CN112783549A - Method for upgrading data version number of automobile electric control element - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
A method for upgrading version number of electric control part of automobile includes reading data of A region, B region and C region in data version number of current electric control part, judging whether read data of C region is consistent with data of C region to be written in or not, judging whether sub version number in read data of C region is maximum or not if not, keeping current main version number if not, only upgrading and updating sub version number only, judging current production stage if it is, updating main version number to be next stage main version number, updating sub version number to be 001 and writing it in memory in controller. The design can meet the storage and reading requirements of different scenes, the automatic upgrade of the data version number is realized without increasing the hardware cost, the upgrade accuracy and efficiency are improved, and two modes of obtaining the version number are supported.
Description
Technical Field
The invention belongs to the technical field of automobile electronic information, and particularly relates to a version number upgrading method for an automobile electric control part.
Background
The data version number of the automobile electrical control is mainly used for tracing the life cycle of automobile software. At present, automobile ECU quantity increases gradually, and the ECU function is more complicated, and software iteration and update speed are extremely fast, nevertheless to electric control piece data version number, and very comprehensive management and control method does not exist, leads to appearing that software and hardware mismatch, application layer software and bottom mismatch scheduling problem, influence vehicle development process.
Disclosure of Invention
The invention aims to provide a version number upgrading method of an automobile electric control part, which realizes automatic upgrading management of a data version number, aiming at the problems in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a version number upgrading method for an automobile electric control part sequentially comprises the following steps:
s1, generating an electronic control piece data version number according to the electronic control system and the ECU part number, wherein the electronic control piece data version number comprises an electronic control system software version number, the electronic control system software version number is composed of data of an area A, an area B and an area C, the data of the area A is an abbreviation of the electronic control system, the data of the area B is the ECU part number, the data of the area C comprises a version identifier, a main version number and a minor version number, and the initial values of the main version number and the minor version number are 001;
s2, after the upgrading program is started, reading data of an area A, an area B and an area C in the current electric control piece data version number;
s3, updating the data in the area A and the area B into new data for flash writing;
s4, judging whether the read C area data is consistent with the C area data to be written, if so, not upgrading, and if not, entering the step S5;
s5, judging whether the minor version number in the read C-area data reaches the maximum value, if so, entering step S6, if not, keeping the current major version number, judging whether software is upgraded, if so, writing the current minor version number +001 into a memory in the controller, and if not, keeping the current minor version number;
s6, judging whether the current production stage is an ET stage or not according to the main version number in the read C area data, if so, updating the main version number to PT, updating the minor version number to 001, and then writing the PT into a memory in the controller, otherwise, entering S7;
s7, judging whether the current production stage is a PT stage or not according to the main version number in the read C area data, if so, updating the main version number to SOP, updating the minor version number to 001, and then writing the updated minor version number into a memory in the controller, otherwise, entering S8;
and S8, judging that the major version number is SOP, updating the minor version number to 001, and writing the minor version number into a memory in the controller.
In steps S5-S8, the memory in the write controller refers to: and writing the data of the area A, the area B and the area C into a memory based on a CAN network and according to a UDS protocol.
The writing mode of the memory is as follows:
DID 1: region A identifier
DID 2: b area identifier
DID 3: c area identifier
DID 4: hardware version number
DID 5: the underlying software version number.
The step S2 is based on the CAN network and reads the data in the area a, the area B, and the area C in the current electrical control data version number according to the UDS protocol, and sequentially includes the following steps:
s2-1, opening a default session mode;
s2-2, opening an extended session mode;
s2-3, judging whether the DID is F195, if so, reading the data in the C area, and if not, entering the step S2-4;
s2-4, judging whether the DID is F187, if yes, reading the data in the B area, if not, entering the step S2-5;
and S2-5, judging whether the DID is F197, if so, reading the data in the area A, and if not, ending the reading.
In the version number of the software of the electric control system, the data in the area C comprises application program version number data and calibration data version number data, the application program version number data comprises data in the area B, an application program version identifier, a main version number and a minor version number, and the calibration data version number data comprises data in the area B, a calibration data version identifier, a main version number and a minor version number.
Step S2 is to read the application layer software version number data and the calibration data version number data in the current electronic control element data version number by obtaining the entire vehicle message, and the entire vehicle message sending method sequentially includes the following steps:
s2.1, if the controller receives a data version number request instruction, the step S2.2 is entered, and if the controller breaks down, the fault controller sends the data version number to the CAN bus;
s2.2, judging whether the request instruction is sent in a physical addressing mode or a functional addressing mode according to the ID sending the request instruction, if the request instruction is in the physical addressing mode, the controller appointing the ID sends a data version number to the CAN bus in a periodic message mode, and if the request instruction is in the functional addressing mode, entering S2.3;
s2.3, circularly detecting the bus load rate until the bus load rate is less than or equal to C;
and S2.4, all the controllers send the data version number to the CAN bus in a message mode.
The electronic control data version number further comprises at least one of an application program version number, a calibration data version number, a hardware version number and a bottom layer software version number.
The hardware version number is composed of a hardware version identifier and a version number, the bottom layer software version number is composed of a bottom layer software version identifier and a version number, and the initial values of the version numbers in the hardware version number and the bottom layer software version number are 001.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a method for upgrading version numbers of automobile electric control parts, which comprises the steps of firstly reading data in an area A, an area B and an area C in the data version number of a current electric control part, then judging whether the read data in the area C is consistent with the data in the area C to be written, if not, judging whether a minor version number in the read data in the area C reaches the maximum value, if not, keeping the current major version number, only upgrading and updating the minor version number, if so, judging the current production stage according to the major version number in the read data in the area C, updating the major version number to the major version number of the next stage, updating the minor version number to 001 and then writing the 001 into a memory in a controller, on one hand, the design adopts the combination mode of the area A, the area B and the area C to the data version number, can meet the storage and reading requirements of different scenes, and enables the whole life cycle to trace the data version more conveniently, on the other hand, the design adopts a mode of respectively upgrading the major version number and the minor version number, realizes the automatic upgrading of the data version number, remarkably reduces the problems of software and hardware mismatching, bottom layer software mismatching with application layer software and the like in the software iteration and updating processes, improves the matching accuracy and upgrading efficiency, and does not increase the hardware cost. Therefore, the invention not only can meet the storage and reading requirements of different scenes, but also realizes the automatic upgrade of the data version number without increasing the hardware cost, and improves the accuracy and efficiency of the upgrade.
2. The invention relates to a method for upgrading version numbers of automobile electric control pieces, which can read application layer software version number data and calibration data version number data in the current electric control piece data version numbers in a mode of acquiring a whole automobile message, and the method for sending the whole automobile message comprises the following steps: if a version number reading request sent in a physical addressing mode is received, a controller of the appointed ID sends a data version number to the CAN bus in a periodic message mode, and at the moment, the bus load rate is low; if a version number reading request sent in a function addressing mode is received, all the controllers send the data version number to the CAN bus, so that the version numbers of all the controllers CAN be conveniently obtained; if the controller fails, whether the request is made or not, the data version number needs to be sent to the CAN bus, reading equipment does not need to be used in the mode, and the controller directly sends the version number in a failure state, so that the failure of the whole vehicle is checked. Therefore, the invention does not need to use reading equipment and is beneficial to troubleshooting the faults of the whole vehicle.
Drawings
FIG. 1 is an overall flow chart of the present invention.
Fig. 2 is a structural diagram of the version number of the software of the electronic control system.
Fig. 3 is a flowchart of reading the current electrical control data version number in embodiment 1.
Fig. 4 is a flowchart of a method for sending a vehicle message in embodiment 2.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a method for upgrading a version number of an automotive electronic control part sequentially includes the following steps:
s1, generating an electronic control piece data version number according to the electronic control system and the ECU part number, wherein the electronic control piece data version number comprises an electronic control system software version number, the electronic control system software version number is composed of data of an area A, an area B and an area C, the data of the area A is an abbreviation of the electronic control system, the data of the area B is the ECU part number, the data of the area C comprises a version identifier, a main version number and a minor version number, and the initial values of the main version number and the minor version number are 001;
s2, after the upgrading program is started, reading data of an area A, an area B and an area C in the current electric control piece data version number;
s3, updating the data in the area A and the area B into new data for flash writing;
s4, judging whether the read C area data is consistent with the C area data to be written, if so, not upgrading, and if not, entering the step S5;
s5, judging whether the minor version number in the read C-area data reaches the maximum value, if so, entering step S6, if not, keeping the current major version number, judging whether software is upgraded, if so, writing the current minor version number +001 into a memory in the controller, and if not, keeping the current minor version number;
s6, judging whether the current production stage is an ET stage or not according to the main version number in the read C area data, if so, updating the main version number to PT, updating the minor version number to 001, and then writing the PT into a memory in the controller, otherwise, entering S7;
s7, judging whether the current production stage is a PT stage or not according to the main version number in the read C area data, if so, updating the main version number to SOP, updating the minor version number to 001, and then writing the updated minor version number into a memory in the controller, otherwise, entering S8;
and S8, judging that the major version number is SOP, updating the minor version number to 001, and writing the minor version number into a memory in the controller.
In steps S5-S8, the memory in the write controller refers to: and writing the data of the area A, the area B and the area C into a memory based on a CAN network and according to a UDS protocol.
The writing mode of the memory is as follows:
DID 1: region A identifier
DID 2: b area identifier
DID 3: c area identifier
DID 4: hardware version number
DID 5: the underlying software version number.
The step S2 is based on the CAN network and reads the data in the area a, the area B, and the area C in the current electrical control data version number according to the UDS protocol, and sequentially includes the following steps:
s2-1, opening a default session mode;
s2-2, opening an extended session mode;
s2-3, judging whether the DID is F195, if so, reading the data in the C area, and if not, entering the step S2-4;
s2-4, judging whether the DID is F187, if yes, reading the data in the B area, if not, entering the step S2-5;
and S2-5, judging whether the DID is F197, if so, reading the data in the area A, and if not, ending the reading.
In the version number of the software of the electric control system, the data in the area C comprises application program version number data and calibration data version number data, the application program version number data comprises data in the area B, an application program version identifier, a main version number and a minor version number, and the calibration data version number data comprises data in the area B, a calibration data version identifier, a main version number and a minor version number.
Step S2 is to read the application layer software version number data and the calibration data version number data in the current electronic control element data version number by obtaining the entire vehicle message, and the entire vehicle message sending method sequentially includes the following steps:
s2.1, if the controller receives a data version number request instruction, the step S2.2 is entered, and if the controller breaks down, the fault controller sends the data version number to the CAN bus;
s2.2, judging whether the request instruction is sent in a physical addressing mode or a functional addressing mode according to the ID sending the request instruction, if the request instruction is in the physical addressing mode, the controller appointing the ID sends a data version number to the CAN bus in a periodic message mode, and if the request instruction is in the functional addressing mode, entering S2.3;
s2.3, circularly detecting the bus load rate until the bus load rate is less than or equal to C;
and S2.4, all the controllers send the data version number to the CAN bus in a message mode.
The electronic control data version number further comprises at least one of an application program version number, a calibration data version number, a hardware version number and a bottom layer software version number.
The hardware version number is composed of a hardware version identifier and a version number, the bottom layer software version number is composed of a bottom layer software version identifier and a version number, and the initial values of the version numbers in the hardware version number and the bottom layer software version number are 001.
Example 1:
referring to fig. 1 to 3, a version number upgrading method for an automobile electronic control part sequentially comprises the following steps:
s1, generating an electronic control data version number according to the electronic control system and the ECU part number, wherein the electronic control data version number comprises an electronic control system software version number, a hardware version number and a bottom layer software version number, the electronic control system software version number is composed of data in an area A, an area B and an area C, the data in the area A is an abbreviation of the electronic control system, the data in the area B is the ECU part number, the data in the area C comprises application program version number data and calibration data version number data, the application program version number data is composed of data in the area B, an application program version identifier S, a main version number and a sub-version number, the calibration data version number data is composed of data in the area B, a calibration data version identifier C, a main version number and a sub-version number, the hardware version number is composed of a hardware version identifier H and a version number, and the bottom layer, the initial values of the version numbers in the major version number, the minor version number, the hardware version number and the bottom layer software version number are 001;
s2, after the upgrading program is started, reading data of an area A, an area B and an area C in the data version number of the current electric control based on the CAN network and according to the UDS protocol, and specifically comprising the following steps:
s2-1, opening a default session mode;
s2-2, opening an extended session mode;
s2-3, judging whether the DID is F195, if so, reading the data in the C area, and if not, entering the step S2-4;
s2-4, judging whether the DID is F187, if yes, reading the data in the B area, if not, entering the step S2-5;
s2-5, judging whether the DID is F197, if so, reading the data in the area A, and if not, ending the reading;
s3, updating the data in the area A and the area B into new data for flash writing;
s4, judging whether the read C area data is consistent with the C area data to be written, if so, not upgrading, and if not, entering the step S5;
s5, judging whether the minor version number in the read C-area data reaches the maximum value, if so, entering step S6, if not, keeping the current major version number, judging whether software is upgraded, if so, writing the current minor version number +001 into a memory in the controller, and if not, keeping the current minor version number;
s6, judging whether the current production stage is an ET stage or not according to the main version number in the read C area data, if so, updating the main version number to PT, updating the minor version number to 001, and then writing the PT into a memory in the controller, otherwise, entering S7;
s7, judging whether the current production stage is a PT stage or not according to the main version number in the read C area data, if so, updating the main version number to SOP, updating the minor version number to 001, and then writing the updated minor version number into a memory in the controller, otherwise, entering S8;
s8, judging that the major version number is SOP, updating the minor version number to 001, and writing the minor version number into a memory in the controller;
in the steps S5-S8, the writing to the memory in the controller means: based on CAN network and according to UDS protocol, writing version number data into memory, the specific writing mode is:
DID 1: region A identifier
DID 2: b area identifier
DID 3: c area identifier
DID 4: hardware version number
DID 5: the underlying software version number.
Example 2:
the difference from example 1 is that:
referring to fig. 4, in the step S2, the application layer software version number data and the calibration data version number data in the current electronic control piece data version number are read in a manner of acquiring a complete vehicle message, and the sending method of the complete vehicle message is sequentially performed according to the following steps:
s2.1, if the controller receives a data version number request instruction, the step S2.2 is entered, and if the controller breaks down, the fault controller sends the data version number to the CAN bus;
s2.2, judging whether the request instruction is sent in a physical addressing mode or a functional addressing mode according to the ID sending the request instruction, if the request instruction is in the physical addressing mode, the controller appointing the ID sends a data version number to the CAN bus in a periodic message mode, and if the request instruction is in the functional addressing mode, entering S2.3;
s2.3, circularly detecting the bus load rate until the bus load rate is less than or equal to C;
s2.4, all controllers send the data version number to the CAN bus in a message mode, at the moment, the controllers send the software version to the CAN bus through a plurality of IDs, wherein the IDs refer to the J1939 protocol specification, and the mode of sending the version number to the CAN bus is as follows:
ID1：SXXX.YYY
ID2：CXXX.YYY。
Claims (8)
1. a version number upgrading method for an automobile electric control part is characterized by comprising the following steps:
the upgrading method sequentially comprises the following steps:
s1, generating an electronic control piece data version number according to the electronic control system and the ECU part number, wherein the electronic control piece data version number comprises an electronic control system software version number, the electronic control system software version number is composed of data of an area A, an area B and an area C, the data of the area A is an abbreviation of the electronic control system, the data of the area B is the ECU part number, the data of the area C comprises a version identifier, a main version number and a sub-version number, and the initial values of the main version number and the sub-version number are 001;
s2, after the upgrading program is started, reading data of an area A, an area B and an area C in the current electric control piece data version number;
s3, updating the data in the area A and the area B into new data for flash writing;
s4, judging whether the read C area data is consistent with the C area data to be written, if so, not upgrading, and if not, entering the step S5;
s5, judging whether the minor version number in the read C-area data reaches the maximum value, if so, entering step S6, if not, keeping the current major version number, judging whether software is upgraded, if so, writing the current minor version number +001 into a memory in the controller, and if not, keeping the current minor version number;
s6, judging whether the current production stage is an ET stage or not according to the main version number in the read C area data, if so, updating the main version number to PT, updating the minor version number to 001, and then writing the PT into a memory in the controller, otherwise, entering S7;
s7, judging whether the current production stage is a PT stage or not according to the main version number in the read C area data, if so, updating the main version number to SOP, updating the minor version number to 001, and then writing the updated minor version number into a memory in the controller, otherwise, entering S8;
and S8, judging that the major version number is SOP, updating the minor version number to 001, and writing the minor version number into a memory in the controller.
2. The method for upgrading the version number of the electric control part of the automobile according to claim 1, wherein the method comprises the following steps:
in steps S5-S8, the memory in the write controller refers to: and writing the data of the area A, the area B and the area C into a memory based on a CAN network and according to a UDS protocol.
3. The method for upgrading the version number of the electric control part of the automobile according to claim 2, wherein the method comprises the following steps:
the writing mode of the memory is as follows:
DID 1: region A identifier
DID 2: b area identifier
DID 3: c area identifier
DID 4: hardware version number
DID 5: the underlying software version number.
4. The method for upgrading the version number of the electric control part of the automobile according to claim 3, wherein the method comprises the following steps:
the step S2 is based on the CAN network and reads the data in the area a, the area B, and the area C in the current electrical control data version number according to the UDS protocol, and sequentially includes the following steps:
s2-1, opening a default session mode;
s2-2, opening an extended session mode;
s2-3, judging whether the DID is F195, if so, reading the data in the C area, and if not, entering the step S2-4;
s2-4, judging whether the DID is F187, if yes, reading the data in the B area, if not, entering the step S2-5;
and S2-5, judging whether the DID is F197, if so, reading the data in the area A, and if not, ending the reading.
5. The method for upgrading the version number of the electric control part of the automobile according to any one of claims 1 to 4, wherein the method comprises the following steps: in the version number of the software of the electric control system, the data in the area C comprises application program version number data and calibration data version number data, the application program version number data comprises data in the area B, an application program version identifier, a main version number and a minor version number, and the calibration data version number data comprises data in the area B, a calibration data version identifier, a main version number and a minor version number.
6. The method for upgrading the version number of the electric control part of the automobile according to claim 5, wherein the method comprises the following steps:
step S2 is to read the application layer software version number data and the calibration data version number data in the current electronic control element data version number by obtaining the entire vehicle message, and the entire vehicle message sending method sequentially includes the following steps:
s2.1, if the controller receives a data version number request instruction, the step S2.2 is entered, and if the controller breaks down, the fault controller sends the data version number to the CAN bus;
s2.2, judging whether the request instruction is sent in a physical addressing mode or a functional addressing mode according to the ID sending the request instruction, if the request instruction is in the physical addressing mode, the controller appointing the ID sends a data version number to the CAN bus in a periodic message mode, and if the request instruction is in the functional addressing mode, entering S2.3;
s2.3, circularly detecting the bus load rate until the bus load rate is less than or equal to C;
and S2.4, all the controllers send the data version number to the CAN bus in a message mode.
7. The method for upgrading the version number of the electric control part of the automobile according to any one of claims 1 to 4, wherein the method comprises the following steps: the electronic control data version number further comprises at least one of an application program version number, a calibration data version number, a hardware version number and a bottom layer software version number.
8. The method for upgrading the version number of the electric control part of the automobile according to claim 7, wherein the method comprises the following steps: the hardware version number is composed of a hardware version identifier and a version number, the bottom layer software version number is composed of a bottom layer software version identifier and a version number, and the initial values of the version numbers in the hardware version number and the bottom layer software version number are 001.
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| CN115599437A (en) * | 2022-10-26 | 2023-01-13 | 北京领雁科技股份有限公司（Cn） | Software version processing method and device, electronic equipment and storage medium |
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