CN115729798A - Automatic testing method, device and platform for automobile - Google Patents
Automatic testing method, device and platform for automobile Download PDFInfo
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Abstract
The invention relates to the technical field of automobile testing, in particular to an automatic testing method, a device and a platform of an automobile, wherein the automatic testing method comprises the following steps: acquiring the current test requirement of the automobile to be tested; generating at least one test case according to the current test requirement, and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case; and controlling the automobile to be tested to finish testing based on at least one testing script, and generating a testing report of the automobile to be tested according to the testing data and the testing result in the testing process. The method can realize automatic test of the automobile, effectively shorten the test period, save labor cost, improve the test efficiency and the test accuracy and improve the objectivity, and can further generate an automatic test library file which is associated with the version of the required function specification of the whole automobile, thereby facilitating the high efficiency and the test uniqueness of the function specification test corresponding to the application of different automobile types.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to an automatic automobile testing method, device and platform.
Background
At present, users have higher and higher functional requirements for automobiles, for example, an Electric Power Steering (EPS) is used as one of core parts of an automobile, from providing basic assistance to realizing auxiliary control to full automatic control, and different customer requirements cause that the development requirements of hardware and software of the EPS are very huge, so that the workload of automobile testing is also increased synchronously.
In the related art, when testing an automobile, a tester manually builds a test script and a test case, performs manual testing according to the test script and the test case, and manually issues a test report. However, the manual testing method in the related art has the disadvantages of long testing period, low testing efficiency, poor testing accuracy and objectivity, and reduced testing reliability.
Disclosure of Invention
In view of this, the present invention is directed to provide an automatic testing method for an automobile, which can achieve automatic testing of the automobile, effectively reduce a testing period, save labor cost, improve testing efficiency and testing accuracy, improve objectivity, and further generate an automatic testing library file, where the file is associated with a version of a required function specification of the entire automobile, so as to facilitate high efficiency and testing uniqueness of a function specification corresponding to application of different automobile types.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an automatic test method for an automobile comprises the following steps:
acquiring the current test requirement of the automobile to be tested;
generating at least one test case according to the current test requirement, and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case; and
and controlling the automobile to be tested to finish testing based on the at least one testing script, and generating a testing report of the automobile to be tested according to testing data and testing results in the testing process.
Further, the generating at least one test case according to the current test requirement includes:
generating simulation information of the CAN/CANFD bus of the whole vehicle according to the current test requirement;
matching test environment information and/or test fault data of the automobile to be tested according to the simulation information;
and obtaining the at least one test case according to the test environment information and/or the test fault data.
Further, the generating at least one test case according to the current test requirement includes:
identifying a test identification of the current test requirement;
and matching the at least one test case from a database according to the test identification and the current test requirement.
Further, still include:
and updating the database according to the received updating information every preset time.
Further, the controlling the vehicle to be tested to complete the test based on the at least one test script includes:
respectively generating at least one CAN instruction related to the voltage of the power supply, the control of an IG switch and the output signal of the sensor by using the at least one test script;
and controlling the power supply, the IG switch and/or the sensor to execute corresponding test actions according to the at least one CAN command.
Compared with the prior art, the automatic testing method for the automobile has the following advantages:
the automatic test method of the automobile generates the automatic test case according to the test requirement, compiles the automatic test script to automatically complete the test and automatically output the test report, thereby realizing the automatic test of the automobile, effectively reducing the test period, saving the labor cost, improving the test efficiency and the test accuracy and improving the objectivity, and further generating the automatic test library file which is associated with the version of the function specification required by the whole automobile, and being convenient for applying the high efficiency and the test uniqueness of the corresponding function specification test for different automobile types.
Another objective of the present invention is to provide an automatic testing apparatus for an automobile, which can realize automatic testing of an automobile, effectively reduce a testing period, save labor cost, improve testing efficiency and testing accuracy, improve objectivity, and further generate an automatic testing library file, wherein the file is associated with a version of a required function specification of the whole automobile, so as to facilitate high efficiency and testing uniqueness of the corresponding function specification testing applied to different automobile types.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an automated test apparatus for an automobile, comprising:
the acquisition module is used for acquiring the current test requirement of the automobile to be tested;
the generating module is used for generating at least one test case according to the current test requirement and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case; and
and the test module is used for controlling the automobile to be tested to finish testing based on the at least one test script and generating a test report of the automobile to be tested according to test data and test results in the test process.
Further, the generating module is used for generating simulation information of the CAN/CANFD bus of the whole automobile according to the current test requirement, matching test environment information and/or test fault data of the automobile to be tested according to the simulation information, and obtaining the at least one test case according to the test environment information and/or the test fault data; or,
the generating module is used for identifying the test identification of the current test requirement and matching the at least one test case from the database according to the test identification and the current test requirement.
Further, the method also comprises the following steps:
and the updating module is used for updating the database according to the received updating information every other preset time.
Further, the test module is configured to generate at least one CAN command related to a voltage of the power supply, a control of the IG switch, and an output signal of the sensor, respectively, by using the at least one test script, and control the power supply, the IG switch, and/or the sensor to perform a corresponding test action according to the at least one CAN command.
Compared with the prior art, the automatic testing device of the automobile and the automatic testing method of the automobile have the same advantages, and are not repeated herein.
Another objective of the present invention is to provide an automatic testing platform for an automobile, which can implement automatic testing of an automobile, effectively reduce a testing period, save labor cost, improve testing efficiency and testing accuracy, improve objectivity, and further generate an automatic testing library file, where the file is associated with a version of a required function specification of the whole automobile, so as to facilitate high efficiency and testing uniqueness of corresponding function specification testing applied to different automobile types.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an automatic test platform of an automobile is provided with the automatic test device of the automobile according to the embodiment.
Compared with the prior art, the automatic test platform of the automobile and the automatic test device of the automobile have the same advantages, and are not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of an automated testing method for a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an automated test system according to an embodiment of the present invention;
fig. 3 is a block diagram of an automatic testing apparatus for an automobile according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
With the change of electrification, intellectualization and networking of automobiles, the comfortableness of intellectualization and carrying of the whole automobile becomes an indispensable component for evaluating the performance of the whole automobile, so that a user cannot meet the requirement of realizing basic functions, and the function complexity of the current product is higher compared with the requirement of realizing basic driving. For example, in an electric power steering system as a core component of an automobile, from providing basic power assistance to realizing auxiliary control to full-automatic control, different customer requirements cause huge development requirements on hardware and software of the EPS, thereby causing a synchronous increase in the workload of testing.
In order to shorten the development period and save the development cost, a host factory makes a vehicle model into platform development, technical requirement files used under the platform are the same or similar, however, a test method in the related technology is as follows: the tester realizes manual testing by manually setting up a test script and a test case, the test period is long, and the test accuracy, the time sequence and the uniqueness are slightly poor. Specifically, the related art has the following drawbacks:
(1) The current working mode of complete manual testing is adopted for testing, the testing period is long, the management is inconvenient, the document tracing management is poor, and a testing report needs to be manually issued;
(2) A plurality of testers work in cycles, which is inconvenient for the platform function transplantation test;
(3) The manual test is adopted to compare the execution time or the operation time of each step, which is random, and the completely recurring working condition is poor.
Therefore, the embodiment of the invention can adopt an automatic test method to carry out upgrading management according to the corresponding test document, test personnel refine test requirements, compile test cases, complete automatic test script building based on software such as CANoe software according to the test cases, complete testing and issue test reports.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a flowchart of an automated testing method of an automobile according to an embodiment of the present invention.
As shown in fig. 1, the automated testing method for the automobile according to the embodiment of the present invention includes the following steps:
and S101, acquiring the current test requirement of the automobile to be tested.
The embodiment of the invention can acquire the current test requirement in various ways, for example, acquiring the voice of a user and identifying the voice of the user so as to acquire the current test requirement; for another example, a trigger signal when the user triggers the key is collected, wherein the trigger signal has a corresponding relationship with the test requirement, and the current test requirement of the user is determined according to the trigger signal.
Step S102, generating at least one test case according to the current test requirement, and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case.
It can be understood that the embodiment of the invention can automatically generate the test case and the test script according to the test requirement, thereby saving the labor hour, avoiding the need of manually building the test case and the test script and improving the test efficiency. In addition, the automatic generation of the test cases and the test scripts can also ensure that the test programs under the same test requirements are the same, so that the same test programs can be adopted for testing, and the test conclusion can be accurately and definitely judged.
In some embodiments, generating at least one test case according to current test requirements includes: generating simulation information of the CAN/CANFD bus of the whole vehicle according to the current test requirement; matching the test environment information and/or the test fault data of the automobile to be tested according to the simulation information; and obtaining at least one test case according to the test environment information and/or the test fault data.
The embodiment of the invention CAN lead out the physical variable of the simulation information through the environment variable, and simultaneously relates to the use of a fault injection module in CAN communication, the fault injection module CAN make faults such as abnormal physical value checking algorithm, message loss and the like, and the definition of the part of the environment variable is defined by input and output signals in a test case.
Therefore, the embodiment of the invention can match the test environment information and/or the test fault data according to the simulation information to automatically generate at least one test case, thereby saving labor hour, avoiding manual construction of the test case and improving test efficiency.
In some embodiments, generating at least one test case according to current test requirements includes: identifying a test identification of the current test requirement; and matching at least one test case from the database according to the test identification and the current test requirement.
It can be understood that the embodiment of the invention can also directly match at least one test case from the database according to the test requirement to automatically generate the test case, thereby saving the labor hour, avoiding the need of manually building the test case and improving the test efficiency.
In this embodiment, the database is updated every preset time according to the received update information.
The preset duration can be set according to actual requirements, and is not specifically limited. The embodiment of the invention can update the database in time so as to meet the development requirement of automobiles.
And S103, controlling the automobile to be tested to complete the test based on at least one test script, and generating a test report of the automobile to be tested according to the test data and the test result in the test process.
It can be understood that the embodiment of the invention can adopt an automatic test mode to complete the delivery of the test script and carry out the test, and can automatically output the test report, thereby effectively saving the labor cost and improving the objectivity and the accuracy of the test
In this embodiment, controlling the vehicle to be tested to complete the test based on at least one test script includes: respectively generating at least one CAN instruction related to the voltage of a power supply, the control of an IG switch and the output signal of a sensor by using at least one test script; and controlling the power supply, the IG switch and/or the sensor to execute corresponding test actions according to at least one CAN command.
It is understood that the embodiment of the present invention may control the voltage of the power supply, the control of the IG switch, and the control of the sensor output signal using CAN communication. The control process of the IG switch is as follows:
the CAN command is a CAN message provided by the CAN receiving and transmitting module received by the singlechip, the CANoe sends an IG state request command, the singlechip drives the relay to be switched on and off through an IO port and a drive circuit of the relay, one end of the relay is connected with the anode of a CAN control power supply, and the other end of the relay is connected with the ECU; when the relay is closed, the positive electrode of the power supply is conducted with an IG line, and the IG state is ON; when the relay is disconnected, the IG line is disconnected, and the IG state is OFF; the IG state is thus controlled by the CAN.
In summary, the testing method of the embodiment of the invention has at least the following effects:
(1) Labor hour is saved, and an automatic testing method is adopted to complete test script delivery for software testing;
(2) The automatic test case ID is used for tracing, so that the test points correspond to the source document conveniently;
(3) The automatic testing method is matched with and updated according to the platform function specification of the host factory, is suitable for all vehicle types with the execution specification, and increases the testing efficiency and the application rate;
(4) The same test program is adopted for testing, so that the test conclusion can be accurately and definitely judged;
(5) A test report is automatically generated, so that the labor cost is saved, and the objectivity and the accuracy are improved.
It should be noted that the testing method of the embodiment of the present invention can be applied to an automated testing system as shown in fig. 2, which includes: test cases, system variables, environment variables, control modules, CCP/XCP protocol integration modules, and vehicle bus simulation modules, wherein,
(1) The test cases ID1 to IDn are test cases extracted from the platform function file, and control instructions are completed by calling parameters in system variables according to the time including test time sequence and working condition action process;
(2) The system variables comprise flag bits for the ECU to execute each action, physical value signals of the real vehicle to be sent out, internal parameters of the controller to be uploaded by CCP/XCP, and state feedback for receiving and updating each control module;
(3) The test cases and the system variables are associated according to the function documents of the whole vehicle and are managed as the same version, and when the function strategy is changed, the test cases and the system variables need to be updated synchronously;
(4) The environment variables comprise fault injection zone bits, signals for controlling the whole vehicle and signals sent out by an ECU (electronic control unit), and are used as interface information between the whole vehicle and the test case;
(5) The control module controls the voltage of the power supply, an IG switch and a sensor output signal by using CAN communication, and the control module provides a signal value by a system variable so as to execute corresponding control according to the signal; the signal value is a CAN message provided by a CAN transceiver module received by a single chip microcomputer (Electronic Control Unit, ECU), and a request instruction of an IG state is sent by a CANoe, the single chip microcomputer drives a relay to be switched ON and off through an IO port and a drive circuit of the relay, one end of the relay is connected with the anode of a CAN Control power supply, the other end of the relay is connected with the ECU, when the relay is closed, the anode of the power supply is connected with an IG line, and the IG state is ON; when the relay is disconnected, the IG line is disconnected, and the IG state is OFF; thus, the IG state is controlled through the CAN;
(6) The CCP/XCP protocol integration module is used for periodically uploading required ECU internal control signals in an integrated DAQ mode;
(7) The vehicle bus simulation module is used for simulating and simulating vehicle bus information.
Based on the automated testing system shown in fig. 2, the automated testing of the automobile according to the embodiment of the present invention is as follows:
firstly, an automatic test system is composed of a program-controlled direct-current power supply, an automatic CAN IG control module, a CAN control torque sensor module and a CANoe module, wherein a Caple module in the CANoe is used for building a simulation message simulating a whole vehicle CAN bus, physical variables of the simulation message are led out through environment variables, and the environment variables relate to fault injection modules in CAN communication and are used for manufacturing faults such as abnormal physical value checking algorithm, message loss and the like. The definition of the environment variable is defined by input and output signals in the test case, and the construction content is determined according to the function specification of all test vehicle types; and building a system variable of the CANoe based on the environment variable, wherein the system variable is used for assigning the environment variable for use, and the system variable can be updated along with the version number of the functional specification.
Secondly, the Teststep is compiled by using a Testcase module in the CANoe, the Testcase is used for compiling scripts, and protocol commands based on CCP or XCP are compiled and analyzed, so that internal variable parameters of the control module are obtained, and meanwhile, the program-controlled direct-current power supply, the automatic CAN IG control module and the CAN control torque sensor module are uniformly distributed and controlled by the Testcase module through a private CAN or a CAN FD, so that any test environment and any input environment CAN be realized.
According to the automatic testing method of the automobile, the automatic testing case is generated according to the testing requirement, the automatic testing script is compiled to automatically complete the testing and automatically output the testing report, so that the automatic testing of the automobile is realized, the testing period is effectively shortened, the labor cost is saved, the testing efficiency and the testing accuracy are improved, the objectivity is improved, the automatic testing library file can be further generated, the file is associated with the version of the function specification required by the whole automobile, and the high efficiency and the testing uniqueness of the corresponding function specification applied to different automobile types are facilitated.
Further, as shown in fig. 3, an embodiment of the present invention further discloses an automatic testing apparatus 10 for an automobile, including: an acquisition module 100, a generation module 200 and a test module 300.
Specifically, as shown in fig. 3, the obtaining module 100 is configured to obtain a current testing requirement of the vehicle to be tested; the generating module 200 is configured to generate at least one test case according to a current test requirement, and generate at least one test script for testing an automobile to be tested by using the at least one test case; the test module 300 is configured to control the vehicle to be tested to complete the test based on at least one test script, and generate a test report of the vehicle to be tested according to the test data and the test result during the test.
Further, the generating module 200 is configured to generate simulation information of the CAN/CAN fd bus of the entire vehicle according to the current test requirement, match test environment information and/or test fault data of the vehicle to be tested according to the simulation information, and obtain at least one test case according to the test environment information and/or the test fault data; or, the generating module 200 is configured to identify a test identifier of the current test requirement, and match at least one test case from the database according to the test identifier and the current test requirement.
Further, the apparatus 10 of the embodiment of the present invention further includes: and updating the module. And the updating module is used for updating the database according to the received updating information at intervals of preset time.
Further, the test module 300 is configured to generate at least one CAN command related to the voltage of the power supply, the control of the IG switch, and the output signal of the sensor by using at least one test script, and control the power supply, the IG switch, and/or the sensor to perform a corresponding test action according to the at least one CAN command.
It should be noted that the specific implementation manner of the automatic testing apparatus for an automobile according to the embodiment of the present invention is similar to the specific implementation manner of the automatic testing method for an automobile, and in order to reduce redundancy, details are not described here.
According to the automatic testing device of the automobile, the automatic testing case is generated according to the testing requirement, the automatic testing script is compiled to automatically complete the testing and automatically output the testing report, so that the automatic testing of the automobile is realized, the testing period is effectively shortened, the labor cost is saved, the testing efficiency and the testing accuracy are improved, the objectivity is improved, an automatic testing library file can be further generated, the file is associated with the version of the function specification required by the whole automobile, and the high efficiency and the testing uniqueness of the corresponding function specification applied to different automobile types are facilitated.
Further, the embodiment of the invention discloses an automatic testing platform of an automobile, which is provided with the automatic testing device of the automobile of the embodiment. The platform has the advantages that the automatic test of the automobile can be realized, the test period is effectively shortened, the labor cost is saved, the test efficiency and the test accuracy are improved, the objectivity is improved, an automatic test library file can be further generated, the file is associated with the version of the whole automobile requirement function specification, and the high efficiency and the test uniqueness of the corresponding function specification test applied to different automobile types are facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. An automatic test method of an automobile is characterized by comprising the following steps:
acquiring the current test requirement of the automobile to be tested;
generating at least one test case according to the current test requirement, and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case; and
and controlling the automobile to be tested to complete the test based on the at least one test script, and generating a test report of the automobile to be tested according to test data and test results in the test process.
2. The method of claim 1, wherein generating at least one test case according to the current test requirements comprises:
generating simulation information of the CAN/CANFD bus of the whole vehicle according to the current test requirement;
matching the test environment information and/or the test fault data of the automobile to be tested according to the simulation information;
and obtaining the at least one test case according to the test environment information and/or the test fault data.
3. The method of claim 1, wherein generating at least one test case according to the current test requirements comprises:
identifying a test identification of the current test requirement;
and matching the at least one test case from a database according to the test identification and the current test requirement.
4. The method of claim 3, further comprising:
and updating the database according to the received updating information every preset time.
5. The method of claim 1, wherein said controlling said vehicle under test to complete a test based on said at least one test script comprises:
respectively generating at least one CAN instruction related to the voltage of the power supply, the control of an IG switch and the output signal of a sensor by using the at least one test script;
and controlling the power supply, the IG switch and/or the sensor to execute corresponding test actions according to the at least one CAN command.
6. An automated testing device for a vehicle, comprising:
the acquisition module is used for acquiring the current test requirement of the automobile to be tested;
the generating module is used for generating at least one test case according to the current test requirement and generating at least one test script for testing the automobile to be tested by utilizing the at least one test case; and
and the test module is used for controlling the automobile to be tested to finish testing based on the at least one test script and generating a test report of the automobile to be tested according to test data and test results in the test process.
7. The device of claim 6, wherein the generating module is configured to generate simulation information of a CAN/CANFD bus of the entire vehicle according to the current testing requirement, match test environment information and/or test fault data of the vehicle to be tested according to the simulation information, and obtain the at least one test case according to the test environment information and/or test fault data; or,
the generating module is used for identifying the test identification of the current test requirement and matching the at least one test case from the database according to the test identification and the current test requirement.
8. The apparatus of claim 7, further comprising:
and the updating module is used for updating the database according to the received updating information every other preset time.
9. The apparatus according to claim 6, wherein the test module is configured to generate at least one CAN command related to the voltage of the power supply, the control of the IG switch, and the output signal of the sensor, respectively, using the at least one test script, and to control the power supply, the IG switch, and/or the sensor to perform a corresponding test action according to the at least one CAN command.
10. An automated testing platform for automobiles, comprising the automated testing apparatus for automobiles according to any one of claims 6 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116800656A (en) * | 2023-08-28 | 2023-09-22 | 上海鉴智其迹科技有限公司 | CAN communication test method, system, device, electronic equipment and storage medium |
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| CN116800656A (en) * | 2023-08-28 | 2023-09-22 | 上海鉴智其迹科技有限公司 | CAN communication test method, system, device, electronic equipment and storage medium |
| CN116800656B (en) * | 2023-08-28 | 2023-10-27 | 上海鉴智其迹科技有限公司 | CAN communication test method, system, device, electronic equipment and storage medium |
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