CN118348958A - Performance test method and device of vehicle-mounted controller, electric vehicle and medium - Google Patents

Abstract

The present application relates to a performance test method, device, electric vehicle and medium for an on-board controller. The method includes: obtaining a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages; parsing the DBC file to determine routing information composed of the message definition information; based on the routing information, controlling the on-board controller to send CAN messages to the gateway device, and recording the corresponding message sending information and message receiving information to realize the routing forwarding function of the on-board controller; based on the message sending information and the message receiving information, obtaining the performance test results of the on-board controller when executing the routing forwarding function. The use of this method can effectively reduce the performance test cost of the on-board controller, and improve the efficiency and accuracy of the performance test of the on-board controller, which is beneficial to the development and application of electric vehicles.

Description

Performance testing method and device for vehicle controller, electric vehicle and medium

Technical Field

The present application relates to the technical field of vehicle-mounted controllers, and in particular to a performance testing method for a vehicle-mounted controller, a performance testing device for a vehicle-mounted controller, an electric vehicle, a computer-readable storage medium, and a computer program product.

Background technique

In automobile development, the vehicle gateway controller plays a vital role in the internal communication network of electric vehicles. It is equivalent to a transportation hub, responsible for information transmission and processing between different modules and different controllers (ECUs). Before the vehicle gateway controller is applied to electric vehicles, it needs to be subjected to a series of stress simulation tests to detect whether the performance of the vehicle gateway controller meets the use requirements.

At present, the performance of the vehicle gateway controller is generally tested by simulating the performance of the vehicle gateway controller when executing the routing forwarding function. However, in the current simulation test method, multiple test programs need to be performed manually, such as manual parsing of vehicle data and manual analysis of routing forwarding data, which makes the test process very cumbersome and prone to errors, resulting in low efficiency and accuracy of the performance test results of the vehicle controller.

Summary of the invention

In view of the above problems, the present disclosure provides a performance test method for an on-board controller, a performance test device for an on-board controller, an electric vehicle, a computer-readable storage medium, and a computer program product. The technical solution of the present disclosure is as follows:

According to a first aspect of an embodiment of the present disclosure, a performance testing method for a vehicle-mounted controller is provided, comprising:

Obtaining a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages;

Parsing the DBC file to determine routing information composed of the message definition information;

Based on the routing information, control the vehicle-mounted controller to send CAN messages to the gateway device, and record corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle-mounted controller;

Based on the message sending information and the message receiving information, a performance test result of the vehicle-mounted controller when executing the routing forwarding function is obtained.

In an exemplary embodiment, obtaining a performance test result of the vehicle controller when executing the routing forwarding function based on the message sending information and the message receiving information includes:

Based on the message sending information and the message receiving information, the packet loss rate and routing delay of the vehicle controller when performing the routing forwarding function are calculated to obtain a performance test result.

In an exemplary embodiment, the message sending information includes the message sending cycle, message sending time and message sending count of the CAN channel to which each CAN message corresponds; the surrounding receiving information includes the message receiving cycle, message receiving time and message receiving count of the CAN channel to which each CAN message corresponds;

The calculating, based on the message sending information and the message receiving information, the packet loss rate and the routing delay of the vehicle controller when performing the routing forwarding function to obtain the performance test result includes:

Based on the message sending count, the message receiving count, and the statistical data between the message sending cycle and the message receiving cycle, a packet loss rate of the vehicle controller when performing the routing forwarding function is calculated; and

Based on the statistical data between the message sending time and the message receiving time, the routing delay of the vehicle controller when performing the routing forwarding function is calculated.

In an exemplary embodiment, parsing the DBC file to determine routing information composed of the message definition information includes:

Based on a preset function, read out each line of file information in the DBC file;

Match the file information in each row to obtain the message definition information stored in the DBC file; the message definition information at least includes the channel information corresponding to the CAN message, the message name, the unique identifier, the message length, the message sending identifier and the message receiving identifier;

A C language data structure is constructed based on the message definition information, and routing information is represented by array content in the C language data structure; wherein the routing information is used to indicate the routing relationship of the vehicle controller when executing the routing forwarding function.

In an exemplary embodiment, based on the routing information, controlling the vehicle controller to send a CAN message to a gateway device, and recording corresponding message sending information and message receiving information to implement the routing forwarding function of the vehicle controller includes:

Controlling the vehicle-mounted controller to call a preset first function interface to send a plurality of CAN messages to the gateway device according to the routing relationship based on the function interface, and recording corresponding message sending information;

The gateway device is controlled to call a preset second function interface to receive a plurality of CAN messages, and corresponding message reception information is recorded.

In an exemplary embodiment, obtaining a DBC file carrying message definition information includes:

In response to a user triggering a test button corresponding to a target test vehicle model in a graphic interface, a file storage path of a DBC file associated with the target test vehicle model is obtained; wherein different versions of a routing table in a DBC file associated with different types of test vehicle models are different, and the routing table is used to describe the message definition information;

Based on the file storage path, the DBC file corresponding to the CAN channel is extracted from the data folder.

In an exemplary embodiment, after obtaining the performance test result of the vehicle-mounted controller when executing the routing forwarding function, the method further includes:

When the performance test result indicates that the routing delay for the target CAN message is greater than a preset threshold, based on a preset function, the channel information, unique identifier, message sending cycle, message receiving cycle and routing delay data of the target CAN message are written into a preset log file for storage.

According to a second aspect of an embodiment of the present disclosure, a performance testing device for a vehicle-mounted controller is provided, comprising:

A file acquisition module, used to acquire a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages;

A file parsing module, used for parsing the DBC file to determine routing information composed of the message definition information;

A functional testing module, used to control the vehicle-mounted controller to send CAN messages to the gateway device based on the routing information, and record the corresponding message sending information and message receiving information, so as to realize the routing forwarding function of the vehicle-mounted controller;

A test result module is used to obtain a performance test result of the vehicle controller when executing the routing forwarding function based on the message sending information and the message receiving information.

According to a third aspect of an embodiment of the present disclosure, there is provided an electric vehicle, comprising:

A processor and a memory connected to the processor, wherein the memory stores program data, and the processor is used to call the program data stored in the memory to implement the performance testing method of the vehicle controller as described in any one of the above items.

According to the fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes program data. When the program data is executed by a processor of a computer device, the computer device is enabled to execute a performance testing method for a vehicle controller as described in any one of the above items.

According to a fifth aspect of an embodiment of the present disclosure, a computer program product is provided, wherein the computer program product includes program instructions, and when the program instructions are executed by a processor of a computer device, the computer device is enabled to execute a performance testing method for a vehicle controller as described in any one of the above items.

The technical solution provided by the embodiments of the present disclosure brings at least the following beneficial effects:

On the one hand, this solution first parses the DBC file carrying the message definition information to determine the routing information in the DBC file, and then controls the vehicle controller to send CAN messages to the gateway device based on the routing information, and records the corresponding message sending information and message receiving information. Finally, based on the message sending information and the message receiving information, the performance test result for the vehicle controller is obtained, thereby optimizing the performance test process of the vehicle controller, effectively improving the efficiency of the performance test, and reducing the consumption of manpower and material resources; on the other hand, this solution is different from the existing performance test method. By parsing the DBC file, the routing information composed of the message definition information is determined, and the vehicle controller is controlled to send CAN messages to the gateway device based on the routing information, and the corresponding message sending information and the message receiving information are recorded, so that the performance test result of the vehicle controller when executing the routing forwarding function can be obtained by using the message sending information and the message receiving information, which effectively reduces the production cost of the enterprise, and improves the efficiency and accuracy of the performance test of the vehicle controller, which is conducive to the development and application of electric vehicles.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments of the present application or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a diagram showing an application environment of a performance testing method for a vehicle-mounted controller according to an exemplary embodiment.

Fig. 2 is a flow chart showing a performance testing method of a vehicle-mounted controller according to an exemplary embodiment.

Fig. 3 is a flow chart showing a step of extracting a DBC file according to an exemplary embodiment.

Fig. 4 is a module diagram showing steps of parsing a DBC file according to an exemplary embodiment.

Fig. 5 is a module diagram showing steps for implementing a routing forwarding function of a vehicle-mounted controller according to an exemplary embodiment.

Fig. 6 is a structural block diagram of a performance testing device for a vehicle-mounted controller according to an exemplary embodiment.

Fig. 7 is a block diagram of an electric vehicle for testing the performance of an on-board controller according to an exemplary embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

The term "and/or" in the embodiments of the present application refers to any and all possible combinations of one or more of the associated enumerated items. It should also be noted that when used in this specification, "include/comprise" specifies the existence of the stated features, integers, steps, operations, elements and/or components, but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements and/or components and/or their groups.

The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

In addition, although the terms "first", "second", etc. are used many times in this application to describe various operations (or various elements or various applications or various instructions or various data), etc., these operations (or elements or applications or instructions or data) should not be limited by these terms. These terms are only used to distinguish one operation (or element or application or instruction or data) from another operation (or element or application or instruction or data).

The performance test method of the vehicle controller provided in the embodiment of the present application can be applied to the application environment shown in Figure 1. Among them, the terminal 102 communicates with the server 104 through a communication network. The data storage system can store data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers.

In some embodiments, referring to FIG1 , the server 104 obtains a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages; the DBC file is parsed to determine routing information composed of the message definition information; based on the routing information, the vehicle-mounted controller is controlled to send CAN messages to the gateway device, and the corresponding message sending information and message receiving information are recorded to realize the routing forwarding function of the vehicle-mounted controller; based on the message sending information and the message receiving information, a performance test result of the vehicle-mounted controller when executing the routing forwarding function is obtained.

In some embodiments, the terminal 102 (such as a mobile terminal, a fixed terminal) can be implemented in various forms. The terminal 102 can be a mobile terminal including a mobile phone, a smart phone, a laptop, a portable handheld device, a personal digital assistant (PDA), a tablet computer (PAD), etc. The terminal 102 can also be a fixed terminal such as an automated teller machine (ATM), an automatic all-in-one machine, a digital TV, a desktop computer, a fixed computer, etc.

In the following, it is assumed that the terminal 102 is a fixed terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiments disclosed in this application can also be applied to a mobile type terminal 102 if there are operations or elements specifically for mobile purposes.

In some embodiments, the data processing component running on the server 104 may load any of a variety of additional server applications and/or middle-tier applications being executed, such as HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), CGI (Common Gateway Interface), RDBMS (Relational Database Management System), etc.

In some embodiments, the server 104 may be implemented as an independent server or a server cluster consisting of multiple servers. The server 104 may be suitable for running one or more application services or software components that provide the terminal 102 described in the above disclosure.

In some embodiments, the operating system on which the application service or software component runs may include various versions of Microsoft Windows®, Apple Macintosh® and/or Linux operating systems, various commercial or UNIX®-like operating systems (including but not limited to various GNU/Linux operating systems, Google Chrome® OS, etc.) and/or mobile operating systems, such as iOS®, Windows® Phone, Android® OS, BlackBerry® OS, Palm® OS operating systems, and other online operating systems or offline operating systems, without specific limitation here.

In some embodiments, as shown in FIG. 2 , a performance test method for a vehicle controller is provided. The method is described by taking the application of the method to the server 104 in FIG. 1 as an example. The method includes the following steps:

Step S11: Obtain a DBC file carrying message definition information.

The message definition information is definition information used to send and receive CAN messages.

Among them, the DBC file is used to carry the Controller Area Network (CAN) message description information. In the automotive industry and other fields, the CAN bus is a commonly used communication protocol for communication between control units.

In one embodiment, the DBC file contains information such as messages, signals, nodes, and communication rates used in the CAN network to facilitate data exchange and communication between different devices.

In one embodiment, the DBC file is provided by the vehicle manufacturer and is an important basis for ensuring that the vehicle controller (such as a gateway controller) works correctly. The source of the routing table in the vehicle controller is usually the DBC file, which is a standard data format file that contains the definition of all signals in the vehicle network, such as their ID, period, size, and name. This information is used to generate a routing table to instruct the vehicle controller on how to process and forward data packets.

In one embodiment, the DBC file includes a variety of basic elements, keywords, and data fields to express its specific information meaning.

In some embodiments, the base elements include:

Version, which specifies the format version of the DBC file to ensure compatibility.

Nodes, which lists the number and names of nodes on the CAN bus. Each node represents an ECU (electronic control unit) and its node name is unique.

Messages, which describe the messages transmitted on the CAN bus, including information such as its ID, name, length and period.

Signals, which defines the name, length, position, unit, factor, range and other detailed information of each signal in each CAN message.

Environment Variables, which can define environment variables to represent constant or variable values.

Value Tables, which create mapping tables between signal values and actual physical values to facilitate data parsing.

Comments: The comments section is used to record additional information or instructions about the CAN bus.

In some embodiments, keywords include:

BU_ followed by a series of space-delimited node names that must be unique throughout the DBC file.

BO_, which refers to a message or packet, including its attributes and related signals.

SG_, which is used to define the properties of a single signal, such as its position in the message and the number of bits it occupies.

In some embodiments, the data field includes: The DBC file can process 8-byte hexadecimal CAN messages and raw CAN data. The data field of a CAN frame can contain up to 8 single-byte values, 64 single-bit values, or a 64-bit value, or any combination of these values.

In one embodiment, the CAN message is a bit sequence used to describe a CAN signal sent by a target vehicle.

In one embodiment, a CAN message is a data unit transmitted on a CAN bus, including information such as a sender identifier, a control field, a data field, and a check field. A CAN message can carry one or more CAN signals. A CAN signal is a data segment in a CAN message, used to represent specific information or parameters. A CAN message can contain multiple CAN signals, each of which has its own start bit, length, data type, and value field.

In practical applications, CAN signals are usually used to represent specific information such as sensor data and actuator control commands. CAN messages carry one or more CAN signals to achieve data exchange and communication between different control units. By parsing the CAN signals in the CAN messages, the receiver can obtain the specific data content sent by the sender, thereby achieving real-time communication and data exchange between systems.

Step S12: Parse the DBC file to determine routing information consisting of message definition information.

In some embodiments, the server may first read the DBC file, such as using a file reading function in a programming language (such as C language, Python, etc.) to open and read the DBC file, so as to read the content of the DBC file into a data structure in memory for subsequent text scanning and analysis; and then scan the text, that is, traverse the read DBC file content and scan the text line by line, wherein during the scanning process, a regular expression may be used to match the definition of the CAN message to determine the message information of the CAN message, that is, during the scanning process, a line containing a CAN message definition may be found (for example, filtering a line beginning with "BO_", wherein the content after the keyword "BO_" is a unique identifier of the message, and then the message name, message length, and send/receive flag are sequentially followed), so that by matching these lines, the message definition information of the CAN message may be determined, and the message definition information is used to form a routing table in the DBC file; finally, based on the message definition information in the routing table, routing information for characterizing the routing relationship is generated, and the routing information is imported into the program for subsequent processing and use.

Among them, in the development of electric vehicles, the common storage format of the routing table is the DBC file, that is, the server saves the message definition information of each CAN channel in the corresponding DBC file in the form of a routing table in advance.

The routing information representing the routing relationship is used to indicate which CAN channel a target CAN message belongs to, at what sending cycle it is sent, and to which CAN channel (several) it is finally sent.

Step S13: Based on the routing information, control the vehicle controller to send CAN messages to the gateway device, and record the corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle controller.

Specifically, on one hand, the server can control the vehicle controller to call the preset function interface to continuously send multiple CAN messages to the gateway device according to the routing relationship corresponding to the routing information, and record the corresponding message sending information. On the other hand, the server can control the gateway device to call the preset function interface to receive CAN messages according to the routing relationship corresponding to the routing information, and record the corresponding message receiving information.

In one embodiment, the message sending information includes the message sending cycle, message sending time and message sending count of the CAN channel to which each CAN message belongs; and the surrounding receiving information includes the message receiving cycle, message receiving time and message receiving count of the CAN channel to which each CAN message belongs.

Step S14: Based on the message sending information and the message receiving information, a performance test result of the vehicle controller when executing the routing forwarding function is obtained.

Specifically, the server calculates the packet loss rate and routing delay of the vehicle controller when performing the routing forwarding function based on the message sending information and the message receiving information to obtain the performance test result.

Among them, the process in which the server calculates the packet loss rate of the vehicle controller when performing the routing forwarding function based on the message sending information and the message receiving information may include the following steps: based on the message sending count, the message receiving count, the statistical data between the message sending cycle and the message receiving cycle, the packet loss rate of the vehicle controller when performing the routing forwarding function is calculated.

In an exemplary embodiment, the server may calculate the packet loss rate of the vehicle controller when performing the routing forwarding function based on the following packet loss rate calculation formula:

lost=rxCount-txCount*txPeriod/rxCount.

Among them, lose is the packet loss rate, rxCount is the message receiving count, txCount is the message sending count, and txPeriod is the message sending period.

Among them, the process of the server calculating the routing delay of the vehicle controller when performing the routing forwarding function based on the message sending information and the message receiving information may include the following steps: based on the statistical data between the message sending time and the message receiving time, the routing delay of the vehicle controller when performing the routing forwarding function is calculated.

In an exemplary embodiment, the server may calculate the routing delay of the vehicle controller when performing the routing forwarding function based on the following routing delay calculation formula:

difLatency = (rxTime - txTime) / 1000000.

Among them, difLatency is the routing delay (converted from nanoseconds to milliseconds), rxTime is the message receiving time, and txTime is the message sending time.

In some embodiments, the server can perform performance evaluation, optimization guidance, and quality control on the vehicle controller based on the performance test results. Specifically, in the first aspect, the server can perform quantitative evaluation of the routing performance of vehicle controllers of different models and versions to help developers understand the performance of their products under high load conditions; in the second aspect, the server uses packet loss rate and routing delay as measurement indicators to provide data support and improvement direction for further optimization of the vehicle controller; in the third aspect, before the relevant vehicle products are released, the vehicle controller is stress tested to ensure the reliability of the vehicle controller under extreme conditions, thereby improving product quality.

During the performance test of the above-mentioned on-board controller, on the one hand, this solution first parses the DBC file carrying the message definition information to determine the routing information in the DBC file, and then controls the on-board controller to send CAN messages to the gateway device based on the routing information, and records the corresponding message sending information and message receiving information, and finally obtains the performance test results for the on-board controller based on the message sending information and the message receiving information, thereby optimizing the performance test process of the on-board controller, effectively improving the efficiency of the performance test, and reducing the consumption of manpower and material resources; on the other hand, this solution is different from the existing performance test method, by parsing the DBC file to determine the routing information composed of the message definition information, so as to control the on-board controller to send CAN messages to the gateway device based on the routing information, and record the corresponding message sending information and message receiving information, so that the performance test results of the on-board controller when executing the routing forwarding function can be obtained by using the message sending information and the message receiving information, which effectively reduces the production cost of the enterprise, and improves the efficiency and accuracy of the performance test of the on-board controller, which is conducive to the development and application of electric vehicles.

Those skilled in the art can understand that in the above method of the specific implementation, the disclosed method can be implemented in a more specific manner. For example, the above described server controls the vehicle controller to send CAN messages to the gateway device based on the routing information, and records the corresponding message sending information and message receiving information to implement the routing forwarding function of the vehicle controller. The implementation method is only illustrative.

The performance test method of the vehicle controller disclosed in this application can be applied to automobile development tools, such as Vehicle Spy3. The automobile development tool integrates functions such as diagnosis, node/ECU (Electronic Control Unit) simulation, data acquisition, automatic testing and in-vehicle communication network monitoring, and can communicate with various vehicle ECUs by connecting hardware devices (such as gateway devices).

In some embodiments, the automotive development tool includes a hardware connection function (SetUp-HardWare), a message viewing page (Spy Networks-Messages), a graphic panel (Measurement-Graphical Panels), a reusable software module (Function Block), a data variable (Application Signal) and a C code interface (C Codelnterface).

Among them, Function Block can run the corresponding scripts configured by engineers and execute them automatically to complete the automatic execution tasks.

Among them, the hardware connection function is used to connect automotive development tools with hardware devices (such as gateway devices).

Among them, the graphical interface is the user interface or graphical interface in the automotive development tool, which allows engineers to customize the user interface and supports adding many different types of tools, such as graphs, bar-graphs, transmit buttons, drop-down menus, test buttons, meters, knobs, displays (LEDs/lights), text displays, and numeric entry boxes. Each tool can be resized and placed anywhere on the panel. A group of tools and their test buttons can be selected and their alignment can be set. After setting the display, the panel can be locked to prevent the tool position from changing due to mouse movement. Engineers can create a collection of graphic panels and distribute them to other people.

Application Signal is used to store variables, which can save user-set values or calculated signals that do not necessarily need to be inferred from network messages. For example, when a signal is created and associated with a function generator, its value will change with the function generator.

Among them, the C code interface provides a way to communicate with the communication protocol that the automotive development tool works on using C code. Using C code in the automotive development tool can reuse all the functions of the automotive development tool, such as: message decoding, message reception, database decoding, signal display, and buffer capture. The C code interface supports event-based and step-by-step process type programming.

In one embodiment, the server may execute the following process steps to execute the various functions of the automotive development tool in this application, as follows:

Step 1: Add signal variables in the Application Signal function. The added variables will be used as variables in the CCode Interface and transferred to the code by the values selected by the user in the system interface, such as variables representing the start signal, load, number of packet losses, delay, and storage path of the test vehicle model dbc file.

Step 2: Add the signal variable in step 1 to C Code Interface-Edit-event handlercode, and then C Code Interface will generate C code function variables and interfaces for the corresponding messages, so that engineers can control the input and output of the corresponding variables by calling these interfaces in C code; among them, the generated information response function interface is managed by the button of the graphic interface. When the engineer clicks the button of the graphic interface, the function interface in the corresponding C code will be executed to realize the logic expected by the engineer.

Step 3: In Graphical Panels, add various buttons required to implement the functions of the automotive development tool, and associate these buttons with the corresponding signal messages and signal variables in the property setting function-signal function of each button to realize the button control of the entire automotive development tool function and the output function in the display program.

In some embodiments, the various functions of the automotive development tool are implemented as follows:

Test ECU function: Add a drop down list button in the graphical interface, edit the following options in its property page, add supported gateway controllers, associate its value with the variable GWTstSW, and switch different gateway controller programs according to the variable GWTstSW in the C code of CCodeInterface.

Test vehicle model function: Different models and versions of routing table DBC files are different. The drop down list button is used to select different DBCs to import into the C code of CCodeInterface. Add a drop downlist button in the image interface, edit the following options on its property page, and add the storage path of the routing table DBC file that supports testing. Associate its value with the variable GWTstVehicleType, read the DBC file of the corresponding routing table according to the value of the variable GWTstVehicleType in the C code of CCodeInterface, and parse the routing relationship of the message and the sending cycle of different messages according to the format of the DBC file.

Start running function: Add an on off button to control the program running, and associate it with the C code that controls CCodeInterface in the variable GWTset On Off to start execution.

Channel name acquisition function: typed in the interface, different DBC files may have slightly different names for each CAN channel.

Current load calculation function: Add a TextDisplay button for each CAN channel, and set its associated model to the "Percent Use" of the corresponding CAN channel in the button's property page. This function is automatically calculated by the hardware device.

Maximum load recording function: record the maximum load value during program operation.

Packet loss statistics function: count the number of packet losses in routing forwarding for each CAN channel. Add a TextDisplay button to each CAN channel and associate the variable MsgRouteLost in its property page. The button has a numerical display function, which is used to display the load array variable MsgRouteLost added in the variable. The value of the array is calculated in the C code of the C CodeInterface.

The variable MsgRouteLost indicates the situation of message loss. In a communication system, if a sent message fails to reach the target node successfully, it is considered as message loss. This may be caused by network failure, transmission error, node failure, etc. Message loss may cause data inconsistency in the communication system, so when designing a communication system, it is necessary to consider the situation of message loss and take corresponding measures to deal with it.

Latency statistics function: Statistics the latency of each CAN channel routing forwarding. Add a TextDisplay button for each CAN channel and associate the variable MsgRouteLatency in its property page. This button has a numerical display function, which is used to display the latency array variable MsgRouteLatency added in the variable. The value of this array is calculated in the C code of C CodeInterface.

The variable MsgRouteLatency represents the delay time of message transmission. In a communication system, there will be a certain delay in the transmission process of a message from the sender to the receiver. This delay time is the message transmission delay. The message transmission delay is affected by many factors, including network congestion, transmission distance, transmission medium, etc. In a real-time communication system, the message transmission delay time usually needs to be controlled within a certain range to ensure the real-time performance and reliability of the system.

Increase load function: used to display the load value increased by manual load control.

Load control function: used to implement the load increase and decrease function for each CAN channel to simulate and test the performance of the gateway controller under different load conditions. Add a TextDisplay button to each CAN channel and associate the variable NetworkLoadCtr in its property page. At the same time, the button has a numerical display function to display the load array variable NetworkLoadCtr added in the variable. The value of this array is used in the C code of CCodeInterface to control the amount of load messages sent.

The variable NetworkLoadCtr represents the network load controller. In a network communication system, the network load controller is usually used to monitor and manage the network load to ensure the rational use of network resources and the stability of system performance. The network load controller can dynamically adjust the data transmission rate, optimize the data transmission path, and implement load balancing according to the network traffic situation, thereby effectively managing the network load and improving the reliability and efficiency of the network.

Among them, when the engineer increases or decreases the value of the load control in the graphical interface, the corresponding variable NetworkLoadCtr array of the program changes, and judges the size of the current CAN channel load and the input load. ① If the current CAN channel load is less than the size of the input load, the sending rate of the load message is increased; ② If the current CAN channel load is greater than the size of the input load, the sending rate of the load message is reduced.

Among them, the load message is a message specially filled in the C program to control the load. The message CANid is obtained from the routing table, and the length is uniformly 8 (CAN)/64 (CANFD). Each bit of the data is automatically filled with a value of 0x00-0xff.

In an exemplary embodiment, refer to FIG3 , which is a flow chart of extracting a DBC file in an embodiment of the present application. In step S11 , the process of the server obtaining a DBC file carrying message definition information specifically includes the following steps:

Step S111: In response to the user triggering a test button corresponding to a target test vehicle model in the graphic interface, a file storage path of a DBC file associated with the target test vehicle model is obtained.

Among them, different types of test vehicle models correspond to different versions of the routing table in the DBC file, and the routing table is used to describe the message definition information.

Step S112: extracting the DBC file corresponding to the CAN channel from the data folder based on the file storage path.

Specifically, the engineer first triggers the test button corresponding to the target test vehicle model in the graphic interface, and then the server obtains the file storage path of the DBC file associated with the target test vehicle model; finally, the server extracts the DBC file corresponding to the CAN channel from the data folder based on the file storage path.

In an exemplary embodiment, refer to FIG4, which is a flow chart of an embodiment of parsing a DBC file in the present application. In step S12, the server parses the DBC file to determine the routing information composed of the message definition information, which specifically includes the following steps:

Step S121: Based on a preset function, read out each line of file information in the DBC file.

In some embodiments, the server may input the file storage path of the DBC file into the fopen() function, so that the fopen() function opens the DBC file and reads each line of file information in the DBC file line by line through the fget method.

Step S122: performing information matching on each line of file information to obtain the message definition information stored in the DBC file.

The message definition information at least includes the channel information corresponding to the CAN message, the message name, the unique identifier, the message length, the message sending identifier and the message receiving identifier.

In some embodiments, the server may use the if (line.substr(0, 3) == "BU_") statement to filter out the lines starting with "BU_" from the file information to obtain the channel information corresponding to the CAN message. The CAN channel is the content after the keyword "BU_", such as BU_: Node_1 GW, which represents the Node_1 channel.

In some embodiments, the server can use the if (line.substr(0, 3) == "BO_") statement to filter out the lines starting with "BO_" from the file information. The content after the keyword "BO_" is a unique identifier, followed by the message name, message length, and message sending identifier/message receiving identifier. For example, the content parsed from BO_ 261 VCU1_vehicleTorque_105:8 Node_1 is: canid=261, message name VCU1_vehicleTorque_105, message length=8, and the message is sent from the CAN channel of Node_1. If the message is received by the channel, the final send/receive standard is "GW".

In some embodiments, the server can use the if (line.substr(0, 3) == "BA_") statement to filter out the lines starting with "BA_" from the file information to obtain the message sending cycle corresponding to the CAN message. Among them, the content after the keyword "BA_" is the message sending cycle, such as BA_ "GenMsgCycleTime" BO_ 324 10; represents that the message GenMsgCycleTime cycle is 10ms.

Step S123: construct a C language data structure based on the message definition information, and represent the routing information through the array content in the C language data structure.

The routing information is used to indicate the routing relationship of the vehicle controller when performing the routing forwarding function.

Among them, the server can better organize and manage the message information in CAN communication by defining the data structure corresponding to the CAN message, so as to facilitate the program to parse and process the CAN message data. In the actual embedded system development, the data structure corresponding to the CAN message is usually used to describe various states and parameter information of electric vehicles so that the system can accurately parse and process the CAN message data.

In some embodiments, the server may first use a C language structure to simulate the creation of a container map, wherein the key of the container map is a unique identifier of each CAN message, namely, the message ID, and the value of the container map is an array, the array content of which is the channel name, message length, message cycle, and message receive/send flag on the CAN channel on which it appears; then, the server stores all parsed message definition information into the map according to the unique identifier of the CAN message to obtain a C language data structure for characterizing routing information, thereby being able to obtain from the value in the data structure which CAN channel the CAN message is sent from, at what message cycle it is sent, and to which CAN channel(s) the CAN message is transmitted.

In an exemplary embodiment, refer to FIG5 , which is a flow chart of an embodiment of implementing the routing forwarding function of the vehicle controller in the present application. In step S13, the server controls the vehicle controller to send CAN messages to the gateway device based on the routing information, and records the corresponding message sending information and message receiving information to implement the routing forwarding function of the vehicle controller, which specifically includes the following steps:

Step S131: Control the vehicle controller to call a preset first function interface to send multiple CAN messages to the gateway device according to the routing relationship based on the function interface, and record the corresponding message sending information.

Specifically, the server can control the vehicle controller to call a preset first function interface to continuously send multiple CAN messages to the gateway device according to the routing relationship corresponding to the routing information, and record the corresponding message sending information.

The server can simulate the vehicle controller to send CAN messages to the gateway device to test whether it can forward CAN messages. The server can control the associated variable Network LoadCtr to increase or decrease the frequency of message sending according to the real-time load of the vehicle control. The frequency of message sending can be controlled using a millisecond timer.

In one embodiment, the server can control the vehicle controller to call the Generic Message Transmit() function interface corresponding to the C code framework in the C Code Interface to continuously send CAN messages to the gateway device, and when the sending is successful, the message sending count txCount, message sending period txPeriod and message sending time txTime of the CAN channel to which the CAN message belongs are recorded in the structure variable.

In the process of sending the CAN message, the count value of the sent CAN message can be automatically filled with a value of 0x00-0xFF.

Step S132: Control the gateway device to call a preset second function interface to receive multiple CAN messages, and record corresponding message reception information.

Specifically, the server can control the gateway device to call the preset second function interface to receive each CAN message sent by the vehicle controller according to the routing relationship corresponding to the routing information, and record the corresponding message reception information.

In one embodiment, the server can control the gateway device to call the Every Message() function interface corresponding to the C code framework in the C Code Interface to receive each CAN message sent by the vehicle controller. The function interface automatically executes the corresponding message logic every time the gateway device captures a CAN message, and records the message receiving period rxPeriod of the CAN channel to which each CAN message received corresponds, the received message receiving time rxTime, and the message receiving count rxCount. The count is increased by one every time the gateway device receives a CAN message.

In an exemplary embodiment, after the server obtains the performance test results when executing the routing forwarding function for the on-board controller, the following steps may also be included: when the performance test results indicate that the routing delay for the target CAN message is greater than a preset threshold, based on a preset function, the channel information, unique identifier, message sending period, message receiving period and routing delay data of the target CAN message are written into a preset log file for storage.

Specifically, when the server calculates that the routing delay for a target CAN message is greater than a preset threshold, it indicates that an abnormal routing delay occurs when the on-board controller performs the routing forwarding function for the target CAN message. The server automatically uses a preset function (such as the fwrite function) to write the CAN channel information, unique identifier, message sending cycle, message receiving cycle and routing delay data of the target CAN message into the log file for storage, so that engineers can track the data later, thereby preventing potential failures before actual deployment.

In another exemplary embodiment, after the server obtains the performance test results when executing the routing forwarding function for the vehicle-mounted controller, the following steps may also be included: based on a preset function, the channel information, unique identifier, and performance test results of each CAN message are written into a preset log file for storage.

Specifically, when the on-board controller completes the routing and forwarding function and obtains the corresponding performance test results, it indicates that the on-board controller has completed the routing and forwarding function for all CAN messages. The server automatically uses a preset function (such as the fwrite function) to write the CAN channel information, unique identifier and performance test results of each CAN message into the log file for storage, so that engineers can track the data later, thereby preventing potential failures before actual deployment.

In this way, on the one hand, this solution first parses the DBC file carrying the message definition information to determine the routing information in the DBC file, and then controls the vehicle controller to send CAN messages to the gateway device based on the routing information, and records the corresponding message sending information and message receiving information. Finally, based on the message sending information and the message receiving information, the performance test result for the vehicle controller is obtained, thereby optimizing the performance test process of the vehicle controller, effectively improving the efficiency of the performance test, and reducing the consumption of manpower and material resources; on the other hand, this solution is different from the existing performance test method. By parsing the DBC file, the routing information composed of the message definition information is determined, and the vehicle controller is controlled to send CAN messages to the gateway device based on the routing information, and the corresponding message sending information and the message receiving information are recorded, so that the performance test result of the vehicle controller when executing the routing forwarding function can be obtained by using the message sending information and the message receiving information, which effectively reduces the production cost of the enterprise, and improves the efficiency and accuracy of the performance test of the vehicle controller, which is conducive to the development and application of electric vehicles.

It should be understood that, although the various steps in the accompanying drawings of Fig. 2-Fig. 5 are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be performed in other orders. Moreover, at least a portion of the steps in Fig. 2-Fig. 5 may include a plurality of steps or a plurality of stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times, and the execution order of these steps or stages is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the steps or stages in other steps.

It can be understood that the same/similar parts between the various embodiments of the above method in this specification can refer to each other, and each embodiment focuses on the differences from other embodiments. For related points, please refer to the description of other method embodiments.

Fig. 6 is a structural block diagram of a performance test device for a vehicle-mounted controller provided in an embodiment of the present application. Referring to Fig. 6 , the performance test device 10 for a vehicle-mounted controller includes: a file acquisition module 11 , a file parsing module 12 , a function test module 13 and a test result module 14 .

The file acquisition module 11 is used to acquire a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages;

The file parsing module 12 is used to parse the DBC file and determine the routing information composed of the message definition information;

The function test module 13 is used to control the vehicle controller to send CAN messages to the gateway device based on the routing information, and record the corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle controller;

The test result module 14 is used to obtain the performance test result of the vehicle controller when executing the routing forwarding function based on the message sending information and the message receiving information.

In one embodiment, the idle operation data includes power generation speed data, ambient temperature data and idle operation time;

In the aspect of obtaining the performance test result of the vehicle-mounted controller when executing the routing forwarding function based on the message sending information and the message receiving information, the performance test device 10 of the vehicle-mounted controller is further used to perform:

Based on the message sending information and the message receiving information, the packet loss rate and routing delay of the vehicle controller when performing the routing forwarding function are calculated to obtain a performance test result.

In one embodiment, the message sending information includes the message sending cycle, message sending time and message sending count of the CAN channel to which each CAN message corresponds; the surrounding receiving information includes the message receiving cycle, message receiving time and message receiving count of the CAN channel to which each CAN message corresponds;

In the aspect of calculating the packet loss rate and routing delay of the vehicle-mounted controller when performing the routing forwarding function based on the message sending information and the message receiving information to obtain the performance test result, the performance testing device 10 of the vehicle-mounted controller is also used to perform:

Based on the message sending count, the message receiving count, and the statistical data between the message sending cycle and the message receiving cycle, a packet loss rate of the vehicle controller when performing the routing forwarding function is calculated; and

Based on the statistical data between the message sending time and the message receiving time, the routing delay of the vehicle controller when performing the routing forwarding function is calculated.

In one embodiment, in the aspect of parsing the DBC file to determine the routing information composed of the message definition information, the performance testing device 10 of the vehicle controller is further used to perform:

Based on a preset function, read out each line of file information in the DBC file;

Match the file information in each row to obtain the message definition information stored in the DBC file; the message definition information at least includes the channel information corresponding to the CAN message, the message name, the unique identifier, the message length, the message sending identifier and the message receiving identifier;

A C language data structure is constructed based on the message definition information, and routing information is represented by array content in the C language data structure; wherein the routing information is used to indicate the routing relationship of the vehicle controller when executing the routing forwarding function.

In one embodiment, in the aspect of controlling the vehicle-mounted controller to send CAN messages to the gateway device based on the routing information, and recording the corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle-mounted controller, the performance testing device 10 of the vehicle-mounted controller is further used to perform:

Controlling the vehicle-mounted controller to call a preset first function interface to send a plurality of CAN messages to the gateway device according to the routing relationship based on the function interface, and recording corresponding message sending information;

The gateway device is controlled to call a preset second function interface to receive a plurality of CAN messages, and corresponding message reception information is recorded.

In one embodiment, in the aspect of obtaining the DBC file carrying the message definition information, the performance testing device 10 of the vehicle-mounted controller is further used to execute:

In response to a user triggering a test button corresponding to a target test vehicle model in a graphic interface, a file storage path of a DBC file associated with the target test vehicle model is obtained; wherein different versions of a routing table in a DBC file associated with different types of test vehicle models are different, and the routing table is used to describe the message definition information;

Based on the file storage path, the DBC file corresponding to the CAN channel is extracted from the data folder.

In one embodiment, after obtaining the performance test result of the vehicle-mounted controller when executing the routing forwarding function, the performance test device 10 of the vehicle-mounted controller is further used to perform:

When the performance test result indicates that the routing delay for the target CAN message is greater than a preset threshold, based on a preset function, the channel information, unique identifier, message sending cycle, message receiving cycle and routing delay data of the target CAN message are written into a preset log file for storage.

FIG7 is a block diagram of an electric vehicle provided in an embodiment of the present application. Referring to FIG7, the electric vehicle includes a processor, a memory, an input/output interface (Input/Output, referred to as I/O) and a communication interface. Among them, the processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. Among them, the processor of the electric vehicle is used to provide computing and control capabilities. The memory of the electric vehicle includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the electric vehicle is used to store mileage maintenance data of the electric vehicle. The input/output interface of the electric vehicle is used to exchange information between the processor and an external device. The communication interface of the electric vehicle is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the performance test method of the vehicle controller as described above is implemented.

In some embodiments, the electric vehicle is an electronic device in which a computing system can run one or more operating systems, including any of the operating systems discussed above and any commercially available server operating systems. The electric vehicle can also run any of a variety of additional server applications and/or middle-tier applications, including HTTP (Hypertext Transfer Protocol) servers, FTP (File Transfer Protocol) servers, CGI (Common Gateway Interface) servers, super servers, database servers, etc. Exemplary database servers include, but are not limited to, database servers commercially available from (International Business Machines) and the like.

In some embodiments, the processor generally controls the overall operation of the electric vehicle, such as operations associated with display, data processing, data communication, and recording operations. The processor may include one or more processor components to execute a computer program to perform all or part of the steps of the above method. In addition, the processor component may include one or more modules to facilitate interaction between the processor component and other components. For example, the processor component may include a multimedia module to facilitate the interaction between the user's electric vehicle and the processor using the multimedia component to control.

An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the performance test method of the vehicle-mounted controller as described above is implemented.

If the integrated units of the functional units in the various embodiments of the present application are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer-readable storage medium includes several instructions in a computer program to enable a computer device (which can be a personal computer, a system server, or a network device, etc.), an electronic device (such as MP3, MP4, etc., or a smart terminal such as a mobile phone, a tablet computer, a wearable device, or a desktop computer, etc.) or a processor to execute all or part of the steps of the various implementation methods of the present application.

An embodiment of the present application provides a computer program product, which includes program instructions, and the program instructions can be executed by a processor of an electric vehicle to implement the performance test method of the vehicle controller as described above.

Those skilled in the art should understand that the embodiments of the present application may provide a performance test method for an on-board controller, a performance test device for an on-board controller, an electric vehicle, a computer-readable storage medium, or a computer program product. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer program instructions (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

The present application is described with reference to the flow chart and/or block diagram of the performance test method of the vehicle-mounted controller, the performance test device of the vehicle-mounted controller, the electric vehicle, the computer-readable storage medium or the computer program product according to the embodiment of the present application. It should be understood that each process and/or box in the flow chart and/or block diagram, and the combination of the process and/or box in the flow chart and/or block diagram can be realized by a computer program product. These computer program products can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the program instructions executed by the processor of the computer or other programmable data processing device generate a device for realizing the function specified in one process or multiple processes in the flow chart and/or one box or multiple boxes in the block diagram.

These computer program products may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the program instructions stored in the computer program product produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the program instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

It should be noted that the above-mentioned various methods, devices, electronic devices, computer-readable storage media, computer program products, etc. may also include other implementation methods according to the description of the method embodiments. The specific implementation methods can refer to the description of the relevant method embodiments, and will not be described one by one here.

Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A performance testing method for a vehicle-mounted controller, characterized in that the method comprises: Obtaining a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages; Parsing the DBC file to determine routing information composed of the message definition information; Based on the routing information, control the vehicle-mounted controller to send CAN messages to the gateway device, and record corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle-mounted controller; Based on the message sending information and the message receiving information, a performance test result of the vehicle-mounted controller when executing the routing forwarding function is obtained. 2. The method according to claim 1, characterized in that the obtaining of the performance test result of the vehicle controller when executing the routing forwarding function based on the message sending information and the message receiving information comprises: Based on the message sending information and the message receiving information, the packet loss rate and routing delay of the vehicle controller when performing the routing forwarding function are calculated to obtain a performance test result. 3. The method according to claim 2, characterized in that the message sending information includes the message sending cycle, message sending time and message sending count of the CAN channel to which each CAN message corresponds; the surrounding receiving information includes the message receiving cycle, message receiving time and message receiving count of the CAN channel to which each CAN message corresponds; The calculating, based on the message sending information and the message receiving information, the packet loss rate and the routing delay of the vehicle controller when performing the routing forwarding function to obtain the performance test result includes: Based on the message sending count, the message receiving count, and the statistical data between the message sending cycle and the message receiving cycle, a packet loss rate of the vehicle controller when performing the routing forwarding function is calculated; and Based on the statistical data between the message sending time and the message receiving time, the routing delay of the vehicle controller when performing the routing forwarding function is calculated. 4. The method according to claim 1, wherein the step of parsing the DBC file to determine the routing information composed of the message definition information comprises: Based on a preset function, read out each line of file information in the DBC file; Match the file information in each row to obtain the message definition information stored in the DBC file; the message definition information at least includes the channel information corresponding to the CAN message, the message name, the unique identifier, the message length, the message sending identifier and the message receiving identifier; A C language data structure is constructed based on the message definition information, and routing information is represented by array content in the C language data structure; wherein the routing information is used to indicate the routing relationship of the vehicle controller when executing the routing forwarding function. 5. The method according to claim 4, characterized in that, based on the routing information, controlling the vehicle controller to send CAN messages to the gateway device, and recording the corresponding message sending information and message receiving information to realize the routing forwarding function of the vehicle controller, comprises: Controlling the vehicle-mounted controller to call a preset first function interface to send a plurality of CAN messages to the gateway device according to the routing relationship based on the function interface, and recording corresponding message sending information; The gateway device is controlled to call a preset second function interface to receive a plurality of CAN messages, and corresponding message reception information is recorded. 6. The method according to claim 1, characterized in that the step of obtaining a DBC file carrying message definition information comprises: In response to a user triggering a test button corresponding to a target test vehicle model in a graphic interface, a file storage path of a DBC file associated with the target test vehicle model is obtained; wherein different versions of a routing table in a DBC file associated with different types of test vehicle models are different, and the routing table is used to describe the message definition information; Based on the file storage path, the DBC file corresponding to the CAN channel is extracted from the data folder. 7. The method according to claim 1, characterized in that after obtaining the performance test result of the vehicle controller when executing the routing forwarding function, it also includes: When the performance test result indicates that the routing delay for the target CAN message is greater than a preset threshold, based on a preset function, the channel information, unique identifier, message sending cycle, message receiving cycle and routing delay data of the target CAN message are written into a preset log file for storage. 8. A performance test device for a vehicle-mounted controller, characterized in that the device comprises: A file acquisition module, used to acquire a DBC file carrying message definition information; the message definition information is definition information for sending and receiving CAN messages; A file parsing module, used for parsing the DBC file to determine routing information composed of the message definition information; A functional testing module, used to control the vehicle-mounted controller to send CAN messages to the gateway device based on the routing information, and record the corresponding message sending information and message receiving information, so as to realize the routing forwarding function of the vehicle-mounted controller; A test result module is used to obtain a performance test result of the vehicle controller when executing the routing forwarding function based on the message sending information and the message receiving information. 9. An electric vehicle, characterized in that the electric vehicle comprises a processor and a memory connected to the processor, wherein program data is stored in the memory, and the processor is used to call the program data stored in the memory to execute the method as described in any one of claims 1-7. 10. A computer-readable storage medium having program instructions stored therein, wherein the program instructions, when executed by a processor, implement the method according to any one of claims 1 to 7.