901 results about "Domain controller" patented technology

The invention discloses an OTA parallel downloading method and system based on a domain controller, and the method comprises the steps: an OTA cloud platform judges whether a vehicle has an upgradable task or not according to the information reported by the vehicle; if the upgradable task exists, the OTA cloud platform feeds back upgrading task information to the OTA upgrading controller; the OTA upgrading controller informs each domain controller of upgrading task information; and after each domain controller obtains the upgrade file downloading link, synchronously downloading the upgrade package file of the lower hanging node corresponding to each domain controller in parallel. According to the OTA parallel downloading method and system based on the domain controller and the domain controller, the upgrade package of the node ECU hung below the domain controller can be directly downloaded from the OTA cloud platform, so that the number of times of transmission of the upgrade package at a vehicle end is reduced, the overall time of downloading and distributing an upgrade package file is shortened, meanwhile, the probability of occurrence of a data transmission problem is reduced, and the reliability of an OTA system is improved.

The invention provides an MCU function security implementation system based on a domain controller, and relates to the technical field of domain controllers, the system realizes dual backup storage and on-site execution of program codes by combining a security MCU without a built-in program memory with at least two redundant plug-in nonvolatile storage units, and the security of the MCU is improved. Consistency verification is carried out on key codes or data in the running process, and system failure caused by single-point storage faults or data tampering is effectively prevented; meanwhile, read-write operation without losing data during power failure is isolated through the independent data storage unit, and resource conflict and interference between program execution and data storage are avoided; the ASIL D-level power management unit supporting two-way fault monitoring is matched, resetting can be triggered in time or the MCU enters a safe state when a power supply is abnormal or an MCU internal fault occurs, and therefore a high-reliability and high-safety domain controller MCU system is constructed on the hardware architecture level, and the capacity of the MCU for meeting the ASIL D function safety level in a plug-in storage scene is improved.

The invention relates to an open-circuit fault detection method and device, a domain controller, a system and a vehicle, and relates to the technical field of open-circuit fault detection. According to the method, the three-phase current data of the cooling water pump can be firstly obtained, and under the condition that at least one phase of current data in the three-phase current data meets the pre-judged open circuit condition, at least one of the following motor parameters including the three-phase current unbalance degree, rotor data and water pump vibration data is monitored. If it is monitored that any motor parameter in the three-phase current unbalance degree, the rotor data and the water pump vibration data is abnormal, it is determined that the current data meeting the pre-judgment open-circuit condition occurs, and an open-circuit fault occurs to the target phase corresponding to the current data meeting the pre-judgment open-circuit condition. Therefore, under the condition that the suspected open circuit of the corresponding phase is predicted according to the single-phase current, prediction can be performed by fusing at least one motor parameter of the cooling water pump, so that the misjudgment rate of the open-circuit fault of the cooling water pump can be reduced and the open-circuit phase positioning precision can be improved through multi-data cooperative detection.

A domain controller (203) and an energy storage system (200) are provided. The domain controller (203) is used for the energy storage system (200), the energy storage system (200) comprises an energy storage unit (201) and a non-energy storage unit (202), the non-energy storage unit (202) comprises a thermal management unit and a fire fighting unit, and the non-energy storage unit (202) is used for assisting the energy storage unit (201); the domain controller (200) integrates a management module (2011) of the energy storage unit (201) and a management module (2021) of the non-energy storage unit (202) and is used for managing the non-energy storage unit (202) according to state information of the energy storage unit (201), the management strategy of the energy storage system (200) can be reasonably adjusted, and efficient energy-saving management of the energy storage system (200) is achieved.

The embodiment of the invention provides a vehicle interaction control method and system, a vehicle and a computer readable storage medium, and relates to the technical field of vehicles and the technical field of vehicle-mounted intelligent interaction systems. The method comprises the following steps: analyzing and processing multi-dimensional perception information acquired by a vehicle in real time to obtain dynamic scene features; a vehicle interaction scene is constructed based on the dynamic scene features and a scene generation model, and the scene generation model is a dynamic decision model obtained by performing machine learning training based on multi-dimensional perception training data corresponding to the vehicle; performing matching interaction decision on the vehicle interaction scene to generate a target interaction strategy; according to the target interaction strategy, a control instruction is sent to a plurality of domain controllers of the vehicle, and the control instruction is used for triggering the vehicle to execute a multi-mode interaction action. According to the invention, the technical problems of poor environmental adaptability, inaccurate decision and single interaction form of a vehicle-mounted scene perception interaction scheme in the prior art are solved.

Provided is a communication system based on end-to-end data encryption. The system includes a domain controller, an actuator, and a sensor. The sensor is configured to sense vehicle state information and transmit the vehicle state information as sensed to the domain controller through an end-to-end communication protection protocol; and the domain controller is configured to acquire a control instruction based on the vehicle state information as received, and transmit a corresponding control instruction to a corresponding actuator through the end-to-end communication protection protocol. The end-to-end communication protection protocol is additionally provided with a cyclic code that is variable and configured to encrypt information for communication.

The application relates to a centralized electronic and electrical architecture applied to an electric vehicle and the vehicle, wherein the electronic and electrical architecture comprises multiple domains, each domain having a domain controller and multiple sub-domain controllers connected to the domain controller in the domain; at least part of the functions of the domain controller are redundantly realized in the remaining capacity of the sub-domain controllers in the domain through fallback software or in the remaining capacity of the sub-domain controllers belonging to other domain controllers or other domain controllers across domains; each domain has a domain gateway, which is used for coordinately distributing the functions borne by the domain controller of the domain to the sub-domain controllers in the domain and / or other domain controllers across domains and / or the sub-domain controllers belonging to other domain controllers; and the key domain controller functions are redundantly realized in the other controllers in the sub-domain or the other controllers across domains, so that the situation that the domain controller is irreversibly faulty is solved.

The invention provides a vehicle system upgrading method and device, computer equipment and a storage medium, and the method comprises the steps: creating a block chain block containing domain control upgrading information in response to a domain control upgrading instruction, and determining a to-be-upgraded domain control node; carrying out upgrading operation on the domain control node based on the domain control upgrading instruction to obtain an upgraded state parameter of the domain control node, and writing the upgraded state parameter into a block chain block; and verifying the upgraded state parameter based on the block chain block, if the upgraded state parameter of any domain control node is abnormal, performing version rollback on the domain control node, and writing a version rollback result into the block chain block. Based on the scheme, the state consistency, safety and traceability of the upgrading process of the multi-domain controller of the automatic driving vehicle are ensured, an automatic disaster recovery and rollback mechanism is provided, and the reliability and safety of the system are remarkably improved.

The invention relates to a safety certification method and device of vehicle-mounted equipment, electronic equipment and a storage medium, and the safety certification method of the vehicle-mounted equipment is applied to a vehicle-mounted domain controller integrated with an HSM. The SOC generates a security service request containing to-be-processed data and an operation instruction according to the digital certificate and the identity authentication operation, and sends the security service request to the MCU; and the MCU receives and analyzes the security service request to obtain to-be-processed data and an operation instruction, and calls the HSM, and the HSM executes identity authentication type cryptographic operation on the to-be-processed data according to the private key and the operation instruction, and returns an operation result to the SOC. The HSM integrated in the vehicle-mounted domain controller realizes a security authentication function without externally hanging a special security chip, and the private key is always stored in the HSM and is not exported, so that the security of the vehicle identity key is ensured.

The invention provides a multi-interface test tool and test method applied to an external component of a domain controller. The multi-interface test tool comprises an FPGA (Field Programmable Gate Array) unit, a storage unit, a power management unit, a plurality of component interface units and a debugging interface unit, and each component interface unit can be externally connected with an external component of a domain controller. And the FPGA unit can test the domain controller external component currently connected with each component interface unit by loading the test tool mirror image in the storage unit. According to the invention, testing of various external components of the domain controller can be completed through one testing tool, and parallel testing of multiple components is supported.

The present application relates to a braking method for an adaptive cruise control system (ACC), the method comprising: receiving an engine drag torque limit value of the vehicle; performing a correction of the engine drag torque limit value according to the vehicle's longitudinal speed and the actual torque value of the vehicle's engine; and determining, according to the corrected engine drag torque limit value, whether braking is performed via the vehicle stability control system (ESP). The present application further relates to a computer program product, a computer-readable storage medium, and a domain controller.

The invention discloses a vehicle power distribution method, device and equipment based on a centralized domain controller, and a storage medium. The method comprises the following steps: collecting multi-source vehicle power distribution associated data through a centralized domain controller; wherein the centralized domain controller is a vehicle part integrating a whole vehicle control unit, an intelligent power distribution unit, a communication gateway unit and a redundant power supply module into a single shell; performing fusion processing on the multi-source vehicle power distribution associated data to obtain target fusion data; generating a vehicle power distribution control instruction based on a pre-constructed load power supply priority rule, a preset software configuration rule and the target fusion data; and on-off states of a large-current power distribution module and a small-current intelligent power distribution module of the intelligent power distribution unit are controlled based on the vehicle power distribution control instruction so as to realize power supply of each load. The technical effects of improving the integration level and the control precision of the power distribution system and guaranteeing the power supply stability are achieved.

The invention relates to an intelligent driving domain controller maintenance system and method for a vehicle. The system comprises a first system-on-chip, a micro-control unit and a second system-on-chip. The micro-control unit is used for cooperating with the first system-on-chip to execute an intelligent driving function of the vehicle; the second system-on-chip is connected with the first system-on-chip and the micro-control unit; wherein the second system-on-chip is configured to be in wireless connection with external debugging equipment of the intelligent driving domain controller so as to execute online operation on the first system-on-chip and the micro-control unit in a wireless mode, and the online operation comprises at least one of online debugging, log obtaining and software damage recovery operation. Therefore, the debugging and maintenance efficiency, flexibility and reliability of the intelligent driving domain controller can be improved.

The invention relates to a multi-vehicle automatic driving simulation system and method supporting DORA middleware, and belongs to the technical field of automatic driving. The system comprises a simulation platform and a domain controller group. The simulation platform comprises a multi-vehicle Dora-bridge, traffic scene simulation software and vehicle dynamics simulation software, the multi-vehicle Dora-bridge receives multi-vehicle state data, sensor data and vehicle cooperative control information generated by the traffic scene simulation software, and the multi-vehicle Dora-bridge publishes the multi-vehicle state data, the sensor data and the vehicle cooperative control information in the form of a DORA topic for each domain controller to subscribe; meanwhile, control instructions issued by the domain controllers in the form of DORA topics are received and issued to the vehicle dynamics simulation software. The domain controller group comprises a plurality of domain controllers, each domain controller corresponds to one automatic driving vehicle, and software of the domain controller group consists of a plurality of DORA function nodes to realize an automatic driving function. According to the invention, an effective solution is provided for simulation of the multi-vehicle automatic driving system based on the DORA middleware, the development efficiency is improved, and the development cost is reduced.

The domain controller comprises a first shell and a second shell which define a containing cavity; the circuit board is arranged in the containing cavity and provided with a chip, and a plug hole is formed in the circuit board; the soaking plate is arranged in the accommodating cavity, a plug-in end matched with the plug-in hole is formed on the soaking plate, a limiting part expanding outwards is formed on the plug-in end, and the soaking plate is plugged on the circuit board and is limited by the limiting part to move, so that the first surface of the soaking plate is tightly pressed on the chip; and the fastener is connected with the first shell, the circuit board and the second shell, so that the second surface of the vapor chamber is attached to the inner wall of the first shell. The invention also provides a manufacturing method of the movable platform and the domain controller. Wherein the vapor chamber is inserted and fixed in an insertion hole of the circuit board by using an insertion end, and the movement is limited by a limiting part, so that the distance between the vapor chamber and the chip is only determined by the manufacturing tolerance of the vapor chamber and the process tolerance of welding the chip on the circuit board, and the precompression formed on the chip by the vapor chamber can be kept unchanged by strictly controlling the tolerances.

The invention discloses a key acquisition method, device and system, a vehicle, a computer storage medium and a program product. The method is applied to a cockpit domain controller of a vehicle, and comprises the following steps: receiving a first input for a vehicle operation mode, and generating a request parameter of a target service interface based on a mapping relationship between the first input and the service interface; sending the request parameter of the target service interface to the vehicle-mounted communication terminal, so that the vehicle-mounted communication terminal generates a request parameter of a target connection mode based on the request parameter of the target service interface and executes a key acquisition operation; and receiving a key acquisition execution state returned by the vehicle-mounted communication terminal. The flexibility and reliability of the key acquisition process can be improved.

A winch control apparatus (100) for a vehicle, a control system (200), a vehicle (1000), a winch control interaction method, an interaction apparatus (500), an interaction system (600), and a computer readable storage medium (700). The winch control apparatus (100) comprises a domain controller (20) and a high-voltage winch (30). The domain controller (20) is used for sending a control signal to the high-voltage winch (30). A controller (31) is used for receiving the control signal, and controlling a motor (32) on the basis of the control signal. Therefore, the controller can interact with the whole vehicle, thereby improving the convenience of control over the high-voltage winch.

The invention provides a driving function processing method, electronic equipment and a vehicle, and is applied to the technical field of data processing, configuration information of all driving functions which can be executed by an intelligent driving domain controller is acquired, and the configuration information is used for indicating whether the driving functions need to be displayed in a cabin or not; determining an indication signal corresponding to each driving function based on the configuration information; according to the invention, the indication signal is set in the protocol signal, and the protocol signal is sent to the cabin controller, i.e., in the protocol signal sent by the intelligent driving domain controller, the indication signal can clearly indicate whether each driving function needs to be displayed in the cabin. In specific implementation, after the cabin controller receives the protocol signal, the driving function can be displayed and hidden only based on the received protocol signal, and the display content of the vehicle machine screen can be flexibly adjusted so as to ensure that the display content of the vehicle machine screen is matched with the function requirement of the intelligent driving domain controller.

The invention discloses a domain controller automatic test scheduling method and system based on a hierarchical software architecture, and relates to the technical field of automatic test and industrial control, and the method comprises the steps: S1, constructing an automatic test system of the hierarchical software architecture which at least comprises a hardware drive abstraction layer and a test application layer, the hardware drive abstraction layer is used for uniformly packaging bottom layer drives of a board card, a signal conditioning module, a relay matrix and a power supply module in the test system, and providing a standardized interface irrelevant to specific hardware for the test application layer; according to the domain controller automatic test scheduling method and system based on the hierarchical software architecture, the comprehensive requirements of a new energy automobile power domain controller on high-efficiency, high-reliability and high-consistency automatic test in research, development, verification and mass production stages are better met.

The invention discloses a vehicle-mounted domain controller verification protection method and system, electronic equipment and a storage medium, and relates to the field of vehicle machine safety control, and the method comprises the steps: electrifying an HSM, starting an HSM Boot process, and carrying out an initialization operation; checking and pulling up an HSM APP process and sending an HSM state to a control layer; the HOST is powered on, the HOST Boot process is started, a verification request is sent to the HSM APP through the control layer, and the integrity and legality of the HOST Boot and the HOST APP are verified; the control layer performs trust evaluation on the received HOST request and forwards the request to the HSM APP after the evaluation is passed, and the HSM APP feeds back a calling result and supports the HOST Boot to complete verification and pull up the HOST APP; and the control layer continuously monitors the operation state of the HOST, and performs dynamic access control on the request of calling the HSM APP interface by the HOST APP according to the real-time trust evaluation result. According to the method, by introducing a dynamic authorization and continuous verification mechanism, normal form conversion of the trusted computing system from static defense to dynamic verification is realized, and the safety of the vehicle-mounted domain controller is further improved.

Disclosed in the present application are a head unit resource dynamic allocation method based on application weight values, and a vehicle and a medium. The method comprises the following steps: classifying applications in a domain controller (S1); assigning different dynamic weight values to each application in the domain controller (S2), wherein the dynamic weight values specifically comprise a category weight value, a response weight value and a scenario weight value; and on the basis of the dynamic weight values of each application and a target threshold value, dynamically allocating hardware resources of the domain controller (S3).

This invention belongs to the field of vehicle network information technology, specifically relating to a method for self-identification of modularly reconfigurable vehicle configurations. It solves the problems of cumbersome manual vehicle configuration operations and low scalability in existing methods. Based on a multi-bus network topology, this invention integrates the attribute information of domain controllers on each independent module into the vehicle controller. This includes attribute identification of each module's information, integration of attribute information configuration tables, and distribution of attribute information configuration tables. This achieves interconnectivity of the entire vehicle's information architecture and plug-and-play functionality under module changes. The self-identification algorithm for vehicle configuration in this invention achieves rapid and accurate configuration of modularly reconfigurable vehicles through automation and intelligence, improving vehicle adaptability and flexibility, and providing strong technical support for future intelligent transportation systems.

The embodiment of the invention relates to a vehicle-mounted data transmission method and system and electronic equipment. The method comprises the following steps: acquiring request data generated by a vehicle-mounted domain controller on a vehicle; determining a virtual network card corresponding to the request data based on the source of the request data; determining a network port corresponding to the virtual network card; performing domain name resolution on the request data to obtain a target server address; and sending the request data to the target server through the network port according to the target server address. According to the embodiment of the invention, the corresponding relation between the virtual network card and the network port is constructed, the network data transmission capability is provided for the vehicle-mounted domain controller on the vehicle, the domain controller can fully utilize the network to carry out more data processing, the vehicle-mounted terminal does not need to carry out excessive data processing on the data received and transmitted by the vehicle-mounted domain controller, and the data transmission efficiency is improved. Therefore, the utilization rate of vehicle-mounted hardware resources is improved, and the data transmission efficiency is improved.

The invention provides a domain controller test case intelligent generation method and system based on a knowledge graph, belongs to the technical field of automobile electronic testing, and is used for solving the problems of insufficient coverage rate, low efficiency and difficulty in knowledge inheritance of domain controller testing in related technologies. According to the method, a test knowledge graph fusing a functional architecture, historical data and expert experience is constructed, vector representation of nodes and relationships is learned by using a graph neural network, an optimized test path is generated through intelligent reasoning, then an extended test case is generated through a multi-dimensional generalization technology, and finally continuous optimization is performed through closed-loop quality evaluation. The test coverage rate and the design efficiency can be remarkably improved, and systematic precipitation and reuse of test knowledge are achieved.

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.

Embodiments of the present application provide a vehicle collision unlocking system and method, and a vehicle. The vehicle collision unlocking system comprises a collision detection unit, a plurality of domain controllers, and a plurality of door lock mechanisms; the collision detection unit is connected to any one of the plurality of domain controllers by means of at least two lines; and any one of the plurality of domain controllers is connected to at least one door lock mechanism. In this way, since the collision detection unit is connected to any one of the plurality of domain controllers by means of the at least two lines, upon acquiring a collision signal, the collision detection unit can send, by means of the at least two lines having different communication modes, the collision signal to the domain controller connected thereto, thereby realizing redundant transmission of the collision signal, improving the possibility of the domain controller receiving the collision signal, ensuring the safety of the vehicle. Additionally, since the collision detection unit is connected to only one domain controller rather than establishing redundant lines with all controllers, the overall wiring harness cost can be reduced.

Grounding spring for domain controller, domain controller and movable platform, the domain controller comprises a shell and a printed circuit board arranged in the shell, the printed circuit board is provided with a connector and a copper exposed area, the grounding spring comprises a connecting portion capable of being arranged on the shell, and a first cantilever and a second cantilever are formed in extension by the connecting portion, the number of the first cantilever is not less than the number of the connector, so that at least one first cantilever can be abutted on each connector, and the second cantilever can be abutted on the copper exposed area.The grounding spring provided by the utility model can be directly arranged on the shell, in the assembling process of the shell and the printed circuit board, the first cantilever replaces the plurality of conductive foam in the prior art, and the second cantilever replaces the plurality of upper springs in the prior art which are welded on the printed circuit board through SMT, so that the overall structure and the assembling process of the domain controller can be simplified, and the manufacturing cost of the domain controller is also reduced.

The application provides a vehicle steering anti-collision method and related device, storage medium and program, which can be applied to an automatic driving domain controller of a target vehicle. The method comprises the following steps: determining a reference trajectory scene according to historical driving images of the target vehicle; determining X reference position points in the reference trajectory scene; performing relevant operations on the X reference position points, obtaining Y key position points from the X reference position points, and a plurality of standard vehicle body postures corresponding to each key position point in the Y key position points; and performing relevant operations when detecting that the target vehicle enters the reference trajectory scene, completing anti-collision safety detection and reminding of the target vehicle at a detection area at a preset distance from the Y key position points, so that the target vehicle does not have a collision event when performing a continuous steering operation. In this way, the user's adjustable space for the vehicle is avoided to be too small due to too late reminding, and the user's use experience is improved.

This invention relates to the field of vehicular network testing technology, and discloses a domain controller network testing system, method, and apparatus. The system includes multiple vehicular Ethernet converters, Ethernet switches, and bus controllers. Each vehicular Ethernet converter is connected to a domain controller under test, and each vehicular Ethernet converter is also connected to the Ethernet switch. Each domain controller under test is also connected to the bus controller. The Ethernet switch and the bus controller are both connected to a host computer. The host computer is configured to: receive on / off configurations for the channels between the Ethernet switch and at least one of the domain controllers; receive test requests and send test signals to the bus controller; and acquire messages transmitted and received at a specified bus listening port or mirror port to obtain test results. This invention enables arbitrary channel configuration between domain controllers, meeting various testing requirements.

The application discloses a domain controller function test method and device based on CANoe, and the method comprises the following steps: according to a preset function test strategy, a low-voltage programmable power supply outputs corresponding target test voltage to the domain controller and the CANoe device to supply power to the domain controller and the CANoe device through the target test voltage, and the preset function test strategy is used to adjust the voltage value of the target test voltage; after the low-voltage programmable power supply provides the target test voltage to the domain controller and the CANoe device, the communication message interaction result between the domain controller and the CANoe device is determined; and according to the communication message interaction result, the function test result corresponding to the domain controller is determined. It can be seen that the embodiment of the application can improve the function test accuracy of the domain controller, and can improve the determination accuracy of the real-time function running state of the domain controller, thereby improving the determination efficiency and accuracy of determining whether the domain controller normally runs the corresponding function.