70 results about "AUTOSAR" patented technology

The invention relates to a priority dynamic scheduling and load self-adaption method for an unmanned aerial vehicle in a complex task scene based on an AUTOSAR real-time operating system. According to the method, the task priority is dynamically adjusted through a multi-dimensional dynamic priority scheduling algorithm, multi-core load balancing is achieved in combination with a prediction-based task migration strategy and a hybrid load balancing algorithm, resource allocation is optimized by adopting resource pooling dynamic allocation and PID feedback control, and the problem that when the AUTOSAR is applied to flight control of the unmanned aerial vehicle, the load balancing efficiency is high is solved. The problems that a static priority mechanism cannot respond to an emergency scene, the task load balancing control capability is lacked, task execution is easy to interfere and resource allocation is low in efficiency are solved, the real-time responsiveness, the task completion rate and the resource utilization rate of an unmanned aerial vehicle flight control system are effectively improved, and the flight safety and the operation reliability of the unmanned aerial vehicle in a complex scene are guaranteed.

The invention relates to an LBMS underlying software architecture based on AUTOSAR, and belongs to the technical field of automobile controllers, and the software architecture comprises a management module which comprises a target Os, a target EcuM, a target CanTp, a target Com, a target CanNm, a target NvM, a target WdgM and a target E2e which are redesigned based on LBMS requirements; the target E2e is also used for realizing the verification function of the Crc. According to the software architecture provided by the invention, the standard AUTOSAR underlying software architecture is simplified, nine MCAL modules and three complex driving modules are inherited, Dcm and Dem are statically reserved and dynamically optimized, eight management modules are redesigned according to LBSM requirements, seven non-essential modules are directly deleted, and the modules are further subjected to function integration, so that the number of the modules is reduced; therefore, the FLASH memory occupation of the MCU is obviously reduced, and the system performance is optimized.

The invention belongs to the technical field of automotive electronics AUTOSAR, and discloses an AUTOSAR multi-task-oriented nested lock management and real-time priority scheduling control system, a detection and prevention module establishes a dynamic resource allocation diagram by taking tasks and locks as nodes, real-time traversal is performed in combination with a depth-first search algorithm, and a task-lock-task circulation path is accurately identified; when a potential deadlock is detected, preferentially releasing a low optimal lock occupied by a low-priority task through priority arbitration, and triggering an overtime release mechanism when the priorities are the same; a scene of accessing multiple layers of shared resources by multi-task nesting under an AutoSar framework is adapted, so that the system is ensured to stably run in a complex concurrent scene, and function failure caused by deadlock is avoided; the priority scheduling module establishes a scheduling rule in combination with dual priorities of tasks and locks, optimizes a nested priority inheritance mechanism, temporarily improves the priority when a low-optimal task occupies a lock required by a high-optimal task, and configures a preemption right for the high-optimal lock.

The invention discloses a vehicle-mounted intelligent cabin log system and a vehicle-mounted intelligent cabin log management method, and relates to the field of vehicle machine logs, and the vehicle-mounted cabin system comprises an MCU and an SOC; the MCU runs an AutoSAR real-time operating system and is responsible for CAN signal receiving and transmitting, communication diagnosis, sleep awakening and power management of the whole vehicle; the SOC runs dual systems through a Hypervisor virtual machine monitoring program, and the dual systems comprise an instrument system and a central control system; wherein the instrument system end runs a QNX / Linux system to realize quick response, and the central control system end runs an Android system to process intelligent interaction and cockpit entertainment functions; wherein the cabin log system is established based on the vehicle-mounted cabin system of the vehicle infotainment device 1 and the vehicle-mounted cabin system of the vehicle infotainment device 2; the cabin log system is used for log generation and storage of the vehicle-mounted cabin system of the vehicle infotainment device 1 and the vehicle-mounted cabin system of the vehicle infotainment device 2.

The invention discloses a Tp information forwarding processing method based on AutoSAR architecture design, the method is realized by a PFR module deployed in a basic software layer, the PFR module is pre-configured with a static task pool, a routing information table and a service protocol parameter information table, and the method comprises the following steps: receiving Tp information, associating the Tp information with a corresponding routing information group in a routing information table and a service protocol parameter information group in a service protocol parameter information table; obtaining task attributes based on the service protocol parameter information group associated with the Tp information, and locating idle task nodes through bitmap query in a static task pool based on the task attributes to create an associated new task; and tracking the execution condition of the task associated with the Tp information, and executing the operation defined by the state according to the state defined by the task state machine corresponding to the task attribute. The method has the beneficial effects of efficient task management, flexible configuration, complete task planning and the like.

The invention relates to a method for preventing CAN (controller area network) wake-up false identification after vehicle repair and part replacement of a vehicle-mounted controller, the vehicle-mounted controller uses a TJA1043 chip and is connected to a CAN bus, and the method comprises the following steps: after the vehicle-mounted controller is powered on and started, false triggering wake-up judgment is executed; if the judgment result is effective awakening, controlling the vehicle-mounted controller to enter a normal working mode; and if the judgment result is false triggering awakening, the vehicle-mounted controller enters the dormancy or shutdown state again. By adopting the method, the system, the device, the processor and the storage medium for preventing CAN wake-up error identification after vehicle repair and part replacement of the vehicle-mounted controller, under the condition that a TJA103 chip is not changed, the CAN wake-up error identification can be prevented for all controllers managed by an Autosar network and an instrument controller which is defined as OSEC network management and is provided with a perpetual calendar; a scheme for solving INH output false triggering of a cold start TJA1043 chip is provided, contradictions caused by cost are solved, and software misjudgment when a storage battery on a controller is normally powered is solved by using a system method.

The application relates to the technical field of state machine fault detection, and discloses a state machine fault detection method based on an AUTOSAR architecture, which utilizes an NvM module of a basic software layer of the AUTOSAR architecture to write network management messages of a state machine, and is used for identifying faults of the state machine in the basic software layer; a state machine fault code is established in a DTC, the state machine fault code comprises a plurality of fault bits and a plurality of fault flags corresponding to the plurality of fault bits one by one; a state machine ID is established in a communication matrix DBC, the state machine ID comprises a plurality of states corresponding to the state machine and the plurality of fault bits one by one; and a state machine fault detection result is obtained according to the corresponding fault bits of the state machine in different states. Through separate management of application layer and basic software layer instructions associated with the state machine, when a fault occurs in a controller, the fault of the state machine can be quickly and accurately known, fault positioning can be quickly and accurately performed, and the fault diagnosis efficiency is improved.

The invention discloses an atomization interface design method of a vehicle adaptation layer, electronic equipment and a storage medium, and relates to the field of cabin development. The atomization interface design method comprises the steps that a one-to-one mapping relation between a globally unique service mark Key corresponding to a vehicle function attribute ID and a vehicle SOA signal or a CAN signal is established, and a HashMap global mapping table based on Key-Value key value pairs is formed; wherein the service mark Key corresponds to a unique atomization function unit and is used for representing a basic capability unit of the in-vehicle entertainment product; the HashMap global mapping table is maintained through a vehicle machine attribute ID manager CarPropertyIDManager, and the HashMap global mapping table is used for replacing a service module unit manager Manager and is used for unified management of atomization interfaces; the application layer directly indexes the service mark Key and the corresponding Value data parameters to a target atomization interface in a HashMap global mapping table by transmitting the service mark Key and the corresponding Value data parameters, and interface calling is completed; wherein the data conversion process is executed in the calling process, and the data conversion process comprises the following steps: converting standard protocol data transmitted by the APP into SOA or CAN signal data during downlink, and transmitting the SOA or CAN signal data into AutoSAR vehicle machine service.

The invention provides an FOTA implementation method and system based on an AUTOSAR architecture, equipment and a medium, and belongs to the technical field of automobile software remote updating. And when the diagnosis frame adopts a predefined extended frame format, performing diagnosis frame transmission of FOTA operation according to the predefined extended frame format. According to the method, the FOTA operation and the normal diagnosis operation are distinguished through the extension frame, the conflict between the FOTA operation and the normal diagnosis operation is avoided, and the stability of the FOTA process is ensured; through exclusive configuration of FOTA-related services and transmission parameters, the requirements of different platforms are met, and the expandability of the scheme is improved; through the adaptive configuration of the transmission parameters, the transmission efficiency of the FOTA data is optimized, and the occupation of system resources is reduced; through exclusive diagnosis session switching and arbitration logic, interference of normal diagnosis operation on FOTA operation is avoided, and the overall safety of the system is improved.

The present application relates to the field of vehicles. Provided are a development method and apparatus based on an AUTOSAR, and a storage medium. The method comprises: in response to a first operation, obtaining a secondary baseline configuration, wherein the first operation is used for importing a primary baseline configuration into a user configuration project, the primary baseline configuration comprises a primary Bsw configuration and a primary AppL configuration, and the secondary baseline configuration comprises a secondary Bsw configuration and a secondary AppL configuration; and in response to a second operation, obtaining a secondary customized configuration, wherein the second operation is used for newly adding a Bsw configuration and / or an AppL configuration on the basis of the secondary baseline configuration, the secondary customized configuration comprises a secondary Bsw customized configuration and / or a secondary AppL customized configuration, the primary baseline configuration and the secondary baseline configuration are public configurations, and the secondary customized configuration is a user configuration. By means of hierarchical development, the workload of iterative development can be reduced, thereby improving the development efficiency.

This invention relates to the field of vehicle communication technology, providing a method and system for converting Excel to ARXML format. The method pre-defines an Excel conversion template, specifying that different worksheets correspond to different top-level containers in the ARXML document, and pre-defined mapping rules between Excel column names and ARXML element attributes or child nodes. Based on these mapping rules, the method automatically converts data rows in the Excel worksheet into corresponding ARXML element nodes, and performs reference relationship parsing on the generated nodes, replacing reference path placeholders with reference nodes conforming to the AUTOSAR standard. Finally, it integrates all ARXML element nodes that have undergone reference parsing and updates, generating a compliant ARXML file that can be directly used in the AUTOSAR toolchain. This invention transforms complex manual coding into parameterized table configuration, effectively improving the efficiency, consistency, and compliance of vehicle communication configuration file creation through end-to-end rule mapping and automated processing.

The invention relates to a communication stack for energy storage communication and a data communication method of an energy storage system, and a layered software architecture comprises a plurality of function levels divided based on a microcontroller abstraction layer, an electronic control unit abstraction layer and a service layer in Autosar. The data communication module is used for adapting to the data communication requirement of an energy storage battery management system and opposite-end equipment for performing a target interconnection communication protocol; the standardized interface module is provided with a standardized interface framework for interaction among functional levels in the layered software architecture and interaction between the energy storage battery management system and opposite-end equipment, and supports setting of interface parameters based on data communication requirements so as to realize data interaction among the functional levels through the standardized interface framework and the set interface parameters. According to the embodiment of the invention, the design target of each function level is consistent with the positioning of the corresponding level of Autosar, so that the architecture logic of the communication stack is uniformly constrained, the software reuse rate and maintenance efficiency are improved, and the coupling degree of a bottom software module is reduced.

The invention discloses a diesel engine fault code filtering and storing method based on an AUTOSAR architecture, relates to the technical field of automobile electronic control, and solves the technical problem that a mechanism for effectively screening and filtering fault codes according to the internal severity levels of the fault codes before the fault codes are stored and reported does not exist in the prior art. The method comprises the following steps: in an AUTOSAR project configuration stage, allocating a severity level priority value for each diagnosis fault code in an AUTOSAR project; after the ECU is powered on, hardware, basic software and an application layer are initialized; all the diagnosis fault codes are filtered according to the severity level priority values, and target diagnosis fault codes are obtained; screening state information corresponding to the target diagnosis fault code and obtaining target state information; and reading the stored target state information and reporting the information to a diagnostic apparatus. The invention further discloses a diesel engine fault code filtering and storing system based on the AUTOSAR architecture. The diagnosis efficiency and the response efficiency are improved, and the storage space is saved.

The invention discloses an integrated fault injection automatic configuration system and method for automatic driving, and belongs to the technical field of automatic driving function safety testing. The system comprises a graphical user interface module for receiving multi-dimensional fault parameters and supporting AUTOSAR signal tree navigation; the template generation module is used for generating a structured template file embedded with safe upper and lower text fields according to the fault parameters; the XML analysis module is used for performing grammar and semantic double-layer analysis, calling a whole vehicle communication matrix to identify a signal dependency relationship, and generating a fault propagation path diagram and an injection matrix data structure; the multi-platform adaptation engine module is used for automatically outputting scripts of platforms such as ETAS INCA, dSPACE Control Desk, Vector CANoe, NI VeriStand and the like; and the script previewing and debugging module renders and executes grammar check in real time, and dynamically adjusts the fault weight and the sorting priority through online learning. According to the system, automatic configuration and multi-platform adaptation of the fault injection test are realized, and the efficiency and accuracy of the safety test of the automatic driving function are remarkably improved.

This invention relates to the field of automotive communication technology, providing a method and system for converting and managing automotive communication database formats. It aims to solve the problems of low efficiency, error-proneness, and difficulty in collaboration associated with traditional manual processing of multi-source heterogeneous communication data. This method automatically parses source data in multiple formats such as DBC and Excel, converting them into a pre-defined intermediate data model. It then automatically generates ARXML files conforming to the AUTOSAR standard and finally uploads the files to a cloud database, associating them with project information to achieve centralized storage, version management, and collaborative work. Through collaboration between local and cloud platforms, multiple verifications and version management can also be achieved. This invention efficiently and accurately converts scattered and heterogeneous communication data into industry-standard files through an automated process, and leverages the cloud to achieve centralized file management and project-based collaboration, effectively improving the efficiency, consistency, and traceability of in-vehicle communication data processing.

This invention relates to the field of software operation forensics and fault diagnosis technology, specifically to a method for recording a minimum sufficient evidence package for an airbag control unit and an automotive airbag control unit. The method is executed in a Classic AUTOSAR environment and includes: determining whether both anomaly symptom conditions and operational state time gating conditions are simultaneously met; if so, determining that the trigger condition is established; recording the trigger time; and freezing event information, path signatures, and key variable snapshots at the end of a predetermined window after triggering. Combined with the invariant assertion bitmap at the time of triggering, a minimum sufficient evidence package is generated. Compared with existing technologies, this invention can record a minimum sufficient evidence package with predictable and extremely low operational overhead, and has advantages such as not changing the airbag control logic path, not entering the ignition ISR critical segment, and retaining evidence even in power-down scenarios.

The invention discloses a DoIP gateway architecture under an AUTOSAR CP architecture, a communication method of the DoIP gateway architecture and a vehicle. The DoIP gateway is connected between the Tester end and the DoIP node, the DoIP gateway comprises an Ethernet protocol stack, a DoIP-Server module, a DoIP-Client module and a PDuR module, the Tester end is connected to the DoIP-Server module through the Ethernet protocol stack, the DoIP-Server module is connected to the DoIP-Client module through the PDuR module, and the DoIP-Client module is connected to the DoIP node through the Ethernet protocol stack. According to the invention, under the architecture of the AUTOSAR CP, the function of converting the UDSonDoIP into the UDSonDoIP and the function of converting the UDSonDoIP into the UDSonDoIP from the UDSonDoCAN are realized.

The embodiment of the present disclosure relates to the field of automobile electronic architecture, and discloses a test method, system and device based on AUTOSAR network management and a storage medium, the method comprises the following steps: when each ECU is in a wake-up state and is not in a bus sleep mode, monitoring the network through a network management coordinator; when there is a bus in an active state in the network, controlling the network management coordinator to keep the network active, and starting a coordination algorithm; when the coordination algorithm is started, starting a closing delay timer for the bus in the active state; when the closing delay timer times out, releasing the bus in the active state until all networks are in the bus sleep mode. In the example embodiment of the present disclosure, the communication test of the network management state machine related parameters of the vehicle level and component level CAN controller is carried out based on the AUTOSAR network management specification through the CANOE of the VECTOR company.

The invention provides a multi-domain time synchronization system based on AUTOSAR AP, a medium and a vehicle, and relates to the technical field of automotive electronic and electrical architectures, the system realizes remote dynamic configuration and real-time issuing of time service topology through an integrated cloud configuration module; the central computing unit fuses AUTOSAR AP and CP platforms, dynamically constructs a time service tree by using a time service management module, distributes high-precision synchronization signals to different domain controllers as a main clock node, and realizes low-delay and high-consistency global time transfer between the AP and the CP by means of a shared memory region with a fixed physical address and an inter-core interruption mechanism; meanwhile, through a three-level safety monitoring module covering a hardware layer, a protocol layer and an application layer, full-link state monitoring and feedback are carried out on the synchronization process, and a vehicle function safety mechanism is effectively supported; the system supports multi-domain cooperation under the heterogeneous vehicle-mounted network, improves the flexibility, precision and reliability of time synchronization, and meets the strict requirement of high-level automatic driving for cross-domain time sequence consistency.

The invention discloses an inter-core communication method and device based on AUTOSAR and a storage medium, and belongs to the technical field of automobile electronic architectures, the method is applied to an IOC mechanism of an OS in the AUTOSAR architecture and responds to data interaction requirements between different cores, and the method comprises the steps that on the data sending core side, global interruption of a data sending core is closed, and an inter-core shared memory is locked; rewriting a shared variable in the shared memory by using the sent data; the shared memory is unlocked, and inter-core interruption is triggered, and the inter-core interruption comprises triggering a pre-created data receiving core to receive a task through a pre-created data receiving core receiving event; starting global interruption of the data sending core; at the data receiving core side, when the inter-core interruption arrives, the global interruption of the data receiving core is closed, and the shared variable is read to serve as received data; and starting global interruption of the data receiving core, so that high decoupling of an inter-core communication program is realized, and meanwhile, the consistency of data when the shared memory is accessed is fully ensured.

According to the AUTOSAR-based unmanned aerial vehicle adaptive anomaly prediction and high-precision multi-task recovery method and system of the invention, a layered adaptive anomaly detection framework and a task importance degree propagation graph are constructed, and dynamic task scheduling, credit driven resource allocation and a task context storage recovery mechanism are combined; the method effectively overcomes the defects of limited anomaly detection capability, multitask resource contention, poor high-load stability, difficult modularization and software and hardware cooperation and the like when a traditional AUTOSAR architecture directly adapts to an unmanned aerial vehicle, and realizes efficient adaptive anomaly detection, high-precision multitask rapid recovery and AUTOSAR deep optimization adaptation in a resource-limited embedded environment. And high stability, high resource utilization rate and cross-platform transportability of the system are further guaranteed.

This invention proposes a method, system, and apparatus for automatically generating RTE code for Autosar CP, belonging to the field of Autosar technology. The method includes: S1: constructing a template file using a logic-free construction approach; S2: parsing an ARXML file and constructing a data structure; S3: constructing a configuration file, including: file naming rules, the names of the required template files, and the names of the data structures; S4: automatically generating RTE code based on the template file, data structure, and configuration file. This invention employs a unified generation paradigm and template mechanism, ensuring code consistency and correctness, and providing high flexibility and scalability to meet the needs of different projects.

A system for verifying a virtual ECU for an automotive embedded system is provided. The system includes a docker management unit configured to perform setting on a plurality of virtual ECUs based on first setting information and to construct a network between the plurality of virtual ECUs based on second setting information and a docker host managed by the docker management unit. The docker host includes a resource management unit including a device driver for each board for generating each virtual ECU and an application builder for building an embedded software-based application according to the AUTOSAR standard to be mounted on the virtual ECU, the plurality of virtual ECUs each configured to drive the built application, and a network management unit connected to the plurality of virtual ECUs and configured to support network communication between the virtual ECUs.

1. Name of the product in this design: Single-interface communication interface shell. 2. Application of this design: Research and development of vehicle bus (including design, development, testing, diagnosis, etc.), and development and simulation of AUTOSAR system. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The embodiments of the present invention relate to the technical field of communications, and disclose a redundant controller primary-secondary redundant communication system and method. The method comprises: a target arbitration mechanism receiving a private CAN message sent by a target private CAN transceiver, and determining whether the private CAN message has timed out; if the private CAN message has not timed out, the target arbitration mechanism sending to a target Autosar-COM the private CAN message sent by the target private CAN transceiver; if the private CAN message has timed out, the target arbitration mechanism sending to the target Autosar-COM UART data received by a target UART transceiver. According to the embodiments of the present invention, an arbitration mechanism monitors private CAN messages for timeouts, and initiates a UART-data-based simulation of a private CAN message when a private CAN message times out, thereby achieving stable and timely data communication between a primary MCU and a secondary MCU, and improving the safety performance of a vehicle while driving.

The invention discloses a power domain control system of a multi-core controller based on an AutoSar framework, and relates to the technical field of automobile electronic control, the system uses a hardware layer of a software platform to obtain an operation signal of a vehicle, and an interface platform obtains a power domain of the multi-core controller based on a preset first corresponding relation between a core and the operation signal. Transmitting the operation signal to a first target Core corresponding to the operation signal in a software layer of a software platform; and the first target Core generates a control instruction corresponding to the operation signal, and the interface platform sends the control instruction to a target function module corresponding to the first target Core in a hardware layer of the software platform 102 based on a preset second corresponding relationship between the core and the function module, so that the target function module performs vehicle control based on the control instruction. The method and the device are used for solving the problems of low task execution efficiency and poor whole vehicle operation safety of a power domain controller in the prior art due to a dispersed framework of the EMS and the TCU, and the task execution efficiency and the whole vehicle operation safety are improved by integrating the EMS and the TCU.

This application provides a method, apparatus, electronic device, and storage medium for automated code analysis. The method includes: constructing parsing parameters based on the source file root directory, header file search path, and predefined AUTOSAR target macros in response to a parsing parameter construction operation; performing syntactic analysis on the source code based on the parsing parameters using a Clang compiler frontend to generate an abstract syntax tree; recursively traversing the abstract syntax tree to identify function definition nodes to extract function information and to identify function call expression nodes to capture the call relationship between the caller and the callee; and storing the function information and call relationship in a structured format as a function listing file and a call relationship file. This application can improve the efficiency and accuracy of C language code analysis under the AUTOSAR architecture, and realize the structured storage of function information and the visualization of call relationships.

The embodiment of the invention relates to the technical field of Internet, and discloses a spin lock design method and device, electronic equipment and a storage medium. According to the embodiment of the invention, at least the problems that the stability of write operation is poor, a timeout mechanism is not set, too long waiting is possibly caused, and the response speed of the system is influenced in an existing CP AUTOSAR OS system can be relieved; by adding the first preset parameter to check and judge whether the spin lock is configured with a lock method related to interruption or not, check whether lock obtaining is overtime or not, read and judge whether the state variable of the spin lock is an even number or not, and other design logics, the process of obtaining the lock through write operation is optimized, the stability of system write operation is improved, and the system response speed is increased.

This invention relates to the field of automotive electronic control technology, specifically a bootloader sleep control method for an automotive controller. Compared with existing technologies, this invention uses app unavailability as a precondition for bootloader sleep, accurately solving the power management problem in app unavailability scenarios and preventing continuous battery drain. It requires no additional hardware components and can be implemented through software logic upgrades of existing automotive controllers. It is compatible with both AUTOSAR and non-AUTOSAR architectures, adapts to different brands of automotive ECUs, and reduces overall vehicle manufacturing costs. In sleep mode, it retains core wake-up source detection; after the KL15 ignition signal triggers, the bootloader wake-up and system initialization can be completed within 500ms, providing a rapid wake-up response without affecting normal vehicle startup and use.

The invention relates to the technical field of software adaptation, in particular to an AUTOSAR OS unified adaptation method and system for a multi-architecture chip, and the method comprises the steps: building a universal interface corresponding to a hardware platform, and carrying out the modular disassembly to obtain a common adaptation logic and software function module corresponding to kernel information; adding a platform specific code to form an adaptive module; and selecting a corresponding compiler to compile the adaptive module to obtain an adaptive program. In order to solve the problem that in the prior art, an AUTOSAR operating system is low in adaptation efficiency for different types of kernel architectures, common adaptation logic which is still suitable for different kernel architectures in the operating system is obtained by disassembling kernel information, and the system is disassembled to obtain a plurality of software function modules. According to the method, platform specific codes are added to a software function module in combination with a kernel architecture actually needing to be adapted, and a universal interface is adopted for packaging and compiling, so that effective adaptation of a multi-architecture platform is realized, and the adaptation efficiency is improved through adaptation logic reuse.