Wet dual clutch transmission control method, device, equipment and readable medium

Abstract

The application discloses a wet double-clutch transmission control method, device, equipment and readable medium. When a FASTOFF function of a target vehicle is in an activated state, it is determined whether a running gear of a wet double-clutch transmission of the target vehicle meets a preset control condition; when the running gear meets the control condition, a current vehicle speed threshold of the target vehicle is determined; and the running gear is controlled according to the current vehicle speed threshold and a current vehicle speed of the target vehicle. The scheme of the application can comprehensively judge the control information of the running gear according to the running gear of the transmission and the current vehicle speed when the FASTOFF function of the vehicle is activated, thereby overcoming the problem that the running gear is forcibly controlled when the FASTOFF function is activated, and flexible control of the running gear is realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a wet dual-clutch transmission control method, apparatus, device, and readable medium. Background Technology

[0002] In some current wet dual-clutch automatic transmission control strategies, when the vehicle is rapidly releasing the accelerator, the FASTOFF function is activated by judging the throttle change slope and accelerator pedal opening, thereby preventing the transmission from upshifting.

[0003] However, this control method forcibly controls the transmission gears, making it impossible to upshift according to the driver's driving intentions under various conditions such as slopes and high altitudes, thus affecting the user's driving experience.

[0004] Therefore, a control method is needed to enable flexible control of the driving gears when the FASTOFF function is activated in a wet dual-clutch automatic transmission. Summary of the Invention

[0005] This invention provides a wet dual-clutch transmission control method, apparatus, device, and readable medium to solve the problem of inflexible control of the wet dual-clutch transmission when the vehicle's FASTOFF function is activated.

[0006] According to one aspect of the present invention, a wet dual-clutch transmission control method is provided, comprising:

[0007] When the FASTOFF function of the target vehicle is activated, determine whether the driving gear of the wet dual-clutch transmission of the target vehicle meets the preset control conditions.

[0008] When the driving gear meets the control conditions, the current vehicle speed threshold of the target vehicle is determined;

[0009] The driving gear is controlled based on the current vehicle speed threshold and the current vehicle speed of the target vehicle.

[0010] Optionally, the control condition is that the driving gear is greater than 2.

[0011] Optionally, determining the current speed threshold of the target vehicle includes:

[0012] Determine the base vehicle speed threshold and at least one compensation coefficient for the target vehicle;

[0013] The current vehicle speed threshold is determined based on the base vehicle speed threshold and at least one compensation coefficient.

[0014] Optionally, determining the base vehicle speed threshold for the target vehicle includes:

[0015] Determine the current driving mode of the target vehicle;

[0016] The base speed threshold is obtained by looking up the current driving mode and the driving gear in a first correspondence table, wherein the first correspondence table includes at least one correspondence between driving mode and driving gear and base speed threshold.

[0017] Optionally, the compensation coefficient includes: a slope compensation coefficient; correspondingly, determining the compensation coefficient for the target vehicle includes:

[0018] The corresponding slope interpolation is obtained based on the real-time slope signal of the target vehicle;

[0019] The slope interpolation and the driving gear are input into a second correspondence table to obtain the slope compensation coefficient. The second correspondence table includes at least one correspondence between the slope interpolation, the driving gear, and the slope compensation coefficient.

[0020] Optionally, the compensation coefficient includes a high-altitude compensation coefficient; correspondingly, determining the compensation coefficient of the target vehicle includes:

[0021] The corresponding atmospheric pressure interpolation is obtained based on the atmospheric pressure coefficient;

[0022] The plateau compensation coefficient is obtained by looking up the air pressure interpolation and the driving gear in a third correspondence table. The third correspondence table includes at least one correspondence between air pressure interpolation, driving gear and slope compensation coefficient.

[0023] Optionally, controlling the driving gear based on the current vehicle speed threshold and the current vehicle speed of the target vehicle includes:

[0024] When the current vehicle speed is greater than the current vehicle speed threshold, an upshift operation is performed.

[0025] According to another aspect of the present invention, a wet dual-clutch transmission control device is provided, comprising:

[0026] The control condition determination unit is used to determine whether the driving gear of the wet dual-clutch transmission of the target vehicle meets the preset control conditions when the FASTOFF function of the target vehicle is activated.

[0027] The vehicle speed threshold determination unit is used to determine the current vehicle speed threshold of the target vehicle when the driving gear meets the control conditions.

[0028] The driving gear control unit is used to control the driving gear according to the current vehicle speed threshold and the current vehicle speed of the target vehicle.

[0029] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0030] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the wet dual-clutch transmission control method according to any embodiment of the present invention.

[0031] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the wet dual-clutch transmission control method according to any embodiment of the present invention.

[0032] The technical solution of this invention determines whether the driving gear of the wet dual-clutch transmission of the target vehicle meets preset control conditions when the FASTOFF function of the target vehicle is activated; when the driving gear meets the control conditions, the current vehicle speed threshold of the target vehicle is determined; and the driving gear is controlled according to the current vehicle speed threshold and the current vehicle speed. This invention overcomes the problem of forced control of the driving gear when the FASTOFF function is activated by comprehensively judging the control information of the driving gear based on the transmission's driving gear and the current vehicle speed, thus achieving flexible control of the driving gear.

[0033] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a flowchart of a wet dual-clutch transmission control method provided in Embodiment 1 of the present invention;

[0036] Figure 2 This is a schematic diagram of a first correspondence table applicable to Embodiment 1 of the present invention;

[0037] Figure 3This is a schematic diagram of a correspondence table between real-time slope signals and slope interpolation applicable to Embodiment 1 of the present invention;

[0038] Figure 4 This is a schematic diagram of a second correspondence table applicable to Embodiment 1 of the present invention;

[0039] Figure 5 This is a schematic diagram of a table showing the correspondence between atmospheric pressure coefficient and atmospheric pressure interpolation applicable to Embodiment 1 of the present invention;

[0040] Figure 6 This is a schematic diagram of a third correspondence table applicable to Embodiment 1 of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of a wet dual-clutch transmission control device provided in Embodiment 3 of the present invention;

[0042] Figure 8 This is a schematic diagram of the structure of an electronic device that implements the wet dual-clutch transmission control method of the present invention. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] Example 1

[0046] Figure 1This is a flowchart of a wet dual-clutch transmission control method provided in Embodiment 1 of the present invention. This embodiment is applicable to situations where the gear positions of a wet dual-clutch transmission are flexibly controlled when the vehicle's FASTOFF function is activated. This method can be executed by a wet dual-clutch transmission control device, which can be implemented in hardware and / or software. This wet dual-clutch transmission control device can be configured in a vehicle. Figure 1 As shown, the method includes:

[0047] S110. When the FASTOFF function of the target vehicle is activated, determine whether the driving gear of the wet dual-clutch transmission of the target vehicle meets the preset control conditions.

[0048] Some current automatic transmission control strategies activate the FastOff function by judging the throttle change slope and accelerator pedal opening when the vehicle is suddenly released from the accelerator, thereby preventing the transmission from upshifting. However, this control method is too inflexible and cannot upshift according to the driver's driving intentions under various conditions such as slopes and high altitudes, which affects the user's driving experience.

[0049] When the vehicle rapidly releases the accelerator, the FASTOFF function is activated by judging the throttle change slope and accelerator pedal opening. When the FASTOFF function activation flag FASTOFFFlag ≠ 1, the FASTOFF function is not activated, and gear shifting is performed according to the normal shift table; when the FASTOFF function activation flag FASTOFFFlag = 1, the FASTOFF control strategy is activated.

[0050] The conditions for activating the FASTOFF function with the FASTOFFFlag set to 1 include, but are not limited to, the following conditions being met simultaneously:

[0051] a) The gear shift lever is not in manual shifting mode;

[0052] b) The gear shift lever is not in the P, R, N position;

[0053] c) The vehicle speed exceeds a certain threshold FASTOFFSPLimit, which can be calibrated;

[0054] d) The transmission oil temperature exceeds a certain threshold OilTempLimit, which can be calibrated;

[0055] e) The accelerator pedal release speed is below a certain threshold fastOffDthLimit, which can be calibrated according to the driving mode;

[0056] f) The accelerator pedal release time does not exceed a certain threshold TimeFOfIdleDelay, which is calibrated based on the accelerator pedal release speed.

[0057] In this embodiment of the invention, the control condition is that the driving gear is greater than 2.

[0058] If the current gear is less than 2, directly shift the driving gear to 2. If the driving gear is 2, there is no need to shift the driving gear.

[0059] S120. When the driving gear meets the control conditions, determine the current vehicle speed threshold of the target vehicle.

[0060] In this embodiment of the invention, determining the current vehicle speed threshold of the target vehicle includes:

[0061] Determine the base vehicle speed threshold and at least one compensation coefficient for the target vehicle;

[0062] The current vehicle speed threshold is determined based on the base vehicle speed threshold and at least one compensation coefficient.

[0063] The current speed threshold represents the upper limit of the appropriate speed for the target vehicle in its current state. If the speed exceeds the current speed threshold, the target vehicle needs to be shifted to adapt to the speed.

[0064] In this embodiment of the invention, determining the base vehicle speed threshold of the target vehicle includes:

[0065] Determine the current driving mode of the target vehicle;

[0066] The base speed threshold is obtained by looking up the current driving mode and the driving gear in a first correspondence table, wherein the first correspondence table includes at least one correspondence between driving mode and driving gear and base speed threshold.

[0067] The driving modes include, but are not limited to, Eco, Comfort, and Sport modes, which can be freely selected by the driver based on driving habits and road conditions. For the calculation of the base speed threshold (SPH), the corresponding base speed threshold is first obtained by looking up the target vehicle's current driving mode in a first correspondence table. This first correspondence table can be calibrated according to actual needs. For example, Figure 2 This is a schematic diagram of a first correspondence table applicable to Embodiment 1 of the present invention, as shown below. Figure 2 As shown, assuming the current driving mode of the target vehicle is comfort mode and the gear is 3, the corresponding basic speed threshold is 40km / h.

[0068] In this embodiment of the invention, the compensation coefficient includes: a slope compensation coefficient; correspondingly, determining the compensation coefficient of the target vehicle includes:

[0069] The corresponding slope interpolation is obtained based on the real-time slope signal of the target vehicle;

[0070] The slope interpolation and the driving gear are input into a second correspondence table to obtain the slope compensation coefficient. The second correspondence table includes at least one correspondence between the slope interpolation, the driving gear, and the slope compensation coefficient.

[0071] The slope interpolation (SlopeIndex) is calculated by looking up the real-time slope signal (AXGradient) of the target vehicle through a table that shows the correspondence between the real-time slope signal and the slope interpolation. The input is the real-time slope signal AXGradient, and the output is the slope interpolation SlopeIndex. The correspondence can be determined according to actual needs. The real-time slope signal AXGradient can be sensed by the vehicle's sensors. Figure 3 This is a schematic diagram of the correspondence table between real-time slope signals and slope interpolation applicable to Embodiment 1 of the present invention, as shown below. Figure 3 As shown, for example, when the real-time slope signal is -10, the corresponding slope interpolation value is 8.

[0072] After obtaining the slope interpolation value, input the slope interpolation value and driving gear into the second correspondence table, and look up the corresponding slope compensation coefficient in the table. The second correspondence table can be calibrated according to actual needs. For example, Figure 4 This is a schematic diagram of a second correspondence table applicable to Embodiment 1 of the present invention, as shown below. Figure 4 As shown, assuming the driving gear is 3 and the slope interpolation value is 8, the slope compensation coefficient is 0.75.

[0073] In this embodiment of the invention, the compensation coefficient includes: a plateau compensation coefficient; correspondingly, determining the compensation coefficient of the target vehicle includes:

[0074] The corresponding atmospheric pressure interpolation is obtained based on the atmospheric pressure coefficient;

[0075] The plateau compensation coefficient is obtained by looking up the air pressure interpolation and the driving gear in a third correspondence table. The third correspondence table includes at least one correspondence between air pressure interpolation, driving gear and slope compensation coefficient.

[0076] The calculation of atmospheric pressure interpolation (AltIndex) is based on the correspondence table between the atmospheric pressure coefficient LatitudeFac and atmospheric pressure interpolation, yielding the corresponding atmospheric pressure interpolation value AltIndex. The atmospheric pressure coefficient LatitudeFac is the ratio of the current atmospheric pressure to the standard atmospheric pressure. The correspondence table takes the atmospheric pressure coefficient LatitudeFac as input and outputs the atmospheric pressure interpolation value AltIndex. This table can be calibrated according to actual needs. The atmospheric pressure coefficient LatitudeFac is generally obtained from actual sensor measurements. Figure 5 This is a schematic diagram of the correspondence between atmospheric pressure coefficient and atmospheric pressure interpolation applicable to Embodiment 1 of the present invention, as shown in the figure. Figure 5 As shown, assuming the atmospheric pressure coefficient LatitudeFac is 0.8, the corresponding atmospheric pressure interpolation AltIndex is 5.

[0077] After obtaining the air pressure interpolation, input the air pressure interpolation and driving gear into the third correspondence table, and look up the corresponding plateau compensation coefficient. The correspondence can be calibrated according to actual needs. Figure 6 This is a schematic diagram of a third correspondence table applicable to Embodiment 1 of the present invention, as shown below. Figure 6 As shown, assuming the air pressure interpolation value is 5, the driving gear is 3, and the corresponding plateau compensation coefficient is 1.

[0078] In addition, when the vehicle is in a flat area, 1 can be used as the high-altitude compensation coefficient, indicating that no high-altitude compensation is required.

[0079] After obtaining the base speed threshold (SPH), gradient compensation coefficient (m), and plateau compensation coefficient (n), the current speed threshold is obtained by multiplying the three by SPH*m*n.

[0080] S130. Control the driving gear according to the current vehicle speed threshold and the current vehicle speed of the target vehicle.

[0081] In this embodiment of the invention, controlling the driving gear based on the current vehicle speed threshold and the current vehicle speed of the target vehicle includes:

[0082] When the current vehicle speed is greater than the current vehicle speed threshold, an upshift operation is performed.

[0083] Specifically, when the current vehicle speed is detected to be greater than the basic vehicle speed threshold SPH*m*n, step S301 is executed to upshift, and the target gear is equal to the current gear + 1; when the current vehicle speed is detected to be less than the basic vehicle speed threshold SPH*m*n, step S302 is executed to maintain the current gear, and the target gear is equal to the current gear.

[0084] This invention provides a shifting strategy for wet dual-clutch automatic transmissions under rapid throttle release conditions. This invention solves the problem of wet dual-clutch automatic transmissions adaptively upshifting under rapid throttle release conditions, i.e., after the FASTOFF function is activated, based on a comprehensive judgment of factors such as the current driving mode, road conditions such as slope and altitude. This invention can more flexibly control the upshift suppression function after throttle release, more accurately upshift according to the driver's intention, and effectively avoid frequent gear shifting.

[0085] Example 2

[0086] Figure 7 This is a schematic diagram of a wet dual-clutch transmission control device provided in Embodiment 3 of the present invention. Figure 7 As shown, the device includes:

[0087] The control condition determination unit 710 is used to determine whether the driving gear of the wet dual-clutch transmission of the target vehicle meets the preset control conditions when the FASTOFF function of the target vehicle is activated.

[0088] The vehicle speed threshold determination unit 720 is used to determine the current vehicle speed threshold of the target vehicle when the driving gear meets the control conditions.

[0089] The driving gear control unit 730 is used to control the driving gear according to the current vehicle speed threshold and the current vehicle speed of the target vehicle.

[0090] Optionally, the control condition is that the driving gear is greater than 2.

[0091] Optionally, the vehicle speed threshold determination unit 720 is used to perform:

[0092] Determine the base vehicle speed threshold and at least one compensation coefficient for the target vehicle;

[0093] The current vehicle speed threshold is determined based on the base vehicle speed threshold and at least one compensation coefficient.

[0094] Optionally, the vehicle speed threshold determination unit 720, when determining the basic vehicle speed threshold of the target vehicle, specifically performs the following:

[0095] Determine the current driving mode of the target vehicle;

[0096] The base speed threshold is obtained by looking up the current driving mode and the driving gear in a first correspondence table, wherein the first correspondence table includes at least one correspondence between driving mode and driving gear and base speed threshold.

[0097] Optionally, the compensation coefficient includes: a slope compensation coefficient; correspondingly, the vehicle speed threshold determination unit 720, when determining the compensation coefficient of the target vehicle, specifically performs:

[0098] The corresponding slope interpolation is obtained based on the real-time slope signal of the target vehicle;

[0099] The slope interpolation and the driving gear are input into a second correspondence table to obtain the slope compensation coefficient. The second correspondence table includes at least one correspondence between the slope interpolation, the driving gear, and the slope compensation coefficient.

[0100] Optionally, the compensation coefficient includes a plateau compensation coefficient; correspondingly, the vehicle speed threshold determination unit 720, when determining the compensation coefficient of the target vehicle, specifically performs the following:

[0101] The corresponding atmospheric pressure interpolation is obtained based on the atmospheric pressure coefficient;

[0102] The plateau compensation coefficient is obtained by looking up the air pressure interpolation and the driving gear in a third correspondence table. The third correspondence table includes at least one correspondence between air pressure interpolation, driving gear and slope compensation coefficient.

[0103] Optionally, the driving gear control unit 730 is used to perform:

[0104] When the current vehicle speed is greater than the current vehicle speed threshold, an upshift operation is performed.

[0105] The wet dual-clutch transmission control device provided in this embodiment of the invention can execute the wet dual-clutch transmission control method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0106] Example 3

[0107] Figure 8 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0108] like Figure 8As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0109] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0110] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as wet dual-clutch transmission control methods.

[0111] In some embodiments, the wet dual-clutch transmission control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the wet dual-clutch transmission control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the wet dual-clutch transmission control method by any other suitable means (e.g., by means of firmware).

[0112] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0113] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0114] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0115] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0116] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0117] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0118] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0119] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A control method for a wet dual-clutch transmission, characterized in that, include: When the FASTOFF function of the target vehicle is activated, determine whether the driving gear of the wet dual-clutch transmission of the target vehicle meets the preset control conditions; wherein, when the FASTOFF function activation flag FASTOFFFlag≠1 is detected, the FASTOFF function is not activated and the gear shifting is performed according to the normal shift table; when the FASTOFF function activation flag FASTOFFFlag=1 is detected, the FASTOFF function is activated. When the driving gear meets the control condition, the current vehicle speed threshold of the target vehicle is determined; wherein, the control condition is that the driving gear is greater than 2. The driving gear is controlled based on the current vehicle speed threshold and the current vehicle speed of the target vehicle; Determining the current vehicle speed threshold of the target vehicle includes: Determine the base vehicle speed threshold and at least one compensation coefficient for the target vehicle; The current vehicle speed threshold is determined based on the base vehicle speed threshold and at least one compensation coefficient. Determining the base speed threshold of the target vehicle includes: Determine the current driving mode of the target vehicle; The base speed threshold is obtained by looking up the current driving mode and the driving gear in a first correspondence table, wherein the first correspondence table includes at least one correspondence between driving mode and driving gear and base speed threshold.

2. The method according to claim 1, characterized in that, The compensation coefficient includes: a slope compensation coefficient; correspondingly, determining the compensation coefficient for the target vehicle includes: The corresponding slope interpolation is obtained based on the real-time slope signal of the target vehicle; The slope interpolation and the driving gear are input into a second correspondence table to obtain the slope compensation coefficient. The second correspondence table includes at least one correspondence between the slope interpolation, the driving gear, and the slope compensation coefficient.

3. The method according to claim 1, characterized in that, The compensation coefficient includes: a plateau compensation coefficient; correspondingly, determining the compensation coefficient for the target vehicle includes: The corresponding air pressure interpolation is obtained based on the atmospheric pressure coefficient; The plateau compensation coefficient is obtained by looking up the air pressure interpolation and the driving gear in a third correspondence table. The third correspondence table includes at least one correspondence between air pressure interpolation, driving gear and slope compensation coefficient.

4. The method according to any one of claims 1-3, characterized in that, The step of controlling the driving gear based on the current vehicle speed threshold and the current vehicle speed of the target vehicle includes: When the current vehicle speed is greater than the current vehicle speed threshold, an upshift operation is performed.

5. A wet dual-clutch transmission control device, characterized in that, include: The control condition determination unit is used to determine whether the driving gear position of the wet dual-clutch transmission of the target vehicle meets the preset control conditions when the FASTOFF function of the target vehicle is activated; wherein, when the FASTOFF function activation flag FASTOFFFlag ≠ 1 is detected, the FASTOFF function is not activated and the gear shifting is performed according to the normal shift table; when the FASTOFF function activation flag FASTOFFFlag = 1 is detected, the FASTOFF function is activated. A vehicle speed threshold determination unit is used to determine the current vehicle speed threshold of the target vehicle when the driving gear meets the control condition; wherein, the control condition is that the driving gear is greater than 2. A driving gear control unit is used to control the driving gear according to the current vehicle speed threshold and the current vehicle speed of the target vehicle; The vehicle speed threshold determination unit is used to perform: Determine the base vehicle speed threshold and at least one compensation coefficient for the target vehicle; The current vehicle speed threshold is determined based on the base vehicle speed threshold and at least one compensation coefficient. The vehicle speed threshold determination unit, when determining the basic vehicle speed threshold of the target vehicle, specifically performs the following: Determine the current driving mode of the target vehicle; The base speed threshold is obtained by looking up the current driving mode and the driving gear in a first correspondence table, wherein the first correspondence table includes at least one correspondence between driving mode and driving gear and base speed threshold.

6. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the wet dual-clutch transmission control method according to any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the wet dual-clutch transmission control method according to any one of claims 1-4.

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