CN110567715A - Low-temperature operation test system and method for transmission - Google Patents
Low-temperature operation test system and method for transmission Download PDFInfo
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- CN110567715A CN110567715A CN201910870332.8A CN201910870332A CN110567715A CN 110567715 A CN110567715 A CN 110567715A CN 201910870332 A CN201910870332 A CN 201910870332A CN 110567715 A CN110567715 A CN 110567715A
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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
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Abstract
the application discloses derailleur low temperature operation test system and method, the system includes: the low-temperature running test device of the transmission and the upper computer connected with the low-temperature running test device are connected with the transmission; the low-temperature operation test device of the transmission comprises a temperature test box, a gear selecting and shifting device and a driving device; the gear selecting and shifting device is arranged on a test transmission, the test transmission is arranged in a temperature test box, and the test transmission is connected with a driving device; the temperature test box, the gear selecting and shifting device and the driving device are directly controlled by the upper computer, so that the test transmission is shifted at a preset temperature, and if the test transmission can be continuously shifted, the test transmission is determined to be qualified. By adopting the system fire method, the speed changer is directly tested, the time for dismounting the speed changer is saved, the speed changer does not need to be conveyed to an extremely low temperature area, the cost is saved, the automation level is high, and the testing efficiency is improved.
Description
Technical Field
The application relates to the technical field of test equipment, in particular to a low-temperature operation test system and method for a transmission.
Background
The transmission is an important component of a mechanical transmission system of a vehicle, and is generally arranged between an engine and wheels of the vehicle. The transmission is connected with an automobile gear shifting device, and different gear pairs inside the transmission alternately work by operating the gear shifting device to realize gear shifting. During the running process of the automobile, the transmission is shifted to generate different speed change ratios between the automobile engine and wheels, so that the automobile is changed in speed, and the automobile engine works in the optimal power performance state.
The operating capability of the transmission is greatly affected by temperature, and when the automobile runs in an extremely low temperature environment, the operating capability of the transmission is also affected. In order to ensure that the transmission can normally operate in a low-temperature environment, the transmission is usually subjected to a low-temperature operation test before the transmission is put into use. In the existing low-temperature running test of the transmission, the transmission is usually installed on an automobile, the whole automobile is tested, during the test, the whole automobile is conveyed to an extremely low-temperature environment for testing, and if the test automobile can continuously and normally shift gears in the extremely low-temperature environment, the test automobile is proved to have normal transmission running capacity and can be put into use.
however, in the research process of the present application, the inventor finds that, in the low-temperature operation test of the transmission, the whole vehicle is relatively complex to assemble and disassemble, a lot of time is consumed, and the whole vehicle needs to be transported to a low-temperature area, so that the low-temperature operation test efficiency of the transmission is low.
disclosure of Invention
The application provides a low-temperature operation test system and method for a transmission, and aims to solve the problems that in the prior art, the transmission is mounted on a whole vehicle for testing, the whole vehicle is complex in disassembly and assembly, a large amount of time is consumed, and the whole vehicle needs to be conveyed to a low-temperature area, so that the low-temperature operation test efficiency of the transmission is low.
In a first aspect, an embodiment of the present application provides a transmission low-temperature operation test system, including: the device comprises a transmission low-temperature operation test device and an upper computer connected with the transmission low-temperature operation test device;
The low-temperature operation test device for the transmission comprises: the system comprises a temperature test box, a temperature control module, a gear selecting and shifting device, a gear selecting and shifting control module, a driving device and a driving device controller;
the test transmission is placed in the temperature test box; the temperature control module is arranged in the temperature test box and used for controlling the temperature in the temperature test box so that the temperature test box provides a low-temperature environment required by testing the transmission;
The driving device is connected with the test transmission and used for providing power for the test transmission; the driving device is connected with a driving device controller, and the driving device controller is used for controlling the driving device;
The gear selecting and shifting device is connected with the test transmission and is used for changing the gear of the test transmission; the gear selecting and shifting device is connected with a gear selecting and shifting control module, and the gear selecting and shifting control module is used for controlling the gear selecting and shifting device so as to enable the test transmission to reach a preset gear;
temperature control module, drive arrangement controller and select shift control module all connect to the host computer, when experimental derailleur test, temperature, power and gear are set to the host computer to send control command to temperature control module, drive arrangement controller and select shift control module, make experimental derailleur shift under the temperature of predetermineeing, if the continuous shift can be realized to experimental derailleur under the temperature of predetermineeing, then the host computer is confirmed experimental derailleur is qualified.
with reference to the first aspect, in one implementation manner, the transmission low-temperature operation testing device further includes: the temperature test box comprises a test platform, a test transmission is fixedly arranged on the test platform, and the temperature test box is movably arranged on the test platform.
with reference to the first aspect, in one implementation, the temperature test chamber employs compressor refrigeration and pressurizer warming.
with reference to the first aspect, in one implementation manner, the transmission low-temperature operation testing device further includes: the data acquisition device is arranged in the temperature test box and connected with an upper computer, and the data acquisition device is used for acquiring relevant parameters of a test transmission and uploading the parameters to the upper computer.
With reference to the first aspect, in one implementation, the transmission cold running test system further includes: the central control module is used for receiving a control instruction of the upper computer and sending the control instruction to the control temperature control module, the gear selecting and shifting control module and the data acquisition device, and the central control module is also used for receiving data transmitted by the control temperature control module, the gear selecting and shifting control module and the data acquisition device and sending the data to the upper computer.
with reference to the first aspect, in one implementation, the driving device is connected to the temperature test chamber through a flange.
in a second aspect, an embodiment of the present application provides a method for testing low-temperature operation of a transmission, where the method is applied to a system for testing low-temperature operation of a transmission according to any one of the implementations of the first aspect, and the method includes:
the upper computer sets temperature, power and gears and sends control instructions to the temperature control module, the driving device controller and the gear selecting and shifting control module;
After the temperature control module receives the control instruction, controlling the temperature test box to reach a preset temperature;
after the driving device controller receives the control command, the driving device provides power for the transmission;
after the gear selecting and shifting control module receives the control instruction, the gear selecting and shifting control module controls the gear selecting and shifting device to shift gears at a preset temperature;
And if the test transmission can realize continuous gear shifting at the preset temperature, the upper computer determines that the test transmission is qualified.
With reference to the second aspect, in one implementation manner, the method further includes: the data acquisition device acquires relevant parameters of the test transmission and uploads the parameters to the upper computer.
With reference to the second aspect, in one implementation manner, the method further includes: the central control module is used for receiving the instruction of the upper computer and sending the instruction to the control temperature control module, the gear selecting and shifting control module and the data acquisition device, or is used for receiving the data transmitted by the control temperature control module, the gear selecting and shifting control module and the data acquisition device and sending the data to the upper computer.
the application discloses derailleur low temperature operation test system and method, the system includes: the low-temperature running test device of the transmission and the upper computer connected with the low-temperature running test device are connected with the transmission; the low-temperature operation test device of the transmission comprises a temperature test box, a gear selecting and shifting device and a driving device; the gear selecting and shifting device is arranged on a test transmission, the test transmission is arranged in a temperature test box, and the test transmission is connected with a driving device; the temperature test box, the gear selecting and shifting device and the driving device are directly controlled by the upper computer, so that the test transmission is shifted at a preset temperature, and if the test transmission can be continuously shifted, the test transmission is determined to be qualified. By adopting the system fire method, the speed changer is directly tested, the time for dismounting the speed changer is saved, the speed changer does not need to be conveyed to an extremely low temperature area, the cost is saved, the automation level is high, and the testing efficiency is improved.
Drawings
in order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a low temperature operation test system for a transmission provided by an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram illustrating a method for testing low temperature operation of a transmission according to an embodiment of the present disclosure.
The method comprises the following steps of 1-a transmission low-temperature operation test device, 10-a test transmission and 11-a temperature test box; 111-temperature acquisition module; 12-a temperature control module, 13-a gear selecting and shifting device, 14-a gear selecting and shifting control module, 15-a driving device, 16-a driving device controller, 17-a test platform and 18-a data acquisition device; 2-an upper computer; and 3-a central control module.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
the application provides a low-temperature operation test system and method for a transmission, and aims to solve the problems that in the prior art, the transmission is mounted on a whole vehicle for testing, the whole vehicle is complex in disassembly and assembly, a large amount of time is consumed, and the whole vehicle needs to be conveyed to a low-temperature area, so that the low-temperature operation test efficiency of the transmission is low.
referring to FIG. 1, a transmission cold running test system is shown, comprising: the device comprises a transmission low-temperature operation test device 1 and an upper computer 2 connected with the transmission low-temperature operation test device 1;
the low-temperature operation test device 1 for the transmission comprises: the system comprises a temperature test box 11, a temperature control module 12, a gear selecting and shifting device 13, a gear selecting and shifting control module 14, a driving device 15 and a driving device controller 16;
The temperature test box 11 is a closed temperature test box 11, and the test transmission 10 is placed in the temperature test box 11; a temperature control module 12 is arranged inside the temperature test box 11, and the temperature control module 12 is used for controlling the temperature inside the temperature test box 11 so that the temperature test box 11 provides a low-temperature environment required by testing the transmission 10;
Preferably, the temperature test chamber 11 adopts a compressor for refrigeration and a pressurizer for temperature rise.
wherein, still be provided with temperature acquisition module 111 in the temperature test case 11, temperature acquisition module 111 connects experimental derailleur 10 and temperature control module 12 and then connects to host computer 2, and host computer 2 and temperature control module 12 can carry out the interaction of data each other, and temperature when temperature control module 12 gathers experimental derailleur 10 operation or starts to upload to host computer 2 to make the inside temperature of host computer 2 real-time recording temperature test case 11.
The temperature test box 11 is a programmable temperature test box 11, the temperature in the temperature test box 11 can be freely set, the temperature working range is from-40 ℃ to 150 ℃, various limit temperature working conditions are met, the programmable temperature test box 11 can be set by an equation, the temperature runs according to a set curve, and various temperature conditions encountered by the whole vehicle are simulated, so that the test range is expanded.
the gear selecting and shifting device 13 is connected with the test transmission 10, and the gear selecting and shifting device 13 is used for changing the gear of the test transmission 10; the gear selecting and shifting device 13 is connected with a gear selecting and shifting control module 14, and the gear selecting and shifting control module 14 is used for controlling the gear selecting and shifting device 13 so as to enable the test transmission 10 to reach a preset gear.
The upper computer 2 and the gear selecting and shifting control module 14 can perform data interaction with each other, the gear selecting and shifting device 13 can drive the test transmission 10 to perform static gear shifting and dynamic gear shifting, and the structure of the gear selecting and shifting device 13 is different according to different test transmissions and has 2 gears, 4 gears and 8 gears; when static gear shifting is achieved, rotating speed is not needed, namely driving is not needed, only the gear shifting device 13 is needed to normally shift gears, whether gear shifting is smooth at low temperature or not can be verified, and gear shifting time is shortened.
The driving device 15 is connected with the test transmission 10, and the driving device 15 is used for providing power for the test transmission 10; the driving device 15 is connected to a driving device controller 16, and the driving device controller 16 is used for controlling the driving device 15.
the test transmission 10 is connected with the driving device 15 through a connecting flange, the driving device 15 is required to drive the output end of the test transmission 10 to drive the test transmission 10 during the test, the driving device 15 provides corresponding power according to the rotating speed required by the test transmission 10, the driving device 15 is controlled by the upper computer 2, and the upper computer 2 and the gear selecting and shifting control module 14 can perform data interaction with each other.
Temperature control module 12, drive arrangement controller 16 and select shift control module 14 and all connect to host computer 2, when experimental derailleur 10 tests, host computer 2 sets for temperature, power and gear to send control command to temperature control module 12, drive arrangement controller 16 and select shift control module 14, make experimental derailleur 10 shift under the temperature of predetermineeing, if experimental derailleur 10 can realize shifting in succession under the temperature of predetermineeing, then host computer 2 confirms experimental derailleur 10 is qualified.
The temperature test box 11, the gear selecting and shifting device 13 and the driving device 15 are controlled by the upper computer 2; specifically, the upper computer 2 is connected to the temperature control module 12, the gear selecting and shifting control module 14 and the driving device controller 16, sets a temperature to send a control instruction to the temperature control module 12, sets power (when needed) to send a control instruction to the driving device controller 16, and sets a gear to send a control instruction to the gear selecting and shifting control module 14, so that the test transmission 10 is shifted according to the set gear at the preset temperature, and if the test transmission 10 can be shifted normally at the preset temperature, the test transmission 10 meets the factory specifications and can be put into use.
Further, the transmission low-temperature operation test device 1 further includes: the testing platform 17 is fixedly installed on the testing platform 17, and the temperature testing box 11 is movably installed on the testing platform 17.
When the transmission low-temperature operation test is carried out, the test transmission 10 is fixedly installed on the test platform 17, the temperature test box 11 can be movably installed on the test platform 17, the temperature test box 11 can be moved to the position of the test transmission 10 on the test platform 17, the position of the test transmission 10 is fixed by the temperature test box 11, the test transmission box is completely covered, the same transmission low-temperature operation test system can be repeatedly used, and a plurality of tests are carried out to test the transmission.
further, the transmission low-temperature operation test device 1 further includes: the temperature test device comprises a data acquisition device 18 arranged in the temperature test box 11, wherein the data acquisition device 18 is connected with the upper computer 2, and the data acquisition device 18 is used for acquiring relevant parameters of the test transmission 10 and uploading the parameters to the upper computer 2.
The data acquisition device 18 may also be disposed on the test transmission 10, as long as the function of the test transmission can be achieved, and the application is not specifically limited, and the relevant parameters of the test transmission include: the temperature of the test transmission 10, the rotating speed of the test transmission 10, the gear selecting and shifting times and other real-time information are acquired by the data acquisition device 18, relevant parameters of the test transmission 10 are acquired and uploaded to the upper computer 2, and therefore working parameters of the test transmission 10 can be better observed.
Further, the transmission low temperature operation test system further comprises: and the central control module 33 is used for connecting the upper computer 2 with the temperature control module 12, the gear selecting and shifting control module 14 and the data acquisition device 18, the central control module 3 is used for receiving a control instruction of the upper computer 2 and sending the control instruction to the temperature control module 12, the gear selecting and shifting control module 14 and the data acquisition device 18, and the central control module 3 is also used for receiving data transmitted by the temperature control module 12, the gear selecting and shifting control module 14 and the data acquisition device 18 and sending the data to the upper computer 2.
wherein, the upper computer 2 realizes controlling the temperature control module 12, selecting and shifting the control module 14 and the data acquisition device 18 through the central control module 3 connected with it, that is to say, the interaction of data can be carried out between the central control module 3 and the temperature control module 12, selecting and shifting the control module 14 and the data acquisition device 18, and the specific interaction process is: the upper computer 2 sends a control instruction to the central control module 3, the central control module 3 receives the control instruction and then respectively sends the control instruction to the temperature control module 12, the gear selecting and shifting control module 14 and the data acquisition device 18, and the temperature control module 12 receives the control instruction and then controls the temperature test box 11 to reach the temperature set by the upper computer 2; after receiving the control instruction, the gear selecting and shifting control module 14 controls the gear selecting and shifting device 13 to meet the gear or gear shifting requirement set by the upper computer 2; after the data acquisition device 18 acquires and receives the control instruction, the relevant parameters of the test transmission 10 are acquired and sent to the central control module 3, the central control module 3 is sent to the upper computer 2, and the upper computer 2 stores data for archiving and querying.
The drive device controller 16 is directly connected to the upper computer 2, and the upper computer 2 directly controls the drive device controller 16 and further controls the drive device 15.
The embodiment of the application discloses a derailleur low temperature operation test system, it is direct to carry out the low temperature operation test to the derailleur through testing the temperature test case, the time of derailleur dismouting has been saved, and need not to transport to extremely low temperature area, save the cost, experimental efficiency has been improved, furthermore, the test system and the method of this application utilize host computer 2 control temperature test case 11, select gearshift 13 and drive arrangement 15, realize the temperature, the control and the regulation of gear and power, can adjust experimental harsh grade, greatly shorten test time, improve experimental automation level.
Referring to fig. 2, a transmission low temperature operation test method is shown, which is applied to the transmission low temperature operation test system of any one of the preceding items, and comprises the following steps:
Step S1, the upper computer 2 sets a temperature, a power and a gear, and sends a control command to the temperature control module 12, the driving device controller 16 and the gear selecting and shifting control module 14;
Step S2, after the temperature control module 12 receives the control instruction, the temperature test chamber 11 is controlled to reach a preset temperature;
Step S3, after the driving device controller 16 receives the control command, the driving device 15 provides power for the transmission;
Step S4, after the gear selecting and shifting control module 14 receives the control command, the gear selecting and shifting control module 14 controls the gear selecting and shifting device 13 to shift gears at a preset temperature;
Step S5, if the test transmission 10 can realize continuous gear shifting at a preset temperature, the upper computer 2 determines that the test transmission 10 is qualified.
Further, the method further comprises: the data acquisition device 18 acquires relevant parameters of the test transmission 10 and uploads the relevant parameters to the upper computer 2.
For a better understanding of the present application, the following sets forth, as an example, specific experimental procedures for testing the transmission 10 in both static and dynamic situations, respectively:
Preparation of the test: the test transmission 10 is filled with lubricating oil as specified;
The testing transmission 10 is installed on a testing platform 17 and connected with a driving device 15 through a connecting flange, a temperature testing box 11 is moved to enable the testing transmission 10 to be sealed in a temperature box test, the measured temperature is set to be 40 ℃ below zero by an upper computer 2, timing is started after the set temperature is reached, the temperature is kept for 12 hours, and a central control module connected with the upper computer 2 collects the ambient temperature in the temperature box and the internal temperature of the transmission in real time;
Static test: after the heat preservation is carried out for 12 hours, the gear selecting and shifting device 13 is controlled by the upper computer 2 to carry out gear shifting test on each gear of the test transmission 10 under the static conditions at-35 ℃, 25 ℃, 15 ℃, 5 ℃ and 0 ℃, the static running-in test is started immediately after the ambient temperature and the oil temperature reach set temperature points (the temperature points can be selected and combined freely), the gear selecting and shifting device 13 is controlled by a gear selecting and shifting control module in a temperature test box 11 to drive the transmission to shift statically, the gear shifting times of each gear are more than 30, the gear shifting time is within the allowed time, the test transmission 10 is required to shift normally, and a data acquisition module acquires the gear position, the gear shifting time and the gear shifting current during gear shifting and uploads the gear position, the gear shifting time and the gear shifting current to the upper computer;
After the static running-in is successful, the upper computer 2 controls the driving device 15 to drive the test transmission 10 to operate according to the set dynamic running-in rotating speed, and dynamic running-in test is carried out;
dynamic test: setting temperature for heat preservation, performing dynamic gear shifting test on the test transmission 10 at-35 ℃, 25 ℃, 15 ℃, 5 ℃ and 0 ℃ in sequence through the gear selecting and shifting device 13, immediately starting the test after the environment temperature and the oil temperature reach a set temperature point (the selection of the temperature point can be freely selected and combined), controlling the gear selecting and shifting device 13 to drive the test transmission 10 to dynamically shift gears through the gear selecting and shifting control module in the temperature test box 11, wherein the gear shifting times of each gear are more than 30, the gear shifting time is within the allowed time, the transmission is required to be capable of shifting gears normally, and the data acquisition module acquires gear positions, gear shifting time and gear shifting current during gear shifting and uploads the gear positions, the gear shifting time and the gear shifting current to the upper computer 2;
after the dynamic gear shifting is successful, the transmission is placed in a normal temperature environment, the gear is shifted through the gear selecting and shifting device 13, the highest gear is shifted, the gear is run for 0.5 hour at the peak rotating speed, gear shifting tests of all gears are carried out according to the transmission test standard, and if the transmission is shifted normally, the transmission 10 of the test is qualified.
The same and similar parts in the various embodiments in this specification may be referred to each other. Particularly, for the method embodiment, because the method embodiment depends on the system to implement the test, the description of the system to which the method is applied is relatively simple, and the relevant points can be referred to the description in the system embodiment.
the present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (8)
1. A transmission cold running test system, comprising: the device comprises a transmission low-temperature operation test device (1) and an upper computer (2) connected with the transmission low-temperature operation test device (1);
The low-temperature operation test device (1) for the transmission comprises: the system comprises a temperature test box (11), a temperature control module (12), a gear selecting and shifting device (13), a gear selecting and shifting control module (14), a driving device (15) and a driving device controller (16);
The test transmission (10) is placed in the temperature test box (11); a temperature control module (12) is arranged inside the temperature test box (11), and the temperature control module (12) is used for controlling the temperature inside the temperature test box (11) so that the temperature test box (11) provides a low-temperature environment required by testing the transmission (10);
The driving device (15) is connected with the test transmission (10), and the driving device (15) is used for providing power for the test transmission (10); the driving device (15) is connected with a driving device controller (16), and the driving device controller (16) is used for controlling the driving device (15);
The gear selecting and shifting device (13) is connected with the test transmission (10), and the gear selecting and shifting device (13) is used for changing the gear of the test transmission (10); the gear selecting and shifting device (13) is connected with a gear selecting and shifting control module (14), and the gear selecting and shifting control module (14) is used for controlling the gear selecting and shifting device (13) so as to enable the test transmission (10) to reach a preset gear;
Temperature control module (12), drive arrangement controller (16) and select shift control module (14) and all connect to host computer (2), when experimental derailleur (10) test, temperature, power and gear are set for in host computer (2) to send control command to temperature control module (12), drive arrangement controller (16) and select shift control module (14), make experimental derailleur (10) shift under the temperature of predetermineeing, if continuous shifting can be realized to experimental derailleur (10) under the temperature of predetermineeing, then host computer (2) are confirmed experimental derailleur (10) is qualified.
2. The system according to claim 1, characterized in that the transmission cold running test device (1) further comprises: the temperature test device comprises a test platform (17), a test speed changer (10) is fixedly arranged on the test platform (17), and a temperature test box (11) is movably arranged on the test platform (17).
3. The system according to claim 1, characterized in that the temperature test chamber (11) uses compressor refrigeration and pressurizer warm-up.
4. The system according to claim 1, characterized in that the transmission cold running test device (1) further comprises: the temperature test device comprises a data acquisition device (18) arranged in the temperature test box (11), wherein the data acquisition device (18) is connected with an upper computer (2), and the data acquisition device (18) is used for acquiring relevant parameters of the test transmission (10) and uploading the relevant parameters to the upper computer (2).
5. the system of claim 4, wherein the transmission cold running test system further comprises: well accuse module (3), well accuse module (3) connect host computer (2) and temperature control module (12), select shift control module (14) and data acquisition device (18), well accuse module (3) are used for receiving the control command of host computer (2) to send to control temperature control module (12), select shift control module (14) and data acquisition device (18), well accuse module (3) still are used for receiving control temperature control module (12), select the data that shift control module (14) and data acquisition device (18) transmitted, and send to host computer (2).
6. The system according to claim 1, characterized in that the drive means (15) are flanged to the temperature test chamber (11).
7. A transmission low-temperature operation test method applied to the transmission low-temperature operation test system according to any one of claims 1 to 6, the method comprising:
the upper computer sets temperature, power and gears and sends control instructions to the temperature control module, the driving device controller and the gear selecting and shifting control module;
after the temperature control module receives the control instruction, controlling the temperature test box to reach a preset temperature;
after the driving device controller receives the control command, the driving device provides power for the transmission;
after the gear selecting and shifting control module receives the control instruction, the gear selecting and shifting control module controls the gear selecting and shifting device to shift gears at a preset temperature;
And if the test transmission can realize continuous gear shifting at the preset temperature, the upper computer determines that the test transmission is qualified.
8. the method of claim 7, further comprising: the data acquisition device acquires relevant parameters of the test transmission and uploads the parameters to the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870332.8A CN110567715A (en) | 2019-09-16 | 2019-09-16 | Low-temperature operation test system and method for transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870332.8A CN110567715A (en) | 2019-09-16 | 2019-09-16 | Low-temperature operation test system and method for transmission |
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| CN110567715A true CN110567715A (en) | 2019-12-13 |
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| CN201910870332.8A Pending CN110567715A (en) | 2019-09-16 | 2019-09-16 | Low-temperature operation test system and method for transmission |
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Application publication date: 20191213 |
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