1222 results about "Domain controller" patented technology

The invention provides an adaptive path selection system based on GNN and multi-agent DRL, which is based on a layered multi-domain SDN architecture and comprises a root server layer, a domain controller layer and a data layer. The root server layer comprises a root server and a root agent, and the root agent is used for calculating a global routing path strategy and optimizing and adjusting a routing path according to feedback of a local network domain. And the root server distributes the routing path to a domain controller layer according to a routing path strategy to carry out routing path forwarding and adjustment of a local network domain. The domain controller layer comprises a plurality of domain controllers and domain intelligent agents, the domain controllers construct a topological structure composed of boundary switches, and a routing decision is made in a local domain according to an optimal global routing path strategy. And the domain intelligent agent performs modeling analysis on the topological structure by using a deep reinforcement learning algorithm in combination with a graph neural network to realize intra-domain path selection. And the data plane layer feeds back the network topology information to the domain controller, and receives and executes a routing decision sent by the domain controller at the same time.

The invention discloses a power domain controller system, which relates to the technical field of vehicle design and research and development and comprises a domain control board, a power module and a high-voltage power distribution part, the domain control board comprises a vehicle control unit, a heat management controller, a battery management system, a gear shifting controller and a power distribution control unit, wherein the heat management controller, the battery management system, the gear shifting controller and the power distribution control unit are electrically connected with the vehicle control unit. The heat management controller is electrically connected with the power distribution control unit. The power module comprises a slow charging motor, a DCDC converter and a relay, the slow charging motor is electrically connected with the battery management system, and the DCDC converter is electrically connected with the gear shifting controller; and the high-voltage power distribution part comprises a copper bar, a relay and a fuse. Through multi-module integration, the number of physical controllers and wiring harness complexity are reduced, the system development and maintenance cost is remarkably reduced, and meanwhile platform expansion is facilitated.

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.

An OTA security update method and system for intelligent connected vehicles are provided. The method includes: the downloaded software update packet from a CDN to UC-master is decrypted, and verified for the first time through signature verification; for the secondary verification, decomposing a current software update packet into a plurality of sub-packets; calculating HASH values of the sub-packets in sequence; thereafter, constructing a Merkle tree according to these HASH values; calculating a root HASH value of the Merkle tree; after the sub-packets are transferred from a UC-master to ECU-UAs through a gateway or a domain controller, recalculating the HASH values of the sub-packets; reconstructing the Merkle tree according to these HASH values; recalculating the root HASH value of the Merkle tree; comparing the two HASH values; if they are equal, starting a normal update procedure; otherwise, terminating this OTA update by the UC-master immediately.

The invention discloses a cross-domain time-sensitive satellite network traffic scheduling method based on a TSN and MF-TDMA, and the method comprises the steps: a cross-domain controller collects network topology information, builds a satellite cluster global network model, carries out the collection of data and task demands, and a user controller collects an intra-domain sending end traffic access request, the traffic demand is reported to the cross-domain controller and the in-satellite controller; the cross-domain controller performs flow characteristic analysis and establishes a flow model; the in-satellite controller evaluates the network load, constructs a dynamic network resource state information base, and determines the traffic scheduling granularity according to the long-time stable service; according to the positions of the source node and the destination node of the service flow, the cross-domain controller and the in-satellite controller respectively calculate the scheduling paths of the cross-domain flow and the single-domain flow; and according to the routing result of each flow, based on the scheduling decision variable, establishing a wireless and wired joint scheduling constraint and optimization target, generating an integer linear equation, and solving an optimal solution to generate a scheduling scheme.

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 present application belongs to the technical field of vehicles. Disclosed are a diagnosis method, apparatus and device, a storage medium and a vehicle. The method is applied to a power domain controller of an extended-range electric vehicle, and comprises: receiving a diagnosis request sent by an engine controller of the extended-range electric vehicle, wherein the execution of a diagnosis task corresponding to the diagnosis request is related to a range extender of the extended-range electric vehicle; in response to the diagnosis request, acquiring the discharge capacity of a battery of the extended-range electric vehicle and the power requirements of the extended-range electric vehicle; and when the discharge capacity meets the power requirements, controlling the range extender to be in an operating state corresponding to the diagnosis task, and executing the diagnosis task.

A vehicle diagnosis method and an apparatus. The method is applied to a vehicle comprising at least one component, the at least one component comprising at least one domain controller. The method comprises: a first domain controller amongst the at least one domain controller receiving a diagnosis instruction from a server (S1001), the diagnosis instruction being used for initiating diagnosis of a component to be diagnosed, and the component to be diagnosed being one or more components amongst the at least one component comprised in the vehicle; and then, according to the diagnosis instruction, the first domain controller acquiring data to be diagnosed of the component to be diagnosed (S1002), said data being used for diagnosing the component to be diagnosed. This method can solve the problems that software faults, performance reliability and the like of domain controllers in vehicles are difficult to diagnose by means of reading fault codes, data streams, etc., thereby achieving diagnosis of domain controllers in vehicles.

The invention provides a multi-sensor domain controller dynamic management method and a domain controller system, and the method comprises the following steps: S1, taking an external Ethernet gateway as a main clock source, and carrying out the time service of an MCU module in a domain controller based on a GPTP protocol; s2, the MCU module serves as a secondary clock source, distributes synchronous clock signals to the SOC module and an external sensor and collects clock skew data in real time; s3, when the main clock source fails, automatically switching to an internal GNSS module and an IMU module as standby clock sources, and dynamically compensating a time sequence error based on historical clock skew data; s4, controlling a global time synchronization error to be less than 150 microseconds through hardware-level timestamp marking and a software-level error correction algorithm; and S5, based on the synchronized time sequence data, performing timestamp alignment and fusion on the heterogeneous data input by the multiple sensors. According to the invention, the problems of clock redundancy and insufficient error compensation in the prior art are solved.

The invention provides a vehicle diagnosis system and method, a storage medium and a vehicle. The vehicle diagnosis system at least comprises a master management module and a plurality of slave management modules. The main management module is used for communicating with each slave management module based on a wireless link so as to collect the state information of the corresponding domain controller collected by each slave management module, and performing diagnosis analysis on each domain controller based on the state information so as to obtain a diagnosis result; wherein the slave management module is also used for storing the acquired state information when the wireless link is detected to be abnormal, so as to transmit the stored state information to the master management module after the wireless link is recovered to be normal. According to the invention, the conditions of the domain controller and the modules thereof can be effectively monitored and analyzed, and the overall stability and information processing efficiency of the system are improved; and the slave management module can keep the storage of key information, so that the data cannot be lost, and the stability and the service quality of the system are further guaranteed.

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.

The invention relates to a vehicle control method, device and system based on a wading detection function and a vehicle. The method is applied to a domain controller of a vehicle and comprises the steps that after the vehicle enters a wading mode, the wading depth is obtained through a wading detection sensor, and the temperature and humidity of the environment where the vehicle is located and the running speed of the vehicle are obtained. According to the temperature and humidity, the driving speed and the fording depth, the fording risk level of the vehicle is determined, and the fording risk level is used for indicating the current fording safety degree of the vehicle. And controlling at least one actuator in the vehicle according to the wading risk level. The sensors and the actuators are directly connected with the domain controller for data acquisition and analysis, and the domain controller directly controls the actuators in the vehicle, so that delay caused by transmission between electronic control units is effectively avoided, quick response can be realized in a wading mode, the vehicle can be controlled, and the driving safety of the vehicle is improved. And the safety requirement under the wading condition is met.

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 positioning method and device, electronic equipment and a storage medium, and the method is applied to a simulation system, and comprises the steps: collecting the current coordinates and vehicle pose data of a simulation vehicle on a target map in a process of controlling the simulation vehicle to operate in an intelligent driving simulation scene; converting the current coordinate based on the projection mode of the target map to obtain a target coordinate, the target coordinate being a coordinate corresponding to the coordinate type required by the domain controller; the target coordinates and the vehicle pose data are coupled to obtain coupling data, the coupling data are sent to a domain controller, and the coupling data are applied to vehicle positioning of the auxiliary domain controller. According to the invention, the technical problem that the precision is low when a simulation test is used for vehicle positioning in the prior art is solved.

The invention discloses a vehicle diagnosis method and device and relates to the technical field of vehicles. The method can solve the problem that the software fault, the performance reliability problem and the like of the domain controller in the vehicle are difficult to diagnose by reading fault codes, data streams and the like, and realizes the diagnosis of the domain controller in the vehicle. The method is applied to a vehicle including at least one component including at least one domain controller therein. The method comprises the steps that a first domain controller in at least one domain controller receives a diagnosis instruction from a server, the diagnosis instruction is used for initiating diagnosis of a to-be-diagnosed component, and the to-be-diagnosed component is one or more of at least one component contained in a vehicle. And then the first domain controller obtains to-be-diagnosed data of the to-be-diagnosed part according to the diagnosis instruction, wherein the to-be-diagnosed data is used for diagnosing the to-be-diagnosed part.

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.

The invention provides a vehicle electromagnetic compatibility radiation anti-interference test method and device, a vehicle and a medium, and relates to the field of vehicle testing, and the method comprises the steps: shielding a wire harness between a first domain controller and a second domain controller, and obtaining a wire harness shielding result; the shielding layer located at the first domain controller end or the shielding layer located at the second domain controller end is grounded, the shielding layer at the other domain controller end is suspended, and capacitive coupling is formed between the shielding layer and the ground plane; and carrying out electromagnetic compatibility radiation anti-interference test on the vehicle according to a wire harness shielding result and capacitive coupling. According to the invention, the wire harness between the first domain controller and the second domain controller is fully shielded, so that a high-frequency interference coupling path can be blocked; and the shielding layer of the first domain controller end or the second domain controller end is grounded, and then the shielding layer of the other domain controller end is suspended to form single-end grounding, so that high-frequency interference can be prevented from entering a communication link through wiring harness coupling.

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 provides a vehicle-mounted large model collaborative arbitration method, system and device, a storage medium and a vehicle. The method comprises the steps that voice input is collected, a voice recognition result is obtained, semantic enhancement processing is conducted on the voice recognition result through a first large model deployed in a first domain controller, and a first intention recognition result is generated; collecting visual input and obtaining a visual recognition result, and performing fusion processing on the voice recognition result and the visual recognition result by using a second large model deployed in a second domain controller to generate a second intention recognition result; arbitrating the first intention recognition result and the second intention recognition result, and determining one as a final intention; and distributing the final intention to a corresponding large model or a vehicle control module for execution. According to the invention, the application effect of the vehicle-mounted large model can be optimized, and the intelligent level of the cabin is improved.

The invention belongs to the technical field of automotive electronics and electrical, and particularly relates to an intelligent vehicle electronic and electrical architecture based on central domain control, which comprises a CCU (central control unit) and a ZCU (zero control unit) which are in communication connection through Ethernet or CAN (FD). The ZCU area controllers are at least arranged on the front portion, the middle of the left side, the middle of the right side and the rear portion of the vehicle and connected to the electric control components at the corresponding positions. The CCU provides power distribution and intelligent protection for the central computing platform and the ZCU area controller; on the hardware architecture, the number of used ECUs can be extremely reduced, a traditional architecture mode according to function domains is broken up, and the function of distributing nearby according to position areas is achieved; the SOA service-oriented development and design concept is adopted on the software architecture, interfaces between the hierarchies are clear, and the novel architecture based on the hardware integrally improves the development efficiency and interface reuse, powerfully supports user-defined scenes, greatly expands the vehicle use scenes and improves the value.

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 hierarchical and domain-divided networked cooperative computing system and a working method. The hierarchical and domain-divided networked cooperative computing system comprises a three-level architecture of a satellite computing domain, an edge computing domain and a global computing domain, the satellite computing domain is composed of an intelligent computing domain, a data storage domain, a satellite domain controller and a satellite-borne switch, and is connected with the edge computing domain through a satellite-borne gateway; the edge computing domain is composed of a plurality of satellite computing domains, a satellite-borne gateway and an edge domain controller, and is connected with the global computing domain through a ground gateway; the global computing domain is composed of a plurality of edge computing domains, a ground gateway and a global domain controller; the system realizes hierarchical control through the satellite domain controller, the edge domain controller and the global domain controller, and supports cross-domain task cooperative processing. According to the space-based edge computing architecture, the architecture is universal, and the space-based edge computing architecture is elastically extensible, and the diversified cooperative processing requirements of satellites with different networking scales such as single satellites, multiple satellites and constellations are met through functional domain division and classification design.

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 invention provides a domain controller shell assembly and a domain controller, the domain controller shell assembly comprises a main board, the main board is provided with a first surface and a second surface opposite to the first surface, the end part of the main board is provided with a water inlet nozzle and a water outlet nozzle, and the water inlet nozzle and the water outlet nozzle are communicated with the main board; a U-shaped flow channel connected to the water inlet nozzle and the water outlet nozzle respectively is arranged on the first surface of the main plate; the flow channel cover plate is mounted on the U-shaped flow channel, so that a closed flow channel is formed between the main plate and the flow channel cover plate; the first shell is combined to the first surface of the main board and covers the first surface and the flow channel cover plate; the second shell is combined to the second surface of the main board and covers the second surface; a plurality of PCBs can be installed in the domain controller shell assembly, compact arrangement of the shell structure is achieved, and efficient heat dissipation and reliable protection can be provided for the PCBs.

The invention discloses a fault uploading system and method for a domain controller in the technical field of automobiles, electronic equipment and a medium. The system comprises a diagnostic event management module, a diagnostic event monitoring module and a communication module, the diagnosis event management module is used for acquiring a real-time fault list; the diagnosis event monitoring module is used for acquiring diagnosis fault codes in the fault list according to a set period, and storing the diagnosis fault codes into corresponding data sending cache regions respectively according to the codes of the sub-control units; and the communication module is used for calling a CANFD communication channel bound with the sub-control unit code, and sending the diagnosis fault code to a CANFD bus based on the set data structure body in the data sending cache region. By adopting the method, the delay and complex operation caused by the traditional method of obtaining the fault information by depending on external diagnosis equipment can be avoided, and the fault information of the plurality of sub-control units can be uploaded independently, sectionally and parallelly.

The present invention discloses a vehicle domain controller, a data security implementation method, a storage medium and a vehicle, wherein the vehicle domain controller comprises a communication module, a security module and at least one control module and a protocol stack corresponding to a target communication protocol is integrated into the security module and the control module, wherein: at least one control module is connected to the communication module, the communication module is connected to the security module, the control module serves to send a security service request to the security module based on the target communication protocol by means of the communication module, and the security module serves to provide a corresponding security service to the control module according to the security service request.

The invention relates to the field of intelligent vehicle auxiliary driving, in particular to an L2-level auxiliary driving system, method and device based on chassis central domain control and a vehicle. According to the invention, a chassis domain and an ADAS domain are all integrated into a domain controller with higher operational capability, multiple control units and multiple transverse and longitudinal ADAS functions are integrated and coupled on a hardware domain control platform, the product cost of multiple controllers is reduced, internal communication of a chip is realized, the transmission interaction efficiency is higher, the structure is simpler, and the cost is lower. And the effects of engineering, mass production, high modularization degree and manufacturing cost reduction are achieved. Coupling control based on transverse and longitudinal functions is different from speed limit reminding control of the passenger car, comprehensive judgment can be carried out, comprehensive, effective and timely information can be provided, continuous transverse and longitudinal cooperative control is carried out, intelligent speed limit control can be directly carried out according to the road traffic condition and the vehicle state system, the safety and convenience of L2 auxiliary driving are improved, and the driving safety is improved. And the device is more suitable for being used under suburban driving conditions.

The vehicle-mounted domain controller structure comprises a metal frame, a heat dissipation module, a top cover assembly and a bottom cover, a first installation cavity and a second installation cavity are integrally formed in the metal frame, and the two installation cavities are physically isolated through a continuous metal partition plate; a high-speed signal board is fixedly mounted in the first mounting cavity, and a main control board is fixedly mounted in the second mounting cavity; and the plate surface of the continuous metal partition plate is respectively parallel to the mounting plane of the high-speed signal plate and the mounting plane of the main control plate. According to the vehicle-mounted domain controller structure provided by the invention, through rigid physical separation and continuous electromagnetic shielding, effective isolation of a high-speed signal circuit and a high-power main control circuit in a physical space and an electromagnetic environment is fundamentally realized, and an inter-board coupling noise path is thoroughly blocked; and the signal integrity, the electromagnetic compatibility, the thermal management efficiency and the long-term reliability of the whole system are obviously improved.