CN112208330A

CN112208330A - Starting control method and device of wet double clutch, electronic equipment and vehicle

Info

Publication number: CN112208330A
Application number: CN202011019358.0A
Authority: CN
Inventors: 曹珊; 马岩; 宁甲奎; 曹龙; 朱桂庆
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-12

Abstract

The embodiment of the invention discloses a starting control method and device of a wet double clutch, electronic equipment and a vehicle. The starting control method of the wet double clutch is based on the position of an accelerator pedal, the change rate of the position of the accelerator pedal and starting gradient information, the starting control method is used for mapping the starting control method to a fuzzy domain in a quantized mode, and the oil pressure increment of a piston cylinder is output by using a fuzzy control rule table, so that the oil pressure in a piston cavity of the wet double clutch is controlled through the intention of a driver and the gradient information, and the purpose of stably starting the wet double clutch at different gradients is achieved by controlling the starting combination speed of. When the vehicle starts on a slope, fuzzy correction is carried out on the pressure value of the clutch according to the slope information, the opening degree of the accelerator and the change rate of the opening degree of the accelerator, smoothness and rapidness performance indexes are met in the starting process, the clutch is started stably and rapidly in the vehicle slope starting process, and starting impact is avoided.

Description

Starting control method and device of wet double clutch, electronic equipment and vehicle

Technical Field

The embodiment of the invention relates to the technical field of vehicles, in particular to a starting control method and device of a wet double clutch, electronic equipment and a vehicle.

Background

Dual clutch automatic transmissions (DCT) have been known for nearly 70 years. Through the cooperation work of two sets of clutches, accomplish the fender position and switch, compare with traditional single clutch transmission, solved the problem of the power interruption of shifting. And the efficiency is higher than that of the traditional torque converter type automatic transmission.

In the process of vehicle starting control, the vehicle is ensured to smoothly complete starting action according to the intention of a driver, and a transmission system is ensured to have good performance, so the starting control is one of the difficulties and the key points of various automatic transmissions, and the double-clutch automatic transmission is not exceptional.

In the starting process of the vehicle, the clutch control problem has the characteristics of nonlinearity, time-varying property, strong coupling and the like, and the intention of a driver, the vehicle condition and the road condition are changeable. At present, the problem of gradient is not considered in starting fuzzy control, and the requirements of vehicles on starting under different driving environments cannot be met.

Disclosure of Invention

The embodiment of the invention provides a starting control method and device of a wet double clutch, electronic equipment and a vehicle, and aims to improve the accuracy of starting combined speed control of the wet double clutch on different slopes.

In a first aspect, an embodiment of the present invention provides a starting control method for a wet dual clutch, including:

determining the position of an accelerator pedal, the change rate of the position of the accelerator pedal and starting gradient information;

obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder from a fuzzy control rule table according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information;

according to the fuzzy output quantity of the oil pressure increment of the piston cylinder and the proportional factor of the oil pressure increment of the piston cylinder, mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder to obtain the oil pressure increment of the piston cylinder;

and controlling the starting combination speed of the wet double clutch according to the oil pressure increment of the piston cylinder so as to realize the stable starting of the wet double clutch on slopes with different gradients.

In a second aspect, an embodiment of the present invention further provides a starting control device for a wet dual clutch, including:

the information determining module is used for determining the position of an accelerator pedal, the change rate of the position of the accelerator pedal and starting gradient information;

the fuzzy output quantity determining module is used for obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder from a fuzzy control rule table according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information;

the oil pressure increment determining module is used for mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder according to the fuzzy output quantity of the oil pressure increment of the piston cylinder and the scale factor of the oil pressure increment of the piston cylinder to obtain the oil pressure increment of the piston cylinder;

and the combination speed determining module is used for controlling the starting combination speed of the wet double clutch according to the oil pressure increment of the piston cylinder so as to realize the stable starting of the wet double clutch on slopes with different gradients.

In a third aspect, an embodiment of the present invention further provides an electronic device, including:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors implement the method for controlling the starting of the wet double clutch according to any embodiment of the present invention.

In a fourth aspect, the embodiment of the invention further provides a vehicle, which comprises a wet double clutch capable of executing the starting control method of the wet double clutch.

According to the embodiment of the invention, the accelerator pedal position change rate and the starting gradient information are quantitatively mapped to the fuzzy domain, and the oil pressure increment of the piston cylinder is output by utilizing the fuzzy control rule table, so that the oil pressure in the piston cavity of the wet double clutch is controlled by the intention of a driver and the gradient information, and the purpose of stably starting at different gradients is achieved by controlling the starting combination speed of the clutch. When the vehicle starts on a slope, fuzzy correction is carried out on the pressure value of the clutch according to the slope information, the opening degree of the accelerator and the change rate of the opening degree of the accelerator, smoothness and rapidness performance indexes are met in the starting process, the clutch is started stably and rapidly in the vehicle slope starting process, and starting impact is avoided.

Drawings

Fig. 1 is a flowchart of a starting control method of a wet dual clutch according to a first embodiment of the present invention;

fig. 2 is a flowchart of a starting control method of the wet dual clutch according to a second embodiment of the present invention;

FIG. 3 is a schematic diagram of a fuzzy controller;

fig. 4 is a schematic structural diagram of a starting control device of a wet double clutch according to a third embodiment of the invention;

fig. 5 is a schematic structural diagram of an electronic device in a fourth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Example one

Fig. 1 is a flowchart of a starting control method of a wet dual clutch according to a first embodiment of the present invention, which is applicable to controlling a starting speed of the wet dual clutch on a slope with different slopes. The method can be executed by a fuzzy controller of the wet double clutch, which can be realized in a software and/or hardware manner and can be configured in the vehicle. As shown in fig. 1, the method specifically includes:

step 101, determining an accelerator pedal position, an accelerator pedal position change rate and starting gradient information.

The fuzzy controller can acquire the position of the accelerator pedal through a position sensor arranged on the accelerator pedal, and the change rate of the position of the accelerator pedal can be calculated through the change value of the position of the accelerator pedal in unit time.

The starting intention of the driver can be judged by an accelerator pedal signal, and the accelerator pedal is deeply stepped, which indicates that the driver wants to have short starting time and needs to accelerate the engagement speed; conversely, if the pedal is shallow, meaning that smooth vehicle launch is desired, the engagement speed should be slowed. The displacement change rate of the accelerator pedal is also an important parameter reflecting the intention of the driver, and the accelerator pedal is pressed suddenly to indicate that the driver wants to start quickly; if the accelerator pedal is depressed slowly, this means that the driver wishes to take off at a slower engagement speed. The output engine target rotational speed is large when a quick start is desired, and is small when a start at a low engagement speed is desired. Therefore, the control intention of the driver is judged by collecting and analyzing the position of the accelerator pedal and the change rate of the position of the accelerator pedal. In addition, the information on the gradient of the slope on which the vehicle starts is also effective in starting, and the magnitude of the gradient affects how much the speed is increased.

Specifically, the position of an accelerator pedal is received through a CAN signal on the vehicle, the change rate of the position of the accelerator pedal is obtained by derivation of the position value of the accelerator pedal, and the starting gradient information is obtained by a single pendulum type angular displacement sensor arranged on the vehicle.

And 102, obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy control rule table according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information.

The fuzzy control rule table is a preset mapping table reflecting the relationship among the position of an accelerator pedal, the change rate of the position of the accelerator pedal, starting gradient information and the oil pressure increment of a piston cylinder. Consists of several control rules, which can be determined, for example, by the experience of a control expert.

Specifically, the result with the relevant mapping relation is found from the fuzzy control rule table through the obtained accelerator pedal position, the accelerator pedal position change rate and the starting gradient information to be used as the fuzzy output quantity of the oil pressure increment of the piston cylinder.

In one possible embodiment, the fuzzy control rule table is determined by:

setting a basic universe of accelerator pedal position and a universe of accelerator pedal position, setting a basic universe of accelerator pedal position change rate and a universe of accelerator pedal position change rate, setting a basic universe of starting gradient information and a universe of starting gradient information, and calculating a quantization factor of accelerator pedal position, a quantization factor of accelerator pedal position change rate and a quantization factor of starting gradient information;

setting a basic universe of discourse of the oil pressure increment of the piston cylinder and a fuzzy universe of the oil pressure increment of the piston cylinder, and calculating a scale factor of the oil pressure increment of the piston cylinder;

setting a fuzzy subset of an accelerator pedal position, a fuzzy subset of an accelerator pedal position change rate, a fuzzy subset of starting gradient information and a fuzzy subset of oil pressure increment of a piston cylinder;

determining a mapping relationship between the fuzzy subset of the accelerator pedal position, the fuzzy subset of the accelerator pedal position change rate, the fuzzy subset of the starting grade information and the fuzzy subset of the piston cylinder oil pressure increment to establish a fuzzy control rule table.

The fuzzy domain and the basic domain of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information can be determined through quantitative analysis of input variables in advance, and can be specifically set according to actual conditions. The quantization factor is used for reflecting the conversion relation of converting the physical value of the input quantity into the corresponding value in the fuzzy subset, and is determined according to the size of the fuzzy domain of the input variable and the size of the basic domain. The fuzzy subset represents fuzzy value ranges of the input variables and the output variables, and illustratively, the fuzzy domain is divided into 5 language variable values such as very small VS, small S, medium M, large B, very large VB and the like for fuzzifying the values of the input variables and the output variables, and optionally, the fuzzy domain can be further subdivided.

Illustratively, to increase the sensitivity of the control and facilitate application of fuzzy rules, the accelerator pedal position and the amount of accelerator pedal position change and the ramp information are quantized and mapped to a set of fuzzy universes { -m, -m +1, …, 0, …, m-1, m }. The control effect of the system is improved as m is increased, but the control rule is too complicated when m is too large. Therefore, the value of m needs to be determined according to the actual situation, namely the value range of the fuzzy domain of each variable is determined.

In one possible embodiment, the basic argument range of the accelerator pedal position is [0, 100], the physical quantity is 0-100%, the ambiguity range of the accelerator pedal position is [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], the quantization factor of the accelerator pedal position is 10/100 ═ 0.1, and the ambiguity subset of the accelerator pedal position is { VSA, SA, MA, BA, VBA };

the basic domain of the accelerator pedal position change rate is [ -50, 50], the fuzzy domain of the accelerator pedal position change rate is [ -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5], and the quantization factor of the accelerator pedal position change rate is 5/50 ═ 0.1; the fuzzy subset of the accelerator pedal position change rate is { VSC, SC, MC, BC, VBC };

the basic domain of the starting gradient information is [ -8, 8], the fuzzy domain of the accelerator pedal position change rate is [ -2, -1, 0, 1, 2], the quantization factor of the accelerator pedal position change rate is 2/8 ═ 0.25, and the fuzzy subset of the starting gradient information is { NBG, NSG, ZG, PSG, PBG };

the basic argument of the piston cylinder oil pressure increment is [0, 25], the fuzzy argument of the engine target rotating speed is [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], the scale factor of the piston cylinder oil pressure increment is 10/25 ═ 0.4, and the fuzzy subset of the piston cylinder oil pressure increment is { VSP, SP, MP, BP, VBP }.

The determined fuzzy control rule table is shown in table 1 according to the above setting conditions.

TABLE 1 fuzzy control rules Table

The table 1 is a fuzzy rule table of accelerator pedal position change rate, accelerator pedal position and starting gradient information, and the table 1 is obtained by performing expert analysis and summary on each possible fuzzy value of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information and performing appropriate modification in a test, and the table 1 is used for providing a control rule when a fuzzy controller performs analysis. The relationship between the fuzzy value of each input variable and the fuzzy output quantity of the output variable can be obtained from table 1, and the basic form of the fuzzy control rule table is as follows:

if the accelerator pedal position is VSA, the accelerator pedal position change rate is VSC, and the starting gradient information is NBG, the piston cylinder oil pressure increment is VSP;

if the accelerator pedal position is VSA, the accelerator pedal position change rate is SC, and the starting gradient information is NBG, the piston cylinder oil pressure increase is VSP;

……

if the accelerator pedal position is SA, the accelerator pedal position change rate is MC and the starting gradient information is NSG, the piston cylinder oil pressure increment is SP;

……

if the accelerator pedal position is VBA, the accelerator pedal position change rate is VBC, and the starting gradient information is PBG, the piston cylinder oil pressure increase is VBP.

As can be seen from table 1, the control rule of the fuzzy controller includes 5 × 5 — 125 pieces.

And 103, mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder according to the fuzzy output quantity of the oil pressure increment of the piston cylinder and the scale factor of the oil pressure increment of the piston cylinder to obtain the oil pressure increment of the piston cylinder.

Wherein the scaling factor is a value that translates the physical value into a value corresponding to the fuzzy subset. Because the output of the fuzzy controller cannot be directly applied to a control system, a scale factor is needed to convert an output variable from a fuzzy domain to a basic domain of actual output, and finally the output variable acts on the system.

And 104, controlling the starting combination speed of the wet double clutch according to the oil pressure increment of the piston cylinder so as to realize the stable starting of the wet double clutch on slopes with different gradients.

An important parameter for starting control of the wet double clutch is clutch starting combination speed, and the combination speed of the clutch is controlled by oil pressure in a piston cavity of the wet clutch. The oil pressure in the piston cavity of the wet clutch is obtained by fuzzy control of the intention of a driver and the ramp information, so that the starting combination speed of the clutch is controlled to achieve the purpose of stable starting at different slopes.

Therefore, the control on the oil pressure increment of the piston cylinder is realized by fully considering the starting control intention of a driver and the gradient information of a starting ramp, namely the control on the starting combination speed of the wet double clutch can be realized.

Example two

Fig. 2 is a flowchart of a starting control method of a wet dual clutch according to a second embodiment of the present invention, and the second embodiment is further optimized based on the first embodiment. As shown in fig. 2, the method includes:

step 201, determining an accelerator pedal position, an accelerator pedal position change rate and starting gradient information.

Step 202, determining the position of an accelerator pedal, the change rate of the position of the accelerator pedal and the fuzzy input quantity of starting gradient information according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information; wherein the fuzzy input amount is determined in the fuzzy subset.

As shown in fig. 3, a structure diagram of the fuzzy controller is shown, a hill start fuzzy correction controller module in the fuzzy controller implements a three-input single-output fuzzy control mode, receives an accelerator pedal position and an accelerator pedal position variation, performs quantitative mapping to a fuzzy domain through slope information obtained by a sensor, and obtains three inputs through quantization, wherein the three inputs are any element in a fuzzy subset predetermined by each input variable. And by utilizing the fuzzy control rule table, the output variable is a fuzzy output value of the oil pressure increment of the piston cylinder and is also any element in a fuzzy subset of the oil pressure increment of the piston cylinder.

Specifically, the accelerator pedal position and the accelerator pedal position change rate are quantized by using quantization factors respectively, the starting gradient information is quantized by using the quantization factors and is mapped to a fuzzy domain set, and respective fuzzy values are obtained through a triangularly distributed membership function. The fuzzy correction controller is used for carrying out fuzzy correction on the clutch control parameter clutch pressure value, so that the clutch hill start has self-adaptability.

In one possible embodiment, step 202 includes:

mapping the accelerator pedal position to a fuzzy domain of the accelerator pedal position by adopting a quantization factor of the accelerator pedal position to obtain an accurate input value of the accelerator pedal position, and converting the accurate input value of the accelerator pedal position into a fuzzy input quantity of the accelerator pedal position through a membership function;

mapping the accelerator pedal position change rate to a fuzzy domain of the accelerator pedal position change rate by adopting a quantization factor of the accelerator pedal position change rate to obtain an accurate input value of the accelerator pedal position change rate, and converting the accurate input value of the accelerator pedal position change rate into a fuzzy input quantity of the accelerator pedal position change rate through a membership function;

and mapping the starting gradient information to a fuzzy domain of the starting gradient information by adopting a quantization factor of the starting gradient information to obtain an accurate input value of the starting gradient information, and converting the accurate input value of the starting gradient information into a fuzzy input quantity of the starting gradient information through a membership function.

The three quantization factors are used for respectively carrying out level dispersion on the collected accelerator pedal position, the accelerator pedal position change rate and the starting gradient information to obtain three corresponding accurate input values, and then the three accurate input values are converted into corresponding fuzzy input quantities through membership function. Illustratively, the pedal position is 50%, the corresponding precise input value is 5, and the corresponding fuzzy subset by the membership function is MC.

And step 203, obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder according to the fuzzy input quantity of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information based on the mapping relation in the fuzzy control rule table.

Therefore, the fuzzy control rule table comprises the mapping relation between the fuzzy input quantity of each input variable and the fuzzy output quantity of each output variable, so that the corresponding mapping relation can be found through the calculated fuzzy input quantities of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information in the current starting state, and the fuzzy output quantity of the oil pressure increment of the piston cylinder is obtained.

And step 204, mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder through a membership function to obtain an accurate output value of the oil pressure increment of the piston cylinder.

In contrast to the fuzzification of the input variables, the fuzzy output of the obtained piston cylinder oil pressure increment needs to be deblurred, i.e. from the fuzzy domain. To the fundamental universe of discourse. And obtaining an accurate output value of the oil pressure increment of the piston cylinder.

And step 205, obtaining the oil pressure increment of the piston cylinder according to the accurate output value of the oil pressure increment of the piston cylinder and the scale factor of the oil pressure increment of the piston cylinder.

Specifically, the output variable is converted into an accurate quantity through a maximum membership method, then is converted into an actual output range through a scale, and is multiplied by a scale factor to obtain the oil pressure increment of the piston cylinder.

The membership function generally includes a gaussian membership function, a generalized bell-shaped membership function, an S-shaped membership function, a trapezoidal membership function, a triangular distribution membership function, and a Z-shaped membership function. In the embodiment, a triangular distribution function is selected as a membership function for three input quantities, namely an accelerator pedal position, an accelerator pedal position change rate and starting gradient information, and an output quantity, namely a piston cylinder oil pressure increment.

And step 206, controlling the starting combination speed of the wet double clutch according to the oil pressure increment of the piston cylinder so as to realize the stable starting of the wet double clutch on slopes with different gradients.

EXAMPLE III

Fig. 4 is a schematic structural diagram of a starting control device of a wet dual clutch according to a third embodiment of the present invention, which is applicable to controlling the starting speed of the wet dual clutch on slopes with different slopes. As shown in fig. 4, the apparatus includes:

an information determination module 410 for determining accelerator pedal position, accelerator pedal position rate of change, and starting grade information;

the fuzzy output quantity determining module 420 is used for obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder from a fuzzy control rule table according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information;

the oil pressure increment determining module 430 is used for mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder according to the fuzzy output quantity of the oil pressure increment of the piston cylinder and the scale factor of the oil pressure increment of the piston cylinder to obtain the oil pressure increment of the piston cylinder;

and the combination speed determining module 440 is used for controlling the starting combination speed of the wet double clutch according to the oil pressure increment of the piston cylinder so as to realize the stable starting of the wet double clutch on slopes with different gradients.

Optionally, the apparatus includes a fuzzy control rule table determining module, specifically configured to:

and determining a mapping relation among the fuzzy subset of the position of the accelerator pedal, the fuzzy subset of the position change rate of the accelerator pedal, the fuzzy subset of the starting gradient information and the fuzzy subset of the oil pressure increment of the piston cylinder so as to establish the fuzzy control rule table.

Optionally, the basic argument range of the accelerator pedal position is [0, 100], the physical quantity is 0-100%, the ambiguity range of the accelerator pedal position is [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], the quantization factor of the accelerator pedal position is 10/100 ═ 0.1, and the ambiguity subset of the accelerator pedal position is { VSA, SA, MA, BA, VBA };

the basic argument of the piston cylinder oil pressure increment is [0, 25], the fuzzy argument of the engine target rotating speed is [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], the scale factor 10/25 of the piston cylinder oil pressure increment is 0.4, and the fuzzy subset of the piston cylinder oil pressure increment is { VSP, SP, MP, BP, VBP }.

Optionally, the fuzzy output determining module 420 includes:

the fuzzy input quantity determining unit is used for determining the fuzzy input quantity of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information according to the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information; wherein the fuzzy input amount is determined in the fuzzy subset;

and the fuzzy output quantity determining unit is used for obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder according to the fuzzy input quantity of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information on the basis of the mapping relation in the fuzzy control rule table.

Optionally, the fuzzy input amount determining unit is specifically configured to:

Optionally, the oil pressure increment determination module 430 is specifically configured to:

mapping the fuzzy output quantity of the oil pressure increment of the piston cylinder from the fuzzy domain of the oil pressure increment of the piston cylinder to the basic domain of the oil pressure increment of the piston cylinder through a membership function to obtain an accurate output value of the oil pressure increment of the piston cylinder;

and obtaining the oil pressure increment of the piston cylinder according to the accurate output value of the oil pressure increment of the piston cylinder and the scale factor of the oil pressure increment of the piston cylinder.

Optionally, the membership function is a triangle distribution membership function.

The starting control device of the wet double clutch provided by the embodiment of the invention can execute the starting control method of the wet double clutch provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the starting control method of the wet double clutch.

Example four

Fig. 5 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary electronic device 12 suitable for use in implementing embodiments of the present invention. The electronic device 12 shown in fig. 5 is only an example and should not bring any limitation to the function and the scope of use of the embodiment of the present invention.

As shown in FIG. 5, electronic device 12 is embodied in the form of a general purpose computing device. The components of electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory device 28, and a bus 18 that couples various system components including the system memory device 28 and the processing unit 16.

Bus 18 represents one or more of any of several types of bus structures, including a memory device bus or memory device controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (M) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

Electronic device 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.

The system storage 28 may include computer system readable media in the form of volatile storage, such as Random Access Memory (RAM)30 and/or cache storage 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Storage 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in storage 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.

Electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with device 12, and/or with any devices (e.g., network card, modem, etc.) that enable device 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 20. As shown in FIG. 5, the network adapter 20 communicates with the other modules of the electronic device 12 via the bus 18. It should be appreciated that although not shown in FIG. 5, other hardware and/or software modules may be used in conjunction with electronic device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

The processing unit 16 executes various functional applications and data processing by running a program stored in the system storage device 28, for example, to implement a method for controlling starting of a wet dual clutch provided by an embodiment of the present invention, including:

EXAMPLE five

The fifth embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored thereon, and when the computer program is executed by a processor, the method for controlling starting of a wet dual clutch provided in the fifth embodiment of the present invention is implemented, where the method includes:

Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltal, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

The embodiment also provides a vehicle comprising a wet double clutch automatic transmission which can execute the starting control method of the wet double clutch in the scheme. The wet dual clutch automatic transmission includes a fuzzy controller for performing a starting control method of the wet dual clutch.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A starting control method of a wet type double clutch is characterized by comprising the following steps:

2. The method of claim 1, wherein the fuzzy control rule table is determined by:

3. The method according to claim 2, wherein the basic universe of argument of accelerator pedal position is [0, 100], the physical quantity is 0-100%, the ambiguity universe of accelerator pedal position is [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10], the quantization factor of accelerator pedal position is 10/100 ═ 0.1, the ambiguity subset of accelerator pedal position is { VSA, SA, MA, BA, VBA };

4. The method of claim 2, wherein obtaining the fuzzy output of piston cylinder oil pressure increase from a fuzzy control law table based on the accelerator pedal position, the accelerator pedal position rate of change, and the launch grade information comprises:

determining the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the fuzzy input quantity of the starting gradient information according to the position of the accelerator pedal, the change rate of the position of the accelerator pedal and the starting gradient information; wherein the fuzzy input amount is determined in the fuzzy subset;

and obtaining the fuzzy output quantity of the oil pressure increment of the piston cylinder according to the fuzzy input quantity of the accelerator pedal position, the accelerator pedal position change rate and the starting gradient information based on the mapping relation in the fuzzy control rule table.

5. The method of claim 4, wherein determining the fuzzy input amount of accelerator pedal position, accelerator pedal position rate of change, and starting grade information based on the accelerator pedal position, accelerator pedal position rate of change, and starting grade information comprises:

6. The method of claim 1, wherein mapping the fuzzy output of the piston cylinder oil pressure increment from a fuzzy domain of piston cylinder oil pressure increments to a cardinal domain of piston cylinder oil pressure increments based on the fuzzy output of the piston cylinder oil pressure increments and a scaling factor for the piston cylinder oil pressure increments to obtain the piston cylinder oil pressure increments, comprising:

7. The method according to any one of claims 5 or 6, wherein the membership function is a triangularly distributed membership function.

8. A starting control device of a wet double clutch is characterized by comprising:

9. An electronic device, comprising:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the launch control method of the wet dual clutch as recited in any one of claims 1 to 7.

10. A vehicle characterized by comprising a wet double clutch capable of executing the wet double clutch startup control method of any one of claims 1 to 7.