Intelligent transmission shaft assembly, monitoring method thereof and vehicle

Abstract

The invention relates to an intelligent transmission shaft assembly and a monitoring method thereof and a vehicle, the intelligent transmission shaft assembly comprises a transmission shaft and a detection assembly, the transmission shaft comprises at least two shaft fork units, at least two cross shaft assemblies and two flange forks, each shaft fork unit comprises a shaft part and a fork part which are connected, a spline pair is formed between the two shaft parts, and the cross shaft assemblies are connected with the two shaft fork units. The spline pair comprises a spline sleeve and a spline shaft, the two fork parts are in transmission connection with the two flange forks through the two cross shaft assemblies respectively, and each flange fork is configured to be connected with a driving wheel; the detection assembly comprises at least three temperature sensors, at least one acceleration sensor and a controller, the three temperature sensors are arranged on the two fork parts and the spline shaft respectively, the acceleration sensor is arranged on the transmission shaft, and the controller is electrically connected with the acceleration sensor and the temperature sensors. Through cooperation of the acceleration sensor and the temperature sensor, the motion state of the transmission shaft is confirmed in real time, faults are avoided, and safe operation of the whole vehicle is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an intelligent sensing drive shaft and a detection method thereof, as well as a vehicle. Background Art

[0002] The driveshaft is a key component in vehicle power transmission, transmitting torque and rotational motion. In today's aftermarket, driveshaft failures can lead to vehicle breakdowns and even downtime, which can only be prevented through routine maintenance.

[0003] With the development of the "five modernizations" of complete vehicles, the problem of drive shaft failure has become increasingly prominent in the complete vehicle aftermarket. How to effectively monitor the operating status of the drive shaft and ensure the safe operation of the vehicle is a difficult problem that we urgently need to solve. Summary of the Invention

[0004] Based on the above description, the present invention provides an intelligent sensing drive shaft to solve the problem that the existing drive shaft cannot avoid failure in advance.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: An intelligent transmission shaft assembly includes a transmission shaft and a detection component, wherein the transmission shaft includes at least two shaft fork units, at least two cross-shaft assemblies and two flange forks, each of the shaft fork units includes a connected shaft portion and a fork portion, and a spline pair is formed between the two shaft portions, the spline pair includes a spline shaft and a spline sleeve, the two forks are respectively connected to the two flange forks through the two cross-shaft assemblies, and each flange fork is configured to be connected to a drive wheel; the detection component includes at least three temperature sensors and at least one acceleration sensor, the three temperature sensors are respectively arranged at the two forks and the spline pair, and the acceleration sensor is arranged on the transmission shaft.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows: Furthermore, the two fork parts are each formed with a cavity, and the bottom wall of each cavity is recessed with a mounting groove, and the two fork parts are a spline fork and a universal joint fork, the spline fork is connected to the spline shaft, and the universal joint fork is connected to the spline sleeve; The two temperature sensors are respectively installed in the two installation grooves and are respectively arranged toward the two cross-shaft assemblies, and the acceleration sensor is arranged in one of the installation grooves.

[0007] Furthermore, a mounting hole is recessed on the end surface of the spline shaft, the mounting hole is communicated with the mounting groove provided on the spline fork, and the mounting hole is used to accommodate another temperature sensor.

[0008] The present invention also provides a monitoring method for an intelligent transmission shaft assembly, which is applied to the intelligent transmission shaft assembly. The monitoring method comprises the following steps: Obtaining a temperature reading of each of the temperature sensors and an acceleration reading of the acceleration sensor; A corresponding abnormal result is obtained according to the temperature indication and / or the acceleration indication.

[0009] Furthermore, the two fork parts are a spline fork and a universal joint fork, the spline fork is connected to the spline shaft, the universal joint fork is connected to the spline sleeve, the mounting groove of the spline fork is connected to the mounting hole, and the two cross shaft assemblies are a first transmission cross shaft assembly connected to the spline fork in a transmission manner, and a second transmission cross shaft assembly connected to the universal joint fork in a transmission manner; The step of obtaining the temperature reading of each temperature sensor and the acceleration reading of the acceleration sensor comprises: The temperature indications of the three temperature sensors are divided into a first temperature indication corresponding to the spline fork, a second temperature indication corresponding to the spline shaft, and a third temperature indication corresponding to the universal joint fork.

[0010] Furthermore, the step of obtaining a corresponding abnormal result according to the temperature indication and / or the acceleration indication further includes: When the first temperature indication or the second temperature indication shows an upward trend and the acceleration indication shows an upward trend, it is obtained that the corresponding first transmission cross shaft assembly or the second transmission cross shaft assembly is ablated.

[0011] Furthermore, when the first temperature indication or the second temperature indication shows an upward trend, the step of obtaining the corresponding ablation of the first transmission cross shaft assembly or the second transmission cross shaft assembly includes: When the first temperature indication or the second temperature indication rises to a first set value, ablation occurs in the first transmission cross shaft assembly or the second transmission cross shaft assembly; When the first temperature indication or the second temperature indication rises to a second set value, the second set value is greater than the first set value, and the acceleration indication shows an upward trend, the first transmission cross shaft assembly or the second transmission cross shaft assembly fails.

[0012] Furthermore, the step of obtaining a corresponding abnormal result according to the temperature indication and / or the acceleration indication further includes: When the third temperature indication and the acceleration indication are both on an upward trend, the spline pair is loose.

[0013] Furthermore, when the third temperature indication and the acceleration indication are both in an upward trend, the step of loosening the spline pair includes: When the third temperature indication shows an upward trend and is less than a third set value, the spline pair abnormal sound is obtained; When both the third temperature indication and the acceleration indication show an upward trend and the third temperature indication is greater than a third set value, it is determined that the spline pair is loose.

[0014] The present invention also provides a vehicle comprising the intelligent transmission shaft assembly.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: The two fork parts are a spline fork connected to the spline shaft and a universal yoke connected to the spline sleeve. Abnormal vibration of the drive shaft is detected by the acceleration sensor, indicating that at least one of the spline fork, the universal yoke, and the spline pair is loose. Three temperature sensors are respectively corresponding to the spline fork, the universal yoke, and the spline pair, and the temperature readings of the three temperature sensors are divided into a first temperature reading corresponding to the spline fork, a second temperature reading corresponding to the universal yoke, and a third temperature reading corresponding to the spline pair. If the first temperature reading, the second temperature reading, and the third temperature reading show an increasing trend, it indicates that the spline fork and the universal yoke have erosion, and the spline pair has abnormal wear. The controller is configured to communicate with a display structure of the vehicle, so that the display structure can display abnormal results and remind the driver to inspect the vehicle. In this way, the acceleration sensor and the three temperature sensors cooperate to confirm the motion status of the drive shaft in real time, avoid malfunctions, and ensure the safe operation of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an intelligent transmission shaft assembly provided by an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the shaft fork unit in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the spline fork in an embodiment of the present invention; Figure 4 Schematic diagram of the structure of the cross shaft assembly in an embodiment of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Drive shaft; 11. Shaft fork unit; 111. Shaft; 1111. Spline shaft; 1112. Spline sleeve; 1113. Mounting hole; 112. Fork; 1121. Spline fork; 1122. Universal joint fork; 113. Mounting slot; 12. Cross shaft assembly; 121. Cross shaft; 122. Bearing assembly; 1221. Dust cover; 1222. Oil seal; 1223. Retaining ring; 1224. Needle roller; 1225. Gasket; 1226. Bushing; 13. Flange fork; 14. Sheath assembly; 15. Shaft tube; 16. Balance plate; 2. Detection component; 21. Temperature sensor; 22. Acceleration sensor; 23. Integrated module; 231. Charging port. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0020] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0021] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0022] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0023] Please refer to Figures 1 to 3 The present invention provides an intelligent transmission shaft assembly, including a transmission shaft 1 and a detection component 2, wherein the transmission shaft 1 includes at least two shaft fork units 11, at least two cross shaft assemblies 12 and two flange forks 13, each of the shaft fork units 11 includes a connected shaft portion 111 and a fork portion 112, and a spline pair is formed between the two shaft portions 111, the spline pair includes a spline shaft 1111 and a spline sleeve 1112, the two forks 112 are respectively connected to the two flange forks 13 through the two cross shaft assemblies 12, and each flange fork 13 is configured to be connected to a driving wheel; the detection component 2 includes at least three temperature sensors 21 and at least one acceleration sensor 22 and a controller, the three temperature sensors 21 are respectively arranged at the two forks 112 and the spline pair, the acceleration sensor 22 is arranged on the transmission shaft 1, and the controller is electrically connected to the acceleration sensor 22 and each temperature sensor 21.

[0024] In this embodiment, the two forks 112 are divided into a spline fork 1121 connected to the spline shaft 1111 and a universal joint fork 1122 connected to the spline sleeve 1112. The acceleration sensor 22 detects abnormal vibration of the transmission shaft 1, and at least one of the spline fork 1121, the universal joint fork 1122, and the spline pair is loose. The three temperature sensors 21 correspond to the spline fork 1121, the universal joint fork 1122, and the spline pair, respectively, and the temperature readings of the three temperature sensors 21 are divided into a first temperature reading corresponding to the spline fork 1121, a second temperature reading corresponding to the universal joint fork 1122, and a third temperature reading corresponding to the spline pair; if the first temperature reading, the second temperature reading, and the third temperature reading show an upward trend, ablation occurs at the spline fork 1121 and the universal joint fork 1122, and abnormal wear occurs at the spline pair. The controller is used to communicate with the vehicle's display structure so that the display structure can display abnormal results and remind the driver to inspect the vehicle. In this way, through the cooperation of the acceleration sensor 22 and the three temperature sensors 21, the movement state of the drive shaft 1 can be confirmed in real time to avoid malfunctions and ensure the safe operation of the entire vehicle.

[0025] Specifically, each of the two forks 112 is formed with a cavity, and the bottom wall of each cavity is recessed with a mounting groove 113. The two forks 112 are divided into a spline fork 1121 and a universal joint fork 1122. The spline fork 1121 is connected to the spline shaft 1111, and the universal joint fork 1122 is connected to the spline sleeve 1112. The two temperature sensors 21 are respectively installed in the two mounting grooves 113 and are respectively arranged toward the two cross-shaft assemblies 12. The acceleration sensor 22 is installed in one of the mounting grooves 113. In this embodiment, the two cross-shaft assemblies 12 are divided into a first transmission cross-shaft assembly that is transmission-connected to the spline fork 1121, and a second transmission cross-shaft assembly that is transmission-connected to the universal joint fork 1122. The infrared probe of the temperature sensor 21, located within the mounting slot 113 of the spline fork 1121, faces the first transmission cross-shaft assembly. The infrared probe of the temperature sensor 21, located within the mounting slot 113 of the universal joint fork 1122, faces the second transmission cross-shaft assembly, thereby enabling detection of the temperatures of both cross-shaft assemblies 12. Furthermore, by providing two mounting slots 113 on the transmission shaft 1, the two temperature sensors 21 are mounted within the respective mounting slots 113, achieving internal placement of the two temperature sensors 21 and protecting them. This saves space and improves stability.

[0026] To mount the acceleration sensor 22 on the spline pair, in this embodiment, a mounting hole 1113 is recessed on the end surface of the spline shaft 1111. The mounting hole 1113 communicates with the mounting groove 113 provided on the spline fork 1121. The mounting hole 1113 accommodates another temperature sensor 21. The infrared probe of the temperature sensor 21 faces the wall of the mounting hole 1113, thereby being able to detect the temperature of the spline pair.

[0027] It should be noted that, in this embodiment, referring to Figures 1 to 3 The detection component 2 also includes two integrated modules 23, both of which are electrically connected to the controller. Each integrated module 23 includes a power supply, a charging interface 231, a wireless data transmitter, and a data processor. The charging interface is electrically connected to the power supply. The wireless data transmitter is used to wirelessly transmit the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22 to data processing and storage in the cab. The data processor is used to preliminarily process the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22 to obtain the increase in the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22. The temperature reading and the acceleration reading are both monitored and analyzed through data change values.

[0028] In this embodiment, the two integrated modules 23 are respectively located in the two mounting slots 113, and each charging port 231 faces the notch of the corresponding mounting slot 113 to facilitate charging the power supply. Of the three temperature sensors 21, two are electrically connected to the integrated modules 23 located in the mounting slot 113 of the spline fork 1121, while another is electrically connected to the integrated module 23 located in the mounting slot 113 of the yoke 1122. The other temperature sensor 21 is configured as an embedded thermocouple. This results in a rational design and compact layout.

[0029] In addition, in this embodiment, the acceleration sensors 22 are set to two, and the two acceleration sensors 22 are electrically connected to the two integrated modules 23 respectively, so that the two acceleration sensors 22 are redundant with each other, thereby making the intelligent transmission shaft assembly more stable and reliable. In the event that one of the acceleration sensors 22 is damaged, the other acceleration sensor 22 can operate, thereby improving stability and extending service life.

[0030] It should be noted that, referring to Figure 1 In this embodiment, the transmission shaft 1 also includes a sleeve assembly 14, a shaft tube 15 and a balance plate 16. The sleeve assembly 14 is connected to the spline fork 1121 and is sleeved on the periphery of the spline sleeve 1112. The shaft tube 15 is used to connect the universal joint fork 1122 and the spline sleeve 1112.

[0031] The present invention further provides a vehicle, comprising the intelligent transmission shaft assembly, and thus the vehicle comprises all the technical features of the intelligent transmission shaft assembly, the technical features of which are as described above and will not be elaborated upon here.

[0032] The present invention provides a monitoring method for an intelligent transmission shaft assembly, which is applied to the intelligent transmission shaft assembly. The monitoring method for the intelligent transmission shaft assembly includes the following steps: S10, obtaining the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22; S20. Obtain a corresponding abnormal result according to the temperature indication and / or the acceleration indication.

[0033] In this embodiment, the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22 are obtained, and the operating status of the transmission shaft 1 is monitored by monitoring the temperature reading of each temperature sensor 21 and the acceleration reading of the acceleration sensor 22. When the temperature reading of the temperature sensor 21 and the acceleration reading of the acceleration sensor 22 are abnormal, the corresponding abnormal structure is obtained, which is convenient for the driver to perform corresponding maintenance on the vehicle according to the abnormal results, avoid failure of the transmission shaft 1, and ensure normal and safe operation.

[0034] In this embodiment, the two cross shaft assemblies 12 are divided into a first transmission cross shaft assembly that is transmission-connected to the spline fork 1121 , and a second transmission cross shaft assembly that is transmission-connected to the universal joint fork 1122 .

[0035] The step S10 further includes: S101 , dividing the temperature readings of the three temperature sensors 21 into a first temperature reading corresponding to the spline fork 1121 , a second temperature reading corresponding to the spline shaft 1111 , and a third temperature reading corresponding to the universal joint fork 1122 .

[0036] Step S20 further includes: S201: When the first temperature indication or the second temperature indication shows an upward trend and the acceleration indication shows an upward trend, it is determined that the first transmission cross shaft assembly or the second transmission cross shaft assembly is ablated.

[0037] In this embodiment, the first transmission cross assembly is used as an example. When the first transmission cross assembly is ablated, the first temperature reading shows an upward trend, and the acceleration sensor 22 also shows an upward trend, indicating that the first transmission cross assembly is ablated, and the bearing of the first transmission cross assembly is loose, causing abnormal vibration of the transmission shaft 1 and vibration of the entire vehicle. The second transmission cross assembly is similarly handled and will not be described in detail here.

[0038] Furthermore, in this embodiment, step S201 includes: S2011: When the first temperature indication or the second temperature indication rises to a first set value, ablation occurs in the first transmission cross shaft assembly or the second transmission cross shaft assembly; S2012: When the first temperature indication or the second temperature indication rises to a second set value, the second set value is greater than the first set value, and the acceleration indication shows an upward trend, the first transmission cross shaft assembly or the second transmission cross shaft assembly fails.

[0039] It should be noted that, in this embodiment, referring to Figure 1 and Figure 4 The cross-shaft assembly 12 includes a cross-shaft 121 and at least four bearing assemblies 122. The four bearing assemblies 122 are rotatably connected to the four ends of the cross-shaft 121 in a one-to-one correspondence. Each bearing assembly 122 includes a dust cover 1221, an oil seal 1222, a retaining ring 1223, a needle roller 1224, a gasket 1225, and a sleeve 1226. The ablation damage of the cross-shaft assembly 12 occurs in three stages. In the first stage, the bearing assembly 122 of the cross-shaft 121 begins to ablate, generating high temperatures inside until the entire cross-shaft assembly 12 abscesses, damaging the rubber oil seal 1222 and dust cover 1221 of the cross-shaft assembly 12. In the second stage, as the vehicle continues to operate, the needle roller 1224 gradually falls off. During operation, the cross shaft 121 and the sleeve 1226 violently impact and collide, causing the sleeve 1226 to crack, break, and fall off. In the third stage, the cross shaft 121 and the corresponding fork 112 periodically impact, collide, and wear, and the fork 112 also suffers varying degrees of damage, until the cross shaft assembly 12 and the connected fork 112 fall off, causing the vehicle to stop. At the same time, the dislodged parts will impact and collide with other vehicle components, further damaging them. The ablation damage process of the bearing assembly 122 of the entire cross shaft assembly 12 gradually intensifies as the vehicle continues to operate, and has a certain time period.

[0040] In this embodiment, taking the first transmission cross shaft assembly as an example, when the first temperature reading rises to the first set value, and the difference between the first set value and the stable operating temperature reading of the first transmission cross shaft assembly is 5°C~15°C, the surface of the cross shaft 121 has changed color, that is, ablation has occurred, and the grease in the first transmission cross shaft assembly has turned black; at this time, new grease is added, and the temperature of the first transmission cross shaft assembly tends to stabilize. When the first temperature reading reaches the second set value, the difference between the second set value and the stable operating temperature reading is greater than 60°C, and the surface of the cross shaft 121 has severe peeling, the acceleration reading increases, and the first transmission cross shaft assembly has failed. The second transmission cross shaft assembly is similar and will not be described here.

[0041] In this embodiment, the abnormal vibration of the transmission shaft 1 causes the entire vehicle to shake. The fault is caused by loose bearings and loose spline pairs in the cross shaft assembly 12, which generate abnormal vibration. When the acceleration reading shows an upward trend, the transmission shaft 1 is vibrating abnormally.

[0042] The step S20 further includes: S202: When the third temperature indication and the acceleration indication are both on an upward trend, the spline pair is loose.

[0043] When the spline pair is loose, wear occurs between the spline shaft 1111 and the spline sleeve 1112, affecting the transmission of the transmission shaft 1. The transmission shaft 1 vibrates, the acceleration reading increases, and the wear generates heat, causing the third temperature reading to rise.

[0044] The step S202 includes: S2021: When the third temperature indication shows an upward trend and is less than a third set value, an abnormal sound of the spline pair is detected; S2022: When both the third temperature indication and the acceleration indication show an upward trend and the third temperature indication is greater than a third set value, it is determined that the spline pair is loose.

[0045] In this embodiment, the damage to the spline pair is caused by wear between the spline shaft 1111 and the spline sleeve 1112. The damage to the spline pair is also divided into three stages. In the first stage, the oil seal 1222 of the spline pair is intact, and the spline teeth are intact, but the grease on the surface of the spline teeth has dried and condensed. The transmission of the entire vehicle is normal, but the spline teeth have abnormal noises. Re-lubricating the grease allows normal use. In the second stage, the spline teeth are rounded, there is no grease or foreign matter on the spline teeth, and there is no shedding on the spline tooth surface. The gap at the spline is significantly increased, and torque can be transmitted, but large impact vibrations are generated during normal movement. In the third stage, the spline teeth are completely damaged and are in a flattened state. The inner and outer splines rotate relative to each other, and the entire vehicle exhibits transmission failure. At the same time, collisions and impact vibrations are generated at the spline teeth. In the first stage, the third temperature reading rises and the acceleration reading is stable. Re-lubricating the grease can ensure the normal operation of the drive shaft 1. In the second and third stages, the third temperature indication and the acceleration indication are on an upward trend, the spline pair is loose, and the third set value is 160°C.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent transmission shaft assembly, characterized in that: include: A transmission shaft (1) comprises at least two shaft fork units (11), at least two cross shaft assemblies (12) and two flange forks (13), each shaft fork unit (11) comprising a shaft portion (111) and a fork portion (112) connected to each other, a spline pair being formed between the two shaft portions (111), the spline pair comprising a spline shaft (1111) and a spline sleeve (1112), the two forks (112) being respectively connected to the two flange forks (13) via the two cross shaft assemblies (12), and each flange fork (13) being configured to be connected to a drive wheel; and, A detection component (2) comprises at least three temperature sensors (21), at least one acceleration sensor (22) and a controller, wherein the three temperature sensors (21) are respectively arranged at the two fork portions (112) and the spline pair, the acceleration sensor (22) is arranged on the transmission shaft, and the controller is electrically connected to the acceleration sensor (22) and each temperature sensor (21).

2. The intelligent transmission shaft assembly according to claim 1, characterized in that: The two fork parts (112) are each formed with a cavity, and a mounting groove (113) is recessed on the bottom wall of each cavity. The two fork parts (112) are divided into a spline fork (1121) and a universal joint fork (1122), the spline fork (1121) is connected to the spline shaft (1111), and the universal joint fork (1122) is connected to the spline sleeve (1112); The two temperature sensors (21) are respectively installed in the two installation slots (113) and are respectively arranged toward the two cross-shaft assemblies (12); the acceleration sensor (22) is arranged in one of the installation slots (113).

3. The intelligent transmission shaft assembly according to claim 1, characterized in that: The end surface of the spline shaft (1111) is recessed with a mounting hole (1113), the mounting hole (1113) being in communication with the mounting groove (113) provided on the spline fork (1121), and the mounting hole (1113) is provided for accommodating another temperature sensor (21).

4. A monitoring method for an intelligent transmission shaft assembly, characterized in that: Applied to the intelligent transmission shaft assembly according to any one of claims 1 to 3, the monitoring method comprises the following steps: Obtaining the temperature reading of each temperature sensor (21) and the acceleration reading of the acceleration sensor (22); A corresponding abnormal result is obtained according to the temperature indication and / or the acceleration indication.

5. The monitoring method of the intelligent transmission shaft assembly according to claim 4, characterized in that: The two fork portions (112) are divided into a spline fork (1121) and a universal joint fork (1122), the spline fork (1121) is connected to the spline shaft (1111), the universal joint fork (1122) is connected to the spline sleeve (1112), the mounting groove (113) of the spline fork (1121) is connected to the mounting hole (1113), and the two cross shaft assemblies (12) are divided into a first transmission cross shaft assembly connected to the spline fork in a transmission manner, and a second transmission cross shaft assembly connected to the universal joint fork in a transmission manner; The step of obtaining the temperature reading of each temperature sensor (21) and the acceleration reading of the acceleration sensor (22) comprises: The temperature readings of the three temperature sensors are divided into a first temperature reading corresponding to the spline fork (1121), a second temperature reading corresponding to the spline shaft (1111), and a third temperature reading corresponding to the universal joint fork (1122).

6. The method for monitoring an intelligent transmission shaft assembly according to claim 5, characterized in that: The step of obtaining a corresponding abnormal result according to the temperature indication and / or the acceleration indication further comprises: When the first temperature indication or the second temperature indication shows an upward trend and the acceleration indication shows an upward trend, it is obtained that the corresponding first transmission cross shaft assembly or the second transmission cross shaft assembly is ablated.

7. The method for monitoring an intelligent transmission shaft assembly according to claim 6, characterized in that: When the first temperature indication or the second temperature indication shows an upward trend, the step of obtaining the corresponding ablation of the first transmission cross shaft assembly or the second transmission cross shaft assembly includes: When the first temperature indication or the second temperature indication rises to a first set value, ablation occurs in the first transmission cross shaft assembly or the second transmission cross shaft assembly; When the first temperature indication or the second temperature indication rises to a second set value, the second set value is greater than the first set value, and the acceleration indication shows an upward trend, the first transmission cross shaft assembly or the second transmission cross shaft assembly fails.

8. The method for monitoring an intelligent transmission shaft assembly according to claim 5, characterized in that: The step of obtaining a corresponding abnormal result according to the temperature indication and / or the acceleration indication further comprises: When the third temperature indication and the acceleration indication are both on an upward trend, the spline pair is loose.

9. The method for monitoring an intelligent transmission shaft assembly according to claim 8, characterized in that: When the third temperature indication and the acceleration indication are both in an upward trend, the step of loosening the spline pair comprises: When the third temperature indication shows an upward trend and is less than a third set value, the spline pair abnormal sound is obtained; When both the third temperature indication and the acceleration indication show an upward trend and the third temperature indication is greater than a third set value, it is determined that the spline pair is loose.

10. A vehicle, characterized in that: Comprising the intelligent transmission shaft assembly according to any one of claims 1-3.

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