CN215910615U - Endurance test monitoring system suitable for automatic mechanical transmission product group - Google Patents
Endurance test monitoring system suitable for automatic mechanical transmission product group Download PDFInfo
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- CN215910615U CN215910615U CN202121759903.XU CN202121759903U CN215910615U CN 215910615 U CN215910615 U CN 215910615U CN 202121759903 U CN202121759903 U CN 202121759903U CN 215910615 U CN215910615 U CN 215910615U
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Abstract
The utility model discloses an endurance test monitoring system suitable for an automatic mechanical gearbox product set, belonging to the field of test monitoring; the endurance test monitoring system can monitor 6 sets of product data at the same time, and has high cost performance; product information is monitored and recorded in real time for 24 hours, and problems can be found in time; an external temperature compensation system is arranged, so that the judgment threshold value can be adjusted according to the actual working environment temperature of the product, and misjudgment is avoided; the start and stop of the product are controlled independently, when one or more products have faults, the fault product can be stopped automatically, the action of the product is stopped automatically, and electricity is saved; the test early-stage setting is simplified, and the operation is simple; the cost is reduced and the efficiency is improved.
Description
Technical Field
The utility model belongs to the field of test monitoring, and particularly relates to an endurance test monitoring system suitable for an automatic mechanical gearbox product set.
Background
AMT product groups (including PCA, XYA, RC, SC and the like) are used as important components of the gearbox, and in order to ensure the stability and reliability of products, the products need to be subjected to endurance test.
At present, AMT product group endurance test is carried out by data acquisition through some general data acquisition equipment, and data monitoring and fault self-stopping cannot be realized; 3 sets of universal data acquisition equipment are required to work for 6 months at the same time to complete data acquisition of a whole round of endurance test, and the cost performance of the equipment is relatively low; the system judgment threshold value cannot be adjusted based on the temperature change of the high-low temperature box without external temperature compensation; the testing method has the advantages of more related gas circuits/circuits, more consumption of manpower and material resources in testing arrangement and low efficiency.
Meanwhile, based on the problem that the conventional AMT endurance test mainly depends on manual observation and monitoring, a scholars provides a closed-loop control system, and software continuously analyzes data fed back by a sensor and compares the data with a target instruction to realize real-time adjustment and control of an execution mechanism, so that the effect that the actual execution of the execution mechanism is consistent with the target action is achieved. The scheme realizes an automatic endurance testing mechanism, is simple and convenient to operate and can monitor and record in real time; the improper gear engaging action in the testing process can be identified and alarmed; external temperature compensation is added, so that faults can be accurately judged; the test is automatically stopped, and the electric energy is saved. The electric control cabinet has defects in remote control and background data processing. In future, the electric control cabinet can increase remote control and automatically connect the fault alarm to a remote upper computer, so that a worker can remotely and timely handle the fault problem; a data processing module is added to automatically extract fault data and generate a fault report; or automatically generating a test report after the test is finished.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides the endurance test monitoring system suitable for the automatic mechanical gearbox product set, which is reasonable in design, overcomes the defects of the prior art and has a good effect.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a durability test monitoring system suitable for an automatic mechanical gearbox product group comprises an upper computer, a CAN acquisition card, an analog acquisition card, a digital acquisition card, a CAN bridge module, an ECU, a tested product, a test fixture and a high-low temperature box; the upper computer and the high and low temperature box are communicated through a network interface;
the upper computer is connected with the CAN acquisition card, the analog acquisition card and the digital acquisition card through lines respectively; the CAN acquisition card, the CAN bridge module, the ECU, the tested product and the test fixture are sequentially connected through a circuit;
each ECU corresponds to one CAN bridge module, and the CAN bridge module corresponding to each ECU is distributed with different IP addresses.
Preferably, the CAN bridge module, the ECU, the tested product and the test fixture are respectively provided with six; the CAN bridge module, the ECU, the tested product and the test fixture correspond to each other one by one.
Preferably, the test fixture is provided with an external displacement sensor and an oil pressure sensor; the external displacement sensor and the oil pressure sensor are used for testing an external displacement signal and an oil pressure signal respectively.
Preferably, the analog quantity acquisition card is used for acquiring an external displacement signal and an oil pressure signal.
Preferably, by means of an analog quantity acquisition card, the upper computer can acquire and monitor external displacement signals and oil pressure signals of each selected gear on the test fixture in real time so as to acquire oil injection oil pressure in the test fixture in real time, and judge whether the product has enough oil injection lubrication in the experimental process through a set threshold range, so that abnormal abrasion is timely discovered and avoided; and acquiring external displacement information in the test fixture in real time, ensuring that each selected gear is normally shifted without unnecessary abrasion, and assisting in verifying whether the tested product is in place.
Preferably, the system also comprises an ECU power supply relay, an oil injection electromagnetic valve, an air path electromagnetic valve, an oil injection electromagnetic relay and an alarm indicator lamp; the ECU power supply relay, the oil injection electromagnetic valve, the gas circuit electromagnetic valve, the oil injection electromagnetic relay and the alarm indicator lamp are all arranged on the electric control cabinet;
the ECU power supply relay is configured for controlling the on-off of the ECU power supply, and indirectly controls the actuation of the tested product or not by controlling the on-off of the ECU power supply;
an oil injection solenoid valve configured to control oil injection;
a gas circuit solenoid valve configured to assist in actuating a product;
the oil injection electromagnetic relay is configured to control the oil injection electromagnetic valve to realize intermittent oil injection;
and the alarm indicator lamp is configured to be used for giving a fault alarm and timely prompting a worker to overhaul.
Preferably, the digital quantity acquisition card is used for acquiring gear information and electromagnetic valve signals and controlling the oil injection electromagnetic valve, the gas path on-off and the start-stop reset.
Preferably, by means of a digital quantity acquisition card, the upper computer can acquire a driving voltage signal and an electromagnetic valve signal of a tested product at the ECU end in real time, and further upload the driving voltage signal and the electromagnetic valve signal to a GUI (graphical user interface) of the upper computer, identify a test fault in time, and intervene and process the test fault; the upper computer can calculate the current gear according to the combination relation of the gear selection displacement and the gear engaging displacement of the tested product; then, judging whether the tested product works normally or not through the set threshold range; respectively accumulating OK/NOK gear engaging times and total durable times of each gear according to the judgment result OK/NOK; the upper computer can send an oil injection control signal to the test fixture, so that enough oil injection is ensured in the test process; the host computer can control the monitoring gas circuit, and when a product breaks down or reaches the target number of times, the electromagnetic valve of the gas circuit is automatically closed, the power supply is stopped, and electricity is saved.
Preferably, based on a high-low temperature box communication protocol and a network cable, the upper computer and the high-low temperature box can be in temperature communication; based on the characteristics of the internal displacement sensor of the product to be measured, the internal displacement compensation coefficients of the product in different temperature intervals can be set, and the coefficients are used for adjusting the internal displacement threshold ranges of the different temperature intervals; in the test process, the upper computer can match the corresponding threshold range with temperature compensation according to the environment temperature acquired in real time, so that the internal displacement is monitored and judged in real time, and the judgment error caused by the temperature drift of the sensor is reduced.
And (3) peripheral setting of a monitoring system:
the equipment integrates the electrical parts required by the endurance test, the external wiring harness adopts an aviation plug, the air passages adopt quick-plugging connectors, and each main air passage can independently regulate the pressure, so that the operation is simple, convenient and quick.
The monitoring system and the high-low temperature box are communicated through a network interface.
The working principle is as follows:
the upper computer intermittently sends CAN messages to the ECU through the CAN acquisition card and the CAN bridge module, the ECU responds to the messages, and internal displacement signals acquired from a detected product end are fed back to the upper computer in the form of CAN messages through the CAN bridge module and the CAN acquisition card; the upper computer analyzes the received CAN message so as to obtain real-time internal displacement information of the tested product; similarly, the upper computer can acquire the internal displacement information of the other 5 tested products in real time; based on the set threshold range, the upper computer judges the obtained internal displacement: if the gear is in the threshold range, judging that the gear is in place; if the gear is out of the threshold range, determining that the gear is unqualified; if the gear is continuously and unqualified for multiple times, the system can judge that the gear of the product is failed, start fault alarm and stop the operation of the failed product, thereby saving electricity; meanwhile, the oil injection and external displacement information of the clamp can be uploaded to an upper computer by virtue of a plurality of groups of analog quantity acquisition modules.
The upper computer and the high-low temperature box can communicate through the network interface, the actual temperature of the high-low temperature box is obtained in real time, the judgment threshold coefficients at different temperatures are set by means of the upper computer, and the judgment threshold is corrected and temperature compensated, so that misjudgment caused by temperature change is avoided.
The upper computer displays and records the internal displacement, oil pressure, external displacement and product solenoid valve information of 6 products in real time, judges the internal displacement, oil pressure and gear of the products, and controls the power switch of the ECU and the oil injection solenoid valve to start and stop the test of a single product or a plurality of products if the set threshold range is not met.
The utility model has the following beneficial technical effects:
the endurance test monitoring system can monitor 6 sets of product data at the same time, and has high cost performance; product information (including internal displacement, external displacement, oil pressure, electromagnetic valves, gears, counting and the like) is monitored and recorded in real time for 24 hours, and problems can be found in time; an external temperature compensation system is arranged, so that the judgment threshold value can be adjusted according to the actual working environment temperature of the product, and misjudgment is avoided; the start and stop of the product are controlled independently, when one or more products have faults, the fault product can be stopped automatically, the action of the product is stopped automatically, and electricity is saved; the test early-stage setting is simplified, and the operation is simple; the cost is reduced and the efficiency is improved.
Drawings
Fig. 1 is a schematic view of a monitoring system configuration.
Fig. 2 is a schematic diagram of the real-time information acquisition of 6 sets of products.
Wherein, 1-an upper computer; 2-digital quantity collecting card; 3-analog quantity acquisition card; 4-CAN acquisition card; 5-CAN bridge module; 6-ECU; 7-the product to be tested; 8-a test fixture; 9-high and low temperature box.
Detailed Description
The utility model is described in further detail below with reference to the following figures and detailed description:
the monitoring console integrates electricity and gas required by durability, peripheral connection adopts a quick plug/aviation plug mode, each main gas circuit can independently regulate pressure, and the early-stage setting operation is simple, convenient and quick.
In order to meet the requirement that one set of acquisition system monitors a plurality of products in real time, the equipment adopts a mode that a CAN acquisition card and a CAN bridge module work in a matched mode. And configuring CAN bridge modules, and allocating different IP addresses to the CAN bridge modules corresponding to each ECU so as to share the same CAN acquisition system to realize real-time acquisition and monitoring of test information of all products, as shown in FIG. 1.
As shown in fig. 2, during the test, the upper computer 1 intermittently sends a CAN message to the ECU6 through the CAN acquisition card 4 and the CAN bridge module 5, and the ECU6 responds to the CAN message and feeds back an internal displacement signal acquired from the end of the product 7 to be tested to the upper computer 1 through the CAN bridge module 5 and the CAN acquisition card 4 in the form of a CAN message. The upper computer 1 analyzes the received CAN message, and then obtains real-time internal displacement information of the tested product. Similarly, the upper computer can acquire the internal displacement information of the other 5 tested products in real time.
Based on the set threshold range, the upper computer 1 judges the obtained internal displacement: if the gear is in the threshold range, judging that the gear is in place; and if the gear is out of the threshold range, determining that the gear is not qualified. If the gear is continuously and unqualified for multiple times, the system can judge that the gear of the product is failed, start fault alarm and stop the operation of the failed product, thereby saving electricity.
Signal acquisition, monitoring and judgment. The test fixture 8 is provided with an external displacement sensor and an oil pressure sensor.
With the help of analog quantity acquisition card 3, host computer 1 can gather in real time and control the outside displacement signal and the oil pressure signal of each selection gear on the anchor clamps to: a. acquiring oil injection oil pressure in the test fixture 8 in real time, and judging whether the product has enough oil injection lubrication in the experimental process through the set threshold range so as to timely find and avoid abnormal abrasion; b. the external displacement information in the test fixture 8 is obtained in real time, normal shifting of each gear is guaranteed, unnecessary abrasion is avoided, and whether a tested product is in place or not can be verified in an auxiliary mode.
With the aid of a digital acquisition card, in order to: a. and the driving voltage signal (digital signal) of the tested product at the ECU6 end is collected in real time and then is uploaded to the GUI interface of the upper computer 1. The collection of the electromagnetic valve signals of the product is beneficial to identifying the test faults in time and intervening and processing the test faults; b. and calculating the current gear according to the combination relation of the gear selection displacement and the gear engaging displacement of the tested product 7. And then, judging whether the tested product works normally or not through the set threshold range. Respectively accumulating OK/NOK gear engaging times and total durable times of each gear according to the judgment result OK/NOK; c. sending an oil injection control signal to the test fixture 8 to ensure that oil injection is enough in the test process; d. and the gas circuit of the monitoring station is controlled, and when the product fails or reaches the target times, the electromagnetic valve of the gas circuit is automatically closed, the power supply is stopped, and the electricity is saved.
And (5) temperature compensation. Based on the communication protocol of the high-low temperature box, the temperature communication between the upper computer 1 and the high-low temperature box 9 is realized by means of network cables. Based on the characteristics of the internal displacement sensor of the product 7 to be measured, the internal displacement compensation coefficients of the product in different temperature intervals are set, and the coefficients are used for adjusting the internal displacement threshold ranges in the different temperature intervals. In the testing process, according to the environment temperature obtained in real time, the corresponding threshold range with temperature compensation is matched, so that the internal displacement is monitored and judged in real time, and the judgment error caused by the temperature drift of the sensor is reduced.
The monitoring station monitors the running of 6 sets of products in real time all the time until all the products reach the durable target times, the monitoring station can automatically cut off the gas and the power, and the test is finished.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (9)
1. An endurance test monitoring system suitable for an automatic mechanical transmission product group is characterized in that: the device comprises an upper computer, a CAN acquisition card, an analog acquisition card, a digital acquisition card, a CAN bridge module, an ECU, a tested product, a test fixture and a high-low temperature box; the upper computer and the high and low temperature box are communicated through a network interface;
the upper computer is connected with the CAN acquisition card, the analog acquisition card and the digital acquisition card through lines respectively; the CAN acquisition card, the CAN bridge module, the ECU, the tested product and the test fixture are sequentially connected through a circuit;
each ECU corresponds to one CAN bridge module, and the CAN bridge module corresponding to each ECU is distributed with different IP addresses.
2. The durability test monitoring system for an automated mechanical transmission product package of claim 1, wherein: six CAN bridge modules, six ECU modules, six tested products and six test fixtures are arranged respectively; the CAN bridge module, the ECU, the tested product and the test fixture correspond to each other one by one.
3. The durability test monitoring system for an automated mechanical transmission product package of claim 1, wherein: an external displacement sensor and an oil pressure sensor are arranged on the test fixture; the external displacement sensor and the oil pressure sensor are used for testing an external displacement signal and an oil pressure signal respectively.
4. The durability test monitoring system for an automated mechanical transmission product package of claim 3, wherein: and the analog quantity acquisition card is used for acquiring an external displacement signal and an oil pressure signal.
5. The durability test monitoring system for an automated mechanical transmission product package of claim 4, wherein: by means of an analog quantity acquisition card, the upper computer can acquire and monitor external displacement signals and oil pressure signals of each selected gear on the test fixture in real time so as to acquire oil injection oil pressure in the test fixture in real time, and judge whether the product has enough oil injection lubrication in the experimental process through a set threshold range, so that abnormal abrasion can be found and avoided in time; and acquiring external displacement information in the test fixture in real time, ensuring that each selected gear is normally shifted without unnecessary abrasion, and assisting in verifying whether the tested product is in place.
6. The durability test monitoring system for an automated mechanical transmission product package of claim 1, wherein: the system also comprises an ECU power supply relay, an oil injection electromagnetic valve, an air path electromagnetic valve, an oil injection electromagnetic relay and an alarm indicator lamp; the ECU power supply relay, the oil injection electromagnetic valve, the gas circuit electromagnetic valve, the oil injection electromagnetic relay and the alarm indicator lamp are all arranged on the electric control cabinet;
the ECU power supply relay is configured for controlling the on-off of the ECU power supply, and indirectly controls the actuation of the tested product or not by controlling the on-off of the ECU power supply;
an oil injection solenoid valve configured to control oil injection;
a gas circuit solenoid valve configured to assist in actuating a product;
the oil injection electromagnetic relay is configured to control the oil injection electromagnetic valve to realize intermittent oil injection;
and the alarm indicator lamp is configured to be used for giving a fault alarm and timely prompting a worker to overhaul.
7. The durability test monitoring system for an automated mechanical transmission product package of claim 6, wherein: and the digital quantity acquisition card is used for acquiring gear information and electromagnetic valve signals and controlling the oil injection electromagnetic valve, the gas path on-off and the start-stop reset.
8. The durability test monitoring system for an automated mechanical transmission product package of claim 7, wherein: by means of the digital quantity acquisition card, the upper computer can acquire a driving voltage signal and an electromagnetic valve signal of a tested product at the ECU end in real time, and then the driving voltage signal and the electromagnetic valve signal are uploaded to a GUI (graphical user interface) of the upper computer, so that a test fault is identified in time, and intervention and processing are carried out on the test fault.
9. The durability test monitoring system for an automated mechanical transmission product package of claim 1, wherein: based on high low temperature case communication protocol and net twine, can carry out temperature communication between host computer and the high low temperature case.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969946A (en) * | 2024-04-01 | 2024-05-03 | 山东普源电力工程有限公司 | Lighting system energy consumption detection method and system |
| CN117991086A (en) * | 2024-04-02 | 2024-05-07 | 佛山市圆上泉电器有限公司 | Instant heating type electric water heater overtemperature protection durability test equipment |
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2021
- 2021-07-30 CN CN202121759903.XU patent/CN215910615U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969946A (en) * | 2024-04-01 | 2024-05-03 | 山东普源电力工程有限公司 | Lighting system energy consumption detection method and system |
| CN117991086A (en) * | 2024-04-02 | 2024-05-07 | 佛山市圆上泉电器有限公司 | Instant heating type electric water heater overtemperature protection durability test equipment |
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