CN114941666B

CN114941666B - Clutch control method, device, electronic equipment and storage medium

Info

Publication number: CN114941666B
Application number: CN202210351923.6A
Authority: CN
Inventors: 徐静; 孙晓鹏; 郭帅
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: 2022-04-02
Filing date: 2022-04-02
Publication date: 2024-06-18
Anticipated expiration: 2042-04-02
Also published as: CN114941666A

Abstract

The application provides a clutch control method, a device, electronic equipment and a storage medium, which belong to the technical field of automobiles, wherein the clutch control method comprises the following steps: acquiring actual temperature parameters of a clutch friction plate; correcting the preset friction coefficient of the friction plate based on the actual temperature parameter to obtain a corrected friction coefficient; determining an actual transfer torque of the clutch based on the modified friction coefficient; the clutch is controlled based on the actual transmission torque. And determining accurate transmission torque according to the current clutch temperature, further accurately calculating the transmission torque of the clutch, and improving the control precision of the system.

Description

Clutch control method, device, electronic equipment and storage medium

Technical Field

The present application relates to the field of automotive technologies, and in particular, to a method and apparatus for controlling a clutch, an electronic device, and a storage medium.

Background

China is a large automobile country, and related technologies related to automobiles are more and more mature along with rapid progress and development of automobile industry.

The change of the clutch temperature can have great influence on the working characteristics of the clutch, when the clutch temperature is too high, the condition that the clutch cannot transmit torque can possibly occur, and when the clutch performs torque control, even if other working conditions are the same, the transmitted torque can be changed only due to the fact that the temperature is different, and further deviation occurs in control results.

Therefore, a technical problem of how to control the clutch more accurately based on the clutch temperature is to be solved.

Disclosure of Invention

The application provides a clutch control method, a clutch control device, electronic equipment and a storage medium, which at least solve the technical problem of how to control a clutch more accurately based on the clutch temperature in the related technology.

According to an aspect of an embodiment of the present application, there is provided a clutch control method including: acquiring actual temperature parameters of a clutch friction plate; correcting the preset friction coefficient of the friction plate based on the actual temperature parameter to obtain a corrected friction coefficient; determining an actual transfer torque of the clutch based on the modified friction coefficient; the clutch is controlled based on the actual transmission torque.

Optionally, the correcting the preset friction coefficient of the friction plate based on the actual temperature parameter includes: determining a first correction coefficient according to an actual temperature parameter, wherein the first correction coefficient is positively correlated with the friction coefficient correction amount and is positively correlated with the actual temperature parameter; and correcting the preset friction coefficient by the first correction coefficient to obtain a corrected friction coefficient.

Optionally, the correcting the preset friction coefficient of the friction plate based on the actual temperature parameter, to obtain a corrected friction coefficient further includes: acquiring the actual combination speed of the clutch; performing negative correlation adjustment on the first correction coefficient based on the actual combination speed to obtain a second correction coefficient; and correcting the preset friction coefficient by the second correction coefficient to obtain a corrected friction coefficient.

Optionally, the clutch control method further includes: judging whether the actual bonding speed is greater than the preset bonding speed; when the actual combination speed is larger than the preset combination speed, the preset friction coefficient is not corrected; and when the actual bonding speed is smaller than the preset bonding speed, correcting the preset friction coefficient, and entering a step of correcting the preset friction coefficient of the friction plate based on the actual temperature parameter.

Optionally, the clutch control method further includes: acquiring distance parameters between a flywheel of the clutch and the friction plate, which are acquired by a sensor; correcting the distance parameter based on the actual temperature parameter; the clutch is controlled based on the corrected distance parameter.

Optionally, the KP point is recalibrated based on the actual temperature parameter and the corrected friction coefficient.

Optionally, the controlling the clutch based on the corrected distance parameter includes: and controlling the separation and engagement of the clutch according to the corrected distance parameter and the recalibrated KP point.

According to still another aspect of the embodiment of the present application, there is also provided a clutch control apparatus including: the acquisition module is used for acquiring actual temperature parameters of the clutch friction plate; the first analysis module corrects the preset friction coefficient of the friction plate based on the actual temperature parameter so as to determine a first friction coefficient; a second analysis module that determines an actual transmission torque of the clutch based on the corrected first friction coefficient; and the execution module is used for controlling the clutch based on the actual transmission torque.

According to still another aspect of the embodiments of the present application, there is provided an electronic device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus; wherein the memory is used for storing a computer program; a processor for performing the method steps of any of the embodiments described above by running the computer program stored on the memory.

According to a further aspect of the embodiments of the present application there is also provided a computer readable storage medium having stored therein a computer program, wherein the computer program is arranged to perform the method steps of any of the embodiments described above when run.

In the embodiment of the application, torque can not be effectively transmitted when the temperature of the clutch is too high, so that the clutch is in sliding friction, and therefore, the friction coefficient of the friction plate can be corrected according to the temperature by acquiring the temperature of the friction plate of the clutch, further, the clutch transmission torque can be accurately calculated, and the control precision of the system is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic illustration of a hardware environment for an alternative clutch control method according to an embodiment of the invention;

FIG. 2 is a flow chart of an alternative clutch control method according to an embodiment of the application;

FIG. 3 is a block diagram of an alternative clutch control apparatus according to an embodiment of the present application;

Fig. 4 is a block diagram of an alternative electronic device in accordance with an embodiment of the present application.

Detailed Description

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 such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

According to an aspect of an embodiment of the present application, there is provided a clutch control method. Alternatively, in the present embodiment, the above-described clutch control method may be applied to a hardware environment constituted by the terminal 102 and the server 104 as shown in fig. 1. As shown in fig. 1, the server 104 is connected to the terminal 102 through a network, which may be used to provide services to the terminal or a client installed on the terminal, may set a database on the server or independent of the server, may be used to provide data storage services to the server 104, and may also be used to process cloud services, where the network includes, but is not limited to: the terminal 102 is not limited to a PC, a mobile phone, a tablet computer, etc., but is a wide area network, a metropolitan area network, or a local area network. The clutch control method according to the embodiment of the present application may be executed by the server 104, may be executed by the terminal 102, or may be executed by both the server 104 and the terminal 102. The clutch control method performed by the terminal 102 according to the embodiment of the present application may be performed by a client installed thereon.

Taking the example of the implementation of the clutch control method in this embodiment by the terminal 102 and/or the server 104 as an example, fig. 2 is a schematic flow chart of an alternative clutch control method according to an embodiment of the present application, as shown in fig. 2, the flow chart of the method may include the following steps:

Step S202, acquiring actual temperature parameters of a clutch friction plate;

step S204, correcting the preset friction coefficient of the friction plate based on the actual temperature parameter to obtain a corrected friction coefficient;

Step S206, determining the actual transmission torque of the clutch based on the corrected friction coefficient;

step S208, the clutch is controlled based on the actual transmission torque.

Through the steps S202 to S208, after the temperature of the friction plate of the clutch is obtained, the friction coefficient of the friction plate can be corrected according to the temperature of the friction plate, and the accurate transmission torque is calculated according to the corrected friction coefficient, so that the system control precision is improved.

The change in clutch temperature can have a significant effect on the operating characteristics of the clutch, particularly the coefficient of friction of the clutch plates. The magnitude of the torque transmitted by the clutch is in positive correlation with the magnitude of the coefficient of friction. Therefore, when the electronic control mechanical automatic gearbox (Automated Mechanical Transmission, AMT) is used for controlling the torque of the system, even if other working conditions are the same and only the temperature is different, the torque transmitted by the clutch is changed due to the change of the friction coefficient, so that the control result is deviated, and meanwhile, when the clutch temperature is too high, the friction coefficient of the clutch is rapidly reduced, even the effective torque can not be transmitted, the slip degree of the clutch is further increased, the temperature is continuously increased, and the damage of the clutch is increased.

For the solution in step S202, the actual temperature parameter of the clutch friction plate is obtained. By way of example, the accurate actual temperature parameters of the friction plate can be determined by a heat transfer method in combination with influences of temperature parameters of various components of the clutch, ambient temperature parameters, heat generated by friction and the like, and the actual temperature parameters of the friction plate can also be directly obtained by a temperature sensor. Specifically, the clutch plate temperature is affected by the clutch body temperature, and a certain amount of heat is generated due to friction.

It should be noted that the clutch temperature is closely related to the power-down time and the driving operation time. During driving of the vehicle, heat is generated by sliding friction and the like of the clutch, so that the temperature of the clutch is gradually increased; after the vehicle stops driving when power is off, the clutch loses a heat source for friction heat generation, and the temperature of the clutch gradually drops because the ambient temperature is lower than the temperature of the clutch. Therefore, it is necessary to calculate the clutch temperature at the time of initial power-up of the vehicle, taking into consideration the environmental temperature, the power-down time, the vehicle travel time, the clutch temperature at the time of last power-down, and the like.

When the power-down time is too long, the heat existing before is lost, and the initial temperature of the clutch cannot be basically influenced, at this time, the initial reference temperature can be calculated by considering only environmental factors, and the reference temperature of the clutch is the average value of the oil temperature of the gearbox and the temperature of engine cooling liquid, and the following formula (1):

Wherein T _ini is the reference temperature, T _measd is the initial measured temperature, T _o is the gearbox oil temperature, and T _co is the engine coolant temperature. If the oil temperature or the cooling liquid temperature is too high or too low, the upper limit threshold value or the lower limit threshold value is taken as the initial temperature.

If the power-down time is short, the clutch temperature is affected by the clutch temperature of the previous driving period, and the initial reference temperature is obtained through the following formula (2):

Wherein T _{clcd_ini} is the calculated initial temperature, T _discEE is the temperature of the clutch friction plate at the last power-down time, T _unix is the operating system time, T _storeEE is the storage time of an electrically erasable programmable read-Only Memory (EEPROM), and f _coolg is the cooling coefficient, and the cooling coefficient is obtained by looking up a table of the vehicle speed. The higher the vehicle speed, the greater the cooling coefficient, which is between 0.000006 and 0.0001.

The clutch housing temperature is affected by the air source temperature and the clutch body temperature, the housing temperature at the current moment can be obtained by calculating the heat transferred by the clutch housing temperature, and the housing temperature is obtained by calculating the following formula (3):

Wherein T _c is the clutch housing temperature, T _b is the clutch body temperature, f _BC is the heat transfer coefficient between the clutch body and the clutch housing, T _a is the air source temperature, f _AC is the heat transfer coefficient between the environment and the clutch body, and C _case is the heat capacity of the clutch housing. In this embodiment, the air source temperature is the current ambient temperature.

When the clutch is fully opened or fully closed, the clutch is not in a slipping state, and the friction work is 0; if the clutch is in a slipping state, the friction work P is calculated by the following formula (4):

P＝n_slip×Trq_eng (4)

Where n _slip is the clutch end speed difference and Trq _eng is the engine actual torque.

The clutch plate temperature is calculated by the following formula (5):

Where T _d is the clutch plate temperature, f _pwr is the heat transfer coefficient of heat generated by friction transferred to the friction plate, f _BD is the heat transfer coefficient between the friction plate and the clutch body, and C _disc is the heat capacity of the clutch friction plate.

The temperature of the clutch body is also affected by heat generated by the clutch slip. When the friction work is too small, the clutch is not combined, the temperature of the clutch body is mainly influenced by the oil temperature, and the calculation method is shown as the formula (6):

T_b＝∫f_coolg×T_o+T_b (6)

otherwise, the clutch is engaged and the body temperature is calculated by the following formula (7):

By the calculation method, the temperature of each part of the clutch can be estimated in real time according to the ambient temperature, the clutch itself, friction heat generation and the like, so that the estimation result is more accurate, and the protection of the clutch is more accurate.

The trend of the friction plate temperature change may be obtained based on the friction plate temperature change trend, the current output torque, and the clutch engagement speed over a preset period of time.

For the technical scheme in step S204, the preset friction coefficient of the friction plate is corrected based on the actual temperature parameter, so as to obtain a corrected friction coefficient. As an exemplary embodiment, friction coefficients of friction plates with the same material characteristics are different when the friction plates are at different temperatures, so that an accurate friction coefficient needs to be determined according to the current friction plate temperature value, the clutch combination speed and the friction plate temperature change trend, the friction coefficient can be determined through a table look-up based on the current friction plate temperature value, the clutch combination speed and the friction plate temperature change trend, and the table can be obtained through analysis of rules obtained from experimental data obtained in experiments to further derive a functional relationship, and can also be obtained in a historical database.

As an exemplary embodiment, the temperature rise of the friction plate tends to be caused by slipping of the clutch, and thus the change in the temperature value tends to be a dynamic process, and thus the friction coefficient of the friction plate may also be a dynamic process, and thus, in this embodiment, the current temperature value is obtained and the friction coefficient is corrected based on the current temperature value. The process of correcting based on the current temperature value needs to determine the corrected friction coefficient, determine the actual torque based on the corrected friction coefficient, and change the current temperature state based on the actual torque output, so as to protect the friction plate and related components, however, the change may have a process of changing the torque to the temperature change, and thus may have a certain delay, and may result in insufficient correction, causing the temperature to continue to rise, or cause insufficient output torque due to the correction transition, so in the embodiment, the temperature change trend may be estimated, and the future friction coefficient may be corrected based on the temperature change trend, so as to eliminate the delay phenomenon of torque correction, so that the correction is more accurate.

As an alternative embodiment, the temperature trend of the friction plate may be determined based on the change in the current temperature value and the temperature value at the previous time. As an alternative embodiment, a predicted temperature value after running for a preset period of time with the actual output torque and the corrected friction coefficient may also be calculated based on the corrected friction coefficient determined by the current temperature value and the actual output torque obtained based on the corrected friction coefficient, and the temperature change trend may be determined based on the current temperature value and the predicted temperature value.

In this embodiment, after the temperature change trend is obtained, the current friction coefficient correction amount may be adjusted based on the temperature change trend to adjust the calculated actual transmission torque.

As an exemplary embodiment, the correcting the preset friction coefficient of the friction plate based on the actual temperature parameter includes: determining a first correction coefficient according to an actual temperature parameter, wherein the first correction coefficient is positively correlated with the friction coefficient correction amount and is positively correlated with the actual temperature parameter; and correcting the preset friction coefficient by the first correction coefficient to obtain a corrected friction coefficient.

In this embodiment, when the friction coefficient is corrected by the friction plate temperature, a first correction coefficient of the friction coefficient may be determined according to the friction plate temperature, and the first correction coefficient may be a correction amount, and a relationship between the first correction coefficient and the friction plate temperature and the friction coefficient may be determined, so that the corrected friction coefficient is determined by the first correction coefficient.

As an exemplary embodiment, the clutch is switched from the non-slip state to the slip state and then to the non-slip state during the engagement process, and the change in temperature of the friction plate is mainly generated in the slip state, so that the engagement speed of the clutch has an influence on the temperature change. Illustratively, the faster the clutch engagement speed, the shorter the duration of time relative to being in the slip state, the slower the clutch engagement speed, and the longer the duration of time relative to being in the slip state, and therefore, the clutch engagement speed may affect the temperature variation tendency of the clutch. Therefore, in the present embodiment, the friction coefficient can also be corrected together based on the combination speed and the temperature value.

As an exemplary embodiment, the correcting the preset friction coefficient of the friction plate based on the actual temperature parameter, to obtain a corrected friction coefficient further includes: acquiring the actual combination speed of the clutch; performing negative correlation adjustment on the first correction coefficient based on the actual combination speed to obtain a second correction coefficient; and correcting the preset friction coefficient by the second correction coefficient to obtain a corrected friction coefficient. Judging whether the actual bonding speed is greater than the preset bonding speed; when the actual combination speed is larger than the preset combination speed, the preset friction coefficient is not corrected; and when the actual bonding speed is smaller than the preset bonding speed, correcting the preset friction coefficient, and entering a step of correcting the preset friction coefficient of the friction plate based on the actual temperature parameter.

After the clutch is in a slip state, the temperature of the friction plate is reduced or reduced relatively, the friction coefficient reduction rate is changed or stopped to be reduced, and even the clutch is restored, if the clutch is corrected by the current temperature, when the temperature is higher, the friction coefficient correction amount is increased, the actual output torque reduction amount is increased, meanwhile, when the combination speed is higher, the temperature rise may be reduced or tends to be reduced, due to the delayed correction, the temperature of the friction plate is reduced when the actual torque determined based on the previous correction is output, the friction coefficient is increased, the phenomenon of insufficient actual output torque may be caused, in addition, when the combination speed is lower, the temperature rise may be increased, due to the delayed correction, the temperature of the friction plate is increased to a higher temperature when the actual torque determined based on the previous correction is output, the friction coefficient is smaller, the actual output torque is excessively large, the friction is increased, and the clutch is further damaged.

Therefore, in this embodiment, the friction coefficient may be further adjusted based on the combination speed and the temperature change trend, and by way of example, the actual combination speed of the clutch may be obtained by the sensor, the change trend of the friction plate temperature may be predicted based on the actual combination speed, the first correction coefficient may be further adjusted to obtain the second correction coefficient based on the actual combination speed and the friction plate temperature change trend, and then the corrected friction coefficient may be determined by the second correction coefficient. Specifically, the greater the binding speed and/or the lower the rate of temperature rise, the smaller the correction amount for the coefficient of friction.

When the actual combination speed is larger than the preset combination speed, the preset friction coefficient is not corrected, and the sliding time of the friction plate can be reduced by accelerating the combination of the clutch; and when the temperature value is seriously higher, gear shifting is forbidden, and a warning is sent out, so that the occurrence of excessive high temperature of the clutch is avoided, and the service life of the clutch is prolonged.

As an exemplary embodiment, the clutch control method further includes: acquiring distance parameters between a flywheel of the clutch and the friction plate, which are acquired by a sensor; correcting the distance parameter based on the actual temperature parameter; the clutch is controlled based on the corrected distance parameter. And recalibrating the KP point based on the actual temperature parameter and the corrected friction coefficient. And controlling the separation and engagement of the clutch according to the corrected distance parameter and the recalibrated KP point.

In the combining process of the clutch, the friction plate and the flywheel can generate sliding friction, the temperature of the friction plate can be correspondingly changed according to different sliding friction degrees, the temperature of the friction plate can change to cause the change of friction coefficient, when the friction coefficient is changed, the transmission torque of the clutch can also change, the condition that the torque cannot be effectively transmitted when the clutch reaches the KP point before recalibration can be caused, therefore, KP points corresponding to different temperatures can be different, and the KP points need to be recalibrated according to the current friction plate temperature and the friction coefficient corresponding to the current friction plate temperature.

In addition to the coefficient of friction, temperature can also have an effect on the KP point of the clutch. Typically, the position of the KP point will also change correspondingly due to wear of the clutch and temperature changes, which will have an effect on the accuracy of the clutch control. In addition, under certain conditions, the vehicle can perform self-learning of the position of the clutch KP; if the power-on is performed after self-learning at a higher temperature, KP point position and inaccuracy thereof are caused by lower temperature in the next power-on, system control is affected, and the clutch may not be normally engaged or disengaged in severe cases.

The actual KP point of the clutch is unchanged, but the temperature of the friction plate is different, so that the distance information acquired by the sensor is different, and for the same position, the higher the temperature of the friction plate is, the larger the distance information acquired by the sensor is, so that when the control is performed, the deviation appears in the judgment of the position of the KP point of the clutch according to the temperature change of the friction plate, and the following table is part of experimental data:

TABLE 1

Distance/mm	Temperature/. Degree.C
		38.083	72
37.752	55
		37.475	39
37.297	23
		37.731	6
36.936	-9
		36.752	-26

In the embodiment, the KP point is recalibrated according to the actual temperature of the friction plate and the corrected friction coefficient, the KP point recalibrated according to the temperature of the friction plate is an accurate point corresponding to the current clutch temperature, and then the separation and combination of the clutch and the corrected distance parameter are jointly regulated, so that the separation and combination between the flywheel and the friction plate can be accurately detected through the control system, unnecessary friction is avoided, the clutch is prevented from being excessively heated, and the service life of the clutch is prolonged.

It should be noted that the inaccuracy of the KP point may be due to inaccuracy of the distance information acquired by the sensor, or may be an influence caused by the temperature of the friction plate, and under the condition that the KP point is recalibrated by the temperature of the friction plate and the friction coefficient, the detection result of the sensor is corrected at the same time, so that the recalibrated KP point is further accurate, and the protection of the clutch is enhanced.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM (Read-Only Memory)/RAM (Random Access Memory), magnetic disk, optical disk) and including instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.

According to another aspect of the embodiment of the present application, there is also provided a clutch control device for implementing the above-described clutch control method. FIG. 3 is a schematic illustration of an alternative clutch control apparatus according to an embodiment of the application, as shown in FIG. 3, which may include:

An obtaining module 302, configured to obtain an actual temperature parameter of a clutch friction plate;

the first analysis module 304 corrects a preset friction coefficient of the friction plate based on the actual temperature parameter to determine a first friction coefficient;

A second analysis module 306 that determines an actual transfer torque of the clutch based on the corrected first coefficient of friction;

The execution module 308 controls the clutch based on the actual transfer torque.

It should be noted that, the acquiring module 302 in this embodiment may be configured to perform the step S202, the first analyzing module 304 in this embodiment may be configured to perform the step S204, the second analyzing module 306 in this embodiment may be configured to perform the step S206, and the executing module 308 in this embodiment may be configured to perform the step S208.

It should be noted that the above modules are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to what is disclosed in the above embodiments. It should be noted that the above modules may be implemented in software or in hardware as part of the apparatus shown in fig. 1, where the hardware environment includes a network environment.

According to still another aspect of the embodiments of the present application, there is also provided an electronic device for implementing the above-mentioned clutch control method, which may be a server, a terminal, or a combination thereof.

Fig. 4 is a block diagram of an alternative electronic device, according to an embodiment of the application, as shown in fig. 4, comprising a processor 502, a communication interface 504, a memory 506 and a communication bus 508, wherein the processor 502, the communication interface 504 and the memory 506 communicate with each other via the communication bus 508, wherein,

A memory 506 for storing a computer program;

The processor 502 is configured to execute the computer program stored in the memory 506, and implement the following steps:

Acquiring actual temperature parameters of a clutch friction plate;

correcting the preset friction coefficient of the friction plate based on the actual temperature parameter to obtain a corrected friction coefficient;

Determining an actual transfer torque of the clutch based on the modified friction coefficient;

The clutch is controlled based on the actual transmission torque.

Alternatively, in the present embodiment, the above-described communication bus may be a PCI (PERIPHERAL COMPONENT INTERCONNECT, peripheral component interconnect standard) bus, or an EISA (Extended Industry Standard Architecture ) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 4, but not only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The memory may include RAM or may include non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

As an example, as shown in fig. 4, the memory 502 may include, but is not limited to, the acquisition module 302, the first analysis module 304, the second analysis module 306, and the execution module 308 in the clutch control device. In addition, other module units in the above-mentioned clutch control device may be included, but are not limited to, and are not described in detail in this example.

The processor may be a general purpose processor and may include, but is not limited to: CPU (Central Processing Unit ), NP (Network Processor, network processor), etc.; but may also be a DSP (DIGITAL SIGNAL Processing), ASIC (Application SPECIFIC INTEGRATED Circuit), FPGA (Field-Programmable gate array) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.

Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.

It will be appreciated by those skilled in the art that the structure shown in fig. 3 is merely illustrative, and the device implementing the above-mentioned clutch control method may be a terminal device, and the terminal device may be a smart phone (such as an Android Mobile phone, an iOS Mobile phone, etc.), a tablet computer, a palm computer, a Mobile internet device (Mobile INTERNET DEVICES, MID), a PAD, etc. Fig. 3 is not limited to the structure of the electronic device. For example, the terminal device may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in fig. 3, or have a different configuration than shown in fig. 3.

Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute in association with hardware, the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, etc.

According to yet another aspect of an embodiment of the present application, there is also provided a storage medium. Alternatively, in the present embodiment, the above-described storage medium may be used for executing the program code of the clutch control method.

Alternatively, in this embodiment, the storage medium may be located on at least one network device of the plurality of network devices in the network shown in the above embodiment.

Alternatively, in the present embodiment, the storage medium is configured to store program code for performing the steps of:

Acquiring actual temperature parameters of a clutch friction plate;

The clutch is controlled based on the actual transmission torque.

Alternatively, specific examples in the present embodiment may refer to examples described in the above embodiments, which are not described in detail in the present embodiment.

Alternatively, in the present embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a U disk, ROM, RAM, a mobile hard disk, a magnetic disk or an optical disk.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application 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 one or more computer devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.

In the foregoing embodiments of the present application, 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 several embodiments provided by the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple 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 as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in the present embodiment.

In addition, each functional unit in the embodiments of the present application 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 foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims

1. A clutch control method, characterized by comprising:

Acquiring actual temperature parameters of a clutch friction plate;

controlling a clutch based on the actual transmission torque;

Determining a first correction coefficient according to an actual temperature parameter, wherein the first correction coefficient is positively correlated with the friction coefficient correction amount and is positively correlated with the actual temperature parameter;

correcting the preset friction coefficient by the first correction coefficient to obtain a corrected friction coefficient;

Acquiring the actual combination speed of the clutch;

performing negative correlation adjustment on the first correction coefficient based on the actual combination speed to obtain a second correction coefficient;

And correcting the preset friction coefficient by the second correction coefficient to obtain a corrected friction coefficient.

2. The clutch control method as set forth in claim 1, further comprising:

judging whether the actual bonding speed is greater than a preset bonding speed or not;

When the actual combination speed is larger than the preset combination speed, the preset friction coefficient is not corrected;

And when the actual bonding speed is smaller than the preset bonding speed, correcting the preset friction coefficient, and entering a step of correcting the preset friction coefficient of the friction plate based on the actual temperature parameter.

3. The clutch control method as set forth in claim 1, further comprising:

Acquiring distance parameters between a flywheel of the clutch and the friction plate, which are acquired by a sensor;

correcting the distance parameter based on the actual temperature parameter;

the clutch is controlled based on the corrected distance parameter.

4. The clutch control method according to claim 3, wherein,

And recalibrating the KP point based on the actual temperature parameter and the corrected friction coefficient.

5. The clutch control method according to claim 3 or 4, wherein the controlling the clutch based on the corrected distance parameter includes:

And controlling the separation and engagement of the clutch according to the corrected distance parameter and the recalibrated KP point.

6. A clutch control apparatus, characterized by being applied to the clutch control method according to claim 1, comprising:

The acquisition module is used for acquiring actual temperature parameters of the clutch friction plate;

the first analysis module corrects the preset friction coefficient of the friction plate based on the actual temperature parameter so as to determine a first friction coefficient;

A second analysis module that determines an actual transmission torque of the clutch based on the corrected first friction coefficient;

and the execution module is used for controlling the clutch based on the actual transmission torque.

7. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, characterized in that,

The memory is used for storing a computer program;

the processor is configured to execute the clutch control method according to any one of claims 1 to 5 by running the computer program stored on the memory.

8. A computer-readable storage medium, characterized in that the storage medium has stored therein a computer program, wherein the computer program is arranged to execute the clutch control method according to any one of claims 1 to 5 when run.