CN116448403A - Antifriction gasket performance detection method and device, storage medium and vehicle - Google Patents

Antifriction gasket performance detection method and device, storage medium and vehicle Download PDF

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Publication number
CN116448403A
CN116448403A CN202310546052.8A CN202310546052A CN116448403A CN 116448403 A CN116448403 A CN 116448403A CN 202310546052 A CN202310546052 A CN 202310546052A CN 116448403 A CN116448403 A CN 116448403A
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China
Prior art keywords
antifriction
vehicle
normal load
pad
sliding speed
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CN202310546052.8A
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Chinese (zh)
Inventor
林小凤
徐立辉
于东洋
王炯桢
赵峄桐
刘越
魏长城
张益智
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FAW Group Corp
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FAW Group Corp
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Priority to CN202310546052.8A priority Critical patent/CN116448403A/en
Publication of CN116448403A publication Critical patent/CN116448403A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a performance detection method and device of antifriction gaskets, a storage medium and a vehicle. The method comprises the following steps: acquiring power parameters and preset parameters of a vehicle, wherein the power parameters are used for representing running state information of the vehicle, and the preset parameters are used for representing component information of the vehicle; determining a normal load of the vehicle on the antifriction pad based on the power parameter and the preset parameter; determining a sliding speed of a driving shaft of the vehicle and the antifriction gasket sliding based on the normal load; determining the wear amount of the coating of the antifriction pad based on the normal load and the sliding speed; based on the wear amount, outputting early warning information of the antifriction gasket, wherein the early warning information is used for representing that the antifriction gasket is in a state about to lose efficacy. The invention solves the technical problem that the service life of the antifriction gasket is difficult to perform early warning treatment.

Description

Antifriction gasket performance detection method and device, storage medium and vehicle
Technical Field
The invention relates to the field of vehicles, in particular to a performance detection method and device of antifriction gaskets, a storage medium and a vehicle.
Background
At present, in the current antifriction gasket application, antifriction gasket parts are usually directly added at the matching surface of a driving shaft and a hub, but related sensors are not arranged in a control system of the whole automobile, and related monitoring or early warning parts are not arranged in the control system of the whole automobile, so that the technical problem that early warning treatment is difficult to carry out on the service life of the antifriction gasket is caused.
Aiming at the technical problem that the service life of the antifriction gasket is difficult to carry out early warning treatment, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides a performance detection method and device of an antifriction gasket, a storage medium and a vehicle, and aims to at least solve the technical problem that early warning treatment is difficult to be carried out on the service life of the antifriction gasket.
According to one aspect of an embodiment of the present invention, a method of detecting performance of an antifriction pad is provided. The method may include: acquiring power parameters and preset parameters of a vehicle, wherein the power parameters are used for representing running state information of the vehicle, and the preset parameters are used for representing component information of the vehicle; determining a normal load of the vehicle on the antifriction pad based on the power parameter and the preset parameter; determining a sliding speed of a driving shaft of the vehicle and the antifriction gasket sliding based on the normal load; determining the wear amount of the coating of the antifriction pad based on the normal load and the sliding speed; based on the wear amount, outputting early warning information of the antifriction gasket, wherein the early warning information is used for representing that the antifriction gasket is in a state about to lose efficacy.
Optionally, the power parameter comprises at least one of: lateral acceleration, longitudinal acceleration, and powertrain torque, the preset parameters include at least one of: front axle weight, rear axle weight and coefficient of friction, based on power parameter and preset parameter, confirm the normal load of vehicle on antifriction gasket, include: determining a first normal load corresponding to the lateral acceleration and the front axle weight, wherein the first normal load is used to characterize a normal load of the vehicle on the front drive axle friction reducing pads; a second normal load corresponding to the lateral acceleration and the rear axle weight is determined, wherein the second normal load is used to characterize the normal load of the vehicle on the rear drive axle friction reducing pads.
Optionally, determining a sliding speed of the drive shaft of the vehicle with the antifriction pads based on the normal load includes: determining a first sliding speed according to a mapping relation among a first normal load, a friction coefficient and the first sliding speed, wherein the first sliding speed is used for representing the sliding speed of the front driving shaft of the vehicle and the front driving shaft antifriction gasket; and determining a second sliding speed according to the mapping relation among the second normal load, the friction coefficient and the second sliding speed, wherein the second sliding speed is used for representing the sliding speed of the rear driving shaft of the vehicle and the rear driving shaft antifriction gasket.
Optionally, determining an amount of wear of the coating of the friction reducing shim based on the normal load and the sliding speed comprises: determining the wear amount of a coating of a first antifriction pad according to a mapping relation among a first normal load, a first sliding speed and the wear amount of the coating of the first antifriction pad, wherein the first antifriction pad is used for representing the antifriction pad arranged at a front driving shaft of a vehicle; and determining the abrasion loss of the coating of the second antifriction pad according to the mapping relation among the second normal load, the second sliding speed and the abrasion loss of the coating of the second antifriction pad, wherein the second antifriction pad is used for representing the antifriction pad arranged at the rear driving shaft of the vehicle.
Optionally, based on the wear amount, outputting the pre-warning information of the antifriction pad, including: responding to the abrasion loss of the coating of the first antifriction gasket being greater than or equal to an abrasion threshold value, and outputting early warning information of the first antifriction gasket; and outputting early warning information of the second antifriction gasket in response to the abrasion loss of the coating of the second antifriction gasket being greater than or equal to the abrasion threshold.
Optionally, after outputting the early warning information of the antifriction pad based on the wear amount, the performance detection method of the antifriction pad further includes: and uploading the abrasion loss of the coating of the first antifriction gasket and/or the abrasion loss of the coating of the second antifriction gasket to the cloud platform.
According to one aspect of an embodiment of the present invention, a performance testing apparatus for an antifriction pad is provided. The apparatus may include: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring power parameters and preset parameters of a vehicle, the power parameters are used for representing running state information of the vehicle, and the preset parameters are used for representing component information of the vehicle; the first determining unit is used for determining the normal load of the vehicle on the antifriction gasket based on the power parameter and the preset parameter; a second determining unit for determining a sliding speed at which the drive shaft of the vehicle slides with the antifriction pads based on the normal load; a third determining unit for determining an amount of wear of the coating of the antifriction pad based on the normal load and the sliding speed; and the output unit is used for outputting early warning information of the antifriction gasket based on the abrasion loss, wherein the early warning information is used for representing that the antifriction gasket is in a state about to lose efficacy.
According to another aspect of an embodiment of the present invention, there is also provided a computer-readable storage medium. The computer readable storage medium comprises a stored program, wherein the device in which the computer readable storage medium is arranged is controlled to execute the performance detection method of the antifriction pad according to the embodiment of the invention when the program runs.
According to another aspect of an embodiment of the present invention, there is also provided a processor. The processor is used for running a program, wherein the program is executed by the processor to execute the performance detection method of the antifriction pad.
According to another aspect of the embodiments of the present invention, there is also provided a vehicle for performing the performance detection method of the antifriction pad of the embodiments of the present invention.
In the embodiment of the invention, the power parameter and the preset parameter of the vehicle are firstly obtained, then the normal load on the antifriction pad of the front driving shaft of the vehicle and the normal load on the antifriction pad of the rear driving shaft of the vehicle are determined according to the obtained power parameter and the preset parameter, then the first sliding speed is determined according to the mapping relation among the normal load, the friction coefficient and the first sliding speed on the antifriction pad of the front driving shaft of the vehicle, the second sliding speed is determined according to the mapping relation among the normal load, the friction coefficient and the second sliding speed on the antifriction pad of the rear driving shaft of the vehicle, the wear amount of the coating of the first antifriction pad and the wear amount of the coating of the second antifriction pad can be respectively determined according to the obtained normal load and the preset parameter, finally the relation between the wear amount of the coating of the first antifriction pad and the wear threshold is judged, and whether the maintenance of the coating of the second antifriction pad and the wear threshold is required or not is required can be determined, so the technical problem that the service life of the antifriction pad can be prevented and early warning and service life of the antifriction pad can be realized is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a flow chart of a method of performance testing of an antifriction pad in accordance with an embodiment of the present invention;
FIG. 2 (a) is a schematic illustration of an antifriction shim construction in accordance with an embodiment of the present invention;
FIG. 2 (b) is a schematic illustration of another friction reducing shim construction according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an antifriction pad life warning system based on cloud data in accordance with an embodiment of the present invention;
FIG. 4 is a schematic illustration of a performance testing apparatus for friction reducing shims according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention there is provided a method of performance detection of an antifriction pad, it being noted that the steps shown in the flow chart of the accompanying figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical sequence is shown in the flow chart, in some cases the steps shown or described may be performed in a different order than that shown.
FIG. 1 is a flow chart of a method of performance testing of an antifriction pad in accordance with an embodiment of the invention, which may include the steps of:
step S101, acquiring a power parameter and a preset parameter of the vehicle.
In the technical solution provided in the above step S101 of the present invention, the data acquisition unit in the vehicle may be used to acquire the power parameters of the vehicle, and the data storage unit in the vehicle may be used to acquire the preset parameters of the vehicle, where the data acquisition unit may include a gear sensor, an acceleration sensor, a steering wheel torque angle sensor, a vehicle speed sensor, etc., the power parameters may be used to represent the running state information of the vehicle, the data storage unit may include a data storage, and the preset parameters may be used to represent the component information of the vehicle, and this is only illustrative and not limiting.
Alternatively, a transmission gear of the vehicle may be acquired through a gear sensor, a lateral acceleration and a longitudinal acceleration of the vehicle may be acquired through an acceleration sensor, a steering angle of the vehicle may be acquired through a steering wheel torque angle sensor, a running speed of the vehicle may be acquired through a vehicle speed sensor, and an overall vehicle weight, a front axle weight, a rear axle weight, a tire rolling radius, and the like of the vehicle may be acquired through a data storage.
Step S102, determining the normal load of the vehicle on the antifriction pad based on the power parameter and the preset parameter.
In the technical solution provided in the above step S102 of the present invention, after the power parameters and the preset parameters of the vehicle are obtained, the normal load on the antifriction pad of the front drive shaft of the vehicle can be determined according to the lateral acceleration, the weight of the front axle and the normal load on the antifriction pad of the front drive shaft of the vehicle, and the normal load on the antifriction pad of the rear drive shaft of the vehicle can be determined according to the lateral acceleration, the weight of the rear axle and the normal load on the antifriction pad of the rear drive shaft of the vehicle, so that the normal load on the antifriction pad of the vehicle can be determined.
Alternatively, the normal load of the vehicle on the front drive shaft friction reducing pad may be calculated by the following formula (1), and the normal load of the vehicle on the rear drive shaft friction reducing pad may be calculated by the following formula (2):
NF＝Fb+QF*ay (1)
NR＝Fb+QR*ay (2)
wherein Fb can be used to characterize the axle force generated after installation of the half axle nut, QF can be used to characterize the front axle weight, NF can be used to characterize the normal load of the front drive axle antifriction pad, QR can be used to characterize the rear axle weight, ay can be used to characterize the lateral acceleration, NR can be used to characterize the normal load of the rear drive axle antifriction pad.
Step S103, determining the sliding speed of the driving shaft of the vehicle and the antifriction pad sliding based on the normal load.
In the technical solution provided in the above step S103 of the present invention, after determining the normal load of the vehicle on the antifriction pad, the sliding speed of the front drive shaft of the vehicle to the front drive shaft antifriction pad may be determined according to the normal load of the vehicle on the front drive shaft antifriction pad and the sliding speed of the front drive shaft of the vehicle to the front drive shaft antifriction pad, in the case where the friction coefficient has been determined, and the sliding speed of the rear drive shaft of the vehicle to the rear drive shaft antifriction pad may be determined according to the normal load of the vehicle on the rear drive shaft antifriction pad and the sliding speed of the rear drive shaft of the vehicle to the rear drive shaft antifriction pad, in the case where the friction coefficient has been determined, whereby the sliding speed of the drive shaft of the vehicle to the antifriction pad may be determined.
Alternatively, the sliding speed of the front drive shaft and the front drive shaft antifriction pad of the vehicle can be calculated by the following formula (3), and the sliding speed of the rear drive shaft and the rear drive shaft antifriction pad of the vehicle can be calculated by the following formula (4):
Wherein c can be used to characterize the front and rear drive axle torque distribution coefficients, rv can be used to characterize the equivalent friction radius, JF can be used to characterize the front drive axle moment of inertia, JR can be used to characterize the rear drive axle moment of inertia, θ F Can be used for representing the maximum angular displacement of the front driving shaft and the sliding of the antifriction gasket, theta R Can be used for characterizing the sliding of a rear driving shaft and an antifriction gasketTe may be used to characterize powertrain torque, i may be used to characterize the overall speed ratio of the powertrain, VF may be used to characterize the slip speed of the front drive axle to the front drive axle anti-friction pad slip, and VR may be used to characterize the slip speed of the rear drive axle to the rear drive axle anti-friction pad slip.
Step S104, determining the abrasion loss of the coating of the antifriction pad based on the normal load and the sliding speed.
In the technical solution provided in the above step S104 of the present invention, after the sliding speeds of the driving shaft of the vehicle and the antifriction pad are determined, the wear amount of the coating layer of the antifriction pad disposed at the front driving shaft of the vehicle may be determined according to the normal load of the vehicle on the front driving shaft antifriction pad and the sliding speeds of the front driving shaft antifriction pad and the antifriction pad, and the wear amount of the coating layer of the antifriction pad disposed at the rear driving shaft of the vehicle may be determined according to the normal load of the vehicle on the rear driving shaft antifriction pad and the sliding speeds of the rear driving shaft antifriction pad and the antifriction pad, thereby the wear amount of the coating layer of the antifriction pad may be determined.
Alternatively, the wear amount of the coating of the friction reducing shim can be calculated by the following formula (5):
Pw＝k*N*(f*u)a/Vb (5)
where k, a, b may be used to characterize the known coefficients, N may be used to characterize the normal load of the anti-friction pad, f may be used to characterize the natural frequency, u may be used to characterize the coefficient of friction, V may be used to characterize the sliding speed of the drive shaft and the anti-friction pad, pw may be used to characterize the amount of wear of the coating of the anti-friction pad.
Optionally, a calculation model of the wear amount of the coating of the antifriction pad may be preset in a life early-warning module disposed on the cloud platform, where the calculation model may be implemented by the above formula (1) to the above formula (5), so that after the power system torque, the transmission system gear, the lateral acceleration, the longitudinal acceleration, the steering wheel rotation angle, and the vehicle speed signal are sent to the cloud platform through the controller lan bus and the intelligent vehicle-mounted terminal at a predetermined sampling frequency, the wear amount of the coating of the antifriction pad may be calculated by the life early-warning module according to the preset calculation model in the module.
Step S105, based on the abrasion loss, outputting early warning information of the antifriction pad.
In the technical solution provided in the above step S105 of the present invention, after determining the wear amount of the coating of the antifriction pad, the relationship between the wear amount of the coating of the antifriction pad and the wear threshold is determined, that is, the relationship between the wear amount of the coating of the antifriction pad disposed at the front driving axle of the vehicle and the wear threshold is determined, then the early warning information of the antifriction pad disposed at the front driving axle of the vehicle is output, and the relationship between the wear amount of the coating of the antifriction pad disposed at the rear driving axle of the vehicle and the wear threshold is determined, then the early warning information of the antifriction pad disposed at the rear driving axle of the vehicle is output, wherein the early warning information can be used for characterizing that the antifriction pad is in a state about to fail, thereby achieving the purpose of avoiding the fracture of the antifriction pad.
According to the method, the power parameters and the preset parameters of the vehicle are firstly obtained, then the normal load of the vehicle on the front driving shaft antifriction gasket and the normal load of the vehicle on the rear driving shaft antifriction gasket are determined according to the obtained power parameters and the preset parameters, then the first sliding speed is determined according to the mapping relation among the normal load of the vehicle on the front driving shaft antifriction gasket, the friction coefficient and the first sliding speed, the second sliding speed is determined according to the mapping relation among the normal load of the vehicle on the rear driving shaft antifriction gasket, the friction coefficient and the second sliding speed, the abrasion loss of the coating of the first antifriction gasket and the abrasion loss of the coating of the second antifriction gasket can be respectively determined according to the obtained normal load and the obtained sliding speed, finally the relation between the abrasion loss of the coating of the first antifriction gasket and the abrasion threshold is judged, and whether the relation between the abrasion loss of the coating of the second antifriction gasket and the abrasion threshold is required to be reminded to a user or not is determined, so that the purposes of avoiding the friction reduction gasket from being cracked and the service life of the antifriction gasket can be achieved, and the technical problem of early warning treatment can be realized.
The above-described method of this embodiment is further described below.
As an alternative embodiment, step S102, the power parameters include at least one of the following: lateral acceleration, longitudinal acceleration, and powertrain torque, the preset parameters include at least one of: front axle weight, rear axle weight and coefficient of friction, based on power parameter and preset parameter, confirm the normal load of vehicle on antifriction gasket, include: determining a first normal load corresponding to lateral acceleration and front axle weight; a second normal load corresponding to the lateral acceleration and the rear axle weight is determined.
In this embodiment, after the power parameters and the preset parameters of the vehicle are acquired, according to a mapping relationship between the lateral acceleration, the front axle weight and the first normal load, the first normal load corresponding to the lateral acceleration and the front axle weight may be determined, and according to a mapping relationship between the lateral acceleration, the rear axle weight and the second normal load, the second normal load corresponding to the lateral acceleration and the rear axle weight may be determined, where the first normal load may be used to characterize the normal load of the vehicle on the front drive axle antifriction pad, and the second normal load may be used to characterize the normal load of the vehicle on the rear drive axle antifriction pad.
Alternatively, according to the mapping relationship between the lateral acceleration, the front axle weight, and the first normal load, the first normal load corresponding to the lateral acceleration and the front axle weight may be determined, which may be accomplished by the above formula (1).
Alternatively, according to the mapping relationship between the lateral acceleration, the rear axle weight and the second normal load, the second normal load corresponding to the lateral acceleration and the rear axle weight may be determined, which may be accomplished by the above formula (2).
As an alternative embodiment, step S103, determining, based on the normal load, a sliding speed at which the drive shaft of the vehicle slides with the antifriction pads, includes: determining a first sliding speed according to a mapping relation among the first normal load, the friction coefficient and the first sliding speed; and determining the second sliding speed according to the mapping relation among the second normal load, the friction coefficient and the second sliding speed.
In this embodiment, after the first normal load and the second normal load are determined, in the case where the moment of inertia has been determined, a first slip speed may be determined in accordance with a mapping relationship between the first normal load, the coefficient of friction, and the first slip speed, and a second slip speed may be determined in accordance with a mapping relationship between the second normal load, the coefficient of friction, and the second slip speed, wherein the first slip speed may be used to characterize a slip speed at which a front drive shaft and a front drive shaft antifriction pad of the vehicle slip, and the second slip speed may be used to characterize a slip speed at which a rear drive shaft and a rear drive shaft antifriction pad of the vehicle slip.
Alternatively, in the case where the moment of inertia has been determined, the first sliding speed may be determined according to a mapping relationship between the first normal load, the friction coefficient, and the first sliding speed, which may be accomplished by the following formula (3):
wherein c can be used to characterize the front and rear drive axle torque distribution coefficients, rv can be used to characterize the equivalent friction radius, JF can be used to characterize the front drive axle moment of inertia, θ F Te may be used to characterize the powertrain torque, i may be used to characterize the total driveline speed ratio, and VF may be used to characterize the sliding speed of the front drive shaft to front drive shaft anti-friction pad sliding.
Alternatively, in the case where the moment of inertia has been determined, the second sliding speed may be determined according to a mapping relationship between the second normal load, the friction coefficient, and the second sliding speed, which may be accomplished by the following formula (4):
wherein JR may be used to characterize rear drive axle moment of inertia, θ R Can be used to characterize the maximum angular displacement of the rear drive shaft sliding with the anti-friction pad, and VR can be used to characterize the sliding speed of the rear drive shaft sliding with the rear drive shaft anti-friction pad.
As an alternative embodiment, step S104, determining the wear amount of the coating of the friction reducing pad based on the normal load and the sliding speed, includes: determining the abrasion loss of the coating of the first antifriction gasket according to the mapping relation among the first normal load, the first sliding speed and the abrasion loss of the coating of the first antifriction gasket; and determining the abrasion loss of the coating of the second antifriction gasket according to the mapping relation among the second normal load, the second sliding speed and the abrasion loss of the coating of the second antifriction gasket.
In this embodiment, after the first sliding speed and the second sliding speed have been determined, in case the friction coefficient has been determined, the amount of wear of the coating of the first antifriction pad may be determined in accordance with a mapping between the first normal load, the first sliding speed and the amount of wear of the coating of the first antifriction pad, and in accordance with a mapping between the second normal load, the second sliding speed and the amount of wear of the coating of the second antifriction pad, the amount of wear of the coating of the second antifriction pad may be determined, wherein the first antifriction pad may be used for characterizing the antifriction pad provided at the front drive axle of the vehicle and the second antifriction pad may be used for characterizing the antifriction pad provided at the rear drive axle of the vehicle.
Alternatively, the amount of wear of the coating of the first friction reducing pad may be determined from a mapping between the first normal load, the first sliding speed and the amount of wear of the coating of the first friction reducing pad, which may be accomplished by the following formula (6):
P wF ＝k*NF*(f*u) a /(VF) b (6)
where k, a, b may be used to characterize the known coefficients, NF may be used to characterize the normal load of the front drive shaft anti-friction pad, f may be used to characterize the natural frequency, u may be used to characterize the coefficient of friction, VF may be used to characterize the front drive shaft anti-friction with the front drive shaftSliding speed of pad sliding, P wF Can be used to characterize the amount of wear of the coating of the front drive shaft friction reducing pads.
Alternatively, the amount of wear of the coating of the second friction reducing pad may be determined from a mapping between the second normal load, the second sliding speed and the amount of wear of the coating of the second friction reducing pad, which may be accomplished by the following formula (7):
P wR ＝k*NR*(f*u) a /(VR) b (7)
wherein k, a, b can be used to characterize the known coefficients, NR can be used to characterize the normal load of the rear drive shaft anti-friction pad, f can be used to characterize the natural frequency, u can be used to characterize the coefficient of friction, VR can be used to characterize the sliding speed of the rear drive shaft to rear drive shaft anti-friction pad sliding, P wF Can be used to characterize the amount of wear of the coating of the rear drive shaft friction reducing pad.
As an optional embodiment, step S105, outputting, based on the wear amount, early warning information of the antifriction pad, includes: responding to the abrasion loss of the coating of the first antifriction gasket being greater than or equal to an abrasion threshold value, and outputting early warning information of the first antifriction gasket; and outputting early warning information of the second antifriction gasket in response to the abrasion loss of the coating of the second antifriction gasket being greater than or equal to the abrasion threshold.
In this embodiment, after determining the wear amount of the coating of the first antifriction pad and the wear amount of the coating of the second antifriction pad, the relationship between the wear amount of the coating of the antifriction pad and the wear threshold is determined, that is, the relationship between the wear amount of the coating of the first antifriction pad and the wear threshold is determined, if the wear amount of the coating of the first antifriction pad is greater than or equal to the wear threshold, the warning information of the first antifriction pad is output, and the relationship between the wear amount of the coating of the second antifriction pad and the wear threshold is determined, and if the wear amount of the coating of the second antifriction pad is greater than or equal to the wear threshold, the warning information of the second antifriction pad is output, so that the purpose of avoiding chipping of the antifriction pad is achieved.
Optionally, if the wear amount of the coating of the first antifriction pad is smaller than the wear threshold, the first antifriction pad is continuously used, the wear amount of the coating of the first antifriction pad is updated in real time, and when the wear amount of the coating of the first antifriction pad is larger than or equal to the wear threshold, early warning information of the first antifriction pad is output.
Optionally, if the abrasion loss of the coating of the second antifriction gasket is smaller than the abrasion threshold, continuing to use the second antifriction gasket, updating the abrasion loss of the coating of the second antifriction gasket in real time until the abrasion loss of the coating of the second antifriction gasket is larger than or equal to the abrasion threshold, outputting early warning information of the second antifriction gasket,
alternatively, the wear threshold may be calculated by:
P W ＝0.75*(D 2 -d 2 )*t*ρ (8)
wherein D may be used to characterize the anti-friction pad outer diameter, D may be used to characterize the anti-friction pad inner diameter, t may be used to characterize the anti-friction pad coating thickness, and ρ may be used to characterize the anti-friction pad coating density.
As an alternative embodiment, after outputting the early warning information of the antifriction pad based on the wear amount in step S105, the performance detection method of the antifriction pad further includes: and uploading the abrasion loss of the coating of the first antifriction gasket and/or the abrasion loss of the coating of the second antifriction gasket to the cloud platform.
In this embodiment, after the early warning information of the first antifriction pad and the early warning information of the second antifriction pad are output, the wear amount of the coating of the first antifriction pad and/or the wear amount of the coating of the second antifriction pad are uploaded to the cloud platform, then the actual damage of the antifriction pad is calculated by a life correction module arranged on the cloud platform through an image recognition method, and then the wear amount of the coating of the first antifriction pad and/or the wear amount of the coating of the second antifriction pad and the calculated actual damage of the antifriction pad are sent to a database of a host factory, so that the accuracy of a preset algorithm in the life early warning module is evaluated according to data received in the database, and the preset algorithm in the life early warning module is iteratively optimized according to the actual wear condition of the coating of the antifriction pad, wherein the life early warning module can be arranged on the cloud platform, and the life early warning module can be used for determining the wear amount of the coating of the antifriction pad according to the preset algorithm in the cloud platform.
According to the method, the device and the system, the power parameters and the preset parameters of the vehicle are firstly obtained, the normal load of the vehicle on the front driving shaft antifriction gasket and the normal load of the vehicle on the rear driving shaft antifriction gasket are determined according to the obtained power parameters and the preset parameters, then the first sliding speed is determined according to the mapping relation among the normal load of the vehicle on the front driving shaft antifriction gasket, the friction coefficient and the first sliding speed, the second sliding speed is determined according to the mapping relation among the normal load of the vehicle on the rear driving shaft antifriction gasket, the friction coefficient and the second sliding speed, the abrasion loss of the coating of the first antifriction gasket and the abrasion loss of the coating of the second antifriction gasket can be respectively determined according to the obtained normal load and the preset parameters, finally whether the service needs to be reminded to a user or not is determined according to the relation among the abrasion loss of the coating of the second antifriction gasket and the abrasion loss threshold, and therefore the technical problem that early warning treatment is difficult to be carried out on the service life of the antifriction gasket is solved.
Example 2
The technical solution of the embodiment of the present invention will be illustrated in the following with reference to a preferred embodiment.
In the current antifriction gasket application, antifriction gasket parts are usually directly added at the matching surface of a driving shaft and a hub, but related sensors are not arranged in a control system of the whole vehicle, and related monitoring or early warning parts are not arranged in the control system of the whole vehicle, so that the technical problem that early warning treatment is difficult to carry out on the service life of the antifriction gasket is caused. Therefore, a life-span early warning method for the antifriction gasket is needed to ensure that the life-span of the antifriction gasket can be early warned.
In a related art, an intelligent drive axle health monitoring system and method for cloud edge collaborative computing are disclosed, comprising: the vehicle-mounted system comprises an axle operation data acquisition module, a vehicle-mounted edge calculation module, a communication module and an axle cloud fault prediction module; the axle running data acquisition module comprises acquisition and storage of driving axle housing data information; the vehicle-mounted edge calculation module is used for carrying out data arrangement and logic judgment on the data; the communication module is used for transmitting the data in the axle operation data acquisition module to the vehicle-mounted edge calculation module and transmitting the data in the vehicle-mounted edge calculation module to the axle cloud fault prediction module; the axle cloud fault prediction module is used for analyzing big data of the data and issuing fault prediction. But the system only comprises an axle operation data acquisition module, an on-vehicle edge calculation module, a communication module and an axle cloud fault prediction module, and cannot monitor and calculate the abrasion loss of the coating of the antifriction gasket in real time, so that the service life of the antifriction gasket is difficult to guarantee to be subjected to early warning treatment.
In another related technology, a method, a system, a medium and equipment for predicting real-time fatigue life of a wind turbine shafting are disclosed, comprising: the service life prediction method and system of the newly-operated fan shafting and the service life prediction method and system of the historical fan shafting comprise the following steps: acquiring fan operation parameters to form a wind speed-turbulence matrix; inputting a wind speed-turbulence matrix into a pre-constructed shafting wind speed-turbulence combined fatigue damage matrix model to obtain a real-time fatigue damage value of a shaft system; and carrying out accumulated analysis on the real-time fatigue damage value in the operation period to obtain the fatigue life of the wind turbine shafting. However, the method only carries out accumulated analysis on the real-time fatigue damage value in the operation period, and cannot monitor and calculate the abrasion loss of the coating of the antifriction gasket in real time, so that the service life of the antifriction gasket is difficult to ensure to carry out early warning treatment.
However, the embodiment of the invention provides a life early warning method for the antifriction gasket, which can identify the life of the antifriction gasket in advance by monitoring and calculating the abrasion loss of the coating of the antifriction gasket in real time, so that the purpose of avoiding fragmentation of the antifriction gasket is achieved, and the technical problem that the life of the antifriction gasket is difficult to carry out early warning treatment is solved.
FIG. 2 (a) is a schematic illustration of an antifriction shim structure in accordance with an embodiment of the present invention, as shown in FIG. 2 (a), which may include: a half nut 201, a hub bearing 202, anti-friction washers 203 and a drive shaft 204.
FIG. 2 (b) is a schematic illustration of another friction reducing shim structure according to an embodiment of the present invention, as shown in FIG. 2 (b), the schematic illustration being a cross-sectional view of the friction reducing shim structure, wherein the friction reducing shim structure may include: a half nut 201, a hub bearing 202, anti-friction washers 203 and a drive shaft 204.
FIG. 3 is a schematic diagram of an antifriction pad life warning system based on cloud data according to an embodiment of the invention, as shown in FIG. 3, the system may include: the system comprises a data communication unit 301, a controller local area network 302, an intelligent vehicle-mounted terminal 303, a cloud platform 304, an early warning system 305, a host factory 306, a maintenance unit 307, a user 308 and a meter 309, wherein the data communication unit 301 can be connected with the controller local area network 302, the controller local area network 302 can be connected with the intelligent vehicle-mounted terminal 303, the intelligent vehicle-mounted terminal 303 can be connected with the cloud platform 304, the cloud platform 304 can be connected with the early warning system 305, the early warning system 305 can be connected with the host factory 306, the host factory 306 can be connected with the maintenance unit 307, the maintenance unit 307 can be connected with the user 308, and the user 308 can be connected with the meter 309.
Alternatively, the data communication unit 301 may transmit data information such as powertrain torque, driveline gear, lateral acceleration, longitudinal acceleration, steering wheel angle, and vehicle speed to the controller area network 302.
Optionally, the antifriction pad life early warning system may be implemented by:
step one, acquiring a big data signal and a whole vehicle parameter, wherein the big data signal can comprise at least one of the following: the powertrain torque Te, the driveline gear G, the lateral acceleration ay, the longitudinal acceleration ax, the steering wheel angle θ, and the vehicle speed Ve, and the vehicle parameters may include at least one of: the weight Q of the whole vehicle, the weight QF of a front axle, the weight QR of a rear axle and the rolling radius Rd of a tire.
Calculating the normal load of the antifriction gasket by the following formula:
NF＝Fb+QF*ay (1)
NR＝Fb+QR*ay (2)
wherein Fb can be used to characterize the axle force generated after installation of the half axle nut, QF can be used to characterize the front axle weight, NF can be used to characterize the normal load of the front drive axle antifriction pad, QR can be used to characterize the rear axle weight, ay can be used to characterize the lateral acceleration, NR can be used to characterize the normal load of the rear drive axle antifriction pad.
Step three, calculating the sliding speed of the vehicle by the following formula:
Wherein c can be used to characterize the front and rear drive axle torque distribution coefficients, rv can be used to characterize the equivalent friction radius, JF can be used to characterize the front drive axle moment of inertia, JR can be used to characterize the rear drive axle moment of inertia, θ F Can be used for representing the maximum angular displacement of the front driving shaft and the sliding of the antifriction gasket, theta R The device can be used for representing the maximum angular displacement of the sliding of the rear driving shaft and the antifriction gasket, te can be used for representing the torque of a power system, i can be used for representing the total speed ratio of the transmission system, VF can be used for representing the sliding speed of the sliding of the front driving shaft and the antifriction gasket of the front driving shaft, and VR can be used for representing the sliding speed of the sliding of the rear driving shaft and the antifriction gasket of the rear driving shaft.
Alternatively, when VF or VR < 0, then the powertrain torque Te is considered insufficient to slip the friction reducing pads against the hub bearing interface, and the amount of wear of the friction reducing pads' coating is not calculated.
Step four, calculating the abrasion loss of the coating of the antifriction gasket through the following formula:
Pw＝k*N*(f*u) a /V b (5)
where k, a, b may be used to characterize the known coefficients, N may be used to characterize the normal load of the anti-friction pad, f may be used to characterize the natural frequency, u may be used to characterize the coefficient of friction, V may be used to characterize the sliding speed of the drive shaft and the anti-friction pad, pw may be used to characterize the amount of wear of the coating of the anti-friction pad.
Optionally, the wear amount of the coating of the antifriction pad is calculated in real time and accumulated.
Optionally, the life early-warning system for the antifriction gasket CAN include a life early-warning subsystem and a life correction subsystem, wherein in the life early-warning subsystem, power system torque, transmission system gear, lateral acceleration, longitudinal acceleration, steering wheel rotation angle and vehicle speed signals CAN be sent to a cloud platform through a controller area network (Controller Area Network, abbreviated as CAN) bus and a smart vehicle-mounted terminal (abbreviated as T-Box) at a preset sampling frequency, a life early-warning module is arranged on the cloud platform, the life early-warning module calculates the abrasion amount of a coating of the antifriction gasket according to an algorithm in the five steps, then the abrasion amount of the coating of the antifriction gasket is sent and recorded in a database of a host factory, and when the residual mileage is 1 ten thousand kilometers (or is set according to the host factory), maintenance information is pushed to a maintenance shop to inform a user of store maintenance, wherein the maintenance information CAN be simultaneously displayed on an instrument through the cloud platform, the T-Box and the CAN bus to remind the user of maintenance; in the life correction subsystem, high-definition photos of the antifriction gaskets, residual moment of half-axle nuts and fault mileage are recorded, the information is uploaded to a cloud platform, an actual damage of the antifriction gaskets is calculated by a life correction module in the cloud platform through an image recognition method according to a preset program, then the actual damage of the antifriction gaskets and accumulated damage of the antifriction gaskets calculated by a life early-warning module are sent to a database of a host factory, accuracy of a preset algorithm in the life early-warning module is evaluated according to data in the database, and accordingly iterative optimization is carried out on the preset algorithm in the life early-warning module according to actual conditions.
Alternatively, by judging the relation between the total wear amount of the coating layer of the friction reducing pad obtained by the accumulation calculation and the wear threshold value, it is possible to determine whether the remaining mileage is 1 ten thousand kilometers, and thus it is possible to determine whether the user needs to be reminded of maintenance, that is, if the total wear amount of the coating layer of the friction reducing pad obtained by the accumulation calculation exceeds the wear threshold value, it is determined that the remaining mileage is 1 ten thousand kilometers, the user needs to be reminded of maintenance, and if the total wear amount of the coating layer of the friction reducing pad obtained by the accumulation calculation does not exceed the wear threshold value, it is determined that the remaining mileage is not 1 ten thousand kilometers, and the user does not need to be reminded of maintenance.
Alternatively, the wear threshold may be calculated by:
P W ＝0.75*(D 2 -d 2 )*t*ρ(8)
wherein D may be used to characterize the anti-friction pad outer diameter, D may be used to characterize the anti-friction pad inner diameter, t may be used to characterize the anti-friction pad coating thickness, and ρ may be used to characterize the anti-friction pad coating density.
In this embodiment, first, a big data signal and a whole vehicle parameter are obtained, then, according to the big data signal and the whole vehicle parameter, a normal load of a front driving shaft antifriction gasket and a normal load of a rear driving shaft antifriction gasket can be determined, then, according to the normal load of the front driving shaft antifriction gasket, a sliding speed of the front driving shaft and the antifriction gasket can be calculated, and according to the normal load of the rear driving shaft antifriction gasket, a sliding speed of the rear driving shaft and the antifriction gasket can be calculated, finally, according to the normal load and the sliding speed, a wear amount of a coating of the antifriction gasket can be calculated, and the wear amount of the coating of the antifriction gasket is compared with a wear threshold value, thereby determining whether a user needs to be reminded of maintenance, thereby solving the technical problem that early warning treatment is difficult to be performed on the service life of the antifriction gasket, and achieving the technical effect that early warning treatment can be performed on the service life of the antifriction gasket.
Example 3
According to the embodiment of the invention, a performance detection device of the antifriction gasket is also provided. The performance test device for a friction reducing pad may be used to perform the performance test method for a friction reducing pad in embodiment 1.
FIG. 4 is a schematic illustration of a performance testing apparatus for friction reducing shims according to an embodiment of the present invention. As shown in fig. 4, a performance test apparatus 400 for an antifriction pad may include: an acquisition unit 401, a first determination unit 402, a second determination unit 403, a third determination unit 404, and an output unit 405.
The acquiring unit 401 is configured to acquire a power parameter of the vehicle and a preset parameter, where the power parameter is used to represent running state information of the vehicle, and the preset parameter is used to represent component information of the vehicle.
A first determining unit 402 is configured to determine a normal load of the vehicle on the friction reducing pads based on the power parameter and a preset parameter.
A second determining unit 403 for determining the sliding speed of the driving shaft of the vehicle with the antifriction pads based on the normal load.
A third determining unit 404 for determining the amount of wear of the coating of the friction reducing pads based on the normal load and the sliding speed.
And the output unit 405 is configured to output early warning information of the antifriction pad based on the wear amount, where the early warning information is used to characterize that the antifriction pad is in a state about to fail.
Alternatively, the first determining unit 402 may include: a first determination module for determining a first normal load corresponding to lateral acceleration and front axle weight, wherein the first normal load is used to characterize a normal load on a front drive axle friction reducing pad of a vehicle; and a second determination module for determining a second normal load corresponding to the lateral acceleration and the rear axle weight, wherein the second normal load is used to characterize the normal load of the vehicle on the rear drive axle friction reducing pads.
Alternatively, the second determining unit 403 may include: the third determining module is used for determining a first sliding speed according to a mapping relation among a first normal load, a friction coefficient and the first sliding speed, wherein the first sliding speed is used for representing the sliding speed of the front driving shaft of the vehicle and the front driving shaft antifriction gasket; and the fourth determining module is used for determining a second sliding speed according to the mapping relation among the second normal load, the friction coefficient and the second sliding speed, wherein the second sliding speed is used for representing the sliding speed of the sliding of the rear driving shaft and the rear driving shaft antifriction pad of the vehicle.
Alternatively, the third determining unit 404 may include: a fifth determining module, configured to determine an amount of wear of a coating of a first antifriction pad according to a mapping relationship between a first normal load, a first sliding speed, and the amount of wear of the coating of the first antifriction pad, where the first antifriction pad is used to characterize an antifriction pad disposed at a front drive axle of a vehicle; and a sixth determining module, configured to determine an amount of wear of a coating of the second antifriction pad according to a mapping relationship between the second normal load, the second sliding speed, and the amount of wear of the coating of the second antifriction pad, where the second antifriction pad is used to characterize an antifriction pad disposed at a rear drive axle of the vehicle.
Alternatively, the output unit 405 may include: the first response module is used for responding to the fact that the abrasion loss of the coating of the first antifriction gasket is larger than or equal to the abrasion threshold value and outputting early warning information of the first antifriction gasket; and the second response module is used for responding to the abrasion loss of the coating of the second antifriction gasket to be larger than or equal to the abrasion threshold value and outputting early warning information of the second antifriction gasket.
Optionally, the performance detecting apparatus 400 for antifriction pads may further include: and the uploading unit is used for uploading the abrasion loss of the coating of the first antifriction gasket and/or the abrasion loss of the coating of the second antifriction gasket into the cloud platform.
In this embodiment, the acquiring unit is configured to acquire a power parameter of the vehicle and a preset parameter, where the power parameter is used to represent running state information of the vehicle, and the preset parameter is used to represent component information of the vehicle; the first determining unit is used for determining the normal load of the vehicle on the antifriction gasket based on the power parameter and the preset parameter; a second determining unit for determining a sliding speed at which the drive shaft of the vehicle slides with the antifriction pads based on the normal load; a third determining unit for determining an amount of wear of the coating of the antifriction pad based on the normal load and the sliding speed; the output unit is used for outputting early warning information of the antifriction gasket based on the abrasion loss, wherein the early warning information is used for representing the state that the antifriction gasket is about to lose efficacy, the technical problem that early warning treatment is difficult to be carried out on the service life of the antifriction gasket is solved, and the technical effect that early warning treatment can be carried out on the service life of the antifriction gasket is achieved.
Example 4
According to an embodiment of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program performs the performance detection method of the friction reducing pad in embodiment 1.
Example 5
According to an embodiment of the present invention, there is also provided a processor for running a program, wherein the program, when run by the processor, performs the performance detection method of the friction reducing pad in embodiment 1.
Example 6
According to an embodiment of the present invention, there is also provided a vehicle for performing the performance test method of any one of the friction reducing pads of embodiment 1.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of units may be a logic function division, and there may be another division manner in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-only memory (ROM), a random access memory (RAM, randomAccessMemory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (10)

1. The performance detection method of the antifriction gasket is characterized by comprising the following steps of:
acquiring power parameters and preset parameters of a vehicle, wherein the power parameters are used for representing running state information of the vehicle, and the preset parameters are used for representing component information of the vehicle;
determining a normal load of the vehicle on the antifriction pad based on the power parameter and the preset parameter;
determining a sliding speed at which a drive shaft of the vehicle slides with the anti-friction shims based on the normal load;
determining an amount of wear of a coating of the friction reducing shim based on the normal load and the sliding speed;
and outputting early warning information of the antifriction gasket based on the abrasion loss, wherein the early warning information is used for representing that the antifriction gasket is in a state about to lose efficacy.
2. The method of claim 1, wherein the power parameter comprises at least one of: lateral acceleration, longitudinal acceleration, and powertrain torque, the preset parameters including at least one of: front axle weight, rear axle weight and coefficient of friction, based on the power parameter and the preset parameter, determining a normal load of the vehicle on the antifriction pad comprises:
Determining a first normal load corresponding to the lateral acceleration and the front axle weight, wherein the first normal load is used to characterize a normal load of the vehicle on a front drive axle friction reducing pad;
a second normal load corresponding to the lateral acceleration and the rear axle weight is determined, wherein the second normal load is used to characterize a normal load of the vehicle on a rear drive axle friction reducing pad.
3. The method of claim 2, wherein determining the sliding speed of the vehicle based on the normal load comprises:
determining a first sliding speed according to the mapping relation among the first normal load, the friction coefficient and the first sliding speed, wherein the first sliding speed is used for representing the sliding speed of the front driving shaft of the vehicle and the front driving shaft antifriction gasket;
and determining a second sliding speed according to the second normal load, the friction coefficient and the mapping relation between the second sliding speed, wherein the second sliding speed is used for representing the sliding speed of the rear driving shaft of the vehicle and the antifriction pad of the rear driving shaft.
4. A method according to claim 3, wherein determining the amount of wear of the coating of the friction reducing shim based on the normal load and the sliding speed comprises:
Determining the wear amount of the coating of the first antifriction pad according to the mapping relation among the first normal load, the first sliding speed and the wear amount of the coating of the first antifriction pad, wherein the first antifriction pad is used for representing the antifriction pad arranged at the front driving shaft of the vehicle;
and determining the abrasion loss of the coating of the second antifriction gasket according to the mapping relation among the second normal load, the second sliding speed and the abrasion loss of the coating of the second antifriction gasket, wherein the second antifriction gasket is used for representing the antifriction gasket arranged at the rear driving shaft of the vehicle.
5. The method of claim 4, wherein outputting the pre-warning information of the friction reducing pad based on the wear amount comprises:
outputting early warning information of the first antifriction gasket in response to the abrasion loss of the coating of the first antifriction gasket being greater than or equal to an abrasion threshold;
and outputting early warning information of the second antifriction gasket in response to the abrasion loss of the coating of the second antifriction gasket being greater than or equal to the abrasion threshold.
6. The method of claim 5, after outputting the pre-warning information of the friction reducing pads based on the wear amount, the method further comprising:
And uploading the abrasion loss of the coating of the first antifriction gasket and/or the abrasion loss of the coating of the second antifriction gasket to a cloud platform.
7. A performance testing device for an antifriction pad, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring power parameters and preset parameters of a vehicle, the power parameters are used for representing running state information of the vehicle, and the preset parameters are used for representing component information of the vehicle;
the first determining unit is used for determining the normal load of the vehicle on the antifriction gasket based on the power parameter and the preset parameter;
a second determining unit configured to determine a sliding speed at which a drive shaft of the vehicle slides with the antifriction pads, based on the normal load;
a third determining unit for determining an amount of wear of a coating of the antifriction pad based on the normal load and the sliding speed;
and the output unit is used for outputting early warning information of the antifriction gasket based on the abrasion loss, wherein the early warning information is used for representing that the antifriction gasket is in a state about to lose efficacy.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to perform the performance detection method of an antifriction pad according to any one of claims 1 to 6.
9. A processor for running a program, wherein the program when run by the processor performs the performance detection method of the friction reducing pad of any one of claims 1 to 6.
10. A vehicle for performing the performance test method of the friction reducing pad according to any one of claims 1 to 6.
CN202310546052.8A 2023-05-15 2023-05-15 Antifriction gasket performance detection method and device, storage medium and vehicle Pending CN116448403A (en)

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