CN117212447A - Fault diagnosis method and device based on double-clutch transmission - Google Patents

Abstract

The invention discloses a fault diagnosis method and device based on a double-clutch transmission, and relates to the technical field of automobiles, wherein the method comprises the following steps: acquiring an on-shaft gear and an engaged gear of the working clutch; if the gear on the shaft and the meshing gear are determined to be non-neutral gears and the gear on the shaft is different from the meshing gear, determining that an unexpected gear engaging fault exists in the working clutch; and locking the command gear of the working clutch, and sending out an unexpected gear engaging fault prompt. According to the technical scheme, the unexpected gear engaging fault is accurately detected, the vehicle is prevented from executing gear shifting operation under the unexpected gear engaging fault, the vehicle is prevented from being mechanically jammed due to gear shifting, and the running safety of the vehicle and the mechanical safety of a gearbox are ensured.

Description

Fault diagnosis method and device based on double-clutch transmission

Technical Field

The invention relates to the technical field of automobiles, in particular to a fault diagnosis method and device based on a double-clutch transmission.

Background

The dual clutch transmission (Dual Clutch Transmission, DCT) is widely used in the automotive industry because it provides flexibility in manual transmission and comfort in automatic transmission, and also provides uninterrupted power output.

In the conventional technical scheme, for gear failure detection of a clutch, whether gear conflict exists is generally determined by detecting the position of a shifting fork; for example, whether a gear conflict phenomenon exists is judged according to the current position of the shifting fork and the neutral gear limit position.

However, the detection mode is single, the detection coverage area is smaller, the gear fault caused by the damage of the physical structure of the shifting fork can be detected and acquired, the unexpected gear hanging fault can not be detected effectively, meanwhile, the error of the detection mode based on the position of the shifting fork is larger, and the gear fault false detection phenomenon often occurs.

Disclosure of Invention

The invention provides a fault diagnosis method and device based on a dual-clutch transmission, electronic equipment and a storage medium, and aims to solve the problem of detecting unexpected gear engaging faults in the dual-clutch transmission.

According to an aspect of the present invention, there is provided a fault diagnosis method based on a dual clutch transmission, including:

acquiring an on-shaft gear and an engaged gear of the working clutch;

if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear, determining that an unexpected gear engaging fault exists in the working clutch;

and locking the command gear of the working clutch and sending out an unexpected gear engaging fault prompt.

The sending of the unexpected gear shift-in fault prompt further comprises: if the command gear is the same as the meshing gear, determining that an unexpected gear engaging fault exists in the on-shaft gear; and sending out unexpected gear engagement fault prompt according to the working clutch and the gear on the shaft. According to the method, unexpected gear engagement is determined to occur on the clutch shaft through gear comparison among the command gear, the meshing gear and the on-shaft gear, and a specific on-shaft fault gear is obtained, so that a specific functional component name with the fault is marked according to a working clutch and the on-shaft gear and the sent unexpected gear engagement fault prompt, the positioning accuracy of fault diagnosis is improved, and a decision basis is provided for a vehicle power system.

The sending of the unexpected gear shift-in fault prompt further comprises: if the command gear is the same as the on-shaft gear, determining that an unexpected gear engaging fault exists in the engaged gear; and sending out an unexpected gear engaging fault prompt according to the working clutch and the engaged gear. According to the method, by means of gear comparison among the command gear, the engaged gear and the gear on the shaft, unexpected gear engagement is determined to occur on the engaged gear, and a specific engaged fault gear is obtained, so that according to a working clutch and the engaged gear, a sent unexpected gear engagement fault prompt marks the name of a specific functional component with the fault, positioning accuracy of fault diagnosis is improved, and a decision basis is provided for a vehicle power system.

The sending of the unexpected gear shift-in fault prompt further comprises: if the command gear is different from the on-shaft gear and the command gear is different from the engagement gear, determining that an unexpected gear engagement fault exists in the on-shaft gear; and sending out unexpected gear engagement fault prompt according to the working clutch, the on-shaft gear and the engaged gear. By means of gear comparison among the command gear, the engaged gear and the gear on the shaft, the fact that unexpected gear engagement occurs on the clutch shaft is determined, gear selection of the engaged gear is further affected by unexpected gear engagement faults on the clutch shaft, specific functional component names with the faults are marked according to the working clutch and the engaged gear sent out unexpected gear engagement fault prompts, positioning accuracy of fault diagnosis is improved, and accordingly decision bases are provided for a vehicle power system.

After sending out the unexpected gear shift-in fault prompt, the method further comprises the following steps: carrying out neutral gear picking processing on the pre-engaged gear of the idle clutch; and (3) performing neutral gear shifting treatment on the engaged gear and the on-shaft gear of the working clutch. The pre-engaged gear of the idle clutch is firstly subjected to neutral gear picking processing, and then the engaged gear of the working clutch and the gear on the shaft are subjected to neutral gear picking processing, so that the working clutch and the idle clutch are both adjusted to be in a neutral gear state, and the running safety of the vehicle is further ensured.

After the neutral gear shift process is performed on the engaged gear and the on-shaft gear of the working clutch, the method further includes: judging whether the engagement gear of the working clutch is successful in gear disengagement or not; and if the engaged gear of the working clutch is not successfully disengaged, locking the engaged gear, and sending a parking maintenance prompt according to the engaged gear. Therefore, the calling of the current working shifting fork is avoided, and the phenomenon that the calling of the engaged gear is blocked mechanically is prevented.

After sending out the unexpected gear shift-in fault prompt, the method further comprises the following steps: recording a fault association component according to the unexpected gear engaging fault prompt, and storing the fault association component into a persistence storage module; and responding to the acquisition of the fault reading instruction, and displaying the fault association component through the persistent storage module. Therefore, the record and the read of the unexpected gear shift failure are realized, and a data basis is provided for repairing the unexpected gear shift failure.

According to another aspect of the present invention, there is provided a dual clutch transmission-based fault diagnosis apparatus including:

the gear acquisition execution module is used for acquiring an on-shaft gear and an engaged gear of the working clutch; the fault detection execution module is used for determining that unexpected gear engaging faults exist in the working clutch if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear; and the fault prompt sending module is used for locking the command gear of the working clutch and sending out unexpected gear engaging fault prompts.

According to another aspect of the present invention, there is provided an electronic apparatus including:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the dual clutch transmission based fault diagnosis method of any embodiment of the present invention.

According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the dual clutch transmission-based fault diagnosis method according to any one of the embodiments of the present invention when executed.

According to the technical scheme, after the on-shaft gear and the engaged gear of the working clutch are obtained, if the on-shaft gear and the engaged gear are both determined to be non-neutral gears and the on-shaft gear is different from the engaged gear, the unexpected gear engaging fault of the working clutch is determined, and then the command gear of the working clutch is locked, and an unexpected gear engaging fault prompt is sent out, so that accurate detection of the unexpected gear engaging fault is realized, gear shifting operation of a vehicle under the unexpected gear engaging fault is avoided, mechanical jamming fault caused by vehicle gear shifting is prevented, and running safety of the vehicle and mechanical safety of a gearbox are ensured.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a dual clutch transmission-based fault diagnosis method according to a first embodiment of the present invention;

FIG. 2 is a flow chart of another dual clutch transmission based fault diagnosis method provided in accordance with a second embodiment of the present invention;

FIG. 3 is a flow chart of another dual clutch transmission based fault diagnosis method provided in accordance with a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of another fault diagnosis device based on a dual clutch transmission according to a fourth embodiment of the present invention

Fig. 5 is a schematic structural view of an electronic device implementing a failure diagnosis method based on a dual clutch transmission according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention 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 invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention 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 invention 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.

Example 1

Fig. 1 is a flowchart of a dual clutch transmission-based fault diagnosis method according to an embodiment of the present invention, which is applicable to detecting an unexpected gear engaged fault according to an on-shaft gear and an engaged gear of an operating clutch, and the method may be performed by a dual clutch transmission-based fault diagnosis device, which may be implemented in hardware and/or software, and which is configured in a fault diagnosis system configured in an electronic device of a vehicle, typically, in an electronic device such as a vehicle-mounted terminal device. As shown in fig. 1, the method includes:

s101, acquiring an on-shaft gear and an engaged gear of a current working clutch.

The dual clutch transmission is composed of two clutches, namely an odd clutch and an even clutch; the odd clutch is responsible for the engagement of odd gears, e.g., 1, 3, 5, and 7; the even clutch is responsible for the engagement of even gears, e.g., 2, 4, and 6; when the vehicle runs, the clutch shaft of one clutch is connected with the engine, namely the working clutch, namely the clutch in a power transmission state; the clutch shaft of the other clutch is disconnected from the engine, i.e., the idle clutch, i.e., the clutch in the non-power transmission state.

The gear in the engaged state on the working clutch is the engaged gear currently in use, and the gear of the previous gear or the next gear of the engaged gear on the idle clutch is preselected as the expected gear, and the expected gear is also pre-engaged; the expected gear can be determined to be up-shifted or down-shifted according to the depth of the accelerator pedal and the current vehicle speed, so that the expected gear is obtained; the throttle opening degree detection and acquisition of the throttle pedal depth are based on the throttle pedal position, and the throttle opening degree is smaller as the throttle pedal depth is larger.

The gear on the shaft, namely the gear of the clutch shaft, can be obtained according to the rotating speed of the clutch and the rotating speed of the synchronizer, and the rotating speed of the clutch and the rotating speed of the synchronizer are in positive correlation with the gear on the shaft, namely the faster the rotating speed of the clutch is, the faster the rotating speed of the synchronizer is, and the larger the gear of the clutch is; in the embodiment of the invention, the on-shaft gear can be acquired through a vehicle power system, namely, the vehicle power system completes the related calculation of the on-shaft gear, and the fault detection system acquires the calculated on-shaft gear through the vehicle power system, thereby completing the acquisition of the on-shaft gear.

The double-clutch transmission realizes the selection of the engaged gear through a shifting fork in the clutch, and the selection of the engaged gear can be completed by shifting the shifting fork to a designated gear; each shifting fork is responsible for selecting two gears, and is positioned at the middle position if the two gears corresponding to the shifting fork are not used; if one gear corresponding to the shifting fork is used, shifting the shifting fork to the designated gear; the fault detection system can detect the specific positions of the shifting forks through the displacement sensor, so that the position of each shifting fork is determined, and further, the currently used shifting fork and the engaged gear pointed by the shifting fork are determined, and the engaged gear is obtained.

Particularly, the dual clutch transmission in the embodiment of the invention can be a 7-gear clutch, a 6-gear clutch or other gears; taking a 7-gear clutch as an example, the dual clutch transmission in the embodiment of the invention can comprise 4 shifting forks, wherein each of an odd clutch and an even clutch comprises two shifting forks, the two shifting forks in the odd clutch are used for selecting 1 gear, 3 gear, 5 gear and 7 gear, and the two shifting forks in the even clutch are used for selecting 2 gear, 4 gear, 6 gear and R gear; in the embodiment of the invention, the number of gears, the number of shifting forks and the shifting fork distribution mode of the dual clutch transmission are not particularly limited.

S102, if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear, determining that unexpected gear engagement faults exist in the working clutch.

In the starting and stopping process of the vehicle, the working condition that the gear on the shaft or the meshing gear is neutral gear exists, namely the working condition that the gear on the shaft is neutral gear and the meshing gear is not neutral gear exists; the gear on the shaft is a non-neutral gear, and the meshing gear is not a neutral gear; the gear on the shaft is a neutral gear, and the meshing gear is also a neutral gear; all of the above conditions may occur during certain phases of vehicle travel.

When the gear on the shaft and the engaged gear are both non-neutral gears, the vehicle is obviously in a running state, and under a normal running working condition, the clutch shaft of the working clutch and the gear in the engaged state on the clutch should be the same, namely the gear on the shaft is equal to the engaged gear; if the gear number value of the gear on the shaft is different from the gear number value of the engaged gear, the unexpected gear engaging fault of the current working clutch can be determined, namely the working clutch is not engaged according to the expected gear, and the abnormal engaged gear is determined.

And S103, locking the command gear of the working clutch, and sending out an unexpected gear engaging fault prompt.

The command gear is a required gear when the vehicle starts or runs; for a manual transmission vehicle, the manual transmission vehicle can be obtained according to a gear shifting instruction sent by a user through a control lever; more than automatic transmission vehicles, the vehicle transmission calculates and obtains the vehicle according to the running speed and the traffic condition. According to the technical scheme, the unexpected gear engagement fault of the current working clutch is determined, so that the command gear of the working clutch is locked, the vehicle is prevented from executing gear shifting operation under the unexpected gear engagement fault, mechanical jamming fault caused by gear shifting of the vehicle is prevented, and the running safety of the vehicle and the mechanical safety of the gearbox are ensured.

Meanwhile, on the premise that unexpected gear engaging faults are determined to exist, generating unexpected gear engaging fault prompts according to clutch marks (namely odd clutches or even clutches) of the working clutch where the gear faults are located and the on-shaft gears and engaged gears with the gear values not matched; on one hand, the prompt can be sent to a driver through a loudspeaker or a screen in a mode of voice, pictures or words, and the like, and on the other hand, the prompt can be sent to a vehicle power system, so that the vehicle power system can complete vehicle control based on the fault information, and the running safety of a vehicle is ensured.

Optionally, in an embodiment of the present invention, the sending an unexpected gear engaged fault prompt further includes: if the command gear is the same as the meshing gear, determining that an unexpected gear engaging fault exists in the on-shaft gear; according to the working clutch and the gear on the shaft, sending out an unexpected gear engaging fault prompt

Specifically, under the normal driving condition, after the gear shifting operation is completed, the command gear, the on-shaft gear and the meshing gear should be in the same gear; if the commanded gear is the same as the engaged gear, but the commanded gear is different from the on-shaft gear, indicating that an unexpected gear upshift is occurring on the clutch shaft at this time; for example, when the vehicle is in 1 gear and is expected to be in 2 gear, 3 gear is suddenly and unexpectedly engaged in the normal running process of the vehicle, at this time, the odd clutch shaft is determined to be a fault shaft, the command gear and the engaged gear corresponding to the fault shaft are both 1 gear, the controlled shaft is the odd clutch shaft, and the on-shaft gear 3 gear is engaged in an unexpected gear.

According to the method, unexpected gear engagement is determined to occur on the clutch shaft through gear comparison among the command gear, the meshing gear and the on-shaft gear, and a specific on-shaft fault gear is obtained, so that a specific functional component name with the fault is marked according to a working clutch and the on-shaft gear and the sent unexpected gear engagement fault prompt, the positioning accuracy of fault diagnosis is improved, and a decision basis is provided for a vehicle power system.

Optionally, in an embodiment of the present invention, the sending an unexpected gear engaged fault prompt further includes: if the command gear is the same as the on-shaft gear, determining that an unexpected gear engaging fault exists in the engaged gear; and sending out an unexpected gear engaging fault prompt according to the working clutch and the engaged gear.

Specifically, if the commanded gear is the same as the on-shaft gear, but the commanded gear is different from the engaged gear, indicating that an unintended gear upshift is occurring on the engaged gear at this time; for example, when the vehicle is in 3-gear engagement, 5-gear is abnormally engaged, the failure shaft is an odd clutch shaft, the controlled shaft is an even clutch shaft, the corresponding on-shaft gear and command gear are 3-gear, and 5-gear engaged in advance at an earlier timing is an unexpected gear engagement.

According to the method, by means of gear comparison among the command gear, the engaged gear and the gear on the shaft, unexpected gear engagement is determined to occur on the engaged gear, and a specific engaged fault gear is obtained, so that according to a working clutch and the engaged gear, a sent unexpected gear engagement fault prompt marks the name of a specific functional component with the fault, positioning accuracy of fault diagnosis is improved, and a decision basis is provided for a vehicle power system.

Optionally, in an embodiment of the present invention, the sending an unexpected gear engaged fault prompt further includes: if the command gear is different from the on-shaft gear and the command gear is different from the engagement gear, determining that an unexpected gear engagement fault exists in the on-shaft gear; and sending out unexpected gear engagement fault prompt according to the working clutch, the on-shaft gear and the engaged gear.

Specifically, if the commanded gear, and the on-shaft gear and the engaged gear are all different from each other, it is indicated that an unexpected gear shift is occurring on the clutch shaft at this time, and that the gear shift failure on the engaged gear is due to an unexpected gear shift failure occurring on the clutch shaft; by means of gear comparison among the command gear, the engaged gear and the gear on the shaft, the fact that unexpected gear engagement occurs on the clutch shaft is determined, gear selection of the engaged gear is further affected by unexpected gear engagement faults on the clutch shaft, specific functional component names with the faults are marked according to the working clutch and the engaged gear sent out unexpected gear engagement fault prompts, positioning accuracy of fault diagnosis is improved, and accordingly decision bases are provided for a vehicle power system.

According to the technical scheme, after the on-shaft gear and the engaged gear of the working clutch are obtained, if the on-shaft gear and the engaged gear are both determined to be non-neutral gears and the on-shaft gear is different from the engaged gear, the unexpected gear engaging fault of the working clutch is determined, and then the command gear of the working clutch is locked, and an unexpected gear engaging fault prompt is sent out, so that accurate detection of the unexpected gear engaging fault is realized, gear shifting operation of a vehicle under the unexpected gear engaging fault is avoided, mechanical jamming fault caused by vehicle gear shifting is prevented, and running safety of the vehicle and mechanical safety of a gearbox are ensured.

Example two

Fig. 2 is a flowchart of a fault diagnosis method based on a dual clutch transmission according to a second embodiment of the present invention, where in the first embodiment, after an unexpected gear shift-in fault prompt is sent, the neutral shift process of the clutch is continuously executed. As shown in fig. 2, the method includes:

s201, acquiring an on-shaft gear and an engaged gear of the working clutch.

S202, if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear, determining that unexpected gear engaging faults exist in the working clutch.

And S203, locking the command gear of the current working clutch, and sending out an unexpected gear engagement fault prompt.

S204, the pre-engagement gear of the idle clutch is subjected to neutral gear removal processing.

As described in the above technical solution, if it is determined that the working clutch is an odd clutch, the idle clutch is obviously an even clutch; since the idle clutch has completed the pre-selection of the desired gear and the pre-engagement operation of the desired gear while the working clutch is performing the power transmission of the engine, when it is determined that there is an unexpected gear-engaged failure, the desired shift fork corresponding to the desired engaged gear is first adjusted to the neutral position to perform the off-neutral process on the pre-engaged gear, thereby causing the idle clutch to be in the engaged neutral state.

And S205, performing neutral gear shifting processing on the engaged gear and the on-shaft gear of the working clutch.

After the neutral gear removing process of the pre-engaged gear of the idle clutch is completed, the working shifting fork corresponding to the working gear of the working clutch is adjusted to the middle position so as to remove the neutral gear from the engaged gear, so that the working clutch is in an engaged neutral state, and meanwhile, the clutch shaft of the working clutch is subjected to the neutral gear removing process, namely, the clutch shaft is disconnected from the engine, so that the working clutch is in an on-shaft neutral state.

Optionally, in an embodiment of the present invention, after the neutral gear process is performed on the engaged gear of the working clutch and the on-shaft gear, the method further includes: judging whether the engagement gear of the working clutch is successful in gear disengagement or not; and if the engaged gear of the working clutch is not successfully disengaged, locking the engaged gear, and sending a parking maintenance prompt according to the engaged gear. Specifically, when an unexpected gear is in a fault in the vehicle, the unexpected gear is possibly caused by the abnormality of the working shifting fork, then the engaged gear can not be normally disengaged, and in order to ensure driving safety, the engaged gear is locked, namely, the position of the current working shifting fork is kept unchanged, so that the calling of the current working shifting fork is avoided, and the phenomenon of mechanical jamming of the engaged gear is prevented; meanwhile, a parking maintenance prompt is sent to a user so as to guide the user to carry out maintenance in time after decelerating and parking.

According to the technical scheme, when the command gear of the working clutch is locked, and an unexpected gear engaging fault prompt is sent, the pre-engaged gear of the idle clutch is subjected to neutral gear removing processing, and then the engaged gear of the working clutch and the gear on the shaft are subjected to neutral gear removing processing, so that the working clutch and the idle clutch are both adjusted to be in a neutral gear state, and the running safety of a vehicle is further ensured.

Example III

Fig. 3 is a flowchart of a fault diagnosis method based on a dual clutch transmission according to a third embodiment of the present invention, where in the first embodiment, after an unexpected gear engaged fault prompt is sent, storage and reading of a fault-related component are continuously performed. As shown in fig. 3, the method includes:

s301, acquiring an on-shaft gear and an engaged gear of the working clutch.

S302, if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear, determining that unexpected gear engaging faults exist in the working clutch.

And S303, locking the command gear of the working clutch, and sending out an unexpected gear engaging fault prompt.

S304, recording a fault association component according to the unexpected gear engaged fault prompt, and storing the fault association component into a persistence storage module.

According to the technical scheme, according to the gear numerical relation among the command gear, the on-shaft gear and the meshing gear, fault association components under different numerical relations are different, so that according to the on-shaft gear or the meshing gear where a fault is located, related fault association components are recorded; meanwhile, the persistent storage module may be a charged erasable programmable read-only memory (Electrically Erasable Programmable read only memory, EEPROM) to perform persistent storage on the fault associated component.

And S305, responding to the acquisition of the fault reading instruction, and displaying the fault association component through the persistent storage module.

After the vehicle is powered on again, after-sales personnel can read the fault association component in the persistent storage module by means of a diagnostic tool so as to facilitate timely troubleshooting of the vehicle fault.

According to the technical scheme, after the command gear of the working clutch is locked and the unexpected gear engaged fault prompt is sent, the fault association component is recorded according to the unexpected gear engaged fault prompt, the fault association component is stored in the persistence storage module, and meanwhile, when a fault reading instruction is acquired, the fault association component is displayed through the persistence storage module, so that recording and reading of unexpected gear engaged faults are realized, and a data base is provided for repairing unexpected gear engaged faults.

Example IV

Fig. 4 is a block diagram of a fault diagnosis apparatus based on a dual clutch transmission according to a fourth embodiment of the present invention, where the apparatus specifically includes:

a gear acquisition execution module 401 for acquiring an on-shaft gear and an engaged gear of the working clutch;

a fault detection execution module 402, configured to determine that an unexpected gear engaged fault exists in the working clutch if it is determined that the on-shaft gear and the engaged gear are both non-neutral and the on-shaft gear is different from the engaged gear;

the fault prompt sending module 403 is configured to lock the commanded gear of the working clutch, and send out an unexpected gear engaging fault prompt.

According to the technical scheme, after the on-shaft gear and the engaged gear of the working clutch are obtained, if the on-shaft gear and the engaged gear are both determined to be non-neutral gears and the on-shaft gear is different from the engaged gear, the unexpected gear engaging fault of the working clutch is determined, and then the command gear of the working clutch is locked, and an unexpected gear engaging fault prompt is sent out, so that accurate detection of the unexpected gear engaging fault is realized, gear shifting operation of a vehicle under the unexpected gear engaging fault is avoided, mechanical jamming fault caused by vehicle gear shifting is prevented, and running safety of the vehicle and mechanical safety of a gearbox are ensured.

Optionally, the fault indication sending module 403 is specifically configured to determine that an unexpected gear engaged fault exists in the on-shaft gear if the commanded gear is the same as the engaged gear; and sending out unexpected gear engagement fault prompt according to the working clutch and the gear on the shaft.

Optionally, the fault indication sending module 403 is specifically configured to determine that an unexpected gear engaged fault exists in the engaged gear if the commanded gear is the same as the gear on the shaft; and sending out an unexpected gear engaging fault prompt according to the working clutch and the engaged gear.

Optionally, the fault notification sending module 403 is specifically configured to determine that an unexpected gear engaged fault exists in the on-shaft gear if the commanded gear is different from the on-shaft gear and the commanded gear is different from the engaged gear; and sending out unexpected gear engagement fault prompt according to the working clutch, the on-shaft gear and the engaged gear.

Optionally, the fault diagnosis device based on the dual clutch transmission further comprises:

the neutral gear removing execution module is used for removing neutral gear from the pre-engaged gear of the idle clutch; and (3) performing neutral gear shifting treatment on the engaged gear and the on-shaft gear of the working clutch.

Optionally, the off-hook executing module is further configured to determine whether the engaged gear of the working clutch is off-hook successfully; and if the engaged gear of the working clutch is not successfully disengaged, locking the engaged gear, and sending a parking maintenance prompt according to the engaged gear.

Optionally, the fault diagnosis device based on the dual clutch transmission further comprises:

the storage and reading module is used for logging in a fault prompt record fault association component according to the unexpected gear, and storing the fault association component into the persistence storage module; and responding to the acquisition of the fault reading instruction, and displaying the fault association component through the persistent storage module.

The device can execute the fault diagnosis method based on the double-clutch transmission provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. Technical details not described in detail in this embodiment may be referred to the fault diagnosis method based on the dual clutch transmission provided in any embodiment of the present invention.

Example five

Fig. 5 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, 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 meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having 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 specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as a fault diagnosis method based on a dual clutch transmission.

In some embodiments, the dual clutch transmission-based fault diagnosis method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and/or installed onto the heterogeneous hardware accelerator via the ROM and/or the communication unit. When the computer program is loaded into RAM and executed by the processor, one or more steps of the dual clutch transmission based fault diagnosis method described above may be performed. Alternatively, in other embodiments, the processor may be configured to perform the dual clutch transmission based fault diagnosis method in any other suitable manner (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out 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, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on 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.

To provide for interaction with a user, the systems and techniques described here can be implemented on a heterogeneous hardware accelerator having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or a trackball) through which a user can provide input to the heterogeneous hardware accelerator. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (10)

1. A fault diagnosis method based on a dual clutch transmission, characterized by comprising:

acquiring an on-shaft gear and an engaged gear of the working clutch;

if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear, determining that an unexpected gear engaging fault exists in the working clutch;

and locking the command gear of the working clutch and sending out an unexpected gear engaging fault prompt.

2. The method of claim 1, wherein the issuing of the unexpected gear engaged fault cue further comprises:

if the command gear is the same as the meshing gear, determining that an unexpected gear engaging fault exists in the on-shaft gear;

and sending out unexpected gear engagement fault prompt according to the working clutch and the gear on the shaft.

3. The method of claim 1, wherein the issuing of the unexpected gear engaged fault cue further comprises:

if the command gear is the same as the on-shaft gear, determining that an unexpected gear engaging fault exists in the engaged gear;

and sending out an unexpected gear engaging fault prompt according to the working clutch and the engaged gear.

4. The method of claim 1, wherein the issuing of the unexpected gear engaged fault cue further comprises:

if the command gear is different from the on-shaft gear and the command gear is different from the engagement gear, determining that an unexpected gear engagement fault exists in the on-shaft gear;

and sending out unexpected gear engagement fault prompt according to the working clutch, the on-shaft gear and the engaged gear.

5. The method according to any one of claims 1-4, further comprising, after issuing the unexpected gear-engaged fault indication:

carrying out neutral gear picking processing on the pre-engaged gear of the idle clutch;

and (3) performing neutral gear shifting treatment on the engaged gear and the on-shaft gear of the working clutch.

6. The method of claim 5, further comprising, after the off-neutral treatment of the engaged gear and the on-shaft gear of the working clutch:

judging whether the engagement gear of the working clutch is successful in gear disengagement or not;

and if the engaged gear of the working clutch is not successfully disengaged, locking the engaged gear, and sending a parking maintenance prompt according to the engaged gear.

7. The method according to any one of claims 1-4, further comprising, after issuing the unexpected gear-engaged fault indication:

recording a fault association component according to the unexpected gear engaging fault prompt, and storing the fault association component into a persistence storage module;

and responding to the acquisition of the fault reading instruction, and displaying the fault association component through the persistent storage module.

8. A dual clutch transmission-based fault diagnosis apparatus, comprising:

the gear acquisition execution module is used for acquiring an on-shaft gear and an engaged gear of the working clutch;

the fault detection execution module is used for determining that unexpected gear engaging faults exist in the working clutch if the on-shaft gear and the meshing gear are determined to be non-neutral gears and the on-shaft gear is different from the meshing gear;

and the fault prompt sending module is used for locking the command gear of the working clutch and sending out unexpected gear engaging fault prompts.

9. An electronic device, the electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the dual clutch transmission-based fault diagnosis method of any one of claims 1-7.

10. A computer readable storage medium storing computer instructions for causing a processor to implement the dual clutch transmission based fault diagnosis method of any one of claims 1-7 when executed.