CN116990605A - Power supply voltage waveform impact test system and method for vehicle-mounted electric appliance parts - Google Patents
Power supply voltage waveform impact test system and method for vehicle-mounted electric appliance parts Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
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Abstract
The invention relates to the technical field of electric and software performance test of vehicle electronic appliance parts, and discloses a vehicle-mounted electric appliance part power supply voltage waveform impact test system and a method, wherein the system comprises the following components: the waveform data cloud storage server is used for storing waveform data and invoking policy implementation; the automatic test execution machine is provided with a pulse test waveform control software system for reading waveform data and sending voltage data to the programmable power supply according to an execution strategy set by a user based on a scene to be tested, and after waveform verification of an object to be tested is completed, acquiring monitoring data based on automatic judgment of the running condition of the vehicle-mounted electric appliance parts; the programmable power supply is used for receiving the voltage data simulation output pulse and outputting the voltage data simulation output pulse to the object to be tested. The test system and the test method provided by the invention can verify the impact of the actual power pulse waveform of the real vehicle on the electrical equipment, and verify the safety problem caused by the failure of the system software of the electrical equipment related to the vehicle control due to the impact of the power waveform after intercepting the real vehicle on the part.
Description
Technical Field
The invention relates to the technical field of electric and software performance test of vehicle electronic appliance parts, in particular to a power supply voltage waveform impact test system and method for vehicle-mounted electric appliance parts.
Background
With the high-speed development of the current automobile industry, the functions of the whole automobile are continuously iterated and replaced, so that the functions of the whole automobile are more and more complex, the controllers are more and more, and the duty ratio of the electronic controller of the automobile in the parts of the whole automobile is increasingly increased. The power supply of the power consumption units such as the electric equipment of the whole vehicle is mainly from a vehicle-mounted low-voltage power supply, an automobile engine, a high-voltage battery of the electric vehicle and other systems when the whole vehicle works. The existing voltage impact test method is mainly applied to household appliances, has no actual vehicle part test experience, has different differences between waveform voltage received by related electric equipment and actual vehicle working condition voltage intervals, generates various types of power supply voltage fluctuation of 0V-480V along with the condition of a whole vehicle power supply in different states in the actual working process of a vehicle, has probability of causing the problem of failure of software and hardware functions of electronic equipment after the electric equipment of the actual vehicle controller receives the power supply voltage fluctuation impact, and has potential safety hazards when the problem is light in the actual vehicle, causes the failure of simple actual vehicle functions and is heavy in the actual vehicle.
Disclosure of Invention
Therefore, in order to intercept the problem of software and hardware failure caused by power supply voltage impact in advance, the invention provides a power supply voltage waveform impact test system and method for vehicle-mounted electrical equipment parts, which can judge the working condition of the vehicle-mounted electrical equipment parts to be tested through an automatic means.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the present invention provides a vehicle-mounted electrical component power supply voltage waveform impact test system, an automated test execution machine, a waveform data cloud storage server and a programmable power supply, wherein:
the waveform data cloud storage server is used for storing waveform data and invoking policy implementation;
the automatic test execution machine is provided with a pulse test waveform control software system and is used for reading waveform data in a cloud storage server of waveform data of clothes, sending voltage data to a programmable power supply according to an execution strategy set by a user based on a scene to be tested, acquiring monitoring data of the vehicle-mounted electric appliance parts to be tested through the software system after waveform verification of the vehicle-mounted electric appliance parts to be tested is completed, and judging the functional operation condition of the vehicle-mounted electric appliance parts based on an automatic verification function;
the programmable power supply is used for receiving voltage data issued by the automatic test execution machine, simulating output pulses according to the voltage data and outputting the pulses to the vehicle-mounted electric appliance parts to be tested.
The test system provided by the invention can verify the impact of the actual power pulse waveform of the real vehicle on the electrical equipment, and verify the safety problem caused by the failure of the system software of the vehicle control related electrical equipment due to the impact of the power waveform after intercepting the real vehicle on the part.
In an embodiment, the pulse test waveform control software system reserves an interface externally, reserves full-flow automatic tracking processing of the power supply voltage waveform impact test system test, and supports local waveform data cloud reading, waveform impact test cloud initiation and waveform impact test result cloud display.
According to the embodiment of the invention, the traceability and the reliability of the test are ensured through the automatic tracking processing of the test full flow, the local interaction with the cloud is realized through the external reserved interface, and the remote control and the data storage backup are more convenient.
In one embodiment, the automated test execution machine communicates with the waveform storage server via an ethernet communication bus; the automatic test execution machine is communicated with the programmable power supply through a serial communication bus; and bus transmission monitoring data is carried out between the automatic execution machine and the vehicle-mounted electric appliance part to be tested in a serial port communication or ADB debugging communication mode.
The automatic test execution machine and the waveform storage server are communicated through the Ethernet communication bus, the communication rate is high, the cost is low, the automatic test execution machine, the programmable power supply and the vehicle-mounted electric appliance parts to be tested are communicated through the serial communication bus, the data can be received through the receiving line while the data is transmitted through the transmitting line, the method is simple, the remote communication can be realized, and the communication cost is low.
In an embodiment, the waveform data cloud storage server can be used for an automatic test execution machine to obtain waveform data, a plurality of programmable power supplies can be simultaneously mounted under a plurality of automatic test execution machines, and meanwhile, to-be-tested vehicle-mounted electrical equipment parts connected to the programmable power supplies are added and deleted according to test conditions.
According to the embodiment, the test is carried out on the plurality of to-be-tested vehicle-mounted electric appliance parts at the same time, so that the test efficiency is improved.
In a second aspect, an embodiment of the present invention provides a method for testing a waveform impact of a power supply voltage of a component of an on-vehicle electrical apparatus, where the method is based on the test system of the first aspect, and includes:
the power supply voltage waveform impact test system is connected to the positive and negative electrodes of the power supply provided by the controller to be tested and the ACC gear interface of the real vehicle through a programmable power supply;
opening an automatic test execution machine, wherein a pulse test waveform control software system carried by the automatic test execution machine reads a waveform data file stored on a server and displays the waveform data file to a voltage pulse waveform execution software main interface;
the user selects a scene to be verified according to the voltage pulse waveform data displayed on the main interface, and initiates a voltage pulse waveform test on the test control software interface;
the software system on the automatic test execution machine sequentially reads pulse waveform files from the waveform data cloud storage server according to a scene selected by a user, converts the pulse waveform files into voltage data which can be identified by the programmable power supply after processing the pulse waveform files, and sends the voltage data and the waveform output duration to the programmable power supply in a serial port communication mode after determining the waveform output duration through a preset algorithm;
the programmable power supply generates a corresponding pulse waveform after receiving the data and sends a power supply voltage pulse waveform to the vehicle-mounted electrical equipment part to be tested;
in the voltage pulse waveform test process, the current running waveform execution condition is checked in real time through an automatic test execution machine, the current pulse waveform impact test can be terminated according to test requirements in the running process, and verification result judgment is not performed after termination;
after the voltage pulse waveform is sent, a software system in the to-be-automated test execution machine waits for waveform impact to be completed according to waveform output time length, and a programmable power supply automatically adjusts the condition of a power supply to a real vehicle simulation scene;
when the test waveform causes failure to the controller of the tested vehicle-mounted electric appliance component, waiting for the preset time to recover from the abnormality, and then calling an automatic verification function in a software system of the automatic test execution machine to check the working state of the software system of the vehicle-mounted electric appliance component.
The test method provided by the embodiment of the invention can intercept the software problems of overall system blocking, screen blacking and the like caused by partial waveform impact of the intelligent cabin software operating system of the vehicle, burn out electrical equipment and fire caused by partial high-voltage pulse, and simultaneously discover the existing hardware defects in advance, so that the safety problem caused by the burnout of the electrical equipment of the whole vehicle is reduced.
In one embodiment, the automatic verification function in the software system of the automatic test execution machine depends on the communication mode of the vehicle-mounted electric appliance, sends a function command to related hardware products, and uses the communication data as a judging basis to verify whether the function is normal or not.
According to the embodiment of the invention, the communication data of the vehicle-mounted electric appliance is used as a judging basis to verify whether the function is normal or not, so that the automatic verification process is simply and conveniently realized.
In an embodiment, after the step of automatically verifying that the function of the software system for calling the automated test execution machine checks whether the software system for calling the automated test execution machine for the on-board electrical component can work normally, the method further includes: and generating a test result and deriving a test report.
The test result can be intuitively displayed by exporting the test report, so that the operation and maintenance personnel can conveniently check the test result.
In one embodiment, during testing, the pulse test waveform control software system automatically reads a name form of waveform data, and presents the name form in a list form on a test scene selection interface of the pulse test waveform control software system, when a user uses the system, the user needs to select a data scene to be tested according to the displayed waveform data list, each waveform data is downloaded and previewed in the pulse test waveform control software system after being selected, and after the selected test scene is started to be executed, the automatic test execution machine downloads the data to the local and analyzes the voltage data therein and sends the data to the program-controlled power supply for corresponding voltage control.
According to the embodiment of the invention, various waveform data are displayed in the form of the software interface list, so that a user can conveniently select a test scene.
In an embodiment, the waveform data cloud storage server can be used for an automatic test execution machine to acquire waveform data, the automatic test execution machine supports to be connected with a plurality of programmable power supplies simultaneously, clustered cluster management is realized through a pulse test waveform control software system, a plurality of vehicle-mounted electric appliance part test racks are supported to work simultaneously, and the test flow of each vehicle-mounted electric appliance part test rack is consistent.
According to the embodiment of the invention, the clustered cluster management is realized through the pulse test waveform control software system, and the test efficiency of the vehicle-mounted electric appliance parts is improved.
The invention has the beneficial effects that:
(1) The invention can verify the impact of the actual power supply pulse waveform of the real vehicle on the electrical equipment, and verify the safety problem caused by the failure of the system software of the relevant electrical equipment for controlling the vehicle due to the impact of the power supply waveform after intercepting the real vehicle on the component;
(2) According to the invention, the traceability and the reliability of the test are ensured through the automatic tracking processing of the test full flow, the local interaction with the cloud is realized through the external reserved interface, and the remote control and the data storage backup are more convenient;
(3) The automatic test execution machine and the waveform storage server are communicated through the Ethernet communication bus, the communication rate is high, the cost is low, the automatic test execution machine, the programmable power supply and the vehicle-mounted electric appliance parts to be tested are communicated through the serial communication bus, the data can be received through the receiving line while the data is transmitted through the transmitting line, the method is simple, the remote communication can be realized, and the communication cost is low.
(4) The invention realizes clustered cluster management through the pulse test waveform control software system, and improves the test efficiency of the vehicle-mounted electric appliance parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram illustrating an exemplary power supply voltage waveform impact test system for components of a vehicle-mounted electrical apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the module components of a pulse test waveform control software system provided in an embodiment of the present invention;
FIG. 3 is a schematic diagram of an expanded architecture of a test system according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method for testing the waveform impact of the power supply voltage of the vehicle-mounted electric appliance component provided in the embodiment of the invention;
fig. 5 is a schematic diagram of a software main interface of a pulse test waveform control software system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment of the invention provides a power supply voltage waveform impact test system for parts of a vehicle-mounted electric appliance, as shown in fig. 1, which comprises: an automatic test execution machine, a waveform data cloud storage server and a programmable power supply, wherein,
the waveform data cloud storage server is used for storing waveform data and invoking policy implementation; in the embodiment of the invention, one part of waveform data is collected to the actual automobile working condition scene of the automobile, the data is accumulated for the industry technology, the other part of waveform data is the national standard and part of industry standard required waveform data, and the waveform data comprises 5 kinds of pulse waveform analysis development simulation waveform data required by the national standard ISO 7637, wherein the actual automobile working condition scene is accumulated into a continuous process, and the accumulation of test data scenes can be realized. And when the test system works, at least one waveform data is taken. The waveform data in the embodiment of the invention comprises: pulse type number, pulse type name, and pulse waveform number. Specific examples are shown in the following table:
| sequence number | Pulse type numbering | Pulse type name | Number of pulse waveforms |
| 1 | E01 | Long-time overpressure | 14 |
| 2 | E02 | Transient overvoltage | 24 |
| 3 | E03 | Transient under-voltage | 49 |
| 4 | E04 | Jump start | 3 |
| 5 | E05 | Load dump | 3 |
| 6 | E06 | Superimposed ac voltage | 14 |
| 7 | E07 | Supply voltage slow-down and slow-up | 8 |
| 8 | E08 | Supply voltage ramp down and ramp up | 2 |
| 9 | E09 | Reset characteristics | 8 |
| 10 | E10 | Short break | 53 |
| 11 | E11 | Start pulse | 255 |
| 12 | E12 | Intelligent generator regulation | 1 |
| 13 | E13 | Pin interruption | 108 |
| 14 | E14 | Electrode transformation | 2 |
| 15 | E15 | Real vehicle operating conditions | 1 |
| 16 | E16 | Combined scene | 9 |
The automatic test execution machine is provided with a pulse test waveform control software system and is used for reading waveform data in a cloud storage server of waveform data of clothes, sending voltage data to a programmable power supply according to an execution strategy set by a user based on a scene to be tested, acquiring monitoring data of the vehicle-mounted electric appliance parts to be tested through the software system after waveform verification of the vehicle-mounted electric appliance parts to be tested is completed, and judging the functional operation condition of the vehicle-mounted electric appliance parts based on an automatic verification function; specifically, as shown in fig. 2, the pulse test waveform control software system includes:
the test waveform reading function module is used for reading waveform data files stored on the waveform data cloud storage server; the waveform data display module is used for displaying the read waveform data to a voltage pulse waveform execution software main interface; the test verification execution module is used for sending voltage regulation data to the programmable power supply according to an execution strategy set by a user according to a scene to be tested and carrying out test verification; the test result verification module is used for judging the functional operation condition of the vehicle-mounted electrical appliance parts; the data management module is used for waveform data management, historical data management, test report management and test data preview; the communication module is used for data communication with the waveform data cloud storage server, the programmable power supply and the vehicle-mounted electrical appliance parts to be tested, and particularly, the automatic test execution machine and the waveform storage server are communicated through an Ethernet communication bus; the automatic test execution machine is communicated with the programmable power supply through a serial communication bus; the automatic execution machine and the vehicle-mounted electric appliance parts to be tested are subjected to bus transmission of monitoring data through serial ports or ADB debugging communication modes, and the method is not limited by the way of example.
And the programmable power supply is used for receiving voltage data issued by the automatic test execution machine, simulating output pulses according to the voltage data and outputting the pulses to the vehicle-mounted electrical appliance parts to be tested. In practical application, according to project test actual demand, expand test system, waveform data cloud storage server can supply automated test execution machine to obtain waveform data, can install a plurality of programmable power supplies simultaneously under a plurality of automated test execution machines, add and delete the on-vehicle electrical components and parts that await measuring under the programmable power supply according to the test condition simultaneously. An architecture diagram of the test system after expansion is shown in fig. 3.
The test system provided by the embodiment of the invention can verify the impact test of the actual power supply pulse waveform of the real vehicle on the electrical equipment, and verify the safety problem caused by the failure of the system software of the vehicle control related electronic electrical equipment due to the impact of the power supply waveform after intercepting the real vehicle on the part.
Example 2
The embodiment of the invention provides a power supply voltage waveform impact test method for parts of a vehicle-mounted electric appliance, which is based on a test system in embodiment 1, as shown in fig. 4, and comprises the following steps:
step S1: the power supply voltage waveform impact test system is connected to the power supply positive and negative electrode interfaces and the actual vehicle ACC gear interface provided by the controller to be tested through a programmable power supply; the vehicle controller is mainly powered by the positive electrode and the negative electrode of a power supply, the ACC gear is used as a hard wire signal and is directly connected with the power supply, and each part needs to judge the dormant power-down state of the power supply of the part of the real vehicle through the on-off of the ACC hard wire.
Step S2: opening an automatic test execution machine, wherein a pulse test waveform control software system carried by the automatic test execution machine reads a waveform data file stored on a server and displays the waveform data file to a voltage pulse waveform execution software main interface; a schematic of the software main interface is shown in fig. 5.
Step S3: the user selects a scene to be verified according to the voltage pulse waveform data displayed on the main interface, and initiates a voltage pulse waveform test on the test control software interface;
step S4: the software system on the automatic test execution machine sequentially reads pulse waveform files from the waveform data cloud storage server according to a scene selected by a user, converts the pulse waveform files into voltage data which can be identified by the programmable power supply after processing the pulse waveform files, and sends the voltage data and the waveform output duration to the programmable power supply in a serial port communication mode after determining the waveform output duration through a preset algorithm;
specifically, when testing, the pulse test waveform control software system automatically reads a name form of waveform data, and presents the name form in a list form on a test scene selection interface of the pulse test waveform control software system, when a user uses the system, the user needs to select a data scene to be tested according to the displayed waveform data list, each waveform data is downloaded and previewed in the pulse test waveform control software system after being selected, and after the selected test scene is started to be executed, the automatic test execution machine downloads the data to the local and analyzes the voltage data therein and sends the data to the program-controlled power supply to perform corresponding voltage control.
Step S5: the programmable power supply generates a corresponding pulse waveform after receiving the data and sends a power supply voltage pulse waveform to the vehicle-mounted electrical equipment part to be tested;
step S6: in the voltage pulse waveform test process, the current running waveform execution condition is checked in real time through an automatic test execution machine, the current pulse waveform impact test can be terminated according to test requirements in the running process, and verification result judgment is not performed after termination;
step S7: after the voltage pulse waveform is sent, a software system in the to-be-automated test execution machine waits for waveform impact to be completed according to waveform output time length, and a programmable power supply automatically adjusts the condition of a power supply to a real vehicle simulation scene;
step S8: when the test waveform causes failure to the controller of the vehicle-mounted electric appliance component under test, waiting for preset time (which is a settable parameter, for example, 30 seconds, and the time length for each controller of the vehicle-mounted electric appliance component to recover from the abnormality after waveform impact is different at present, so that corresponding configuration can be made according to the characteristics of the controller when other controllers are tested) waiting for the controller to recover from the abnormality, and then calling an automatic verification function in a software system of an automatic test execution machine to check the working state of the software system of the vehicle-mounted electric appliance component. I.e. judging whether it can work normally. If yes, the test is qualified; otherwise, judging that the test is unqualified.
The existing vehicle-mounted electric appliance communication mode adopts a CAN network signal simulation and serial port function communication mode; the automatic verification function in the software system of the automatic test execution machine depends on the CAN network signal simulation and serial port function communication mode of the vehicle-mounted electric appliance, a function instruction is sent to related hardware products, and whether the verification function is normal or not is judged by serial port feedback data and CAN network communication data.
Step S9: and generating a test result and deriving a test report.
The waveform data cloud storage server in the embodiment of the invention can be used for an automatic test execution machine to acquire waveform data, the automatic test execution machine supports to be simultaneously connected with a plurality of programmable power supplies, the clustered cluster management is realized through a pulse test waveform control software system, a plurality of vehicle-mounted electrical appliance part test racks are simultaneously supported to work, and the work flow of a single test rack is consistent with the steps of the flow.
The test method provided by the embodiment of the invention can intercept the software problems of overall system blocking, screen blacking and the like caused by partial waveform impact of the intelligent cabin software operating system of the vehicle, burn out electrical equipment and fire caused by partial high-voltage pulse, and simultaneously discover the existing hardware defects in advance, so that the safety problem caused by the burnout of the electrical equipment of the whole vehicle is reduced.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a vehicle-mounted electrical parts power voltage waveform impact test system which characterized in that includes: the system comprises an automatic test execution machine, a waveform data cloud storage server and a programmable power supply, wherein:
the waveform data cloud storage server is used for storing waveform data and invoking policy implementation;
the automatic test execution machine is provided with a pulse test waveform control software system and is used for reading waveform data in a cloud storage server of waveform data of clothes, sending voltage data to a programmable power supply according to an execution strategy set by a user based on a scene to be tested, acquiring monitoring data of the vehicle-mounted electric appliance parts to be tested through the software system after waveform verification of the vehicle-mounted electric appliance parts to be tested is completed, and judging the functional operation condition of the vehicle-mounted electric appliance parts based on an automatic verification function;
the programmable power supply is used for receiving voltage data issued by the automatic test execution machine, simulating output pulses according to the voltage data and outputting the pulses to the vehicle-mounted electric appliance parts to be tested.
2. The vehicle-mounted electrical component power supply voltage waveform impact test system according to claim 1, wherein the pulse test waveform control software system reserves an interface outwards, reserves full-flow automatic tracking processing of the power supply voltage waveform impact test system test, and supports local waveform data cloud reading, waveform impact test cloud initiation and waveform impact test result cloud display.
3. The vehicle-mounted electrical component power supply voltage waveform impact test system of claim 2, wherein the pulse test waveform control software system comprises:
the test waveform reading function module is used for reading waveform data files stored on the waveform data cloud storage server;
the waveform data display module is used for displaying the read waveform data to a voltage pulse waveform execution software main interface;
the test verification execution module is used for sending voltage regulation data to the programmable power supply according to an execution strategy set by a user according to a scene to be tested and carrying out test verification;
the test result verification module is used for judging the functional operation condition of the vehicle-mounted electrical appliance parts;
the data management module is used for waveform data management, historical data management, test report management and test data preview;
the communication module is used for data communication with the waveform data cloud storage server, the programmable power supply and the vehicle-mounted electrical appliance parts to be tested.
4. The system for waveform impact testing of power supply voltage of vehicle-mounted electrical equipment parts according to claim 3, wherein the automatic test execution machine and the waveform storage server communicate with each other through an ethernet communication bus; the automatic test execution machine is communicated with the programmable power supply through a serial communication bus; and bus transmission monitoring data is carried out between the automatic execution machine and the vehicle-mounted electric appliance part to be tested in a serial port communication or ADB debugging communication mode.
5. The waveform impact test system of the power supply voltage of the vehicle-mounted electrical equipment parts according to claim 1, wherein the waveform data cloud storage server can be used for an automatic test execution machine to acquire waveform data, a plurality of programmable power supplies can be mounted under a plurality of automatic test execution machines at the same time, and meanwhile, to-be-tested vehicle-mounted electrical equipment parts under the programmable power supplies can be added and deleted according to test conditions.
6. A vehicle-mounted electrical component power supply voltage waveform impact test method, characterized in that based on the test system of any one of claims 1-5, the test method comprises:
the power supply positive and negative electrodes provided by the controller to be tested and the actual ACC gear interface are connected with a power supply voltage waveform impact test system through a programmable power supply;
opening an automatic test execution machine, wherein a pulse test waveform control software system carried by the automatic test execution machine reads a waveform data file stored on a server and displays the waveform data file to a voltage pulse waveform execution software main interface;
the user selects a scene to be verified according to the voltage pulse waveform data displayed on the main interface, and initiates a voltage pulse waveform test on the test control software interface;
the software system on the automatic test execution machine sequentially reads pulse waveform files from the waveform data cloud storage server according to a scene selected by a user, converts the pulse waveform files into voltage data which can be identified by the programmable power supply after processing the pulse waveform files, and sends the voltage data and the waveform output duration to the programmable power supply in a serial port communication mode after determining the waveform output duration through a preset algorithm;
the programmable power supply generates a corresponding pulse waveform after receiving the data and sends a power supply voltage pulse waveform to the vehicle-mounted electrical equipment part to be tested;
in the voltage pulse waveform test process, the current running waveform execution condition is checked in real time through an automatic test execution machine, the current pulse waveform impact test can be terminated according to test requirements in the running process, and verification result judgment is not performed after termination;
after the voltage pulse waveform is sent, the software system in the automatic test execution machine waits for the waveform impact to be completed according to the waveform output time length, and the programmable power supply automatically adjusts the power supply condition to the real vehicle simulation scene;
when the test waveform causes failure to the controller of the tested vehicle-mounted electric appliance component, waiting for the preset time to recover from the abnormality, and then calling an automatic verification function in a software system of the automatic test execution machine to check the working state of the software system of the vehicle-mounted electric appliance component.
7. The power supply voltage waveform impact test method of vehicle-mounted electric appliance parts according to claim 6, wherein the automatic verification function in the software system of the automatic test execution machine depends on the communication mode of the vehicle-mounted electric appliance, sends a function command to related hardware products, and judges whether the verification function is normal or not by using the communication data as a basis.
8. The method for testing the waveform impact of the power supply voltage of the vehicle-mounted electric appliance component according to claim 6, wherein after the step of automatically verifying whether the software system of the vehicle-mounted electric appliance component can work normally in the software system of the call automation test execution machine, the method further comprises: and generating a test result and deriving a test report.
9. The method for testing the voltage waveform impact of the power supply voltage of the vehicle-mounted electrical appliance component according to claim 6, wherein the pulse test waveform control software system automatically reads a name form of waveform data during testing, and presents the name form in a list form on a test scene selection interface of the pulse test waveform control software system, when the system is used by a user, a data scene to be tested is checked according to a displayed waveform data list, each waveform data is downloaded and previewed in the pulse test waveform control software system after being selected, and the selected test scene is downloaded to the local by an automatic test execution machine after the test is started to be executed, analyzes the voltage data therein and sends the voltage data to the program-controlled power supply for corresponding voltage control.
10. The method for testing the waveform impact of the power supply voltage of the vehicle-mounted electrical component according to claim 6, wherein the waveform data cloud storage server can be used for an automatic test execution machine to acquire waveform data, the automatic test execution machine supports to be connected with a plurality of programmable power supplies simultaneously, the clustered cluster management is realized through a pulse test waveform control software system, a plurality of vehicle-mounted electrical component test racks are supported to work simultaneously, and the test flow of each vehicle-mounted electrical component test rack is consistent.
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| CN202310869393.9A CN116990605A (en) | 2023-07-14 | 2023-07-14 | Power supply voltage waveform impact test system and method for vehicle-mounted electric appliance parts |
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| CN202310869393.9A CN116990605A (en) | 2023-07-14 | 2023-07-14 | Power supply voltage waveform impact test system and method for vehicle-mounted electric appliance parts |
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