CN114088246A - Temperature monitoring device in vehicle test and temperature monitoring method in vehicle test - Google Patents
Temperature monitoring device in vehicle test and temperature monitoring method in vehicle test Download PDFInfo
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- CN114088246A CN114088246A CN202111383506.1A CN202111383506A CN114088246A CN 114088246 A CN114088246 A CN 114088246A CN 202111383506 A CN202111383506 A CN 202111383506A CN 114088246 A CN114088246 A CN 114088246A
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000012806 monitoring device Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 239000006096 absorbing agent Substances 0.000 claims description 97
- 230000035939 shock Effects 0.000 claims description 93
- 238000012545 processing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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- 230000007613 environmental effect Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
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Abstract
The invention discloses a temperature monitoring device and a temperature monitoring method in a vehicle test, wherein the temperature monitoring device in the vehicle test comprises a temperature sensor, a main controller and a display module. The temperature sensor is attached to a piece to be measured of the vehicle; the main controller comprises a receiving and decoding module, an operation module, a CAN (controller area network) transceiver module and a power module, wherein the receiving and decoding module is connected with the temperature sensor; the operation module is provided with a first preset temperature and a second preset temperature; the CAN receiving and transmitting module receives the temperature signal compared by the operation module; the power supply module is connected with an ignition device and a battery device of the vehicle; the display module is used for receiving and displaying the temperature signal in real time; when the temperature is higher than the first preset temperature, the display module displays the real-time temperature and the alarm signal of the piece to be measured; and when the temperature is lower than the second preset temperature, the display module displays the real-time temperature of the piece to be measured. The technical scheme of the invention can avoid the failure of the to-be-tested piece due to overhigh temperature.
Description
Technical Field
The invention relates to the technical field of vehicle tests, in particular to a temperature monitoring device and a temperature monitoring method in a vehicle test.
Background
Before mass production, vehicles need to be tested, that is, vehicles, parts and materials thereof are tested in an actual use environment, a special test field or an indoor test bed according to a predetermined program, so as to find technical characteristics, reliability, durability and environmental adaptability of the vehicles, and to enable various indexes of the vehicles to meet corresponding standards.
In the process of durability test of the whole vehicle, when the durability test of vehicle parts such as the shock absorber is carried out, the shock absorber is only assembled on the whole vehicle, and a special temperature monitoring system is not provided. Since the test is performed continuously and for a long time, the temperature of the shock absorber increases with the time of the test, and the shock absorber fails when the temperature of the shock absorber is too high.
At present, the vibration absorber is cooled by water in a test field in a water pool only after a certain mileage of a whole vehicle test is judged through experience, or the vibration absorber is cooled by air in a flameout mode of the whole vehicle, and the test is continued after the temperature of the vibration absorber is reduced.
Disclosure of Invention
The invention mainly aims to provide a temperature monitoring device in a vehicle test, aiming at avoiding the failure of a to-be-tested piece due to overhigh temperature.
In order to achieve the above object, the present invention provides a temperature monitoring device in a vehicle test, comprising:
the temperature sensor is attached to a to-be-detected piece of the vehicle and used for monitoring the real-time temperature of the to-be-detected piece;
the main controller comprises a receiving and decoding module, an operation module, a CAN (controller area network) transceiver module and a power module, wherein the receiving and decoding module is connected with the temperature sensor and is used for receiving and processing a temperature signal transmitted by the temperature sensor; the operation module is provided with a first preset temperature and a second preset temperature, the first preset temperature is higher than the second preset temperature, and the operation module compares the temperature signal transmitted by the receiving and decoding module with the first preset temperature and the second preset temperature; the CAN receiving and transmitting module receives the temperature signal compared by the operation module; the power supply module is used for being connected with an ignition device and a battery device of the vehicle to provide electric energy for the main controller; and
the display module is connected with the CAN transceiving module and used for receiving and displaying the temperature signal in real time;
when the temperature monitored by the temperature sensor is higher than the first preset temperature, the display module displays the real-time temperature and the alarm signal of the piece to be detected; and when the temperature monitored by the temperature sensor is lower than a second preset temperature, the display module displays the real-time temperature of the piece to be detected.
Optionally, the temperature monitoring device in the vehicle test further includes a CAN line, one end of the CAN line is connected to the CAN transceiver module, and when the display module does not display the temperature signal and only displays the alarm signal, the other end of the CAN line is connected to a diagnostic instrument for diagnosing the temperature monitoring device in the vehicle test.
Optionally, the temperature monitoring device in the vehicle test further comprises a CAN line, one end of the CAN line is connected with the CAN transceiver module, and the other end of the CAN line is connected with a notebook computer and used for recording the real-time temperature of the to-be-tested piece.
Optionally, the first preset temperature is 90 ℃ and the second preset temperature is 85 ℃.
Optionally, the piece to be tested is a vibration damper.
Optionally, the vibration damper includes a first vibration damper, a second vibration damper, a third vibration damper, and a fourth vibration damper, and the temperature sensor includes a first temperature sensor disposed at a lower portion of the first vibration damper, a second temperature sensor disposed at a lower portion of the second vibration damper, a third temperature sensor disposed at a lower portion of the third vibration damper, and a fourth temperature sensor disposed at a lower portion of the fourth vibration damper.
The invention also provides a temperature monitoring method in the vehicle test, which comprises the following steps:
the method comprises the following steps that firstly, a temperature sensor is attached to a to-be-detected piece of a vehicle, the output end of the temperature sensor is connected with a receiving and decoding module of a main controller, an operation module of the main controller is provided with a first preset temperature and a second preset temperature, a CAN (controller area network) transceiver module of the main controller is connected with a display module, and a power supply module of the main controller is connected with an ignition device and a battery device of the vehicle;
step two, the temperature sensor transmits the real-time temperature of the piece to be detected to the receiving and decoding module, the receiving and decoding module analyzes and processes the temperature signal, and the operation module compares the analyzed temperature signal;
when the temperature exceeds a first preset temperature, a temperature signal is transmitted to a display module through a CAN (controller area network) transceiver module, and the display module displays the real-time temperature and an alarm signal of the piece to be measured;
and step four, when the temperature is lower than a second preset temperature, transmitting a temperature signal to a display module through a CAN (controller area network) transceiver module, and displaying the real-time temperature of the piece to be detected by the display module.
Optionally, the temperature detection method in the vehicle test further includes the following steps: when the display module does not display the temperature signal and only displays the alarm signal, the diagnostic instrument is connected with the CAN receiving and transmitting module through the CAN line so as to carry out diagnosis.
Optionally, the temperature detection method in the vehicle test further includes the following steps: the notebook computer is connected with the CAN transceiving module through a CAN line so as to record the real-time temperature of the piece to be tested.
Optionally, the to-be-measured piece is a shock absorber, the first preset temperature is 90 ℃, and the second preset temperature is 85 ℃.
According to the technical scheme, the temperature sensor is arranged on the shock absorber of the to-be-detected piece, the temperature sensor transmits a temperature signal to the receiving and decoding module of the main controller through a cable, the receiving and decoding module analyzes the temperature signal and transmits the temperature signal to the operation module, the operation module compares the temperature signal with the first preset temperature and the second preset temperature and transmits the temperature signal to the CAN transceiving module, and the temperature signal is transmitted to the display module through the CAN transceiving module, so that a driver CAN observe the temperature change of the shock absorber of the to-be-detected piece through the display module conveniently, and the shock absorber CAN be cooled in time. Therefore, compared with a method for judging the temperature of the shock absorber by depending on experience in the prior art, on one hand, the real-time temperature of the shock absorber can be observed through the display module, the shock absorber can be subjected to cooling treatment in time, and the problems of oil seal damage, oil leakage failure and the like caused by overhigh temperature of the shock absorber are avoided, so that frequent replacement of the shock absorber is avoided, and the test cost is saved; on the other hand, the shock absorber is timely cooled, the problem that the shock absorber is too long in cooling time after being too high in temperature and then required to be cooled is solved, and the efficiency of a vehicle test is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a temperature monitoring device in a vehicle test according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Before mass production, vehicles need to be tested, that is, vehicles or parts and materials thereof are tested in actual use environment, special test fields or indoor test beds according to a predetermined program, so as to find out the technical characteristics, reliability, durability and environmental adaptability of the vehicles, and to enable various indexes of the vehicles to meet corresponding standards.
In the process of durability test of the whole vehicle, when the durability test of vehicle parts such as the shock absorber is carried out, the shock absorber is only assembled on the whole vehicle, and a special temperature monitoring system is not provided. Because the test is continuous and long-term operation, the temperature of the shock absorber can rise along with the extension of the test time, and when the temperature of the shock absorber is too high, the problems of shock absorber failure and the like can be caused.
At present, the test can be continued only after the test for a certain mileage of the whole vehicle is judged through experience, the test is carried out in a test field wading pool to carry out water cooling on the shock absorber, or the test is carried out after the temperature of the shock absorber is reduced by carrying out air cooling on the shock absorber through flameout of the whole vehicle. On one hand, the method has the problems that the oil seal of the shock absorber is damaged when the cooling is not in time, and the oil leakage of the shock absorber is failed; on the other hand, the shock absorber is frequently replaced due to the failure of the shock absorber, so that the cost of the vehicle durability test is increased; on the other hand, the test process does not conform to the actual use condition of the shock absorber, and the durability of the shock absorber is determined without any interference.
In view of this, the invention provides a temperature monitoring device in vehicle test.
Referring to fig. 1, in the embodiment of the present invention, the temperature monitoring device for vehicle testing includes a temperature sensor 10, a main controller 20, and a display module 50. The temperature sensor 10 is attached to a to-be-detected part of the vehicle and used for monitoring the real-time temperature of the to-be-detected part. The temperature sensor 10 can be a thermal resistance sensor or a thermocouple sensor, in an embodiment, the temperature sensor 10 is a thermocouple sensor, the to-be-detected part is a shock absorber, a sensing end of the thermocouple sensor is adhered to the shock absorber, and the other end of the thermocouple sensor is connected with the main controller 20 through a cable, so that the temperature of the shock absorber is measured in real time.
The main controller 20 includes a receiving and decoding module 21, an operation module 22, a CAN transceiver module 23, and a power module 24. The receiving and decoding module 21 is connected to the temperature sensor 10 and is used for receiving and processing the temperature signal transmitted by the temperature sensor 10. Specifically, the receiving and decoding module 21 is connected to the temperature sensor 10 through a cable, receives the temperature signal transmitted from the temperature sensor 10, analyzes the temperature signal, and transmits the analyzed temperature signal to the operation module 22.
The operation module 22 is provided with a first preset temperature and a second preset temperature, and the first preset temperature is greater than the second preset temperature, and the operation module 22 compares the temperature signal transmitted by the receiving and decoding module 21 with the first preset temperature and the second preset temperature, so as to determine whether the temperature of the shock absorber measured by the temperature sensor 10 is within a normal temperature range. The first preset temperature is set as the highest limit temperature of the working of the shock absorber, the second preset temperature is set as the safe temperature of the working of the shock absorber, and a temperature difference exists between the first preset temperature and the second preset temperature. When the temperature of the shock absorber reaches a first preset temperature, immediately cooling the shock absorber; and when the temperature of the shock absorber is reduced to the second preset temperature, the shock absorber can continue to work. Therefore, the vibration absorber can be ensured to work in a normal temperature range. In one embodiment, the first predetermined temperature is 90 ℃ and the second predetermined temperature is 85 ℃, and the temperature difference between the first predetermined temperature and the second predetermined temperature is 15 ℃, so that the normal operation of the shock absorber can be ensured. Of course, the first preset temperature and the second preset temperature can be set according to the normal use temperature range of the shock absorber.
The CAN transceiver module 23 receives the temperature signal compared by the operation module 22, and the operation module 22 compares the temperature signal, transmits the compared temperature signal to the CAN transceiver module 23, and transmits the temperature signal to the outside through the CAN transceiver module 23. Currently, the commonly used CAN transceiver module 23 is a similar 232 or 485 converting chip, and its main function is to convert TTL signals of the CAN controller into differential signals of the CAN lines 60. Currently, a conventional CAN controller is generally integrated with the main controller 20, and the TTL signals sent and received by the CAN controller are the pins (high or low) signals of the main controller 20. The CAN transceiver module 23 CAN transmit signal data to the CAN line 60 or receive data from the CAN line 60 to the CAN controller.
The power module 24 is adapted to be connected to an ignition device 30 and a battery device 40 of the vehicle to provide power to the main controller 20. Specifically, the power module 24 is connected to the ignition device 30 and the battery device 40 of the vehicle through cables, and when the ignition of the vehicle is started, the power module 24 obtains power from the battery device 40 of the vehicle through the cables to provide power for the operation of the main controller 20. The temperature monitoring device in the vehicle test is directly powered by the vehicle, so that the situation that a working power supply is independently arranged for the main controller 20 is avoided, and the structure of the temperature monitoring device in the vehicle test is simpler.
The display module 50 is connected with the CAN transceiver module 23 and is used for receiving and displaying the temperature signal in real time. Specifically, display module 50 is driver's display instrument board, and display module 50 passes through the cable and is connected with main control unit 20's CAN transceiver module 23 to show temperature signal in display module 50, in order to make things convenient for the driver to observe, when the temperature display of shock absorber exceeds the scope or shows the mistake, so that the driver in time overhauls.
When a vehicle is tested, a temperature monitoring device in the vehicle test works, and when the temperature monitored by the temperature sensor 10 is higher than a first preset temperature, the display module 50 displays the real-time temperature and an alarm signal of a piece to be tested; when the temperature monitored by the temperature sensor 10 is lower than the second preset temperature, the display module 50 displays the real-time temperature of the to-be-measured object. So, can make things convenient for the driver in time to observe the temperature variation of shock absorber, when shock absorber high temperature, driver's display panel board shows alarm signal to remind the driver in time to cool down the processing to the shock absorber.
According to the technical scheme, the temperature sensor 10 is arranged on the shock absorber of the to-be-tested piece, the temperature sensor 10 transmits a temperature signal to the receiving and decoding module 21 of the main controller 20 through a cable, the receiving and decoding module 21 analyzes the temperature signal and transmits the temperature signal to the operation module 22, the operation module 22 compares the temperature signal with a first preset temperature and a second preset temperature and transmits the temperature signal to the CAN transceiving module 23, and the temperature signal is transmitted to the display module 50 through the CAN transceiving module 23, so that a driver CAN observe the temperature change of the shock absorber of the to-be-tested piece conveniently in time through the display module 50, and the shock absorber CAN take cooling treatment measures in time. Therefore, compared with a method for judging the temperature of the shock absorber by depending on experience in the prior art, on one hand, the real-time temperature of the shock absorber can be observed through the display module 50, the shock absorber can be subjected to cooling treatment in time, and the problems of oil seal damage, oil leakage failure and the like caused by overhigh temperature of the shock absorber are avoided, so that frequent replacement of the shock absorber is avoided, and the test cost is saved; on the other hand, the shock absorber is timely cooled, the problem that the shock absorber is too long in cooling time after being too high in temperature and then required to be cooled is solved, and the efficiency of a vehicle test is improved.
Further, the temperature monitoring device in the vehicle test further comprises a CAN line 60, one end of the CAN line 60 is connected with the CAN transceiver module 23, and when the display module 50 does not display the temperature signal and only displays the alarm signal, the other end of the CAN line 60 is connected with a diagnostic instrument for diagnosing the temperature monitoring device in the vehicle test. Specifically, the CAN line 60 is used for communication between various functional computers of the vehicle. If a vehicle reports a fault associated with CAN communication, the fault CAN be detected directly via CAN line 60. In one embodiment, one end of the CAN line 60 is connected to the CAN transceiver module 23 to receive the temperature signal from the CAN transceiver module 23, and the other end of the CAN line 60 is connected to the diagnostic device. When the display module 50 displays an error, namely the temperature signal is not displayed and only the alarm signal is displayed, or the temperature is displayed to exceed the first preset temperature value but not the alarm signal, or the temperature is displayed in a normal range but the alarm signal is displayed, the temperature monitoring device in the vehicle test is overhauled in time through the diagnostic instrument, and the test misalignment caused by the fact that the fault of the temperature monitoring device in the vehicle test is not removed in time is avoided.
Further, the temperature monitoring device in the vehicle test further comprises a CAN line 60, one end of the CAN line 60 is connected with the CAN transceiving module 23, and the other end of the CAN line 60 is connected with a notebook computer and used for recording the real-time temperature of the to-be-tested piece. So, accessible CAN line 60 makes things convenient for the analysis of later stage to the experimentation in with the real-time temperature record of shock absorber to the notebook in the experimentation.
In one embodiment, the shock absorbers are distributed between left and right sides of a front suspension structure and left and right sides of a rear suspension structure of a vehicle, and the shock absorbers include a first shock absorber, a second shock absorber, a third shock absorber, and a fourth shock absorber, and the temperature sensor 10 includes a first temperature sensor disposed at a lower portion of the first shock absorber, a second temperature sensor disposed at a lower portion of the second shock absorber, a third temperature sensor disposed at a lower portion of the third shock absorber, and a fourth temperature sensor disposed at a lower portion of the fourth shock absorber. A temperature sensor is arranged below each shock absorber, so that the temperature of each shock absorber can be conveniently monitored, and the temperature of each shock absorber can be more accurately measured.
The invention also provides a temperature monitoring method in the vehicle test, which comprises the following steps:
firstly, the temperature sensor 10 is attached to a to-be-detected piece of a vehicle, the output end of the temperature sensor is connected with a receiving and decoding module 21 of a main controller 20, an operation module 22 of the main controller 20 is provided with a first preset temperature and a second preset temperature, a CAN transceiver module 23 of the main controller 20 is connected with a display module 50, and a power supply module 24 of the main controller 20 is connected with an ignition device 30 and a battery device 40 of the vehicle.
Step two, the temperature sensor 10 transmits the real-time temperature of the to-be-detected piece to the receiving and decoding module 21, the receiving and decoding module 21 analyzes the temperature signal, and the operation module 22 compares the analyzed temperature signal. The operation module 22 compares the analyzed temperature signal with the first preset temperature and the second preset temperature, thereby determining whether the temperature signal is within a normal range.
And step three, when the temperature exceeds the first preset temperature, the temperature signal is transmitted to the display module 50 through the CAN transceiving module 23, and the display module 50 displays the real-time temperature and the alarm signal of the piece to be measured. Therefore, the driver can conveniently observe the temperature signal and the alarm signal from the display module 50 and timely cool the to-be-detected piece.
And step four, when the temperature is lower than the second preset temperature, the temperature signal is transmitted to the display module 50 through the CAN transceiving module 23, and the display module 50 displays the real-time temperature of the to-be-measured piece. After the driver cools the to-be-tested part, and after the temperature of the to-be-tested part is lower than the second preset temperature, the temperature signal is displayed normally in the display module 50, and the alarm signal does not appear any more, so that the driver can continue the vehicle test conveniently.
Further, the temperature detection method in the vehicle test further comprises the following steps: when the display module 50 does not display the temperature signal but only displays the alarm signal, the diagnostic apparatus is connected with the CAN transceiver module 23 through the CAN line 60 to perform diagnosis. When the display module 50 displays an error, namely the temperature signal is not displayed and only the alarm signal is displayed, or the temperature is displayed to exceed the first preset temperature value but not the alarm signal, or the temperature is displayed in a normal range but the alarm signal is displayed, the temperature monitoring device in the vehicle test is overhauled in time through the diagnostic instrument, and the test misalignment caused by the fact that the fault of the temperature monitoring device in the vehicle test is not removed in time is avoided.
Further, the temperature detection method in the vehicle test further comprises the following steps: the notebook computer is connected with the CAN transceiving module 23 through the CAN line 60 so as to record the real-time temperature of the piece to be tested. Real-time temperature record of shock absorber in the testing process is to the notebook through CAN line 60, has made things convenient for the analysis of later stage to the testing process.
Further, in an embodiment, in the temperature monitoring method in the vehicle test, the object to be measured is a shock absorber, the first preset temperature is 90 ℃, and the second preset temperature is 85 ℃.
According to the technical scheme, the temperature sensor 10 is arranged on the shock absorber of the to-be-tested piece, the temperature sensor 10 transmits a temperature signal to the receiving and decoding module 21 of the main controller 20 through a cable, the receiving and decoding module 21 analyzes the temperature signal and transmits the temperature signal to the operation module 22, the operation module 22 compares the temperature signal with a first preset temperature and a second preset temperature and transmits the temperature signal to the CAN transceiving module 23, and the temperature signal is transmitted to the display module 50 through the CAN transceiving module 23, so that a driver CAN observe the temperature change of the shock absorber of the to-be-tested piece conveniently in time through the display module 50, and the shock absorber CAN take cooling treatment measures in time. Therefore, compared with a method for judging the temperature of the shock absorber by depending on experience in the prior art, on one hand, the real-time temperature of the shock absorber can be observed through the display module 50, the shock absorber can be subjected to cooling treatment in time, and the problems of oil seal damage, oil leakage failure and the like caused by overhigh temperature of the shock absorber are avoided, so that frequent replacement of the shock absorber is avoided, and the test cost is saved; on the other hand, the shock absorber is timely cooled, the problem that the shock absorber is too long in cooling time after being too high in temperature and then required to be cooled is solved, and the efficiency of a vehicle test is improved.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A temperature monitoring device in a vehicle test, comprising:
the temperature sensor is attached to a to-be-detected piece of the vehicle and used for monitoring the real-time temperature of the to-be-detected piece;
the main controller comprises a receiving and decoding module, an operation module, a CAN (controller area network) transceiver module and a power module, wherein the receiving and decoding module is connected with the temperature sensor and is used for receiving and processing a temperature signal transmitted by the temperature sensor; the operation module is provided with a first preset temperature and a second preset temperature, the first preset temperature is higher than the second preset temperature, and the operation module compares the temperature signal transmitted by the receiving and decoding module with the first preset temperature and the second preset temperature; the CAN receiving and transmitting module receives the temperature signal compared by the operation module; the power supply module is used for being connected with an ignition device and a battery device of the vehicle to provide electric energy for the main controller; and
the display module is connected with the CAN transceiving module and used for receiving and displaying the temperature signal in real time;
when the temperature monitored by the temperature sensor is higher than the first preset temperature, the display module displays the real-time temperature and the alarm signal of the piece to be measured; and when the temperature monitored by the temperature sensor is lower than a second preset temperature, the display module displays the real-time temperature of the piece to be detected.
2. The temperature monitoring device in vehicle test according to claim 1, wherein the temperature monitoring device in vehicle test further comprises a CAN line, one end of which is connected with the CAN transceiver module, and when the display module does not display temperature signals but only displays alarm signals, the other end of the CAN line is connected with a diagnostic instrument for diagnosing the temperature monitoring device in vehicle test.
3. The temperature monitoring device in the vehicle test according to claim 1, wherein the temperature monitoring device in the vehicle test further comprises a CAN line, one end of the CAN line is connected with the CAN transceiver module, and the other end of the CAN line is connected with a notebook computer and is used for recording the real-time temperature of the piece to be tested.
4. The temperature monitoring device in vehicle testing according to claim 1, wherein the first preset temperature is 90 ℃ and the second preset temperature is 85 ℃.
5. The temperature monitoring device in vehicle testing according to claim 1, wherein the member under test is a shock absorber.
6. The temperature monitoring device in vehicle testing according to claim 5, wherein said shock absorbers include a first shock absorber, a second shock absorber, a third shock absorber, and a fourth shock absorber, and said temperature sensors include a first temperature sensor provided at a lower portion of said first shock absorber, a second temperature sensor provided at a lower portion of said second shock absorber, a third temperature sensor provided at a lower portion of said third shock absorber, and a fourth temperature sensor provided at a lower portion of said fourth shock absorber.
7. A temperature monitoring method in a vehicle test is characterized by comprising the following steps:
the method comprises the following steps that firstly, a temperature sensor is attached to a to-be-detected piece of a vehicle, the output end of the temperature sensor is connected with a receiving and decoding module of a main controller, an operation module of the main controller is provided with a first preset temperature and a second preset temperature, a CAN (controller area network) transceiver module of the main controller is connected with a display module, and a power supply module of the main controller is connected with an ignition device and a battery device of the vehicle;
step two, the temperature sensor transmits the real-time temperature of the piece to be detected to the receiving and decoding module, the receiving and decoding module analyzes and processes the temperature signal, and the operation module compares the analyzed temperature signal;
when the temperature exceeds a first preset temperature, a temperature signal is transmitted to a display module through a CAN (controller area network) transceiver module, and the display module displays the real-time temperature and an alarm signal of the piece to be measured;
and step four, when the temperature is lower than a second preset temperature, transmitting a temperature signal to a display module through a CAN (controller area network) transceiver module, and displaying the real-time temperature of the piece to be measured by the display module.
8. The method for monitoring temperature in a vehicle test according to claim 7, wherein the method for detecting temperature in a vehicle test further comprises the steps of:
when the display module does not display the temperature signal and only displays the alarm signal, the diagnostic instrument is connected with the CAN transceiver module through a CAN line so as to diagnose.
9. The method for monitoring temperature in a vehicle test according to claim 7, wherein the method for detecting temperature in a vehicle test further comprises the steps of:
the notebook computer is connected with the CAN transceiving module through a CAN line so as to record the real-time temperature of the piece to be tested.
10. The method of monitoring temperature in a vehicle test according to any one of claims 7 to 9, wherein the member under test is a shock absorber, the first preset temperature is 90 ℃, and the second preset temperature is 85 ℃.
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