CN114399316A - Method and system for realizing finished automobile configuration data - Google Patents
Method and system for realizing finished automobile configuration data Download PDFInfo
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- CN114399316A CN114399316A CN202210043325.2A CN202210043325A CN114399316A CN 114399316 A CN114399316 A CN 114399316A CN 202210043325 A CN202210043325 A CN 202210043325A CN 114399316 A CN114399316 A CN 114399316A
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Abstract
The invention relates to a method and a system for realizing finished automobile configuration data, wherein the method and the system for realizing the finished automobile configuration data comprise the following steps: coding the actual functional configuration of the vehicle to generate a configuration database of a single whole vehicle; establishing screening logic between function configuration and configuration words, coding the logic, and generating a configuration logic database; and the single finished automobile configuration database and the configuration logic database are written into the finished automobile configuration main node controller in a flashing mode, the finished automobile configuration main node controller analyzes the finished automobile configuration data to form finished automobile configuration parameters, and the analyzed parameters are broadcasted to a bus for each configuration slave node controller to receive and use. Compared with the prior art, the method has the advantages of more flexible pre-sale and post-sale vehicle configuration definition, realization of online management, high safety level, realization of after-sale software function purchase under the background of software defined automobile times and the like.
Description
Technical Field
The invention relates to the technical field of vehicle configuration, in particular to a method and a system for realizing vehicle configuration data.
Background
With the increasing electronic and electrical functions of modern automobiles, software versions of each electronic control unit (hereinafter referred to as ECU) are increasing, and in order to reduce the software versions and manage vehicle function configuration parameters, a variety of vehicle configuration methods are gradually derived. The currently widely adopted vehicle configuration method is to write the configuration parameters of each electronic control unit into the electronic control unit in a diagnostic data stream mode through reading, writing and other services in ISO 14229-1 road vehicle-unified diagnostic service. The equipment and implementation environment for writing configuration parameters to be used are as follows: the system comprises a server, an automobile electric control module, signal conversion equipment, a diagnosis joint, a wiring harness and a 12V power supply, and is shown in figure 1.
The flow when the device shown in fig. 1 is used to configure parameters is shown in fig. 2, and includes:
firstly, a server is connected with an electric control module, and system initialization is completed;
step two: pre-write sequences (defined by the requirements formulator; e.g.: software version collection, part number collection);
step three: the electronic control module enters an expansion mode;
step IV: writing a process instruction;
step five: resetting;
step (c): it is confirmed whether the writing is successful.
The configuration method provides a configuration word writing process based on diagnostic service for the electric control unit, although the software version of the electric control unit is effectively reduced, and the software development and management cost of the electric control unit is reduced, the flexibility of vehicle configuration is not high, and the online management of a production management system cannot be realized. For example, a vehicle for testing which is delivered off line needs to be opened for remote control parking, the remote control parking function involves an engine management module, an electronic stability control module and a parking auxiliary module, configuration words need to be rewritten into the three modules respectively, and the whole process is complicated and very inflexible. In addition, the vehicle which is delivered to the hands of the customer off line cannot modify the functional configuration through the cloud server, the customer must drive to the after-sale 4S store for processing, and the after-sale configuration is inconvenient to update.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method and a system for realizing vehicle configuration data, which support the after-sale software function purchase, more flexible pre-sale and after-sale vehicle configuration definition, realize on-line management and have high safety level.
The purpose of the invention can be realized by the following technical scheme:
a method for realizing finished automobile configuration data comprises the following steps:
step 1: coding the actual functional configuration of the vehicle to generate a configuration database of a single whole vehicle;
step 2: establishing screening logic between function configuration and configuration words, coding the logic, and generating a configuration logic database;
and step 3: and the single finished automobile configuration database and the configuration logic database are written into the finished automobile configuration main node controller in a flashing mode, the finished automobile configuration main node controller analyzes the finished automobile configuration data to form finished automobile configuration parameters, and the analyzed parameters are broadcasted to a bus for each configuration slave node controller to receive and use.
Preferably, the step 1 specifically comprises:
and coding all functions of the vehicle, setting corresponding code definitions for each independent function, and including corresponding codes of all functions which can be realized by the current vehicle in the vehicle configuration database.
Preferably, the step 2 specifically comprises:
firstly, constructing a mapping relation between function configuration and configuration words to form configuration logic;
and secondly, coding the configuration logic statements of the configuration parameters to generate a configuration logic database.
Preferably, the encoding modes in step 1 and step 2 are both 16-ary encoding.
Preferably, in the step 3, the single vehicle configuration database and the configuration logic database are written into the vehicle configuration master node controller by the write-through device supporting the UDS diagnostic service function.
Preferably, in the step 3, a protection level including security unlocking and software signature verification is set in the process of writing the single vehicle configuration database and the configuration logic database into the vehicle configuration main node controller.
Preferably, the method for implementing vehicle configuration data further includes:
if the functional configuration of the vehicle needs to be changed, after a new logic database and a new configuration database are determined, the new configuration database and the new logic database are written into the whole vehicle configuration main node controller through the writing device supporting the UDS diagnostic service function, the whole vehicle configuration main node controller analyzes to form a whole vehicle configuration parameter, and the parameter at the analyzed position is broadcasted to the bus for each configuration slave node controller to receive and use, so that the functional configuration of the vehicle is updated.
A system for realizing finished automobile configuration data comprises:
the vehicle function configuration coding module is used for coding the actual function configuration of the vehicle to generate a configuration database of a single whole vehicle;
the screening logic generation module is used for establishing screening logic between the functional configuration and the configuration words and generating a configuration logic statement;
the configuration logic coding module is used for coding the configuration logic statement to generate a configuration logic database;
the device supports a UDS diagnostic service function and is used for flashing the configuration database and the configuration logic database to the finished automobile configuration main node controller;
the whole vehicle configuration master node controller is used for analyzing the configuration database and the configuration logic database to obtain whole vehicle configuration parameters, and broadcasting the configuration parameters to the bus for receiving and using by the configuration slave node controller;
the slave node controller is configured.
Preferably, the process of the flash device flashing the single vehicle configuration database and the configuration logic database into the vehicle configuration master node controller is provided with a protection level including security unlocking and software signature verification.
Preferably, the vehicle function configuration coding module and the configuration logic coding module both adopt 16-system codes.
Compared with the prior art, the invention has the following beneficial effects:
one, supporting after-sale software function purchase: according to the method and the system for realizing the finished automobile configuration data, a vehicle is sold to a customer, the customer can purchase new functional software after sale, the after-sale system can modify the configuration database of the vehicle of the customer to open the purchased functions, the new configuration database and the logic database are rewritten to the finished automobile configuration main node controller through an OTA (over the air) technology, the finished automobile configuration main node controller broadcasts the modified functional configuration parameters to the bus, and the software definition of after-sale software function purchase under the background of the automobile era is realized.
Second, both pre-sale and post-sale vehicle configuration definitions are more flexible: the method and the system for realizing the finished automobile configuration data adopt the idea of configuring the database, can realize one configuration database for each automobile, namely each automobile has independent and unique function configuration, and the configuration is very flexible.
Thirdly, realizing online management: the method and the system for realizing the whole vehicle configuration data have the advantages that the configuration database of each vehicle is generated by offline equipment in a factory production line, and is recorded and stored in an equipment system for unified management and tracing, so that the online management of the vehicle function configuration is realized.
Fourthly, the safety level is high: compared with a point-to-point configuration word writing method, the whole vehicle configuration data implementation method and system provided by the invention have higher security, the software writing method needs to pass a security unlocking and software signature verification protection level, and the point-to-point configuration word writing method generally only has the security unlocking protection level.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle configuration data implementation device in the prior art;
FIG. 2 is a schematic flow chart of a vehicle configuration data implementation method in the prior art;
FIG. 3 is a schematic flow chart of a vehicle configuration data implementation method according to the present invention;
fig. 4 is a schematic structural diagram of a vehicle configuration data implementation system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
A method for implementing vehicle configuration data, a flow of which is shown in fig. 3, includes:
step 1: coding the actual functional configuration of the vehicle to generate a configuration database of a single whole vehicle;
the method specifically comprises the following steps:
coding all functions of the vehicle, setting corresponding code definitions for each independent function, and enabling the whole vehicle configuration database to contain corresponding codes of all functions which can be realized by the current vehicle;
step 2: establishing screening logic between function configuration and configuration words, coding the logic, and generating a configuration logic database;
the method specifically comprises the following steps:
firstly, constructing a mapping relation between function configuration and configuration words to form configuration logic;
secondly, encoding the configuration logic statements of each configuration parameter to generate a configuration logic database;
in this embodiment, the encoding modes in step 1 and step 2 are both 16-ary encoding;
and step 3: and the single finished automobile configuration database and the configuration logic database are written into the finished automobile configuration main node controller in a flashing mode, the finished automobile configuration main node controller analyzes the finished automobile configuration data to form finished automobile configuration parameters, and the analyzed parameters are broadcasted to a bus for each configuration slave node controller to receive and use.
The present embodiment flushes a single entire vehicle configuration database and configuration logic database to the entire vehicle configuration master node controller through a flush device that supports the UDS Diagnostic service function (Unified Diagnostic Services). A protection level including safety unlocking and software signature verification is arranged in the process of writing the single vehicle configuration database and the configuration logic database into the vehicle configuration main node controller.
If the functional configuration of the vehicle needs to be changed, after a new logic database and a new configuration database are determined, the new configuration database and the new logic database are written into a whole vehicle configuration main node controller through a writing device supporting the UDS diagnostic service function, the whole vehicle configuration main node controller analyzes to form a whole vehicle configuration parameter, and the analyzed parameter is broadcasted to a bus for each configuration slave node controller to receive and use, so that the functional configuration of the vehicle is updated.
The present embodiment further relates to a system for implementing vehicle configuration data, the structure of which is shown in fig. 4, and the system includes:
the vehicle function configuration coding module is used for coding the actual function configuration of the vehicle to generate a configuration database of a single whole vehicle;
the screening logic generation module is used for establishing screening logic between the functional configuration and the configuration words and generating a configuration logic statement;
the configuration logic coding module is used for coding the configuration logic statement to generate a configuration logic database;
the device supports a UDS diagnostic service function and is used for flashing the configuration database and the configuration logic database to the finished automobile configuration main node controller;
the whole vehicle configuration master node controller is used for analyzing the configuration database and the configuration logic database to obtain whole vehicle configuration parameters, and broadcasting the configuration parameters to the bus for receiving and using by the configuration slave node controller;
the slave node controllers, i.e., the respective ECU controllers in the vehicle, are configured.
The process that the single vehicle configuration database and the single configuration logic database are written into the vehicle configuration main node controller by the writing equipment is provided with a protection level including safety unlocking and software signature verification.
The vehicle function configuration coding module and the configuration logic coding module both adopt 16-system codes.
It should be noted that the flash device in this embodiment may use a diagnostic apparatus, an offline device, or an over-the-air server OTAServer, and the flash device may still use the diagnostic apparatus or the offline device to perform flash when the whole vehicle is offline. After the vehicle is sold to a customer, an over-the-air server OTAServer can be adopted when software is remotely upgraded, an after-sale system can modify a configuration database of the vehicle of the customer to open the purchased functions, a new configuration database and a new logic database are rewritten to a finished vehicle configuration main node controller through an OTA (over-the-air) technology, and the finished vehicle configuration main node controller broadcasts modified function configuration parameters to a bus to realize after-sale software function purchase under the background of software definition in the automobile era.
The analysis of the configuration parameters can be carried out in the controller of the main node of the whole vehicle configuration, and can also be carried out in an OTA Server of the over-the-air Server.
A specific application example is provided below:
firstly, carrying out 16-system coding on the actual functional configuration of the vehicle to generate a configuration database of a single whole vehicle
For each individual function, there is a corresponding code definition, such as a traffic congestion assistance function, as shown in table 1:
table 1 code definitions corresponding to traffic congestion functions
| Code | Description of |
| Function | |
| 1 Low Profile | Traffic congestion |
| Function | |
| 1 high-order | With traffic congestion assistance |
The definition of the entire vehicle configuration of each vehicle type is a combination of a plurality of functions, such as a luxury configuration of a certain project, and is defined as shown in table 2:
TABLE 2 luxury configuration of a vehicle
| Code | Description of Chinese | |
| Function | ||
| 1 high-order | With traffic congestion | S |
| Function | ||
| 2 Low-grade | Show without external light | S |
| … | … | … |
These function codes are 16-ary coded to generate a configuration database of luxury configurations.
Establishing mapping logic between function configuration and configuration word and coding the mapping logic
Mapping relation needs to be established between function configuration and configuration words to form a platform configuration logic, for example, the external light show function is defined as shown in table 3:
TABLE 3 code definition of exterior light show function
| Code | Description of |
| Function | |
| 2 Low-grade | Show without |
| Function | |
| 2 high-level | External light show |
The configuration parameter number corresponding to the exterior light show is No.1, and the definition of the parameter is shown in Table 4:
TABLE 4 parameter definitions corresponding to exterior light shows
The logic for the established exterior light show function and configuration parameter No.1 is as follows:
if function 2 is high, the value of NO.1 equals 02;
if function 2 is low, the value of NO.1 equals 01.
And carrying out 16-system coding based on the established configuration logic statements of the configuration parameters to generate a configuration logic database.
And thirdly, brushing the single finished automobile configuration database and the configuration logic database into the finished automobile configuration main node, analyzing by the finished automobile configuration main node to form finished automobile configuration parameters, broadcasting the parameters to each sub-network, and finally receiving the parameters by each configuration slave node controller, namely each ECU controller module.
The OTA Server over-the-air download Server or the whole vehicle configuration main node analyzes the formed whole vehicle configuration parameters, when the power state of the whole vehicle is switched to a specific state, the configuration parameters are broadcasted to the network in a pre-defined and solidified data format (in order to ensure that all ECUs can receive the parameters which need to be received by the ECUs, the configuration main node broadcasts the configuration parameters to the network for multiple times), each ECU analyzes according to the same data format, and the parameters which need to be received by the ECUs are stored in the nonvolatile memory of the ECU and are called by layer software.
And fourthly, after receiving the required configuration parameters, each ECU starts to call corresponding software to start working, if the wrong configuration parameters are received, the ECU records the diagnosis fault codes and cannot execute normal functions, and further informs a user of unavailable functions due to faults in modes of alarming and the like.
In this embodiment, a completely new idea of configuring a database is adopted, and a database file is input to the entire vehicle configuration master node in a flash writing manner, so that the entire vehicle configuration master node broadcasts a configuration parameter signal after settlement to the bus, thereby implementing the management of the entire vehicle function configuration parameter. With the increasing maturity of the technology of the car software OTA (over the air), the whole car configuration main node in the invention settles the configuration parameters of the whole car according to the configuration database and the logic database, the part of work can be realized on line, namely in an OTA Server (over the air download Server), and the whole car configuration main node directly receives the whole car configuration parameters sent by the OTA Server and then broadcasts the parameters to the bus. Therefore, the software complexity of the main node of the whole vehicle configuration is greatly reduced, and the real-time performance of configuration implementation is really realized by the change issuing process of logic database software.
Compared with a configuration writing mode based on a diagnosis service, the method and the system for realizing the vehicle configuration data have the following advantages:
(1) the vehicle function configuration is flexible, each vehicle has an independent configuration database, and the configuration can be flexibly defined;
(2) the vehicle configuration realizes on-line management, and the configuration database of each vehicle is generated by off-line equipment in a factory production line and is recorded and stored in an equipment system for unified management and tracing;
(3) after-sale software function purchase under the background of the software-defined automobile age is realized;
(4) the information security level of the configured ECU is improved.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for realizing finished automobile configuration data is characterized in that the method and the system for realizing the finished automobile configuration data comprise the following steps:
step 1: coding the actual functional configuration of the vehicle to generate a configuration database of a single whole vehicle;
step 2: establishing screening logic between function configuration and configuration words, coding the logic, and generating a configuration logic database;
and step 3: and the single finished automobile configuration database and the configuration logic database are written into the finished automobile configuration main node controller in a flashing mode, the finished automobile configuration main node controller analyzes the finished automobile configuration data to form finished automobile configuration parameters, and the analyzed parameters are broadcasted to a bus for each configuration slave node controller to receive and use.
2. The method for realizing the vehicle configuration data according to claim 1, wherein the step 1 specifically comprises:
and coding all functions of the vehicle, setting corresponding code definitions for each independent function, and including corresponding codes of all functions which can be realized by the current vehicle in the vehicle configuration database.
3. The method for implementing the vehicle configuration data according to claim 1, wherein the step 2 is specifically as follows:
firstly, constructing a mapping relation between function configuration and configuration words to form configuration logic;
and secondly, coding the configuration logic statements of the configuration parameters to generate a configuration logic database.
4. The method for realizing the vehicle configuration data according to claim 1, wherein the coding modes in the step 1 and the step 2 are both 16-system codes.
5. The vehicle configuration data implementation method according to claim 1, wherein in step 3, a single vehicle configuration database and a single configuration logic database are written into the vehicle configuration master node controller by a write-through device supporting the UDS diagnostic service function.
6. The vehicle configuration data implementation method according to claim 1, wherein the step 3 of flashing the single vehicle configuration database and the configuration logic database into the vehicle configuration master node controller is provided with a protection level including security unlocking and software signature verification.
7. The vehicle configuration data implementation method according to claim 1, wherein the vehicle configuration data implementation method further comprises:
if the configuration database of the vehicle needs to be changed, after the new logic database and the new configuration data are determined, the new configuration database and the new logic database are written into the whole vehicle configuration main node controller through the writing equipment supporting the UDS diagnostic service function, the whole vehicle configuration main node controller analyzes to form a whole vehicle configuration parameter, and the analyzed parameter is broadcasted to the bus for each configuration slave node controller to receive and use, so that the configuration database is updated.
8. The system for realizing the configuration data of the whole vehicle is characterized by comprising the following components:
the vehicle function configuration coding module is used for coding the actual function configuration of the vehicle to generate a configuration database of a single whole vehicle;
the screening logic generation module is used for establishing screening logic between the functional configuration and the configuration words and generating a configuration logic statement;
the configuration logic coding module is used for coding the configuration logic statement to generate a configuration logic database;
the device supports a UDS diagnostic service function and is used for flashing the configuration database and the configuration logic database to the finished automobile configuration main node controller;
the whole vehicle configuration master node controller is used for analyzing the configuration database and the configuration logic database to obtain whole vehicle configuration parameters, and broadcasting the configuration parameters to the bus for the configuration slave node controller to receive and use;
the slave node controller is configured.
9. The system according to claim 8, wherein the process of the flash device flashing the single vehicle configuration database and the configuration logic database into the vehicle configuration master node controller is provided with a protection level including security unlocking and software signature verification.
10. The vehicle configuration data implementation system of claim 8, wherein the vehicle function configuration code module and the configuration logic code module are both 16-ary code.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115484299A (en) * | 2022-09-09 | 2022-12-16 | 中国第一汽车股份有限公司 | Whole vehicle global configuration method, device, equipment and medium |
| CN116954694A (en) * | 2023-06-29 | 2023-10-27 | 广州汽车集团股份有限公司 | Method, device, equipment and storage medium for activating vehicle-mounted software function |
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2022
- 2022-01-14 CN CN202210043325.2A patent/CN114399316A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115484299A (en) * | 2022-09-09 | 2022-12-16 | 中国第一汽车股份有限公司 | Whole vehicle global configuration method, device, equipment and medium |
| CN116954694A (en) * | 2023-06-29 | 2023-10-27 | 广州汽车集团股份有限公司 | Method, device, equipment and storage medium for activating vehicle-mounted software function |
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