Calibration hanging plate, calibration device and calibration method

Abstract

The invention provides a calibration hanging plate, a calibration device and a calibration method. The calibration hanging plate is mounted on a vehicle body to detect an environment; the calibration hanging plate comprises a calibration area which is in a cuboid shape and is made of metal materials. The two auxiliary areas are located at the two ends of the calibration area respectively and connected with the calibration area; the auxiliary area is made of a non-metal material; a measuring pin is formed on the auxiliary area close to the calibration area; and the measuring pin is electrically connected with the calibration area and is used for being externally connected with a measuring module so as to detect the resistance of the calibration area. According to the calibration hanging plate, the calibration device and the calibration method provided by the invention, the technical problem that the automobile corrosion amount in different regional climate environments is difficult to collect is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, in particular to a calibration hanging plate, a calibration device and a calibration method. BACKGROUND

[0002] Corrosion performance is an important quality requirement affecting the appearance, function and safety of automobiles. With the acceleration of domestic automobile export, different needs of overseas markets make the automobile corrosion prevention requirements gradually improve, and domestic automobile enterprises urgently need to accurately collect the corrosion amount of automobiles in different regional climate environments.

[0003] The existing calibration hanging plate usually uses the weight method or the thinning method to calibrate the corrosion amount, and the data can be collected only after the hanging plate is recovered, which leads to a long data collection interval and the need to recover the hanging plate on site. This method brings great inconvenience to the collection of corrosion amount in overseas markets and cannot meet the practical needs of automobile enterprises to quickly calibrate the target market corrosion prevention requirements and provide quality assurance for automobile export. Therefore, there is room for improvement. SUMMARY

[0004] The present application provides a calibration hanging plate, a calibration device and a calibration method to solve the technical problem of difficult collection of automobile corrosion amount in different regional climate environments.

[0005] The present application provides a calibration hanging plate installed on a vehicle body to detect the environment, comprising: a calibration area in the shape of a rectangular parallelepiped made of metal; two auxiliary areas located at both ends of the calibration area and connected with the calibration area; the auxiliary areas are made of non-metallic materials; a measurement pin formed on the auxiliary area close to the calibration area; the measurement pin is electrically connected with the calibration area and used to externally connect a measurement module to detect the resistance of the calibration area.

[0006] In an embodiment of the present application, the shape of the auxiliary area is adapted to the shape of the calibration area at the connection between the auxiliary area and the calibration area.

[0007] In an embodiment of the present application, the end of the auxiliary area in the direction away from the calibration area is a chamfer structure; In the direction towards the calibration area, the end of the auxiliary area is an arc structure.

[0008] In an embodiment of the present application, a hanging hole is further formed on the auxiliary area, the hanging hole is located on one side of the auxiliary area in the direction away from the calibration area, and the hanging hole cooperates with a hook on the vehicle body of the vehicle.

[0009] In an embodiment of the present application, a protective layer is sprayed on the surface of the auxiliary area.

[0010] The application further provides a calibration device, comprising a calibration hanger and a measurement module, wherein the measurement module comprises: a resistance measurement unit connected with the two measurement pins respectively, used for measuring the resistance of the calibration area; a control unit used for obtaining the resistance of the calibration area, and calculating the corresponding environmental corrosion amount according to the size parameters of the calibration area and the corresponding resistance.

[0011] In an embodiment of the application, the size parameters comprise length data, width data and initial thickness data. The control unit is further used for calculating the thickness data of the calibration area according to the length data, the width data, the resistivity of the calibration area and the corresponding resistance. The control unit is further used for calculating the difference between the initial thickness data and the thickness data to obtain the corresponding environmental corrosion amount. The control unit is further connected with a vehicle machine, and the resistance and the corresponding environmental corrosion amount are uploaded to the cloud through the vehicle machine.

[0012] In an embodiment of the application, the calculation formula of the environmental corrosion amount is: wherein, represents the environmental corrosion amount, represents the initial thickness data, represents the resistivity, represents the length data, represents the width data, represents the resistance.

[0013] In an embodiment of the application, the calibration device further comprises: a storage unit used for storing the resistance and the corresponding environmental corrosion amount; a communication unit used for reading the resistance and the corresponding environmental corrosion amount stored in the storage unit, and remotely sending the resistance and the corresponding environmental corrosion amount to an external receiving device.

[0014] The application further provides a calibration method, comprising: installing a calibration hanger on a vehicle body; measuring the resistance of a calibration area of the calibration hanger; calculating the corresponding environmental corrosion amount according to the size parameters of the calibration area and the corresponding resistance.

[0015] The beneficial effects of the present application: by setting the measurement pin in electrical connection with the calibration area, and cooperating the measurement pin with the measurement module, the resistance of the calibration area can be directly measured, without the need to collect the hanging plate on site and analyze by weight or thinning method as in the traditional calibration hanging plate, which not only saves the travel and labor cost of collecting the hanging plate on site, but also shortens the data collection interval, realizes the timely acquisition of corrosion related data; at the same time, it can help domestic automobile enterprises to conveniently obtain the environmental corrosion data of target markets at home and abroad, meet the rapid calibration of target market corrosion prevention requirements, provide support for automobile export quality assurance and whole vehicle corrosion test, and adapt to the improved corrosion prevention requirements of domestic automobiles after export. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. It is apparent that the drawings described below are only some embodiments of the present application, and other drawings can be obtained from these drawings without creative labor for those skilled in the art.

[0017] In the drawings: Figure 1 A schematic diagram of the calibration hanging plate provided by an embodiment of the present application; Figure 2 A schematic diagram of the calibration device provided in an embodiment of the present application; Figure 3 A flowchart of the calibration method provided in an embodiment of the present application.

[0018] The reference signs are as follows: 10, calibration area; 20, auxiliary area; 21, hanging hole; 22, measurement pin; 30, resistance measurement unit; 40, control unit; 50, storage unit; 60, communication unit; 70, vehicle machine. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present specification. The present application can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0020] It is to be understood that the figures provided in the following embodiments are only schematically illustrating the basic concept of the present application, and the figures only show the components related to the present application, but are not drawn according to the number, shape and size of the components in actual implementation, and the type, number and ratio of the components in actual implementation can be arbitrarily changed, and the layout type of the components can be more complex.

[0021] In the following description, a large number of details are discussed in order to provide a more thorough explanation of the embodiments of the application, however, it is apparent to those skilled in the art that the embodiments of the application can be implemented without these specific details, and in other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in the form of details, in order to avoid making the embodiments of the application difficult to understand.

[0022] Please refer to Figure 1 The present application discloses a calibration hanging plate, which can be applied to the calibration of the corrosion amount of the automobile operating environment in different target markets at home and abroad when domestic automobile enterprises develop different target markets at home and abroad. The calibration hanging plate can be carried on various operating vehicles such as commercial taxis, trucks or dealer operation and maintenance vehicles, and can be carried on different positions of the vehicle body to obtain the environmental corrosion amount of different positions. The calibration hanging plate can include a calibration area 10 and an auxiliary area 20.

[0023] In some embodiments, the shape of the calibration area 10 is a cuboid, which serves as the core area for sensing environmental corrosion. The calibration area 10 can be made of metal material, specifically, the material selection is consistent with the material of the vehicle body sheet metal, for example, made of DC01 cold rolled steel sheet, so as to ensure that the corrosion characteristics of the calibration area 10 are consistent with the actual corrosion characteristics of the vehicle body sheet metal, thereby ensuring the accuracy of the subsequent environmental corrosion amount calibration result.

[0024] In some embodiments, the thickness of the calibration area 10 can be between 0.05cm and 0.15cm, for example, it can be 0.05cm, 0.1cm, 0.15cm, etc. The length of the calibration area 10 can be between 8cm and 12cm, for example, it can be 8cm, 10cm, 12cm, etc. The width of the calibration area 10 can be between 0.5cm and 1.5cm, for example, it can be 0.5cm, 1cm, 1.5cm, etc. Through such size design, the calibration area 10 can not only meet the effective collection of environmental corrosion signals, but also facilitate the cooperation and installation with the auxiliary area and the measurement module.

[0025] In some embodiments, in order to avoid the calibration area 10 from being corroded by non-target environmental factors and ensure the stability of the initial state, a high-temperature-resistant PET tape is used to fully cover and protect the metal surface of the calibration area 10. When it is necessary to formally carry out the environmental corrosion amount calibration work, the high-temperature-resistant PET tape covering the surface of the calibration area 10 is removed, so that the metal surface of the calibration area 10 is directly exposed to the target environment and accurately receives the environmental corrosion effect, thereby providing reliable corrosion samples for subsequent corrosion amount calculation through resistance measurement.

[0026] In some embodiments, the number of auxiliary areas 20 can be two, and the two auxiliary areas 20 are respectively connected with the opposite ends of the calibration area 10, and the two auxiliary areas 20 are both installed on the vehicle body. The shape of the auxiliary area 20 can be a cuboid, which is used to realize the stable connection between the calibration area 10 and the vehicle body, and also provides basic support for the electrical connection between the measurement module and the calibration area 10. The material of the auxiliary area 20 can be a non-metal material.

[0027] In some embodiments, the thickness of the auxiliary area 20 can be between 0.05 cm and 0.15 cm, for example, 0.05 cm, 0.1 cm, 0.15 cm, etc. The length of the auxiliary area 20 can be between 1 cm and 3 cm, for example, 1 cm, 2 cm, 3 cm, etc. The width of the auxiliary area 20 can be between 1 cm and 3 cm, for example, 1 cm, 2 cm, 3 cm, etc.

[0028] In some embodiments, a hanging hole 21 is formed on each auxiliary area 20. The hanging hole 21 can be located on the side of the auxiliary area 20 away from the calibration area 10, for example, it can be opened at a position 0.5 cm away from the edge of the auxiliary area 20, or it can be located at other positions. The diameter of the hanging hole 21 can be 0.5 cm or other sizes. The hanging hole 21 cooperates with the pre-set hook on the vehicle body, and through the embedding of the hanging hole 21 and the hook, the auxiliary area 20 and the calibration area 10 connected therewith can be firmly fixed on the vehicle body, avoiding displacement or falling of the calibration hanging plate during vehicle driving, and ensuring the stability of the corrosion amount calibration process.

[0029] In some embodiments, a measurement pin 22 is further formed on each auxiliary area 20, which can be located on the side of the auxiliary area 20 facing the calibration area 10 and at the connection between the auxiliary area 20 and the calibration area 10. The diameter of the measurement pin 22 is 0.2 cm, and can also be other sizes. The measurement pin 22 can be directly electrically connected with the calibration area 10, while the measurement pin 22 is connected with a lead wire by soldering, and the end of the lead wire away from the measurement pin 22 is connected with a measurement module, so as to establish an electrical signal path between the measurement module and the calibration area 10, and ensure that the measurement module can accurately obtain the resistance of the calibration area 10 through the measurement pin 22. The measurement module can be used to measure and send the resistance of the calibration area 10.

[0030] In some embodiments, at the connection between the auxiliary area 20 and the calibration area 10, the shape of the auxiliary area 20 is adapted to the shape of the calibration area 10. This adaptive design can make the connection between the two areas more compact, avoid the retention of impurities or moisture in the connection gap, and thus prevent additional corrosion at the gap, ensure that the subsequent environmental corrosion amount calibration is only for the calibration area 10, and improve the accuracy of the calibration data.

[0031] In some embodiments, in the direction away from the calibration area 10, the end of the auxiliary area 20 is a chamfer structure, and the edge of the auxiliary area 20 is polished. The cooperation of the chamfer structure and the edge polishing can eliminate the sharp edge of the end of the auxiliary area 20, avoid the sharp edge corrosion due to stress concentration or contact with corrosive media during vehicle driving, and also reduce the risk of being cut by the sharp edge during installation or maintenance by personnel.

[0032] In some embodiments, in the direction toward the calibration area 10, the end of the auxiliary area 20 is an arc-shaped structure, which can achieve smooth transition between the auxiliary area 20 and the calibration area 10, and also avoid the formation of sharp edges at the transition, further prevent additional corrosion of the non-target area, and ensure that the corrosion effect is only concentrated on the calibration area 10.

[0033] In some embodiments, the surface of the auxiliary area 20 is further provided with a protective layer. The specific protection process includes two steps: first, the auxiliary area 20 body is electrophoretically protected to form a basic protective layer; second, after the lead wire is welded to the measurement pin 22, a powder protective layer with a thickness of 100 μm is uniformly sprayed on the entire auxiliary area 20 and the welding part of the measurement pin 22. The cooperation of the two protective layers can completely isolate the auxiliary area 20 from the external corrosive environment, avoid the corrosion of the auxiliary area 20 or the measurement pin 22 affecting the electrical signal transmission, and ensure that the measurement module can accurately obtain the resistance of the calibration area 10 through the measurement pin 22.

[0034] Please refer to Figure 2The application further discloses a calibration device, which can comprise a calibration hanging plate, a measuring module, a storage unit 50 and a communication unit 60. The measuring module can comprise a resistance measuring unit 30 and a control unit 40.

[0035] In some embodiments, the resistance measuring unit 30 can be a resistance meter. Two measuring terminals of the resistance measuring unit 30 are connected with two measuring pins 22 on the auxiliary area 20 one by one, so as to measure the resistance of the calibration area 10. Through the connection mode, a complete electrical signal path is formed between the resistance measuring unit 30 and the calibration area 10, and the resistance change signal of the calibration area 10 caused by environmental corrosion can be directly collected, so as to avoid measurement errors caused by improper connection mode.

[0036] In some embodiments, the resistance measuring unit 30 can be connected with the control unit 40. When it is necessary to measure the resistance of the calibration area 10, the control unit 40 sends a measurement instruction to the resistance measuring unit 30. After receiving the instruction, the resistance measuring unit 30 immediately starts a resistance measurement program to detect the current resistance of the calibration area 10. After the measurement is completed, the resistance measuring unit 30 feeds back the detected resistance to the control unit 40 in real time, so that the control unit 40 can timely obtain the resistance of the calibration area 10.

[0037] In some embodiments, the control unit 40 can be used to obtain the resistance of the calibration area 10, and calculate the corresponding environmental corrosion amount according to the size parameters of the calibration area 10 and the corresponding resistance.

[0038] In some embodiments, the size parameters include length data, width data and initial thickness data. The control unit 40 is further configured to calculate the thickness data of the calibration area 10 according to the length data, the width data, the resistivity of the calibration area 10 and the corresponding resistance.

[0039] In some embodiments, in order to continuously track the corrosion state of the calibration area 10, the control unit 40 sends a measurement instruction to the resistance measuring unit 30 according to a pre-set period, which can be defined by the actual calibration demand, for example, once a week or once a month. After the resistance measuring unit 30 completes the resistance measurement of the calibration area 10, the measured resistance is fed back to the control unit 40, and the control unit 40 receives and temporarily stores the resistance, so as to provide a basis for subsequent calculation.

[0040] In some embodiments, the control unit 40 is further configured to calculate the difference between the initial thickness data and the thickness data, so as to obtain the corresponding environmental corrosion amount. The calculation formula of the environmental corrosion amount is: wherein, represents the environmental corrosion amount, represents the initial thickness data, represents the resistivity, Length data, Width data, Resistance data.

[0041] In some embodiments, after the bare metal of the calibration area 10 is corroded by the environment, the conductive ferrous alloy is oxidized into a non-conductive iron-based oxide, the conductive part is thinned, the resistance is increased, and the thickness change can be accurately deduced through the resistance change. By subtracting the pre-stored initial thickness data from the above calculated thickness data, the difference obtained is the sheet metal thinning amount of the calibration area 10 caused by environmental corrosion, which directly corresponds to the environmental corrosion amount of the target environment, realizing the conversion from resistance to corrosion amount.

[0042] In some embodiments, the storage unit 50 is used to store the resistance and the corresponding environmental corrosion amount. When the control unit 40 obtains the resistance of the calibration area 10 through the resistance measuring unit 30 and calculates the corresponding environmental corrosion amount, it will immediately transmit the two sets of data to the storage unit 50 for storage; at the same time, the storage unit 50 will store the resistance, environmental corrosion amount and corresponding collection time of each collection in association to ensure the integrity and traceability of the data, and provide a basis for subsequent data calling In some embodiments, the control unit 40 is also connected with the vehicle machine, and the resistance and the corresponding environmental corrosion amount are uploaded to the cloud through the vehicle machine. After the storage unit 50 completes the data storage, the control unit 40 will periodically read the resistance and the corresponding environmental corrosion amount from the storage unit 50 and upload these data to the cloud through the vehicle machine; the tester does not need to contact the calibration hanging plate in the field, but only needs to access the cloud system to call the resistance and the corresponding environmental corrosion amount of the calibration area 10 at different time nodes at any time, and quickly master the corrosion condition of the target area.

[0043] In some embodiments, the communication unit 60 is used to read the resistance and the corresponding environmental corrosion amount stored in the storage unit 50 and remotely send it to the external receiving device. When the tester needs to obtain the corrosion data at a certain time, a remote communication can be established with the communication unit 60 through a mobile operator. After receiving the communication request, the communication unit 60 will immediately activate the control unit 40. After the control unit 40 is activated, it will read the current latest resistance and the corresponding environmental corrosion amount from the storage unit 50 and feed back these data to the communication unit 60. After receiving the data, the communication unit 60 will remotely send it to the external receiving device used by the tester, so that the tester can obtain the corrosion data of the calibration area 10 in real time, further improving the flexibility and timeliness of data acquisition.

[0044] Please refer to Figure 3 The present application also discloses a calibration method, which can be applied in the calibration device, and can include the following steps: Step S10, install the calibration hanger on the vehicle body; Step S20, measure the resistance of the calibration area of the calibration hanger; Step S30, calculate the corresponding environmental corrosion amount according to the size parameter of the calibration area and the corresponding resistance.

[0045] It can be seen that, in the above scheme, by setting the measurement pin electrically connected with the calibration area and cooperating the measurement pin with the measurement module, the resistance of the calibration area can be directly measured, without the need of on-site collection of the hanger and analysis by weight method or thinning method after the hanger is recovered, which not only saves the travel and labor cost by avoiding the on-site collection of the hanger, but also shortens the data collection interval to realize the timely acquisition of the corrosion related data. Meanwhile, it can help the domestic automobile enterprises to conveniently acquire the environmental corrosion amount data of the target markets at home and abroad, meet the rapid calibration of the anticorrosion requirements of the target markets, provide support for the quality guarantee of automobile export and the anticorrosion test of the whole vehicle, and adapt to the improved anticorrosion requirements of the domestic automobiles after export.

[0046] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A calibration mounting plate, characterized in that, Mounted on the vehicle body to detect the environment; the calibration mount includes: The calibration area is rectangular in shape and made of metal. Two auxiliary areas are located at opposite ends of the calibration area and connected to the calibration area; the auxiliary areas are made of non-metallic material. Measurement pins are formed on the auxiliary area near the calibration area; the measurement pins are electrically connected to the calibration area and are used to connect an external measurement module to detect the resistance of the calibration area.

2. The calibration mounting plate according to claim 1, characterized in that, At the junction of the auxiliary region and the calibration region, the shape of the auxiliary region is adapted to the shape of the calibration region.

3. The calibration mounting plate according to claim 2, characterized in that, In the direction away from the calibration area, the ends of the auxiliary area have a chamfered structure; The end of the auxiliary region is arc-shaped in the direction toward the calibration area.

4. The calibration mounting plate according to claim 1, characterized in that, The auxiliary area also has a hanging hole, which is located on one side of the auxiliary area in a direction away from the calibration area; the hanging hole cooperates with a hook on the vehicle body.

5. The calibration mounting plate according to claim 1, characterized in that, The surface of the auxiliary area is coated with a protective layer.

6. A calibration device, characterized in that, Includes the calibration mounting plate and measurement module as described in any one of claims 1 to 5, wherein the measurement module comprises: A resistance measurement unit is connected to the two measurement pins respectively, and is used to measure the resistance of the calibration area; The control unit is used to acquire the resistance of the calibration area and calculate the corresponding environmental corrosion amount based on the size parameters of the calibration area and the corresponding resistance.

7. The calibration device according to claim 6, characterized in that, The dimensional parameters include length data, width data, and initial thickness data; The control unit is also configured to calculate the thickness data of the corresponding calibration area based on the length data, the width data, the resistivity of the calibration area, and the corresponding resistance. The control unit is also used to calculate the difference between the initial thickness data and the thickness data to obtain the corresponding environmental corrosion amount; The control unit is also connected to the vehicle's infotainment system and uploads the resistance and corresponding environmental corrosion levels to the cloud via the infotainment system.

8. The calibration device according to claim 7, characterized in that, The formula for calculating the environmental corrosion rate is: ,in, Indicates the amount of environmental corrosion. This represents the initial thickness data. Represents resistivity. Represents length data, Represents width data. Indicates resistance.

9. The calibration device according to claim 6, characterized in that, The calibration device further includes: The storage unit is used to store the resistance and the corresponding environmental corrosion level. The communication unit is used to read the resistance and corresponding environmental corrosion amount stored in the storage unit and remotely send them to an external receiving device.

10. A calibration method, characterized in that, The calibration method includes: Install the calibration mounting plate on the vehicle body; Measure the resistance of the calibration area of ​​the calibration plate; The corresponding environmental corrosion rate is calculated based on the size parameters of the calibration area and the corresponding resistance.

Images