CN114967641A - A method and system for automatic testing of vehicle controller diagnostic function - Google Patents

Abstract

The invention discloses an automatic test method and system for a vehicle controller diagnosis function, belonging to the technical field of automobile electrical test, wherein the method comprises the steps of compiling a controller diagnosis automatic test configuration file according to a diagnosis standard file input by a controller; connecting the tested controller to a diagnosis automatic test system; configuring diagnostic layer information and transmission layer information of a tested controller on a diagnostic function interface of automatic test software; configuring a diagnosis test script and other test information on a test function interface of the automatic test software, selecting a diagnosis test item to be executed, and then executing a test function; when the test is started, inputting a configuration file path of the tested controller in a pop-up window, and then carrying out a diagnosis automatic test; the testing method and the testing system can realize reliable and stable automatic testing of the vehicle controller diagnosis function, are simple to operate and effectively save the human input cost.

Description

A method and system for automatic testing of vehicle controller diagnostic function

technical field

The invention belongs to the technical field of automobile electrical testing, and in particular relates to an automatic testing method and system for the diagnosis function of a vehicle controller.

Background technique

At present, the diagnostic functions of the vehicle controllers of various domestic OEMs are developed after revisions on the ISO14229 standard, and different models of the same OEM and different controllers of the same model have different requirements for the diagnostic function, which leads to There are differences in the diagnostic functions of the controllers, which makes it more difficult to automate the testing of the controller diagnostic functions. In order to solve the problem of the differences in the diagnostic tests, most of the diagnostic automated test systems in the industry need to modify the test source program before the test. Frequent modification affects the stability of the test system, reduces the accuracy and reliability of the test results, and also increases the application difficulty and labor cost of the test system, which ultimately leads to inconvenience in the application of the test system, and reduces the efficiency of diagnostic tests. The final choice to perform diagnostic tests manually increases the labor cost of test execution.

The prior art discloses an automated diagnostic testing method based on a VT system, comprising the following steps: step S10, building a VT system test environment for testing an ECU control system; step S20, building a test environment corresponding to the VT system The simulation model; step S30, based on the test case in the simulation model, perform fault diagnosis on the ECU control system, and generate a test report. The test method is to use CANoe-Diva and vTESTstudio software to convert the DBC file and the diagnostic CDD file into an automated test script, and then combine the VT system to realize the automated test of the controller's diagnostic function.

However, this automated diagnostic test method uses CANoe-Diva and vTESTstudio software to edit or convert automated test scripts, and is limited to the use of VT system hardware devices, because different controllers under test need to change the automated test script source program.

SUMMARY OF THE INVENTION

In order to solve the existing problem that the test source program needs to be modified before the test, and the frequent modification of the source program affects the stability of the test system and reduces the accuracy and reliability of the test result, the present invention provides a vehicle controller diagnosis The automatic test method and system for functions, the test system and the test method of the present invention are suitable for all controller diagnostic tests developed on the basis of ISO14229 standard, and there is no need to modify the automatic test system program source code when performing diagnostic tests on each controller , just according to the difference items of each controller diagnostic test, correspondingly modify the controller test configuration file, the automatic test of the controller diagnostic function can be carried out, which saves the cost and improves the quality of the diagnostic test.

The present invention is achieved through the following technical solutions:

In a first aspect, the present invention provides an automated testing method for the diagnostic function of a vehicle controller, which specifically includes the following steps:

Step 1: Write a controller diagnostic automated test configuration file according to the diagnostic specification file input by the controller;

Step 2: Connect the controller under test to the diagnostic automated test system;

Step 3: Configure the diagnostic layer information and transport layer information of the controller under test on the diagnostic function interface of the automated test software;

Step 4: Configure the diagnostic test script and other test information on the test function interface of the automated test software, select the diagnostic test item to be executed, and then execute the test function;

Step 5: At the beginning of the test, input the configuration file path of the controller under test in the pop-up window, and then carry out the diagnostic automation test.

Further, the configuration file described in step 1 is an .INI format file, which can be edited, and the content is written in a unified format, which is used to record the differentiated information of the controller under test, and the information therein is read by the test script.

Further, the automated test software described in step 3 is CANoe software, and the test script of CANoe software is written in XML and CAPL language, which can automatically read the configuration file of the controller under test and identify the difference points, which are used to control the power supply equipment and make the The test controller switches power modes and performs specific diagnostic automated tests.

Further, the XML file is the interface file between the CANoe software and the CAPL test script, and the CAPL test script is the main program of the diagnostic automation test, used to read the controller configuration file under test, control the test execution and hardware equipment, and store the test. Log and test report.

Further, the CAPL test script needs to be encrypted.

Further, step 5 also includes:

(1) Read the information of the controller under test according to the input path of the configuration file of the controller under test;

(2), set the power supply equipment resources;

(3), set the test log file and test report save path;

(4), turn on the power supply and vehicle speed signal simulation function;

(5), supply power to the controller under test, and switch the power mode of the controller under test;

(6) Check whether the configuration information of the controller under test is correct;

(7) Set the configuration code of the controller under test and the necessary information for the VIN diagnostic test;

(8) Execute specific diagnostic test items and enable the test Log recording function;

Further, the power supply equipment is a VT system or a program-controlled power supply hardware.

In a second aspect, the present invention provides an automated testing system for the diagnosis function of a vehicle controller, including:

Electronic equipment, storing and calling automated test software;

Power supply device, used to power the controller under test.

Further, the power supply device can provide 12V power supply, and is provided with a programmable interface, such as a GPIB interface or a .DLL power supply control interface, and the test script can call the programmable interface to control the device to switch the power supply mode of the controller under test.

Further, the electronic device includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor implements any one of the above when executing the computer program. An automated testing method for vehicle controller diagnostic functions.

Compared with the prior art, the advantages of the present invention are as follows:

The automatic testing method and system for the diagnosis function of the vehicle controller of the present invention can realize reliable and stable automatic testing of the diagnosis function of the vehicle controller, and the operation is simple, and the labor input cost is effectively saved.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the specific embodiments or the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

FIG. 1 is a schematic flowchart of an automated testing method for a diagnostic function of a vehicle controller according to the present invention;

2 is a system block diagram of an automated testing system for a vehicle controller diagnostic function of the present invention;

FIG. 3 is a schematic diagram of the structural principle of an electronic device.

Detailed ways

In order to clearly and completely describe the technical solution of the present invention and its specific working process, with reference to the accompanying drawings, the specific embodiments of the present invention are as follows:

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Example 1

As shown in FIG. 1 , the present embodiment provides an automated testing method for the diagnosis function of a vehicle controller, which specifically includes the following steps:

Step 1: Write a controller diagnostic automated test configuration file according to the diagnostic specification file input by the controller;

Step 2: Connect the controller under test to the diagnostic automated test system;

Step 3: Configure the diagnostic layer information and transport layer information of the controller under test on the diagnostic function interface of the automated test software;

Step 4: Configure the diagnostic test script and other test information on the test function interface of the automated test software, select the diagnostic test item to be executed, and then execute the test function;

Step 5: At the beginning of the test, input the configuration file path of the controller under test in the pop-up window, and then carry out the diagnostic automation test.

In this embodiment, the configuration file described in step 1 is an .INI format file, which can be edited, and the content is written in a uniform format, which is used to record the differentiated information of the controller under test, and the information therein is read by the test script.

In this embodiment, the automated test software described in step 3 is CANoe software. Before the test starts, the diagnostic layer information and transport layer information of the controller under test need to be configured in the software, and then the test function of the CANoe software is used to call the diagnostic test script to realize Automated test of controller diagnostic function; CANoe software test script is written in XML and CAPL language, which can automatically read the configuration file of the controller under test and identify the difference points, which are used to control the power supply equipment and make the controller under test switch the power mode , to perform specific diagnostic automated tests.

In this embodiment, the XML file is the interface file between the CANoe software and the CAPL test script, and the CAPL test script is the main program of the diagnostic automation test, used to read the configuration file of the controller under test, and control the test execution and hardware equipment. , store the test log and test report. In order to ensure that the CAPL test script cannot be easily modified, the CAPL test script must be encrypted after it is written. The subsequent operation of the diagnostic automated test system only needs to use the test script to encrypt the file and the controller configuration file, and can execute different tests without the test script source program. Diagnostic automation test of the controller.

In this embodiment, step 5 also includes:

(1) Read the information of the controller under test according to the input path of the configuration file of the controller under test;

(2), set the power supply equipment resources;

(3), set the test log file and test report save path;

(4), turn on the power supply and vehicle speed signal simulation function;

(5), supply power to the controller under test, and switch the power mode of the controller under test;

(6) Check whether the configuration information of the controller under test is correct;

(7) Set the configuration code of the controller under test and the necessary information for the VIN diagnostic test;

(8) Execute specific diagnostic test items and enable the test Log recording function;

In this embodiment, the power supply device is a VT system or program-controlled power supply hardware.

Example 2

As shown in FIG. 2 , the present embodiment provides an automated testing system for the diagnosis function of a vehicle controller, including:

Electronic equipment, storing and calling automated test software;

Power supply device, used to power the controller under test.

In this embodiment, the power supply device can provide 12V power supply, and is provided with a programmable interface, such as a GPIB interface or a .DLL power supply control interface, and the test script can call the programmable interface to control the device to switch the power supply mode of the controller under test.

As shown in FIG. 3 , in this embodiment, the electronic device 3 includes: a memory 31 , a processor (CPU) 32 and a computer program stored on the memory and running on the processor 33. When the processor 32 executes the computer program 33, the automatic testing method for the diagnosis function of a vehicle controller described in any one of the foregoing implementations is implemented.

The control system further includes: a communication interface 35 and a communication bus 34, the processor 32, the communication interface 35, and the memory 31 communicate through the communication bus 34, wherein the communication bus 34 is an industry standard architecture (Industry Standard Architecture, referred to as ISA) bus, Peripheral Component (Peripheral Component, referred to as PCI for short) bus or Extended Industry Standard Architecture (Extended Industry Standard Architecture, referred to as EISA) bus and the like. The bus can be divided into an address bus, a data bus, a control bus, etc., and if the memory 31, the processor 32 and the communication interface 34 are integrated on a single chip, the memory 31, the processor 32 and the communication interface 35 can communicate with each other through the internal interface. communication between.

The processor 32 may also be a specific integrated circuit or multiple integrated circuits.

Specifically, the computer program 33 may include program code, and the program code includes computer operation instructions; the memory 31 is used for storing the computer program 33 . The memory 31 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory; a communication interface 35 for communicating with network elements of other devices such as clients or other servers, etc. .

Example 3

Below in conjunction with specific embodiment, the present invention will be further described:

The diagnostic test method of the body controller is as follows:

1. Write the body controller configuration file:

According to the input file of the controller, fill in the software and hardware version number, part number, VIN and other information of the body controller, and fill in the information such as the differences of each diagnostic service of the body controller;

2. Connect the body controller to the diagnostic automated test system:

Connect the body controller, power supply, CANoe hardware, host computer and other hardware equipment;

3. Configure the diagnostic layer information, transport layer information, and diagnostic automation test script path of the body controller:

(1), in the CANoe software diagnostic function setting interface, configure the body controller diagnostic function addressing message ID, physical addressing message ID, P2, P2* time and other parameters;

(2), configure the XML and CAPL test script paths in the CANoe software test function setting interface;

(3), run the diagnostic automated test system;

4. Run the diagnostic automated test system, enter the path of the body controller configuration file, and execute the diagnostic test.

Any description of a process or method in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing a specified logical function or step of the process , and the scope of the preferred embodiments of the present application includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of the present application belong.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present invention provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (10)

1. An automatic test method for a vehicle controller diagnosis function is characterized by comprising the following steps:

the method comprises the following steps: compiling a controller diagnosis automation test configuration file according to a diagnosis specification file input by a controller;

step two: connecting the tested controller to the diagnosis automatic test system;

step three: configuring diagnostic layer information and transmission layer information of a tested controller on a diagnostic function interface of automatic test software;

step four: configuring a diagnosis test script and other test information on a test function interface of the automatic test software, selecting a diagnosis test item to be executed, and then executing a test function;

step five; when the test is started, the configuration file path of the tested controller is input in the pop-up window, and then the diagnosis automatic test is carried out.

2. The method as claimed in claim 1, wherein the configuration file in step one is an INI format file, which is editable, and has a uniform content writing format, and is used for recording the differential information of the tested controller, and reading the information by the test script.

3. The method as claimed in claim 1, wherein the automated testing software in step three is CANoe software, and a testing script of the CANoe software is written in XML and CAPL languages, and can automatically read a configuration file of the measured controller and identify a difference point, so as to control the power supply device, so that the measured controller switches a power mode and executes a specific diagnostic automated test.

4. The method as claimed in claim 1, wherein the XML file is an interface file between CANoe software and a CAPL test script, and the CAPL test script is a main diagnostic automation test program for reading a tested controller configuration file, controlling test execution and hardware devices, and storing a test Log and a test report.

5. The method for automated testing of vehicle controller diagnostic functionality according to claim 4, wherein the CAPL test script is encrypted.

6. The method for automated testing of diagnostic functionality for a vehicle controller of claim 1, wherein step five further comprises:

(1) reading the information of the tested controller according to the input path of the configuration file of the tested controller;

(2) setting power supply equipment resources;

(3) setting a test Log file and a test report saving path;

(4) starting a power supply and a vehicle speed signal simulation function;

(5) supplying power to the measured controller, and switching the power mode of the measured controller;

(6) checking whether the configuration information of the measured controller is correct or not;

(7) setting configuration codes of a tested controller and VIN diagnostic test necessary information;

(8) and executing a specific diagnosis test item and starting a test Log recording function.

7. The method of claim 1, wherein the power supply device is a VT system or programmable power hardware.

8. An automated test system for vehicle controller diagnostic functionality, comprising:

the electronic equipment stores and calls the automatic testing software;

and the power supply equipment is used for supplying power to the measured controller.

9. The system of claim 8, wherein the power supply unit is configured to provide 12V power and is configured with a programmable interface, such as a GPIB interface or a DLL power control interface, that the test script invokes to control the device to switch the power mode of the monitored controller.

10. The automated vehicle controller diagnostic function testing system of claim 8, wherein said electronic device comprises: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the automatic test method of the vehicle controller diagnosis function.

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