CN109506839A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
| CN201811513092.8A CN109612636A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811070813.2A Division CN109506839A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109612636A true CN109612636A (en) | 2019-04-12 |
Family
ID=65745761
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811070813.2A Withdrawn CN109506839A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
| CN201811513092.8A Withdrawn CN109612636A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811070813.2A Withdrawn CN109506839A (en) | 2018-09-13 | 2018-09-13 | A kind of transmission circulating oil automatic transfer measurement workbench |
Country Status (1)
| Country | Link |
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| CN (2) | CN109506839A (en) |
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| CN102087165B (en) * | 2009-12-03 | 2012-12-26 | 联合汽车电子有限公司 | System for controlling oil temperature of speed changing box, and using method thereof |
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| CN102777582A (en) * | 2012-08-20 | 2012-11-14 | 中国重汽集团济南动力有限公司 | Cooling system of automatic transmission |
| CN104613166A (en) * | 2015-02-05 | 2015-05-13 | 周玉红 | Oil quantity controller for planetary gear reducer |
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| CN2725872Y (en) * | 2004-07-12 | 2005-09-14 | 天津市天派工业自动化技术有限公司 | Automobile gear box loading detection test bench |
| US20060149441A1 (en) * | 2004-12-21 | 2006-07-06 | Toyota Jidosha Kabushiki Kaisha | Failure detection device and method for oil temperature sensor for automatic transmission |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109506839A (en) | 2019-03-22 |
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Application publication date: 20190412 |