CN112253746B - Double-clutch fault detection method and device and storage medium - Google Patents

Double-clutch fault detection method and device and storage medium Download PDF

Info

Publication number
CN112253746B
CN112253746B CN202011213583.8A CN202011213583A CN112253746B CN 112253746 B CN112253746 B CN 112253746B CN 202011213583 A CN202011213583 A CN 202011213583A CN 112253746 B CN112253746 B CN 112253746B
Authority
CN
China
Prior art keywords
clutch
double
diagnosis result
failure detection
generating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011213583.8A
Other languages
Chinese (zh)
Other versions
CN112253746A (en
Inventor
熊英勇
任翔
郭海保
方志勤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianghuai Automobile Group Corp
Original Assignee
Anhui Jianghuai Automobile Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN202011213583.8A priority Critical patent/CN112253746B/en
Publication of CN112253746A publication Critical patent/CN112253746A/en
Application granted granted Critical
Publication of CN112253746B publication Critical patent/CN112253746B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/022—Power-transmitting couplings or clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/1276—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a friction device, e.g. clutches or brakes
    • F16H2061/128—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a friction device, e.g. clutches or brakes the main clutch

Abstract

The invention discloses a double-clutch fault detection method, which comprises the following steps: receiving a detection instruction, and acquiring an actual meshing point value of the double clutches and corresponding gearbox oil temperature after the double clutches are self-learned; acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a standard characteristic curve of a preset KP-transmission oil temperature and a clutch meshing point; and generating a diagnosis result according to the actual meshing point value and the standard meshing point value. The invention also discloses a double-clutch fault detection device and a storage medium. The invention aims to improve the detection efficiency and accuracy of each clutch in the double clutch.

Description

Double-clutch fault detection method and device and storage medium
Technical Field
The invention relates to the field of transmissions, in particular to a double-clutch fault detection method and device and a storage medium.
Background
Based on the fact that the double clutches have corresponding faults such as shaking and gear shifting rattling in the driving process, the states of internal parts of the Transmission cannot be directly judged through the existing Transmission fault diagnosis strategy, and the working states of the double clutches serving as important parts in a Dual Clutch Transmission (DCT) directly influence the functions and the performances of the Transmission, a more accurate double Clutch fault diagnosis method is urgently needed.
Disclosure of Invention
The invention mainly aims to provide a double-clutch fault detection method, a double-clutch fault detection device and a storage medium, and aims to improve the fault detection efficiency and accuracy of double clutches in DCT.
In order to achieve the above object, the present invention provides a double clutch failure detection method, comprising the steps of:
receiving a detection instruction, and acquiring an actual meshing point value of the double clutches and corresponding gearbox oil temperature after the double clutches are self-learned;
acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a standard characteristic curve of a preset KP-transmission oil temperature and a clutch meshing point;
and generating a diagnosis result according to the actual meshing point value and the standard meshing point value.
Optionally, the step of generating a diagnostic result from the actual mesh point values and the standard mesh point values comprises:
calculating an engagement point absolute difference value of the actual engagement point value and the standard engagement point value;
and generating a diagnosis result according to the absolute difference value of the meshing point and a first preset threshold value.
Optionally, the step of generating a diagnosis result according to the absolute difference value of the engagement point and a first preset threshold includes:
judging whether the absolute difference value of the meshing points is smaller than the first preset threshold value or not;
if the absolute difference value of the meshing points is larger than or equal to the first preset threshold value, generating a diagnosis result of the damage of the double clutches;
and if the absolute difference value of the meshing points is smaller than the first preset threshold value, generating a diagnosis result that the double clutches work normally.
Optionally, the method further comprises:
detecting shifting fork gear engagement information corresponding to each clutch in the double clutches in real time;
if the shifting fork gear engagement information is fault information, determining that the clutch corresponding to the fault information is a clutch to be diagnosed, and acquiring the rotating speed of the transmission input shaft and the rotating speed of the engine corresponding to the clutch to be diagnosed;
generating a diagnosis result according to the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine;
optionally, the step of generating a diagnosis result according to the transmission input shaft rotation speed and the engine rotation speed corresponding to the clutch to be diagnosed comprises:
calculating the absolute difference value of the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine corresponding to the clutch to be diagnosed;
judging whether the absolute difference value of the rotating speeds is smaller than a second preset threshold value or not;
if the absolute difference value of the rotating speeds is smaller than the second preset threshold value, generating a diagnosis result of ablation of the clutch to be diagnosed;
and if the absolute difference value of the rotating speeds is larger than or equal to the second preset threshold value, generating a diagnosis result that the clutch to be diagnosed works normally.
Optionally, the method further comprises:
storing the diagnosis result;
and if the stored diagnosis result comprises a diagnosis result of the damage of the double clutches and/or a diagnosis result of the ablation of the clutch to be diagnosed, sending the diagnosis result to a preset external terminal to prompt technicians to process faults.
Optionally, after the step of receiving the detection command and before the step of acquiring the completion of the dual clutch self-learning, the method includes:
obtaining vehicle operation parameters, and judging whether the vehicle operation parameters accord with a double-clutch self-learning strategy or not;
and if the vehicle operation parameters meet the double-clutch self-learning strategy, carrying out double-clutch self-learning.
The steps of obtaining vehicle operation parameters and judging whether the vehicle operation parameters accord with a double-clutch self-learning strategy comprise:
acquiring oil temperature, current gear information and current speed information of a transmission, judging whether the oil temperature of the transmission is in a preset range, and judging whether the current speed information is in a preset threshold interval corresponding to the current gear information;
if the vehicle operation parameters meet the double-clutch self-learning strategy, the step of performing double-clutch self-learning comprises the following steps:
if the oil temperature of the transmission is within a preset range, and if the current vehicle speed information is within a preset threshold interval corresponding to the current gear information, performing double-clutch self-learning.
In addition, to achieve the above object, the present invention also provides a double clutch failure detecting device, including: the double-clutch failure detection method comprises a memory, a processor and a double-clutch failure detection program which is stored on the memory and can run on the processor, wherein the double-clutch failure detection program realizes the steps of the double-clutch failure detection method when being executed by the processor.
Further, to achieve the above object, the present invention also provides a storage medium comprising: a memory, a processor and a dual clutch failure detection program stored on the memory and executable on the processor, the dual clutch failure detection program when executed by the processor implementing the steps of the dual clutch failure detection method as claimed above.
According to the double-clutch fault detection method provided by the embodiment of the invention, the self-learning function of the double clutches is started by receiving the detection instruction, and the actual meshing point value of the double clutches and the corresponding oil temperature of the transmission are further obtained after the self-learning of the double clutches is completed; acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a standard characteristic curve of a preset KP-transmission oil temperature and a clutch meshing point; and generating a diagnosis result according to the actual meshing point value and the standard meshing point value, so that the double-clutch fault in the DCT can be quickly and accurately diagnosed in the whole vehicle environment.
Drawings
FIG. 1 is a schematic structural diagram of a dual clutch failure detection device for a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a dual clutch failure detection method of the present invention;
fig. 3 is a flowchart illustrating a dual clutch failure detection method according to a second embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows:
the invention provides a solution, which is characterized in that the double clutches in the prior art have corresponding faults such as shaking, gear shifting rattling and the like in the driving process, the states of internal parts of the transmission cannot be directly judged through the existing transmission fault diagnosis strategy, and the working states of the double clutches are directly influenced by the functions and the performances of the transmission as the double clutches are used as important parts in the DCT; acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a standard characteristic curve of a preset KP-transmission oil temperature and a clutch meshing point; and generating a diagnosis result according to the actual meshing point value and the standard meshing point value, so that the double-clutch fault in the DCT can be quickly and accurately diagnosed in the whole vehicle environment.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a double clutch failure detection device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the detecting means may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include an infrared receiving module for receiving a control command triggered by a user through a remote controller, and the optional user interface 1003 may further include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the detection device configuration shown in FIG. 1 does not constitute a limitation of the detection device, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
The specific embodiment of the double clutch failure detection device of the present invention is substantially the same as the following embodiments of the double clutch failure detection method, and is not described herein again.
Referring to fig. 2, a flow chart of a first embodiment of a method for detecting a double clutch failure according to the present invention is schematically illustrated, and the method includes:
and S100, receiving a detection instruction, and acquiring an actual meshing point value of the double clutches and the corresponding oil temperature of the gearbox after the self-learning of the double clutches is completed.
In this embodiment, after the automatic transmission is qualified by the factory bench test, test data, namely a characteristic curve of a clutch KP (kisspeint, half-junction point) (a curve corresponding to a transmission oil temperature and a clutch engagement point) is written into an automatic transmission controller TCU (transmission Control unit) in advance, when the TCU receives a detection instruction of the transmission, the TCU controller for detecting obtains specific operating parameters of the vehicle, where the parameter information includes the transmission oil temperature, current gear information and current vehicle speed information, so as to determine whether the obtained transmission oil temperature is within a range of a preset dual-clutch self-learning requirement according to the obtained parameter information, and determine whether the current gear information and the current vehicle speed information conform to a corresponding preset threshold interval, so that the dual-clutch self-learning is started after the above conditions are met, generally, when the oil temperature of the transmission is detected to be in the range of 40-80 degrees, if the current double-clutch is in D4 gear operation and the current vehicle speed is 40-50km/h, self-learning of the first clutch is performed; if the current double-clutch is in D5 gear operation and the current vehicle speed is 50-60km/h, performing second clutch learning, wherein the first clutch and the second clutch are two sub-clutches in the double clutches; the self-learning of the dual clutches in a dual clutch transmission aims at correcting for deviations and subsequent hardware wear, the hardware deviations are clutch characteristics that exist for each transmission, and deviations will exist after assembly is complete. And after the self-learning of the double clutches is completed, the current gearbox oil, the corresponding pressure value when the engagement is started and the pressure value of the clutches are monitored in real time by acquiring the pressure value when the clutches are initially engagedActual mesh point value PPractice of。
Step S200, acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a preset KP-transmission oil temperature and clutch meshing point standard characteristic curve;
and step S300, generating a diagnosis result according to the actual meshing point value and the standard meshing point value.
In this embodiment, the oil temperature of the transmission when the dual clutch starts to engage, which is obtained in step S100, is used to obtain the standard engagement point value P corresponding to the oil temperature of the transmission in the KP standard characteristic curve according to the preset KP characteristic standard curve, that is, the curve corresponding to the oil temperature of the transmission and the engagement point of the clutchStandard of meritAnd further according to the actual mesh point value PPractice ofAnd the value of the standard meshing point PStandard of meritA corresponding diagnostic result is generated.
Further, the step of generating a diagnostic result based on the actual mesh point value and the standard mesh point value includes:
step S310, calculating an engagement point absolute difference value between the actual engagement point value and the standard engagement point value.
And step S320, generating a diagnosis result according to the absolute difference value of the meshing point and a first preset threshold value.
In this embodiment, the actual mesh point value P is calculatedPractice ofAnd the value of the standard meshing point PStandard of meritObtaining an absolute difference value delta KP of the meshing point according to the difference value, and further realizing the purpose of calculating the absolute difference value delta KP of the meshing point according to the absolute difference value delta KP and a first preset threshold value KPThreshold valueAnd generating a diagnosis result of the double clutch.
Further, the step S320 further includes:
step S321, determining whether the absolute difference value of the meshing point is smaller than the first preset threshold;
step S322, if the absolute difference between the meshing points is greater than or equal to the first preset threshold, generating a diagnosis result of the damage to the double clutches.
In this embodiment, the step S310 of directly determining obtains the absolute difference Δ KP of the engagement point and the first preset threshold KPThreshold valueIf it isΔ KP greater than or equal to KPThreshold valueAnd correspondingly generating a diagnosis result of the double-clutch damage.
And step S323, if the absolute difference value of the meshing points is smaller than the first preset threshold, generating a diagnosis result that the double clutches work normally.
In the present embodiment, based on the determination result in step S321, if Δ KP is smaller than KPThreshold valueAnd correspondingly generating a normal diagnosis result of the double clutches.
In the embodiment, the self-learning function of the double clutches is started by receiving the detection instruction, and after the self-learning of the double clutches is completed, the actual meshing point value of the double clutches and the corresponding oil temperature of the gearbox are further obtained; acquiring a standard meshing point value corresponding to the oil temperature of the gearbox according to a preset KP standard characteristic curve; and generating a diagnosis result according to the difference value between the actual meshing point value and the standard meshing point value and a first preset threshold value, so that the double-clutch fault in the DCT can be quickly and accurately diagnosed in the whole vehicle environment.
Further, referring to fig. 3, a flow chart of a second embodiment of the double clutch failure detection method of the present invention is schematically illustrated, and the method further includes:
s400, detecting shifting fork gear engaging information corresponding to each clutch in the double clutches in real time;
step S410, if the shifting fork gear engaging information is fault information, determining that a clutch corresponding to the fault information is a clutch to be diagnosed, and acquiring the rotating speed of a transmission input shaft and the rotating speed of an engine corresponding to the clutch to be diagnosed;
and step S420, generating a diagnosis result according to the speed of the transmission input shaft corresponding to the clutch to be diagnosed and the speed of the engine.
In this embodiment, the TCU communicates with the ECU (Electronic Control Unit), the ABS/ESP (anti-lock braking system/Electronic stability system for vehicle body) through a CAN bus (Controller Area Network), further realizes the transmission of the signals of the speed changer sensor of the input shaft of the speed changer, the signals of the rotating speed of the engine and the signals of the position sensor of the shifting fork of the speed changer, and the TCU monitors TCU signals 1/3, 5/N, 2/6 and 4/R fork position signals, a speed signal of an input shaft of the transmission and a speed signal of a CAN engine of the whole vehicle, therefore, when the gear engaging fault signal is acquired, according to the shift fork position corresponding to the current fault clutch, and further determining the corresponding clutch in the working fault, and acquiring the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine to generate a diagnosis result.
Further, the step of generating the diagnosis result according to the transmission input shaft rotation speed and the engine rotation speed corresponding to the clutch to be diagnosed comprises the following steps:
and step S421, calculating the absolute difference value of the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine corresponding to the clutch to be diagnosed.
In the present embodiment, the absolute difference Δ Spd between the engine speed and the transmission input shaft rotational speed is calculated.
Step S422, determine whether the absolute difference of the rotation speed is smaller than the second preset threshold.
And step 423, if the absolute difference value of the rotating speeds is smaller than the second preset threshold value, generating a diagnosis result of the clutch ablation to be diagnosed.
In this embodiment, Δ Spd is compared with the second predetermined threshold value SpdThreshold valueIf Δ Spd is smaller than SpdThreshold valueAnd generating a diagnosis result of the clutch to be diagnosed ablation.
In step S424, if the absolute difference of the rotation speeds is greater than or equal to the second preset threshold, a diagnosis result indicating that the clutch to be diagnosed works normally is generated.
In this embodiment, according to the determination result in step S422, if Δ Spd is greater than or equal to SpdThreshold valueAnd generating a diagnosis result that the clutch to be diagnosed works normally.
Further, based on the double clutch includes first clutch and second clutch, through when shifting fork into gear and breaking down, according to the position information that current shifting fork into gear trouble corresponds, and then know the gear that specifically breaks down to general first clutch connects odd number fender 1/3, 5/N gear, and the second clutch connects even number fender 2/6, 4/R fender position, and there is the difference in the corresponding gear of connecting of the different double clutches based on the motorcycle type in actual life. Therefore, in the above embodiment, if the shift fork fault occurs in the gear connected with the first clutch, the rotation speed of the transmission input shaft connected with the first clutch and the rotation speed of the engine are detected and obtained, and then the judgment is made
In the embodiment, shifting fork gear engaging information corresponding to each clutch in the double clutches is detected in real time; if the shifting fork gear engagement information is fault information, determining a clutch to be diagnosed corresponding to the fault information, acquiring the rotating speed of the transmission input shaft and the rotating speed of the engine corresponding to the clutch to be diagnosed, generating a diagnosis result of the clutch to be diagnosed according to the rotating speed of the transmission input shaft and the rotating speed of the engine corresponding to the clutch to be diagnosed and a corresponding preset threshold value, and generating a diagnosis result of the clutch to be diagnosed based on different gear engagement positions, thereby improving the detection accuracy of the double clutch.
Further, storing the diagnosis result; and if the stored diagnosis result comprises a diagnosis result of the damage of the double clutches and/or a diagnosis result of the ablation of each clutch to be diagnosed, sending the diagnosis result to a preset external terminal to prompt technicians to process the fault, so that the aim of accelerating the processing of the DCT fault is fulfilled.
The specific embodiment of the storage medium of the present invention is substantially the same as the embodiments of the double clutch failure detection method, and will not be described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on this understanding, the technical solution of the present invention may be embodied in the form of a software product stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above, including instructions for causing a dual clutch failure detection apparatus to perform the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A method of double clutch failure detection, the method comprising the steps of:
receiving a detection instruction, and acquiring an actual meshing point value of the double clutches and corresponding gearbox oil temperature after the double clutches are self-learned;
acquiring a standard meshing point value corresponding to the gearbox oil temperature according to a standard characteristic curve of a preset KP-transmission oil temperature and a clutch meshing point;
and generating a diagnosis result according to the actual meshing point value and the standard meshing point value.
2. The dual clutch failure detection method as set forth in claim 1 wherein the step of generating diagnostic results based on the actual and standard mesh point values comprises:
calculating an engagement point absolute difference value of the actual engagement point value and the standard engagement point value;
and generating a diagnosis result according to the absolute difference value of the meshing point and a first preset threshold value.
3. The double clutch failure detection method as claimed in claim 2, wherein the step of generating the diagnosis result according to the absolute difference value of the engagement points and a first preset threshold comprises:
judging whether the absolute difference value of the meshing points is smaller than the first preset threshold value or not;
if the absolute difference value of the meshing points is larger than or equal to the first preset threshold value, generating a diagnosis result of the damage of the double clutches;
and if the absolute difference value of the meshing points is smaller than the first preset threshold value, generating a diagnosis result that the double clutches work normally.
4. The double clutch failure detection method as claimed in claim 1, wherein the method further comprises:
detecting shifting fork gear engagement information corresponding to each clutch in the double clutches in real time;
if the shifting fork gear engagement information is fault information, determining that the clutch corresponding to the fault information is a clutch to be diagnosed, and acquiring the rotating speed of the transmission input shaft and the rotating speed of the engine corresponding to the clutch to be diagnosed;
and generating a diagnosis result according to the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine.
5. The double clutch failure detection method as claimed in claim 4, wherein the step of generating the diagnosis result based on the transmission input shaft rotation speed and the engine rotation speed corresponding to the clutch to be diagnosed comprises:
calculating the absolute difference value of the rotating speed of the transmission input shaft corresponding to the clutch to be diagnosed and the rotating speed of the engine corresponding to the clutch to be diagnosed;
judging whether the absolute difference value of the rotating speeds is smaller than a second preset threshold value or not;
if the absolute difference value of the rotating speeds is smaller than a second preset threshold value, generating a diagnosis result of ablation of the clutch to be diagnosed;
and if the absolute difference value of the rotating speeds is larger than or equal to a second preset threshold value, generating a diagnosis result that the clutch to be diagnosed works normally.
6. The double clutch failure detection method as claimed in any one of claims 1 to 5, characterized in that the method further comprises:
storing the diagnosis result;
and if the stored diagnosis result comprises a diagnosis result of the damage of the double clutches and/or a diagnosis result of the ablation of the clutch to be diagnosed, sending the diagnosis result to a preset external terminal to prompt technicians to process faults.
7. The double clutch failure detection method as claimed in any one of claims 1 to 5, wherein the step of acquiring the completion of the double clutch self-learning after the step of receiving the detection command comprises:
obtaining vehicle operation parameters, and judging whether the vehicle operation parameters accord with a double-clutch self-learning strategy or not;
and if the vehicle operation parameters meet the double-clutch self-learning strategy, carrying out double-clutch self-learning.
8. The dual clutch failure detection method as claimed in claim 7 wherein the step of obtaining vehicle operating parameters and determining whether the vehicle operating parameters comply with a dual clutch self learning strategy comprises:
acquiring oil temperature, current gear information and current speed information of a transmission, judging whether the oil temperature of the transmission is in a preset range, and judging whether the current speed information is in a preset threshold interval corresponding to the current gear information;
if the vehicle operation parameters meet the double-clutch self-learning strategy, the step of performing double-clutch self-learning comprises the following steps:
if the oil temperature of the transmission is within a preset range, and if the current vehicle speed information is within a preset threshold interval corresponding to the current gear information, performing double-clutch self-learning.
9. A double clutch failure detection device, characterized by comprising: a memory, a processor and a dual clutch failure detection program stored on the memory and executable on the processor, the dual clutch failure detection program when executed by the processor implementing the steps of the dual clutch failure detection method as claimed in any one of claims 1 to 8.
10. A storage medium, comprising: a memory, a processor and a dual clutch failure detection program stored on the memory and executable on the processor, the dual clutch failure detection program when executed by the processor implementing the steps of the dual clutch failure detection method as claimed in any one of claims 1 to 8.
CN202011213583.8A 2020-11-02 2020-11-02 Double-clutch fault detection method and device and storage medium Active CN112253746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011213583.8A CN112253746B (en) 2020-11-02 2020-11-02 Double-clutch fault detection method and device and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011213583.8A CN112253746B (en) 2020-11-02 2020-11-02 Double-clutch fault detection method and device and storage medium

Publications (2)

Publication Number Publication Date
CN112253746A CN112253746A (en) 2021-01-22
CN112253746B true CN112253746B (en) 2021-07-13

Family

ID=74268776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011213583.8A Active CN112253746B (en) 2020-11-02 2020-11-02 Double-clutch fault detection method and device and storage medium

Country Status (1)

Country Link
CN (1) CN112253746B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113267334A (en) * 2021-07-19 2021-08-17 盛瑞传动股份有限公司 Method and device for judging hydraulic automatic transmission fault, vehicle and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195251A (en) * 2014-11-19 2016-12-07 现代自动车株式会社 The method of diagnosis double-clutch speed changer internal fault
CN106870600A (en) * 2017-03-21 2017-06-20 中国第汽车股份有限公司 The adaptive approach of wet-type double-clutch automatic speed-change device clutch Half engagement point
CN108374889A (en) * 2018-02-26 2018-08-07 安徽江淮汽车集团股份有限公司 Double clutch fault detect and processing method and transmission system
CN108916372A (en) * 2018-06-19 2018-11-30 联合汽车电子有限公司 The method for diagnosing faults of double clutch automatic speed changing case clutch
CN109624964A (en) * 2018-12-17 2019-04-16 安徽江淮汽车集团股份有限公司 A kind of the starting control method and system of wet-type double-clutch automatic speed-change device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8768589B2 (en) * 2010-12-15 2014-07-01 Yamaha Hatsudoki Kabushiki Kaisha Control device for dual clutch transmission and control method for dual clutch transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195251A (en) * 2014-11-19 2016-12-07 现代自动车株式会社 The method of diagnosis double-clutch speed changer internal fault
CN106870600A (en) * 2017-03-21 2017-06-20 中国第汽车股份有限公司 The adaptive approach of wet-type double-clutch automatic speed-change device clutch Half engagement point
CN108374889A (en) * 2018-02-26 2018-08-07 安徽江淮汽车集团股份有限公司 Double clutch fault detect and processing method and transmission system
CN108916372A (en) * 2018-06-19 2018-11-30 联合汽车电子有限公司 The method for diagnosing faults of double clutch automatic speed changing case clutch
CN109624964A (en) * 2018-12-17 2019-04-16 安徽江淮汽车集团股份有限公司 A kind of the starting control method and system of wet-type double-clutch automatic speed-change device

Also Published As

Publication number Publication date
CN112253746A (en) 2021-01-22

Similar Documents

Publication Publication Date Title
CN1307379C (en) Fault diagnostic method for drive shaft speed sensor with automatic transmission
US20160138709A1 (en) Method of diagnosing malfunction in dual clutch transmission
CN108431572B (en) Control unit for a vehicle with a test mode, and method and test bench for carrying out a bench test of a test piece
US8311715B2 (en) Motor vehicle transmission and method for monitoring frictional engagement in same in a preset neutral or parking position
CN112431878B (en) Clutch sliding wear detection method, device, equipment and storage medium
CN112253746B (en) Double-clutch fault detection method and device and storage medium
RU2490532C2 (en) Method and device to determine condition of gear box, and vehicle comprising such device
CN110879147A (en) Transmission testing system, method and storage medium
US20170114889A1 (en) Method for controlling driving of vehicle
KR20120077737A (en) Appratus and method for transmission of dual clutch transmission of vehicle
CN112065983B (en) Method, device and equipment for detecting abnormal fault of clutch pressure and storage medium
CN114738398B (en) Clutch self-learning method, device and equipment for hybrid electric vehicle
KR101888630B1 (en) Method and system at activation of a fault code in a control system, and vehicle comprising the system
JP2006502469A (en) Method for monitoring and fault diagnosis of automotive drivetrain components
US9939062B2 (en) Method of checking abnormality in oil pressure of TCU
CN110230695B (en) Method and device for determining double-clutch power conflict fault
JP6847540B2 (en) Control device for automatic transmission
CN110843762A (en) Wheel side torque control method, device, storage medium and device
KR20160081219A (en) System and method for storing state of vehicle during shifting of transmission in vehicle
EP3144565B1 (en) Method for intelligent quick bed-in of an automatic transmission
CN115247699B (en) Dual clutch transmission fault prediction method and device, vehicle and storage medium
CN104648406B (en) The method and system of diagnosis speed fault
EP4023482A1 (en) Monitoring method and device for determination of gear stick position, vehicle control unit, and vehicle
CN117145961A (en) Diagnosis method, device and equipment for abnormal fluctuation faults of AMT main shaft rotation speed
US20180010686A1 (en) Method of diagnosing malfunction in dual clutch transmission

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant