CN114934962B

CN114934962B - Method and device for determining risk of clutch damage and vehicle

Info

Publication number: CN114934962B
Application number: CN202210428313.1A
Authority: CN
Inventors: 孙晓鹏; 王国栋
Original assignee: Weichai Power Co Ltd; Weifang Weichai Power Technology Co Ltd
Current assignee: Weichai Power Co Ltd; Weifang Weichai Power Technology Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2024-04-16
Anticipated expiration: 2042-04-22
Also published as: CN114934962A

Abstract

The application provides a method and a device for determining risk of clutch damage and a vehicle, wherein the method comprises the following steps: acquiring a plurality of parameter sets of continuous time nodes in the clutch combining process, wherein the parameter sets comprise the rotating speed of an engine and the output torque of the engine; calculating the net output power of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target powers, wherein the target time interval is the time interval of any two adjacent time nodes, and corresponds to the parameter set of the previous time node in the any two adjacent time nodes; calculating the sum of a plurality of target works to obtain a target total work; and determining whether the clutch is damaged according to the target total work. The method solves the problem that the friction work of the clutch friction plate cannot be accurately calculated in the prior art.

Description

Method and device for determining risk of clutch damage and vehicle

Technical Field

The application relates to the technical field of engines, in particular to a method and a device for determining risk of damage to a clutch, a computer readable storage medium, a processor and a vehicle.

Background

Large intelligent tractors support a variety of operating conditions, with PTO operation being one of the most typical of them, and therefore are particularly important for PTO control. At present, most tractors use a multi-disc wet clutch to control whether a PTO function is activated or not. When the PTO is matched with a heavy-load agricultural machine (such as an all-in-one agricultural machine, a bundling machine and the like) to work, the PTO clutch is required to bear great energy transmission in the combining process, so that the friction work when the PTO clutch is combined is required to be detected in real time and accurately in order to avoid the abrasion of the clutch caused by the misoperation of a driver, namely the load combined PTO clutch, and the PTO clutch is actively controlled to be disconnected when the friction work of the PTO clutch is overlarge, thereby achieving the effect of protecting the PTO clutch.

In the existing PTO clutch protection control strategy, the detection of friction work is mostly based on the actual pressure detected by a pressure sensor or the set pressure in the control strategy, the current clutch transmission torque is calculated through the pressure, the friction work is calculated and detected by utilizing the torque and the clutch speed difference, and when the friction work is calculated based on the actual pressure detected by the pressure sensor or the set pressure in the control strategy, the cost is increased due to the fact that the pressure sensor is required to be installed, and the accuracy of friction work calculation is greatly affected due to the fact that the hysteresis of the actual pressure control and the accuracy of the pressure control are different.

Disclosure of Invention

The application mainly aims to provide a method for determining the damage risk of a clutch, a determining device, a computer readable storage medium, a processor and a vehicle, so as to solve the problem that the friction work of a friction plate of the clutch cannot be accurately calculated in the prior art.

According to an aspect of an embodiment of the present invention, there is provided a method of determining a risk of damage to a clutch, an engine including a clutch, including: acquiring a parameter set of a plurality of continuous time nodes during the clutch is in a combination process, wherein the parameter set comprises the rotating speed of the engine and the output torque of the engine; calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and corresponds to the parameter set of the previous time node in the any two adjacent time nodes; calculating the sum of a plurality of target works to obtain a target total work; determining whether the clutch is at risk of damage based on the target total work.

Optionally, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, including: a first calculation step of calculating a difference between a torque load rate of the engine and a preparation parameter to obtain a target difference, wherein the torque load rate of the engine is a ratio of an output torque of the engine to a maximum torque of the engine, the preparation parameter is a sum of an external part consumption percentage of the engine and a friction torque percentage of the engine, the external part consumption percentage of the engine is a ratio of the external part consumption torque of the engine to a reference torque, the friction torque percentage of the engine is a ratio of an internal consumption torque of the engine to the reference torque, and the reference torque is a maximum torque allowable when the engine is normally operated; a second calculation step of calculating a product of the target difference and a preliminary work, to obtain the target work, wherein the preliminary work is a product of a preliminary power and the target time interval, and the preliminary power is a product of a maximum torque of the engine and a rotational speed of the engine; and sequentially repeating the first calculation step and the second calculation step at least once to obtain a plurality of target works.

Optionally, calculating a sum of the target works to obtain a target total work, including: an accumulation step of calculating the sum of the target work of the current target time interval and the target total work corresponding to the last target time interval to obtain the target total work corresponding to the current target time interval; judging whether the target total work corresponding to the current target time interval is larger than a preset threshold value or not; and sequentially repeating the accumulating step and the judging step at least once until the target total work is larger than the preset threshold value.

Optionally, determining whether there is a risk of damage to the clutch according to the target total work includes: and determining that the clutch is at risk of damage when the target total work is greater than the predetermined threshold.

Optionally, the clutch includes a plurality of friction plates, and after determining whether there is a risk of damage to the clutch based on the target total work, the method further includes: and under the condition that the risk of damage to the clutch is determined, pushing a message notice for controlling the operation state of the clutch to be switched to a release operation state, wherein the release operation state is the operation state of the clutch with any two adjacent friction plates kept at a certain distance.

Optionally, after pushing a message notification that controls the operation state of the clutch to switch to the off-operation state, the method further includes: and clearing the target total power.

According to another aspect of the embodiment of the present invention, there is also provided a device for determining risk of damage to a clutch, an engine including a clutch, including: an acquisition unit configured to acquire a parameter set including a rotational speed of the engine and an output torque of the engine for a plurality of continuous time nodes while the clutch is in a coupling process; the first calculation unit is used for calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and corresponds to the parameter set of the previous time node in the any two adjacent time nodes; the second calculation unit is used for calculating the sum of a plurality of target works to obtain a target total work; and the determining unit is used for determining whether the clutch is at risk of damage according to the target total work.

According to still another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium including a stored program, wherein the program performs any one of the methods.

According to yet another aspect of the embodiments of the present invention, there is further provided a processor, where the processor is configured to execute a program, where the program executes any one of the methods.

According to an aspect of an embodiment of the present invention, there is also provided a vehicle including: an engine, one or more processors, a memory, and one or more programs, wherein the engine comprises a clutch comprising a plurality of friction plates, the one or more programs being stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing any of the methods.

In the method for determining the risk of damage to the clutch according to the embodiment of the present invention, first, a plurality of parameter sets of continuous time nodes are obtained during a process of coupling the clutch, wherein the parameter sets include a rotational speed of the engine and an output torque of the engine; then, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and the target time interval corresponds to the parameter set of the previous time node in the any two adjacent time nodes; then, calculating the sum of a plurality of target works to obtain a target total work; finally, determining whether the clutch is at risk of damage according to the target total work. According to the method, firstly, the net output work of an engine at each target time interval is calculated to obtain each target work, and because the clutch and the engine are in a direct-connected structure, each obtained target work is the work actually transmitted by the clutch at each target time interval, namely the friction work generated by the clutch friction plate at each target time interval, then, the friction work generated by the clutch friction plate is obtained by calculating the sum of each target work to obtain the target total work, finally, when the target total work is larger than a preset threshold value, the risk of damage of the clutch is determined, the friction plates are separated from each other in time, and the damage of the clutch is prevented.

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 specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 illustrates a flow chart of a method of determining a risk of clutch damage according to one embodiment of the application;

FIG. 2 illustrates a flow chart of a method of determining a risk of clutch damage according to another specific embodiment of the application;

fig. 3 shows a schematic diagram of a device for determining the risk of damage to a clutch according to an embodiment of the application.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application 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 application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application 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 the 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 application 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.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Furthermore, in the description and in the claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.

For convenience of description, the following will describe some terms or terminology involved in the embodiments of the present application:

PTO clutch: the power output device is a device that outputs power of an engine to a device other than a vehicle running system.

As described in the background art, in order to solve the above-mentioned problems, in an exemplary embodiment of the present application, a method for determining a risk of damage to a clutch, a determining device, a computer-readable storage medium, a processor, and a vehicle are provided.

According to an embodiment of the present application, a method of determining a risk of clutch damage is provided.

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

step S101, obtaining parameter sets of a plurality of continuous time nodes, wherein the parameter sets comprise the rotating speed of the engine and the output torque of the engine;

Step S102, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and the target time interval corresponds to the parameter set of the previous time node in the any two adjacent time nodes;

step S103, calculating the sum of a plurality of target works to obtain a target total work;

step S104, determining whether the clutch is damaged according to the target total work.

In the method for determining the risk of damage to the clutch, firstly, a plurality of parameter sets of continuous time nodes are obtained in the process that the clutch is in a combination process, wherein the parameter sets comprise the rotating speed of the engine and the output torque of the engine; then, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and the target time interval corresponds to the parameter set of the previous time node in the any two adjacent time nodes; then, calculating the sum of a plurality of target works to obtain a target total work; finally, determining whether the clutch is at risk of damage according to the target total work. According to the method, firstly, the net output work of an engine at each target time interval is calculated to obtain each target work, and because the clutch and the engine are in a direct-connected structure, each obtained target work is the work actually transmitted by the clutch at each target time interval, namely the friction work generated by the clutch friction plate at each target time interval, then, the friction work generated by the clutch friction plate is obtained by calculating the sum of each target work to obtain the target total work, finally, when the target total work is larger than a preset threshold value, the risk of damage of the clutch is determined, the friction plates are separated from each other in time, and the damage of the clutch is prevented.

The clutch is the PTO clutch.

It should be noted that the application does not need a PTO clutch pressure sensor, so that the cost can be saved, and meanwhile, the application does not need other additional hardware, so that the application has strong practicability, and the friction work of the friction plate of the PTO clutch is calculated more accurately based on the actual transmitted work of the PTO clutch.

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.

In one embodiment of the present application, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works includes: a first calculation step of calculating a difference between a torque load factor of the engine, which is a ratio of an output torque of the engine to a maximum torque of the engine, and a preliminary parameter, which is a sum of a percentage of consumption of an external part of the engine and a percentage of consumption of friction of the engine, which is a ratio of the percentage of consumption of the external part of the engine to a reference torque, which is a ratio of the internal consumption torque of the engine to the reference torque, to obtain a target difference, which is a ratio of the internal consumption torque of the engine to the maximum torque allowable when the engine is operating normally; a second calculation step of calculating a product of the target difference and a preliminary work, which is a product of a preliminary power, which is a product of a maximum torque of the engine and a rotational speed of the engine, and the target time interval, to obtain the target work; and repeating the first calculation step and the second calculation step at least once in sequence to obtain a plurality of target works. In this embodiment, the net output work of the engine at each target time interval obtained by sequentially repeating the first calculation step and the second calculation step is the net output work of the engine at each target time interval, and since the engine and the PTO clutch are in a direct connection structure, the net output work of the engine at each target time interval is the work actually transmitted by the PTO clutch at each target time interval, that is, the work generated by the PTO clutch friction plate at each target time interval, thereby realizing detection of the work generated by the PTO clutch friction plate at each fixed time interval.

In one embodiment of the present application, calculating a sum of the target works to obtain a target total work includes: an accumulation step of calculating a sum of the target work of the current target time interval and the target total work corresponding to the previous target time interval to obtain the target total work corresponding to the current target time interval; judging whether the target total work corresponding to the current target time interval is larger than a preset threshold value or not; and repeating the accumulating step and the judging step at least once in sequence until the target total work is larger than the preset threshold value. In this embodiment, the summation step is used to obtain the target total work corresponding to each target time interval, that is, the sum of the work produced by the PTO clutch friction plate of each fixed time period and all the fixed time periods before each fixed time period is obtained, that is, the work produced by the PTO clutch friction plate corresponding to each fixed time period is obtained, and the judgment step is used to determine whether the work produced by the PTO clutch friction plate corresponding to each fixed time period is greater than a predetermined threshold, where the predetermined threshold is a preset value of the work produced by the PTO clutch friction plate capable of determining that the PTO clutch is at risk of damage.

In one embodiment of the present application, determining whether there is a risk of damage to the clutch according to the target total work includes: and determining that the clutch is at risk of damage when the target total work is greater than the predetermined threshold. In this embodiment, as shown in fig. 2, the risk of PTO clutch damage is determined when the target total work is greater than the upper predetermined threshold, i.e., the work produced by the PTO clutch disk is greater than a preset value of the work produced by the PTO clutch disk that can determine the risk of PTO clutch damage.

In one embodiment of the present application, the clutch includes a plurality of friction plates, and after determining whether there is a risk of damage to the clutch according to the target total work, the method further includes: and when it is determined that the clutch is at risk of damage, pushing a message for controlling the operation state of the clutch to be switched to a release operation state, wherein the release operation state is the operation state of the clutch in which any two adjacent friction plates are kept at a certain distance. In this embodiment, when it is determined that there is a risk of damage to the PTO clutch, a message notification for controlling the operation state of the PTO clutch to switch to the disengaged operation state is pushed, and the friction plates of the PTO clutch are separated from each other in time, thereby preventing the PTO clutch from being damaged.

In one embodiment of the present application, after pushing a message notification that controls the operation state of the clutch to switch to the disengaged operation state, the method further includes: and clearing the target total power. In this embodiment, after a message notification for controlling the operation state of the PTO clutch to switch to the disengaged operation state is sent, the target total work, that is, the work generated by the friction plate of the PTO clutch is cleared, and it is detected whether there is a risk of damage to the PTO clutch in the next engagement process.

The embodiment of the application also provides a device for determining the risk of damage to the clutch, and the device for determining the risk of damage to the clutch can be used for executing the method for determining the risk of damage to the clutch provided by the embodiment of the application. The following describes a device for determining the risk of damage to a clutch according to an embodiment of the present application.

Fig. 3 is a schematic view of a device for determining a risk of clutch damage according to an embodiment of the application. As shown in fig. 3, the apparatus includes:

An acquisition unit 10 that acquires parameter sets of a plurality of continuous-time nodes, the parameter sets including a rotational speed of the engine and an output torque of the engine;

A first calculation unit 20 that calculates a net output work of the engine for each target time interval, based on the parameter set of each of the time nodes, to obtain a plurality of target works, the target time interval being a time interval between any adjacent two of the time nodes, the target time interval corresponding to a parameter set of a preceding one of the two adjacent time nodes;

A second calculation unit 30 for calculating a sum of the plurality of target works to obtain a target total work;

And a determining unit 40 for determining whether the clutch is at risk of damage according to the target total work.

In the clutch damage risk determining device, an acquiring unit acquires a plurality of parameter sets of continuous time nodes during a clutch engagement process, wherein the parameter sets include a rotational speed of the engine and an output torque of the engine; a first calculation unit configured to calculate a net output work of the engine at each target time interval according to a parameter set of each time node, and obtain a plurality of target works, where the target time interval is a time interval between any two adjacent time nodes, and the target time interval corresponds to a parameter set of a preceding one of the two adjacent time nodes; a second calculation unit for calculating the sum of the target works to obtain a target total work; and a determining unit for determining whether the clutch is damaged according to the target total work. According to the device, firstly, the net output work of an engine at each target time interval is calculated to obtain each target work, and because the clutch and the engine are in a direct-connection structure, each obtained target work is the work actually transmitted by the clutch at each target time interval, namely the friction work generated by the clutch friction plate at each target time interval, then, the friction work generated by the clutch friction plate is obtained by calculating the sum of each target work to obtain the target total work, finally, when the target total work is larger than a preset threshold value, the risk of damage of the clutch is determined, the friction plates are separated from each other in time, and the damage of the clutch is prevented.

The clutch is the PTO clutch.

In one embodiment of the present application, the first calculation unit includes a first calculation module, a second calculation module, and a first iteration module, where the first calculation module is configured to calculate a difference between a torque load rate of the engine and a preparation parameter, to obtain a target difference, where the torque load rate of the engine is a ratio of an output torque of the engine to a maximum torque of the engine, the preparation parameter is a sum of a percentage of consumption of an external part of the engine and a percentage of friction torque of the engine, the percentage of consumption of the external part of the engine is a ratio of a percentage of consumption of the external part of the engine to a reference torque, and the percentage of friction torque of the engine is a ratio of an internal consumption torque of the engine to the reference torque, and the reference torque is a maximum torque allowable when the engine is operating normally; the second calculation module is configured to calculate a product of the target difference and a preliminary work to obtain the target work, where the preliminary work is a product of a preliminary power and the target time interval, and the preliminary power is a product of a maximum torque of the engine and a rotational speed of the engine; the first iteration module is used for sequentially repeating the first calculation step and the second calculation step at least once to obtain a plurality of target works. In this embodiment, the net output work of the engine at each target time interval obtained by sequentially repeating the first calculation step and the second calculation step is the net output work of the engine at each target time interval, and since the engine and the PTO clutch are in a direct connection structure, the net output work of the engine at each target time interval is the work actually transmitted by the PTO clutch at each target time interval, that is, the work generated by the PTO clutch friction plate at each target time interval, thereby realizing detection of the work generated by the PTO clutch friction plate at each fixed time interval.

In one embodiment of the present application, the second calculating unit includes an accumulating module, a judging module, and a second iteration module, where the accumulating module is configured to calculate a sum of the target work of the current target time interval and the target total work corresponding to the previous target time interval to obtain the target total work corresponding to the current target time interval; the judging module is used for judging whether the target total work corresponding to the current target time interval is larger than a preset threshold value or not; the second iteration module is configured to sequentially repeat the accumulating step and the determining step at least once until the target total power is greater than the predetermined threshold. In this embodiment, the summation step is used to obtain the target total work corresponding to each target time interval, that is, the sum of the work produced by the PTO clutch friction plate of each fixed time period and all the fixed time periods before each fixed time period is obtained, that is, the work produced by the PTO clutch friction plate corresponding to each fixed time period is obtained, and the judgment step is used to determine whether the work produced by the PTO clutch friction plate corresponding to each fixed time period is greater than a predetermined threshold, where the predetermined threshold is a preset value of the work produced by the PTO clutch friction plate capable of determining that the PTO clutch is at risk of damage.

In an embodiment of the application, the determining unit is configured to determine that the clutch is at risk of being damaged when the target total work is greater than the predetermined threshold. In this embodiment, as shown in fig. 2, the risk of PTO clutch damage is determined when the target total work is greater than the upper predetermined threshold, i.e., the work produced by the PTO clutch disk is greater than a preset value of the work produced by the PTO clutch disk that can determine the risk of PTO clutch damage.

In one embodiment of the present application, the device for determining risk of damage to a clutch further includes a transmitting unit configured to, when it is determined that there is a risk of damage to the clutch, push a message notification for controlling switching of an operation state of the clutch to a disengaged operation state, the disengaged operation state being an operation state of the clutch in which any adjacent two of the friction plates are maintained at a certain distance. In this embodiment, when it is determined that there is a risk of damage to the PTO clutch, a message notification for controlling the operation state of the PTO clutch to switch to the disengaged operation state is pushed, and the friction plates of the PTO clutch are separated from each other in time, thereby preventing the PTO clutch from being damaged.

In an embodiment of the application, the device for determining a risk of damage to the clutch further includes a zero clearing unit, where the zero clearing unit is configured to zero the target total work. In this embodiment, after a message notification for controlling the operation state of the PTO clutch to switch to the disengaged operation state is sent, the target total work, that is, the work generated by the friction plate of the PTO clutch is cleared, and it is detected whether there is a risk of damage to the PTO clutch in the next engagement process.

The method and the device for determining the risk of the damage of the clutch comprise a processor and a memory, wherein the acquisition unit, the first calculation unit, the second calculation unit, the determination unit and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.

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 the friction work of the clutch friction plate cannot be accurately calculated 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.

An embodiment of the present invention provides a storage medium having a program stored thereon, which when executed by a processor, implements the above-described method of determining a risk of clutch damage.

The embodiment of the invention provides a processor, which is used for running a program, wherein the program runs to execute the method for determining the risk of damage to the clutch.

An embodiment of the present invention provides a vehicle including: an engine, one or more processors, a memory, and one or more programs, wherein the engine comprises a clutch comprising a plurality of friction plates, the one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including a means for performing any of the methods, the processors when executing the programs performing at least the steps of:

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

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

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 may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units may be a logic function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be 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 above as separate components may or may not be physically separate, and components shown 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 described above, 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 above-mentioned method of the various embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a read-only memory (ROM), a random access memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

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

1) In the method for determining the risk of damage to the clutch according to the present application, firstly, a plurality of parameter sets of continuous time nodes are obtained during the coupling process of the clutch, wherein the parameter sets include the rotational speed of the engine and the output torque of the engine; then, calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and the target time interval corresponds to the parameter set of the previous time node in the any two adjacent time nodes; then, calculating the sum of a plurality of target works to obtain a target total work; finally, determining whether the clutch is at risk of damage according to the target total work. According to the method, firstly, the net output work of an engine at each target time interval is calculated to obtain each target work, and because the clutch and the engine are in a direct-connected structure, each obtained target work is the work actually transmitted by the clutch at each target time interval, namely the friction work generated by the clutch friction plate at each target time interval, then, the friction work generated by the clutch friction plate is obtained by calculating the sum of each target work to obtain the target total work, finally, when the target total work is larger than a preset threshold value, the risk of damage of the clutch is determined, the friction plates are separated from each other in time, and the damage of the clutch is prevented.

2) In the clutch damage risk determining device of the present application, the acquiring unit acquires a plurality of parameter sets of continuous time nodes during a coupling process of the clutch, wherein the parameter sets include a rotational speed of the engine and an output torque of the engine; a first calculation unit configured to calculate a net output work of the engine at each target time interval according to a parameter set of each time node, and obtain a plurality of target works, where the target time interval is a time interval between any two adjacent time nodes, and the target time interval corresponds to a parameter set of a preceding one of the two adjacent time nodes; a second calculation unit for calculating the sum of the target works to obtain a target total work; and a determining unit for determining whether the clutch is damaged according to the target total work. According to the device, firstly, the net output work of an engine at each target time interval is calculated to obtain each target work, and because the clutch and the engine are in a direct-connection structure, each obtained target work is the work actually transmitted by the clutch at each target time interval, namely the friction work generated by the clutch friction plate at each target time interval, then, the friction work generated by the clutch friction plate is obtained by calculating the sum of each target work to obtain the target total work, finally, when the target total work is larger than a preset threshold value, the risk of damage of the clutch is determined, the friction plates are separated from each other in time, and the damage of the clutch is prevented.

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

Claims

1. A method of determining a risk of clutch damage, wherein an engine includes a clutch, comprising:

Acquiring a parameter set of a plurality of continuous time nodes during the clutch is in a combination process, wherein the parameter set comprises the rotating speed of the engine and the output torque of the engine;

Calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and corresponds to the parameter set of the previous time node in the any two adjacent time nodes;

calculating the sum of a plurality of target works to obtain a target total work;

Determining whether the clutch is at risk of damage according to the target total work, calculating the net output work of the engine at each target time interval according to the parameter set of each time node, and obtaining a plurality of target works, wherein the method comprises the following steps: a first calculation step of calculating a difference between a torque load rate of the engine and a preparation parameter to obtain a target difference, wherein the torque load rate of the engine is a ratio of an output torque of the engine to a maximum torque of the engine, the preparation parameter is a sum of an external part consumption percentage of the engine and a friction torque percentage of the engine, the external part consumption percentage of the engine is a ratio of the external part consumption torque of the engine to a reference torque, the friction torque percentage of the engine is a ratio of an internal consumption torque of the engine to the reference torque, and the reference torque is a maximum torque allowable when the engine is normally operated; a second calculation step of calculating a product of the target difference and a preliminary work, to obtain the target work, wherein the preliminary work is a product of a preliminary power and the target time interval, and the preliminary power is a product of a maximum torque of the engine and a rotational speed of the engine; and sequentially repeating the first calculation step and the second calculation step at least once to obtain a plurality of target works.

2. The method of claim 1, wherein calculating the sum of the target works to obtain a target total work comprises:

An accumulation step of calculating the sum of the target work of the current target time interval and the target total work corresponding to the last target time interval to obtain the target total work corresponding to the current target time interval;

judging whether the target total work corresponding to the current target time interval is larger than a preset threshold value or not;

and sequentially repeating the accumulating step and the judging step at least once until the target total work is larger than the preset threshold value.

3. The method of claim 2, wherein determining whether the clutch is at risk of damage based on the target total work comprises:

and determining that the clutch is at risk of damage when the target total work is greater than the predetermined threshold.

4. The method of claim 1, wherein the clutch comprises a plurality of friction plates, and wherein after determining whether the clutch is at risk of damage based on the target total work, the method further comprises:

And under the condition that the risk of damage to the clutch is determined, pushing a message notice for controlling the operation state of the clutch to be switched to a release operation state, wherein the release operation state is the operation state of the clutch with any two adjacent friction plates kept at a certain distance.

5. The method of claim 4, wherein following the push message notification controlling the clutch to switch to the disengaged operating state, the method further comprises:

And clearing the target total power.

6. A device for determining risk of clutch damage, wherein an engine includes a clutch, comprising:

an acquisition unit configured to acquire a parameter set including a rotational speed of the engine and an output torque of the engine for a plurality of continuous time nodes while the clutch is in a coupling process;

The first calculation unit is used for calculating the net output work of the engine at each target time interval according to the parameter set of each time node to obtain a plurality of target works, wherein the target time interval is the time interval of any two adjacent time nodes, and corresponds to the parameter set of the previous time node in the any two adjacent time nodes;

The second calculation unit is used for calculating the sum of a plurality of target works to obtain a target total work;

The first calculation unit comprises a first calculation module, a second calculation module and a first iteration module, wherein the first calculation module is used for executing a first calculation step, calculating a difference value of a torque load rate of the engine and a preparation parameter to obtain a target difference value, the torque load rate of the engine is a ratio of output torque of the engine to maximum torque of the engine, the preparation parameter is a sum of an external part consumption percentage of the engine and a friction torque percentage of the engine, the external part consumption percentage of the engine is a ratio of external part consumption torque of the engine to a reference torque, the friction torque percentage of the engine is a ratio of internal consumption torque of the engine to the reference torque, and the reference torque is a maximum torque allowed by the engine in normal operation; the second calculation module is configured to perform a second calculation step, calculate a product of the target difference and a preliminary work, and obtain the target work, where the preliminary work is a product of a preliminary power and the target time interval, and the preliminary power is a product of a maximum torque of the engine and a rotational speed of the engine; the first iteration module is used for sequentially repeating the first calculation step and the second calculation step at least once to obtain a plurality of target works.

7. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored program, wherein the program performs the method of any one of claims 1 to 5.

8. A processor for running a program, wherein the program when run performs the method of any one of claims 1 to 5.

9. A vehicle, characterized by comprising: an engine, one or more processors, a memory, and one or more programs, wherein the engine comprises a clutch comprising a plurality of friction plates, the one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing the method of any of claims 1-5.