Early warning method and system for abrasion of gearbox clutch

Abstract

The invention relates to a gearbox clutch abrasion early warning method and system, and the method comprises the steps that on the basis of driving data of a target vehicle, clutch accumulated sliding friction work of the target vehicle in unit time is obtained, and the driving data comprises engine torque, clutch rotating speed difference and clutch sliding duration; on the basis of the clutch accumulated sliding friction total work of each vehicle in the vehicle cluster, a clutch disc failure accumulated sliding friction work threshold value of the target vehicle is obtained; wherein the vehicle cluster comprises reference vehicles of the same type as the target vehicle, and the total accumulated slipping work of the clutches of the vehicles comprises the total accumulated slipping work of the clutches of the vehicles in all times of maintenance of the clutches of the vehicles within a preset time period pushed forwards by taking the unit time as a starting point. Wherein the time corresponding to the two times of maintenance and the sum of the accumulated sliding friction work of the clutch corresponding to all unit time between the two times of maintenance; the clutch accumulated sliding friction work of the target vehicle is compared with a clutch disc failure accumulated sliding friction work threshold value of the target vehicle; and performing early warning according to a comparison result.

Description

Technical Field

[0001] The present application relates to the automotive field, and in particular to a gearbox clutch wear warning method and system. Background Art

[0002] At present, it is usually necessary to install additional sensors on the vehicle to directly collect the wear value of the gearbox clutch through the sensors to determine the wear condition of the clutch friction plate. The additional installation of such sensors will increase the cost of the vehicle, and the gearbox without such sensors installed cannot determine the wear condition and alert the driver through the existing solutions. Summary of the invention

[0003] The present application provides a gearbox clutch wear warning method and system, which can solve the problem in the related art that the additional installation of sensors will increase vehicle costs, and the gearbox without sensors installed cannot judge the wear condition and warn the driver through the existing solution.

[0004] In a first aspect, an embodiment of the present application provides a gearbox clutch wear warning method, which includes:

[0005] Based on the driving data of the target vehicle, the accumulated slipping work of the clutch of the target vehicle per unit time is obtained, wherein the driving data includes engine torque, clutch speed difference, and clutch slipping duration;

[0006] Based on the accumulated total slip work of the clutch of each vehicle in the vehicle cluster, the accumulated slip work threshold of the clutch plate failure of the target vehicle is obtained; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the accumulated total slip work of the clutch of the vehicle includes: the sum of the accumulated slip work of the clutch corresponding to the time of two repairs and all the unit times in between, among all the times of clutch repair of the vehicle within a preset time period pushed forward with the unit time as the starting point;

[0007] Comparing the clutch cumulative friction work of the target vehicle with the clutch plate failure cumulative friction work threshold of the target vehicle;

[0008] Based on the comparison results, an early warning is issued.

[0009] In combination with the first aspect, in one implementation, the vehicle cluster further includes the target vehicle.

[0010] In combination with the first aspect, in one implementation, based on the driving data of the target vehicle, obtaining the accumulated slipping work of the clutch of the target vehicle per unit time specifically includes:

[0011] Based on the driving data of the target vehicle at each gear shift, the accumulated slipping friction work of the clutch of the target vehicle at the time of the gear shift is obtained;

[0012] The accumulated slipping friction work of the clutch of the target vehicle during each gear shift is summed up to obtain the accumulated slipping friction work of the clutch of the target vehicle per unit time.

[0013] In combination with the first aspect, in one implementation, based on the clutch cumulative total friction work of each vehicle in the vehicle cluster, obtaining the clutch plate failure cumulative friction work threshold of the target vehicle specifically includes:

[0014] Based on the clutch cumulative slip work of each vehicle in the vehicle cluster, the average clutch cumulative slip work of the vehicle cluster is calculated, and the average clutch cumulative slip work is recorded as the clutch plate failure cumulative slip work threshold of the type of vehicle to which the vehicle belongs.

[0015] In combination with the first aspect, in one implementation, based on the clutch cumulative total slipping work of each vehicle in the vehicle cluster, calculating the average clutch cumulative total slipping work of the vehicle cluster specifically includes:

[0016] Based on the clutch cumulative slipping total work of each vehicle in the vehicle cluster, obtaining the clutch cumulative slipping total work average value and the clutch cumulative slipping total work standard deviation of the vehicle cluster;

[0017] Determine the clutch cumulative slipping total work that meets the set conditions based on the clutch cumulative slipping total work average value and the clutch cumulative slipping total work standard deviation;

[0018] Based on the clutch accumulated total slipping work satisfying the set condition and the number of vehicles that satisfy the clutch accumulated total slipping work satisfying the set condition, the average clutch accumulated total slipping work of the vehicle cluster is calculated.

[0019] In combination with the first aspect, in one implementation, the clutch accumulated slipping total work satisfies a set condition that an absolute value of a difference between the clutch accumulated slipping total work and an average value of the clutch accumulated slipping total work is less than or equal to a set deviation threshold.

[0020] In combination with the first aspect, in one implementation, the set deviation threshold is three times the standard deviation of the total accumulated slipping work of the clutch.

[0021] In combination with the first aspect, in one implementation, obtaining the average value of the clutch accumulated slipping and friction total work and the standard deviation of the clutch accumulated slipping and friction total work of the vehicle cluster specifically includes:

[0022] Based on the number of vehicles in the vehicle cluster and the accumulated total slipping work of the clutch of each vehicle, obtaining an average value of the accumulated total slipping work of the clutch of the vehicle cluster;

[0023] Based on the average value of the clutch accumulated slipping and friction total work of the vehicle cluster and the number of vehicles in the vehicle cluster, the standard deviation of the clutch accumulated slipping and friction total work of the vehicle cluster is obtained.

[0024] In combination with the first aspect, in one implementation, comparing the accumulated slipping friction work of the clutch of the target vehicle with the accumulated slipping friction work threshold of the clutch plate failure of the target vehicle specifically includes: obtaining a ratio of the accumulated slipping friction work of the clutch of the target vehicle to the accumulated slipping friction work threshold of the clutch plate failure of the target vehicle, and comparing the ratio with a set value;

[0025] According to the comparison results, an early warning is issued, specifically including: when the ratio value is greater than the set value, an early warning prompt is issued.

[0026] In the second aspect, an embodiment of the present application provides a gearbox clutch wear warning system, which includes: a first module, a second module, a third module and a fourth module; the first module is used to obtain the cumulative slip work of the clutch of the target vehicle per unit time based on the driving data of the target vehicle, and the driving data includes engine torque, clutch speed difference, and clutch slip duration; the second module is used to obtain the cumulative slip work threshold of clutch plate failure of the target vehicle based on the cumulative slip work of the clutch of each vehicle in the vehicle cluster; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the cumulative slip work of the vehicle's clutch includes: the sum of the time corresponding to two of the repairs and all the unit times in between all the times the clutch of the vehicle is repaired within a preset time period starting from the unit time; the third module is used to compare the cumulative slip work of the clutch of the target vehicle with the cumulative slip work threshold of the clutch plate failure of the target vehicle; the fourth module is used to issue a warning based on the comparison result.

[0027] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0028] The embodiment of the present application provides a transmission clutch wear warning method and system, which directly collects the transmission clutch wear value to determine the clutch friction plate wear condition without additionally installing sensors on the vehicle, integrates the total accumulated slipping work of the vehicle clutch of vehicles of the same type, calculates the target vehicle's clutch accumulated slipping work and the target vehicle's clutch plate failure accumulated slipping work threshold through a big data analysis method, and realizes real-time monitoring and early warning of manual transmission clutch wear by comparing the target vehicle's clutch accumulated slipping work with the target vehicle's clutch plate failure accumulated slipping work threshold. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A flow chart of a gearbox clutch wear warning method provided in an embodiment of the present application;

[0031] Figure 2 A flow chart for obtaining the accumulated friction work of the clutch of a target vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1 to Figure 2 The embodiment of the present application provides a transmission clutch wear warning method and system, which can solve the problem in the related technology that the additional installation of sensors will increase the cost of the vehicle, and the transmission without sensors installed cannot judge the wear condition and warn the driver through the existing solution.

[0034] In a first aspect, an embodiment of the present application provides a gearbox clutch wear warning method, which includes:

[0035] 101: Acquire the accumulated slipping work of the clutch of the target vehicle per unit time based on the driving data of the target vehicle, wherein the driving data includes engine torque, clutch speed difference, and clutch slipping duration;

[0036] 102: Based on the clutch cumulative total friction work of each vehicle in the vehicle cluster, obtain the clutch plate failure cumulative friction work threshold of the target vehicle; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the clutch cumulative total friction work of the vehicle includes: the sum of the clutch cumulative friction work corresponding to the time of two maintenances and all unit times in between, among all the times of clutch maintenance of the vehicle within a preset time period pushed forward with the unit time as the starting point;

[0037] 103: Compare the clutch cumulative friction work of the target vehicle with the clutch plate failure cumulative friction work threshold of the target vehicle;

[0038] 104: Issue a warning based on the comparison results.

[0039] In the present application, without adding additional sensors to the vehicle to directly collect the wear value of the transmission clutch to determine the wear condition of the clutch friction plate, the total accumulated slip work of the vehicle clutch of the same type of vehicles is integrated, and the accumulated slip work of the clutch of the target vehicle and the accumulated slip work threshold of the clutch plate failure of the target vehicle are calculated through big data analysis methods. By comparing the accumulated slip work of the clutch of the target vehicle with the accumulated slip work threshold of the clutch plate failure of the target vehicle, real-time monitoring and early warning of manual transmission clutch wear are achieved.

[0040] In this application, vehicles can be classified according to their models, for example, trucks can be classified as one type, as a vehicle cluster; sedans can be classified as one type, as a vehicle cluster...

[0041] Vehicles can also be classified according to their usage scenarios. For example, vehicles used for express delivery can be classified as one type and as a vehicle cluster; vehicles used for transporting ore, coal sand and slag can be classified as one type and as a vehicle cluster...

[0042] Vehicles can also be classified according to their driving routes. For example, vehicles that often travel in urban areas can be classified as one type, as a vehicle cluster; vehicles that often travel on highways can be classified as one type, as a vehicle cluster...

[0043] It should be noted that the vehicles in the vehicle cluster are all equipped with a transmission clutch wear warning system.

[0044] In some embodiments, the vehicle cluster includes reference vehicles of the same type as the target vehicle. In this embodiment, when obtaining the clutch cumulative slipping total work of each vehicle in the vehicle cluster, the clutch cumulative slipping total work of the target vehicle is not included.

[0045] In other embodiments, the vehicle cluster also includes the target vehicle. That is, in this embodiment, when collecting the total accumulated slip work of the clutch of each vehicle in the vehicle cluster, the target vehicle is taken as a part of the vehicle cluster, and it is also necessary to collect the total accumulated slip work of the clutch corresponding to the time of two repairs and all the unit times in between all the times of clutch repairs of the vehicle in the preset time period starting from the unit time as the starting point.

[0046] It should be noted that the corresponding implementation method is selected according to the actual situation.

[0047] In this embodiment, the unit time is set to one day, that is, in step 101, based on the driving data of the target vehicle, the accumulated slipping friction work of the clutch of the target vehicle in one day is obtained. One day here refers to the previous day when the target vehicle is used, that is, after the vehicle is started on the day, based on the driving data of the target vehicle, the accumulated slipping friction work of the clutch of the target vehicle in the previous day is obtained.

[0048] It should also be noted that in the present application, the total accumulated slip work of the vehicle's clutch is set as: taking the unit time as the starting point, within the preset time period pushing forward, the time corresponding to the first maintenance and the second maintenance pushing forward and the sum of the accumulated slip work of the clutch corresponding to all unit times in between.

[0049] For ease of understanding, an example is given here: for example, taking October 20 as the starting point, one of the vehicles in the vehicle cluster repairs the vehicle clutch on October 19, October 1, and August 1 within half a year. Taking this unit time as the starting point, within the preset time period pushed forward, the time corresponding to the first and second repairs pushed forward and all unit times in between refer to: October 19, October 1, and all unit times between October 19 and October 1.

[0050] On the basis of the above embodiment, in this embodiment, in step 101: based on the driving data of the target vehicle, the accumulated slipping work of the clutch of the target vehicle in unit time is obtained, which specifically includes steps 1010 to 1011:

[0051] Step 1010: Based on the driving data of the target vehicle at each gear shift, the accumulated slipping friction work of the clutch of the target vehicle at the time of the gear shift is obtained.

[0052] When the vehicle is shifting gears, it is necessary to obtain the engine torque, clutch speed difference, and clutch slip duration of the target vehicle when shifting gears, and record the shifting behavior and the time of the shifting at this time.

[0053] Since the vehicle may shift gears multiple times during driving within a unit of time, it is necessary to record each shifting behavior and the corresponding data so as to obtain the accumulated slipping work of the clutch of the target vehicle on the next day.

[0054] When calculating the accumulated friction work of the clutch of the target vehicle, according to the formula:

[0055]

[0056] Calculate the slip work W corresponding to each gear shift. Wherein, T represents the engine output torque (unit: Nm); π represents the circumference of a circle; Δn represents the clutch speed difference (unit: revolutions per minute); and t represents the clutch slip duration (unit: seconds).

[0057] Step 1011: summing up the accumulated slipping friction work of the clutch of the target vehicle during each gear shift to obtain the accumulated slipping friction work of the clutch of the target vehicle per unit time.

[0058] Then according to the formula: The accumulated friction work of the clutch of the target vehicle per unit time is accumulated. Where is the friction work corresponding to the i-th gear shift, and n represents the total number of gear shifts per unit time.

[0059] On the basis of the above embodiment, in this embodiment, in step 102: based on the clutch cumulative total friction work of each vehicle in the vehicle cluster, obtaining the clutch plate failure cumulative friction work threshold of the target vehicle specifically includes step 1020:

[0060] Based on the clutch cumulative slip work of each vehicle in the vehicle cluster, the average clutch cumulative slip work of the vehicle cluster is calculated, and the average clutch cumulative slip work is recorded as the clutch plate failure cumulative slip work threshold of the type of vehicle to which the vehicle belongs.

[0061] It should be noted that the total accumulated slip work of the vehicle's clutch includes: the sum of the accumulated slip work of the clutch corresponding to the time of two repairs and all unit times in between among all the times the vehicle's clutch is repaired within a preset time period starting from the unit time.

[0062] Therefore, it is necessary to first calculate the time corresponding to the two maintenances of each vehicle and the accumulated clutch friction work corresponding to all unit times in between, and then add up all the accumulated clutch friction work corresponding to the vehicle to obtain the total accumulated clutch friction work of the vehicle.

[0063] The method of calculating the average clutch cumulative total slipping work of the vehicle cluster based on the clutch cumulative total slipping work of each vehicle in the vehicle cluster specifically includes steps 10200 to 10202:

[0064] Step 10200: Based on the clutch cumulative slipping work of each vehicle in the vehicle cluster, obtain the clutch cumulative slipping work average value and the clutch cumulative slipping work standard deviation of the vehicle cluster.

[0065] Specifically, obtaining the average value of the clutch cumulative slip friction total work and the standard deviation of the clutch cumulative slip friction total work of the vehicle cluster includes:

[0066] First, based on the number of vehicles in the vehicle cluster and the accumulated total slip work of the clutch of each vehicle, the average value of the accumulated total slip work of the clutch of the vehicle cluster is obtained; then, based on the average value of the accumulated total slip work of the clutch of the vehicle cluster and the number of vehicles in the vehicle cluster, the standard deviation of the accumulated total slip work of the clutch of the vehicle cluster is obtained.

[0067] According to the formula:

[0068]

[0069] The average value of the clutch cumulative slipping work of the vehicle cluster and the standard deviation of the clutch cumulative slipping work of the vehicle cluster are calculated, where N represents the number of vehicles in the vehicle cluster, and Wj represents the clutch cumulative slipping work of the j-th vehicle in the vehicle cluster.

[0070] Step 10201: Based on the average value of the clutch accumulated slipping and friction work and the standard deviation of the clutch accumulated slipping and friction work, determine the clutch accumulated slipping and friction work that meets the set conditions.

[0071] Specifically, the clutch accumulated slipping total work satisfies the set condition that the absolute value of the difference between the clutch accumulated slipping total work and the clutch accumulated slipping total work average value is less than or equal to a set deviation threshold, wherein the set deviation threshold is three times the clutch accumulated slipping total work standard deviation.

[0072] That is, according to |W j -μ|>3σ determines whether the accumulated total slip work of each vehicle clutch meets the set conditions. j -μ|>3σ, the set conditions are not met; when |W-μ|≤3σ, the set conditions are met.

[0073] The accumulated total slipping work of the clutches that do not meet the set conditions is removed in the vehicle cluster.

[0074] Step 10202: Based on the clutch cumulative slipping total work that meets the set conditions and the number of vehicles that meet the clutch cumulative slipping total work that meets the set conditions, calculate the average clutch cumulative slipping total work of the vehicle cluster.

[0075] Specifically, according to the formula: ′

[0076]

[0077] Calculate the average clutch cumulative slip work of the vehicle cluster, where N′ is the number of vehicles after removing the clutch cumulative slip work that does not meet the set conditions. 平均 That is, the cumulative sliding friction work threshold of clutch plate failure for reference of the target vehicle.

[0078] On the basis of the above embodiments, in the present embodiment, the accumulated slip work of the clutch of the target vehicle is compared with the accumulated slip work threshold of the clutch plate failure of the target vehicle, specifically including: obtaining the ratio of the accumulated slip work of the clutch of the target vehicle to the accumulated slip work threshold of the clutch plate failure of the target vehicle, and comparing the ratio with the set value.

[0079] Specifically, the driver turns on the clutch replacement reminder notification function in the vehicle IVI information cockpit. After the fourth module, i.e., the early warning service module, receives the notification start command, the big data analysis background obtains the target vehicle's clutch cumulative friction work and the target vehicle's clutch plate failure cumulative friction work threshold. The target vehicle's clutch cumulative friction work reaches the target vehicle's clutch plate failure cumulative friction work threshold and is compared with the set value of 80%.

[0080] Among them, according to the comparison result, an early warning is issued, specifically including: when the ratio value is greater than the set value, an early warning prompt is issued. In other words, when the cumulative slip work of the clutch of the target vehicle reaches the cumulative slip work threshold of the clutch plate failure of the target vehicle and is greater than 80%, an early warning is issued.

[0081] Wherein, the set value includes a first set value and a second set value;

[0082] Furthermore, when the ratio value is greater than a set value, a warning prompt is issued, specifically including: when the ratio value is greater than or equal to a first set value and less than a second set value, a clutch inspection warning prompt is issued; when the ratio value is greater than or equal to the second set value, a clutch damage warning prompt is issued.

[0083] Specifically, 80% is used as the first setting value, and 90% is used as the second setting value. It should be noted that the setting values ​​can be adjusted according to actual conditions.

[0084] When the target vehicle's clutch accumulated slip work reaches the target vehicle's clutch plate failure accumulated slip work threshold of greater than 80%, the fourth module pushes an inspection warning prompt to the driver through the Internet of Vehicles platform: it is recommended to arrange to check the clutch plate condition in the near future to determine whether it needs to be replaced; when the target vehicle's clutch accumulated slip work reaches the target vehicle's clutch plate failure accumulated slip work threshold of greater than 90%, a clutch damage warning prompt is pushed to the driver: it is recommended to check and replace as soon as possible.

[0085] When the in-vehicle IVI information cockpit receives a warning notification message, the warning message is displayed on the in-vehicle IVI screen.

[0086] Therefore, this application predicts clutch wear based on big data analysis: using the vehicle driving data and vehicle clutch maintenance information collected by the Internet of Vehicles platform, the clutch cumulative friction work of the clutch plate is calculated through big data analysis methods, and the clutch plate failure cumulative friction work threshold under the vehicle cluster is established; the vehicle driving data can be collected through the on-board TBOX terminal, and there is no need to install additional sensors to collect the wear value of the transmission clutch. Combined with the Internet of Vehicles platform and big data analysis technology, real-time monitoring and early warning of manual transmission clutch wear can be achieved.

[0087] In a second aspect, an embodiment of the present application provides a gearbox clutch wear warning system, which includes: a first module, a second module, a third module and a fourth module, the first module is used to obtain the cumulative slip work of the clutch of the target vehicle per unit time based on the driving data of the target vehicle, and the driving data includes engine torque, clutch speed difference, and clutch slip duration; the second module is used to obtain the cumulative slip work threshold of clutch plate failure of the target vehicle based on the cumulative slip work of the clutch of each vehicle in the vehicle cluster; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the cumulative slip work of the clutch of the vehicle includes: the sum of the time corresponding to two of the repairs and all the unit times in between all the times of clutch maintenance of the vehicle within a preset time period starting from the unit time; the third module is used to compare the cumulative slip work of the clutch of the target vehicle with the cumulative slip work threshold of clutch plate failure of the target vehicle; the fourth module is used to issue a warning based on the comparison result.

[0088] Among them, the gearbox clutch wear warning system also includes: an on-board TBOX terminal, which collects the vehicle's driving data and clutch maintenance data, and transmits them to the Internet of Vehicles platform. The Internet of Vehicles platform receives the vehicle's driving data and clutch maintenance data reported by the on-board TBOX terminal, parses the original message, cleans the data, and stores it in the big data analysis background; the offline ETL task of the big data analysis background is executed every day to calculate the target vehicle's clutch cumulative slip work and the target vehicle's clutch plate failure cumulative slip work threshold per unit time.

[0089] Therefore, in the present application, without adding any additional sensors to the vehicle to directly collect the wear value of the transmission clutch to determine the wear condition of the clutch friction plate, the total accumulated slip work of the vehicle clutch of the same type of vehicles is integrated, and the accumulated slip work of the clutch of the target vehicle and the accumulated slip work threshold of the clutch plate failure of the target vehicle are calculated through big data analysis methods. By comparing the accumulated slip work of the clutch of the target vehicle with the accumulated slip work threshold of the clutch plate failure of the target vehicle, real-time monitoring and early warning of manual transmission clutch wear can be achieved.

[0090] The driver turns on the clutch replacement reminder notification function on the in-vehicle IVI information cockpit. After the fourth module, that is, the early warning service module, receives the notification start command, the big data analysis background obtains the target vehicle's clutch cumulative slip work and the target vehicle's clutch plate failure cumulative slip work threshold. And the target vehicle's clutch cumulative slip work reaches the target vehicle's clutch plate failure cumulative slip work threshold and compares it with the set value of 80%. When the target vehicle's clutch cumulative slip work reaches the target vehicle's clutch plate failure cumulative slip work threshold greater than 80%, the fourth module pushes an inspection warning prompt to the driver through the Internet of Vehicles platform: It is recommended to arrange to check the clutch plate in the near future to determine whether it needs to be replaced; when the target vehicle's clutch cumulative slip work reaches the target vehicle's clutch plate failure cumulative slip work threshold greater than 90%, the driver is pushed a clutch damage warning prompt: It is recommended to check and replace as soon as possible. When the in-vehicle IVI information cockpit receives the warning notification information, the warning information is displayed on the in-vehicle IVI screen.

[0091] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0092] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0093] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A gearbox clutch wear warning method, characterized in that: It includes: Based on the driving data of the target vehicle, the accumulated slipping work of the clutch of the target vehicle per unit time is obtained, wherein the driving data includes engine torque, clutch speed difference, and clutch slipping duration; Based on the accumulated total slip work of the clutch of each vehicle in the vehicle cluster, the accumulated slip work threshold of the clutch plate failure of the target vehicle is obtained; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the accumulated total slip work of the clutch of the vehicle includes: the sum of the accumulated slip work of the clutch corresponding to the time of two repairs and all the unit times in between, among all the times of clutch repair of the vehicle within a preset time period pushed forward with the unit time as the starting point; Comparing the clutch cumulative friction work of the target vehicle with the clutch plate failure cumulative friction work threshold of the target vehicle; Based on the comparison results, an early warning is issued.

2. The gearbox clutch wear warning method according to claim 1, characterized in that: The vehicle cluster also includes the target vehicle.

3. The gearbox clutch wear warning method according to claim 1, characterized in that: Based on the driving data of the target vehicle, the accumulated friction work of the clutch of the target vehicle per unit time is obtained, including: Based on the driving data of the target vehicle at each gear shift, the accumulated slipping friction work of the clutch of the target vehicle at the time of the gear shift is obtained; The accumulated slipping friction work of the clutch of the target vehicle during each gear shift is summed up to obtain the accumulated slipping friction work of the clutch of the target vehicle per unit time.

4. The gearbox clutch wear warning method according to claim 1, characterized in that: Based on the total accumulated slip work of the clutch of each vehicle in the vehicle cluster, the accumulated slip work threshold of the clutch plate failure of the target vehicle is obtained, specifically including: Based on the clutch cumulative friction work of each vehicle in the vehicle cluster, the average clutch cumulative friction work of the vehicle cluster is calculated, and the average clutch cumulative friction work is recorded as the clutch plate failure cumulative friction work threshold of the type of vehicle to which the vehicle belongs.

5. The gearbox clutch wear warning method according to claim 4, characterized in that: Based on the clutch cumulative slipping total work of each vehicle in the vehicle cluster, the average clutch cumulative slipping total work of the vehicle cluster is calculated, specifically including: Based on the clutch cumulative slipping total work of each vehicle in the vehicle cluster, obtaining the clutch cumulative slipping total work average value and the clutch cumulative slipping total work standard deviation of the vehicle cluster; Determine the clutch cumulative slipping total work that meets the set conditions based on the clutch cumulative slipping total work average value and the clutch cumulative slipping total work standard deviation; Based on the clutch accumulated total slipping work satisfying the set condition and the number of vehicles that satisfy the clutch accumulated total slipping work satisfying the set condition, the average clutch accumulated total slipping work of the vehicle cluster is calculated.

6. The gearbox clutch wear warning method according to claim 5, characterized in that: The clutch accumulated slipping total work satisfies a set condition that an absolute value of a difference between the clutch accumulated slipping total work and an average value of the clutch accumulated slipping total work is less than or equal to a set deviation threshold.

7. The gearbox clutch wear warning method according to claim 6, characterized in that: The set deviation threshold is three times the standard deviation of the total accumulated slipping work of the clutch.

8. The gearbox clutch wear warning method according to claim 5, characterized in that: Obtain the average value of the clutch cumulative slipping and friction total work and the standard deviation of the clutch cumulative slipping and friction total work of the vehicle cluster, specifically including: Based on the number of vehicles in the vehicle cluster and the accumulated total slipping work of the clutch of each vehicle, obtaining an average value of the accumulated total slipping work of the clutch of the vehicle cluster; Based on the average value of the clutch accumulated slipping and friction total work of the vehicle cluster and the number of vehicles in the vehicle cluster, the standard deviation of the clutch accumulated slipping and friction total work of the vehicle cluster is obtained.

9. The gearbox clutch wear warning method according to claim 1, characterized in that: Comparing the accumulated slipping friction work of the clutch of the target vehicle with the accumulated slipping friction work threshold of the clutch plate failure of the target vehicle, specifically including: obtaining a ratio of the accumulated slipping friction work of the clutch of the target vehicle to the accumulated slipping friction work threshold of the clutch plate failure of the target vehicle, and comparing the ratio with a set value; According to the comparison results, an early warning is issued, specifically including: when the ratio value is greater than the set value, an early warning prompt is issued.

10. A gearbox clutch wear warning system, characterized in that: It includes: The first module is used to obtain the accumulated slipping work of the clutch of the target vehicle per unit time based on the driving data of the target vehicle, wherein the driving data includes engine torque, clutch speed difference, and clutch slipping duration; The second module is used to obtain the clutch plate failure cumulative friction work threshold of the target vehicle based on the clutch cumulative friction work of each vehicle in the vehicle cluster; wherein the vehicle cluster includes reference vehicles of the same type as the target vehicle, and the clutch cumulative friction work of the vehicle includes: the sum of the clutch cumulative friction work corresponding to the time of two repairs and all unit times in between all the times of clutch repairs of the vehicle within a preset time period pushed forward from the unit time as the starting point; The third module is used to compare the clutch cumulative friction work of the target vehicle with the clutch plate failure cumulative friction work threshold of the target vehicle; The fourth module: It is used to issue early warning based on the comparison results.

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