CN104034527A - AMT (automated mechanical transmission) offline detecting and testing platform and AMT offline detecting method - Google Patents
AMT (automated mechanical transmission) offline detecting and testing platform and AMT offline detecting method Download PDFInfo
- Publication number
- CN104034527A CN104034527A CN201410283580.XA CN201410283580A CN104034527A CN 104034527 A CN104034527 A CN 104034527A CN 201410283580 A CN201410283580 A CN 201410283580A CN 104034527 A CN104034527 A CN 104034527A
- Authority
- CN
- China
- Prior art keywords
- amt
- host computer
- tested
- control module
- clutch coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an AMT (automated mechanical transmission) offline detecting and testing platform and an AMT offline detecting method. The AMT offline detecting and testing platform comprises a clutch and an upper machine, a first fly wheel is arranged at an output end of a power device, a pressing disc of the clutch is fixed on the first fly wheel, a transmission shaft with an output end connected with a transmission input shaft of a tested transmission is arranged on a frictional piece, a separation bearing of the clutch is mounted on the transmission shaft in a matched manner, IO (input/output) ports of the upper machine and a clutch valve of the clutch are connected with an IO port of a control unit of the tested transmission, the IO ports of the upper machine is also connected with a control end of the power device and a control portion of the clutch, and an input port of the upper machine is connected with a feedback portion of the clutch. The AMT offline detecting method includes: 1) testing air impermeability of the tested transmission and connecting a harness port and an air source port; 2) connecting with a power source for initialization; 3) entering a self-studying mode; 4) testing state of electromagnetic valves and sensor signals; 5) testing a power taking switch; 6) generating a test report and ending the test.
Description
Technical field
The present invention relates to the off-line test of variator, be specially a kind of AMT off-line test testing table and detection method thereof.
Background technology
Because electric-controlled mechanical automatic speed transmission (AMT) shifting is automatically to be completed by electric-control system, so existing variator off-line test testing table can not meet the off-line test requirement of electric-controlled mechanical automatic gear-box (AMT), from the AMT off-line test testing table of external import, be expensive on the one hand, cost is too high, cannot adapt to domestic market.When detecting, existing variator off-line test testing table needs manual engage a gear, and the shifting of AMT and the separation of clutch coupling to engage be that control module by AMT completes automatically, so existing variator off-line test testing table can not meet the off-line test requirement of AMT; And the off-line test testing table of external AMT not only price is very expensive, and do not detect the control of clutch coupling.Therefore be necessary very much to develop a AMT off-line test testing table and its corresponding detection method.
Summary of the invention
For problems of the prior art, the invention provides a kind of testing cost low, detection efficiency comprehensive AMT off-line test testing table and detection method thereof.
The present invention is achieved through the following technical solutions:
A kind of AMT off-line test of the present invention testing table comprises propulsion system, clutch coupling and host computer; Propulsion system output terminal is provided with the first flywheel; The platen of clutch coupling is fixed on the first flywheel, is provided with the transmission shaft that output terminal is connected with the speed change input shaft of tested transformer on friction disc, and the release bearing cooperation of clutch coupling is arranged on transmission shaft; The IO port of host computer and the clutch coupling valve of clutch coupling are connected with the IO port of the control module of tested variator respectively; The IO port of host computer is also distinguished the control end of connecting power device and the control assembly of clutch coupling, and the input port of host computer connects the feedback element of clutch coupling.
Preferably, control assembly comprises half grade of valve, shifting solenoid valve, neutral position switch, reverse gear switch, scope shelves valve, power take-off valve, actuator valve and clutch coupling valve; Described feedback element comprises intermediate shaft speed probe, mileometer and OSS.
Further, propulsion system adopt motor, and the motor output shaft of motor is fixedly connected with the first flywheel, and electric machine controller is connected with the IO port of host computer.
Preferably, the present invention also comprises fixed support and for the installation stand of fixing tested variator, fixed support propulsion system and clutch coupling on fixed support are installed; On fixed support and installation stand, be respectively arranged with the spring bearing coordinating with transmission shaft.
Preferably, the first flywheel is identical with the flywheel of the engine output terminal coordinating with tested variator.
Preferably, the output terminal of transmission shaft arranges female spline and is connected with the input shaft of tested variator, and input end is connected with friction disc by spline.
Preferably, the part that transmission shaft is positioned at clutch coupling and tested variator is provided with the second flywheel.
The present invention is a kind of adopt as further described in the AMT off-line test method of AMT off-line test testing table, comprise the steps,
1) test the impermeability of tested variator, extremely maintenance and inspection, carry out oiling and its lifting are fixed on and are installed on stand after normal, connect the wiring harness interface of tested variator, connect the gas source interface of tested variator;
2) switch on power and carry out initialization, host computer sends the EOL pattern of activation instruction active control unit, set up releasing process, if set up releasing process extremely, enter abnormality processing pattern, under abnormality processing pattern, control module feeds back abnormal information to host computer, and re-executes the operation before abnormality processing pattern after checking reason record; If normal, the self-studying mode of active control unit;
3) enter after self-studying mode, control module feeds back correct information and the box of identification to host computer, record each sensor values, if each sensor values extremely, enter abnormality processing pattern, if normal, control module is tested state and the sensor signal of each solenoid valve;
4), when the state of each solenoid valve and sensor signal are tested, if extremely, enter abnormality processing pattern, if normally, control module test power taking switch;
5) during power taking switch testing, if extremely, enter abnormality processing pattern, if normal, the shifting commands sending according to host computer enters gearshift flow process, by control module, be responsible for gearshift synchronous and complete the gearshift of tested variator, by control module, test each sensor and solenoid valve, by host computer, test each switch and mileometer simultaneously;
6) if gearshift flow process extremely, enters abnormality processing pattern, if normally, by host computer, preserve test data, generate test report; Finally tested demounting of the transmission is rolled off the production line, drain the oil, detection of end.
Preferably, with the form of KWP2000 agreement, the form by CAN message sends activation instruction to control module to host computer, with the EOL pattern of active control unit; Host computer sends shifting commands by diagnosing protocol KWP2000 to control module.
Preferably, in abnormality processing pattern, by host computer, read failure code the resolve fault code of control module record, show failure message.
Compared with prior art, the present invention has following useful technique effect:
The present invention utilizes propulsion system that outside power input is provided, by clutch coupling, complete the control to power input, by host computer, the control module of clutch coupling and tested variator is realized to unified control, coordination, has avoided the repetitive process that single test item is tested separately; And when monitoring, not only check variator, also will check clutch coupling, AMT system is checked as a whole, thereby reduced the testing cost to AMT; Simple in structure, reasonable in design, can meet the AMT off-line test requirement of different boxes completely.
Further, by the check of clutch coupling being fused in the check of AMT system; Output terminal at propulsion system is provided with connection clutch coupling the first flywheel, clutch coupling can be installed and control its separated and joint, makes to detect more comprehensively, and meets AMT system actual working state; And state when AMT rolls off the production line is equipped with clutch housing, thus can being fixed on fixed support and installing on stand its simple and fast.
Detection method of the present invention, utilize the testing of the control monitor station in host computer, stable, simple to operate, after AMT rolls off the production line, only need operative employee that AMT is fixed on test board, rat tail plug connector and source of the gas, press Test Switchboard system and just can automatically complete off-line test process according to steering logic; And can generate the test report that comprises test data for each AMT; Can make testing staff recall easily the data that rolls off the production line in detail of every AMT, tracking test.
Further, by the setting based on KWP2000 agreement by AMT off-line test measurement and control program, realize data communication accurate, quick, stable between controller and diagnostic platform, improved the precision of detection efficiency and detection.
Accompanying drawing explanation
Johning knot composition when Fig. 1 is testing table use of the present invention.
Fig. 2 is the enlarged diagram of Fig. 1 medium power device and tested variator junction structure.
Fig. 3 is the steering logic block diagram of the method for the invention.
Fig. 4 is the testing process block diagram of the method for the invention.
In figure: motor 1, electric machine controller 2, motor output shaft 3, spring bearing 4, the first flywheels 5, friction disc 6, platen 7, release bearing 8, clutch coupling 9, fixed support 10, the second flywheels 11, install stand 12, half grade of valve 13, intermediate shaft speed probe 14, shifting solenoid valve 15, neutral position switch 16, reverse gear switch 17, scope shelves valve 18, power take-off valve 19, host computer 20, control module 21, mileometer 22, OSS 23, tested transformer 24, actuator valve 27, speed change input shaft 28, clutch coupling valve 29, transmission shaft 30.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
A kind of AMT off-line test of the present invention testing table, as shown in Figure 1, it comprises propulsion system, clutch coupling 9 and host computer 20; Propulsion system output terminal is provided with the first flywheel 5; The platen 7 of clutch coupling 9 is fixed on the first flywheel 5, is provided with the transmission shaft 30 that output terminal is connected with the speed change input shaft 28 of tested transformer 24 on friction disc 6, and release bearing 8 cooperations of clutch coupling 9 are arranged on transmission shaft 30; The IO port of host computer 20 and the clutch coupling valve 29 of clutch coupling 9 are connected with the IO port of the control module 21 of tested variator 24 respectively; The IO port of host computer 20 is also distinguished the control end of connecting power device and the control assembly of clutch coupling 9, and the input port of host computer 20 connects the feedback element of clutch coupling 9.
Wherein as shown in figures 1 and 3, control assembly comprises half grade of valve 13, shifting solenoid valve 15, neutral position switch 16, reverse gear switch 17, scope shelves valve 18, power take-off valve 19, actuator valve 27 and clutch coupling valve 29; Described feedback element comprises intermediate shaft speed probe 14, mileometer 22 and OSS 23.In this preferred embodiment, propulsion system adopt motor 1, and the motor output shaft 3 of motor 1 is fixedly connected with the first flywheel 5, and electric machine controller 2 is connected with the IO port of host computer 20.
As depicted in figs. 1 and 2, detection platform of the present invention also comprises fixed support 10 and for the installation stand 12 of fixing tested variator 24, fixed support propulsion system and clutch coupling 9 on fixed support 10 are installed; On fixed support 10 and installation stand 12, be respectively arranged with the spring bearing 4 coordinating with transmission shaft 30.The first flywheel 5 is identical with the flywheel of the engine output terminal coordinating with tested variator 24.
As shown in Figure 2, the output terminal of transmission shaft 30 arranges female spline and is connected with the input shaft of tested variator 24, and input end is connected with friction disc 6 by spline; The part that transmission shaft 30 is positioned at clutch coupling 9 and tested variator 24 is provided with the second flywheel 11.
A kind of AMT off-line test method that adopts AMT off-line test testing table as above of the present invention, as shown in Figure 3 and Figure 4, it comprises the steps,
1) test the impermeability of tested variator 24, extremely maintenance and inspection, carry out oiling and its lifting are fixed on and are installed on stand 12 after normal, connect the wiring harness interface 26 of tested variator 24, connect the gas source interface 25 of tested variator 24;
2) switch on power and carry out initialization, host computer 20 sends the EOL pattern of activation instruction active control unit 21, set up releasing process, if set up releasing process extremely, enter abnormality processing pattern, under abnormality processing pattern, control module 21 feeds back abnormal informations to host computer 20, and re-executes the operation before abnormality processing pattern after checking reason record; If normal, the self-studying mode of active control unit 21;
3) enter after self-studying mode, control module 21 feeds back correct information and the box of identification to host computer, record each sensor values, if each sensor values is extremely, enter abnormality processing pattern, if normal, state and the sensor signal of control module 21 each solenoid valves of test;
4), when the state of each solenoid valve and sensor signal are tested, if extremely, enter abnormality processing pattern, if normally, control module 21 test power taking switches 19;
5) when power taking switch 19 is tested, if extremely, enter abnormality processing pattern, if normal, the shifting commands sending according to host computer 20 enters gearshift flow process, by the responsible gearshift of shifting gears synchronously and completing tested variator 24 of control module 21, simultaneously by control module 21 each sensor of test and solenoid valves, by host computer 20 each switch of test and mileometers;
6) if gearshift flow process extremely, enters abnormality processing pattern, if normally, by host computer 20, preserve test data, generate test report; Finally tested variator 24 dismountings are rolled off the production line, drain the oil, detection of end.
Wherein, as shown in Figure 3, with the form of KWP2000 agreement, the form by CAN message sends activation instructions to control module 21 to host computer 20, with the EOL pattern of active control unit 21; Host computer sends shifting commands by diagnosing protocol KWP2000 to control module 21.As shown in Figure 4, in abnormality processing pattern, by host computer 20, read failure code the resolve fault code of control module 21 records, show failure message.
Concrete, AMT off-line test testing table of the present invention is controlled testing process as shown in Figure 3,
A. with the form of KWP2000 agreement, the form by CAN message sends instruction to control module 21 (TCU) to host computer on CAN1, to activate the EOL pattern of TCU, first needs to set up releasing process.
After b.TCU enters EOL pattern, feed back correct information to host computer 20.Host computer sends instruction by diagnosing protocol KWP2000 to TCU, and TCU is responsible for gearshift synchronously and completes the gearshift of AMT.In this process, TCU according to shifting commands, need to control actuator valve 27 (TB valve) and receive to measure after feedback, control half grade of valve 13 and receive its displacement signal feedback, control shifting solenoid valve (XY valve) 15 and receive the feedback of its displacement signal, feedback, the solenoidoperated cluthes valve 29 of range of control shelves valve 18 its displacement signals receive the feedback of its displacement signal, receive intermediate shaft rotating speed that intermediate shaft speed probe 14 measures and output shaft rotating speed that OSS 23 is measured.
C. host computer 20, according to testing process as shown in Figure 4 and the demand of TCU, by method of testing of the present invention, is directly controlled motor 1 and annex and is accepted its feedback, and testing table miscellaneous part;
D. whether host computer 20 directly to measure the switching of reverse gear switch 17 normal;
E. whether host computer 20 directly to measure the switching of neutral switch 16 normal;
F. whether host computer 20 directly to measure the switching of power take-off valve 19 normal;
G. whether host computer 20 directly to measure mileometer 22 output normal;
H. host computer 20 read failure codes resolve fault code, show failure message;
I. host computer 20 is controlled whole off-line test flow process, utilizes method of the present invention, as shown in Figure 4;
J. host computer 20 is preserved test figure and is automatically generated examining report.
Claims (10)
1. an AMT off-line test testing table, is characterized in that, comprises propulsion system, clutch coupling (9) and host computer (20); Described propulsion system output terminal is provided with the first flywheel (5); The platen (7) of described clutch coupling (9) is fixed on the first flywheel (5), on friction disc (6), be provided with the transmission shaft (30) that output terminal is connected with the speed change input shaft (28) of tested transformer (24), release bearing (8) cooperation of clutch coupling (9) is arranged on transmission shaft (30); The clutch coupling valve (29) of the IO port of host computer (20) and clutch coupling (9) is connected with the IO port of the control module (21) of tested variator (24) respectively; The IO port of host computer (20) is also distinguished the control end of connecting power device and the control assembly of clutch coupling (9), and the input port of host computer (20) connects the feedback element of clutch coupling (9).
2. a kind of AMT off-line test testing table according to claim 1, it is characterized in that, described control assembly comprises half grade of valve (13), shifting solenoid valve (15), neutral position switch (16), reverse gear switch (17), scope shelves valve (18), power take-off valve (19), actuator valve (27) and clutch coupling valve (29); Described feedback element comprises intermediate shaft speed probe (14), mileometer (22) and OSS (23).
3. a kind of AMT off-line test testing table according to claim 2, it is characterized in that, described propulsion system adopt motor (1), the motor output shaft (3) of motor (1) is fixedly connected with the first flywheel (5), and electric machine controller (2) is connected with the IO port of host computer (20).
4. a kind of AMT off-line test testing table according to claim 1, it is characterized in that, also comprise fixed support (10) and for the installation stand (12) of fixing tested variator (24) is installed, the upper fixed support propulsion system of fixed support (10) and clutch coupling (9); On fixed support (10) and installation stand (12), be respectively arranged with the spring bearing (4) coordinating with transmission shaft (30).
5. a kind of AMT off-line test testing table according to claim 1, is characterized in that, described the first flywheel (5) is identical with the flywheel of the engine output terminal coordinating with tested variator (24).
6. a kind of AMT off-line test testing table according to claim 1, it is characterized in that, the output terminal of described transmission shaft (30) arranges female spline and is connected with the input shaft of tested variator (24), and input end is connected with friction disc (6) by spline.
7. according to a kind of AMT off-line test testing table of claim 1 or 6, it is characterized in that, the part that transmission shaft (30) is positioned at clutch coupling (9) and tested variator (24) is provided with the second flywheel (11).
8. adopt an AMT off-line test method for AMT off-line test testing table as claimed in claim 3, it is characterized in that, comprise the steps,
1) test the impermeability of tested variator (24), extremely maintenance and inspection, after normal, carry out oiling and its lifting is fixed on and is installed on stand (12), the wiring harness interface (26) that connects tested variator (24), connects the gas source interface (25) of tested variator (24);
2) switch on power and carry out initialization, host computer (20) sends the EOL pattern of activation instruction active control unit (21), set up releasing process, if set up releasing process extremely, enter abnormality processing pattern, control module under abnormality processing pattern (21) feeds back abnormal information to host computer (20), and re-executes the operation before abnormality processing pattern after checking reason record; If normally, the self-studying mode of active control unit (21);
3) enter after self-studying mode, control module (21) feeds back correct information and the box of identification to host computer, record each sensor values, if each sensor values is extremely, enter abnormality processing pattern, if normally, control module (21) is tested state and the sensor signal of each solenoid valve;
4), when the state of each solenoid valve and sensor signal are tested, if extremely, enter abnormality processing pattern, if normally, control module (21) test power taking switch (19);
5) when power taking switch (19) is tested, if extremely, enter abnormality processing pattern, if the shifting commands normally, sending according to host computer (20) enters gearshift flow process, by control module (21), be responsible for gearshift synchronously and complete the gearshift of tested variator (24), by control module (21), test each sensor and solenoid valve, by host computer (20), test each switch and mileometer simultaneously;
6) if gearshift flow process extremely, enters abnormality processing pattern, if normally, by host computer (20), preserve test data, generate test report; Finally tested variator (24) dismounting is rolled off the production line, drain the oil, detection of end.
9. a kind of AMT off-line test method according to claim 8, it is characterized in that, with the form of KWP2000 agreement, the form by CAN message sends activation instruction to control module (21) to host computer (20), with the EOL pattern of active control unit (21); Host computer sends shifting commands by diagnosing protocol KWP2000 to control module (21).
10. a kind of AMT off-line test method according to claim 8, is characterized in that, in abnormality processing pattern, is read failure code the resolve fault code of control module (21) record by host computer (20), shows failure message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283580.XA CN104034527B (en) | 2014-06-23 | 2014-06-23 | A kind of AMT off-line test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410283580.XA CN104034527B (en) | 2014-06-23 | 2014-06-23 | A kind of AMT off-line test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104034527A true CN104034527A (en) | 2014-09-10 |
| CN104034527B CN104034527B (en) | 2016-08-24 |
Family
ID=51465384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410283580.XA Active CN104034527B (en) | 2014-06-23 | 2014-06-23 | A kind of AMT off-line test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104034527B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107066260A (en) * | 2017-03-08 | 2017-08-18 | 广州市富元电子有限公司 | A kind of open automatic gear-box testing process control engine |
| CN115432389A (en) * | 2022-09-22 | 2022-12-06 | 陕西法士特齿轮有限责任公司 | Transmission test line roller way conveying system and method |
| CN115903759A (en) * | 2023-01-30 | 2023-04-04 | 陕西法士特齿轮有限责任公司 | Function detection device and method for transmission controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326131A (en) * | 1998-05-21 | 1999-11-26 | Aisin Aw Co Ltd | Automatic transmission testing device |
| CN201060098Y (en) * | 2007-04-19 | 2008-05-14 | 合肥工业大学 | Electric control automatic mechanical speed variator automatic upshift experimental bench |
| CN102305713A (en) * | 2011-05-24 | 2012-01-04 | 重庆和平自动化工程有限公司 | Online test device for automated mechanical transmission (AMT) |
| KR101231368B1 (en) * | 2007-12-06 | 2013-02-07 | 메이덴샤 코포레이션 | Testing device for automatic transmission |
| CN203629827U (en) * | 2013-12-17 | 2014-06-04 | 陕西法士特齿轮有限责任公司 | Integration experiment system for automatic transmission |
| CN203949783U (en) * | 2014-06-23 | 2014-11-19 | 陕西法士特齿轮有限责任公司 | A kind of AMT off-line test testing table |
-
2014
- 2014-06-23 CN CN201410283580.XA patent/CN104034527B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326131A (en) * | 1998-05-21 | 1999-11-26 | Aisin Aw Co Ltd | Automatic transmission testing device |
| CN201060098Y (en) * | 2007-04-19 | 2008-05-14 | 合肥工业大学 | Electric control automatic mechanical speed variator automatic upshift experimental bench |
| KR101231368B1 (en) * | 2007-12-06 | 2013-02-07 | 메이덴샤 코포레이션 | Testing device for automatic transmission |
| CN102305713A (en) * | 2011-05-24 | 2012-01-04 | 重庆和平自动化工程有限公司 | Online test device for automated mechanical transmission (AMT) |
| CN203629827U (en) * | 2013-12-17 | 2014-06-04 | 陕西法士特齿轮有限责任公司 | Integration experiment system for automatic transmission |
| CN203949783U (en) * | 2014-06-23 | 2014-11-19 | 陕西法士特齿轮有限责任公司 | A kind of AMT off-line test testing table |
Non-Patent Citations (2)
| Title |
|---|
| 张志伟 等: "基于LabVIEW的AMT下线检测试验***", 《湖北汽车工业学院学报》, vol. 25, no. 3, 15 September 2011 (2011-09-15) * |
| 李福文 等: "AMT下线检测试验台设计及测控软件开发", 《重型汽车》, no. 52010, 15 October 2010 (2010-10-15) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107066260A (en) * | 2017-03-08 | 2017-08-18 | 广州市富元电子有限公司 | A kind of open automatic gear-box testing process control engine |
| CN107066260B (en) * | 2017-03-08 | 2020-06-19 | 广州市富元电子有限公司 | Open type automatic gearbox test flow control engine |
| CN115432389A (en) * | 2022-09-22 | 2022-12-06 | 陕西法士特齿轮有限责任公司 | Transmission test line roller way conveying system and method |
| CN115903759A (en) * | 2023-01-30 | 2023-04-04 | 陕西法士特齿轮有限责任公司 | Function detection device and method for transmission controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034527B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207570803U (en) | Electric vehicle AMT power assemblies gearshift pilot system | |
| CN203011689U (en) | Hydraulic automatic transmission test-bed diagnosis system | |
| CN104214329A (en) | Virtual diagnosis system and method for automatic transmission | |
| CN104034527A (en) | AMT (automated mechanical transmission) offline detecting and testing platform and AMT offline detecting method | |
| CN101739022A (en) | Performance test system and method for control unit of engine | |
| CN103543009A (en) | Gearbox test bed | |
| CN101819094A (en) | Comprehensive test bench for electronic parking brake system | |
| CN111350859A (en) | Device and method for detecting state of electric regulating valve | |
| CN204439348U (en) | A kind of wheel box test-bed based on Multi-information acquisition | |
| CN109443561A (en) | A kind of Diagnostic system of motor fault and its diagnostic method based on temperature signal analysis | |
| CN201043933Y (en) | Testing apparatus of vehicle automatic speed transmission | |
| CN103885380A (en) | Measurement and control system for comprehensive test bed of tractor clutch assembly | |
| CN203949783U (en) | A kind of AMT off-line test testing table | |
| CN201867303U (en) | Comprehensive test bench for electronic parking brake system | |
| CN102706384A (en) | Detection device of accelerator position sensor | |
| CN113008553B (en) | Impact endurance test device for new energy reducer | |
| CN102520293B (en) | Production test method for force-variable electromagnetic valve of automatic transmission | |
| CN112557031A (en) | System and method for dynamically testing AMT gear shifting actuating mechanism of automatic mechanical transmission | |
| CN210513214U (en) | Intelligent probe test module | |
| CN109655101A (en) | A kind of torque rotary speed intelligent observing and controlling system and test method | |
| CN109708873A (en) | The test method and device of clutch moment of torque transmission characteristic in transmission assembly | |
| CN211826349U (en) | A test platform for TYJL-III computer interlocking system | |
| CN104786544A (en) | Remote monitoring system for press machine | |
| CN203719893U (en) | Automotive transmission control valve body inspection device | |
| CN209513060U (en) | A kind of Diagnostic system of motor fault based on temperature signal analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |