204 results about "AUTOSAR" patented technology

The invention provides a power domain control software architecture and a controller thereof, the software architecture comprises an application layer developed based on an AUTOSAR standard, a runtime environment and a basic software layer, the application layer comprises a plurality of modularized software components, the software components package service logic functions of the controller to be integrated, the software components are provided with an AUTOSAR-based ARXML file definition interface, and the AUTOSAR-based ARXML file definition interface is used for defining the service logic functions of the controller to be integrated. According to the method, the interface compatibility can be improved, seamless integration of application layers across controllers can be realized, and the development parallelism is enhanced by kernel deployment of independently packaged software components according to the real-time performance of functions. The runtime environment generates an inter-core communication agent code, constructs a virtual bus and routes a service request of an application layer component to the basic software layer, and the basic software layer provides system-level service for the application layer through a virtual bus interface of the runtime environment, so that the application layer does not need to directly operate hardware, software and hardware decoupling is realized, and the service performance of the application layer is improved. And smooth realization of software fusion and integration is promoted.

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 a cross-platform communication protocol stack test system and method based on Autosar. The system comprises a GitLab server, a first source server, a control host, an Autosar CP and a test host AP. The GitLab server generates CP and AP version packages and triggers compiling and testing processes; the first source server remotely controls the embedded software development tool of the control host to complete compiling, and the control host burns a CP compiling product to the Autosar CP by using the embedded software development tool, uploads an AP compiling product to the test host AP, and triggers the Autosar CP and the test host AP to execute a communication protocol stack test service. According to the method, efficient testing of the communication protocol stack between the Autosar CP and the AP platform is achieved through the automatic compiling and testing process, the testing accuracy and universality are effectively improved, and the method is suitable for the testing scene of the automobile cross-platform communication protocol stack.

Provided is a method for verifying an input / output operation of an AUTOSAR platform in a virtual ECU environment. The method includes transmitting an input / output command for a peripheral implemented in a core area of the virtual ECU from an AUTOSAR platform area of the virtual ECU operating in a virtual environment to a memory area through a predetermined emulator; transmitting the input / output command from the memory area to the peripheral; and performing a read or write operation of data on a register of the peripheral by emulating an operation corresponding to the input / output command in the peripheral.

The invention provides a VTCU controller task allocation method and device based on AUTOSAR and electronic equipment, and the method comprises the steps: dividing an application layer into a plurality of software components according to the functional characteristics of the application layer, and generating an application layer code; importing the application layer code into a configuration tool of the runtime environment to configure related modules of the runtime environment, and generating a runtime environment code; according to the functional characteristics of the running entity of each software component, a periodic task and related modules of the periodic task are configured through a configuration tool of a real-time automobile operating system, and a real-time automobile operating system code is generated; integrating an application layer code, a runtime environment code and a real-time automobile operating system code into a Tasking project, and generating an executable file; and downloading the executable file into a whole vehicle and a gearbox controller through the UDE, and running the executable file. According to the scheme, the load rate of the CPU is effectively reduced, and the running efficiency of the VTCU controller software driving program is improved.

The invention discloses a method for realizing DDS multi-core deployment on an AutoSar CP platform, a TCPIP protocol stack is deployed in a first core, and the DDS protocol stack and user interface calling are deployed in a second core; the TCPIP protocol stack on the first core writes the data into an inter-core shared queue through interruption, and notifies the DDS task on the second core through a SetEvent mechanism; after being activated by the event Event, the data are taken from the inter-core shared queue and processed in real time, and a user task calls a ddstag interface to receive the data; and automatically judging whether the current calling core is consistent with the core where the TCPIP is located in the ddswrite interface, if so, directly sending the data, and if not, writing the data into an inter-core shared queue. According to the multi-core deployment, the CPU occupancy rate of the TCPIP core is reduced, and the processing capability of other cores is utilized, so that more services can be supported and deployed, and the flexibility of service deployment and the service bearing capability are greatly improved.

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.

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.

To provide: an intrusion detection system (IDS) that detects intrusion of a controller area network (CAN); and an operating method thereof.SOLUTION: An operating method includes the steps of: receiving, by a CAN packet mirroring system, a CAN message from a CAN driver existing in an AUTomotive Open System ARchitecture (AUTOSAR) protocol data unit (PDU) router (PduR) region of an AUTOSAR layer; storing the received CAN message in a plurality of storage regions of a memory; a reading, by an IDS core, data copied by the CAN packet mirroring system and transmitting the copied data to a detection engine base; and separately managing, by the IDS core of the IDS core layer, a first memory region for storing a policy binary file which is policy rules of the IDS and a second memory region for storing a buffering table for buffering and storing the CAN message.SELECTED DRAWING: Figure 3

The embodiment of the invention relates to the technical field of information, and discloses a network management method and device based on AUTOSAR, a medium and a program product. The method is applied to a sending end, and comprises the following steps: acquiring a key byte sequence; wherein the key byte sequence is deployed in an electronic control unit, and the electronic control unit is used for managing network nodes; the key byte sequence at least comprises a key, an internal filling constant and an external filling constant; determining a first hash value according to the secret key, the internal filling constant and a to-be-sent original message; determining a second hash value according to the secret key, the external filling constant and the first hash value; and determining a target message according to the second hash value. The method and the device are at least used for solving the technical problems that messages based on automobile network management are easily attacked by a network and the security risk is relatively high in related technologies.

The invention provides a domestic chip-oriented lightweight AUTOSAR architecture multi-core optimization method, belongs to the field of automobile electronic software architecture optimization, and is used for solving the problems of low computing power utilization rate, insufficient security isolation and long multi-vehicle-type adaptation period when an AUTOSAR architecture adapts to a domestic multi-core chip in related technologies. According to the method, core resource characteristics of the domestic multi-core chip are quantified, a three-dimensional binding partition deployment system is constructed, functional partitions are split, core resources are bound directionally, OS lightweight, security isolation, dynamic scheduling, self-adaptive learning and pruning feedback are combined, security task physical isolation is achieved, the hardware characteristics of the domestic chip are adapted, the efficiency of the multi-core resources is improved, and the cost is reduced. And the multi-vehicle-type adaptation period is shortened.

The invention discloses an AUTOSAR development configuration system and method based on a Docker container, and the system comprises an interaction layer container which is used for the interaction between the system and a user, and comprises a user interface, an authority management interface, a configuration management interface, a code generation interface and a test interface; the application layer container is used for configuring and testing key functions of the AUTOSAR and comprises an authority management module, a configuration management module, a code generation module and a test module; and the output layer container is used for outputting the code file and the configuration file and comprises a code file output module and a configuration file output module. According to the invention, the problems of strong environmental dependence, high resource occupation, complex version management, low deployment efficiency and the like of the existing AUTOSAR development configuration tool can be improved.

The invention provides a vehicle sleep exception processing method, device and equipment, a medium and a program product, and relates to the technical field of vehicle network management, and the method comprises the steps: determining whether a vehicle is in a sleep exception state or not; if the vehicle is in the dormancy abnormal state, determining a dormancy abnormal controller in the vehicle according to the received target network management message, the vehicle comprising a plurality of controllers for network management based on AUTOSAR; according to an awakening reason message and a non-dormancy reason message sent by the dormancy abnormity controller, obtaining a target awakening reason and a target non-dormancy reason corresponding to the dormancy abnormity controller; according to the target awakening reason and the target non-dormancy reason, determining a power supply control strategy corresponding to the dormancy abnormity controller; and performing dormancy exception processing on the dormancy exception controller according to the power supply control strategy. According to the invention, the problem of vehicle sleep abnormity can be processed more accurately, so that the risk of data loss is greatly reduced, and the risk of vehicle feed is effectively reduced.

The invention provides a rapid prototyping algorithm verification platform and method, and the method comprises the steps: receiving a configuration parameter inputted by a user through a configuration interface, and generating a configuration file based on the configuration parameter and a script written according to an AUTOSAR standard; building an algorithm model based on a function module which is selected by a user and meets the AUTOSAR standard; generating a model code corresponding to the algorithm model; and compiling and linking the configuration file and the model code in the underlying project to obtain a hex file. In the scheme, the configuration file and the model code conforming to the AUTOSAR standard are obtained by using the script written based on the AUTOSAR standard and each functional module obtained by packaging the ECU abstraction layer interface in the AUTOSAR standard, and are automatically integrated to the underlying project for compiling and linking, so that the code reuse rate is improved, the manpower is saved, and the efficiency is improved. And the purpose of shortening algorithm verification time is achieved.

The invention provides a communication middleware construction method and system based on an open architecture. The method comprises the following steps: acquiring an open architecture model required for constructing lightweight communication middleware; modifying a data communication structure of the lightweight communication middleware into a data communication interface based on an open architecture model; according to the method, basic data processing and communication functions of lightweight communication middleware are deployed in an open architecture model, an upper-layer service interface of the lightweight communication middleware in the open architecture model is constructed, and specific calling of software components of the open architecture model is realized by utilizing the upper-layer service interface, the upper-layer service interface comprises an initialization service interface and a data release service interface of the lightweight communication middleware. According to the invention, the lightweight DDS is deployed in the AUTOSAR CP, and compared with the traditional IP-based service-centered communication middleware in the AUTOSAR CP, the DDS middleware enhances the guarantee of service quality.

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 discloses a multi-ECU (electronic control unit) node parallel flashing architecture and an AUTOSAR (advanced open time synthetic aperture radar)-based flashing architecture. The architecture comprises a flashing control module, a diagnosis module and a protocol data unit layer. And the flashing control module dynamically updates the flashing process function of each ECU node according to the polling result of the diagnosis module, generates protocol data in combination with the flashing context function, and sends the protocol data to the diagnosis module. And the diagnosis module encapsulates the protocol data into a plurality of interaction protocol data and sends the interaction protocol data to each ECU node in parallel. The diagnosis module comprises a parallel state machine bound with the ECU node state, a service packaging interface and a node diagnosis configuration list, and supports multi-protocol adaptation and heterogeneous ECU parallel flashing. By implementing the invention, the flashing efficiency and compatibility of the vehicle-mounted system can be improved.

The invention provides a CAN message routing method, system, device and medium based on AutoSar, and belongs to the technical field of vehicle control system communication.The method comprises the following steps that a CAN routing intermediate module is designed, an initial routing table and a user interface are added, the CAN routing intermediate module is added between a CAN interface module and a PDU routing module of an original AutoSar topology, and the CAN interface module and the PDU routing module of the original AutoSar topology are connected through a network; establishing connection between the user interface and the application module; identifying a routing rule adjustment requirement through a user interface, and adjusting a routing table; and the CAN routing intermediate module determines a routing path for the original CAN message according to a routing table, provides a target message to the CAN interface module for forwarding according to the routing path, and transmits the original CAN message to the PDU routing module for transmission. The CAN message configuration under the AutoSar architecture is simplified, the intelligent routing and customization requirements are met, and the method flexibly adapts to network changes.

The present application provides a method and device for automatically generating a controller software routing information configuration file based on the Autosar architecture. By quickly identifying the routing relationships in the CAN matrix, it configures the entire frame routing relationships according to the identified routing relationships, configures the signal routing relationships according to the identified routing relationships, and finally outputs the entire frame routing relationships and signal routing relationships to the arxml file to achieve full-automatic configuration of routing information, improving the time efficiency and configuration quality of AUTOSAR configuration.

The invention discloses a method and equipment for testing an AUTOSAR AP application program. According to the method, a calling instruction containing a module, an interface and a parameter data type is obtained by analyzing an ARXML file, a corresponding function template is matched according to the module and the interface in the instruction, the parameter data type is written into the template to generate adaptive stub functions, and finally unit testing of the application program is completed based on the stub functions. According to the method, automation of stub function generation is achieved, manual writing and adjustment are not needed, and the error rate and workload caused by manual operation are greatly reduced; through accurate matching of the parameter data type and the function template, the consistency of the stub function and the application program interface is ensured, and the accuracy of unit testing is improved; the whole process adapts to the standardization characteristic of the AUTOSAR AP, and the efficiency and reliability of application program unit testing are remarkably improved.

The invention provides a delay method, device and equipment based on an AutoSar operating system, a medium and a vehicle, the AutoSar operating system runs in a micro-control unit, the method comprises the following steps: when a service task of the AutoSar operating system is in a running state, triggering a delay demand according to a preset condition, and setting delay time based on a hardware timer; after the delay time, overtime interruption is generated through a hardware timer, and the service task is converted from the running state to a waiting state; when the AutoSar operating system receives the overtime interrupt, triggering a scheduler to convert the service task from the waiting state to the ready state; by adopting the method, the use time range of the application program can be increased.

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 provides an AUTOSAR architecture diagnosis code generation method and device and a medium, and belongs to the technical field of computers. The method comprises the following steps: acquiring a diagnosis database required for configuring the AUTOSAR diagnosis system, wherein the diagnosis database records a plurality of diagnosis units and a logic relation graph formed by the diagnosis units; generating a plurality of diagnosis registrators corresponding to the plurality of diagnosis units in a Simulink application layer model by adopting a registrator module according to the logic relation graph; performing parameter configuration on the plurality of diagnosis registrators to generate a diagnosis database configuration file; generating a diagnosis global manager in the Simulink application layer model, and then performing parameter configuration to generate a diagnosis global configuration file; and integrating the diagnosis database configuration file and the diagnosis global configuration file to obtain an AUTOSAR architecture diagnosis code file corresponding to the AUTOSAR diagnosis system. According to the invention, the AUTOSAR diagnosis function can be realized in a lightweight manner.

The invention discloses a vehicle body domain controller hardware-in-the-loop simulation method under an AUTOSAR architecture, and the main conception of the method is that based on the standardized interface definition of an AUTOSAR basic software layer, an HIL cabinet hardware channel standardized mapping relation library is established, and thus a hardware corresponding relation configuration file template is constructed; establishing a subsystem simulation model for each functional module and constructing a three-layer decoupling architecture in combination with different functional specifications to realize dynamic binding of test software and a hardware channel; then, based on an actual hardware interface and software function definition, a simulation test bench is built, and verification is completed; and finally, generating an automatic test case based on the function specification, and carrying out the function test of each subsystem of the vehicle body domain controller in the current test environment. According to the invention, the rack development period is obviously shortened, the flexibility and expandability of the test environment are improved, and the full-life-cycle test verification capability optimization is realized.

The invention provides a configuration parameter verification method and device based on AUTOSAR, and relates to the technical field of data verification, and the method comprises the steps: obtaining a to-be-verified configuration parameter in AUTOSAR related parameters, and determining a target function module corresponding to the to-be-verified configuration parameter; a target check code corresponding to a target functional module is determined in a check code set corresponding to each functional module of the AUTOSAR, the target check code comprises names, error levels, check types and sub-check codes of the functional modules, the names of the functional modules are used for indicating the functional modules to which the check code is applicable, and the sub-check codes are used for indicating the functional modules to which the check code is applicable; the error level is used for indicating a danger level of an error when verification fails, and the verification type and the sub-verification code are used for indicating a verification rule; and verifying the to-be-verified configuration parameter based on the verification type in the target verification code and the verification rule indicated by the sub-verification code to obtain a verification result. The method and the device are used for solving the problem that the verification accuracy of configuration parameters in all function modules of the AUTOSAR is low.

A vehicle data communication system (1) comprises: a server-side electronic control unit (6), which functions as a server; and a client-side electronic control unit (7), which functions as a client. The server-side electronic control unit and the client-side electronic control unit are configured to exchange data with each other via a communication path (9) using a service-oriented communication protocol. The server-side electronic control unit includes a server-side communication bandwidth setting unit (6i), which is configured to operate in conjunction with a server-side service discovery (6g) defined in AUTOSAR (AUTomotive Open System ARchitecture).The client-side electronic control unit includes a client-side communication bandwidth setting unit (7i) configured to work in conjunction with a client-side service discovery (7g) defined in AUTOSAR. The server-side communication bandwidth setting unit and the client-side communication bandwidth setting unit are configured to cooperate to dynamically set a predetermined communication bandwidth required for data communication on the communication path.

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.