CN117491022A

CN117491022A - Method and device for determining damage of flexible disk of engine and readable storage medium

Info

Publication number: CN117491022A
Application number: CN202311470849.0A
Authority: CN
Inventors: 甄雷; 王继磊; 耿洪刚; 张舒
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2023-11-06
Filing date: 2023-11-06
Publication date: 2024-02-02

Abstract

The application provides a method, a device and a readable storage medium for determining damage of an engine flexible disk, wherein the method comprises the following steps: obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of an engine and the rotating speed of a turbine of the engine; acquiring crankshaft rotational speed acceleration, wherein the crankshaft rotational speed acceleration is the acceleration of a crankshaft of the engine; and determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the method, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

Description

Method and device for determining damage of flexible disk of engine and readable storage medium

Technical Field

The present invention relates to the field of determination of engine flexible disk damage, and more particularly, to a method for determining engine flexible disk damage, an apparatus for determining engine flexible disk damage, a computer-readable storage medium, and an engine.

Background

The flexible disk of the engine is usually arranged between the crankshaft of the engine and the hydraulic torque converter (i.e. turbine) of the gearbox, and is often damaged due to the conditions of improper assembly, unbalanced tightening torque or bad using working conditions, etc., and the common failure modes have the problems of cracks (radial direction), broken shafts, etc., so that the prior art cannot accurately determine whether the flexible disk of the engine is damaged.

Disclosure of Invention

The main object of the present application is to provide a method for determining damage to an engine flexible disc, a device for determining damage to an engine flexible disc, a computer readable storage medium and an engine, so as to at least solve the problem that whether the engine flexible disc is damaged or not cannot be determined accurately in the prior art.

In order to achieve the object, according to one aspect of the present application, there is provided a method for determining damage to an engine flexible disk, including: obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of an engine and the rotating speed of a turbine of the engine; acquiring crankshaft rotational speed acceleration, wherein the crankshaft rotational speed acceleration is rotational speed acceleration of a crankshaft of the engine; and determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration.

Optionally, determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration includes: acquiring a first calibration value, wherein the first calibration value is a preset value of the target rotating speed difference value under the condition that a flexible disc of the engine is not damaged; obtaining a second calibration value, wherein the second calibration value is a preset value of the rotational speed and the acceleration of the crankshaft under the condition that a flexible disc of the engine is not damaged; and determining that the flexible disc of the engine is damaged when the target rotational speed difference is greater than or equal to the first calibration value and/or the crankshaft rotational speed acceleration is greater than or equal to the second calibration value.

Optionally, determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration includes: acquiring a target integral value, wherein the target integral value is an actual integral value of a difference value of a target rotational speed of a target vehicle, and the engine is installed in the target vehicle; obtaining a calibration integral value, wherein the calibration integral value is the calibration integral value of the target rotating speed difference value under the condition that the target vehicle runs for the first preset distance and the flexible disc of the engine is not damaged; determining a flex disc damage of the engine in the case where the actual integrated value is greater than the calibrated integrated value; and determining that the flexible disk of the engine is not damaged under the condition that the actual integrated value is smaller than or equal to the calibrated integrated value.

Optionally, the method further comprises: acquiring a first power integral value, wherein the first power integral value is an integral value of power of an engine under the condition that a target vehicle runs for a second preset distance and a flexible disc of the engine is not damaged, and the engine is installed in the target vehicle; acquiring a second power integral value, wherein the second power integral value is an integral value of the power of the engine when the target vehicle runs by the second preset distance, and the time for acquiring the first power integral value is earlier than the time for acquiring the second power integral value; and determining the residual life of the flexible disc of the engine at the current moment according to at least the first power integral value and the second power integral value, wherein the current moment is the moment of acquiring the second power integral value.

Optionally, determining the remaining life of the flexible disc of the engine at the current time at least according to the first power integration value and the second power integration value includes: obtaining a target mileage difference value, wherein the target mileage difference value is the total mileage of the target vehicle in a target time period, the initial time of the target time period is the time of obtaining the first power integral value, and the end time of the target time period is the time of obtaining the second power integral value; acquiring a power integration difference value, wherein the power integration difference value is the difference value between the first power integration and the second power integration; determining a target coefficient according to the target mileage difference value and the power integration difference value, wherein the target coefficient is the ratio of the target mileage difference value to the power integration difference value; acquiring a power integration threshold value, wherein the power integration threshold value is the maximum power integration value of the normal work of a flexible plate of the engine; determining a target integral difference value according to the power integral threshold and the second power integral value, wherein the target integral difference value is an absolute value of a difference value between the power integral threshold and the second power integral value; and determining the remaining mileage of the vehicle according to the target integral difference value and the target coefficient, wherein the remaining mileage of the vehicle is the product of the target integral difference value and the target coefficient, and the remaining mileage of the vehicle represents the remaining life of the flexible board of the engine at the current moment.

Optionally, acquiring the second power integration value includes: acquiring a rotating speed difference average value, wherein the rotating speed difference average value is the average value of the target rotating speed difference value in the time of the second preset distance of the target vehicle; acquiring a torque average value, wherein the torque average value is the average value of the torque of the engine in the time of the target vehicle running for a second preset distance; determining a product of the rotational speed difference average and the torque average as an engine power value; and integrating the engine power value to obtain the second power integrated value.

Optionally, after determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, the method further includes: the method comprises the steps of sending prompt information, wherein the prompt information comprises first processing information and second processing information, the first processing information is information for prompting a user to reduce the acceleration frequency of the engine and/or information for prompting the user to reduce the deceleration frequency of the engine, and the second processing information is information for prompting the user to reduce the acceleration of the engine during acceleration and/or information for prompting the user to reduce the acceleration of the engine during deceleration.

According to another aspect of the present application, there is provided an apparatus for determining damage to an engine flexible disk, comprising: a first acquisition unit configured to acquire a target rotational speed difference value, the target rotational speed difference value being a difference value between a crankshaft rotational speed of an engine and a turbine rotational speed of the engine; a second acquisition unit configured to acquire a rotational speed acceleration of a crankshaft, the rotational speed acceleration of the crankshaft being a rotational speed acceleration of a crankshaft of the engine; and the determining unit is used for determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration.

According to another aspect of the present application, there is provided a computer readable storage medium, the computer readable storage medium including a stored program, wherein when the program is run, the apparatus in which the computer readable storage medium is located is controlled to perform any one of the methods for determining the damage of the flexible disk of the engine.

According to another aspect of the present application, there is provided an engine including: one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising a method for performing any of the engine flexible disk injuries.

By applying the technical scheme, the method for determining the damage of the flexible disk of the engine comprises the steps of firstly obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of the engine and the rotating speed of a turbine of the engine; then acquiring the rotating speed acceleration of the crankshaft, wherein the rotating speed acceleration of the crankshaft is the acceleration of the crankshaft of the engine; and finally, determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the method, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 illustrates a flow diagram of a method for determining engine flexible disk damage provided in accordance with an embodiment of the present application;

FIG. 2 illustrates a schematic structural view of a flexible disk and engine gearbox provided in accordance with an embodiment of the present application;

FIG. 3 illustrates a schematic structural view of a flexible disk provided in accordance with an embodiment of the present application;

FIG. 4 illustrates a flow diagram of another method for determining engine flexible disk damage provided in accordance with an embodiment of the present application;

FIG. 5 illustrates a flow diagram of yet another method for determining engine flexible disc damage provided in accordance with an embodiment of the present application;

FIG. 6 illustrates a flow diagram of yet another method for determining engine flexible disk damage provided in accordance with an embodiment of the present application;

fig. 7 shows a block diagram of a device for determining damage to an engine flexible disk according to an embodiment of the present application.

Wherein the above figures include the following reference numerals:

01. an engine; 02. a crankshaft; 03. a flexible disc; 04. a torque converter; 05. a gear box.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application 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 in order to describe the embodiments of the present application 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.

For convenience of description, the following will describe some terms or terms related to the embodiments of the present application:

engine flexible disk: also known as a crankshaft vibration dampener, is a device for reducing engine vibration and noise. Wheels are an important component in the engine drive train, typically mounted between the engine and the transmission;

and (3) ECU: electronic control unit engine control unit for receiving the engine sensor signal and controlling the action of the executing mechanism;

Torque converter: consists of a pump wheel, a turbine wheel and a guide wheel. The pump wheel is connected with the driving shaft, and can convert mechanical energy input by the driving shaft into kinetic energy of liquid and a pressure head by virtue of centrifugal force, so that the turbine can apply work. The turbine is connected with the driven shaft, and can output the kinetic energy of the liquid and the energy contained in the pressure head from the driven shaft.

As described in the background art, in order to solve the problem that in the prior art, whether the flexible disk of the engine is damaged cannot be accurately determined, embodiments of the present application provide a method for determining damage to the flexible disk of the engine, a device for determining damage to the flexible disk of the engine, a computer readable storage medium, and an engine.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In this embodiment, a method of determining damage to an engine flexible disk operating on an engine is provided, it being noted that the steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer executable instructions, and that although a logical sequence is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in a different order than that illustrated herein.

FIG. 1 is a flow chart of a method of determining engine flexible disc damage according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:

step S101, obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of an engine and the rotating speed of a turbine of the engine;

specifically, the crankshaft of the engine is a power source, that is, when the engine works, the engine powers the crankshaft to rotate the crankshaft, then the crankshaft and the torque converter are connected through the flexible disc, the crankshaft drives the torque converter to rotate through the flexible disc, and the torque converter comprises a turbine, so that the crankshaft rotation speed of the engine and the turbine rotation speed of the engine are almost the same under the condition that the flexible disc works normally. The engine flexible disc is usually arranged between the engine crankshaft and the gearbox hydraulic torque converter, and is often damaged due to the conditions of improper assembly, unbalanced tightening torque or bad use working conditions, and common failure modes have the problems of cracking (radial direction), shaft breakage and the like.

The crankshaft is the most important component in an engine. The engine is used for bearing the force transmitted by the connecting rod, converting the force into torque, outputting the torque through the crankshaft and driving other accessories on the engine to work. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, periodically-changed gas inertia force and reciprocating inertia force, so that the crankshaft is subjected to bending torsion load. Therefore, the crankshaft is required to have enough strength and rigidity, and the journal surface needs to be wear-resistant, uniform in work and good in balance.

The basic parts of the hydraulic torque converter mainly comprise a pump impeller, a guide wheel and a turbine. The pump wheel is arranged on the hydraulic torque converter shell, and the working state of the pump wheel is controlled by the engine output shaft because the pump wheel is in a rigid connection form with the engine output shaft; the turbine is directly connected with the input shaft of the speed changer, and the endless power is provided for the speed changer; the guide wheel is positioned between the turbine and the pump wheel and consists of a fixed shaft support and a unidirectional free wheel, and the unidirectional free wheel allows the guide wheel and the output shaft of the engine to rotate in the same direction.

The torque converter mainly uses oil to transfer power and torque under the circulation flow of pump impeller-turbine-guide wheel-pump impeller. When the automobile is in an idle state, only the pump wheel rotates to apply work, and the turbine is relatively stationary. When the turbine starts to rotate, it is observed whether it is powering the transmission. If the hydraulic oil is in centrifugal motion, the hydraulic oil continuously impacts the turbine blades, but the direction of the hydraulic oil which is impacted by the turbine blade impacts the guide wheel is opposite to the rotation direction of the engine output shaft, and the guide wheel is fixed at the moment. Meanwhile, because of the special blade shape of the guide wheel, the direction of the oil flowing back to the pump wheel from the guide wheel impacts the pump wheel blade is consistent with the rotation direction of the engine output shaft. This provides the torque required to start the vehicle. When the automobile runs at a high speed, the direction of oil flushed from the turbine impacting the guide wheel and the rotation direction of the output shaft of the engine gradually tend to be consistent, so that the guide wheel starts to slowly rotate and simultaneously gradually loses the torque increasing effect.

Fig. 2 is a schematic structural diagram of the flexible disc and the engine gearbox, and the specific structure is shown in fig. 2, wherein the flexible disc 03 is the only medium connecting the crankshaft 02 and the hydraulic torque converter 04, and torque is transmitted through the flexible disc 03. The outer ring of the flexible disk 03 is connected with the hydraulic torque converter 04 through bolts, the inner ring of the flexible disk 03 is connected with the crankshaft 02, and when the crankshaft 02 rotates, the flexible disk drives the hydraulic torque converter to rotate. The engine 01 is connected with the crankshaft 02, the engine 01 supplies power to the crankshaft 02 to enable the crankshaft 02 to rotate, the crankshaft 02 is connected with the flexible disc 03, the flexible disc 03 is connected with the hydraulic torque converter 04, the hydraulic torque converter 04 is connected with the gearbox 05, and the crankshaft 02 drives the hydraulic torque converter 04 to rotate through the flexible disc 03.

Fig. 3 shows a schematic structural view of a flexible disc provided according to an embodiment of the present application, i.e. a schematic structural view of an engine flexible disc is shown in fig. 3.

Step S102, acquiring a crankshaft rotational speed acceleration, wherein the crankshaft rotational speed acceleration is the rotational speed acceleration of a crankshaft of the engine;

specifically, in general, the greater the acceleration of the crankshaft rotational speed, the greater the deflection (i.e., degree of deformation) of the flexible disk of the engine. When the acceleration of the rotating speed of the crankshaft is too large, the bearing capacity of the flexible disc of the engine is exceeded, the flexible disc of the engine is deformed and damaged, and the flexible disc of the engine is seriously broken and cannot work, so that great potential safety hazards exist, and the safety of the system is reduced. Therefore, the rotational speed and the acceleration of the crankshaft are required to be strictly controlled, and the normal operation of the engine flexible disc is ensured.

Step S103, determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration.

In particular, since the flexible disk is the only medium connecting the crankshaft and the gearbox, torque is transferred through the flexible disk. The outer ring of the flexible disc is connected with the hydraulic torque converter through bolts, the inner ring of the flexible disc is connected with the crankshaft, when the crankshaft rotates, the hydraulic torque converter is driven to rotate through the flexible disc, and the hydraulic torque converter comprises a turbine, so that the crankshaft rotating speed of the engine and the turbine rotating speed of the engine are almost the same under the condition that the flexible disc works normally without damage, namely, the target rotating speed difference value is almost zero, and therefore whether the flexible disc of the engine is damaged or not can be judged according to the target rotating speed difference value. In addition, in general, the greater the acceleration of the crankshaft speed, the greater the deflection (i.e., deformation degree) of the flexible disk of the engine, that is, the deflection (i.e., deformation degree) of the flexible disk of the engine may be determined according to the magnitude of the acceleration of the crankshaft speed, and if the deflection (i.e., deformation degree) of the flexible disk of the engine is increased to a certain threshold value, the damage of the flexible disk of the engine is proved, and if the deflection (i.e., deformation degree) of the flexible disk of the engine is increased to a greater threshold value, the flexible disk of the engine may be disconnected from the shaft and may not be continued.

The specific implementation step for determining whether the flexible disk of the engine is damaged or not according to the magnitude of the target rotational speed difference value and/or the magnitude of the crankshaft rotational speed acceleration comprises the following steps:

step S201, obtaining a first calibration value, wherein the first calibration value is a preset value of the target rotating speed difference value under the condition that a flexible disc of the engine is not damaged;

step S202, obtaining a second calibration value, wherein the second calibration value is a preset value of the rotational speed and the acceleration of the crankshaft under the condition that a flexible disc of the engine is not damaged;

step S203, determining that the flexible disk of the engine is damaged when the target rotational speed difference is greater than or equal to the first calibration value and/or the crankshaft rotational speed acceleration is greater than or equal to the second calibration value.

Specifically, only when the target rotational speed difference is greater than or equal to the first calibration value or the crankshaft rotational speed acceleration is greater than or equal to the second calibration value, the damage to the flexible disk of the engine is determined, the state of the flexible disk of the engine can be rapidly determined in a short time (i.e. no damage exists), the determination efficiency is improved, the ECU calculation force is saved, and the state of the flexible disk of the engine can be accurately determined (i.e. no damage exists) while the efficiency is high and energy is saved. And when the target rotational speed difference is greater than or equal to the first calibration value and the crankshaft rotational speed acceleration is greater than or equal to the second calibration value, determining that the flexible disk of the engine is damaged requires monitoring both parameters at the same time, and determining that the flexible disk of the engine is damaged if both parameters meet the condition, so that the efficiency is higher than the accuracy, which is a problem that the state of the flexible disk of the engine (i.e., having erroneous damage) is misjudged due to deviation of one of the parameters, although more time is required than the scheme that only one parameter is required to determine whether the flexible disk of the engine is damaged, the efficiency is not higher than the scheme that only one parameter is required to determine whether the flexible disk of the engine is damaged, and more calculation force is required, but the scheme that only two parameters are required to determine whether the flexible disk of the engine is damaged can avoid misjudgment, i.e., the problem that in some cases, the state of the flexible disk of the engine (i.e., having erroneous damage) is avoided due to deviation of one of the parameters is higher.

As shown in fig. 4, the engine ECU first obtains the engine crankshaft speed and the turbine speed, then calculates the difference between the engine crankshaft speed and the turbine speed as a target speed difference, calculates the acceleration of the engine crankshaft speed as a crankshaft speed acceleration, compares the target speed difference with a first calibration value, and compares the crankshaft speed acceleration with a second calibration value to determine whether the engine is damaged.

The specific implementation step of determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotational speed difference value and/or the magnitude of the crankshaft rotational speed acceleration further comprises the following steps:

step S301, obtaining a target integral value, wherein the target integral value is an actual integral value of a difference value of a target rotational speed of a target vehicle, and the engine is installed in the target vehicle;

step S302, obtaining a calibration integral value, wherein the calibration integral value is the calibration integral value of the target rotating speed difference value under the condition that the target vehicle runs for the first preset distance and a flexible disc of the engine is not damaged;

step S303, determining the damage of the flexible disk of the engine when the actual integral value is larger than the calibration integral value;

Step S304, when the actual integral value is less than or equal to the calibration integral value, determining that the flexible disk of the engine is not damaged.

Specifically, as shown in fig. 5, the driving distance of the vehicle is calibrated, each time the vehicle drives a first preset distance is a distance window, a target integral value in the distance window is calculated, the target integral value is compared with a calibration integral value, and whether the flexible disk of the engine is damaged or not is determined according to the sizes of the target integral value and the calibration integral value. Therefore, the accurate determination of the judgment can be improved, the problem that misjudgment can occur when the determination is performed only according to the transient parameters is avoided, and the problem that errors occur in the judgment of the state (with no damage) of the flexible disk of the engine due to errors in the measurement of the transient data in some cases is avoided. For example: the first preset distance is 5km, a target integral value is calculated every time the vehicle runs for 5km, the target integral value is compared with a calibration integral value, whether the flexible disk of the engine is damaged or not at the current moment is judged, then the vehicle runs for 5km again, a target integral value is calculated again, and then judgment is carried out.

In addition, the calibration integral value is not set before the vehicle leaves the factory, but is measured after the vehicle leaves the factory and in the normal state of the engine flexible disc, namely, the integral value of the target rotational speed difference value when the vehicle leaves the factory at the first preset distance for starting running at first.

As shown in fig. 5, the engine ECU first obtains the engine crankshaft rotational speed and the turbine rotational speed, then calculates the difference between the engine crankshaft rotational speed and the turbine rotational speed as a target rotational speed difference, starts the integration calculation when the target rotational speed difference is greater than zero, obtains a target integrated value, compares the magnitudes of the target integrated value and a calibration integrated value, and determines whether the flexible disk of the engine is damaged according to the magnitudes of the target integrated value and the calibration integrated value. The calibration integral value is measured and stored after the vehicle leaves the factory and under the normal state of the engine flexible disc.

Wherein, the method further comprises the following steps:

step S401, obtaining a first power integral value, wherein the first power integral value is an integral value of power of an engine when a target vehicle runs a second preset distance and a flexible disk of the engine is not damaged, and the engine is installed in the target vehicle;

step S402, obtaining a second power integral value, wherein the second power integral value is an integral value of the power of the engine when the target vehicle runs the second preset distance, and the time for obtaining the first power integral value is earlier than the time for obtaining the second power integral value;

The specific implementation steps for acquiring the second power integral value are as follows:

step S4021, obtaining a rotating speed difference value average value, wherein the rotating speed difference value average value is the average value of the target rotating speed difference value in the second preset distance of the target vehicle;

step S4022, obtaining a torque average value, wherein the torque average value is an average value of the torque of the engine in the time of the target vehicle traveling for a second preset distance;

step S4023, determining a product of the rotational speed difference average value and the torque average value as an engine power value;

step S4024, integrating the engine power value to obtain the second power integrated value.

Specifically, this makes it possible to calculate an accurate second power integration value, improving the accuracy of subsequent calculations. The product of the rotation speed difference average value and the torque average value is the power of the engine when the vehicle runs within a second preset distance, and the engine does work by integrating the power, so that the engine does work on the engine flexible disc when the vehicle runs within the second preset distance can be obtained. The second preset distance may be set to 6km.

In addition, the values of the first preset distance and the second preset distance can be set and adjusted differently according to actual conditions.

Step S403, determining a remaining life of a flexible disk of the engine at a current time, based on at least the first power integration value and the second power integration value, where the current time is a time when the second power integration value is acquired.

Specifically, the remaining service life of the engine flexible disc can be accurately determined, the user is reminded of paying attention to driving habits according to the remaining service life of the engine flexible disc, and the user can be informed of the remaining service life of the engine flexible disc in advance, so that the user can timely maintain and process the engine flexible disc under the condition that the remaining service life of the engine flexible disc is lower, driving safety can be guaranteed, and driving experience of the user is improved.

As shown in fig. 6, the target rotational speed difference value and torque are first obtained in real time, then the rotational speed difference value average value and torque average value are calculated, and then the remaining life of the flexible disk of the engine is determined according to the integral of the product of the rotational speed difference value average value and the torque average value.

Wherein, the specific implementation steps of determining the remaining life of the flexible disk of the engine at the current moment are as follows, according to at least the first power integral value and the second power integral value:

Step S4031, obtaining a target mileage difference, wherein the target mileage difference is the total mileage of the target vehicle in a target time period, the initial time of the target time period is the time of obtaining the first power integral value, and the end time of the target time period is the time of obtaining the second power integral value;

step S4032, obtaining a power integration difference value, where the power integration difference value is a difference value between the first power integration and the second power integration;

step S4033, determining a target coefficient according to the target mileage difference value and the power integration difference value, wherein the target coefficient is the ratio of the target mileage difference value to the power integration difference value;

step S4034, acquiring a power integration threshold value, wherein the power integration threshold value is the maximum power integration value of the normal operation of a flexible plate of the engine;

step S4035, determining a target integral difference value according to the power integral threshold and the second power integral value, where the target integral difference value is an absolute value of a difference value between the power integral threshold and the second power integral value;

step S4036, determining the remaining mileage of the vehicle according to the target integral difference value and the target coefficient, wherein the remaining mileage of the vehicle is the product of the target integral difference value and the target coefficient, and the remaining mileage of the vehicle represents the remaining life of the flexible board of the engine at the current moment.

Specifically, through the steps, the residual service life of the engine flexible disc can be accurately predicted, the residual service life of the engine flexible disc is represented by the mileage of the vehicle, and the vehicle can be more intuitively reflected to a user, so that the user can timely maintain and process the engine flexible disc under the condition that the residual service life of the engine flexible disc is lower, the driving safety can be ensured, and the driving experience of the user is improved.

Wherein after determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, the method further comprises: and sending prompt information, wherein the prompt information comprises first processing information and second processing information, the first processing information is information for prompting a user to reduce the acceleration frequency of the engine and/or information for prompting the user to reduce the deceleration frequency of the engine, and the second processing information is information for prompting the user to reduce the acceleration of the engine and/or information for prompting the user to reduce the acceleration of the engine during deceleration.

Specifically, the method can prompt the user in time under the condition that the damage of the engine flexible disc is determined, so that the user has enough time to carry out maintenance treatment, and can also adjust driving habits in time (namely, information for reducing the acceleration frequency of the engine and/or information for prompting the user to reduce the deceleration frequency of the engine, information for reducing the acceleration of the engine and/or information for prompting the user to reduce the acceleration of the engine during deceleration) to slow down the damage speed of the engine flexible disc and prolong the service life of the engine flexible disc.

The method for determining the damage of the engine flexible disk comprises the steps of firstly obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of the engine and the rotating speed of a turbine of the engine; then acquiring the rotating speed acceleration of the crankshaft, wherein the rotating speed acceleration of the crankshaft is the acceleration of the crankshaft of the engine; and finally, determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the method, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.

The embodiment of the application also provides a device for determining the flexible disk damage of the engine, and the device for determining the flexible disk damage of the engine can be used for executing the method for determining the flexible disk damage of the engine. The device is used for realizing the above embodiments and preferred embodiments, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

The following describes a device for determining damage to an engine flexible disk provided in an embodiment of the present application.

Fig. 7 is a schematic diagram of an apparatus for determining damage to an engine flexible disk according to an embodiment of the present application. As shown in fig. 7, the apparatus includes a first acquisition unit 10, a second acquisition unit 20, and a determination unit 30, the first acquisition unit 10 being configured to acquire a target rotational speed difference value, which is a difference value between a crankshaft rotational speed of an engine and a turbine rotational speed of the engine; the second acquisition unit 20 is configured to acquire a rotational speed acceleration of a crankshaft, the rotational speed acceleration being a rotational speed acceleration of a crankshaft of the engine; the determining unit 30 is configured to determine whether a flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration.

The device for determining the damage of the engine flexible disc comprises a first acquisition unit, a second acquisition unit and a determination unit, wherein the first acquisition unit is used for acquiring a target rotating speed difference value, and the target rotating speed difference value is a difference value between the rotating speed of a crankshaft of the engine and the rotating speed of a turbine of the engine; the second acquisition unit is used for acquiring the rotating speed acceleration of the crankshaft, wherein the rotating speed acceleration of the crankshaft is the acceleration of the crankshaft of the engine; the third acquisition unit is used for determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the device, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

In some optional examples, the determining unit includes a first acquiring module, a second acquiring module, and a first determining module, where the first acquiring module is configured to acquire a first calibration value, where the first calibration value is a preset value of the target rotational speed difference value under a condition that a flexible disc of the engine is not damaged; the second acquisition module is used for acquiring a second calibration value, wherein the second calibration value is a preset value of the rotating speed and the acceleration of the crankshaft under the condition that a flexible disc of the engine is not damaged; the first determining module is used for determining that the flexible disk of the engine is damaged when the target rotating speed difference value is greater than or equal to the first calibration value and/or the crankshaft rotating speed acceleration is greater than or equal to the second calibration value. The state of the flexible disk of the engine can be rapidly determined in a short time (namely no damage exists), the judging efficiency is improved, the ECU calculation force is saved, the efficiency is high, the energy is saved, and meanwhile, the state of the flexible disk of the engine can be accurately judged (namely no damage exists). The scheme of determining whether the flexible disc of the engine is damaged according to the two parameters can avoid misjudgment, namely, the problem that in some cases, the state of the flexible disc of the engine (namely, the flexible disc is damaged by mistake) is misjudged due to the fact that one parameter is deviated is avoided, namely, the accuracy is higher.

The determining unit includes a third acquiring module, a fourth acquiring module, a second determining module, and a third determining module, where the third acquiring module is configured to acquire a target integral value, the target integral value being an actual integral value of a difference value of the target rotational speeds of the target vehicle, the engine being installed in the target vehicle; the fourth obtaining module is configured to obtain a calibration integral value, where the calibration integral value is a calibration integral value of the target rotational speed difference value when the target vehicle travels the first preset distance and the flexible disc of the engine is not damaged; the second determining module is used for determining the damage of the flexible disc of the engine under the condition that the actual integral value is larger than the calibration integral value; the third determining module is used for determining that the flexible disk of the engine is not damaged under the condition that the actual integral value is smaller than or equal to the calibration integral value. Therefore, the accurate determination of the judgment can be improved, the problem that misjudgment can occur when the determination is performed only according to the transient parameters is avoided, and the problem that errors occur in the judgment of the state (with no damage) of the flexible disk of the engine due to errors in the measurement of the transient data in some cases is avoided.

In some optional examples, the apparatus further includes a fifth acquiring module, a sixth acquiring module, and a fourth determining module, where the fifth acquiring module is configured to acquire a first power integral value, where the first power integral value is an integral value of power of an engine installed in the target vehicle when the target vehicle travels a second preset distance and a flexible disk of the engine is not damaged; the sixth acquisition module is configured to acquire a second power integral value, where the second power integral value is an integral value of power of the engine when the target vehicle travels the second preset distance, and the time for acquiring the first power integral value is earlier than the time for acquiring the second power integral value; and the fourth determining module is used for determining the residual life of the flexible disc of the engine at the current moment according to at least the first power integral value and the second power integral value, wherein the current moment is the moment of acquiring the second power integral value. The method and the device can accurately determine the residual life of the engine flexible disc, remind the user of paying attention to driving habits according to the residual life of the engine flexible disc, and inform the user of the residual life of the engine flexible disc in advance, so that the user can timely maintain and process the engine flexible disc under the condition that the residual life of the engine flexible disc is lower, the driving safety can be ensured, and the driving experience of the user is improved.

In this embodiment, the fourth determining module includes a first acquiring sub-module, a second acquiring sub-module, a first determining sub-module, a third acquiring sub-module, a second determining sub-module, and a third determining sub-module, where the first acquiring sub-module is configured to acquire a target mileage difference, the target mileage difference is a total mileage of the target vehicle traveling in a target time period, an initial time of the target time period is a time of acquiring the first power integral value, and an end time of the target time period is a time of acquiring the second power integral value; the second obtaining sub-module is used for obtaining a power integration difference value, wherein the power integration difference value is the difference value between the first power integration and the second power integration; the first determining submodule is used for determining a target coefficient according to the target mileage difference value and the power integration difference value, wherein the target coefficient is the ratio of the target mileage difference value to the power integration difference value; the third acquisition sub-module is used for acquiring a power integration threshold value, wherein the power integration threshold value is the maximum power integration value of the normal operation of the flexible plate of the engine; the second determining submodule is used for determining a target integral difference value according to the power integral threshold value and the second power integral value, wherein the target integral difference value is the absolute value of the difference value between the power integral threshold value and the second power integral value; and the third determination submodule is used for determining the vehicle residual mileage according to the target integral difference value and the target coefficient, wherein the vehicle residual mileage is the product of the target integral difference value and the target coefficient, and the vehicle residual mileage represents the residual life of the flexible board of the engine at the current moment. The method has the advantages that the residual service life of the engine flexible disc can be accurately predicted, the residual service life of the engine flexible disc is represented by the mileage of the vehicle, and the method can be more intuitively reflected to a user, so that the user can timely maintain and process the engine flexible disc under the condition of lower residual service life, the driving safety can be ensured, and the driving experience of the user is improved.

The sixth acquisition module comprises a fourth acquisition sub-module, a fifth acquisition sub-module, a fourth determination sub-module and an integration sub-module, wherein the fourth acquisition sub-module is used for acquiring a rotating speed difference value average value, and the rotating speed difference value average value is an average value of the target rotating speed difference value in the time of the target vehicle driving a second preset distance; a fifth obtaining sub-module is configured to obtain a torque average value, where the torque average value is an average value of the torque of the engine during a time when the target vehicle travels a second preset distance; a fourth determination submodule is used for determining the product of the rotating speed difference average value and the torque average value as an engine power value; the integration sub-module is used for integrating the engine power value to obtain the second power integration value. Thus, an accurate second power integral value can be calculated, and the accuracy of subsequent calculation is improved.

As an alternative, the device further includes a presentation unit configured to, after determining whether the flexible disk of the engine is damaged according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, issue a presentation message including first processing information and second processing information, where the first processing information is information for presenting a user to reduce an acceleration frequency of the engine and/or information for presenting the user to reduce a deceleration frequency of the engine, and the second processing information is information for presenting the user to reduce an acceleration of the engine and/or information for presenting the user to reduce an acceleration of the engine during deceleration.

The device for determining the damage of the flexible disk of the engine comprises a processor and a memory, wherein the first acquisition unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions. The modules are all located in the same processor; alternatively, the above modules may be located in different processors in any combination.

The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The inner core can be provided with one or more than one, and the problem that whether the flexible disk of the engine is damaged or not can not be accurately determined in the prior art is solved by adjusting the parameters of the inner core.

The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.

The embodiment of the invention provides a computer readable storage medium, which comprises a stored program, wherein the program is controlled to control equipment where the computer readable storage medium is located to execute the method for determining the flexible disc damage of the engine.

Specifically, the method for determining the damage of the flexible disk of the engine comprises the following steps:

The embodiment of the invention provides a processor which is used for running a program, wherein the method for determining the damage of the flexible disk of the engine is executed when the program runs.

The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:

The device herein may be a server, PC, PAD, cell phone, etc.

The present application also provides a computer program product adapted to perform a program initialized with at least the following method steps when executed on a data processing device:

It will be appreciated by those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

1) Firstly, obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of an engine and the rotating speed of a turbine of the engine; then acquiring the rotating speed acceleration of the crankshaft, wherein the rotating speed acceleration of the crankshaft is the acceleration of the crankshaft of the engine; and finally, determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the method, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

2) The device for determining the damage of the engine flexible disc comprises a first acquisition unit, a second acquisition unit and a determination unit, wherein the first acquisition unit is used for acquiring a target rotating speed difference value, and the target rotating speed difference value is a difference value between the rotating speed of a crankshaft of the engine and the rotating speed of a turbine of the engine; the second acquisition unit is used for acquiring the rotating speed acceleration of the crankshaft, wherein the rotating speed acceleration of the crankshaft is the acceleration of the crankshaft of the engine; the third acquisition unit is used for determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration. According to the device, whether the flexible disk of the engine is damaged or not can be accurately determined according to the difference value between the rotating speed of the crankshaft of the engine and the rotating speed of the turbine of the engine and/or the rotating speed acceleration of the crankshaft, the running safety of a vehicle is improved, and the problem that whether the flexible disk of the engine is damaged or not cannot be accurately determined in the prior art is solved.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for determining damage to an engine flexible disk, comprising:

obtaining a target rotating speed difference value, wherein the target rotating speed difference value is the difference value between the rotating speed of a crankshaft of an engine and the rotating speed of a turbine of the engine;

acquiring crankshaft rotational speed acceleration, wherein the crankshaft rotational speed acceleration is rotational speed acceleration of a crankshaft of the engine;

and determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration.

2. The determination method according to claim 1, wherein determining whether the flexible disk of the engine is damaged or not according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, comprises:

acquiring a first calibration value, wherein the first calibration value is a preset value of the target rotating speed difference value under the condition that a flexible disc of the engine is not damaged;

obtaining a second calibration value, wherein the second calibration value is a preset value of the rotational speed and the acceleration of the crankshaft under the condition that a flexible disc of the engine is not damaged;

and determining that the flexible disc of the engine is damaged when the target rotational speed difference is greater than or equal to the first calibration value and/or the crankshaft rotational speed acceleration is greater than or equal to the second calibration value.

3. The determination method according to claim 1, wherein determining whether the flexible disk of the engine is damaged or not according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, comprises:

acquiring a target integral value, wherein the target integral value is an actual integral value of a difference value of a target rotational speed of a target vehicle, and the engine is installed in the target vehicle;

obtaining a calibration integral value, wherein the calibration integral value is the calibration integral value of the target rotating speed difference value under the condition that the target vehicle runs for the first preset distance and the flexible disc of the engine is not damaged;

determining a flex disc damage of the engine in the case where the actual integrated value is greater than the calibrated integrated value;

and determining that the flexible disk of the engine is not damaged under the condition that the actual integrated value is smaller than or equal to the calibrated integrated value.

4. The method of determining according to claim 1, wherein the method further comprises:

acquiring a first power integral value, wherein the first power integral value is an integral value of power of an engine under the condition that a target vehicle runs for a second preset distance and a flexible disc of the engine is not damaged, and the engine is installed in the target vehicle;

Acquiring a second power integral value, wherein the second power integral value is an integral value of the power of the engine when the target vehicle runs by the second preset distance, and the time for acquiring the first power integral value is earlier than the time for acquiring the second power integral value;

and determining the residual life of the flexible disc of the engine at the current moment according to at least the first power integral value and the second power integral value, wherein the current moment is the moment of acquiring the second power integral value.

5. The determination method according to claim 4, characterized in that determining the remaining life of the flexible disk of the engine at the current time based on at least the first power integrated value and the second power integrated value includes:

obtaining a target mileage difference value, wherein the target mileage difference value is the total mileage of the target vehicle in a target time period, the initial time of the target time period is the time of obtaining the first power integral value, and the end time of the target time period is the time of obtaining the second power integral value;

acquiring a power integration difference value, wherein the power integration difference value is the difference value between the first power integration and the second power integration;

Determining a target coefficient according to the target mileage difference value and the power integration difference value, wherein the target coefficient is the ratio of the target mileage difference value to the power integration difference value;

acquiring a power integration threshold value, wherein the power integration threshold value is the maximum power integration value of the normal work of a flexible plate of the engine;

determining a target integral difference value according to the power integral threshold and the second power integral value, wherein the target integral difference value is an absolute value of a difference value between the power integral threshold and the second power integral value;

and determining the remaining mileage of the vehicle according to the target integral difference value and the target coefficient, wherein the remaining mileage of the vehicle is the product of the target integral difference value and the target coefficient, and the remaining mileage of the vehicle represents the remaining life of the flexible board of the engine at the current moment.

6. The determination method according to claim 4, wherein acquiring the second power integration value includes:

acquiring a rotating speed difference average value, wherein the rotating speed difference average value is the average value of the target rotating speed difference value in the time of the second preset distance of the target vehicle;

acquiring a torque average value, wherein the torque average value is the average value of the torque of the engine in the time of the target vehicle running for a second preset distance;

Determining a product of the rotational speed difference average and the torque average as an engine power value;

and integrating the engine power value to obtain the second power integrated value.

7. The determination method according to claim 1, wherein after determining whether the flexible disk of the engine is damaged or not according to the magnitude of the target rotational speed difference and/or the magnitude of the crankshaft rotational speed acceleration, the method further comprises:

the method comprises the steps of sending prompt information, wherein the prompt information comprises first processing information and second processing information, the first processing information is information for prompting a user to reduce the acceleration frequency of the engine and/or information for prompting the user to reduce the deceleration frequency of the engine, and the second processing information is information for prompting the user to reduce the acceleration of the engine during acceleration and/or information for prompting the user to reduce the acceleration of the engine during deceleration.

8. An apparatus for determining damage to an engine flexible disk, comprising:

a first acquisition unit configured to acquire a target rotational speed difference value, the target rotational speed difference value being a difference value between a crankshaft rotational speed of an engine and a turbine rotational speed of the engine;

A second acquisition unit configured to acquire a rotational speed acceleration of a crankshaft, the rotational speed acceleration of the crankshaft being a rotational speed acceleration of a crankshaft of the engine;

and the determining unit is used for determining whether the flexible disc of the engine is damaged according to the magnitude of the target rotating speed difference value and/or the magnitude of the crankshaft rotating speed acceleration.

9. 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 method of determining a flexible disc damage of an engine according to any one of claims 1 to 7.

10. An engine, comprising: one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising a method for performing the determination of engine flexible disc damage of any of claims 1-7.