CN113776707A - Vehicle power testing method, system and computer readable medium - Google Patents
Vehicle power testing method, system and computer readable medium Download PDFInfo
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- CN113776707A CN113776707A CN202111074559.5A CN202111074559A CN113776707A CN 113776707 A CN113776707 A CN 113776707A CN 202111074559 A CN202111074559 A CN 202111074559A CN 113776707 A CN113776707 A CN 113776707A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
A vehicle power testing method, system, and computer readable medium are provided. Wherein, the method comprises the following steps: judging whether a database file of a controller area network communication protocol of the tested vehicle exists or not; if the database file exists, receiving a first message of a controller area network communication protocol sent by the detected vehicle and analyzing the first message to obtain a first state signal of the detected vehicle; sending a debugging control instruction to the detected vehicle; and enabling the chassis dynamometer body and the tested vehicle to perform the vehicle power test in a coordinated manner based on the test content of the vehicle power test. The vehicle power testing method, the vehicle power testing system and the computer readable medium can be used for carrying out communication based on a controller local area network communication protocol with the tested vehicle and enabling the chassis dynamometer body and the tested vehicle to work coordinately, so that the automation level of vehicle power testing is greatly improved.
Description
Technical Field
The present application relates generally to the field of automotive technology, and more particularly, to a method, system and computer readable medium for testing vehicle power.
Background
In current vehicle power tests of vehicles on a chassis dynamometer, signals of a vehicle to be tested are generally collected on one device during the test, and signals of the chassis dynamometer are collected on another device (such as an upper computer of the chassis dynamometer). After the test is finished, two signals are respectively derived, and a test engineer carries out data processing analysis on the two signals and obtains a test conclusion. Due to the problems of data format, timestamp alignment and the like, uncertain influence factors such as low data analysis efficiency, complex working steps and the like are increased.
With the development of vehicle networking technology, status data of each subsystem of a vehicle CAN be acquired through a Controller Area Network (CAN). However, the existing chassis dynamometer is usually only used in road simulation or constant-speed and constant-force working modes and is not communicated with a vehicle to be tested. Therefore, how to improve the automation level of the vehicle power test of the vehicle on the chassis dynamometer is one of the problems that needs to be solved by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the application is to provide a vehicle power testing method, a system and a computer readable medium, which can greatly improve the automation level of vehicle power testing of a vehicle on a chassis dynamometer.
In order to solve the technical problem, the present application provides a vehicle power testing method, including: judging whether a database file of a controller area network communication protocol of the tested vehicle exists or not; if the database file exists, receiving a first message of a controller area network communication protocol sent by the detected vehicle and analyzing the first message to obtain a first state signal of the detected vehicle; sending a debugging control instruction to the tested vehicle; and enabling the chassis dynamometer body and the tested vehicle to perform the vehicle power test in a coordinated manner based on the test content of the vehicle power test.
In an embodiment of the application, the step of coordinating the chassis dynamometer body and the vehicle under test to execute the vehicle power test based on the test content of the vehicle power test includes: sending a tested vehicle control instruction corresponding to the test content to the tested vehicle, wherein the tested vehicle control instruction is used for setting the mode of the tested vehicle; and sending a chassis dynamometer body control instruction corresponding to the test content to the chassis dynamometer body, wherein the chassis dynamometer body control instruction is used for setting a mode of the chassis dynamometer body.
In an embodiment of the present application, the method further includes: and judging whether the communication requirement with the detected vehicle exists or not, and if not, ending the process.
In an embodiment of the present application, the method further includes: automatically generating a test report based on the data of the vehicle under test and the data of the chassis dynamometer body received during the execution of the vehicle power test.
In an embodiment of the present application, the method further includes: if the database file does not exist, receiving a second message of a controller local area network communication protocol sent by the detected vehicle when the detected vehicle executes a preset characteristic working condition, and interpreting a second state signal of the detected vehicle according to the second message; and receiving a third message of a controller area network communication protocol sent by the detected vehicle, and analyzing the third message based on a second state signal of the detected vehicle to obtain a third state signal of the detected vehicle.
In an embodiment of the application, the debug control instruction comprises any one or a combination of more than one of: an accelerator pedal depth signal, a brake pedal depth signal, and a motor torque demand signal.
In an embodiment of the application, the first status signal comprises any one or a combination of: the system comprises a motor rotating speed signal, a vehicle speed signal, a motor torque signal, a battery capacity state signal, a direct current bus voltage signal and a direct current bus current signal.
In an embodiment of the present application, the mode of the vehicle under test includes any one or a combination of: an N gear mode, a driving mode and a recovery mode; the mode of the chassis dynamometer body comprises any one or combination of more of the following items: a road resistance simulation mode, a constant speed mode, and a sweep speed mode.
The present application further provides a vehicle power test system, including: a memory for storing instructions executable by the processor; and a processor for executing the instructions to implement the method as described above.
The present application also provides a computer readable medium having stored thereon computer program code which, when executed by a processor, implements a method as described above.
Compared with the prior art, the vehicle power testing method, the vehicle power testing system and the computer readable medium can be used for carrying out communication based on a controller local area network communication protocol with the tested vehicle and enabling the chassis dynamometer body and the tested vehicle to work coordinately, so that the automation level of vehicle power testing is greatly improved. And moreover, the driving robot can be replaced under the specific working condition of the specific vehicle, so that the test cost is reduced. Meanwhile, various standard test methods can be better matched, and automatic tests can be provided according to the standard methods. And along with the development of networking vehicle, can make the operating condition of vehicle upload to the high in the clouds and save, can cooperate with cloud data, realize the recurrence of actual road operating mode conveniently, be favorable to each system function development of vehicle and repeated verification.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the application. In the drawings:
fig. 1 is an application scenario of a vehicle power testing method according to an embodiment of the present application.
FIG. 2 is a schematic flow chart diagram illustrating a vehicle power testing method according to an embodiment of the present application.
FIG. 3 is a schematic flow chart diagram illustrating a vehicle power testing method according to another embodiment of the present application.
FIG. 4 is an architecture diagram illustrating a vehicle power testing system according to an embodiment of the present application.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Flow charts are used herein to illustrate operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.
The application provides a vehicle power testing method. In one example, the vehicle power testing method may be implemented in a chassis dynamometer testing system that may communicate with a vehicle Controller Area Network (CAN) under test, which may include a chassis dynamometer body, the vehicle under test, a critical Controller Area Network (CAN) communication protocol of the vehicle under test, a data collection Controller Area Network (CAN) channel, and a normalized data analysis program. The key controller area network communication protocol is a signal required by the vehicle power testing method, and may not be a complete Controller Area Network (CAN) communication protocol.
The chassis dynamometer body and the test system can be communicated in real time, and self-detection ensures that no problem exists in communication when the chassis dynamometer is started. The communication connection between the two is usually Ethernet, and the two can be connected together all the time on hardware. When the test system is started, self-checking can be firstly carried out, for example, whether the frequency converter is normal or not, whether the controller is normal or not, whether the body limit switch is normal or not, whether an alarm is given or not and the like. The communication protocol may be different for each vehicle under test. The communication protocols used by the same vehicle in different development stages may also be different.
Fig. 1 is an application scenario of a vehicle power testing method according to an embodiment of the present application. In the embodiment of the present application, the vehicle power test system that executes the vehicle power test method of the present application is operated in the chassis dynamometer host computer 101 of the chassis dynamometer test system. A Controller Area Network (CAN) communication interface 102 is led out from the chassis dynamometer upper computer 101, and the Controller Area Network (CAN) communication interface 102 is connected with a tested vehicle Controller Area Network (CAN) communication interface 104 through a Controller Area Network (CAN) communication line 103, so that the chassis dynamometer upper computer 101 CAN be in CAN signal communication with a tested vehicle 105. The chassis dynamometer upper computer 101 communicates with the chassis dynamometer body 106 through ethernet communication 108. There may be an oncoming wind turbine 107 in front of the vehicle 105 under test.
The chassis dynamometer test system CAN be provided with a data acquisition program module, a data analysis program module and a vehicle parameter control module which are matched with CAN communication, and is combined with a road simulation function module, a vehicle mechanical resistance test module, a constant speed control module, a sweeping speed control module and other function modules of the chassis dynamometer. By applying the vehicle power testing method to the chassis dynamometer testing system and the chassis dynamometer with the modules, an automatic data analysis function can be developed in a standard testing project, and a test report can be automatically generated.
FIG. 2 is a schematic flow chart diagram illustrating a vehicle power testing method according to an embodiment of the present application. The vehicle power testing method of the embodiment comprises the following steps 201-204:
And step 203, sending a debugging control instruction to the tested vehicle. In an embodiment of the application, the debug control instructions may include any one or a combination of: an accelerator pedal depth signal, a brake pedal depth signal, and a motor torque demand signal. In one example, step 203 may be performed in response to an operation by a test operator.
Through the steps 202 and 203, the communication based on the controller area network communication protocol can be ensured to be carried out with the tested vehicle, and the state signal of the tested vehicle and the control of the tested vehicle can be obtained through the communication of the controller area network communication protocol.
And step 204, based on the test content of the vehicle power test, enabling the chassis dynamometer body and the tested vehicle to coordinate to execute the vehicle power test. The test content of the vehicle power test may be selected or entered by a test operator who configures the road test parameter set-up file.
In an embodiment of the present application, step 204 may include the following steps 204a and 204 b:
and 204a, sending a tested vehicle control instruction corresponding to the test content to the tested vehicle, wherein the tested vehicle control instruction is used for setting the mode of the tested vehicle. In an embodiment of the application, the mode of the vehicle under test may comprise any one or a combination of more of the following: the system comprises an N gear mode, a driving mode and a recovery mode, wherein a tested vehicle can be set to one mode by a tested vehicle control command.
And step 204b, sending a chassis dynamometer body control instruction corresponding to the test content to the chassis dynamometer body, wherein the chassis dynamometer body control instruction is used for setting a mode of the chassis dynamometer body. In an embodiment of the present application, the pattern of the chassis dynamometer body may include any one or a combination of more than one of: a road resistance simulation mode, a constant speed mode and a sweeping speed mode, and the chassis dynamometer body control command can set the chassis dynamometer body to be in one of the modes.
Through the steps 204a and 204b, different control modes can be set for the tested vehicle and the chassis dynamometer body according to the specific test content of the vehicle power test, so as to coordinate the disk dynamometer body and the tested vehicle to automatically execute the vehicle power test.
In summary, the vehicle power testing method of the embodiment can perform communication based on the controller area network communication protocol with the vehicle to be tested and coordinate the chassis dynamometer body and the vehicle to be tested, thereby greatly improving the automation level of the vehicle power testing. And moreover, the driving robot can be replaced under the specific working condition of the specific vehicle, so that the test cost is reduced. Meanwhile, various standard test methods (such as GB/T18386.1-2021 electric vehicle energy consumption and driving range test methods) can be better matched, and automatic tests are provided according to the standard methods. And along with the development of networking vehicle, can make the operating condition of vehicle upload to the high in the clouds and save, can cooperate with cloud data, realize the recurrence of actual road operating mode conveniently, be favorable to each system function development of vehicle and repeated verification.
FIG. 3 is a schematic flow chart diagram illustrating a vehicle power testing method according to another embodiment of the present application. The vehicle power testing method of the embodiment comprises the following steps 301-308:
And step 304, sending a debugging control instruction to the tested vehicle. In an embodiment of the application, the debug control instructions may include any one or a combination of: an accelerator pedal depth signal, a brake pedal depth signal, and a motor torque demand signal. In one example, step 203 may be performed in response to an operation by a test operator.
Through the steps 303 and 304, it is ensured that the communication based on the controller area network communication protocol can be performed with the vehicle to be tested, and the status signal of the vehicle to be tested and the control of the vehicle to be tested can be obtained through the communication of the controller area network communication protocol.
And 305, enabling the chassis dynamometer body and the tested vehicle to perform the vehicle power test in a coordinated manner based on the test content of the vehicle power test. The test content of the vehicle power test may be selected or entered by a test operator who configures the road test parameter set-up file.
In an embodiment of the present application, step 305 may include the following steps 305a and 305 b:
and 305a, sending a tested vehicle control instruction corresponding to the test content to the tested vehicle, wherein the tested vehicle control instruction is used for setting the mode of the tested vehicle. In an embodiment of the application, the mode of the vehicle under test may comprise any one or a combination of more of the following: the system comprises an N gear mode, a driving mode and a recovery mode, wherein a tested vehicle can be set to one mode by a tested vehicle control command.
And 305b, sending a chassis dynamometer body control instruction corresponding to the test content to the chassis dynamometer body, wherein the chassis dynamometer body control instruction is used for setting a mode of the chassis dynamometer body. In an embodiment of the present application, the pattern of the chassis dynamometer body may include any one or a combination of more than one of: a road resistance simulation mode, a constant speed mode and a sweeping speed mode, and the chassis dynamometer body control command can set the chassis dynamometer body to be in one of the modes.
Through the steps 305a and 305b, different control modes can be set for the tested vehicle and the chassis dynamometer body according to the specific test content of the vehicle power test, so as to coordinate the disk dynamometer body and the tested vehicle to automatically execute the vehicle power test.
And step 306, receiving a second message of the controller area network communication protocol sent by the detected vehicle when the detected vehicle executes the preset characteristic working condition, and interpreting a second state signal of the detected vehicle according to the second message. In an embodiment of the present application, the preset characteristic working condition may be a chinese working condition, a constant speed 60 working condition, an N-gear standing working condition, an N-gear under-turned on air conditioner refrigeration working condition, or an N-gear under-turned on air conditioner modulation thermal working condition. When the database file of the controller local area network communication protocol of the tested vehicle does not exist, the messages of the tested vehicle under different working conditions are received, and the key state signals are decoded and analyzed according to the change characteristics of the signals under different working conditions. In an embodiment of the application, the second status signal may comprise any one or a combination of: the system comprises a motor rotating speed signal, a vehicle speed signal, a motor torque signal, a battery capacity state signal, a direct current bus voltage signal and a direct current bus current signal.
And 307, receiving a third message of the controller area network communication protocol sent by the detected vehicle, and analyzing the third message based on the second state signal of the detected vehicle to obtain a third state signal of the detected vehicle. In an embodiment of the application, the third status signal may comprise any one or a combination of: the system comprises a motor rotating speed signal, a vehicle speed signal, a motor torque signal, a battery capacity state signal, a direct current bus voltage signal and a direct current bus current signal.
And step 308, automatically generating a test report based on the data of the tested vehicle and the data of the chassis dynamometer body received during the execution of the vehicle power test. After the vehicle power test is finished, a test report is automatically generated according to the received data of the tested vehicle and the chassis dynamometer body, a test engineer does not need to perform data analysis and processing work, and the test automation level and the test efficiency are improved.
In summary, the vehicle power testing method of the embodiment can perform communication based on the controller area network communication protocol with the vehicle to be tested and coordinate the chassis dynamometer body and the vehicle to be tested, thereby greatly improving the automation level of the vehicle power testing. And moreover, the driving robot can be replaced under the specific working condition of the specific vehicle, so that the test cost is reduced. Meanwhile, various standard test methods (such as GB/T18386.1-2021 electric vehicle energy consumption and driving range test methods) can be better matched, and automatic tests are provided according to the standard methods. And along with the development of networking vehicle, can make the operating condition of vehicle upload to the high in the clouds and save, can cooperate with cloud data, realize the recurrence of actual road operating mode conveniently, be favorable to each system function development of vehicle and repeated verification.
The present application further provides a vehicle power test system, including: a memory for storing instructions executable by the processor; and a processor for executing the instructions to implement the method as described above.
FIG. 4 is an architecture diagram illustrating a vehicle power testing system according to an embodiment of the present application. Referring to FIG. 4, the vehicle power test system 400 may include an internal communication bus 401, a Processor (Processor)402, a Read Only Memory (ROM)403, a Random Access Memory (RAM)404, and a communication port 405. When implemented on a personal computer, the vehicle power test system 400 may also include a hard disk 407. The internal communication bus 401 may enable data communication among the components of the vehicle power test system 400. The processor 402 may make the determination and issue the prompt. In some embodiments, processor 402 may be comprised of one or more processors. The communication port 405 may enable data communication of the vehicle power test system 400 with the outside. In some embodiments, the vehicle power test system 400 may send and receive information and data from the network through the communication port 405. The vehicle power test system 400 may also include various forms of program storage units and data storage units, such as a hard disk 407, Read Only Memory (ROM)403 and Random Access Memory (RAM)404, capable of storing various data files for computer processing and/or communication use, as well as possibly program instructions for execution by the processor 402. The processor executes these instructions to implement the main parts of the method. The results processed by the processor are communicated to the user device through the communication port and displayed on the user interface.
It is understood that the vehicle power testing method of the present application is not limited to being implemented by one vehicle power testing system, but may be cooperatively implemented by a plurality of on-line vehicle power testing systems. The online vehicle power test system may be connected and communicate via a local area network or a wide area network.
In one embodiment of the present application, a vehicle power test system may operate in a chassis dynamometer upper computer of a chassis dynamometer test system. Other implementation details of the vehicle power testing system of the present embodiment may refer to the embodiment described in fig. 1, and will not be described herein.
Other implementation details of the vehicle power testing system of the present embodiment may refer to the embodiments described in fig. 2 to 3, and will not be described herein.
The present application also provides a computer readable medium having stored thereon computer program code which, when executed by a processor, implements a method as described above.
For example, the vehicle power testing method of the present application may be implemented as a program of the vehicle power testing method, stored in the memory, and loaded into the processor for execution, so as to implement the vehicle power testing method of the present application.
The vehicle power testing method, when implemented as a computer program, may also be stored as an article of manufacture in a computer readable storage medium. For example, computer-readable storage media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD)), smart cards, and flash memory devices (e.g., electrically Erasable Programmable Read Only Memory (EPROM), card, stick, key drive). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media (and/or storage media) capable of storing, containing, and/or carrying code and/or instructions and/or data.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Aspects of the methods and systems of the present application may be performed entirely by hardware, entirely by software (including firmware, resident software, micro-code, etc.), or by a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), digital signal processing devices (DAPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips … …), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD) … …), smart cards, and flash memory devices (e.g., card, stick, key drive … …).
A computer readable signal medium may comprise a propagated data signal with computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code on a computer readable signal medium may be propagated over any suitable medium, including radio, electrical cable, fiber optic cable, radio frequency signals, or the like, or any combination of the preceding.
Computer program code required for the operation of various portions of the present application may be written in any one or more programming languages, including an object oriented programming language such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C + +, C #, VB.NET, Python, and the like, a conventional programming language such as C, Visual Basic, Fortran 2003, Perl, COBOL 2002, PHP, ABAP, a dynamic programming language such as Python, Ruby, and Groovy, or other programming languages, and the like. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any network, such as a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet), or in a cloud computing environment, or as a service, such as a software as a service (SaaS).
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the application have been discussed in the foregoing disclosure by way of example, it should be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments of the application. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (10)
1. A vehicle power testing method, comprising:
judging whether a database file of a controller area network communication protocol of the tested vehicle exists or not;
if the database file exists, receiving a first message of a controller area network communication protocol sent by the detected vehicle and analyzing the first message to obtain a first state signal of the detected vehicle;
sending a debugging control instruction to the tested vehicle; and
and based on the test content of the vehicle power test, enabling the chassis dynamometer body and the tested vehicle to perform the vehicle power test in a coordinated manner.
2. The method of claim 1, wherein the step of coordinating a chassis dynamometer body and the vehicle under test to perform the vehicle power test based on test content of the vehicle power test comprises:
sending a tested vehicle control instruction corresponding to the test content to the tested vehicle, wherein the tested vehicle control instruction is used for setting the mode of the tested vehicle; and
and sending a chassis dynamometer body control instruction corresponding to the test content to the chassis dynamometer body, wherein the chassis dynamometer body control instruction is used for setting the mode of the chassis dynamometer body.
3. The method of claim 1, further comprising:
and judging whether the communication requirement with the detected vehicle exists or not, and if not, ending the process.
4. The method of claim 1, further comprising:
automatically generating a test report based on the data of the vehicle under test and the data of the chassis dynamometer body received during the execution of the vehicle power test.
5. The method of claim 1, further comprising:
if the database file does not exist, receiving a second message of a controller local area network communication protocol sent by the detected vehicle when the detected vehicle executes a preset characteristic working condition, and interpreting a second state signal of the detected vehicle according to the second message; and
and receiving a third message of a controller area network communication protocol sent by the detected vehicle, and analyzing the third message based on the second state signal of the detected vehicle to obtain a third state signal of the detected vehicle.
6. The method of claim 1, wherein the debug control instructions comprise any one or combination of: an accelerator pedal depth signal, a brake pedal depth signal, and a motor torque demand signal.
7. The method of claim 2, wherein the first status signal comprises any one or a combination of: the system comprises a motor rotating speed signal, a vehicle speed signal, a motor torque signal, a battery capacity state signal, a direct current bus voltage signal and a direct current bus current signal.
8. The method of claim 2, wherein the mode of the vehicle under test comprises any one or a combination of: an N gear mode, a driving mode and a recovery mode; the mode of the chassis dynamometer body comprises any one or combination of more of the following items: a road resistance simulation mode, a constant speed mode, and a sweep speed mode.
9. A vehicle power testing system, comprising:
a memory for storing instructions executable by the processor; and a processor for executing the instructions to implement the method of any one of claims 1-8.
10. A computer-readable medium having stored thereon computer program code which, when executed by a processor, implements the method of any of claims 1-8.
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