64 results about "Automotive software" patented technology

In an aspect, systems and methods of connected nodes, including electronic control units (ECUs) in a vehicle, integrate remote direct memory access (RDMA) capabilities with time-sensitive networking (TSN) traffic shaper configurations in a manner that guarantees lossless, bounded-latency critical traffic (CT) streams, while also allowing for different classes of traffic to flow through the connected nodes. In another aspect, mechanisms are introduced to enable an automotive software framework (e.g., classic AUTOSAR) to support RDMA communications.

The invention relates to the technical field of automobile software testing, and discloses a software test case automatic generation method and system based on a language AI large model, and the method comprises the steps: extracting a position path, a function name and a test design direction content from user input information, generating a configuration file through a preset Prompt template, and calling the AI large model to interpret the user intention. Function, performance and regulation analysis tasks are split, an AI large model is utilized to integrate information, test design analysis is carried out, classification and redundant content cutting are carried out, self-check evaluation is completed, a formatted Markdown test design file is generated and then converted into a mind map, an engineer checks the mind map, manual modification and optimization are carried out according to needs, and the method is simple and convenient. The modified mind map is converted into a Markdown file, a formatted test case file is generated, the difference of the Markdown file before and after modification is compared through an AI large model, a Prompt template is updated, according to the method, the test case can be efficiently generated, manpower dependence is reduced, and therefore the adaptability of the test case is guaranteed.

The invention provides an automobile software development question and answer method and device, a storage medium and equipment, in the method, an automobile software demand document is used as a data basis, question and answer processing is carried out in a mode of combining retrieval enhancement generation and a large language model, and based on an automobile software development problem, the question and answer efficiency is improved. Searching a retrieval result related to the automobile software development problem in the knowledge base by adopting a keyword retrieval method and a vector retrieval method, so as to more comprehensively mine potential related information in the knowledge base; and then, reordering the retrieval results to obtain context information, and inputting the context information and the automobile software development problem into a large language model to generate an automobile software development question and answer result. According to the method, rich and accurate context information is injected into the large language model, so that model response better meets actual requirements, time and energy of a user for manually searching massive documents are saved, difficulty of the user for learning automobile software demand documents is reduced, and knowledge retrieval efficiency is improved.

The invention discloses a service management method, system and device based on an automobile SOA framework and a medium, and the method comprises the steps: reading corresponding service configuration information when a service instance is started, and initiating a service registration request to a service registration center according to the service configuration information; the service configuration information is written into a registry through the service registration center, and the service instance is marked as a healthy state; in response to a service query request of the client, generating an available service list through the service registration center according to the service instances in the healthy state, and returning the available service list to the client; and determining a target service instance according to the service instance list through the client, and initiating service calling to the target service instance. The service reliability and the system stability under the automobile SOA architecture are improved, and the method can be widely applied to the technical field of automobile software design.

The invention discloses an intelligent network connection automobile software offline upgrading method and device based on TPM firmware, and the method comprises the steps: obtaining a target upgrading package through the TPM firmware; the target upgrade package is verified through the TPM firmware, and an upgrade package verification result is obtained; when the upgrade package verification result is successful verification, writing the target upgrade package into a storage device of a vehicle system to obtain target vehicle software; and detecting the target vehicle software to generate a detection result report. The software upgrading integrity and safety can be improved, and the method can be widely applied to the technical field of computers.

The invention discloses a method and a device for testing an automobile software unit by a tree structure, and relates to the technical field of automobile software unit testing, the method for testing the automobile software unit by the tree structure comprises the following steps: step 1, modeling by a logic tree Stateflow; step 2, carrying out an overall logic process of modeling from a logic tree Stateflow; step 3, generating a logic flow of the analysis logic tree of Stateflow from the logic tree; step 4, generating a method for calibrating the position of each node of Stateflow from the logic tree; in the first step, the positions where all juctions of the Stateflow are created are standardized through a method of calculating child nodes and characters. According to the method for realizing Stateflow modeling through the logic tree, the logic tree can be firstly combed, and then the Stateflow model is generated from the logic tree, so that logic errors can be avoided, the logic check time is saved, logic and writing specific execution are distinguished, the maintainability of the model can be ensured, and new members do not need very mature writing ability.

The invention discloses a time sequence verification method and device for an automobile software test log. The method comprises the steps that an expected log file and an actual log file are obtained, the expected log file comprises a plurality of expected log entries arranged in sequence, each entry has a plurality of structured fields, the actual log file comprises a plurality of actual log entries recorded in sequence, and each entry has structured fields corresponding to the expected log entries one to one; sequentially aiming at each expected log entry, starting from the current to-be-matched position of the actual log file, searching an actual log entry meeting a preset matching rule; if the search is successful, updating the to-be-matched position of the actual log file to the next position and continuing to match the next expected log entry, and if the search is failed, continuing to search in the subsequent entries of the actual log file until the traversal of the actual log file is completed; and finally, judging whether the actual log file passes verification or fails verification according to whether all entries of the expected log file are matched according to a preset time sequence or not.

The invention discloses a real-time task scheduling method, electronic equipment and a storage medium, and relates to the technical field of automobile software, the real-time task scheduling method comprises the following steps: generating a task scheduling table based on a pre-configured original scheduling table, and establishing a binding relationship between the task scheduling table and a task thread; wherein the number of the task threads is correspondingly consistent with the number of the task priorities configured in the original scheduling table, and each task scheduling table is bound to the task thread with the same task priority as the task scheduling table; when the system is started, task threads are created according to the binding relation, a ready task scheduling table bound with the task threads is determined, and when any task thread is triggered to be executed, tasks to be scheduled are determined based on configuration items of the ready task scheduling table, and scheduling is executed. According to the scheme, the real-time performance of periodic task scheduling is met, and the predictability of task scheduling is improved.

The invention discloses an automobile instrument software design evaluation policy information extraction method and system, a medium and equipment. The method comprises the following steps: constructing design evaluation policy annotation data containing noise; screening a clean set and a noise set from the design evaluation policy annotation data based on a k-fold cross validation method; combining the clean set and the noise set based on a weighted weak supervision loss function to perform weighted training on an information extraction model to obtain a trained information extraction model; and performing information extraction on the to-be-identified automobile instrument software design evaluation policy document by utilizing the trained information extraction model. According to the method, through a two-stage adaptive noise processing framework, high-confidence-coefficient cleaning samples are screened based on loss values, and then noise sample training is fused through a weighted weak supervision loss function. According to the method, the extraction precision in a noise environment is remarkably improved, the dependence on expert labeling is reduced, and efficient compliance development of automobile software is facilitated.

The invention provides an automobile software process auditing method and system. Relates to the technical field of vehicles, and the method comprises the steps: retrieving first multi-source data generated in each practice in a target process through a first large language model, analyzing a first evidence obtained through retrieval, and determining an achievement condition of an evaluation requirement corresponding to the practice reached by the first evidence; the target process is one of auditing standard setting processes; performing semantic association analysis on second multi-source data of the target process and the association process through a second large language model to generate association data between the two processes; the association process is a process associated with the target process indicated by the auditing standard; and generating an evaluation report of the target process based on the achievement condition of each practice included in the target process and the associated data of the target process and the associated process. Thus, through the two language models, deep semantic understanding and correlation analysis of automobile software process related data are achieved, and limitation of personal errors and configuration rules is effectively reduced.

The invention discloses a new energy automobile software efficient development method, which comprises the following steps that S1, cross-platform automobile type difference identification is carried out, the difference between at least two cross-platform extended-range automobile types is analyzed, and the difference comprises an IO control difference, a diagnosis control difference, a function control strategy difference and a message interaction difference; and S2, one-key switching calibration quantity design is carried out, a calibration quantity VCUswREVW2DiitoCal is created, the calibration quantity corresponds to different platform vehicle types through different calibration values, when the calibration value is 0, the calibration quantity is matched with the first extended range vehicle type, and when the calibration value is 1, the calibration quantity is matched with the second extended range vehicle type. According to the method, one set of software is universal for multiple vehicles, repeated software development, test and verification work for different vehicle types is avoided, and the development period is greatly shortened; due to the fact that the software versions are unified, only one time of function optimization and defect repair is needed, iteration of the software versions and accumulation of maturity are facilitated, and the reliability and robustness of the software are remarkably improved.

According to the configuration method and device based on the automobile software architecture, the computer equipment and the storage medium, the mapping object corresponding to each to-be-mapped element is determined by analyzing the connection relation between the configuration elements, and the execution sequence of the mapping operation is determined through the input and output dependency rule between the mapping objects; according to the method, the mapping operation without the dependency relationship is started and executed in parallel, and compared with full serial mapping, the time loss caused by waiting for completion of a single mapping operation is reduced, and the conversion efficiency of the configuration description file to the automobile software architecture is remarkably improved.

The invention discloses an automobile software remote upgrading method and system based on network security protection, and relates to the technical field of automobile electronic systems.The method comprises the steps that a public key in a digital certificate of an automobile and an SM4 symmetric algorithm are adopted to encrypt a signed upgrading package, and an encrypted upgrading package is obtained; verifying based on the digital certificate and the digital certificate chain, and after the verification is passed, establishing a communication channel between the automobile and the upgrade server based on a TLS communication protocol; carrying out decryption and abstract calculation on the encrypted upgrade package by adopting a private key in the digital certificate of the automobile, a public key in the digital certificate of the upgrade server and an SM3 hash algorithm to obtain a first abstract value, a second abstract value and a decrypted upgrade package; and when the first digest value is consistent with the second digest value, remotely upgrading the automobile software by adopting the decrypted upgrade package. According to the invention, the security of remote upgrading of the automobile software can be improved.

The present invention belongs to the field of automotive software technology and specifically discloses a method and device for dynamically combining and transmitting multi-core data in a multi-core chip. The method comprises the following steps: receiving data from at least one process within a counting period and accumulating the number of received data groups; comparing the number of groups with a predefined first threshold; if the number of groups is greater than the first threshold, combining the multiple received data groups into an IPCF data sequence; and issuing an interrupt request to the multi-core chip to transmit the IPCF data sequence. The present invention has the advantage of improving CPU operating efficiency and the efficiency of cross-core data transmission.

In an aspect, systems and methods of connected nodes, including electronic control units (ECUs) in a vehicle, integrate remote direct memory access (RDMA) capabilities with time-sensitive networking (TSN) traffic shaper configurations in a manner that guarantees lossless, bounded-latency critical traffic (CT) streams, while also allowing for different classes of traffic to flow through the connected nodes. In another aspect, mechanisms are introduced to enable an automotive software framework (e.g., classic AUTOSAR) to support RDMA communications.

The invention discloses an automobile software test method, device and system, a medium and equipment, and the method comprises the steps: obtaining a test task of to-be-tested automobile software, obtaining a plurality of target test cases corresponding to the test task from a test case library, and storing the test cases corresponding to a plurality of automobile software in the test case library; target test racks are matched for target test cases from test racks to be selected in a rack resource library, rack resource information of multiple test racks is stored in the rack resource library, and the target test racks matched with at least two target test cases are different; the target test case is executed, so that in the execution process of the target test case, a target interface matched with the target test case is called from the interface database, and interaction with a corresponding target test rack is carried out through the target interface; and obtaining a target test result corresponding to each target test case. The feasibility of the automobile software can be verified in a real automobile environment, so that the applicability of a test result is improved.

The application discloses a kind of remote automobile software calibration systems based on wireless terminal, belong to vehicle engineering technical field, the system includes: vehicle remote calibration terminal, transfer medium and host computer;Wherein, the vehicle remote calibration terminal includes physical interface, CAN module, processor, memory and network module, for the collection and processing of vehicle data;The vehicle remote calibration terminal is also used to send the vehicle data after processing to the host computer and receive the calibration parameter data of the host computer, and the calibration parameter data of the host computer is input vehicle calibration controller;The transfer medium includes base station and server, to transmit the vehicle data after processing of the vehicle remote calibration terminal and transmit the calibration parameter data of the host computer;The host computer is used to receive the vehicle data after processing of the vehicle remote calibration terminal and send calibration parameter data to the vehicle remote calibration terminal.The application has the effect of improving vehicle calibration efficiency.

The application discloses a kind of based on SBOM's automobile software supply chain security and open source governance system and method, by identifying the bill of materials SBOM of automobile software provided by supplier, obtain the basic information of software containing multiple components, software extension information;Software basic information in SBOM is matched with trusted vulnerability library, obtain all known vulnerabilities of SBOM;According to the dependency in SBOM, the influence range of each vulnerability is analyzed, and the affected software product and vehicle model are determined;According to the software product, vehicle model, vulnerability hazard affected, determine vulnerability level;Known vulnerabilities of component and vulnerability level are bound with component in SBOM, form SBOM risk view, determine repair scheme based on risk view;From SBOM identification, vulnerability matching, risk assessment, repair scheme determination to SBOM update, cover the whole process of supply chain security management, form the closed-loop management from vulnerability discovery to repair, ensure that the problem is solved.

The invention discloses an information security processing method and device for automobile software and electronic equipment, and the method comprises the steps: responding to the received target demand information, and determining a target file package corresponding to the target demand information; the target demand information comprises an upgrading software package and a corresponding upgrading execution script; performing first encryption processing and second encryption processing on the target file package to obtain a target encrypted package; the target encrypted packet comprises a storage record table, a software encrypted packet obtained by the first encryption and a digital signature obtained by the second encryption; combining the obtained unpacked file of the vehicle end with the target encrypted packet to obtain a packed file packet; and sending the packed file package to the vehicle end, so that the vehicle end performs software installation based on a target file package obtained by decryption of the packed file package. According to the method, the decompilation condition in the vehicle software upgrading process is reduced in combination with an encryption algorithm and shell adding and unpacking, and the information security of the vehicle end application software application package is guaranteed.

The embodiment of the invention provides a test method and device of an automobile software upgrade package, electronic equipment and a computer readable storage medium, and relates to the technical field of software. The method comprises the following steps: displaying a test interface; in response to an input operation for the tampering position input box, displaying a corresponding tampering position; in response to a trigger operation for the upgrade package uploading control, obtaining a to-be-tested original upgrade package from the first storage path, and displaying upload success prompt information; and in response to a trigger operation for the generation control, tampering the original upgrade package based on the tampering position, displaying tampering data, and displaying a second storage path corresponding to the generated tampering upgrade package, so as to perform software testing based on the tampering upgrade package. According to the embodiment of the invention, automatic tampering of the original upgrade package is realized, and the test efficiency can be effectively improved.

This invention discloses a method and system for making OTA (Over-The-Air) upgrade strategy decisions for vehicles, relating to the field of automotive software upgrade technology. The method includes: acquiring a historical upgrade record set of the target vehicle; acquiring an upgrade task and identifying the upgrade target; based on the upgrade target, determining multiple evaluation dimensions for assessing the upgrade strategy, and configuring weight coefficients for each evaluation dimension to form a multi-dimensional evaluation model; analyzing the historical upgrade record set using the multi-dimensional evaluation model to calculate a comprehensive evaluation score; and selecting a recommended upgrade strategy for the current upgrade task of the target vehicle based on the comprehensive evaluation score. This invention overcomes the shortcomings of existing technologies with their single strategy by introducing upgrade target identification and performing multi-dimensional evaluation based on target and vehicle historical data. It can generate personalized optimal strategies for each upgrade task, effectively improving the upgrade success rate and efficiency while reducing resource consumption.

The application discloses a kind of structured knowledge extraction method, system, equipment and storage medium of automobile software design document, the method includes: to automobile software design document is carried out format conversion and area division, obtains structured data block set;Through sequence mark model, named entity recognition and type mark are carried out to text type data block, and obtain entity type label list;According to preset automobile software relationship rule, generate multiple groups of entity candidate relationship pairs according to entity type label list;According to text type data block, relationship extraction is carried out to each group of entity candidate relationship pairs by graph neural network, to generate relationship triple set;Entity type label list, relationship triple set, the structured information in text type data block is stored.The present application is sequentially linked by the steps of file analysis, entity recognition, relationship extraction and data storage, effectively solves the problem of intelligent extraction structured knowledge from automobile software multi-modal design document.

This application relates to the field of software development technology, specifically to a method, apparatus, device, and medium for generating an automotive service-oriented model framework. The method includes: acquiring automotive domain controller configuration information and automotive software system functional scenario requirements information; dividing automotive functions into multiple services based on the automotive domain controller configuration information and automotive software system functional scenario requirements information, and calling the service interface configuration information corresponding to multiple services; constructing multiple initial model frameworks corresponding to the multiple services based on the service interface configuration information and pre-configured scripts, and adding initialization modules, main function modules, service call interfaces, and notification interfaces to the multiple initial model frameworks to generate multiple complete automotive service-oriented model frameworks. In this invention, repetitive and routine tasks in the service-oriented model framework development process can be automatically completed in the model building environment through pre-configured scripts, improving the development efficiency of service-oriented models and reducing low-level software defects.

The invention relates to the technical field of information, in particular to a software project configuration method and device, a server and a storage medium, and the method comprises the steps: obtaining work items of each stage of a software project; creating a set corresponding to the work items of each stage, configuring the work items, and establishing a traceability relationship and a hierarchical relationship between the work items according to the configured work items; and according to the set corresponding to the work items of each stage and the traceability relationship and hierarchical relationship between the work items, constraining the software project, so that the software project conforms to a standardized management specification. Therefore, the problems of how to optimize and standardize the research and development process of the automobile software and how to ensure the efficient delivery of the software project are solved.

The invention discloses an automobile software test case generation method and system based on dynamic semantic desensitization, and the method comprises the steps: S1, constructing a sensitive entity type library, and defining a unified safety symbol generation rule for each type; s2, acquiring an original test text, identifying all sensitive entities belonging to the sensitive entity type library in the text, performing replacement according to a security symbol generation rule, generating a mapping query table, and constructing a semantic context graph; s3, generating a test code containing the security symbol according to the desensitized text replaced with the security symbol and the semantic context graph; and S4, replacing the security symbol of the test code according to the mapping query table, and restoring the test code into an executable test text. According to the invention, the test code is not exposed to the AI model in an original form, so that data leakage is fundamentally avoided.

An automated testing method for software of an intelligent networked vehicle. First, by means of local area network communication and Internet communication, the configuration of a basic communication structure based on an Internet-of-Vehicles cloud platform, a test server and test bench units is completed; then, the test server initializes task allocation on the basis of historical data and a set static optimization algorithm; and finally, each test bench unit runs a test operation according to the initialized task allocation until all tests are completed, and if a test running abnormality occurs, test tasks of the test bench units are interrupted by taking a fault occurrence moment as an interruption point, a set dynamic optimization algorithm is triggered at the moment when the test running abnormality occurs, so as to perform an operation, re-allocation based on the dynamic optimization algorithm is established for the remaining test tasks on the basis of an operation result, each test bench unit runs the test operation according to a re-allocation scheme until all the tests are completed, and then test results are summarized for the test server.

Disclosed in the present invention is an online method for resetting vehicle OTA software, the method involving an OTA management platform, a TSP platform, a TSP client, an OTA master, an OTA sub master, and an HMI. The OTA management platform interacts with the TSP platform by means of an API, so as to actively send an instruction from a cloud side to a vehicle side; in an OTA scenario, the TSP platform is mainly used for pushing information from the cloud side to a designated vehicle; the TSP client is a TSP component in a vehicle and is used for receiving a push instruction of the TSP platform; the OTA master interacts with an HMI module, so as to interact with a vehicle owner; and the OTA sub master is used for receiving scheduling of the OTA master and is responsible for executing a specific function, for example, flashing a certain part. The present invention solves the problem of when problems, especially the problems of falling into a dead loop and infinite reboot of software, occur in a vehicle-side OTA component, the impact being caused thereby may be catastrophic, and the problems can only be solved by means of offline recalls, which increases costs and reduces the trust of consumers in terms of brands.

The invention relates to the technical field of automobile control, and particularly discloses an automobile software upgrading system which comprises an upper computer, a CAN adapter, a lower computer and control software, the control software comprises an MFC interface software control module, a CAN communication software control module and a UDS flashing software control module, the upper computer is connected with the adapter through a USB line, and the lower computer is connected with the CAN adapter through a USB line. The CAN adapter is connected with the lower computer through the OBD wire harness, and the MFC interface software control module is used for developing a software interface. According to the automobile software upgrading system, the user experience can be improved, and the automobile software can be quickly and stably upgraded.

The present application belongs to the field of automotive electronic technology, and discloses a calibration method, system and computer equipment for automotive ECU data. A first burn file of calibration data is generated by a compiler and sent to a host computer; the host computer adds two different check codes in the check segment area reserved in the first burn file, and backs up the calibration data and the check code to generate a second burn file; the second burn file is sent to an electronic control unit, and the electronic control unit verifies the calibration data in the second burn file and stores the verification result in a data control description module; when a calibration request from an application is received, the data control description module retrieves the calibration data based on the verification result and sends the calibration data to the application; the calibration data is modified according to the operation of the application. The present application method improves the storage security of the calibration data, enables the automotive software system to operate more stably and reliably, and ensures the driving safety of the vehicle.

This application relates to a containerized microservice software architecture, implementation method, electronic device, and storage medium. The containerized microservice software architecture includes: a vehicle-side lightweight container engine, implemented based on a trimmed low-level container runtime, stripped of the image management functions of the high-level container runtime; a container management module, whose lifecycle is managed by an automotive open system architecture adaptive platform; at least one microservice container running in the runtime environment provided by the vehicle-side lightweight container engine, with each microservice container corresponding to at least one in-vehicle function service; and an automotive-grade control and scheduling layer configured to perform resource scheduling and fault management on the at least one microservice container based on the functional safety level in road vehicle functional safety standards. This application achieves a comprehensive technical effect of high real-time performance, high security, low resource overhead, and deep compliance with automotive software standards.