CN114112402B - Fault identification method and device for vehicle transmission and vehicle - Google Patents
Fault identification method and device for vehicle transmission and vehicle Download PDFInfo
- Publication number
- CN114112402B CN114112402B CN202111423606.2A CN202111423606A CN114112402B CN 114112402 B CN114112402 B CN 114112402B CN 202111423606 A CN202111423606 A CN 202111423606A CN 114112402 B CN114112402 B CN 114112402B
- Authority
- CN
- China
- Prior art keywords
- tcu
- fault
- data
- transmission
- related data
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Transmission Device (AREA)
Abstract
本发明涉及一种车辆变速器的故障识别方法、装置及车辆，变速器集成设置有自动变速箱控制单元TCU，方法包括：检测到变速器发生故障时，采集故障发生时刻的TCU数据；获取距离故障发生时刻之前第一预设时长的第一TCU相关数据的同时，获取距离故障发生时刻之后第二预设时长的第二TCU相关数据；利用TCU数据、第一TCU相关数据与第二TCU相关数据对TCU进行故障重现测试，并由故障重现数据识别TCU的故障原因和/或生成TCU的故障报告。该方法解决了在故障排查和分析时，需要拆解变速器才能进一步检测和确认真因，大幅度增加了故障排查的成本的问题，有利于快速分析偶发性故障，减少故障复现、线下拆解检测等问题分析过程。
The present invention relates to a fault identification method, device and vehicle of a vehicle transmission, wherein the transmission is integrated with an automatic transmission control unit TCU, and the method comprises: when a transmission fault is detected, collecting TCU data at the time of the fault occurrence; acquiring first TCU related data of a first preset time before the time of the fault occurrence, and acquiring second TCU related data of a second preset time after the time of the fault occurrence; performing a fault reproduction test on the TCU using the TCU data, the first TCU related data and the second TCU related data, and identifying the fault cause of the TCU and/or generating a fault report of the TCU by the fault reproduction data. The method solves the problem that during fault troubleshooting and analysis, the transmission needs to be disassembled to further detect and confirm the true cause, which greatly increases the cost of fault troubleshooting, and is conducive to the rapid analysis of occasional faults, and reduces the problem analysis process of fault reproduction, offline disassembly and detection.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method and an apparatus for identifying a failure of a vehicle transmission, and a vehicle.
Background
The 9AT automatic gearbox consists of a hydraulic torque converter, a planetary gear set and a hydraulic control system, and the speed and torque can be changed by means of hydraulic transmission and gear combination. The electric control system realizes 9 forward gears and 1 reverse gear by controlling 4 groups of clutches and 2 brakes.
In the related art, a 9AT automatic transmission generally adopts a built-in integrated TCU (Transmission Control Unit, automatic gearbox control unit), an electric control system completes the operation of the whole transmission actuating mechanism through four-way output driving, 11-way hydraulic system control electromagnetic valves and 6 sensors, the TCU, the hydraulic control valves and the sensors are integrated, and are distributed in the transmission, so that simplification is realized from the integral structure, and the weight and the volume of the transmission are reduced.
However, because the transmission is of a built-in integrated structure, the electric control system cannot be directly detected, and the transmission is often required to be disassembled for further detection and identification during the later fault investigation and analysis, so that the fault investigation cost is greatly increased, and the problem needs to be solved.
Disclosure of Invention
In view of the above, the present invention aims to provide a fault identification method for a vehicle transmission, which solves the problems that in the related art, an electric control system cannot be directly detected, and in the later fault detection and analysis, the transmission is often required to be disassembled to further detect and identify the cause, so that the cost of fault detection is greatly increased, and the fault identification method is favorable for rapidly analyzing accidental faults, and reduces the problem analysis processes of fault recurrence, offline disassembly detection, and the like.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
A fault recognition method of a vehicle transmission, the transmission being integrally provided with an automatic transmission control unit TCU, wherein the method comprises the steps of:
when a transmission is detected to be faulty, TCU data at the moment of fault occurrence are collected;
Acquiring first TCU related data with a first preset time length before the fault occurrence time and acquiring second TCU related data with a second preset time length after the fault occurrence time;
and performing fault online test on the TCU by using the TCU data, the first TCU related data and the second TCU related data, and identifying the fault reason of the TCU and/or generating a fault report of the TCU by using fault reproduction data.
Further, before detecting that the transmission fails, it includes:
receiving a fault trigger sent by the transmission triggering fault condition;
judging whether the fault triggering identifier meets a TCU fault condition or not;
if the TCU fault condition is satisfied, a determination is made that the transmission is faulty.
Further, the collecting TCU data at the occurrence time of the fault includes:
Acquiring the TCU data from a fault data cache module;
And storing the data identifier of the TCU data to be frozen into a rotation buffer area according to the preset continuous frozen data length.
Further, the acquiring, while acquiring the first TCU related data of a first preset duration before the fault occurrence time, the second TCU related data of a second preset duration after the fault occurrence time includes:
Reading the TCU data to be frozen by utilizing a UDS service;
And analyzing the frozen frame corresponding to the TCU data to be frozen to obtain the first TCU related data and the second TCU related data.
Further, the analyzing the first TCU related data and the second TCU related data based on the frozen frame corresponding to the TCU data to be frozen includes:
converting hexadecimal TCU data into a physical value or an ASCII code value;
and acquiring transmission parameters in the first time period and transmission processing data in the second preset time period according to the physical value.
Compared with the prior art, the fault identification method of the vehicle transmission has the following advantages:
The fault identification method of the vehicle transmission can acquire TCU data at the fault occurrence time when the transmission is detected to be faulty, acquire first TCU related data with a first preset time length before the fault occurrence time, acquire second TCU related data with a second preset time length after the fault occurrence time, perform fault reappearance on-line test on the TCU by utilizing the TCU data, the first TCU related data and the second TCU related data, and identify the fault reason of the TCU and/or generate a fault report of the TCU by the fault reappearance data. Therefore, the problem that the electric control system cannot be directly detected in the related technology, and the transmission is required to be disassembled to further detect and confirm the cause when the later failure is detected and analyzed is solved, so that the cost of failure detection is greatly increased, the quick analysis of accidental failures is facilitated, and the problem analysis processes of failure recurrence, offline disassembly detection and the like are reduced.
Another object of the present invention is to provide a fault recognition device for a vehicle transmission, which solves the problems that in the related art, the electric control system cannot be directly detected, and in the later fault detection and analysis, the transmission is often required to be disassembled to further detect and confirm the cause, so that the cost of fault detection is greatly increased, the fault recognition device is favorable for rapidly analyzing accidental faults, and the problems of fault recurrence, offline disassembly detection and the like are reduced
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a failure recognition device of a vehicle transmission, the transmission being integrally provided with an automatic transmission control unit TCU, wherein the device comprises:
The acquisition module is used for acquiring TCU data at the moment of failure when the transmission fails;
the acquisition module is used for acquiring first TCU related data with a first preset time length before the fault occurrence time and acquiring second TCU related data with a second preset time length after the fault occurrence time;
And the identification module is used for carrying out fault online test on the TCU by utilizing the TCU data, the first TCU related data and the second TCU related data, and identifying the fault reason of the TCU and/or generating a fault report of the TCU by fault reproduction data.
Further, before detecting that the transmission fails, the acquisition module is specifically configured to:
receiving a fault trigger sent by the transmission triggering fault condition;
judging whether the fault triggering identifier meets a TCU fault condition or not;
if the TCU fault condition is satisfied, a determination is made that the transmission is faulty.
Further, the acquisition module is specifically configured to:
Acquiring the TCU data from a fault data cache module;
And storing the data identifier of the TCU data to be frozen into a rotation buffer area according to the preset continuous frozen data length.
Further, the obtaining module is specifically configured to:
Reading the TCU data to be frozen by utilizing a UDS service;
And analyzing the frozen frame corresponding to the TCU data to be frozen to obtain the first TCU related data and the second TCU related data.
Further, the acquisition module is further configured to:
converting hexadecimal TCU data into physical values or ASCII codes;
and acquiring transmission parameters in the first time period and transmission processing data in the second preset time period according to the physical value.
The fault recognition device of the vehicle transmission has the same advantages as the fault recognition method of the vehicle transmission compared with the prior art, and is not described in detail herein.
Another object of the present invention is to provide a vehicle, which solves the problem that in the related art, the electric control system cannot be directly detected, and in the later period of fault detection and analysis, the transmission is often required to be disassembled to further detect and confirm the cause, so that the cost of fault detection is greatly increased, which is beneficial to rapid analysis of accidental faults, and reduction of the problem analysis processes of fault recurrence, off-line disassembly detection, etc.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
A vehicle is provided with a failure recognition device of a vehicle transmission as described in the above embodiment.
The fault recognition device of the vehicle and the vehicle transmission has the same advantages compared with the prior art, and is not described in detail herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a flow chart of a method of fault identification for a vehicle transmission according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fault handling process of a fault identification system of a vehicle transmission according to one embodiment of the present invention;
FIG. 3 is a diagram illustrating a carousel buffer according to one embodiment of the present invention;
FIG. 4 is a diagram illustrating conversion of fault data to physical values according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of reading failed frozen frame data according to an embodiment of the invention;
FIG. 6 is a diagram illustrating the conversion of data into physical values according to one embodiment of the invention;
FIG. 7 is a flow chart of fault cache data freezing according to one embodiment of the present invention;
Fig. 8 is a block diagram schematically illustrating a failure recognition apparatus of a vehicular transmission according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Fig. 1 is a flowchart of a failure recognition method of a vehicle transmission according to an embodiment of the present invention. In this embodiment, the transmission is integrally provided with an automatic transmission control unit TCU.
As shown in fig. 1, a fault recognition method of a vehicle transmission according to an embodiment of the present invention includes the steps of:
step S101, when a transmission failure is detected, TCU data at the time of the failure is collected.
In this embodiment, as shown in fig. 2, the fault recognition system of the vehicle transmission related to the fault recognition method of the vehicle transmission according to the embodiment of the present invention may include a fault diagnosis module, a fault management module, a fault data cache module, a fault data freeze storage module, a fault freeze frame data module, and a freeze frame data analysis module. The embodiment of the invention can periodically (calibratably) detect whether the transmission has faults through the fault diagnosis module, and collect TCU data at the moment of fault occurrence when the transmission is detected to have faults.
As one possible implementation, in some embodiments, collecting TCU data at the time of failure includes obtaining TCU data from a failure data cache module, and storing a data identifier of the TCU data to be frozen in a carousel cache with a preset continuous frozen data length.
The preset continuous freezing data length may be a data length preset by a user, may be a data length obtained through limited experiments, or may be a data length obtained through limited computer simulation, and is not particularly limited herein.
It should be understood that, the fault data buffer module stores data related to faults periodically (calibratable), so that when TCU data at the moment of occurrence of a fault is collected, the embodiment of the present invention may acquire TCU data from the fault data buffer module, and store the fault data in a round robin manner according to the DID (DATA IDENTIFIERS, data identifier) of the TCU data to be frozen and a preset continuous freezing data length.
As shown in fig. 3, the round robin buffer may be configured such that the DID number 0 is a data identifier of the first fault cache data, the DID number 1 is a data identifier of the second fault cache data, the DID number 2 is a data identifier of the third fault cache data, & gt, the DID number Dmax-1 is a data identifier of the Dmax-th fault cache data, dmax is a maximum value of the data identifiers of the fault cache data, for example, the first fault cache data identifier DID number 0 is 1234, the second fault cache data identifier DID number 1 is 1243, the third fault cache data identifier DID number 3 is 1324, & gt, and the twentieth fault cache data identifier DID number 19 is 4132 and kmax is a preset continuous frozen data length.
Further, in some embodiments, prior to detecting a transmission failure, the method includes receiving a failure trigger sent by a transmission triggering failure condition, determining whether the failure trigger satisfies a TCU failure condition, and if so, determining that the transmission is failed.
It should be understood that, in the embodiment of the present invention, whether the transmission is faulty or not may be detected periodically (calibratable) by the fault diagnosis module, when the transmission triggers a fault condition, a fault trigger identifier may be sent, after the fault management module receives the fault trigger identifier, the fault management module may enter a fault processing stage, and after calibrated debouncetime (jitter elimination time), if the trigger fault condition is still satisfied, it is determined that the fault trigger identifier satisfies the TCU fault condition, and it is determined that the transmission is faulty. Therefore, by setting whether the fault trigger identifier meets the TCU fault condition, the accuracy of judging the fault of the transmission is effectively improved, and misjudgment is avoided.
It should be noted that, the fault cache data may first calibrate the corresponding cache data DID according to different faults, and set a sampling period of each signal according to the accuracy and the characteristics of the data signal, as shown in fig. 4, for example, the data signal accuracy and the characteristics are 0, the calibratable sampling period is 20ms, the data signal accuracy and the characteristics are 3, the calibratable sampling period is 100ms, the data signal accuracy and the characteristics are 6, the calibratable sampling period is 40ms, and the like, which is not limited specifically herein, and the fault data updates the cache data in real time in a cyclic rotation manner according to the calibration sampling period. When the fault occurs, triggering the flag bit to freeze the data according to the data to be frozen, and defining the data freezing moment by the flag bit triggered by the data to be frozen through the calibration value.
Step S102, acquiring first TCU related data of a first preset duration before the occurrence time of the distance fault, and acquiring second TCU related data of a second preset duration after the occurrence time of the distance fault.
Further, in some embodiments, acquiring first TCU related data of a first preset duration before a fault occurrence time and acquiring second TCU related data of a second preset duration after the fault occurrence time simultaneously comprises reading TCU data to be frozen by utilizing a UDS service, and analyzing and obtaining the first TCU related data and the second TCU related data based on a frozen frame corresponding to the TCU data to be frozen.
Further, in some embodiments, the first TCU related data and the second TCU related data are obtained based on the analysis of the frozen frame corresponding to the TCU data to be frozen, wherein the analysis comprises the steps of converting hexadecimal TCU data into a physical value or an ASCII code value, and acquiring transmission parameters in a first duration and transmission processing data in a second preset duration according to the physical value.
The first preset duration and the second preset duration may be durations preset by a user, may be durations obtained through limited experiments, or may be durations obtained through limited computer simulation, and are not limited specifically herein.
It should be appreciated that the fault data freezing storage module may be configured to store fault cache data, and when a new fault is detected in the fault memory, store the fault cache data in the EEP (ELECTRICALLY ERASABLE PROGRAMMABLE, live-line erasable programmable) memory, that is, the fault frozen frame data module, and use the diagnostic device to read the fault frozen frame data (that is, TCU data to be frozen) through the UDS service (Unified Diagnostic Services, unified diagnostic service), where the reading result may be as shown in fig. 5.
Further, as shown in fig. 6, in the embodiment of the present invention, hexadecimal TCU data is converted into a physical value or an ASCII code value through data analysis, so that an actual value of a related parameter of 2s (i.e., a first preset duration) before a fault occurs and post-fault processing after the fault occurs can be obtained, which is equivalent to data collected by fault online detection, and is convenient, rapid and accurate for analyzing the true cause of the problem.
Step S103, performing fault reproduction test on the TCU by using the TCU data, the first TCU related data and the second TCU related data, and identifying the fault reason of the TCU and/or generating a fault report of the TCU by using the fault reproduction data.
That is, the embodiment of the invention can record and store relevant diagnostic data (i.e. TCU data) at the moment of occurrence of a fault, adopt a mode of continuously collecting relevant data (i.e. first TCU relevant data and second TCU relevant data) before and after occurrence of the fault, realize a fault reproduction test function, display the cause, state, electrical element characteristics and diagnostic logic of fault triggering in a linear data mode, truly and effectively analyze the problem, lock the cause of the fault, save the problem investigation cost and provide quick and efficient after-sales service.
Therefore, through analyzing continuous frame data before and after the occurrence of faults, the method is equivalent to online fault reproduction data, and the fault triggered passing and state change is displayed intuitively and accurately
In order to enable those skilled in the art to further understand the fault identification method of the vehicle transmission according to the embodiment of the present invention, the fault cache data freezing process is described in detail below with reference to fig. 2 and 7.
As shown in fig. 7, the fault cache data is frozen, comprising the steps of:
S701, start.
S702, judging whether the TCU power-on diagnosis condition is met, if yes, executing step S704, otherwise, executing step S703.
The TCU is powered on to ensure a power supply range, and the diagnosis condition may be understood as a fault start diagnosis condition, and the fault triggering condition is a corresponding condition to be set when different faults are diagnosed.
While executing step S704, the round robin buffer of the fault data buffer module periodically buffers the calibrated frozen frame data, and jumps to execute step S710.
S703, wait for the diagnosis condition to be satisfied, and jump to step S701.
And S704, the fault diagnosis module periodically diagnoses the fault state, and when the fault triggering condition is met, the step S705 is executed.
S705, receiving the fault trigger, fault managing module fault confirmation, judging whether the fault trigger meets the TCU fault condition, if yes, executing step S707, otherwise, executing step S706.
S706, the failure is not satisfied, and the step S704 is executed.
S707, EEP fault is stored in the memory
S708, the fault data freezing storage module performs fault data freezing storage.
Before the fault data freezing storage module performs fault data freezing storage, the standard quantity of the freezing time of the cache data needs to be met, the freezing flag bit of the cache data is established, and then the fault data is acquired from the frozen frame data periodically cached and calibrated in the round-robin cache area of the fault data caching module, and is stored
S709, end.
According to the fault identification method for the vehicle transmission, when the transmission is detected to be faulty, the TCU data at the fault occurrence time can be acquired, the first TCU related data with the first preset time length before the fault occurrence time is acquired, the second TCU related data with the second preset time length after the fault occurrence time is acquired, the TCU data, the first TCU related data and the second TCU related data are utilized to conduct fault reproduction test on the TCU, and fault reasons of the TCU are identified and/or fault reports of the TCU are generated through the fault reproduction data. Therefore, the problem that the electric control system cannot be directly detected in the related technology, and the transmission is required to be disassembled to further detect and confirm the cause when the later failure is detected and analyzed is solved, so that the cost of failure detection is greatly increased, the quick analysis of accidental failures is facilitated, and the problem analysis processes of failure recurrence, offline disassembly detection and the like are reduced.
Further, as shown in fig. 8, the embodiment of the invention also discloses a fault recognition device 10 of a vehicle transmission, the transmission is integrally provided with an automatic transmission control unit TCU, and the fault recognition device 10 of the vehicle transmission comprises an acquisition module 100, an acquisition module 200 and a recognition module 300.
The acquisition module 100 is used for acquiring TCU data at the moment of occurrence of faults when the fault of the transmission is detected;
The acquiring module 200 is configured to acquire first TCU related data of a first preset duration before a distance fault occurrence time, and acquire second TCU related data of a second preset duration after the distance fault occurrence time;
The identifying module 300 is configured to perform fault online testing on the TCU by using the TCU data, the first TCU related data, and the second TCU related data, and identify a cause of the fault of the TCU and/or generate a fault report of the TCU according to the fault recurrence data.
Further, the acquisition module 100 is specifically configured to, prior to detecting a transmission failure:
receiving a fault trigger sent by a transmission trigger fault condition;
Judging whether the fault triggering identifier meets the TCU fault condition or not;
if the TCU fault condition is met, a transmission failure is determined.
Further, the acquisition module 100 is specifically configured to:
obtaining TCU data from a fault data cache module;
And storing the data identifier of the TCU data to be frozen into the rotation buffer area according to the preset continuous frozen data length.
Further, the obtaining module 200 is specifically configured to:
Reading TCU data to be frozen by utilizing a UDS service;
And analyzing the frozen frame corresponding to the TCU data to be frozen to obtain first TCU related data and second TCU related data.
Further, the obtaining module 200 is further configured to:
Converting hexadecimal TCU data into physical values;
and acquiring transmission parameters in a first time period and transmission processing data in a second preset time period according to the physical value.
It should be noted that, the specific implementation manner of the fault identification device of the vehicle transmission in the embodiment of the present invention is similar to the specific implementation manner of the fault identification method of the vehicle transmission, and in order to reduce redundancy, a description is omitted here.
According to the fault identification device of the vehicle transmission, when the transmission is detected to be faulty, the TCU data at the fault occurrence time can be acquired, the first TCU related data with the first preset time length before the fault occurrence time is acquired, the second TCU related data with the second preset time length after the fault occurrence time is acquired, the TCU data, the first TCU related data and the second TCU related data are utilized to conduct fault reproduction test on the TCU, and fault reasons of the TCU are identified and/or fault reports of the TCU are generated through the fault reproduction data. Therefore, the problem that the electric control system cannot be directly detected in the related technology, and the transmission is required to be disassembled to further detect and confirm the cause when the later failure is detected and analyzed is solved, so that the cost of failure detection is greatly increased, the quick analysis of accidental failures is facilitated, and the problem analysis processes of failure recurrence, offline disassembly detection and the like are reduced.
Further, an embodiment of the invention discloses a vehicle provided with the failure recognition device of the vehicle transmission of the above embodiment. The vehicle solves the problems that the electric control system cannot be directly detected in the related technology, and the transmission is required to be disassembled to further detect and confirm the cause when the later-stage fault is detected and analyzed, so that the cost of fault detection is greatly increased, the rapid analysis of accidental faults is facilitated, and the problem analysis processes of fault recurrence, off-line disassembly detection and the like are reduced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A failure recognition method of a vehicle transmission, characterized in that the transmission is integrally provided with an automatic transmission control unit TCU, wherein the method comprises the steps of:
when a transmission is detected to be faulty, TCU data at the moment of fault occurrence are collected;
Acquiring first TCU related data with a first preset time length before the fault occurrence time and acquiring second TCU related data with a second preset time length after the fault occurrence time;
Performing fault online test on the TCU by using the TCU data, the first TCU related data and the second TCU related data, and identifying a fault reason of the TCU and/or generating a fault report of the TCU by fault reproduction data;
The TCU data of the fault occurrence moment is collected, which comprises the following steps:
Acquiring the TCU data from a fault data cache module;
storing the data identifier of the TCU data to be frozen into a rotation buffer area according to the preset continuous frozen data length;
The fault cache data firstly demarcates corresponding cache data DID according to different faults, sets a sampling period of each signal according to the precision and the characteristics of the data signals, and updates the cache data in real time in a cyclic rotation mode according to the demarcated sampling period;
The obtaining, while obtaining the first TCU related data having a first preset duration before the fault occurrence time, the second TCU related data having a second preset duration after the fault occurrence time, includes:
Reading the TCU data to be frozen by utilizing a UDS service;
analyzing the frozen frame corresponding to the TCU data to be frozen to obtain the first TCU related data and the second TCU related data;
And performing fault reproduction test on the TCU by using the TCU data, the first TCU related data and the second TCU related data, and identifying the fault reason of the TCU and/or generating a fault report of the TCU by using the fault reproduction data.
2. The method of claim 1, comprising, prior to detecting a failure of the transmission:
receiving a fault trigger sent by the transmission triggering fault condition;
judging whether the fault triggering identifier meets a TCU fault condition or not;
if the TCU fault condition is satisfied, a determination is made that the transmission is faulty.
3. The method of claim 1, wherein the parsing the first TCU-related data and the second TCU-related data based on the frozen frame corresponding to the TCU data to be frozen comprises:
converting hexadecimal TCU data into a physical value or an ASCII code value;
and acquiring transmission parameters in the first preset time period and transmission processing data in the second preset time period according to the physical value.
4. A failure recognition device of a vehicle transmission, characterized in that the failure recognition device of a vehicle transmission is adapted to perform a failure recognition method of a vehicle transmission according to claim 1, the transmission being integrally provided with an automatic transmission control unit TCU, wherein the device comprises:
The acquisition module is used for acquiring TCU data at the moment of failure when the transmission fails;
the acquisition module is used for acquiring first TCU related data with a first preset time length before the fault occurrence time and acquiring second TCU related data with a second preset time length after the fault occurrence time;
And the identification module is used for carrying out fault online test on the TCU by utilizing the TCU data, the first TCU related data and the second TCU related data, and identifying the fault reason of the TCU and/or generating a fault report of the TCU by fault reproduction data.
5. The device according to claim 4, wherein the acquisition module, before detecting a failure of the transmission, is in particular configured to:
receiving a fault trigger sent by the transmission triggering fault condition;
judging whether the fault triggering identifier meets a TCU fault condition or not;
if the TCU fault condition is satisfied, a determination is made that the transmission is faulty.
6. The device according to claim 4, wherein the acquisition module is specifically configured to:
Acquiring the TCU data from a fault data cache module;
And storing the data identifier of the TCU data to be frozen into a rotation buffer area according to the preset continuous frozen data length.
7. The apparatus of claim 4, wherein the obtaining module is specifically configured to:
Reading the TCU data to be frozen by utilizing a UDS service;
And analyzing the frozen frame corresponding to the TCU data to be frozen to obtain the first TCU related data and the second TCU related data.
8. A vehicle comprising a failure recognition apparatus of a vehicle transmission according to any one of claims 4 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423606.2A CN114112402B (en) | 2021-11-26 | 2021-11-26 | Fault identification method and device for vehicle transmission and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423606.2A CN114112402B (en) | 2021-11-26 | 2021-11-26 | Fault identification method and device for vehicle transmission and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114112402A CN114112402A (en) | 2022-03-01 |
| CN114112402B true CN114112402B (en) | 2025-04-29 |
Family
ID=80370305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111423606.2A Active CN114112402B (en) | 2021-11-26 | 2021-11-26 | Fault identification method and device for vehicle transmission and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114112402B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114839957A (en) * | 2022-05-11 | 2022-08-02 | 中国第一汽车股份有限公司 | Vehicle control unit simulation system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620932A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Online fault diagnosis prediction method and device thereof of automatic gearbox |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100279462B1 (en) * | 1997-12-31 | 2001-04-02 | 정몽규 | Device and method for diagnosing failure of output shaft speed sensor of automatic transmission |
| KR100570325B1 (en) * | 2004-01-07 | 2006-04-11 | 주식회사 케피코 | Oil temperature sensor short circuit, disconnection fault detection method of automatic transmission |
| US8509985B2 (en) * | 2011-05-25 | 2013-08-13 | GM Global Technology Operations LLC | Detecting anomalies in fault code settings and enhancing service documents using analytical symptoms |
| CN106402370B (en) * | 2016-12-02 | 2018-11-06 | 安徽江淮汽车集团股份有限公司 | Automatic transmission throttle pedal fault handling method and system |
| CN110696821B (en) * | 2019-11-20 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Full-automatic parking control method, equipment, storage medium and device |
-
2021
- 2021-11-26 CN CN202111423606.2A patent/CN114112402B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620932A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Online fault diagnosis prediction method and device thereof of automatic gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114112402A (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100497128B1 (en) | System for checking performance of car and method thereof | |
| KR101757075B1 (en) | Monitoring System And Method Of Driving Data For Vehicle Breakdown Diagnostics And Analysis | |
| CN106441928A (en) | Method, device and system for vehicle fault detection | |
| US9164057B2 (en) | Method for operating a measuring point | |
| US20230013544A1 (en) | Method, Apparatus and System for Detecting Abnormal Operating States of a Device | |
| KR102133385B1 (en) | Artificial intelligence device providing induction motor real-time diagnostic service and operating method thereof | |
| CN114112402B (en) | Fault identification method and device for vehicle transmission and vehicle | |
| CN114879639A (en) | Vehicle control method, vehicle control system, vehicle-mounted control device, and vehicle | |
| KR101586051B1 (en) | Apparatus and method for providing vehicle data for testing product | |
| KR101371312B1 (en) | Fault diagnosis system of vehicle | |
| CN119087213A (en) | A fault diagnosis method, device and system for electric vehicle drive motor | |
| CN115951658B (en) | Vehicle remote diagnosis method, device, server and storage medium | |
| CN111275847B (en) | Method and device for detecting shunting vehicle | |
| EP3955707A1 (en) | Method and system for predicting a failure probability of a component of an x-ray system | |
| CN111367263A (en) | Mine truck monitoring device and system | |
| KR100440139B1 (en) | Diagnosis method of a hybrid electric vehicle | |
| CN113258104A (en) | Method and device for determining humidity of fuel cell and server | |
| KR101756869B1 (en) | System for testing valve and method for testing using the same | |
| JP5430503B2 (en) | Test equipment and test method | |
| KR102172012B1 (en) | Railway vehicle safety component diagnosis apparatus | |
| US11657655B2 (en) | Vehicle component fault detection | |
| CN113126554B (en) | Optical equipment monitoring system | |
| CN119348434B (en) | Vehicle-mounted charger working process monitoring and fault early warning analysis system and method | |
| US20250208071A1 (en) | Recording apparatus, system, method, and program | |
| CN115328081B (en) | A unified diagnostic software design method for DCT 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 |