1870 results about "Domain controller" patented technology

A database of text associated with different domains is maintained. Large language models (LLMs) are prepared for use in the different domains by providing the associated text to an instance of an LLM. Thus, using multiple instances of the same pre-trained LLM, domain-specific LLMs are generated. The text provided to the LLM instance may be selected based on an account identifier of the user accessing the LLM, the tenant accessing the LLM, a user selection of a domain, or any suitable combination thereof. A pool of prepared LLM instances may be generated before the access request is received. If a response provided by an LLM instance in a domain to a prompt was rejected by a user and additional information was received during the session to improve the response of the LLM instance, the additional information may be to the text used to prepare future LLM instances for the domain.

The utility model provides a domain controller and a movable platform, and the domain controller comprises a housing, a heat dissipation assembly and a circuit board are stacked in the housing, one side, facing the heat dissipation assembly, of the circuit board is provided with a first chip, the heat dissipation assembly is provided with a first heat dissipation boss, and one side, deviating from the circuit board, of the heat dissipation assembly is also provided with an elastic member in a compressed state. The first end of the elastic piece abuts against the shell, the second end of the elastic piece abuts against the heat dissipation assembly so that the first heat dissipation boss can abut against the first chip, the shell is provided with a supporting part, and the supporting part abuts against the circuit board. The elastic piece in the compressed state is arranged on the side, away from the circuit board, of the heat dissipation assembly, so that the first heat dissipation boss tightly abuts against the first chip, and the distance between the first heat dissipation boss and the first chip is reduced; the shell is provided with the corresponding supporting parts to support the circuit board, so that the stress borne by the circuit board is reduced, and the risk of cracking of the first chip is reduced.

The invention relates to a wheel speed redundancy detection system and method, computer equipment, a storage medium and a vehicle. The system comprises four groups of wheel speed detection modules and a first domain controller, the wheel speed detection module comprises a transmission, a driving motor, a rotary transformer sensor and a motor controller; the transmission is connected with wheels of the vehicle; the driving motor is respectively connected with the transmission and the motor controller; the rotary transformer sensor is arranged on the driving motor and is connected with the motor controller; the motor controller is also connected with the first domain controller, and is used for collecting the resolver signal, obtaining a motor rotating speed according to the resolver signal, and obtaining a corresponding wheel rotating speed according to the gear information of the transmission and the motor rotating speed; the first domain controller is used for performing motion control on the vehicle according to the wheel rotating speed. Redundancy of the vehicle wheel speed signals can be achieved based on the rotary transformer sensor, a wheel speed sensor does not need to be used, and a corresponding sensor wire harness does not need to be added, so that the vehicle using cost can be reduced, and the vehicle development period is shortened.

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.

Provided is a process including: obtaining, with a domain controller of a private computer network, a set of user-authentication credentials comprising a first username and a first password; querying a distributed credential-monitoring application; receiving query results including one or more passwords associated with the first username; determining that at least some of the one or more passwords in the query results match the obtained first password; and in response to the determination, blocking, with the domain controller, access to a first user account on the private computer network associated with the obtained first username and first password.

The invention provides a power supply control method, a target domain controller and a storage medium, and relates to the technical field of automatic driving and functional safety. The method is applied to a target domain controller which is connected with multiple power supplies. The method comprises the following steps: determining an automatic driving level of an automatic driving system of a target vehicle; if the automatic driving level is higher than or equal to the target level, determining an effective power supply in the multiple paths of power supplies; if the effective power supply comprises a reference power supply, using the reference power supply to supply power to the target domain controller; and if the effective power supplies do not include the reference power supply, using any one of the effective power supplies to supply power to the target domain controller. The problem of potential safety hazards existing in a single power supply method is avoided, power redundancy is provided for the target domain controller, and it is ensured that the target domain controller can obtain stable and reliable power supply when the automatic driving system is at the key level.

According to the domain controller redundancy system of the intelligent heavy-duty vehicle and the control method, a redundancy mode that an intelligent driving domain and a chassis domain can take over each other is provided on the basis of an existing domain control architecture scheme, so that the intelligent driving domain and the chassis domain can be controlled by each other to achieve low-speed limp or safe parking of the vehicle when the intelligent driving domain and the chassis domain separately break down; while the reliability of the control system suitable for the vehicle is effectively improved, the cost of redundancy control is also obviously reduced.

The invention relates to the technical field of automobile testing, and discloses a finished automobile testing method, device and system and a storage medium, the method is applied to an external domain controller establishing communication connection with a tested automobile, and the method comprises the steps of obtaining automobile control information, the vehicle control information is generated based on a preset test path and positioning information of the test vehicle, and the preset test path is used for specifying a driving route of the vehicle in a test site; controlling the test vehicle to run according to the vehicle control information; and in the vehicle driving process, aiming at the tested vehicle, collecting performance data representing the test condition. According to the technical scheme provided by the invention, the whole vehicle testing efficiency can be improved.

The invention relates to the technical field of vehicle Internet of Things, and discloses a vehicle control method and device based on Internet of Things equipment, a vehicle and a storage medium, and the method comprises the steps: obtaining equipment configuration information of the Internet of Things equipment through a network connection domain controller, generating a plurality of standard service interfaces, generating an equipment registration request, and transmitting the equipment registration request to a cloud end; and the cloud end obtains the vehicle control authority according to the equipment configuration information and sends the vehicle control authority to the network connection domain controller. Then, the network connection domain controller performs permission configuration on the plurality of standard service interfaces based on the vehicle control permission to obtain a target service interface conforming to the vehicle control permission, so that the Internet of Things equipment can send a target control instruction consistent with the permission range of the target service interface through the target service interface; the network connection domain controller reasonably controls the vehicle according to the target control instruction, so that the vehicle is prevented from mistakenly executing an unauthorized instruction of the equipment, the driving safety of the vehicle is effectively ensured, authority control can be performed on data transmission between the vehicle and the Internet of Things equipment, and the data safety is ensured.

The invention provides a software integration method and a software management system of a power domain controller, and belongs to the field of automobiles, the method comprises the following steps: generating an ARXML file based on a variable data type and a system transfer function interface defined in a software architecture; based on the ARXML file, generating a code file of the basic software; based on the ARXML file, a code file of the application software is generated, and the code file of the application software is matched with the software interface described by the ARXML file; based on the ARXML file, a code file of a middle layer is generated, the middle layer is used for connecting the basic software and the application software, and the code file of the middle layer is matched with the software interface described by the ARXML file; and performing integrated compiling on the code file of the basic software, the code file of the middle layer and the code file of the application software to obtain an executable file. The software integration method and device can be compatible with various modes for software development, rapid integration of the software is facilitated, and the software integration efficiency is improved.

The invention relates to the technical field of vehicle control, and provides a redundancy control method and system for an anti-lock braking system under an EMB system and a vehicle. The redundancy control method comprises the steps that in response to a clamping force request transmitted by a central domain controller, motor control is conducted; the method comprises the following steps: in response to a central domain controller fault signal, judging a vehicle braking working condition, determining an initial clamping force request according to the vehicle braking working condition, triggering braking, adjusting the clamping force request according to a vehicle state, calculating a slip rate based on a vehicle wheel speed, comparing the slip rate with a slip rate target range, and adjusting the clamping force request according to a comparison result. Performing motor control; wherein the slip rate target range is adjusted according to the road surface condition obtained by recognizing the image of the road surface in front of the vehicle. The ABS function has redundancy control, rapid braking is guaranteed, meanwhile, longitudinal braking force and lateral stability are better balanced, and higher guarantee is provided for driving safety.

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 belongs to the field of vehicle remote communication, and discloses an intelligent cabin area controller log remote acquisition system and method, and the system comprises a remote application interface which is used for obtaining a man-machine interaction interface for logs; the TSP remote service platform is used for managing the log pulling instruction network interface, the log uploading network interface and the storage of the uploaded logs; the intelligent cockpit domain controller CDC and the large screen are used for internally recording and storing system and application running logs of all modules running in the latest time period; and the 4G module is used for establishing mobile communication with the outside. According to the invention, the vehicle machine, voice, navigation, instrument and bus logs of the intelligent cockpit domain controller can be obtained under the condition of being far away from the vehicle, and development and test personnel are helped to analyze the intelligent cockpit problem. When a use problem occurs in the vehicle intelligent cockpit domain, the method can select different modes to obtain the intelligent cockpit domain controller log according to an actual scene, so as to help development and test personnel to remotely check the problem.

The invention discloses a service-oriented high-voltage regulation electricity supplementing method and device and a storage medium. Comprising the steps that the SOC and the voltage of a low-voltage battery pack are continuously monitored, when the SOC of the low-voltage battery pack is smaller than a charging SOC threshold value and an enabling position is actively awakened, a back-domain controller, a vehicle control unit and a front-domain controller are awakened, and information of the low-voltage battery pack is sent to the back-domain controller; the back-domain controller judges that conditions are met, sends a charging request to the vehicle control unit, charges the low-voltage battery pack through the vehicle control unit and the high-voltage battery pack, customized services are made on the basis of an SOA framework and high-voltage power-on, during charging, high-voltage power-on can be achieved at an OFF gear, only the target controller is awakened on the basis of sub-network segment management, simultaneous awakening of the whole vehicle is avoided, power consumption is reduced, and power consumption is reduced. And meanwhile, the back-domain controller can be awakened only when the back-domain controller is at the active awakening enabling position, so that the problems of frequent network awakening, electric energy loss and battery safety are solved, and the requirements of accurate awakening, power saving, safety and high efficiency of power compensation are met.

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 invention relates to the technical field of platform door control, in particular to a communication-based SIL4 platform door system, which comprises a domain controller, a DCU (Data Control Unit), an external interface and other subsystem equipment, the platform door system realizes interconnection and intercommunication with a signal system and other subsystem equipment through bus connection and hard wire connection, high safety and high reliability of the system are ensured, a dual-CPU architecture is adopted in a domain controller and a door control unit, dual processing and cross verification can be carried out on data by utilizing a dual-CPU design, and the system is convenient to use. The accuracy and consistency of data are ensured, so that an existing relay circuit is replaced to reach an SIL4 security level; a data transparent transmission mechanism is carried out by using a single CPU, so that the data transmission delay is reduced, and the real-time response capability is improved.

The invention relates to an automatic driving virtual-real fusion test system and method based on simulation scene real vehicle injection. The system comprises a cloud control platform end and a real vehicle end. The cloud control platform end comprises a map module and a first interactive scene generation module, the real vehicle end comprises a scene injection machine, a domain controller and a real vehicle, and a second interactive scene generation module is embedded in the scene injection machine; the testing process comprises the steps that the cloud control platform end issues a lane-level task path generated by the map module and an interactive scene which is generated by the first interactive scene generation module and contains background traffic flow core data to the scene injection machine; the scene injection machine forwards the lane-level task path and the interactive scene to a domain controller; and the domain controller performs algorithm planning according to the background traffic flow core data, sends a motion instruction to a real vehicle for tracing, and returns sensing information to the scene injection machine. Compared with the prior art, the method has the advantages of high test reliability and high efficiency.

The invention discloses a hardware-in-the-loop test of an automatic driving domain controller. The hardware-in-the-loop test comprises a real-time processor and a graphic workstation, the graphic workstation is used for generating simulated traffic scene information, generating simulated sensor information based on the simulated traffic scene information, and transmitting the simulated traffic scene information and first simulated sensor information in the simulated sensor information to the automatic driving domain controller; transmitting second simulation sensor information in the simulation sensor information to a real-time processor; the real-time processor is used for transmitting the second simulation sensor information to the automatic driving domain controller and receiving vehicle control information fed back by the automatic driving domain controller. According to the hardware-in-the-loop test system and device of the automatic driving domain controller and the storage medium provided by the invention, the problem that scene information is not matched with sensor sensing information during hardware-in-the-loop test can be avoided, and the test accuracy is improved.

The invention discloses a vehicle integrated domain controller framework, a vehicle management system and an automobile, the vehicle integrated domain controller framework comprises a low-voltage battery, a battery management module, a low-voltage power distribution module and a heat management module, the low-voltage battery is electrically connected with the low-voltage power distribution module, and the battery management module is electrically connected with the low-voltage power distribution module. The low-voltage power distribution module is provided with a low-voltage load access end used for accessing a low-voltage load, the thermal management module is provided with a thermal management load access end used for accessing a thermal management load, and the battery management module, the low-voltage power distribution module and the thermal management module share the same controller. A function of managing a low-voltage battery and a function of managing a thermal management load and a low-voltage load are integrated in the controller, control modules in a battery management scheme, a low-voltage power distribution scheme and a thermal management scheme are creatively integrated into the same controller, a control circuit is simplified, and the controller has the advantages of being low in cost, simple in structure and the like.

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.

The invention relates to the technical field of vehicle-mounted network testing, and discloses a domain controller network testing system, method and device, and the system comprises a plurality of vehicle-mounted Ethernet converters, an Ethernet switch and a bus controller. Each vehicle-mounted Ethernet converter is respectively connected with one domain controller to be tested, and each vehicle-mounted Ethernet converter is connected with the Ethernet switch; each domain controller to be tested is also connected with the bus controller; the Ethernet switch and the bus controller are both connected to an upper computer; the upper computer is configured to receive on-off configuration for a channel between the Ethernet switch and at least one domain controller; a test demand is received, and a test signal is sent to the bus controller; and acquiring a message received and transmitted by the specified bus monitoring port or the mirror image port to obtain a test result. According to the invention, channel configuration between domain controllers can be carried out at will, and various test requirements are met.

The invention discloses a virtual machine access control data acquisition method and a terminal, and the method comprises the steps: building a virtual machine cluster, and enabling virtual machines in the virtual machine cluster to store corresponding configuration information through employing a binary tree in advance; acquiring bridging end information by using a tuner, and transmitting the bridging end information to an external network controller, so that the external network controller transmits the bridging end information to a local area controller; the local area controller is used for matching the received bridging end information with the configuration information in the corresponding virtual machine cluster, if matching succeeds, the configuration information is returned to the external network controller, and the external network controller opens and uses the corresponding virtual machine according to the received configuration information and snapshots the use operation. According to the method, the virtual machine with the configuration information consistent with the bridging end information is provided, the virtual attack environment is provided, the requirements of the attacker are met, the operation of the attacker is snapshotted, the data of the attacker is captured, and the system security is protected.

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 discloses an end-to-end automobile chassis integrated control method, which comprises the following steps of: 1, collecting and analyzing vehicle sensor signals in a real driving scene so as to construct a chassis state training database with labels; 2, establishing a chassis control training instruction library based on a chassis state training database; 3, constructing an operation evaluation network, and training to obtain an operation evaluation model; 4, constructing a chassis integrated control network, and training to obtain a chassis integrated control model; 5, constructing a chassis domain controller based on the joint learning network; and 6, collecting sensor data through the chassis domain controller to supplement the chassis state training database. According to the invention, the control instruction can be directly output based on the information of the vehicle chassis sensor, so that the stability control of the vehicle in a complex and changeable driving environment can be realized.

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.

A method of cross-domain policy orchestration may include executing, with a cross-domain automation (CDA) controller, a macro-segmentation of a plurality of domains based at least in part on metadata defining a mapping to a corresponding plurality of domain controllers, and executing, with the CDA controller, a micro-segmentation of policies within a group based at least in part on a merged policy matrix obtained from policies of the domain controllers.