CN110223415B - Diagnosis method and system based on vehicle electronic control module software information identification - Google Patents
Diagnosis method and system based on vehicle electronic control module software information identification Download PDFInfo
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Abstract
A diagnosis method based on vehicle electronic control module software information identification comprises the following steps: sending a self-recognition command to a vehicle ECU; receiving software information of an electric control module returned by the vehicle ECU; analyzing a software version number from the software information of the electronic control module as a keyword; matching the keywords in a database keyword and diagnosis file corresponding relation table to find out a corresponding diagnosis file; and generating a diagnosis interface through the diagnosis file. The method can quickly and effectively confirm the bottom software of the electric control module on the vehicle, further find the corresponding diagnosis file and generate the corresponding diagnosis interface, is convenient for the maintenance personnel to diagnose, and improves the diagnosis efficiency.
Description
Technical Field
The invention relates to the technical field of vehicle diagnosis, in particular to a diagnosis method and system based on vehicle electronic control module software information identification.
Background
Along with the development of the automobile industry, an electric control system of a vehicle is more and more complex, electric control modules with different function types are more and more, a module (ECU) for controlling an engine, a module (DCU) for controlling aftertreatment, a module (ABS) for controlling a brake, a module (CBCU) for controlling a vehicle body, a module (TCU) for controlling a gearbox, a module (ICU) for controlling an instrument and the like are arranged, and the functions realized by the modules are different.
The electronic control module on the vehicle is produced by different manufacturers; meanwhile, the function of each module can be customized according to the requirement of the whole car factory. The reflection to the application level, i.e. the underlying software in each module, is different. Different underlying software, its diagnostic methods and protocols differ.
Practitioners in the maintenance industry cannot quickly and effectively confirm the bottom software of the electronic control module on the vehicle, and have great troubles in diagnosis:
1. incorrect software is mistakenly identified, correct and effective connection cannot be established, and further diagnosis cannot be carried out;
2. even if a valid connection is established with the misidentified software, the read information is erroneous and cannot be effectively diagnosed;
3. multiple attempts are required to confirm which underlying software is on an electronic control module.
In a word, when the bottom software of the electric control module of the vehicle cannot be confirmed quickly, the diagnosis and maintenance efficiency is low.
Disclosure of Invention
Based on the above, the diagnostic method and the system thereof based on the software information identification of the vehicle electric control module are provided for the technical problems.
In order to solve the technical problems, the invention adopts the following technical scheme:
a diagnosis method based on vehicle electronic control module software information identification comprises the following steps:
sending a self-recognition command to a vehicle ECU;
receiving software information of an electric control module returned by the vehicle ECU;
analyzing a software version number from the software information of the electronic control module as a keyword;
matching the keywords in a database keyword and diagnosis file corresponding relation table to find out a corresponding diagnosis file;
and generating a diagnosis interface through the diagnosis file.
The sending of the self-recognition command to the vehicle ECU includes:
A. obtaining communication parameters:
reading a packet splicing parameter from a database, and if the packet splicing parameter is 10, reading a pre-combined communication mode, namely a communication pin-baud rate from the database as a communication parameter;
if the packet splicing parameter is 00, reading the communication mode, the communication pin and the baud rate from the database and the diagnosis port respectively, and combining to obtain the communication mode, namely the communication pin-baud rate as a communication parameter;
if the packet splicing parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
if the packet splicing parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
B. reading a self-identification command from a database;
C. reading a communication mode corresponding to the self-identification command from a database;
D. c, matching corresponding communication parameters through the communication mode read in the step C;
E. and B, reading the times of package sending and the sequence of package sending from a database, and sending the self-identification command read in the step B through the times of package sending, the sequence of package sending and the matching to the communication parameters.
And providing an operation interface for a user to configure the communication mode, the communication pin, the baud rate, the pre-combined communication mode, the communication pin-baud rate, the packet sending times, the packet sending sequence and the packet splicing parameters to the database.
And resolving the software version number as a keyword according to the position and the format of the software version number in the electronic control module software information returned by the vehicle ECU of each manufacturer.
The matching of the keywords in the database and the corresponding relation table of the diagnosis files and the finding of the corresponding diagnosis files comprises the following steps:
the keyword and diagnostic file corresponding relation table is provided with matching parameters of type, key1, key2, key3 and diagnostic file name value;
when the matching parameter type is 1, the priority of key1 is more than the priority of key2 is more than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, a corresponding diagnostic file is found; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file; if the keywords are not matched with keys 1 and 2, the keywords are matched with keys 3, and if the keywords are matched with the keys, corresponding diagnostic files are found;
when the matching parameter type is 2, if the keyword includes keys 1, 2 and 3 in the same row, finding the corresponding diagnosis file.
The scheme also relates to a diagnosis system based on vehicle electronic control module software information identification, which comprises a storage module arranged in vehicle diagnosis equipment, wherein a plurality of instructions are stored in the storage module, and the instructions are loaded and executed by a processor:
sending a self-recognition command to a vehicle ECU;
receiving software information of an electric control module returned by the vehicle ECU;
analyzing a software version number from the software information of the electronic control module as a keyword;
matching the keywords in a database keyword and diagnosis file corresponding relation table to find out a corresponding diagnosis file;
and generating a diagnosis interface through the diagnosis file.
The sending of the self-recognition command to the vehicle ECU includes:
A. obtaining communication parameters:
reading a packet splicing parameter from a database, and if the packet splicing parameter is 10, reading a pre-combined communication mode, namely a communication pin-baud rate from the database as a communication parameter;
if the packet splicing parameter is 00, reading the communication mode, the communication pin and the baud rate from the database and the diagnosis port respectively, and combining to obtain the communication mode, namely the communication pin-baud rate as a communication parameter;
if the packet splicing parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
if the packet splicing parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
B. reading a self-identification command from a database;
C. reading a communication mode corresponding to the self-identification command from a database;
D. c, matching corresponding communication parameters through the communication mode read in the step C;
E. and B, reading the times of package sending and the sequence of package sending from a database, and sending the self-identification command read in the step B through the times of package sending, the sequence of package sending and the matching to the communication parameters.
And providing an operation interface for a user to configure the communication mode, the communication pin, the baud rate, the pre-combined communication mode, the communication pin-baud rate, the packet sending times, the packet sending sequence and the packet splicing parameters to the database.
And resolving the software version number as a keyword according to the position and the format of the software version number in the electronic control module software information returned by the vehicle ECU of each manufacturer.
The matching of the keywords in the database and the corresponding relation table of the diagnosis files and the finding of the corresponding diagnosis files comprises the following steps:
the keyword and diagnostic file corresponding relation table is provided with matching parameters of type, key1, key2, key3 and diagnostic file name value;
when the matching parameter type is 1, the priority of key1 is more than the priority of key2 is more than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, a corresponding diagnostic file is found; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file; if the keywords are not matched with keys 1 and 2, the keywords are matched with keys 3, and if the keywords are matched with the keys, corresponding diagnostic files are found;
when the matching parameter type is 2, if the keyword includes keys 1, 2 and 3 in the same row, finding the corresponding diagnosis file.
The method can quickly and effectively confirm the bottom software of the electric control module on the vehicle, further find the corresponding diagnosis file and generate the corresponding diagnosis interface, is convenient for the maintenance personnel to diagnose, and improves the diagnosis efficiency.
Detailed Description
A diagnosis method based on vehicle electronic control module software information identification comprises the following steps:
the method comprises the following steps that a diagnostic device sends a self-recognition command to a vehicle ECU, wherein the self-recognition command can enable the vehicle ECU to return software information of an electronic control module, and the method specifically comprises the following steps:
A. obtaining communication parameters:
reading the packet splicing parameters from the database, preferentially judging the pre-combined communication mode-communication pin-baud rate, namely preferentially judging whether the parameters are 10, and if the packet splicing parameters are 10, reading the pre-combined communication mode-communication pin-baud rate from the database as the communication parameters.
If the packet splicing parameter is 00, the communication mode, the communication pin and the baud rate are respectively read from the database and the diagnosis port and are combined to obtain the communication mode, namely the communication pin and the baud rate, which are used as communication parameters. The data of the diagnostic port is scanned and read by a lower computer (interface adapter) of the diagnostic device.
If the packet parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode-the communication pin-the baud rate as the communication parameter.
If the packet parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining the communication mode, the communication pin and the baud rate to obtain the communication mode, the communication pin and the baud rate as the communication parameter.
The invention provides an operation interface on the diagnostic equipment, and the operation interface provides an operation interface for configuring a communication mode, a communication pin, a baud rate, a pre-combined communication mode, namely the communication pin-baud rate, a packet sending frequency, a packet sending sequence and a packet splicing parameter for a user to a database.
The communication mode refers to communication with the ECU through CAN, K, 485 or 232, one diagnostic protocol corresponds to one communication mode, for example, the 14230 diagnostic protocol enables the diagnostic equipment to establish communication with the ECU through K; when the operation interface is configured, when a plurality of communication modes exist, different communication modes are separated by English semicolons, the communication modes have a sequence, and if the communication modes are filled in the front, the communication is preferentially carried out.
The communication pins are used for communicating with the ECU through which pins on the OBD diagnosis interface are communicated, when the operation interface is configured, the pins with different communication modes are configured through configuration columns of the communication pins-CAN, the communication pins-K, the communication pins-485 and the communication pins-232, when a plurality of groups of pins are communicated, the pins are separated by English sub-numbers, the filling sequence of the communication pins is filled in the front, and communication is preferentially carried out. The communication pin is only activated when the communication mode is configured with the corresponding mode, if the communication mode is configured with the CAN, the pin configured in the communication pin-CAN is activated, and if the communication mode is not configured with the K, the pin configured in the communication pin-K is deactivated.
The baud rate is the baud rate when communicating with the ECU, when an operation interface is configured, when a plurality of groups of baud rates exist, the baud rates of different communication modes are configured through configuration columns of the baud rate-CAN, the baud rate-K, the baud rate-485 and the baud rate-232 and are separated by English signals, the baud rates are filled in sequence and are filled in the front, and communication is preferentially carried out. The baud rate is only effective when the communication mode is configured with the corresponding mode, if the communication mode is configured with the CAN, the baud rate configured in the baud rate-CAN is effective, and if the communication mode is not configured with the K, the baud rate configured in the baud rate-K is ineffective.
The number of times of packet transmission is the number of retries of transmission of each self-recognition command without response, and is configured to be 2 times of total transmission, and is configured to be 23 times of total transmission, namely 3 times of total transmission.
The packet sending sequence specifies the combination of communication parameters and self-recognition commands. If there are 2 communication parameters and 2 commands, the first communication parameter can be used to send two commands one by one, and then the second communication parameter is used to send two commands; or the first command can be used for sending packets by matching the communication parameters one by one.
When the transmission sequence is defined as 01, the first command is used to try all the communication parameters, and so on.
When the order of transmission is defined as 10, first, all commands are tried with the first communication parameter, and so on.
The specific parameter column of the operation interface CAN be configured with a pre-combined communication mode, namely a communication pin baud rate, and the filling format is CAN-6/14-250; k-7-10400, multiple groups can be filled in and separated by English semicolons.
B. The self-identification command is read from the database. The self-recognition commands corresponding to the electric control modules of all vehicle types are pre-stored in the database, and each self-recognition command corresponds to a corresponding parameter and an analysis rule, which are shown in table 1.
| ID | Command packet ID | Communication method | Communication mode | Transmit-receive ID | Initialization command | Self-identifying commands | Parsing rules |
| 1 | 1 | k | k | 11F1 | 1A8E | k5,k6,k7 | |
| 2 | 1 | k | k | 11F1 | 1A94 | k5,k6,k7 | |
| 3 | 1 | k | k | 11F1 | 1A95 | k5,k6,k7 | |
| 4 | 2 | can | CAN | 98DA00FA | 1A8E | k5,k6,k7 | |
| 5 | 2 | can | CAN | 98DA00FA | 1A94 | k5,k6,k7 | |
| 6 | 2 | can | CAN | 98DA00FA | 1A95 | k5,k6,k7 |
TABLE 1
Wherein, the ID is automatically generated by the system and is not allowed to be modified.
The command packet ID is the ID of each command packet, and is modifiable.
The communication mode is as follows: K. CAN, 485, or 232.
And (3) communication mode: as above.
And (3) receiving and sending ID: a communication address for sending commands and receiving data.
Initialization command: optionally, some diagnostic protocols require an initialization command to be sent to communicate with the ECU before a valid reply is received from the self-identification command sent, such as the diagnostic protocol 14230, which requires the ECU to be sent 81 first.
Analyzing the rule: and the software information of the corresponding returned electric control module is analyzed.
C. And reading the communication mode corresponding to the self-identification command from the database.
D. And C, matching the communication mode read in the step C with the communication parameters obtained in the step A to obtain corresponding communication parameters. And C, if the communication mode of a certain self-identification command is read to be K in the step C, the communication parameters obtained in the step A are K-stitch-baud rate and CAN-stitch-baud rate, and the communication parameters obtained through matching are K-stitch-baud rate.
E. And B, reading the times of packet sending and the sequence of packet sending from the database, and sending the self-identification command read in the step B through the times of packet sending, the sequence of packet sending and the matching to the communication parameters.
And secondly, receiving the software information of the electronic control module returned by the vehicle ECU by the diagnosis equipment.
And thirdly, analyzing the software version number from the software information of the electric control module as a keyword. And during analysis, analyzing according to the position and the format of the software version number in the software information of the electronic control module returned by the vehicle ECU of each manufacturer.
The invention sets nine analysis rules k1-k9 aiming at the position and format of the software version number in the software information of the electric control module returned by a common vehicle, each rule has corresponding configuration parameters, the configuration parameters are stored in a database and correspond to the corresponding analysis rules, and the corresponding configuration parameters can be found through the analysis rules, which is described in detail as follows:
1)K1
configuring parameters: x01x02x03
The analysis method comprises the following steps: x01x02x03 represents taking the first 3 bytes (from left to right) of the electrical control module software information as a key.
2)K2
Configuring parameters: [ x01x02x03]
The analysis method comprises the following steps: the first 3 bytes (from left to right) of the software information of the electronic control module are taken and then converted into asc2 as a key word.
3)K3
Configuring parameters: d [ x01x02x03]
The analysis method comprises the following steps: and taking the first 3 bytes (from left to right) of the software information of the electronic control module, and converting the information into decimal as a keyword.
4)K4
Configuring parameters: 0.2-128 < 10: key1 [ x01x02x03 ]; >15 key 2; key3
The analysis method comprises the following steps: and taking the first 3 bytes of the software information of the electronic control module, converting the information into a 10-system, and then carrying out 0.2-128 operation, wherein if the operation result is less than 10, the value of key1 is used as a keyword, if the operation result is more than 15, the value of key2 is used as a keyword, and otherwise, the value of key3 is used as a keyword.
5)K5
Configuring parameters: is free of
The analysis method comprises the following steps: after the returned software information of the electronic control module is converted into asc2, the data after the first English colon and the second English colon are taken from left to right as keywords, if two keywords are taken out, 2 keywords are available, and if 1 keyword is taken out, only 1 keyword is available.
If the software information of the electric control module is converted into asc2, the software information is 60000000:10SW015775:924741DC:80000000:10SW015775:924741DC, and the software information is analyzed to be 10SW015775924741 DC.
6)K6
Configuring parameters: is free of
The analysis method comprises the following steps: and after the returned software information of the electronic control module is converted into asc2, only the data before hex is taken, English letters and underlines are removed, and the reserved characters are keywords.
If the software information of the electronic control module is converted into asc2, it is P _949_732_ FULL _ SCR. hex RB EDC 17P 949V 732, and then it is analyzed as 949732.
7)K7
Configuring parameters: is free of
The analysis method comprises the following steps: and after the returned software information of the electronic control module is converted into asc2, taking the number in the tail [ ], removing English letters, underlines and the rest numbers of the English dot number, if the 4 th bit and the 5 th bit are 16, removing, using the rest characters as keywords, and not using the rest characters as the keywords, wherein all the characters are the keywords.
For example, the software information of the electric control module is converted into asc2 and then is called BOSCH EDC7UC31-14.E0MPC561/RevA CC _ OFF 56/56/2010.02.2008[ F _ PA _ P _579.16.4.7], and after analysis, is 57947.
8)K8
Configuring parameters: is free of
The analysis method comprises the following steps: after the returned software information of the electronic control module is converted into asc2, the remaining numbers of the special characters are removed to be keywords, for example, after the characters are removed from the P _949_732, the keywords are 949732.
9)K9
Configuring parameters:
[18FFDF00,18FFFDDF02],key1；[18FFDF00,18FFFDDF03],key2；key3
the analysis method comprises the following steps: and matching the frame ID of the returned electronic control module software information in the configuration parameters, completely containing the ID, and returning the corresponding key as a keyword if the frame ID contains the ID at most.
If the frame IDs of the returned electronic control module software information are 18FFDF00,18FFFDDF02,18FFFDDF03 and 18FFFDDF04, the parsed keywords are two: the value of key1 and the value of key 2.
Of course, a restriction ID may also be set for the parsing rule, where the restriction ID serves to restrict the address to be searched when the corresponding diagnostic file is found through the parsed keyword, and if no restriction ID is set, the search is performed at all addresses by default, otherwise, the diagnostic file is searched at the corresponding address.
Matching keywords in the database keyword and diagnosis file correspondence table to find corresponding diagnosis files, wherein the steps specifically comprise:
the keyword and diagnostic file correspondence table has matching parameters of type, key1, key2, key3 and diagnostic file name value, see table 2.
TABLE 2
1) The ID is a system ID.
2) type refers to a match parameter.
3) key1-key3 is used to match the parsed key.
4) value is the diagnostic file name.
5) And hint is prompt information and shows the software system name of the electronic control module to a user.
6) Remarks is remark information and is used internally.
When the matching parameter type is 1, the priority of key1 is greater than the priority of key2 is greater than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, the corresponding diagnostic file is found through the corresponding value; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file through a corresponding value; and if the keywords are not matched with the keys 1 and 2, the keywords are matched with the keys 3, and if the keywords are matched with the keys, the corresponding diagnosis files are found through the corresponding values.
When the matching parameter type is 2, if the keyword includes key1, key2 and key3 in the same row, the corresponding diagnostic file is found through the corresponding value.
It should be noted that, when the same keyword, i.e. key1, is matched with key2 and key3, the diagnostic file with the highest priority is selected after the corresponding diagnostic file is found by the corresponding value. When two diagnostic files with the same priority are matched, the first diagnostic file is prioritized.
And fifthly, the diagnostic equipment generates a diagnostic interface through the diagnostic file.
The method can quickly and effectively confirm the bottom software of the electric control module on the vehicle, further find the corresponding diagnosis file and generate the corresponding diagnosis interface, is convenient for the maintenance personnel to diagnose, and improves the diagnosis efficiency.
In addition, the invention can respectively read the communication mode, the communication pin and the baud rate from the database and the diagnosis port, and combine the communication mode, the communication pin and the baud rate to obtain the communication mode, the communication pin and the baud rate which are used as communication parameters to send self-identification commands, so that the corresponding diagnosis files can be found more quickly and accurately.
The following is illustrated by way of example:
the communication mode of the database configuration is as follows: CAN, K.
Communication pin-CAN of database configuration: 6,14.
Communication pin-K of database configuration: 7.
communication baud rate of database configuration-CAN: 250.
communication baud rate-K of database configuration: 10400.
configuration parameters of port scanning: CAN-3/11-500, K-7-10400.
Package description of database configuration: 00, combined information of the lower computer and the database is used for representing the communication parameters.
Then the combined communication parameters have 3 sets:
CAN-6/14-250,CAN-3/11-500,K-7-10400。
screening rules: exclusion of conflicts with scan parameters; and (3) sequencing rules: the first priority is a scanning parameter, and the second priority is the sequence of baud rates from small to large.
The combination after screening is ranked as: CAN-3/11-500, K-7-10400 and CAN-6/14-250.
The commands for the database configuration are as in table 3.
| ID | Command packet ID | Communication method | Communication mode | Transmit-receive ID | Initialization command | Parsing commands | Parsing rules |
| 1 | 1 | CAN | CAN | 98DA00FA | 1A8E | k5,k6,k7 | |
| 2 | 2 | CAN | CAN | 98DA10FA | 1A94 | K5 | |
| 3 | 3 | K | K | 11F1 | 1A94 | k5 |
TABLE 3
The data base is configured with a packet sending sequence of 10, which means that all commands are tried by using the first communication parameter, and so on, and the packet sending process is as follows:
1. sending 1A 8E under CAN-3/11-500 by using a communication address 98DA00FA, receiving a reply, carrying out corresponding analysis, and matching corresponding diagnostic files; if no reply is received, an attempt is made to send the next set of combinations.
2. Sending 1A 94 under CAN-3/11-500 by using a communication address 98DA10FA, receiving a reply, carrying out corresponding analysis, and matching corresponding diagnostic files; if no reply is received, an attempt is made to send the next set of combinations.
3. Sending 1A 94 at the communication address 11f1 under K-7-10400, receiving the reply, performing corresponding analysis, and matching with the corresponding diagnostic file; if no reply is received, an attempt is made to send the next set of combinations.
4. Sending 1A 8E under CAN-6/14-250 at a communication address of 98DA00FA, receiving the reply, performing corresponding analysis, and matching corresponding diagnostic files; if no reply is received, an attempt is made to send the next set of combinations.
5. Sending 1A 94 under CAN-6/14-250 with communication address 98DA10FA, receiving the reply, performing corresponding analysis, and matching corresponding diagnostic files; if not, the communication failure is prompted.
The scheme also relates to a diagnosis system based on vehicle electronic control module software information identification, which comprises a storage module arranged in vehicle diagnosis equipment, wherein a plurality of instructions are stored in the storage module, and the instructions are loaded and executed by a processor:
the method comprises the following steps that a diagnostic device sends a self-recognition command to a vehicle ECU, wherein the self-recognition command can enable the vehicle ECU to return software information of an electronic control module, and the method specifically comprises the following steps:
A. obtaining communication parameters:
reading the packet splicing parameters from the database, preferentially judging the pre-combined communication mode-communication pin-baud rate, namely preferentially judging whether the parameters are 10, and if the packet splicing parameters are 10, reading the pre-combined communication mode-communication pin-baud rate from the database as the communication parameters.
If the packet splicing parameter is 00, the communication mode, the communication pin and the baud rate are respectively read from the database and the diagnosis port and are combined to obtain the communication mode, namely the communication pin and the baud rate, which are used as communication parameters. The data of the diagnostic port is scanned and read by a lower computer (interface adapter) of the diagnostic device.
If the packet parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode-the communication pin-the baud rate as the communication parameter.
If the packet parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining the communication mode, the communication pin and the baud rate to obtain the communication mode, the communication pin and the baud rate as the communication parameter.
The invention provides an operation interface on the diagnostic equipment, and the operation interface provides an operation interface for configuring a communication mode, a communication pin, a baud rate, a pre-combined communication mode, namely the communication pin-baud rate, a packet sending frequency, a packet sending sequence and a packet splicing parameter for a user to a database.
The communication mode refers to communication with the ECU through CAN, K, 485 or 232, one diagnostic protocol corresponds to one communication mode, for example, the 14230 diagnostic protocol enables the diagnostic equipment to establish communication with the ECU through K; when the operation interface is configured, when a plurality of communication modes exist, different communication modes are separated by English semicolons, the communication modes have a sequence, and if the communication modes are filled in the front, the communication is preferentially carried out.
The communication pins are used for communicating with the ECU through which pins on the OBD diagnosis interface are communicated, when the operation interface is configured, the pins with different communication modes are configured through configuration columns of the communication pins-CAN, the communication pins-K, the communication pins-485 and the communication pins-232, when a plurality of groups of pins are communicated, the pins are separated by English sub-numbers, the filling sequence of the communication pins is filled in the front, and communication is preferentially carried out. The communication pin is only activated when the communication mode is configured with the corresponding mode, if the communication mode is configured with the CAN, the pin configured in the communication pin-CAN is activated, and if the communication mode is not configured with the K, the pin configured in the communication pin-K is deactivated.
The baud rate is the baud rate when communicating with the ECU, when an operation interface is configured, when a plurality of groups of baud rates exist, the baud rates of different communication modes are configured through configuration columns of the baud rate-CAN, the baud rate-K, the baud rate-485 and the baud rate-232 and are separated by English signals, the baud rates are filled in sequence and are filled in the front, and communication is preferentially carried out. The baud rate is only effective when the communication mode is configured with the corresponding mode, if the communication mode is configured with the CAN, the baud rate configured in the baud rate-CAN is effective, and if the communication mode is not configured with the K, the baud rate configured in the baud rate-K is ineffective.
The number of times of packet transmission is the number of retries of transmission of each self-recognition command without response, and is configured to be 2 times of total transmission, and is configured to be 23 times of total transmission, namely 3 times of total transmission.
The packet sending sequence specifies the combination of communication parameters and self-recognition commands. If there are 2 communication parameters and 2 commands, the first communication parameter can be used to send two commands one by one, and then the second communication parameter is used to send two commands; or the first command can be used for sending packets by matching the communication parameters one by one.
When the transmission sequence is defined as 01, the first command is used to try all the communication parameters, and so on.
When the order of transmission is defined as 10, first, all commands are tried with the first communication parameter, and so on.
The specific parameter column of the operation interface CAN be configured with a pre-combined communication mode, namely a communication pin baud rate, and the filling format is CAN-6/14-250; k-7-10400, multiple groups can be filled in and separated by English semicolons.
B. The self-identification command is read from the database. The self-recognition commands corresponding to the electric control modules of all vehicle types are pre-stored in the database, and each self-recognition command corresponds to a corresponding parameter and an analysis rule, which are shown in table 1.
| ID | Command packet ID | Communication method | Communication mode | Transmit-receive ID | Initialization command | Self-identifying commands | Parsing rules |
| 1 | 1 | k | k | 11F1 | 1A8E | k5,k6,k7 | |
| 2 | 1 | k | k | 11F1 | 1A94 | k5,k6,k7 | |
| 3 | 1 | k | k | 11F1 | 1A95 | k5,k6,k7 | |
| 4 | 2 | can | CAN | 98DA00FA | 1A8E | k5,k6,k7 | |
| 5 | 2 | can | CAN | 98DA00FA | 1A94 | k5,k6,k7 | |
| 6 | 2 | can | CAN | 98DA00FA | 1A95 | k5,k6,k7 |
TABLE 1
Wherein, the ID is automatically generated by the system and is not allowed to be modified.
The command packet ID is the ID of each command packet, and is modifiable.
The communication mode is as follows: K. CAN, 485, or 232.
And (3) communication mode: as above.
And (3) receiving and sending ID: a communication address for sending commands and receiving data.
Initialization command: optionally, some diagnostic protocols require an initialization command to be sent to communicate with the ECU before a valid response is received from the self-identification command sent, such as the diagnostic protocol 14230, which requires the ECU to be sent 81 first.
Analyzing the rule: and the software information of the corresponding returned electric control module is analyzed.
C. And reading the communication mode corresponding to the self-identification command from the database.
D. And C, matching the communication mode read in the step C with the communication parameters obtained in the step A to obtain corresponding communication parameters. And C, if the communication mode of a certain self-identification command is read to be K in the step C, the communication parameters obtained in the step A are K-stitch-baud rate and CAN-stitch-baud rate, and the communication parameters obtained through matching are K-stitch-baud rate.
E. And B, reading the times of packet sending and the sequence of packet sending from the database, and sending the self-identification command read in the step B through the times of packet sending, the sequence of packet sending and the matching to the communication parameters.
And secondly, receiving the software information of the electronic control module returned by the vehicle ECU by the diagnosis equipment.
And thirdly, analyzing the software version number from the software information of the electric control module as a keyword. And during analysis, analyzing according to the position and the format of the software version number in the software information of the electronic control module returned by the vehicle ECU of each manufacturer.
The invention sets nine analysis rules k1-k9 aiming at the position and format of the software version number in the software information of the electric control module returned by a common vehicle, each rule has corresponding configuration parameters, the configuration parameters are stored in a database and correspond to the corresponding analysis rules, and the corresponding configuration parameters can be found through the analysis rules, which is described in detail as follows:
1)K1
configuring parameters: x01x02x03
The analysis method comprises the following steps: x01x02x03 represents taking the first 3 bytes (from left to right) of the electrical control module software information as a key.
2)K2
Configuring parameters: [ x01x02x03]
The analysis method comprises the following steps: the first 3 bytes (from left to right) of the software information of the electronic control module are taken and then converted into asc2 as a key word.
3)K3
Configuring parameters: d [ x01x02x03]
The analysis method comprises the following steps: and taking the first 3 bytes (from left to right) of the software information of the electronic control module, and converting the information into decimal as a keyword.
4)K4
Configuring parameters: 0.2-128 < 10: key1 [ x01x02x03 ]; >15 key 2; key3
The analysis method comprises the following steps: and taking the first 3 bytes of the software information of the electronic control module, converting the information into a 10-system, and then carrying out 0.2-128 operation, wherein if the operation result is less than 10, the value of key1 is used as a keyword, if the operation result is more than 15, the value of key2 is used as a keyword, and otherwise, the value of key3 is used as a keyword.
5)K5
Configuring parameters: is free of
The analysis method comprises the following steps: after the returned software information of the electronic control module is converted into asc2, the data after the first English colon and the second English colon are taken from left to right as keywords, if two keywords are taken out, 2 keywords are available, and if 1 keyword is taken out, only 1 keyword is available.
If the software information of the electric control module is converted into asc2, the software information is 60000000:10SW015775:924741DC:80000000:10SW015775:924741DC, and the software information is analyzed to be 10SW015775924741 DC.
6)K6
Configuring parameters: is free of
The analysis method comprises the following steps: and after the returned software information of the electronic control module is converted into asc2, only the data before hex is taken, English letters and underlines are removed, and the reserved characters are keywords.
If the software information of the electronic control module is converted into asc2, it is P _949_732_ FULL _ SCR. hex RB EDC 17P 949V 732, and then it is analyzed as 949732.
7)K7
Configuring parameters: is free of
The analysis method comprises the following steps: and after the returned software information of the electronic control module is converted into asc2, taking the number in the tail [ ], removing English letters, underlines and the rest numbers of the English dot number, if the 4 th bit and the 5 th bit are 16, removing, using the rest characters as keywords, and not using the rest characters as the keywords, wherein all the characters are the keywords.
For example, the software information of the electric control module is converted into asc2 and then is called BOSCH EDC7UC31-14.E0MPC561/RevA CC _ OFF 56/56/2010.02.2008[ F _ PA _ P _579.16.4.7], and after analysis, is 57947.
8)K8
Configuring parameters: is free of
The analysis method comprises the following steps: after the returned software information of the electronic control module is converted into asc2, the remaining numbers of the special characters are removed to be keywords, for example, after the characters are removed from the P _949_732, the keywords are 949732.
9)K9
Configuring parameters:
[18FFDF00,18FFFDDF02],key1；[18FFDF00,18FFFDDF03],key2；key3
the analysis method comprises the following steps: and matching the frame ID of the returned electronic control module software information in the configuration parameters, completely containing the ID, and returning the corresponding key as a keyword if the frame ID contains the ID at most.
If the frame IDs of the returned electronic control module software information are 18FFDF00,18FFFDDF02,18FFFDDF03 and 18FFFDDF04, the parsed keywords are two: the value of key1 and the value of key 2.
Of course, a restriction ID may also be set for the parsing rule, where the restriction ID serves to restrict the address to be searched when the corresponding diagnostic file is found through the parsed keyword, and if no restriction ID is set, the search is performed at all addresses by default, otherwise, the diagnostic file is searched at the corresponding address.
Matching keywords in the database keyword and diagnosis file correspondence table to find corresponding diagnosis files, wherein the steps specifically comprise:
the keyword and diagnostic file correspondence table has matching parameters of type, key1, key2, key3 and diagnostic file name value, see table 2.
TABLE 2
1) The ID is a system ID.
2) type refers to a match parameter.
3) key1-key3 is used to match the parsed key.
4) value is the diagnostic file name.
5) And hint is prompt information and shows the software system name of the electronic control module to a user.
6) Remarks is remark information and is used internally.
When the matching parameter type is 1, the priority of key1 is greater than the priority of key2 is greater than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, the corresponding diagnostic file is found through the corresponding value; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file through a corresponding value; and if the keywords are not matched with the keys 1 and 2, the keywords are matched with the keys 3, and if the keywords are matched with the keys, the corresponding diagnosis files are found through the corresponding values.
When the matching parameter type is 2, if the keyword includes key1, key2 and key3 in the same row, the corresponding diagnostic file is found through the corresponding value.
It should be noted that, when the same keyword, i.e. key1, is matched with key2 and key3, the diagnostic file with the highest priority is selected after the corresponding diagnostic file is found by the corresponding value. When two diagnostic files with the same priority are matched, the first diagnostic file is prioritized.
And fifthly, the diagnostic equipment generates a diagnostic interface through the diagnostic file.
The method can quickly and effectively confirm the bottom software of the electric control module on the vehicle, further find the corresponding diagnosis file and generate the corresponding diagnosis interface, is convenient for the maintenance personnel to diagnose, and improves the diagnosis efficiency.
In addition, the invention can respectively read the communication mode, the communication pin and the baud rate from the database and the diagnosis port, and combine the communication mode, the communication pin and the baud rate to obtain the communication mode, the communication pin and the baud rate which are used as communication parameters to send self-identification commands, so that the corresponding diagnosis files can be found more quickly and accurately.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (8)
1. A diagnosis method based on vehicle electronic control module software information identification is characterized by comprising the following steps:
sending a self-recognition command to a vehicle ECU;
receiving software information of an electric control module returned by the vehicle ECU;
analyzing a software version number from the software information of the electronic control module as a keyword;
matching the keywords in a database keyword and diagnosis file corresponding relation table to find out a corresponding diagnosis file;
generating a diagnosis interface through the diagnosis file;
the sending of the self-recognition command to the vehicle ECU includes:
A. obtaining communication parameters:
reading a packet splicing parameter from a database, and if the packet splicing parameter is 10, reading a pre-combined communication mode, namely a communication pin-baud rate from the database as a communication parameter;
if the packet splicing parameter is 00, reading the communication mode, the communication pin and the baud rate from the database and the diagnosis port respectively, and combining to obtain the communication mode, namely the communication pin-baud rate as a communication parameter;
if the packet splicing parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
if the packet splicing parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
B. reading a self-identification command from a database;
C. reading a communication mode corresponding to the self-identification command from a database;
D. c, matching corresponding communication parameters through the communication mode read in the step C;
E. and B, reading the times of package sending and the sequence of package sending from a database, and sending the self-identification command read in the step B through the times of package sending, the sequence of package sending and the matching to the communication parameters.
2. The vehicle electronic control module software information identification-based diagnostic method of claim 1, wherein an operation interface is provided for a user to configure communication modes, communication pins, baud rates, pre-combined communication modes-communication pins-baud rates, package sending times, package sending sequence and package splicing parameters to the database.
3. The vehicle electronic control module software information identification-based diagnosis method as claimed in claim 2, wherein the software version number is parsed as a keyword according to the position and format of the software version number in the electronic control module software information returned by the vehicle ECUs of each manufacturer.
4. The vehicle electronic control module software information identification-based diagnosis method according to claim 3, wherein the matching of the keywords in the database and the diagnosis file correspondence table to find the corresponding diagnosis file comprises:
the keyword and diagnostic file corresponding relation table is provided with matching parameters of type, key1, key2, key3 and diagnostic file name value;
when the matching parameter type is 1, the priority of key1 is more than the priority of key2 is more than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, a corresponding diagnostic file is found; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file; if the keywords are not matched with keys 1 and 2, the keywords are matched with keys 3, and if the keywords are matched with the keys, corresponding diagnostic files are found;
when the matching parameter type is 2, if the keyword includes keys 1, 2 and 3 in the same row, finding the corresponding diagnosis file.
5. A diagnosis system based on vehicle electronic control module software information identification is characterized by comprising a storage module arranged in vehicle diagnosis equipment, wherein a plurality of instructions are stored in the storage module and loaded and executed by a processor:
sending a self-recognition command to a vehicle ECU;
receiving software information of an electric control module returned by the vehicle ECU;
analyzing a software version number from the software information of the electronic control module as a keyword;
matching the keywords in a database keyword and diagnosis file corresponding relation table to find out a corresponding diagnosis file;
generating a diagnosis interface through the diagnosis file;
the sending of the self-recognition command to the vehicle ECU includes:
A. obtaining communication parameters:
reading a packet splicing parameter from a database, and if the packet splicing parameter is 10, reading a pre-combined communication mode, namely a communication pin-baud rate from the database as a communication parameter;
if the packet splicing parameter is 00, reading the communication mode, the communication pin and the baud rate from the database and the diagnosis port respectively, and combining to obtain the communication mode, namely the communication pin-baud rate as a communication parameter;
if the packet splicing parameter is 11, reading the communication mode, the communication pin and the baud rate from the diagnosis port, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
if the packet splicing parameter is 01, reading the communication mode, the communication pin and the baud rate from the database, and combining to obtain the communication mode, the communication pin and the baud rate as communication parameters;
B. reading a self-identification command from a database;
C. reading a communication mode corresponding to the self-identification command from a database;
D. c, matching corresponding communication parameters through the communication mode read in the step C;
E. and B, reading the times of package sending and the sequence of package sending from a database, and sending the self-identification command read in the step B through the times of package sending, the sequence of package sending and the matching to the communication parameters.
6. The vehicle electronic control module software information identification-based diagnostic system of claim 5, wherein an operator interface is provided for a user to configure communication means, communication pins, baud rate, pre-combined communication means-communication pins-baud rate, packet transmission times, packet transmission sequence, and packet splicing parameters to the database.
7. The vehicle electronic control module software information identification-based diagnostic system as claimed in claim 6, wherein the software version number is parsed as a keyword according to the position and format of the software version number in the electronic control module software information returned by the vehicle ECUs of each manufacturer.
8. The vehicle electronic control module software information identification-based diagnostic system according to claim 7, wherein the matching of the keywords in the database and the diagnostic file correspondence table to find the corresponding diagnostic file comprises:
the keyword and diagnostic file corresponding relation table is provided with matching parameters of type, key1, key2, key3 and diagnostic file name value;
when the matching parameter type is 1, the priority of key1 is more than the priority of key2 is more than the priority of key3, the keyword is firstly matched with key1, and if the keyword is matched with the key1, a corresponding diagnostic file is found; if the keyword is not matched with the key1, matching with the key2, and if the keyword is matched with the key2, finding a corresponding diagnostic file; if the keywords are not matched with keys 1 and 2, the keywords are matched with keys 3, and if the keywords are matched with the keys, corresponding diagnostic files are found;
when the matching parameter type is 2, if the keyword includes keys 1, 2 and 3 in the same row, finding the corresponding diagnosis file.
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| CN113064396A (en) * | 2020-01-02 | 2021-07-02 | 北京金奔腾汽车科技有限公司 | Method for intelligently scanning and identifying automobile electric control system |
| CN111984304B (en) * | 2020-08-21 | 2024-04-12 | 上海星融汽车科技有限公司 | Method and detector for identifying an electronic control module of a motor vehicle |
| CN111796583B (en) * | 2020-08-21 | 2021-06-11 | 上海星融汽车科技有限公司 | Vehicle ECU (electronic control Unit) identification method and system and vehicle diagnosis equipment |
| CN112180905A (en) * | 2020-10-22 | 2021-01-05 | 上海星融汽车科技有限公司 | Vehicle remote diagnosis system and method thereof |
| CN112684777A (en) * | 2020-12-21 | 2021-04-20 | 上海星融汽车科技有限公司 | Vehicle remote diagnosis system based on cloud platform |
| CN112600711B (en) * | 2020-12-21 | 2023-03-14 | 上海星融汽车科技有限公司 | Real vehicle bus data remote cloning system and method |
| CN112711247B (en) * | 2020-12-25 | 2022-09-20 | 深圳市元征科技股份有限公司 | Interface display method, interface display device and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202948323U (en) * | 2012-06-01 | 2013-05-22 | 奇瑞汽车股份有限公司 | Automotive fault diagnosis system |
| CN106384402A (en) * | 2016-08-30 | 2017-02-08 | 温州华邦安全封条股份有限公司 | Vehicle-mounted automatic diagnosis system and diagnosis method thereof |
| CN107491336A (en) * | 2017-09-05 | 2017-12-19 | 武汉理工大学 | A kind of automobile electrically-controlled module updating system and method |
| CN109358610A (en) * | 2018-12-10 | 2019-02-19 | 上海星融汽车科技有限公司 | The detection method of vehicle diagnostic equipment |
| CN109507987A (en) * | 2018-12-10 | 2019-03-22 | 上海星融汽车科技有限公司 | Vehicular diagnostic method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4939862B2 (en) * | 2006-07-18 | 2012-05-30 | 日立オートモティブシステムズ株式会社 | In-vehicle system and vehicle equipped with the same |
-
2019
- 2019-05-20 CN CN201910418348.5A patent/CN110223415B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202948323U (en) * | 2012-06-01 | 2013-05-22 | 奇瑞汽车股份有限公司 | Automotive fault diagnosis system |
| CN106384402A (en) * | 2016-08-30 | 2017-02-08 | 温州华邦安全封条股份有限公司 | Vehicle-mounted automatic diagnosis system and diagnosis method thereof |
| CN107491336A (en) * | 2017-09-05 | 2017-12-19 | 武汉理工大学 | A kind of automobile electrically-controlled module updating system and method |
| CN109358610A (en) * | 2018-12-10 | 2019-02-19 | 上海星融汽车科技有限公司 | The detection method of vehicle diagnostic equipment |
| CN109507987A (en) * | 2018-12-10 | 2019-03-22 | 上海星融汽车科技有限公司 | Vehicular diagnostic method |
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