CN113702028A - Real and virtual combined full-automatic gearbox testing system and method - Google Patents
Real and virtual combined full-automatic gearbox testing system and method Download PDFInfo
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- CN113702028A CN113702028A CN202110793638.5A CN202110793638A CN113702028A CN 113702028 A CN113702028 A CN 113702028A CN 202110793638 A CN202110793638 A CN 202110793638A CN 113702028 A CN113702028 A CN 113702028A
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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
Abstract
The invention discloses a real and virtual combined full-automatic gearbox testing system and a method, which comprises the following steps: real test subassembly and virtual control subassembly, the virtual control subassembly includes main control computer, main control board and CAN transceiver, real test subassembly includes gearbox assembly, motor and converter, the main control board is connected in order to send the virtual operating mode information of putting in order to put in order to send the whole car work through CAN transceiver and gearbox assembly, the main control computer is connected in order to gather the real-time operating data of gearbox assembly through CAN transceiver and gearbox assembly, carries out the contrast of operating mode information and real-time operating data. Through the mode, the real and virtual combined full-automatic gearbox testing system and method provided by the invention have the advantages that the real testing component and the virtual control component are combined, the authenticity of the gearbox testing process and the accuracy of results are improved, the structure is simple, the testing operation is simple and convenient, and the testing cost and the skill requirement on operators are reduced.
Description
Technical Field
The invention relates to the technical field of gearbox testing, in particular to a real and virtual combined full-automatic gearbox testing system and method.
Background
With the rapid popularization of the concept of green development in the countries in recent years, automobile remanufacturing technology and career have been greatly developed, wherein the automatic transmission is used as a core component of an automobile and has an important proportion in the automobile remanufacturing career.
When automatic transmission refabrication, need test, traditional automobile automatic transmission tests generally go on through following two kinds of modes:
firstly, an automatic gearbox is installed on a whole vehicle, programming learning is carried out, then the real vehicle normally runs, a diagnosis device is used for reading a corresponding fault code, and troubleshooting and maintenance are carried out according to the fault code, the mode is complex in test and installation, a professional installation and maintenance technician is required to carry out fault judgment, the efficiency is low, engine oil needs to be replaced and gasoline needs to be added in the process of testing by using the real vehicle, the cost is high, a driver needs to master driving steps of various tests, and partial steps are easy to omit to cause incompleteness of the test;
the second kind, disassemble the back with the module about automatic transmission work in whole car, use the pencil to connect, and use the motor to replace the engine to drag the gearbox, use diagnostic equipment to read each module fault code, carry out artifical judgement, this mode is equivalent to the simplified version of real car, it is simpler for real car installation, the cost is lower, but bulky, and need comparatively professional talent to judge, the test procedure operating mode is too simple, the result can not represent the gearbox true condition completely, still be the most ideal test mode, need improve.
Disclosure of Invention
The invention mainly solves the technical problem of providing a real and virtual combined full-automatic gearbox testing system and method, realizing automatic testing of an automatic gearbox, and improving the simplicity and structural accuracy of the testing.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a full-automatic gearbox test system that real virtual combines, includes: true test subassembly and virtual control subassembly, the virtual control subassembly includes main control computer, main control board and CAN transceiver, the true test subassembly includes gearbox assembly, motor and converter, the motor is connected with the operation of drive gearbox with gearbox assembly rigid, the converter is connected with the motor and carries out motor speed control, the main control board is connected with the converter and carries out the transmission of rotation order, the main control board is connected with the gearbox assembly through the CAN transceiver in order to send the virtual operating mode information of putting in order the car work, the main control computer is connected with the gearbox assembly through the CAN transceiver in order to gather the real-time working data of gearbox assembly, the main control computer is connected with the main control board, carries out the contrast of operating mode information and real-time working data.
In a preferred embodiment of the present invention, the main control board is an embedded main control board.
In a preferred embodiment of the present invention, the motor is a dc motor.
In a preferred embodiment of the invention, the operating condition information includes engine speed, engine water temperature, an accelerator pedal position sensor signal, a brake pedal position sensor signal, an ESP signal, a cruise control signal, a shift signal, and a fault code.
In order to solve the technical problem, the invention adopts another technical scheme that: the method for testing the real and virtual combined full-automatic gearbox comprises the following steps:
connecting a motor with a gearbox assembly so as to drive the gearbox through the motor;
according to the version information of the gearbox, working condition information of the whole vehicle is virtualized by a main control board, the working condition information is transmitted to a gearbox assembly through a CAN transceiver, and then the gears of the gearbox are adjusted through an embedded main control board to be switched among a plurality of gears;
sending a control signal to a frequency converter through an embedded main control board, controlling the rotating speed of a motor by using the frequency converter, dragging a flywheel disc of a gearbox assembly to rotate, and performing upshifting or downshifting operation according to the working condition information of the whole vehicle virtually input by the embedded main control board;
the main control computer collects data flow returned by the gearbox assembly through the CAN transceiver, compares the data flow with working condition information and the rotating speed of the motor, judges the working state of each module of the gearbox, actively analyzes the working state of the gearbox, and outputs a test result after a fault is detected.
In a preferred embodiment of the present invention, the plurality of gears include a P gear, an R gear, a D gear, and an N gear.
In a preferred embodiment of the invention, the gearbox modules comprise a pressure module, a temperature module and a gear module.
The invention has the beneficial effects that: according to the real and virtual combined full-automatic gearbox testing system and method, the real testing component and the virtual control component are combined, so that the authenticity of the gearbox testing process and the accuracy of results are improved, the structure is simple, the testing operation is simple and convenient, the testing cost and the skill requirement of operators are reduced, and the remanufacturing of the automatic gearbox is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of a preferred embodiment of a real-virtual combined fully automatic transmission test system according to the present invention;
FIG. 2 is a flow chart of a real and virtual combined fully automatic gearbox testing method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 2, an embodiment of the present invention includes:
the real and virtual combined full-automatic gearbox testing system as shown in figure 1 is constructed, and comprises: the real testing component comprises a gearbox assembly, a motor and a frequency converter, the motor is in rigid connection with the gearbox assembly to drive the gearbox to run, the frequency converter is connected with the motor to control the rotating speed of the motor, in the embodiment, the motor adopts a direct current motor to replace a traditional internal combustion engine, the torque and the rotating speed required by the running of the gearbox are provided, and the real testing component is small in size and low in cost.
The virtual control assembly comprises a main control computer, a main control board and a CAN transceiver, the main control board is connected with the frequency converter to send a rotating command, and the transmission assembly is driven by the motor.
The main control board is connected with the gearbox assembly through the CAN transceiver to send virtual working condition information of the whole vehicle, in the embodiment, the working condition information comprises engine rotating speed, engine water temperature, an accelerator pedal position sensor signal, a brake pedal position sensor signal, an ESP signal, a cruise control signal, a gear shifting signal and fault codes, and the working condition information CAN be increased or decreased correspondingly due to different types of automatic gearboxes.
The main control computer is connected with the gearbox assembly through the CAN transceiver to collect real-time working data of the gearbox assembly, the main control computer is connected with the main control board to compare working condition information with the real-time working data, and whether all modules, the gear shifting mechanism and the like of the gearbox work normally or not is judged to obtain a test result.
A real and virtual combined full-automatic gearbox testing method comprises the following steps:
connecting a motor with a gearbox assembly so as to drive the gearbox through the motor;
according to version information of the gearbox, working condition information of the whole vehicle is virtualized by a main control board, the working condition information is transmitted to a gearbox assembly through a CAN transceiver, and then gears of the gearbox are adjusted through an embedded main control board to be switched among a plurality of gears, wherein the plurality of gears comprise a P gear, an R gear, a D gear and an N gear;
sending a control signal to a frequency converter through an embedded main control board, controlling the rotating speed of a motor by using the frequency converter, dragging a flywheel disc of a gearbox assembly to rotate, and performing upshifting or downshifting operation according to the working condition information of the whole vehicle virtually input by the embedded main control board;
the main control computer passes through the data stream that CAN transceiver gathered the gearbox assembly passback, compares with the rotational speed of operating mode information and motor, judges the operating condition of each module of gearbox, and each module of gearbox includes pressure module, temperature module and gear module, and the operating condition of analyzing out the gearbox initiatively tests out the output test result after breaking down.
Example (b):
taking the working principle of the popular DQ200 automatic gearbox as an example:
the DQ200 automatic gearbox mainly consists of three parts: dual clutch module, gearbox and electromechanical control unit module, wherein:
the double-clutch module comprises two sets of clutches, namely a K1 clutch close to the engine and a K2 clutch at the other end, wherein the two sets of clutches K1 and K2 are provided with independent driven parts, pressing mechanisms and operating mechanisms;
a gear box: after power enters the gearbox body through the input shaft, transmission among the gear sets is started, when the transmission operates, one gear set is meshed, when gear shifting is approached, the next gear set is preselected, but the clutch is still in a separation state, and the whole process ensures that at least one gear set outputs power, so that transmission interruption is not caused.
An electromechanical control unit module: it is mainly composed of two parts, namely a gearbox control computer and a valve body. Wherein the valve body includes: the hydraulic pump, the oil circuit board, the 8-way electromagnetic valve and the 2-way clutch lever; the gearbox control computer comprises: the system comprises a one-way temperature sensor, a one-way oil pressure sensor, two-way clutch sensors, three-way rotating speed sensors and four-way gear sensors.
As can be seen from the above working principle of the automatic transmission, the conditions required for fully testing the automatic transmission to operate in various states are as follows: the power control of the input shaft and the signal control of the work of the electromechanical control unit.
Therefore, the frequency converter of the direct current motor is controlled by the embedded main control board, the purpose of controlling the power of the input shaft is achieved, control signals are input through the embedded main control board according to the analyzed data of the whole vehicle, the gearbox works in different states, all data streams of the gearbox during working are collected by the CAN transceiver and are compared and analyzed, and the purpose of detecting all the gearboxes is achieved.
As shown in fig. 2, after the main control computer is started, the test is started, the voltage of the transmission is detected first, the version information of the transmission is read if the transmission is normal, the configuration parameters are loaded, the historical fault codes are read and cleared, if the fault occurs, the test fails, abnormal information is output, and if the fault does not occur, the power supply of the transmission is restarted;
the embedded main control board is used for sending information such as the rotating speed of an engine, the position of a brake pedal and the like required by the work of the gearbox, the motor drives the gearbox to run, a CAN signal returned by the main control machine through a gearbox assembly computer is compared with a signal sent by the embedded main control board, if the information is consistent, the detection is passed, if the information is inconsistent, the detection is not passed, and abnormal information is output.
In conclusion, the real and virtual combined full-automatic gearbox testing system and method disclosed by the invention realize automatic testing of the automatic gearbox by adopting a real and virtual combined mode, improve the accuracy of a testing structure and reduce the testing cost.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a full-automatic gearbox test system that real virtual combines which characterized in that includes: true test subassembly and virtual control subassembly, the virtual control subassembly includes main control computer, main control board and CAN transceiver, the true test subassembly includes gearbox assembly, motor and converter, the motor is connected with the operation of drive gearbox with gearbox assembly rigid, the converter is connected with the motor and carries out motor speed control, the main control board is connected with the converter and carries out the transmission of rotation order, the main control board is connected with the gearbox assembly through the CAN transceiver in order to send the virtual operating mode information of putting in order the car work, the main control computer is connected with the gearbox assembly through the CAN transceiver in order to gather the real-time working data of gearbox assembly, the main control computer is connected with the main control board, carries out the contrast of operating mode information and real-time working data.
2. The real and virtual combined fully automatic gearbox testing system according to claim 1, characterized in that said master control board is an embedded master control board.
3. The fully automatic gearbox testing system of claim 1, wherein said motor is a dc motor.
4. The fully automatic transmission testing system of real and virtual integration according to claim 1, wherein the operating condition information includes engine speed, engine water temperature, accelerator pedal position sensor signal, brake pedal position sensor signal, ESP signal, cruise control signal, shift signal, and fault code.
5. A real and virtual combined full-automatic gearbox testing method is characterized by comprising the following steps:
connecting a motor with a gearbox assembly so as to drive the gearbox through the motor;
according to the version information of the gearbox, working condition information of the whole vehicle is virtualized by a main control board, the working condition information is transmitted to a gearbox assembly through a CAN transceiver, and then the gears of the gearbox are adjusted through an embedded main control board to be switched among a plurality of gears;
sending a control signal to a frequency converter through an embedded main control board, controlling the rotating speed of a motor by using the frequency converter, dragging a flywheel disc of a gearbox assembly to rotate, and performing upshifting or downshifting operation according to the working condition information of the whole vehicle virtually input by the embedded main control board;
the main control computer collects data flow returned by the gearbox assembly through the CAN transceiver, compares the data flow with working condition information and the rotating speed of the motor, judges the working state of each module of the gearbox, actively analyzes the working state of the gearbox, and outputs a test result after a fault is detected.
6. The fully automatic gearbox testing method of real-virtual binding of claim 5, wherein said plurality of gears comprises P gear, R gear, D gear and N gear.
7. The method of claim 5, wherein the gearbox modules include a pressure module, a temperature module, and a gear module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793638.5A CN113702028B (en) | 2021-07-14 | Real and virtual combined full-automatic gearbox testing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793638.5A CN113702028B (en) | 2021-07-14 | Real and virtual combined full-automatic gearbox testing system and method |
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| Publication Number | Publication Date |
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| CN113702028A true CN113702028A (en) | 2021-11-26 |
| CN113702028B CN113702028B (en) | 2024-05-10 |
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