CN110879147A - Transmission testing system, method and storage medium - Google Patents
Transmission testing system, method and storage medium Download PDFInfo
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- CN110879147A CN110879147A CN201911167382.6A CN201911167382A CN110879147A CN 110879147 A CN110879147 A CN 110879147A CN 201911167382 A CN201911167382 A CN 201911167382A CN 110879147 A CN110879147 A CN 110879147A
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- 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
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Abstract
The invention discloses a transmission testing system, a transmission testing method and a storage medium. The system, comprising: the device comprises a sensor module, a communication module, a transmission control module, a transmission module, a motor control module and a test control module, wherein the sensor module is used for detecting the state information of the motor; the transmission control module is used for controlling the transmission module according to the transmission control instruction and receiving the state information so as to judge whether the running state of the motor meets the requirement or not; the motor control module is used for controlling the running state of the motor according to the motor control instruction; the test control module is used for generating a motor control instruction according to a preset control condition, generating a transmission control instruction according to the preset control instruction, and receiving transmission parameters so as to generate a test result of the transmission according to the transmission parameters. According to the technical scheme of the embodiment of the invention, the motor and the transmission are controlled in a combined manner, so that the transmission can be tested finely.
Description
Technical Field
The embodiment of the invention relates to the technical field of transmission testing, in particular to a transmission testing system, a transmission testing method and a storage medium.
Background
With the rapid development of automotive technology, consumer expectations for automotive products are gradually transitioning from the aspect of excellent functional performance. Increasingly intense market competition urges automobile manufacturers to refine the quality of automobile products, and for automobile transmissions, a large amount of complex bench test work is required during product development.
At present, bench test equipment widely applied to automobile manufacturers can meet the conventional test requirements for setting parameters such as rotating speed and torque, but in the face of refined test items such as friction coefficient tests and lubricating flow tests, the bench test equipment in the current market cannot be in deep communication with a transmission, the refined test items cannot be automatically tested, and the bench test equipment and the automatic transmission can only be adjusted by manpower to test the parameters respectively so as to complete the test items. The testing steps are complicated and the workload is large.
Disclosure of Invention
The invention provides a transmission testing system, a transmission testing method and a storage medium, which are used for realizing automatic testing of a fine testing project of a transmission.
In a first aspect, an embodiment of the present invention provides a transmission testing system, which includes a sensor module, a communication module, a transmission control module, a transmission module, a motor control module, and a test control module, where the sensor module is configured to detect state information of a motor of the motor module; the communication module is used for sending the output of the sensor module to the transmission control module; the transmission control module is used for receiving a transmission control instruction of the test control module, controlling the transmission module according to the transmission control instruction, and receiving state information output by the sensor module to judge whether the running state of the motor meets the requirement; the motor control module is used for receiving a motor control instruction of the test control module and controlling the running state of the motor according to the motor control instruction; the test control module is used for receiving preset control conditions and preset control instructions, generating motor control instructions according to the preset control conditions, generating transmission control instructions according to the preset control instructions, and receiving transmission parameters output by the transmission module so as to generate a test result of the transmission according to the transmission parameters.
In a second aspect, embodiments of the present invention also provide a transmission testing method, including: generating a motor control instruction according to a preset control condition through a test control module, and generating a transmission control instruction according to the preset control instruction; detecting state information of the motor via the sensor module; controlling the running state of the motor module according to the motor control instruction through the motor control module; judging whether the running state of the motor module meets the requirement or not according to the state information by a transmission control module; if yes, controlling a transmission module through a transmission control module according to the transmission control command to obtain a transmission parameter of the transmission; generating, via a test control module, a test result of the transmission as a function of the transmission parameter output by the transmission module.
In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions for performing the transmission testing method provided by any of the embodiments of the present invention when executed by a computer processor.
According to the technical scheme of the embodiment of the invention, the state of the motor is detected by arranging the sensor to form feedback, so that the state of the motor is ensured to meet the requirement; the state of the transmission is controlled by the test control module according to the preset instruction, and the state of the motor is controlled by the motor control module, so that the joint control of the motor and the transmission is realized, the transmission can be tested under the set working condition, the test precision and the test applicability are improved, and the automatic test of the fine test items of the transmission is realized.
Drawings
FIG. 1 is a schematic structural diagram of a transmission testing system according to a first embodiment of the invention;
FIG. 2 is a schematic structural diagram of a transmission testing system according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a transmission testing method in a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of a transmission testing system according to an embodiment of the present invention, and as shown in fig. 1, the transmission testing system according to the embodiment of the present invention includes a sensor module 110, a communication module 120, a transmission control module 130, a transmission module 140, a motor module 150, a motor control module 160, and a test control module 170.
The sensor module 110 is configured to detect state information of a motor of the motor module 150; the communication module 120 is used to send the output of the sensor module 110 to the transmission control module 130; the transmission control module 130 is configured to receive a transmission control instruction of the test control module 170, control the transmission module 140 according to the transmission control instruction, and receive state information output by the sensor module 110 to determine whether the operating state of the motor meets a requirement; the motor control module 160 is used for receiving a motor control instruction of the test control module and controlling the running state of the motor according to the motor control instruction; the test control module is used for receiving preset control conditions and preset control instructions, generating motor control instructions according to the preset control conditions, generating transmission control instructions according to the preset control instructions, and receiving transmission parameters output by the transmission module so as to generate a test result of the transmission according to the transmission parameters.
Optionally, the sensor module 110 includes a motor temperature sensor for detecting the temperature of the motor bearing seat; the motor rotating speed sensor is used for detecting the rotating speed of the motor; and the motor torque sensor is used for detecting the torque of the motor.
Specifically, the communication module 120 may be a Controller Area Network (CAN) communication module, and is mainly configured to perform data communication based on a CAN bus and a CAN Calibration Protocol (CCP). The application protocol CCP is a calibration protocol of an ECU (Electronic Control Unit) based on a CAN bus.
Specifically, the sensor module 110 transmits the detected rotation speed, torque and temperature of the motor bearing seat to the transmission control module 130 through the communication module 120, so that the transmission control module 130 determines whether the states of the motors of the motor module 150 reach the set states.
Optionally, the motor module 150 includes a driving motor and at least one load motor, wherein the driving motor is communicatively connected to the transmission for providing driving power to the transmission; the load motor is in communication connection with the transmission and is used for providing a load for the transmission.
Specifically, the motor control module 160 is mainly used for controlling the rotation speed or torque of the motor according to the motor control instruction of the test control module 170, so that the motor reaches a preset state.
Optionally, the motor control module 160 includes: the single-step control instruction generating unit is used for generating each single-step control instruction for controlling the single-step operation of the motor according to the motor control instruction; the continuous control instruction generating unit is used for generating a continuous control instruction for controlling the motor to continuously run according to the motor control instruction; and the operation log unit is used for recording the log of the motor operation.
Further, the single-step control instruction generation unit, the continuous control instruction generation unit and the running log unit can be written based on a Python snap7 communication library. The motor control module 160 may further include an overrun warning unit for warning when the relevant parameter exceeds an upper limit during the operation of the motor.
Specifically, the transmission module 140 is the target to be tested. Optionally, the transmission module 140 includes a clutch, a transmission, and a differential.
Specifically, the clutch is positioned in a flywheel housing between the engine and the transmission, an output shaft of the clutch is an input shaft of the transmission, and a driver presses or releases a pedal of the clutch to temporarily separate and gradually combine the engine and the transmission so as to cut off or transmit power input from the engine to the transmission during the running process of the automobile.
Optionally, the transmission parameters include a fork position signal, a transmission oil temperature, a transmission output speed, a clutch input speed, a clutch pressure, a clutch output speed, and the like.
The preset control condition refers to a preset working condition and mainly relates to information such as the rotating speed, the torque or the temperature of the driving motor, and the preset control instruction refers to a control instruction of the transmission module 140, such as a transmission gear shifting instruction, a clutch combination instruction or a clutch separation instruction.
For example, taking the friction coefficient of the clutch of the transmission module as an example, the set working condition (the preset control condition) is that the rotating speed of the input motor is between 0 and t1Increasing the temperature from 0 to 1000r/min in the time period and at t2～t3Then the speed is increased from 1000r/min to 2000r/min, and the rotating speed of a load motor is 0; setting the Transmission Module 140 action (Preset control Command) to Transmission 5 Gear, Clutch at t1Time of day combining at t2The moments are separated. First, the test control module 170 generates a motor control command according to a preset control condition, generates a clutch and transmission control command (transmission control command) of the transmission module 140 according to a specific working condition, specifically a rotational speed control command of the driving motor, and sends the motor control command to the motor control module 160 and the transmission control command to the transmission control module 130. The motor control module 160 generates motor control signals according to the motor control commands to controlIn the range of 0 to t for driving motor1Increasing the temperature from 0 to 1000r/min in the time period and at t2～t3Then the speed is increased from 1000r/min to 2000 r/min; the transmission control module 130 generates a transmission control signal to control the clutch of the transmission module 140 at t according to the transmission control command1Time of day combining at t2And (5) separating time, and controlling the shifting fork position of the transmission to be a position corresponding to 5 th gear. Meanwhile, the transmission module 140 receives the motor speed and the torque detected by the sensor module 110, and transmits the motor speed, the torque and transmission parameters (clutch pressure, etc.) to the test control module 170 in real time, and the test control module 170 calculates the friction coefficient of the clutch according to the motor speed, the torque and the transmission parameters, and outputs the test result.
Of course, the test system of the transmission provided by the technical scheme of the embodiment can not only complete the test of the friction coefficient of the clutch under the specified working condition, but also perform various tests related to the transmission module, such as transmission lubrication flow calibration and the like.
According to the technical scheme of the embodiment of the invention, the state of the motor is detected by arranging the sensor to form feedback, so that the state of the motor is ensured to meet the requirement; the state of the transmission is controlled by the test control module according to the preset instruction, and the state of the motor is controlled by the motor control module, so that the joint control of the motor and the transmission is realized, the transmission can be tested under the set working condition, the test precision and the test applicability are improved, and the automatic test of the fine test items of the transmission is realized.
Example two
Fig. 2 is a schematic structural diagram of a transmission testing system according to a second embodiment of the present invention, which is a further refinement of the previous embodiment, and as shown in fig. 2, the transmission testing system disclosed in this embodiment includes: the device comprises a sensor module 210, a CAN communication module 220, a transmission control module 230, a transmission module 240, a motor module 250, a frequency converter unit 261, a programmable logic control unit 262, a motor control unit 263, a data acquisition unit 271, a test control unit 272 and a test result generation unit 273.
The sensor module 210 is configured to detect status information of a motor of the motor module 250; the CAN communication module 220 is used to send the output of the sensor module 210 to the transmission control module 230; the transmission control module 230 is configured to receive a transmission control instruction of the test control unit 271, control the transmission module 240 according to the transmission control instruction, and receive state information output by the sensor module 210 to determine whether the running state of the motor meets a requirement; the motor control unit 263 is configured to generate a logic control instruction according to the motor control instruction output by the test control unit 271; the programmable logic control unit 262 is used for generating a frequency converter control instruction according to the logic control instruction output by the motor control unit 263; the frequency converter unit 261 is used for controlling the rotating speed or torque of the motor according to a frequency converter control instruction output by the programmable logic control unit 262; the data acquisition unit 271 is used for acquiring transmission parameters output by the transmission module 240; the test control unit 272 is configured to receive a preset control condition and a preset control instruction, generate a motor control instruction according to the preset control condition, and generate a transmission control instruction according to the preset control instruction; the test result generating unit 273 is configured to generate a test result of the transmission according to the preset control instruction and each of the transmission parameters.
Specifically, the CAN communication module 220 is a CAN bus analog input module, and is configured to send the data of the rotation speed, the torque and the temperature detected by the sensor module 210 to the transmission control module 230 through an application protocol CCP based on a CAN bus.
Specifically, the motor module 250 includes a first motor, a second motor and a third motor, wherein the first motor is a driving motor for providing power to the transmission module 240, and the second motor and the third motor are load motors for providing load to the transmission of the transmission module 240. The corresponding sensor module 210 also includes three sets of sensors, which are respectively used to detect the rotation speed and torque of the three motors and the temperature of the motor bearing seat.
Correspondingly, the frequency converter unit 261 also comprises three frequency converters, a first frequency converter for controlling the first motor, a second frequency converter for controlling the second motor and a third frequency converter for controlling the third motor. The frequency converter controls the rotating speed or torque of the motor by changing the frequency of the working power supply of the motor.
The motor module 250, the frequency converter unit 261, the programmable logic control unit 262 and the motor control unit 263 form a bench platform for testing the transmission, and the motor control unit 263 can also be referred to as a bench platform control unit.
Specifically, the counter testing system further includes an analog quantity collecting module, configured to collect analog quantities, such as information on the rotation speed, the torque, and the temperature of the motor, output by the sensor module 210, and send the information to the programmable logic control unit 262.
Specifically, the programmable logic control unit 262 includes an ethernet communication subunit, a serial communication subunit, an analog quantity communication subunit and a central processor subunit, where the analog quantity communication subunit is used to receive the analog quantity from the analog quantity acquisition module; the ethernet communication subunit is configured to communicate with the motor control unit 263 to control the motor via the programmable logic control unit; the serial port communication subunit is used for communicating with the frequency converter unit 261; the central processor subunit is used for compiling basic control logic of the frequency converter unit 261 and functions of overrun alarm and log protection.
Specifically, the motor control unit 263 may be developed by using a computer high-level programming language, such as Python language, for writing a motor control subroutine to be called by the test control module 170. Further, a Pythonsnap7 communication library can be used to realize communication and control between the motor control unit 263 and the programmable logic control unit 262.
Specifically, the test control unit 272 is configured to control the motor control unit 263 and the transmission control module 230 simultaneously, so as to implement deep communication between the motor and the transmission, so as to meet the requirement of an automated test for a refined test project. The data acquisition unit 271 may generate an acquisition window based on CANape software to acquire data.
According to the technical scheme of the embodiment of the invention, the state of the motor is detected by arranging the sensor to form feedback, so that the state of the motor is ensured to meet the requirement; the motor is controlled by the motor control unit, the programmable logic control unit and the frequency converter; the state of the transmission is controlled by setting the test control unit according to the preset instruction, and the state of the motor is controlled by the motor control module, so that the joint control of the motor and the transmission is realized, the transmission can be tested under the set working condition, the consistency and the precision of the tested data are improved, the automatic test of the refined test project of the transmission is realized, and the product research and development period is shortened.
EXAMPLE III
Fig. 3 is a flowchart of a transmission testing method in a third embodiment of the present invention, where this embodiment is applicable to a case of testing a transmission of an automobile, and the method may be executed by a transmission testing system, and specifically includes the following steps:
and 310, generating a motor control instruction according to a preset control condition through the test control module, and generating a transmission control instruction according to the preset control instruction.
At step 320, state information of the motor is detected via the sensor module.
And 330, controlling the running state of the motor module according to the motor control instruction through the motor control module.
And 340, judging whether the running state of the motor module meets the requirement or not according to the state information through a transmission control module.
And 350, if so, controlling a transmission module through a transmission control module according to the transmission control command to obtain the transmission parameter of the transmission.
And 360, generating a test result of the transmission according to the transmission parameter output by the transmission module through the test control module.
According to the technical scheme of the embodiment of the invention, feedback is formed through the state information of the electric detector, so that the state of the motor is ensured to meet the requirement; the state of the transmission and the state of the motor are controlled according to the preset instruction, so that the combined control of the motor and the transmission is realized, the transmission can be tested under the set working condition, the testing precision and the testing applicability are improved, and the automatic testing of the fine testing project of the transmission is realized.
Optionally, the controlling, by the motor control module, the operating state of the motor module according to the motor control instruction includes: generating a logic control instruction according to the motor control instruction output by the test control module through a motor control unit; generating a frequency converter control instruction according to the logic control instruction output by the motor control unit through a programmable logic control unit; and controlling the rotating speed or the torque of the motor through a frequency converter unit according to a frequency converter control command output by the programmable logic control unit.
Optionally, the controlling, by the motor control module, the operating state of the motor module according to the motor control instruction includes: generating each single-step control instruction for controlling the single-step operation of the motor according to the motor control instruction through a single-step control instruction generating unit; generating a continuous control instruction for controlling the motor to continuously run according to the motor control instruction through a continuous control instruction generating unit; logging the operation of the motor via an operation logging unit
Optionally, generating, by the test control module, a test result of the transmission according to the transmission parameter output by the transmission module includes: acquiring transmission parameters output by the transmission module via a data acquisition unit; receiving a preset control condition and a preset control instruction through a test control unit, generating a motor control instruction according to the preset control condition, and generating a transmission control instruction according to the preset control instruction; and generating a test result of the transmission according to the preset control instruction and each transmission parameter through a test result generating unit.
Example four
A fourth embodiment of the present invention also provides a storage medium containing computer-executable instructions which, when executed by a computer processor, perform a transmission testing method, the method comprising:
generating a motor control instruction according to a preset control condition through a test control module, and generating a transmission control instruction according to the preset control instruction;
detecting state information of the motor via the sensor module;
controlling the running state of the motor module according to the motor control instruction through the motor control module;
judging whether the running state of the motor module meets the requirement or not according to the state information by a transmission control module;
if yes, controlling a transmission module through a transmission control module according to the transmission control command to obtain a transmission parameter of the transmission;
generating, via a test control module, a test result of the transmission as a function of the transmission parameter output by the transmission module.
Of course, the embodiments of the present invention provide a storage medium containing computer-executable instructions, which are not limited to the method operations described above, but can also perform related operations in the transmission testing method provided by any of the embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the transmission test system, the units and modules included in the embodiment are merely divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A transmission testing system is characterized by comprising a sensor module, a communication module, a transmission control module, a transmission module, a motor control module and a testing control module,
the sensor module is used for detecting the state information of a motor of the motor module;
the communication module is used for sending the output of the sensor module to the transmission control module;
the transmission control module is used for receiving a transmission control instruction of the test control module, controlling the transmission module according to the transmission control instruction, and receiving state information output by the sensor module to judge whether the running state of the motor meets the requirement;
the motor control module is used for receiving a motor control instruction of the test control module and controlling the running state of the motor according to the motor control instruction;
the test control module is used for receiving preset control conditions and preset control instructions, generating motor control instructions according to the preset control conditions, generating transmission control instructions according to the preset control instructions, and receiving transmission parameters output by the transmission module so as to generate a test result of the transmission according to the transmission parameters.
2. The system of claim 1, wherein the sensor module comprises:
the motor temperature sensor is used for detecting the temperature of the motor bearing seat;
the motor rotating speed sensor is used for detecting the rotating speed of the motor;
and the motor torque sensor is used for detecting the torque of the motor.
3. The system of claim 1, wherein the motor module comprises a drive motor, and at least one load motor, wherein,
the driving motor is in communication connection with the transmission and is used for providing driving power for the transmission;
the load motor is in communication connection with the transmission and is used for providing a load for the transmission.
4. The system of claim 1, wherein the transmission module comprises a clutch, a transmission, and a differential.
5. The system of claim 4, wherein the transmission parameters include one or more of a fork position signal, a transmission oil temperature, a transmission output speed, a clutch input speed, a clutch pressure, and a clutch output speed.
6. The system of claim 1, wherein the motor control module comprises a frequency converter unit, a programmable logic control unit, and a motor control unit, wherein,
the motor control unit is used for generating a logic control instruction according to the motor control instruction output by the test control module;
the programmable logic control unit is used for generating a frequency converter control instruction according to the logic control instruction output by the motor control unit;
and the frequency converter unit is used for controlling the rotating speed or the torque of the motor according to the frequency converter control instruction output by the programmable logic control unit.
7. The system of claim 1, wherein the motor control module comprises:
the single-step control instruction generating unit is used for generating each single-step control instruction for controlling the single-step operation of the motor according to the motor control instruction;
the continuous control instruction generating unit is used for generating a continuous control instruction for controlling the motor to continuously run according to the motor control instruction;
and the operation log unit is used for recording the log of the motor operation.
8. The system of claim 1, wherein the test control module comprises:
the data acquisition unit is used for acquiring the transmission parameters output by the transmission module;
the testing control unit is used for receiving preset control conditions and preset control instructions, generating motor control instructions according to the preset control conditions and generating transmission control instructions according to the preset control instructions;
and the test result generating unit is used for generating a test result of the transmission according to the preset control instruction and each transmission parameter.
9. A transmission testing method, comprising:
generating a motor control instruction according to a preset control condition through a test control module, and generating a transmission control instruction according to the preset control instruction;
detecting state information of the motor via the sensor module;
controlling the running state of the motor module according to the motor control instruction through the motor control module;
judging whether the running state of the motor module meets the requirement or not according to the state information by a transmission control module;
if yes, controlling a transmission module through a transmission control module according to the transmission control command to obtain a transmission parameter of the transmission;
generating, via a test control module, a test result of the transmission as a function of the transmission parameter output by the transmission module.
10. A storage medium containing computer executable instructions for performing the transmission testing method of any one of claims 9 when executed by a computer processor.
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Application publication date: 20200313 |
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| RJ01 | Rejection of invention patent application after publication |